Growth of Urban Peripheries with Reference to Inconsistent Spatial Planning Policies: South-east Amman as case study

The rapid random spatial growth of the urban peripheries of Amman calls for an immediate reconsideration of the enforced planning policies that govern the spatial growth of those settlements. However, an overall assessment of the current planning mechanisms is urgently needed.
The article addresses some spatial factors which are impacting the peripheral growth at the south-eastern edge of Amman. It includes the urban land policies that are generated by Greater Amman Municipality GAM.The adoption of decentralization as a prevailing framework for urban policy in the latter two GAM
master plans forms a turning point at the planning level. Such concept has evolved through the application of rigid frameworks that culminated into complex urban superposition.
This study deals with a marginal settlement which lies at the south-eastern edge of the Greater Amman Municipality, i.e. Muwaqqer. The analysis intends to explore how Muwaqqer has expanded randomly,
testing in the meantime the relationship between Amman city core and its peripheral settlements both spatially and functionally. Light shall also be shed on the two major master plans of GAM: The Greater Amman Comprehensive and Development Plan (GACDP) of 1986, and the Amman Master Plan:
Metropolitan Growth of 2008, tackling their impact on the peripheral district in question.
The study proposes some feasible planning measures to pave the way for better control of the rapid urban growth at the peripheral areas with the aim to mitigate the negative aspects which adversely affecting the urban structure of Amman.
However, the paper also examines the urban transformation of the chosen settlement which further aggravates the multi-jurisdictional divisions that initially meant to sustain an urban uniformity for a modern Amman entity.

General information

Publication status: Published
MoE publication type: B1 Article in a scientific magazine
Organisations: University of Jordan, Architectural department, Hashemite University, Zarqa-Jordan
Contributors: Amr, A., Saad, M.
Number of pages: 15
Pages: 54-68
Publication date: Mar 2015
Peer-reviewed: No

Publication information

Journal: European International Journal of Science and Technology
Volume: 4
Issue number: 3
Article number: 3
ISSN (Print): 2304-9693
Original language: English
ASJC Scopus subject areas: Urban Studies, Geography, Planning and Development, Architecture
Keywords: urban planning, Urban areas, Urban development, regional development, timber construction, innovation network, development platform, Urban form, urban processes

Research output: Contribution to journalArticleScientific

Mezhdunarodnaya konferencia po pozicionirovaniyu i navigacii vnutri pomeshhenij

General information

Publication status: Published
MoE publication type: B1 Article in a scientific magazine
Organisations: Department of Automation Science and Engineering, Research area: Dynamic Systems, Research group: Positioning
Contributors: Piche, R. A.
Pages: 122-124
Publication date: 2015
Peer-reviewed: No

Publication information

Journal: Giroskopiya I Navigatsiya
Volume: 88
Issue number: 1
ISSN (Print): 0869-7035
Original language: Russian

Bibliographical note

xoa ei tarkistettu

Research output: Contribution to journalArticleScientific

Real-time measurements of dissipative solitons in a mode-locked fiber laser

Dissipative solitons are remarkable localized states of a physical system that arise from the dynamical balance between nonlinearity, dispersion and environmental energy exchange. They are the most universal form of soliton that can exist in nature, and are seen in far-from-equilibrium systems in many fields including chemistry, biology, and physics. There has been particular interest in studying their properties in mode-locked lasers producing ultrashort light pulses, but experiments have been limited by the lack of convenient measurement techniques able to track the soliton evolution in real-time. Here, we use dispersive Fourier transform and time lens measurements to simultaneously measure real-time spectral and temporal evolution of dissipative solitons in a fiber laser as the turn-on dynamics pass through a transient unstable regime with complex break-up and collision dynamics before stabilizing to a regular mode-locked pulse train. Our measurements enable reconstruction of the soliton amplitude and phase and calculation of the corresponding complex-valued eigenvalue spectrum to provide further physical insight. These findings are significant in showing how real-time measurements can provide new perspectives into the ultrafast transient dynamics of complex systems.

General information

Publication status: Published
MoE publication type: B1 Article in a scientific magazine
Organisations: Photonics, Research group: Nonlinear Fiber Optics, Research area: Optics
Contributors: Ryczkowski, P., Närhi, M., Billet, C., Merolla, J. -., Genty, G., Dudley, J. M.
Publication date: 26 Jun 2017
Peer-reviewed: No

Publication information

Journal: arXiv eprint
ISSN (Print): 2331-8422
Original language: English
Keywords: physics.optics, nlin.PS
Electronic versions: 

Bibliographical note

See also M. Narhi, P. Ryczkowski, C. Billet, G. Genty, J. M. Dudley, Ultrafast Simultaneous Real Time Spectral and Temporal Measurements of Fibre Laser Modelocking Dynamics, 2017 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference, paper EE-3.5 (2017)

Source: ArXiv
Source ID: http://arxiv.org/abs/1706.08571v2

Research output: Contribution to journalArticleScientific

Accurate impedance model of grid-connected inverter for small-signal stability assessment in high-impedance grid

General information

Publication status: Accepted/In press
MoE publication type: A1 Journal article-refereed
Organisations: Electrical Engineering, Research area: Power engineering, Research group: Power electronics, Automation Technology and Mechanical Engineering, Research group: Automation and Systems Theory
Contributors: Messo, T., Roinila, T., Aapro, A., Luhtala, R.
Publication date: 1 Feb 2019
Peer-reviewed: Yes

Publication information

Journal: IEEJ JOURNAL OF INDUSTRY APPLICATIONS
Volume: 8
Issue number: 3
Article number: 3
ISSN (Print): 2187-1094
Original language: English

Research output: Contribution to journalArticleScientificpeer-review

A Co-creation Centre for University–Industry Collaboration – A Framework for Concept Development

Abstract It is argued in general that future success in effective innovation creation is built on the ability to connect and manage talent, partnerships and related practical innovation processes. This makes it challenging for a university to develop an ecosystem of knowledge creation. The full benefit from a university can only be obtained if the university and society are organically linked together. The needs of society have to be at the centre of a university's activities, and flexible adjustment to changing needs is necessary but often lacking. Campus management has a major role in the facilitation of multidisciplinary interaction between students, scientists, entrepreneurs and other industry partners that inspire each other with different perspectives on the same subject. One significant tool to support open innovation with diverse stakeholders is to provide supportive spaces with relevant services. This paper aims to identify the requirements of a Co-creation Centre as a concept serving the third role of auniversity. The literature review was conducted and, based on the result, this paper proposes a conceptual framework for capturing the key requirements for developing a multiuser Co-creation Centre. The framework consists ofthe requirements on the demand and supply sides of campus management. The main findings in this paper are that different modes of knowledge conversion have different capabilities tosupport knowledge co-creation requirements. Knowledge co-creation process requirements in the multiuser Co-creation Centre for university–industry collaboration are best supported by originating “Ba”, which means the place where individuals share feelings, emotions, experiences, and mental models and the place where the knowledge-creation process begins. The results contribute to the concept development in campus management and provide a starting point for evaluating the success of multidisciplinary and multi-actor innovation environments.

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Department of Civil Engineering
Contributors: Huhtelin, M., Nenonen, S.
Pages: 137 - 145
Publication date: 2015
Peer-reviewed: Yes

Publication information

Journal: Procedia Economics and Finance
Volume: 21
ISSN (Print): 2212-5671
Original language: English
Keywords: spaces and services.
Source: Bibtex
Source ID: urn:eaca1c4af451146bd5fea3acaaa20e86

Research output: Contribution to journalArticleScientificpeer-review

Acquisition of E5 Galileo signals in Matlab

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Research group: Wireless Communications and Positioning, Department of Electronics and Communications Engineering, Wireless Communications and Positioning (WICO)
Contributors: Stepanova, E., Kudryavtsev, I., Lohan, E.
Number of pages: 7
Pages: 36-42
Publication date: 2015
Peer-reviewed: Yes

Publication information

Journal: Procedia Engineering
Volume: 104
ISSN (Print): 1877-7058
Ratings: 
  • Scopus rating (2015): CiteScore 0.56 SJR 0.239 SNIP 0.566
Original language: English

Research output: Contribution to journalArticleScientificpeer-review

A Cross-Cultural and Gender-Based Perspective for Online Security: Exploring Knowledge, Skills and Attitudes of Higher Education Students.

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Department of Pervasive Computing, Research area: Information security, University of Tampere, Department of Computer Science and Information Systems, University of Jyväskylä, Department of Computer Engineering and Information Technology of College of Information and Communication Technology at the University of Dar Es Salaam, Beijing Institute of Petrochemical Technology, University of Patras
Contributors: Chaudhary, S., Zhao, Y., Berki, E., Valtanen, J., Li, L., Helenius, M., Mystakidis, S.
Pages: 57-71
Publication date: 2015
Peer-reviewed: Yes

Publication information

Journal: IADIS International Journal on WWW/Internet
Volume: 13
Issue number: 1
ISSN (Print): 1645-7641
Original language: English

Research output: Contribution to journalArticleScientificpeer-review

Adaptive fuzzy inference system based directional median filter for impulse noise removal

Noise filtering in presence of important image detail information is considered as challenging task in imaging applications. Use of fuzzy logic based techniques is capturing more focus since last decade to deal with these challenges. In order to tackle conflicting issues of noise smoothing and detail preservation, this paper presents a novel approach using adaptive fuzzy inference system for random valued impulse noise detection and removal. The proposed filter uses the intensity based directional statistics to construct adaptive fuzzy membership functions which plays an important role in fuzzy inference system. Fuzzy inference system constructed in this way is used by the noise detector for accurate classification of noisy and noise-free pixels by differentiating them from edges and detailed information present in an image. After classification of pixels, noise adaptive filtering is performed based on median and directional median filter using the information provided by the noise detector. Simulation results based on well known quantitative measure i.e., peak-signal-to-noise ratio (PSNR) show the effectiveness of proposed filter.

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Department of Electronics and Communications Engineering, International Islamic University Islamabad
Contributors: Habib, M., Hussain, A., Rasheed, S., Ali, M.
Number of pages: 9
Pages: 689-697
Publication date: 1 May 2016
Peer-reviewed: Yes

Publication information

Journal: AEU International Journal of Electronics and Communication
Volume: 70
Issue number: 5
ISSN (Print): 1434-8411
Ratings: 
  • Scopus rating (2016): CiteScore 1.49 SJR 0.32 SNIP 0.964
Original language: English
ASJC Scopus subject areas: Electrical and Electronic Engineering
Keywords: Adaptive threshold, Fuzzy inference system, Noise detection, Noise removal, Random-valued impulse noise

Bibliographical note

INT=elt,"Ali, Mubashir"

Source: Scopus
Source ID: 84959549053

Research output: Contribution to journalArticleScientificpeer-review

Air pressure difference between indoor and outdoor or staircase in multi-family buildings with exhaust ventilation system in Finland

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Life Cycle Effectiveness of the Built Environment (LCE@BE), Research group: Concrete and Bridge Structures, Research area: Structural Engineering, Department of Civil Engineering, Research group: Building Physics, Natl Inst Hlth & Welf, Finland National Institute for Health & Welfare, Dept Environm Hlth
Contributors: Leivo, V., Kiviste, M., Aaltonen, A., Turunen, M., Haverinen-Shaughnessy, U.
Number of pages: 6
Pages: 1218-1223
Publication date: 2015
Peer-reviewed: Yes

Publication information

Journal: Energy Procedia
Volume: 78C
Article number: 78C
ISSN (Print): 1876-6102
Ratings: 
  • Scopus rating (2015): CiteScore 0.92 SJR 0.359 SNIP 0.562
Original language: English

Research output: Contribution to journalArticleScientificpeer-review

Alkyl thiophene vinylene electropolymerization in C8mimPF6, potential use in solar cells

We report the electrosynthesis of a novel semiconductor polymer based on alkyl vinylthiophene derivative in the presence of an ionic liquid (IL). The polymerization was performed under galvanostatic conditions and the polymer was studied as potential donor component of a multilayer heterojunction organic solar cell (OSC). The monomer used was (E)-1,2-di-(3-octyl-2-thienyl) vinylene (OTV) and the IL used for the electropolymerization was 1-octyl-3-methylimidazole hexafluorophosphate C8mimPF6. Optical properties, stability and morphology of the polymer were analyzed using FT-IR, UV-vis, Raman and XPS spectroscopy. Voltammetry analysis and scanning electron microscopy (SEM-EDX) were also performed on the polymer. The OSC assembled with the polymer of OTV was used as electro donor and C60 as acceptor. Molybdenum trioxide (MoO3) and bathocuproine (BCP) were used as buffer layer between anode and cathode respectively. I-V curves, in the dark and under AM 1.5 solar simulator were performed to measure its efficiency.

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Chemistry and Bioengineering, Research group: Supramolecular photochemistry, Research group: Chemistry & Advanced Materials
Contributors: Rojas, V., Martinez, F., Bernede, J. C., Guenadez, L. C., Efimov, A., Lemmetyinen, H.
Number of pages: 13
Pages: 405-417
Publication date: May 2017
Peer-reviewed: Yes

Publication information

Journal: Materials Sciences and Applications
Volume: 8
Issue number: 5
ISSN (Print): 2153-117X
Original language: English

Research output: Contribution to journalArticleScientificpeer-review

Analysis of outdoor and indoor propagation at 15 GHz and millimeter wave frequencies in microcellular environment

The main target of this article is to perform the multidimensional analysis of multipath propagation in an indoor and outdoor environment at higher frequencies i.e. 15 GHz, 28 GHz and 60 GHz, using “sAGA” a 3D ray tracing tool. A real world outdoor Line of Sight (LOS) microcellular environment from the Yokusuka city of Japan is considered for the analysis. The simulation data acquired from the 3D ray tracing tool includes the received signal strength, power angular spectrum and the power delay profile. The different propagation mechanisms were closely analyzed. The simulation results show the difference of propagation in indoor and outdoor environment at higher frequencies and draw a special attention on the impact of diffuse scattering at 28 GHz and 60 GHz. In a simple outdoor microcellular environment with a valid LOS link between the transmitter and a receiver, the mean received signal at 28 GHz and 60 GHz was found around 5.7 dB and 13 dB inferior in comparison with signal level at 15 GHz. Whereas the difference in received signal levels at higher frequencies were further extended in an indoor environment due to higher building penetration loss. However, the propagation and penetration loss at higher frequency can be compensated by using the antenna with narrow beamwidth and larger gain.

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Electrical Engineering, Research group: Laboratory of Radio Network Planning, Research group: Wireless Communications and Positioning
Contributors: Sheikh, M. U., Lempiainen, J.
Number of pages: 8
Pages: 160-167
Publication date: 2018
Peer-reviewed: Yes

Publication information

Journal: Advances in Science, Technology and Engineering Systems
Volume: 3
Issue number: 1
ISSN (Print): 2415-6698
Original language: English
ASJC Scopus subject areas: Engineering (miscellaneous), Management of Technology and Innovation, Physics and Astronomy (miscellaneous)
Keywords: 3D ray tracing, 5G, Microcellular, Millimeter wave frequencies, Multipath propagation, System performance
Source: Scopus
Source ID: 85061718805

Research output: Contribution to journalArticleScientificpeer-review

Architecture beyond signs and symbols : Zumthor's response to the problems of aesthetics

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: School of Architecture, Research group: History of Architecture
Contributors: Passinmäki, P.
Number of pages: 4
Pages: 325-328
Publication date: 12 May 2016
Peer-reviewed: Yes

Publication information

Journal: ARQ-Architectural Research Quarterly
Volume: 19
Issue number: 4
ISSN (Print): 1359-1355
Ratings: 
  • Scopus rating (2016): CiteScore 0.06 SJR 0.127 SNIP 0.244
Original language: English

Research output: Contribution to journalArticleScientificpeer-review

Assessing coupling dynamics from an ensemble of time series

Finding interdependency relations between time series provides valuable knowledge about the processes that generated the signals. Information theory sets a natural framework for important classes of statistical dependencies. However, a reliable estimation from information-theoretic functionals is hampered when the dependency to be assessed is brief or evolves in time. Here, we show that these limitations can be partly alleviated when we have access to an ensemble of independent repetitions of the time series. In particular, we gear a data-efficient estimator of probability densities to make use of the full structure of trial-based measures. By doing so, we can obtain time-resolved estimates for a family of entropy combinations (including mutual information, transfer entropy and their conditional counterparts), which are more accurate than the simple average of individual estimates over trials. We show with simulated and real data generated by coupled electronic circuits that the proposed approach allows one to recover the time-resolved dynamics of the coupling between different subsystems.

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Department of Mathematics, University of Electronic Science and Technology of China, Institute of Computer Science (ICS) of the Foundation for Research and Technology - Hellas (FORTH), Lab of Neurophysics and Neurophysiology, Hefei National Laboratory for Physical Sciences at the Microscale, Instituto de Fisica Interdisciplinar y Sistemas Complejos (CSIC-UIB), Campus Universitat de les Illes Balears, Institut für Kognitionswissenschaft, University of Osnabrück, University of Tartu, Netherlands Institute for Neuroscience
Contributors: Gómez-Herrero, G., Wu, W., Rutanen, K., Soriano, M. C., Pipa, G., Vicente, R.
Number of pages: 13
Pages: 1958-1970
Publication date: 2015
Peer-reviewed: Yes

Publication information

Journal: Entropy
Volume: 17
Issue number: 4
ISSN (Print): 1099-4300
Ratings: 
  • Scopus rating (2015): CiteScore 1.99 SJR 0.551 SNIP 1.116
Original language: English
ASJC Scopus subject areas: Physics and Astronomy(all)
Keywords: Ensemble, Entropy, Estimator, Time series, Transfer entropy, Trial

Bibliographical note

EXT="Gómez-Herrero,Germán"

Source: Scopus
Source ID: 84930319366

Research output: Contribution to journalArticleScientificpeer-review

Assessing the usefulness of an early idea development tool among experienced researchers

We test a novel ideation tool developed for early idea development among experienced academic researchers. We presented the
Impact Canvas® tool to experienced researchers who assessed the usefulness of the tool in early idea development. This paper analyses
their perceptions of the tool: its usability and visual appeal, content elements, ability to facilitate collaboration and motivate them
personally. Our findings imply that the employment background of experienced researchers has an impact on how useful they consider
the tool. Researchers with a background in the public sector appreciate the tool significantly more than researchers who do not have
similar working experiences.

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Industrial and Information Management, Research group: Center for Innovation and Technology Research, Innovation Services, Research Services, University of Tampere
Contributors: Saari, U., Aarikka-Stenroos, L., Boedeker, S., Köppä, L., Langwaldt, J.
Number of pages: 6
Pages: 3-8
Publication date: 22 Dec 2017
Peer-reviewed: Yes

Publication information

Journal: CERN IdeaSquare Journal of Experimental Innovation
Volume: 1
Issue number: 2
ISSN (Print): 2413-9505
Original language: English
Keywords: Canvas tool, Early idea development, Ideation process, Ideation tool
Electronic versions: 

Research output: Contribution to journalArticleScientificpeer-review

Automatization and stress analysis data of CoCr laser weld fatigue tests

This work includes raw and analyzed test data when using a recently developed fatigue test method for miniature laser welds in cobalt-chromium (CoCr) alloy joints [1]: 10.1016/j.jmbbm.2019.07.004. The automization of fatigue tests is crucial for saving costs and personnel resources and that is the reason why the atomization threshold and the resulting spectrum data related to CoCr welds are provided here. The finite element method based stress computation output is provided related to shearing-mode tests to support the dataset as a whole. In addition, the compositional data of the parent material and the laser weld are given.

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Materials Science and Environmental Engineering, Research group: Plastics and Elastomer Technology, Orton Orthopaedic Hospital, Surface and Corrosion Science
Contributors: Kanerva, M., Besharat, Z., Pärnänen, T., Jokinen, J., Honkanen, M., Sarlin, E., Göthelid, M., Schlenzka, D.
Publication date: 1 Oct 2019
Peer-reviewed: Yes

Publication information

Journal: Data in Brief
Volume: 26
Article number: 104374
ISSN (Print): 2352-3409
Original language: English
ASJC Scopus subject areas: General
Keywords: Automatization, CoCr, Fatigue, Laser, Testing, Welding

Bibliographical note

EXT="Pärnänen, T."

Source: Scopus
Source ID: 85072173471

Research output: Contribution to journalArticleScientificpeer-review

Building new computational models to support health behavior change and maintenance: new opportunities in behavioral research

Adverse and suboptimal health behaviors and habits are responsible for approximately 40 % of preventable deaths, in addition to their unfavorable effects on quality of life and economics. Our current understanding of human behavior is largely based on static “snapshots” of human behavior, rather than ongoing, dynamic feedback loops of behavior in response to ever-changing biological, social, personal, and environmental states. This paper first discusses how new technologies (i.e., mobile sensors, smartphones, ubiquitous computing, and cloud-enabled processing/computing) and emerging systems modeling techniques enable the development of new, dynamic, and empirical models of human behavior that could facilitate just-in-time adaptive, scalable interventions. The paper then describes concrete steps to the creation of robust dynamic mathematical models of behavior including: (1) establishing “gold standard” measures, (2) the creation of a behavioral ontology for shared language and understanding tools that both enable dynamic theorizing across disciplines, (3) the development of data sharing resources, and (4) facilitating improved sharing of mathematical models and tools to support rapid aggregation of the models. We conclude with the discussion of what might be incorporated into a “knowledge commons,” which could help to bring together these disparate activities into a unified system and structure for organizing knowledge about behavior.

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Department of Signal Processing, Research group: Personal Health Informatics-PHI, Research Community on Data-to-Decision (D2D), University of Southern California, Arizona State University, Northeastern University, National Institutes of Health, Bethesda, Northwestern University, Wharton School, University of Pennsylvania, Scientific Institute Hospital San Raffaelle, Valencia Polytechnical University, Columbia University in the City of New York, VTT Technical Research Centre of Finland
Contributors: Spruijt-Metz, D., Hekler, E., Saranummi, N., Intille, S., Korhonen, I., Nilsen, W., Rivera, D. E., Spring, B., Michie, S., Asch, D. A., Sanna, A., Salcedo, V. T., Kukakfa, R., Pavel, M.
Number of pages: 12
Pages: 335-346
Publication date: 17 Sep 2015
Peer-reviewed: Yes

Publication information

Journal: Translational Behavioral Medicine
Volume: 5
Issue number: 3
ISSN (Print): 1869-6716
Ratings: 
  • Scopus rating (2015): CiteScore 1.63 SJR 0.754 SNIP 0.838
Original language: English
ASJC Scopus subject areas: Behavioral Neuroscience, Applied Psychology
Keywords: Computational models of behavior, Connected health, Health-related behavior, Just-in-time adaptive interventions, mHealth, Mobile health, Real-time interventions

Bibliographical note

EXT="Saranummi, Niilo"

Source: Scopus
Source ID: 84939204163

Research output: Contribution to journalArticleScientificpeer-review

Cancer research in the era of next-generation sequencing and big data calls for intelligent modeling

We examine the role of big data and machine learning in cancer research. We describe an example in cancer research where gene-level data from The Cancer Genome Atlas (TCGA) consortium is interpreted using a pathway-level model. As the complexity of computational models increases, their sample requirements grow exponentially. This growth stems from the fact that the number of combinations of variables grows exponentially as the number of variables increases. Thus, a large sample size is needed. The number of variables in a computational model can be reduced by incorporating biological knowledge. One particularly successful way of doing this is by using available gene regulatory, signaling, metabolic, or context-specific pathway information. We conclude that the incorporation of existing biological knowledge is essential for the progress in using big data for cancer research.

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Department of Signal Processing, Research group: Computational Systems Biology
Contributors: Yli-Hietanen, J., Ylipää, A., Yli-Harja, O.
Publication date: 11 Apr 2015
Peer-reviewed: Yes

Publication information

Journal: Chinese Journal of Cancer
Volume: 34
Issue number: 10
Article number: 12
ISSN (Print): 1944-446X
Ratings: 
  • Scopus rating (2015): CiteScore 2.63 SJR 1.081
Original language: English
Keywords: Cancer research, Big data, Mathematical modeling, GASTRIC-CANCER, MODULES
Source: WOS
Source ID: 000360225300001

Research output: Contribution to journalArticleScientificpeer-review

Cold-formed RHS T joints with initial geometrical imperfections

Generally, numerical simulations of structures are carried out in such a way as to most accurately repeat their real behavior. The current rules for finite element modeling of tubular joints oblige scientists and engineers to construct their numerical models considering initial imperfections. However, not all joints are sensitive to initial imperfections. Often consideration of initial imperfections brings no reasonable improvements in the accuracy of results, but severely complicates numerical simulations. In such cases, the effect of geometrical imperfections can be effectively replaced by a simple theoretical equation or neglected entirely. This paper evaluates the effect of initial geometrical imperfections on the structural behavior of cold-formed rectangular hollow section T joints. Imperfections are simulated using the conventional approach for thin-walled structures, applying corresponding buckling modes to the perfect geometry. The paper analyzes several buckling modes and their combinations to identify the most rational technique for simulation of imperfections under in-plane bending and axial loading. Based on the obtained results, parametric studies are conducted to investigate the effect of initial imperfections on joints with various geometry and material properties. The results demonstrate that initial imperfections reduce the resistance and initial stiffness of joints. However, the observed effect has been found sufficiently small to be safely ignored in computational analyses.

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Civil Engineering, St. Petersburg State Polytechnical University
Contributors: Garifullin, M., Bronzova, M. K., Heinisuo, M., Mela, K., Pajunen, S.
Number of pages: 14
Pages: 81-94
Publication date: 2018
Peer-reviewed: Yes

Publication information

Journal: Magazine of Civil Engineering
Volume: 80
Issue number: 4
ISSN (Print): 2071-4726
Ratings: 
  • Scopus rating (2018): CiteScore 2.75 SJR 1.062 SNIP 2.28
Original language: English
ASJC Scopus subject areas: Civil and Structural Engineering, Building and Construction
Keywords: Finite element analysis, Hollow section joint, Imperfection, Initial stiffness, Resistance
Electronic versions: 
Source: Scopus
Source ID: 85051540096

Research output: Contribution to journalArticleScientificpeer-review

Collagen-immobilized polyimide membranes for retinal pigment epithelial cell adherence and proliferation

Degenerative retinal diseases are a leading cause of visual loss and irreversible blindness, particularly in the developed world. Retinal pigment cell (RPE) transplantation is nowadays considered the most promising therapeutic approach for certain retinal diseases, and the presence of a supportive scaffold has been considered essential to ensure the success of the implant. In this work, collagen IV was covalently immobilized to the surface of polyimide membranes, with the purpose of developing scaffold materials for RPE cell culture. The covalent modification method involved four steps: argon-plasma treatment, acrylic acid graft polymerization, surface activation, and finally immobilization of collagen type IV. Collagen-modified membranes did not become more rough but became significantly more hydrophilic than the unmodified and dip-coated controls. ARPE-19 cell morphology and attachment were studied by immunofluorescence staining and confocal microscopy. Covalently modified surfaces showed cell attachment and cell properties comparable to the uncoated and dip-coated controls. This work demonstrated the potential of collagen IV-immobilized polyimide membranes as substrates for the growth of ARPE-19 cells.

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Faculty of Biomedical Sciences and Engineering, Research group: Biomaterials and Tissue Engineering Group, BioMediTech, University of Tampere, BioMediTech
Contributors: Teymouri, S., Calejo, M. T., Hiltunen, M., Sorkio, A. E., Juuti-Uusitalo, K., Skottman, H., Kellomäki, M.
Publication date: 6 Mar 2017
Peer-reviewed: Yes

Publication information

Journal: Cogent Chemistry
Volume: 3
Issue number: 1
ISSN (Print): 2331-2009
Original language: English
Keywords: Polyimide, Retinal pigment epithelial cell, SURFACE MODIFICATION, tissue engineering

Research output: Contribution to journalArticleScientificpeer-review

Comparative investigation of remote tracking devices for aging care

Tracking devices help the elderly patients to remain safe, secure and traceable in case of getting lost or in an emergency. This research work was conducted to evaluate the appropriateness of few commercially available tracking devices for aging people, by identifying their usefulness, efficiency, limitations and further improvements. Research involved two steps; literature review about two existing tracking devices simply termed device A and device B, followed by a performance and comparative analysis of the aforementioned devices by applying basic statistics on the results obtained from a questionnaire survey. Devices were used by two groups of people: aging (>70 year old) and middle-aged patients (less than 70 years old) who reported their satisfaction levels about the said devices on a scale of one to five. These devices were found helpful in reducing the dependency of the elderly on others and raised their privacy values. However, these were not recommended for severe memory loss or later stage of critical staged dementia patients because learning and memorizing the process of handling these devices can be difficult for them. Overall, the performance of device B outplayed device A while comparing all considered device parameters. The calling feature of device B appeared to be an appealing characteristic with mean satisfaction levels of 4.9 textpm 0.32 and 4.7 textpm 0.48 as reported by the middle-aged and aging groups, respectively. These devices will be helpful in decreasing unnecessary rush at health care centers or lost person reporting in police. In upcoming years, these devices can be developed to remotely monitor the movement of the patient.

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Faculty of Biomedical Sciences and Engineering
Contributors: Munir, M. W., Shahid, N., Omair, S. M., Munir, G., Ul Haque, M. Z.
Number of pages: 6
Pages: 261-266
Publication date: 1 Sep 2017
Peer-reviewed: Yes

Publication information

Journal: INTERNATIONAL JOURNAL OF INFORMATION TECHNOLOGY
Volume: 9
Issue number: 3
ISSN (Print): 2511-2112
Original language: English
Source: Bibtex
Source ID: urn:3fb5001f93a07dc83f4e1bd74b4d0420

Research output: Contribution to journalArticleScientificpeer-review

Comparison of Detection Techniques for Multipath Propagation of Pseudolite Signals Used in Dense Industrial Environments

Modern industrial environments with automated production machinery often require special indoor positioning and localization techniques, due t. The presence of objects and o. The infrastructure that may obstruc. The line-of-sight propagation or interfere wit. The behaviour of electromagnetic waves. These challenges are difficult to overcome b. The widely employed GNSS positioning system designed for use in outdoor areas. One of existing indoor positioning systems ar. The pseudolites, which transmit positioning signals similar t. The ones used by GNSS systems. One o. The sources of errors for pseudolites i. The multipath propagation. Our paper compare. The performances of several multipath propagation detection techniques, using Binary Offset Carrier (BOC) navigation signal and determines that errors increases sharply whe. The receiver uses navigation signals that have multipath propagation. The techniques that we present improv. The positioning accuracy, which leads to more precise industrial processes.

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Department of Electronics and Communications Engineering, Research group: Wireless Communications and Positioning, Ministry of National Education. University Politehnica of Bucharest
Contributors: Alexandru, R., Lohan, E.
Number of pages: 7
Pages: 1294-1300
Publication date: 2015
Peer-reviewed: Yes

Publication information

Journal: Procedia Engineering
Volume: 100
Issue number: C
ISSN (Print): 1877-7058
Ratings: 
  • Scopus rating (2015): CiteScore 0.56 SJR 0.239 SNIP 0.566
Original language: English
ASJC Scopus subject areas: Energy(all)
Keywords: Binary Offset Carrier, GNSS, Indoor positioning, Multipath propagation, Pseudolite
Source: Scopus
Source ID: 84925047361

Research output: Contribution to journalArticleScientificpeer-review

Core Project Team As a Management Entity for Construction Projects

The complexity of constructed facilities and the high degree of specialisation in design and construction generates very fragmented working environment for the construction project. Construction project organisations are built up from the units of organisations and they have arranged rules and procedures about how practicalities are to be done. A current perception of construction management is widely built around power, authority, and task orientation. This is resulting from the traditional focus of the construction industry on the technical and managerial features of construction projects. Organisations of construction projects vary substantially in their structure and this structure has considerable consequences to outcomes. Therefore, project management professionals continuously seek and establish new organisational and management structures and linkages to facilitate imperative cooperation between people and project partners. New understanding and amendments are broadening the content of construction project management and have provided new insights for successful construction operations. This paper is based on research according to this continuum by having focus on the appearances of management entity of a new kind, its significance and roles as a part of construction project management. The paper sought to summarize this literature and the survey study by focusing on the project management entity “core project team”, later “core team”. Drawing from this inclusive, the phenomenon of core team, the authors approach the field through six attributes, which have been selected to describe the new way for organising project management.

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Civil Engineering, Research group: Digitalization in the real estate and construction sector
Contributors: Keinänen, M., Kähkönen, K.
Number of pages: 10
Pages: 208-217
Publication date: 2018
Peer-reviewed: Yes

Publication information

Journal: In_bo: Ricerche e progetti per il territorio, la citta e l'architettura. Construction Management
Volume: 9
Issue number: 13
ISSN (Print): 2036-1602
Original language: English
ASJC Scopus subject areas: Civil and Structural Engineering
Keywords: Core project team, Core team, Construction management, Construction project, Construction teams

Research output: Contribution to journalArticleScientificpeer-review

Cross-Cultural Design of Mobile Mathematics Learning Service for South African Schools

In the era of mobile devices and services, researchers in the educational domain have been interested in how to support learning with mobile technology in both local and global contexts. Recent human-computer interaction (HCI) research in the educational domain has particularly focused on how to develop mobile learning services and how to evaluate the learning outcomes. However, learning occurs in a local cultural context and the impact of culturally sensitive issues of the design of mobile learning needs more attention. We studied mobile mathematics learning -service in a longitudinal research with over 30 South African schools during three years. Our aim was to understand culturally dependent issues which need to be taken into consideration in the design of mobile learning services. We found subjective and objective culturally dependent issues in the content, context, infrastructure and technology of mobile learning and therefore, subjects to cross-cultural research. In conclusion, we argue that localization enhances the user experience and therefore support learning.

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Department of Pervasive Computing, Research area: User experience, University of Tampere
Contributors: Vainio, T., Walsh, T., Varsaluoma, J.
Number of pages: 12
Pages: 81-93
Publication date: 2015
Peer-reviewed: Yes

Publication information

Journal: IADIS International Journal on WWW/Internet
Volume: 12
Issue number: 1
ISSN (Print): 1645-7641
Original language: English
Keywords: Cross-Cultural Design, Mobile Learning, Cultural Context, Subjective and Objective Culture

Bibliographical note

EXT="Vainio, Teija"

Research output: Contribution to journalArticleScientificpeer-review

Data including GROMACS input files for atomistic molecular dynamics simulations of mixed, asymmetric bilayers including molecular topologies, equilibrated structures, and force field for lipids compatible with OPLS-AA parameters

In this Data in Brief article we provide a data package of GROMACS input files for atomistic molecular dynamics simulations of multicomponent, asymmetric lipid bilayers using the OPLS-AA force field. These data include 14 model bilayers composed of 8 different lipid molecules. The lipids present in these models are: cholesterol (CHOL), 1-palmitoyl-2-oleoyl-sn-glycero-3-phosphatidylcholine (POPC), 1-palmitoyl-2-oleoyl-sn-glycero-3-phosphatidylethanolamine (POPE), 1-stearoyl-2-oleoyl-sn-glycero-3-phosphatidyl-ethanolamine (SOPE), 1-palmitoyl-2-oleoyl-sn-glycero-3-phosphatidylserine (POPS), 1-stearoyl-2-oleoyl-sn-glycero-3-phosphatidylserine (SOPS), N-palmitoyl-. D-erythro-sphingosyl-phosphatidylcholine (SM16), and N-lignoceroyl-. D-erythro-sphingosyl-phosphatidylcholine (SM24). The bilayers[U+05F3] compositions are based on lipidomic studies of PC-3 prostate cancer cells and exosomes discussed in Llorente et al. (2013) [1], showing an increase in the section of long-tail lipid species (SOPS, SOPE, and SM24) in the exosomes. Former knowledge about lipid asymmetry in cell membranes was accounted for in the models, meaning that the model of the inner leaflet is composed of a mixture of PC, PS, PE, and cholesterol, while the extracellular leaflet is composed of SM, PC and cholesterol discussed in Van Meer et al. (2008) [2]. The provided data include lipids' topologies, equilibrated structures of asymmetric bilayers, all force field parameters, and input files with parameters describing simulation conditions (md.mdp). The data is associated with the research article "Interdigitation of Long-Chain Sphingomyelin Induces Coupling of Membrane Leaflets in a Cholesterol Dependent Manner" (Róg et al., 2016) [3].

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Department of Physics, Research area: Computational Physics, Research group: Biological Physics and Soft Matter, University of Helsinki, University of Limerick, University of Oslo, Zora Biosciences Oy, MEMPHYS - Centre for Biomembrane Physics, University of Southern Denmark
Contributors: Róg, T., Orłowski, A., Llorente, A., Skotland, T., Sylvänne, T., Kauhanen, D., Ekroos, K., Sandvig, K., Vattulainen, I.
Number of pages: 4
Pages: 1171-1174
Publication date: 1 Jun 2016
Peer-reviewed: Yes

Publication information

Journal: Data in Brief
Volume: 7
ISSN (Print): 2352-3409
Ratings: 
  • Scopus rating (2016): CiteScore 0.5 SJR 0.226 SNIP 0.213
Original language: English
Keywords: Force field, GROMACS, Lipid, Lipidomics, Molecular dynamics simulations, Topology
Source: Scopus
Source ID: 84962909567

Research output: Contribution to journalArticleScientificpeer-review

Design: A Key Stage of Product Lifecycle

DESIGN\nappears to be a key and critical stage of product lifecycle. Different models have been introduced in previous research to describe the conceptual design process. The RFBS model is one of them extending and deepening the existing FBS models. A previous paper was presenting the model and assuming the possible execution of the process tasks automatically. The present paper provides an overview of the progresses that have been made in this direction during the past years. The model-driven engineering philosophy underlying the RFBS model of knowledge is concretely exemplified in this paper. The implementation through ontology and language such as SysML that was part of the model-driven engineering philosophy is concretely described in this paper in form of computer-aided tools dedicated to the conceptual design stages.

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Intelligent dexterity for secure networked infrastructure and applications (IDSNIA), Aalto Univ, Aalto University, Aalto Univ Finland, Dept Engn Design & Prod, Sch Engn
Contributors: Bernard, A., Coatanea, E., Christophe, F., Laroche, F.
Number of pages: 7
Pages: 3-9
Publication date: 2014
Peer-reviewed: Yes

Publication information

Journal: Procedia CIRP
Volume: 21
ISSN (Print): 2212-8271
Ratings: 
  • Scopus rating (2014): SJR 0.755 SNIP 1.4
Original language: English
Source: Mendeley
Source ID: c917d102-f71c-324d-bf73-70ffe40d606b

Research output: Contribution to journalArticleScientificpeer-review

Development of chip-surface stimulus electrode array for fully-implantable subretinal prosthesis chip

In this study, we have developed a chip-surface stimulus electrode array for fully-implantable subretinal prosthesis chip. To realize visual restoration with high resolution, stimulus electrodes should be miniaturized and arrayed with high density. When we miniaturize them, however, their electrochemical impedances become higher and their amount of charge injection become smaller. Additionally, as the number of electrodes increases, it becomes difficult to make electrical connection to each pixel of the retinal prosthesis chip and each electrode by electrical wiring. To overcome these problems, we have developed the stimulus electrodes that have low electrochemical impedances and large charge injection capacities, and established a fabrication process of chip-surface stimulus electrode array. We fabricated the stimulus electrodes made of extremely porous platinum which had large-surface-area compared with conventional Pt. We also fabricated the chip-surface stimulus electrodes array on the subretinal prosthesis chip which surface was rough and covered with insulator film.

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Department of Electronics and Communications Engineering, Research group: Biomaterials and Tissue Engineering Group, BioMediTech, Integrated Technologies for Tissue Engineering Research (ITTE), International Graduate School in Biomedical Engineering and Medical Physics (Ministry of Education in Finland), Graduate School of Engineering, Tohoku University
Contributors: Sasaki, Y., Suzuki, T., Iwagami, T., Tani, T., Naganuma, H., Kino, H., Hyttinen, J., Kellomäki, M., Tanaka, T.
Pages: O-253-O-254
Publication date: 17 Aug 2014
Peer-reviewed: Yes

Publication information

Journal: Transactions of Japanese Society for Medical and Biological Engineering
Volume: 52
ISSN (Print): 1347-443X
Ratings: 
  • Scopus rating (2014): CiteScore 0.01 SJR 0.127 SNIP 0.038
Original language: English
ASJC Scopus subject areas: Biomedical Engineering
Keywords: Electrode, Extremely porous platinum, Retinal prosthesis
Source: Scopus
Source ID: 84939439184

Research output: Contribution to journalArticleScientificpeer-review

Development of Si neural probe module with adjustable gain amplifier for neuronal signal recording

In recent years, lots of research on biomedical technologies directly using bio-signals such as BMI (Brain Machine Interface) have been performed intensively. Among bio-signals, ECoG (Electrocorticogram), LFP (Local Field Potential), and AP (Action Potential) are usually recorded especially for diagnosis, treatment, and prevention of brain diseases. These bio-signals have different amplitudes and frequency bandwidths, and the signal intensities vary accordingly with recording electrode conditions and individual variation. Therefore, a multiple bio-signals recording system having adjustable gain and bandwidth is strongly required. In this study, we designed the adjustable gain amplifier appropriate for the system, and fabricated the module composed of the amplifier and a Si neural probe for the multiple bio-signal recording in the deep brain. Additionally, we verified fundamental functions of the module by in vitro experiments.

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Department of Electronics and Communications Engineering, Research group: Biomaterials and Tissue Engineering Group, Research group: Computational Biophysics and Imaging Group, BioMediTech, Integrated Technologies for Tissue Engineering Research (ITTE), Graduate School of Engineering, Electrical and Electronics Engineering Department, Department of Bioengineering and Robotics, Tohoku University, Nagasaki Institute of Applied Science
Contributors: Tani, T., Naganuma, H., Harashima, T., Iwagami, T., Kino, H., Kiyoyama, K., Kellomäki, M., Hyttinen, J., Tanaka, T.
Pages: O-377-O-378
Publication date: 17 Aug 2014
Peer-reviewed: Yes

Publication information

Journal: Transactions of Japanese Society for Medical and Biological Engineering
Volume: 52
ISSN (Print): 1347-443X
Ratings: 
  • Scopus rating (2014): CiteScore 0.01 SJR 0.127 SNIP 0.038
Original language: English
ASJC Scopus subject areas: Biomedical Engineering
Keywords: Adjustable gain amplifier, Multiple bio-signal recording, Si neural probe
Source: Scopus
Source ID: 84939449061

Research output: Contribution to journalArticleScientificpeer-review

Diffusion of innovation: Case of co-design of cabins in mobile work machine industry

This paper describes the development of using virtual reality for work content in one application area over a decade. Virtual reality technology has developed rapidly; from walk-in CAVE-like virtual environments to head-mounted displays within a decade. In this paper, the development is studied through the lens of diffusion of innovation theory, which focuses not only on innovation itself, but also on the social system. The development of virtual technology is studied by one case, which is cabin design in the mobile work machine industry. This design process has been especially suitable for using virtual reality technology.

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Automation Technology and Mechanical Engineering, Tampere University
Contributors: Ellman, A., Tiainen, T.
Publication date: 1 Jun 2019
Peer-reviewed: Yes

Publication information

Journal: Computers
Volume: 8
Issue number: 2
Article number: 39
ISSN (Print): 2073-431X
Original language: English
ASJC Scopus subject areas: Human-Computer Interaction, Computer Networks and Communications
Keywords: Cabin design, Diffusion of innovation, Virtual reality
Electronic versions: 
Source: Scopus
Source ID: 85069801135

Research output: Contribution to journalArticleScientificpeer-review

Distributed power allocation over indoor multi-pico stations

A low-complexity distributed power allocation algorithm is proposed to reduce the interference and improve the transmitting rate of edge users. Different scenarios are considered and user experience of indoor communication is promoted. The simulation results prove the effectiveness of our algorithm. The proposed power control scheme ensures that more users can achieve their required rate and the fairness of different users is improved. Besides, more than 50% energy can be saved without loss in outage ability, and energy efficiency is also promoted. In addition, the proposed algorithm can be extended to scenarios that the required rates of pico stations can be changed periodically.

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Department of Electronics and Communications Engineering, Research group: Wireless Communications and Positioning, Beijing Institute of Petrochemical Technology, School of Information and Electronics, Beijing Institute of Technology
Contributors: Fei, Z. S., Gao, Q., Fu, Y., Isotalo, T., Niemelä, J.
Number of pages: 6
Pages: 227-232
Publication date: 1 Jun 2015
Peer-reviewed: Yes

Publication information

Journal: Journal of the Beijing Institute of Technology
Volume: 24
Issue number: 2
ISSN (Print): 1004-0579
Ratings: 
  • Scopus rating (2015): CiteScore 0.1 SJR 0.153 SNIP 0.163
Original language: English
ASJC Scopus subject areas: Engineering(all)
Keywords: Distributed power allocation, Indoor communication, Multi-pico stations
Source: Scopus
Source ID: 84940670650

Research output: Contribution to journalArticleScientificpeer-review

DroneRF dataset: A dataset of drones for RF-based detection, classification and identification

Modern technology has pushed us into the information age, making it easier to generate and record vast quantities of new data. Datasets can help in analyzing the situation to give a better understanding, and more importantly, decision making. Consequently, datasets, and uses to which they can be put, have become increasingly valuable commodities. This article describes the DroneRF dataset: a radio frequency (RF) based dataset of drones functioning in different modes, including off, on and connected, hovering, flying, and video recording. The dataset contains recordings of RF activities, composed of 227 recorded segments collected from 3 different drones, as well as recordings of background RF activities with no drones. The data has been collected by RF receivers that intercepts the drone's communications with the flight control module. The receivers are connected to two laptops, via PCIe cables, that runs a program responsible for fetching, processing and storing the sensed RF data in a database. An example of how this dataset can be interpreted and used can be found in the related research article “RF-based drone detection and identification using deep learning approaches: an initiative towards a large open source drone database” (Al-Sa'd et al., 2019).

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Computing Sciences, Qatar University
Contributors: Allahham, M. S., Al-Sa'd, M. F., Al-Ali, A., Mohamed, A., Khattab, T., Erbad, A.
Publication date: 1 Oct 2019
Peer-reviewed: Yes

Publication information

Journal: Data in Brief
Volume: 26
Article number: 104313
ISSN (Print): 2352-3409
Original language: English
ASJC Scopus subject areas: General
Keywords: Anti-drone systems, Classification, Drone identification, UAV detection
Source: Scopus
Source ID: 85071552598

Research output: Contribution to journalArticleScientificpeer-review

Effect of elevated nitrate and sulfate concentrations on selenate removal by mesophilic anaerobic granular sludge bed reactors

Simultaneous removal of selenate (SeO42-), nitrate (NO3-) and sulfate (SO42-), typically present in Se-contaminated wastewaters, by Eerbeek anaerobic granular sludge, was investigated in batch and continuous bioreactor experiments. Batch experiments showed that SeO42- removal was enhanced to 91% in simulated wastewater with SeO42- + NO3- + SO42- (1 : 40 : 100 SeO42- : NO3- : SO42- molar ratios) compared to simulated wastewater with SeO42- alone (67%). SeO42- removal was severely impacted by high concentrations of SO42- (SeO42- : SO42- > 1 : 300). Removal of SeO42-, NO3- and SO42- at a 1 : 40 : 100 ratio was studied in a 2 L lab-scale upflow anaerobic sludge blanket (UASB) reactor operated at 20 [degree]C, a 24 h hydraulic retention time and a 2 g COD L-1 day-1 organic loading rate using lactate as the electron donor. The removal efficiencies were stabilized at 100, 30 and 80% for NO3-, SO42- and total Se, respectively, during 92 days of UASB operation. The total Se removal efficiencies dropped to 47% or even to a negative value when, respectively, SO42- and NO3- were sequentially excluded from the influent. Speciation of Se, particularly the microbial production of colloidal Se0 levels, was influenced by both SO42- and NO3-. The results presented here demonstrate that UASB reactors are capable of removing SeO42- in the presence of millimolar concentrations of NO3- and SO42- typically found in Se-contaminated wastewaters.

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Chemistry and Bioengineering, UNESCO-IHE Institute for Water Education
Contributors: Tan, L. C., Nancharaiah, Y. V., van Hullebusch, E. D., Lens, P. N. L.
Pages: 303-314
Publication date: 2018
Peer-reviewed: Yes
Early online date: 5 Dec 2017

Publication information

Journal: Environmental Science: Water Research & Technology
Volume: 4
Issue number: 2
ISSN (Print): 2053-1400
Ratings: 
  • Scopus rating (2018): CiteScore 4.02 SJR 1.104 SNIP 1.081
Original language: English
Source: Bibtex
Source ID: urn:83b997c5e222c3328f8a2e876e3d3da8

Research output: Contribution to journalArticleScientificpeer-review

Effect of Laser Power on Yield of TiO2 Nanoparticles Synthesized by Pulsed Laser Ablation in Water

In this study, the pulsed laser ablation in liquids (PLAL) technique was used on titanium in deionized water at different laser powers to understand its effect on the synthesis yield of nanoparticles. A 500-ns 1062-nm fiber laser at 25 kHz was used to effect PLAL of titanium to produce nanoparticles. TEM images of the synthesized nanoparticles showed spherical particles ranging from 3 32 nm in diameter. The electron diffraction pattern and high peaks in the wide-angle x-ray scattering (WAXS) pattern indicated high crystallinity of nanoparticles. WAXS results showed nanoparticles were allotropes of titania: rutile and anatase. Synthesis yield measurements indicated an increase in yield with the increase in laser power as long as the increase in laser fluence remains proportional to the increase in laser power. However, the yield increased proportionally with the increase in laser fluence. The analysis of the chosen laser pulse duration and repetition rate showed an increase in the yield with longer pulse duration and higher repetition rate.

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Materials Science, Research group: Ceramic materials, Mechanical Engineering and Industrial Systems, Research area: Manufacturing and Automation, Research group: Surface Engineering, Research group: Materials Characterization, Research group: Ceramic materials
Contributors: Singh, A., Vihinen, J., Frankberg, E., Hyvärinen, L., Honkanen, M., Levänen, E.
Number of pages: 5
Pages: 39-43
Publication date: Mar 2017
Peer-reviewed: Yes

Publication information

Journal: Journal of Ceramic Science and Technology
Volume: 8
Issue number: 1
ISSN (Print): 2190-9385
Ratings: 
  • Scopus rating (2017): CiteScore 1.4 SJR 0.374 SNIP 0.801
Original language: English
Keywords: Nanoparticles, synthesis yield, pulsed laser ablation in liquids, WAXS, laser fluence, WAVELENGTH, GOLD
Source: WOS
Source ID: 000397702900008

Research output: Contribution to journalArticleScientificpeer-review

Effect of radiation inside square hollow section under moderate non-symmetric fire

The temperature calculation of hollow steel sections at elevated temperatures is a well-documented and standard procedure. Through this standard procedure, the temperature can be calculated by assuming a uniform gas temperature all around the section, which is called a symmetric fire in this paper. Embedding in surrounding structures or connecting to another steel member results in non-symmetric heat distribution in the member. This non-symmetricity of the surrounding temperature may cause surface-to-surface heat radiation inside the
member, thus affecting the steel section temperature distribution. This effect is considered in this paper by adopting analytical and finite element method analysis.

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Civil Engineering, Research group: Metal and Light-wight structures, Research group: Metal and Light-wight structures
Contributors: Baczkiewicz, J., Pajunen, S., Heinisuo, M.
Number of pages: 6
Pages: 25-30
Publication date: 27 Jul 2018
Peer-reviewed: Yes

Publication information

Journal: Fire Research
Volume: 2
Issue number: 1
Article number: 2:42
ISSN (Print): 2532-4748
Original language: English
Keywords: Steel member, Hollow section, Heat transfer, Radiation

Research output: Contribution to journalArticleScientificpeer-review

Effects of subsampling on characteristics of RNA‑seq data from triple‑negative breast cancer patients

Background: Data from RNA-seq experiments provide a wealth of information about the transcriptome of an organism. However, the analysis of such data is very demanding. In this study, we aimed to establish robust analysis procedures that can be used in clinical practice. Methods: We studied RNA-seq data from triple-negative breast cancer patients. Specifically, we investigated the subsampling of RNA-seq data. Results: The main results of our investigations are as follows: (1) the subsampling of RNA-seq data gave biologically realistic simulations of sequencing experiments with smaller sequencing depth but not direct scaling of count matrices; (2) the saturation of results required an average sequencing depth larger than 32 million reads and an individual sequencing depth larger than 46 million reads; and (3) for an abrogated feature selection, higher moments of the distribution of all expressed genes had a higher sensitivity for signal detection than the corresponding mean values. Conclusions: Our results reveal important characteristics of RNA-seq data that must be understood before one can apply such an approach to translational medicine.

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Department of Signal Processing, Queen's University, Belfast, Northern Ireland, University of Arkansas for Medical Sciences
Contributors: Stupnikov, A., Glazko, G. V., Emmert-Streib, F.
Publication date: 8 Sep 2015
Peer-reviewed: Yes

Publication information

Journal: Chinese Journal of Cancer
Volume: 34
Issue number: 10
ISSN (Print): 1944-446X
Ratings: 
  • Scopus rating (2015): CiteScore 2.63 SJR 1.081
Original language: English
ASJC Scopus subject areas: Oncology
Keywords: Computational genomics, High-dimensional biology, RNA-seq data, Statistical robustness, Triple-negative breast cancer
Source: Scopus
Source ID: 84944199836

Research output: Contribution to journalArticleScientificpeer-review

Electro-optic steering of random laser emission in liquid crystals

Using an external low-frequency electric field applied to dye-doped nematic liquid crystals, we demonstrate that random lasing obtained by optical pumping can be steered in an angular direction by routing an all-optical waveguide able to collect the emitted light. By varying the applied voltage from 0 to 2 V, we reduce the walk-off and sweep the random laser guided beam over 7 degrees.

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Physics, Research group: Nonlinear Optics, University of Rome Roma Tre, University “Roma Tre”
Contributors: Assanto, G., Perumbilavil, S., Piccardi, A., Kauranen, M.
Number of pages: 3
Pages: 103-105
Publication date: 2018
Peer-reviewed: Yes

Publication information

Journal: Photonics Letters of Poland
Volume: 10
Issue number: 4
ISSN (Print): 2080-2242
Ratings: 
  • Scopus rating (2018): CiteScore 0.52 SJR 0.214 SNIP 0.348
Original language: English
ASJC Scopus subject areas: Electronic, Optical and Magnetic Materials
Source: Scopus
Source ID: 85062032353

Research output: Contribution to journalArticleScientificpeer-review

Energy Retrofits in Multi-family Buildings in North-east Europe: The Impacts on Thermal Conditions

We have conducted a project to develop a common protocol for indoor environmental quality (IEQ) assessment and to assess the effects of energy retrofits on IEQ. This paper focuses on thermal comfort, which was first assessed based on 2-month continuous monitoring in 16 multi-family buildings (94 apartments) in Finland and 20 buildings (96 apartments) in Lithuania during heating season before retrofits. In addition, corresponding data after retrofits were available from three buildings (17 apartments) from Finland and seven (30 apartments) from Lithuania. Two data loggers per apartment were placed to evaluate Tw and RHw (warm area), and Tc and RHc (coldest spot). Questionnaire data regarding housing quality and health were collected from the occupants. The results before retrofits indicated high Tw (>23 ºC) for a large proportion of time in Finnish apartments, whereas opposite trend was observed in Lithuania. After retrofits, proportion of time with high Tw was higher while proportion of apartments with low RHw was lower in Finland, whereas in Lithuania, about one fourth of the apartments had higher Tw and RHw, hence fulfilling the national guidelines. The average absolute humidity was higher after retrofits in both countries, especially in Lithuania (by 15%). Occupant responses indicated improved thermal comfort. Therefore, potential effects of energy retrofits on occupants’ thermal environment and satisfaction were demonstrated, and simply adjusting indoor temperature could help to save energy. Further analysis is needed to include the effects of outdoor conditions, as well as overall IEQ to the assessment.

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Life Cycle Effectiveness of the Built Environment (LCE@BE), Research group: Concrete and Bridge Structures, Research area: Structural Engineering, Department of Civil Engineering, Research group: Building Physics, Natl Inst Hlth & Welf, Finland National Institute for Health & Welfare, Dept Hlth Protect, Kaunas Univ Technol, Kaunas University of Technology, Dept Environm Technol
Contributors: Du, L., Leivo, V., Prasauskas, T., Turunen, M., Kiviste, M., Martuzevicius, D., Haverinen-Shaughnessy, U.
Number of pages: 5
Pages: 860-864
Publication date: Nov 2015
Peer-reviewed: Yes

Publication information

Journal: Energy Procedia
Volume: 78
ISSN (Print): 1876-6102
Ratings: 
  • Scopus rating (2015): CiteScore 0.92 SJR 0.359 SNIP 0.562
Original language: English

Research output: Contribution to journalArticleScientificpeer-review

Enhanced outdoor to indoor propagation models and impact of different ray tracing approaches at higher frequencies

The main target of this article is to study the provision of indoor service (coverage) using outdoor base station at higher frequencies i.e. 10 GHz, 30 GHz and 60 GHz. In an outdoor to indoor propagation, an angular wall loss model is used in the General Building Penetration (GBP) model for estimating the additional loss at the intercept point of the building exterior wall. A novel angular wall loss model based on a separate incidence angle in azimuth and elevation plane is proposed in this paper. In the second part of this study, an Extended Building Penetration (EBP) model is proposed, and the performance of EBP model is compared with the GBP model. In EBP model, the additional fifth path known as the “Direct path” is proposed to be included in the GBP model. Based on the evaluation results, the impact of the direct path is found significant for the indoor users having the same or closed by height as that of the height of the transmitter. For the indoor users located far away from the exterior wall of building, a modified and enhanced approach of ray tracing type is proposed in this article. In the light of acquired simulation results, the impact of a modified ray tracing approach is emphasized.

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Electrical Engineering, Research group: Laboratory of Radio Network Planning, Research group: Wireless Communications and Positioning, Ericsson Research
Contributors: Sheikh, M. U., Hiltunen, K., Lempiainen, J.
Number of pages: 11
Pages: 58-68
Publication date: 2018
Peer-reviewed: Yes

Publication information

Journal: Advances in Science, Technology and Engineering Systems
Volume: 3
Issue number: 2
ISSN (Print): 2415-6698
Original language: English
ASJC Scopus subject areas: Engineering (miscellaneous), Management of Technology and Innovation, Physics and Astronomy (miscellaneous)
Keywords: Angular loss, Building penetration loss, Outdoor to indoor, Propagation, Ray tracing, Wall loss model
Source: Scopus
Source ID: 85061801748

Research output: Contribution to journalArticleScientificpeer-review

Entropy of weighted graphs with Randić weights

Shannon entropies for networks have been widely introduced. However, entropies for weighted graphs have been little investigated. Inspired by the work due to Eagle et al., we introduce the concept of graph entropy for special weighted graphs. Furthermore, we prove extremal properties by using elementary methods of classes of weighted graphs, and in particular, the one due to Bollobás and Erdös, which is also called the Randić weight. As a result, we derived statements on dendrimers that have been proven useful for applications. Finally, some open problems are presented.

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Department of Signal Processing, BioMediTech, Research Community on Data-to-Decision (D2D), Department of Computer Science & Information Systems, University of Limerick, Ireland, College of Computer and Control Engineering, Nankai University, Universität der Bundeswehr München, Department of Mechatronics and Biomedical Computer Science, UMIT, Center for Combinatorics and LPMC-TJKLC
Contributors: Chen, Z., Dehmer, M., Emmert-Streib, F., Shi, Y.
Number of pages: 14
Pages: 3710-3723
Publication date: 2015
Peer-reviewed: Yes

Publication information

Journal: Entropy
Volume: 17
Issue number: 6
ISSN (Print): 1099-4300
Ratings: 
  • Scopus rating (2015): CiteScore 1.99 SJR 0.551 SNIP 1.116
Original language: English
ASJC Scopus subject areas: Physics and Astronomy(all)
Keywords: Extremal value, Graph entropy, Randić weight, Shannon's entropy, Weighted graphs
Source: Scopus
Source ID: 84934300047

Research output: Contribution to journalArticleScientificpeer-review

Evaluation of Median Root Prior for Robust In-Beam PET Reconstruction

Dose delivery verification in proton beam radiotherapy is used to ensure the delivery of the dose to the correct location. A positron emission tomography (PET) scanner can be used to detect the secondary radiation during the treatment, so-called in-beam PET. This is a challenging application for PET due to the low counts and limited angular coverage. We propose a maximum a posteriori (MAP) reconstruction with median root prior (MRP) for the reconstruction of in-beam PET data. The proposed method was compared against MAP with total variation (TV) prior and maximum likelihood expectation maximization (MLEM), which have previously been used for this application. The effects of different ring configurations and time-of-flight information were tested with simulations of a geometrical phantom and a realistic patient treatment plan. The results indicate that both MAP methods produced sharper edges than MLEM, allowing more accurate edge localization in the reconstructed images. Even for the partial ring configurations, no elongation was observed with MAP methods. MAP-MRP successfully reduced the noise, whereas MAP-TV resulted in checkerboard artifacts. MAP-MRP was also more stable against the selection of the reconstruction parameters. In conclusion, MAP-MRP offers a simple and robust alternative for the reconstruction of in-beam PET data.

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Mathematics, Signal Processing, Research group: M2oBSI, University of Groningen
Contributors: Us, D., Brzezinski, K., Buitenhuis, T., Dendooven, P., Ruotsalainen, U.
Number of pages: 8
Pages: 490-498
Publication date: 5 Sep 2018
Peer-reviewed: Yes

Publication information

Journal: IEEE Transactions on Radiation and Plasma Medical Sciences
Volume: 2
Issue number: 5
ISSN (Print): 2469-7303
Original language: English

Research output: Contribution to journalArticleScientificpeer-review

Evolutionary multiobjective optimization for adaptive dataflow-based digital predistortion architectures

In wireless communication systems, high-power transmitters suffer from nonlinearities due to power amplifier (PA) characteristics, I/Q imbalance, and local oscillator (LO) leakage. Digital Predistortion (DPD) is an effective technique to counteract these impairments. To help maximize agility in cognitive radio systems, it is important to investigate dynamically reconfigurable DPD systems that are adaptive to changes in the employed modulation schemes and operational constraints. To help maximize effectiveness, such reconfiguration should be performed based on multidimensional operational criteria. With this motivation, we develop in this paper a novel evolutionary algorithm framework for multiobjective optimization of DPD systems. We demonstrate our framework by applying it to develop an adaptive DPD architecture, called the adaptive, dataflow-based DPD architecture (ADDA), where Pareto-optimized DPD parameters are derived subject to multidimensional constraints to support efficient predistortion across time-varying operational requirements and modulation schemes. Through extensive simulation results, we demonstrate the effectiveness of our proposed multiobjective optimization framework in deriving efficient DPD configurations for run-time adaptation.

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Pervasive Computing, Electronics and Communications Engineering, Research group: Wireless Communications and Positioning, Research area: Computer engineering, University of Oulu
Contributors: Li, L., Ghazi, A., Boutellier, J., Anttila, L., Valkama, M., Bhattacharyya, S. S.
Publication date: 23 Feb 2017
Peer-reviewed: Yes

Publication information

Journal: EAI Endorsed Transactions on Cognitive Communications
Volume: 17
Issue number: 10
Article number: e3
ISSN (Print): 2313-4534
Original language: English

Research output: Contribution to journalArticleScientificpeer-review

First-principles data set of 45,892 isolated and cation-coordinated conformers of 20 proteinogenic amino acids

We present a structural data set of the 20 proteinogenic amino acids and their amino-methylated and acetylated (capped) dipeptides. Different protonation states of the backbone (uncharged and zwitterionic) were considered for the amino acids as well as varied side chain protonation states. Furthermore, we studied amino acids and dipeptides in complex with divalent cations (Ca2+, Ba2+, Sr2+, Cd2+, Pb2+, and Hg2+). The database covers the conformational hierarchies of 280 systems in a wide relative energy range of up to 4 eV (390 kJ/mol), summing up to a total of 45,892 stationary points on the respective potential-energy surfaces. All systems were calculated on equal first-principles footing, applying density-functional theory in the generalized gradient approximation corrected for long-range van der Waals interactions. We show good agreement to available experimental data for gas-phase ion affinities. Our curated data can be utilized, for example, for a wide comparison across chemical space of the building blocks of life, for the parametrization of protein force fields, and for the calculation of reference spectra for biophysical applications.

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Department of Physics, Fritz Haber Institute of the Max Planck Society, COMP Centre of Excellence, Department of Applied Physics, Aalto University, Aalto University, Duke University
Contributors: Ropo, M., Schneider, M., Baldauf, C., Blum, V.
Publication date: 16 Feb 2016
Peer-reviewed: Yes

Publication information

Journal: Scientific Data
Volume: 3
Article number: 160009
ISSN (Print): 2052-4463
Ratings: 
  • Scopus rating (2016): CiteScore 4.8 SJR 3.261 SNIP 2.124
Original language: English
ASJC Scopus subject areas: Education, Library and Information Sciences, Computer Science Applications, Information Systems, Statistics, Probability and Uncertainty, Statistics and Probability
Source: Scopus
Source ID: 84961184519

Research output: Contribution to journalArticleScientificpeer-review

First principles prediction of the solar cell efficiency of chalcopyrite materials AgMX 2 (M=In, Al; X=S, Se, Te)

Using the spectroscopic limited maximum efficiency, and Shockley and Queisser predictor models, we compute the solar efficiency of the chalcopyrites AgMX 2 (M = In, Al; X = S, Se, Te). The results presented are based on the estimation of the electronic and optical properties obtained from first principles density functional theory as well as the many-body perturbation theory calculations. The results from this report were consistent with the experimental data.The optical bandgap was accurately estimated from the absorption spectra, obtained by solving the Bethe and Salpeter equation. Fitting the Tauc's plot on the absorption spectra, we also predicted that the materials studied have a direct allowed optical transition. The theoretical estimations of the solar cell performance showed that the efficiencies from the Shockley and Queisser model are higher than those from the spectroscopic limited maximum efficiency model. This improvement is attributed to the absorption, the recombination processes and the optical transition accounted in the calculation of the efficiency.

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Electrical Engineering, University of South Africa, University of Witwatersrand
Contributors: Dongho-Nguimdo, G. M., Igumbor, E., Zambou, S., Joubert, D. P.
Publication date: 1 Dec 2019
Peer-reviewed: Yes

Publication information

Journal: Computational Condensed Matter
Volume: 21
Article number: e00391
ISSN (Print): 2352-2143
Original language: English
ASJC Scopus subject areas: Electronic, Optical and Magnetic Materials, Materials Science (miscellaneous), Condensed Matter Physics, Materials Chemistry
Keywords: Chalcopyrites, First principles, Solar cell efficiency
Source: Scopus
Source ID: 85065198754

Research output: Contribution to journalArticleScientificpeer-review

Fully printed memristors for a self-sustainable recorder of mechanical energy

Memristors have attracted significant interest in recent years because of their role as a missing electronic component and unique functionality that has not previously existed. Since the first discoveries of the existence of memristive materials, various different fabrication processes for memristors have been presented. Here, a simple additive fabrication process is demonstrated where memristors were deposited on a polymer substrate by conventional inkjet printing. The memristor structure was printed on a 125 μ m thick polyethylene terephthalate (PET) substrate by sandwiching a thin layer of TiO x between two silver nanoparticle ink electrodes. Current–voltage ( IV ) characterization measurements were performed and they showed clear memristive behavior when voltage pulse amplitude varied between −1.5 V and 1.5 V. The corresponding resistance change is approximately between 150 Ω and 75 kΩ. In order to demonstrate the switching scheme in practical application, printed memristors and a printed voltage doubler were connected with a piezoelectric element. The element was subjected to impact-type excitation thus producing an electric charge that was able to switch the memristor between high and low resistive states. These results pave the way for an exploitation of cost-efficient, self-sufficient, all-printable memory elements for wide utilization in future electronics applications.

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Department of Electronics and Communications Engineering, Department of Automation Science and Engineering, Research area: Microsystems, Research area: Measurement Technology and Process Control
Contributors: Vilmi, P., Nelo, M., Voutilainen, J., Palosaari, J., Pörhönen, J., Tuukkanen, S., Jantunen, H., Juuti, J., Fabritius, T.
Number of pages: 8
Publication date: 19 Apr 2016
Peer-reviewed: Yes

Publication information

Journal: Flexible and Printed Electronics
Volume: 1
Issue number: 2
Article number: 025002
ISSN (Print): 2058-8585
Original language: English
Source: Bibtex
Source ID: urn:93364f0c9fc6d11e220f8d004617b3a2

Research output: Contribution to journalArticleScientificpeer-review

Heat Loss Rate of the Finnish Building Stock

This paper presents a bottom-up model for studying the heat loss rate of the building stock.The model is a step towards more complex building-stock power modeling, whose goal is topredictthe sources and the amount of demand response potential under different conditions. The heat loss rate is the fraction of thermal power needed to compensate for the heat loss via exterior walls, windows, roofs, floors and ventilation in the buildings. The heat loss rate depends on the physical characteristics of the building envelope and ventilation andon weather conditions.

We first examine the current state of power and energy modeling. We then describe the research object of this study and the calculation method. The calculation results presented in the third section are illustrated at the hourly level, sorted by the main source of the heating energy of the building. In addition to the analysis of the building stock level, the heat loss rate was calculated on a building level using some typical building information models for validation purposes. The validation indicated that the results obtained with the two methods were consistent and that the order of magnitude was reasonable. The Finnish building stock was used as a research object in the demonstration of the model. Finally, some further needs for research are discussed.

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Department of Civil Engineering, Research group: Real estate development, Research group: Capacity Development of Water and Environmental Services CADWES, Research group: Service Life Engineering of Structures
Contributors: Vihola, J., Sorri, J., Heljo, J., Kero, P.
Number of pages: 8
Pages: 601-608
Publication date: 2015
Peer-reviewed: Yes

Publication information

Journal: Procedia Economics and Finance
Volume: 21
ISSN (Print): 2212-5671
Original language: English
Source: RIS
Source ID: urn:16F0384ED693DEFF48B71B73D5740E05

Research output: Contribution to journalArticleScientificpeer-review

High efficiency dilute nitride solar cells: Simulations meet experiments

Parameter extraction procedure and simulation of dilute nitride solar cells are reported. Using PC1D simulation and fitting to experimental current-voltage and external quantum efficiency data, we retrieve the phenomenological material parameters for GaInNAs solar cells. Based on these, we have constructed a model that can explain the changes in short circuit current and open circuit voltage of n-i-p solar cells subjected to rapid thermal annealing. The model reveals that non-annealed MBE-grown GaInNAs material has an n-type doping that evolves to p-type upon rapid thermal annealing. The change of doping type and the shift of the physical location of the pn-junction were confirmed by Kelvin-probe force microscopy. The PC1D modelling was found to work well also for GaInNAs p-i-n solar cells with opposite polarity. It was also found that the GaInNAs lower doping levels in p-i-n solar cells grown at lowered As/III flux ratios were associated with increased carrier lifetimes.

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Optoelectronics Research Centre, Research group: Semiconductor Technology and Applications
Contributors: Tukiainen, A., Aho, A., Polojärvi, V., Ahorinta, R., Guina, M.
Number of pages: 20
Pages: 113-132
Publication date: 2016
Peer-reviewed: Yes

Publication information

Journal: Journal of Green Engineering
Volume: 5
Issue number: 3-4
Article number: 8
ISSN (Print): 1904-4720
Ratings: 
  • Scopus rating (2016): CiteScore 0.36 SJR 0.132 SNIP 0.294
Original language: English
ASJC Scopus subject areas: Environmental Engineering, Energy(all), Physics and Astronomy(all), Materials Science(all)
Source: Scopus
Source ID: 84983050025

Research output: Contribution to journalArticleScientificpeer-review

Human Factor in Time Management

Abstract Time is the most important resource for leaders. Resources such as personnel, capital or facilities are crucial for leaders, but time is imperative. People's productivity, and hence organizations performance are heavily related to their time usage. Therefore, especially leaders should have conscious awareness towards their time personality. Time, however, is not an easy concept to handle for leader or even understand it. It has many different faces towards people. The challenge is that chronological time, where the business and management are done, is not nearly suitable when human relations and leadership are handled. Individuals experiences towards time differentiates to one another and different situations are constantly changing the experience of individual. Therefore, quite often, leaders recognize that it is hard to have schedules to match or plans to actualize within an agreed time. Some people fit more easily to same time reality with leader than others. Consequently, it is crucial for leaders also to understand how organization's members experience their time and how conscious their awareness is. Before it is possible to manage one's own time usage, personal time orientation, biases towards time, situation has to be understood consciously. This article handles research regarding time ontology in leadership and management environment and regarding peoples conscious awareness towards time and differences in their time reality. Research is done by developing and utilizing application called Chronos & Kairos which main purpose is to give possibility for thorough research for peoples’ differences when experiencing time. Time ontology for leadership and management environment is presented as well as research and results of differences of people's time reality. Article argues that people's conscious awareness towards time differentiates and this issues should be recognized especially in leadership positions. Future research aspects and recommendations are also issued in this paper.

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Pori Department
Contributors: Reunanen, T.
Number of pages: 8
Pages: 709-716
Publication date: 2015
Peer-reviewed: Yes

Publication information

Journal: Procedia Manufacturing
Volume: 3
ISSN (Print): 2351-9789
Original language: English
Keywords: Time, Management, Human factor, Leadership, Situationality

Bibliographical note

INT=pla,"Reunanen, Tero"

Source: RIS
Source ID: urn:6D4C24C5CCDB54B2E73B8973CD08FBFE

Research output: Contribution to journalArticleScientificpeer-review

Image-based characterization of the pulp flows

Material flow characterization is important in the process industries and its further automation. In this study, close-to-laminar pulp suspension flows are analyzed based on double-exposure images captured in laboratory conditions. The correlation-based methods including autocorrelation and the particle image pattern technique were studied. During the experiments, synthetic and real test data with manual ground truth were used. The particle image pattern matching method showed better performance achieving the accuracy of 90.0% for the real data set with linear motion of the suspension and 79.2% for the data set with flow distortions.

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Department of Signal Processing, Lappeenranta University of Technology, Machine Vision and Pattern Recognition Laboratory, Laboratory of Biosystem Dynamics, Univ of Oulu, Monash University Malaysia
Contributors: Sorokin, M., Strokina, N., Eerola, T., Lensu, L., Karttunen, K., Kalviainen, H.
Number of pages: 8
Pages: 630-637
Publication date: 1 Jul 2016
Peer-reviewed: Yes

Publication information

Journal: Pattern Recognition and Image Analysis
Volume: 26
Issue number: 3
ISSN (Print): 1054-6618
Ratings: 
  • Scopus rating (2016): CiteScore 0.55 SJR 0.255 SNIP 0.872
Original language: English
ASJC Scopus subject areas: Computer Graphics and Computer-Aided Design, Computer Vision and Pattern Recognition
Keywords: double-exposure, particle image velocimetry, pulp flow estimation
Source: Scopus
Source ID: 84984924424

Research output: Contribution to journalArticleScientificpeer-review

Importance and challenges of sharing experiences among an international and interdisciplinary group of doctoral students

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Department of Chemistry and Bioengineering, Research group: Industrial Bioengineering and Applied Organic Chemistry
Contributors: Kurki, V., Sidaraviciute, R., Sörensen, J., Kibocha, S. N., Retike, I., Ikobe, G., Tichonovas, M., Elijosiute, E., Rajala, R.
Number of pages: 7
Pages: 45-51
Publication date: 2015
Peer-reviewed: Yes

Publication information

Journal: Ympäristöhistoria: Finnish Journal of Environmental History
Issue number: 1/2015
ISSN (Print): 1799-6953
Original language: English

Bibliographical note

EXT="Kibocha, Samuel Ngari"
EXT="Rajala, Riikka"

Research output: Contribution to journalArticleScientificpeer-review

Influence of environmental conditions on EMF levels in a span of overhead transmission lines

The paper is devoted to the investigation of electromagnetic field distribution in the vicinity of overhead transmission lines under different environmental conditions, taking into account the wire sag curve in a span. A wire state equation is utilized, which allows one to calculate stresses in the wire and sags based on the known stresses and temperatures in the initial state. The results of the electric and magnetic field distribution on sample 330 kV and 110 kV transmission lines are presented. We show that the highest electromagnetic field levels are associated with the most severe environmental conditions, resulting in the highest sag.

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Department of Electronics and Communications Engineering, Research group: Environmental Health, LLC Soyuzenergoproekt
Contributors: Okun, O., Kravchenko, Y., Korpinen, L.
Number of pages: 9
Pages: 163-171
Publication date: 2016
Peer-reviewed: Yes

Publication information

Journal: Progress in Electromagnetics Research C
Volume: 63
ISSN (Print): 1937-8718
Ratings: 
  • Scopus rating (2016): CiteScore 0.83 SJR 0.221 SNIP 0.597
Original language: English
ASJC Scopus subject areas: Electronic, Optical and Magnetic Materials
Source: Scopus
Source ID: 84971219955

Research output: Contribution to journalArticleScientificpeer-review

Influence of the rotor eccentricity on the torque of a cage induction machine

The non-uniform air gap in an electrical machine caused by rotor eccentricity creates an asymmetrical flux-density distribution in the air gap. This can affect the nominal torque produced by the machine. Eccentricity also produces forces that act on the rotor which may also have an effect on the torque. Thus, it is important to know how the torque of the machine behaves. In this paper, the torque of a cage induction machine is studied when the machine has dynamic eccentricity. The study is performed using the finite element method and a magnetic vector potential formulation. The torque is calculated by the method of energy balance. The harmonic components of the torque are also analyzed. The results show that the machine under eccentricity does not exhibit the same torque as a normal healthy machine. The harmonic components around the first principal slot harmonic is most affected.

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Electrical Energy Engineering, Research group: Electromechanics, Research area: Power engineering, Aalto University
Contributors: Silwal, B., Rasilo, P., Belahcen, A., Arkkio, A.
Pages: 383-396
Publication date: Jun 2017
Peer-reviewed: Yes

Publication information

Journal: Archives of Electrical Engineering
Volume: 66
Issue number: 2
ISSN (Print): 2300-2506
Ratings: 
  • Scopus rating (2017): CiteScore 0.86 SJR 0.233 SNIP 0.65
Original language: English

Research output: Contribution to journalArticleScientificpeer-review

Inkjet printed metallic micropillars for bare die flip-chip bonding

Inkjet printed metal micropillars have been developed to help meet the demands for novel and highly adaptable microelectronics fabrication processes. The digitally printed silver pillar arrays in this study have been utilized in place of wafer-level solder bump processes or chip-level wire-bonded stud bumps. These three-dimensional silver pillars were printed with a drop-on-demand piezoelectric inkjet printer utilizing silver nanoparticle ink. The inkjet printed micropillars were found to have 22 μ m diameters and a height equivalent to approximately 3 μ m per droplet. In our study, we chose pillars for further use as stud bumps with 8, 10, 12 and 14 droplets, with heights of approximately 20.9 μ m, 25.9 μ m, 33.3 μ m and 35.9 μ m respectively. After printing on the bare dies the bumps were subsequently used to increase the contact reliability of flip-chip bonded samples. It was found that the bumped chips dramatically improved the reliability of the I/O connection as compared to unbumped samples. In fact nearly 88% of the bumped pads had a resistance less than 2.5 Ω/bump (no noticeable variation between bump heights) as compared to 17% for the unbumped bare dies. This study clearly demonstrates the fabrication of inkjet printed silver micropillars for use in uniform stud bump arrays. Furthermore, the feasibility of incorporating inkjet printed silver stud bumps for use in flip-chip fabrication methods was demonstrated.

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Electronics and Communications Engineering, Research group: Laboratory for Future Electronics
Contributors: Khorramdel, B., Kraft, T. M., Mäntysalo, M.
Pages: 045005
Publication date: 26 Oct 2017
Peer-reviewed: Yes

Publication information

Journal: Flexible and Printed Electronics
Volume: 2
Issue number: 4
ISSN (Print): 2058-8585
Ratings: 
  • Scopus rating (2017): CiteScore 2.68 SJR 0.779 SNIP 1.163
Original language: English
Source: Bibtex
Source ID: urn:8f4049c2ab7f16fafb13e340ca8b6ef9

Research output: Contribution to journalArticleScientificpeer-review

In vitro characterization of arylhydrazones of active methylene derivatives

Arylhydrazones of active methylene compounds (AHAMCs) are potent chemotherapy agents for the cancer treatment. AHAMCs enhance the apoptotic cell death and antiproliferation properties in cancer cells. In this study, a series of AHAMCs, 13 compounds, was assayed for cytotoxicity, apoptosis, externalization of phosphatidylserine, heterogeneity and cellular calcium level changes. The in vitro cytotoxicity study against HEK293T cells suggests that AHAMCs have significant cytotoxic effect over the concentrations. Top 5 compounds, 5-(2-(2-hydroxyphenyl) hydrazono)pyrimidine-2,4,6(1H,3H,5H)-trione (5), 4-hydroxy-5-(2-(2,4,6-trioxo-tetrahydro-pyrimidin-5(6H) ylidene)hydrazinyl)benzene-1,3-disulfonic acid (6), 5-chloro-3-(2-(4,4-dimethyl-2,6-dioxocyclohexylidene)hydrazinyl)-2-hydroxybenzenesulfonic acid (8), 5-(2-(4,4-dimethyl-2,6-dioxocyclohexylidene)hydrazinyl)-4-hydroxybenzene-1,3-disulfonic acid (9) and 2-(2-sulfophenylhydrazo)malononitrile (10) were chosen for the pharmacodynamics study. Among these, compound 5 exhibited the better cytotoxic effect with the IC50 of 50.86 ± 2.5 mM. DNA cleavage study revealed that 5 induces cell death through apoptosis and shows more effects after 24 and/or 48 h. Independent validation of apoptosis by following the externalization of phosphatidylserine using Annexin-V is also in agreement with the potential activity of 5. Single cell image analysis of Annexin-V bound cells confirms the presence of mixture of early, mid and late apoptotic cells in the population of the cells treated with 5 and a decreased trend in cell-to-cell variation over the phase was also identified. Additionally, intracellular calcium level measurements identified the Ca2+ up-regulation in compound treated cells. A brief inspection of the effect of the compound 5 against multiple human brain astrocytoma cells showed a better cell growth inhibitory effect at micro molar level. These systematic studies provide insights in the development of novel AHAMACs compounds as potential cell growth inhibitors for cancer treatment.

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Faculty of Biomedical Sciences and Engineering, Research group: Computational Systems Biology, Peoples’ Friendship University of Russia, Baku State University, Centro de Quimica Estrutural at Instituto Superior Tecnico
Contributors: Palanivel, S., Zhurina, A., Doan, P., Chandraseelan, J. G., Khandelwal, V. K. M., Zubkov, F. I., Mahmudov, K. T., Pombeiro, A. J., Yli-Harja, O., Kandhavelu, M.
Pages: 430-436
Publication date: 2018
Peer-reviewed: Yes

Publication information

Journal: Saudi Pharmaceutical Journal
Volume: 26
Issue number: 3
ISSN (Print): 1319-0164
Ratings: 
  • Scopus rating (2018): CiteScore 3.48 SJR 0.67 SNIP 1.925
Original language: English
ASJC Scopus subject areas: Pharmacology, Pharmaceutical Science
Keywords: Apoptosis, Arylhydrazones of active methylene compounds, Chemotherapy, Cytotoxic effect, Glioma, Immortal cells, Single cell analysis
Electronic versions: 
Source: Scopus
Source ID: 85039901326

Research output: Contribution to journalArticleScientificpeer-review

Kactus2: A graphical EDA tool built on the IP-XACT standard

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Pervasive Computing, Research area: Computer engineering, Research area: Computer engineering
Contributors: Virtanen, J., Kamppi, A., Pekkarinen, E., Määttä, J., Järvinen, J., Matilainen, L. J., Teuho, M., Hämäläinen, T.
Number of pages: 1
Pages: 1
Publication date: 2 May 2017
Peer-reviewed: Yes

Publication information

Journal: The Journal of Open Source Software
Volume: 2
Issue number: 13
ISSN (Print): 2475-9066
Original language: English
Keywords: IP-XACT, EDA, reuse, mpsoc, design, system-on-chip, Hardware
Electronic versions: 

Bibliographical note

INT=tie,"Järvinen, Juho"

Research output: Contribution to journalArticleScientificpeer-review

Kehittämistutkimus: vuorovaikutteisten Matlab-opetusohjelmien vaikutus minäpystyvyyteen ja oppimistuloksiin yliopistomatematiikassa

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Mathematics, Research group: Computer Science and Applied Logics, Research group: Positioning
Contributors: Kaarakka, T. E., Ali-Löytty, S., Huhtanen, M.
Number of pages: 11
Pages: 67-77
Publication date: 2018
Peer-reviewed: Yes

Publication information

Journal: FMSERA Journal
Volume: 2
Issue number: 1
ISSN (Print): 2489-4583
Original language: Finnish

Research output: Contribution to journalArticleScientificpeer-review

Knowledge Management Practices in Large Companies

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Department of Information Management and Logistics, Research group: Novi, University of Vaasa
Contributors: Väyrynen, H., Helander, N., Kukko, M.
Number of pages: 17
Pages: 56-72
Publication date: 2014
Peer-reviewed: Yes
Early online date: 2014

Publication information

Journal: The Macrotheme Review
Volume: 3
Issue number: 9
Article number: 3(9)
ISSN (Print): 1848-4735
Original language: English
Keywords: Knowledge Management, practices, survey, large companies

Bibliographical note

Versio ok 20.4.2016 /KK
EXT="Helander, Nina"

Research output: Contribution to journalArticleScientificpeer-review

Kohti tasapuolisempaa tutkimuksen arviointia: Pääkirjoitus

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Department of Civil Engineering
Contributors: Katko, T. S.
Number of pages: 2
Pages: 4-5
Publication date: 2015
Peer-reviewed: Yes

Publication information

Journal: Ympäristöhistoria: Finnish Journal of Environmental History
Volume: 5
Issue number: 1
ISSN (Print): 1799-6953
Original language: Finnish

Research output: Contribution to journalArticleScientificpeer-review

Lean-tuotanto ja sen johtaminen: onnistuminen, haasteet ja soveltuminen Suomen yrityksiin ja muihin organisaatioihin

The so-called Lean development methods are today commonly used in many types of workplaces. Many good success stories are reported but Lean-projects and the tools used in them do not always bring the desired results. The central idea in Lean thinking is the distinction of two types of efficiencies; resource efficiency and flow efficiency. Lean production systems aim at high flow efficiency but achieving it requires high resource flexibility and understanding of the uncertainty inherent in the production system. Lean-management is often related to certain methods and techniques, but they do not alone bring improvement without a holistic managerial philosophy that supports improvement on several levels of the organization’s activities. Successful application of Lean management implies strategic choices and long-term commitment to organizational learning and development. The popularity of Lean management in Finnish organizations indicates that there is generally room for improvement in the organizations’ operational activities. Lean management provides a structured model for development. It can bring successful results if implemented holistically and with a long-term commitment.

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Department of Industrial Management, Research group: Center for Research on Operations Projects and Services
Contributors: Heikkilä, J., Martinsuo, M.
Number of pages: 7
Pages: 18-24
Publication date: 2015
Peer-reviewed: Yes

Publication information

Journal: Työpoliittinen aikakauskirja
Issue number: 3
ISSN (Print): 0787-510X
Original language: Finnish

Research output: Contribution to journalArticleScientificpeer-review

Linear and nonlinear light beam propagation in chiral nematic liquid crystal waveguides

We employ a thick layer of chiral nematic liquid crystals to demonstrate the evolution of a one-dimensional (1D) higher-order guided mode into a beam self-confined in both transverse dimensions at various wavelengths. We also report the experimental observation of higher-order modes guided by soliton-induced waveguides in chiral nematic liquid crystals.

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Department of Physics, Politechnika Warszawska, University of Warsaw, Aerosol Physics Laboratory, Nonlinear Optics and OptoElectronics Lab, University “Roma Tre”
Contributors: Laudyn, U. A., Kwaśny, M., Jung, P. S., Trippenbach, M., Assanto, G., Karpierz, M. A.
Number of pages: 3
Pages: 11-13
Publication date: 2016
Peer-reviewed: Yes

Publication information

Journal: Photonics Letters of Poland
Volume: 8
Issue number: 1
ISSN (Print): 2080-2242
Ratings: 
  • Scopus rating (2016): CiteScore 0.37 SJR 0.197 SNIP 0.272
Original language: English
ASJC Scopus subject areas: Electronic, Optical and Magnetic Materials
Source: Scopus
Source ID: 84962158419

Research output: Contribution to journalArticleScientificpeer-review

LTCC-Based Multi-Electrode Arrays for 3D in Vitro Cell Cultures

Current technologies to monitor neuronal cultures in vitro are based on 2-dimensional (2D) multi-electrode arrays and cell cultures. The complexity of actual high-level neurobiological systems requires 3-dimensional (3D) cultures and 3D electrode arrays to improve our understanding of such systems. The realization calls for smart multilayer and packaging technology. Our approach uses low-temperature cofired ceramics (LTCC) for the design of a 3-dimensional multi-electrode array (3D MEA). An LTCC multilayer board with gold electrodes forms the basis of the system. The layout of the 3D MEA is designed to fit into widely used measurement adapters for 2D signal recordings, enabling data processing identical to that of established chips. Design and manufacturing of the new 3D device as a basic tool for the investigation of 3D cell cultures are described. Features of thick-film gold electrodes are characterized by means of microscopic and spectroscopic tools complemented with complex impedance measurements. Possible biological applications for in vitro electrophysiological measurements were evaluated based on cell cultures of primary neurons, seeded directly to the chip surface. It was shown that activity can be measured over six months.

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Department of Electronics and Communications Engineering, Research group: Computational Biophysics and Imaging Group, BioMediTech, Integrated Technologies for Tissue Engineering Research (ITTE), TU Ilmenau, Technische Universitat Ilmenau, Inst Mikro & Nanotechnologien MacroNano, ETH, Swiss Federal Institute of Technology Zurich, Inst Biomed Engn, Lab Biosensors & Bioelect
Contributors: Bartsch, H., Himmerlich, M., Fischer, M., Demko, L., Hyttinen, J., Schober, A.
Number of pages: 10
Pages: 315-324
Publication date: Dec 2015
Peer-reviewed: Yes

Publication information

Journal: Journal of Ceramic Science and Technology
Volume: 6
Issue number: 4
ISSN (Print): 2190-9385
Ratings: 
  • Scopus rating (2015): CiteScore 0.53 SJR 0.237 SNIP 0.434
Original language: English
Keywords: Low-temperature cofired ceramics (LTCC), three-dimensional hybrid multi-electrode array (3D MEA), in vitro cell culture, thick-film gold electrode, primary neuron culture, GROWTH
Source: WOS
Source ID: 000367422100010

Research output: Contribution to journalArticleScientificpeer-review

Management and Planning Under Complexities of Metro Construction

Nowadays, the majority of construction projects can be considered as complex and ambiguous endeavours. Each kind ofconstruction project has its own characteristics and complexities whereas then specific management approaches and solutions are needed. Regarding the rapid development of cities, underground constructions at urban regions, such as metro construction, have been largely used for extending daily human life into underground spaces. Therefore, the recognition of the complex elements of a metro construction can play a significant role in its management and planning. The aim of this study is to investigate these complexities in subway construction. This may develop the possibility of high predictability for these challenges. As metro projects are also urban underground projects, both internal and external issues are studiedand their impacts on project management are discussed. It is concluded that exceptional differences in the managing and planning of these constructions isthatcombinedinternal and external complexities are carried out simultaneously.

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Department of Civil Engineering
Contributors: Khosravi, M., Kähkönen, K.
Number of pages: 7
Pages: 415-421
Publication date: 2015
Peer-reviewed: Yes

Publication information

Journal: Procedia Economics and Finance
Volume: 21
ISSN (Print): 2212-5671
Original language: English
Keywords: Complexities, construction management, construction planning, metro construction, underground construction.

Bibliographical note

EXT=" Khosravi, Mahdi"

Source: RIS
Source ID: urn:CC947509283DD701C463455CFB0539A5

Research output: Contribution to journalArticleScientificpeer-review

Manipulating Superparamagnetic Microparticles with an Electromagnetic Needle

Selective, precise, and high-throughput manipulation of individual superparamagnetic microparticles has profound applications in performing location-tailored in vitro biomedical studies. The current techniques for manipulation of microparticles allow only a single particle in the manipulation workspace, or simultaneous transportation of multiple microparticles in batches. In this work, a method based on a robotized electromagnetic needle for manipulation of individual superparamagnetic microparticles within a microparticle population is introduced. By automatically controlling the highly localized magnetic field of the needle, a single microparticle is selectively picked when its neighboring particle is few micrometers away. Supported by the nanometer resolution of the robotic positioner, particles are placed at sub-micrometer precision. This manipulation technique allows the creating of arbitrary patterns, sorting of microparticles based on size and morphology, and transporting of individual microparticles in 3D space. Therefore, this approach has the potential to enable more deterministic and quantitative microanalysis and microsynthesis using superparamagnetic microparticles.

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Faculty of Biomedical Sciences and Engineering, Research group: Micro and Nanosystems Research Group, Research group: Bioinspired Materials and Robotics (BMR)
Contributors: Cenev, Z., Zhang, H., Sariola, V., Rahikkala, A., Liu, D., Santos, H. A., Zhou, Q.
Publication date: 2017
Peer-reviewed: Yes

Publication information

Journal: Advanced Materials Technologies
Volume: 3
Issue number: 1
Article number: 1700177
ISSN (Print): 2365-709X
Ratings: 
  • Scopus rating (2017): CiteScore 3.85 SJR 1.241 SNIP 0.99
Original language: English

Research output: Contribution to journalArticleScientificpeer-review

Microrobotic system for multi-rate measurement of bio-based fibres Z-directional bond strength

The core content of this study is micro-testing of microscale objects - an emerging application area for microrobotics - where microrobotics has been used in paper industry for measuring properties at the single fibre level. Pulp and paper scientists are interested to have experimental data of single fibre-fibre bond strength distribution of paper/board products in different loading modes and rates. Meeting this demand is quite challenging since the system should be able to measure the bond strength i) in the individual fibre level, ii) in different loading modes, and iii) in different loading rates. The current methods of measurement do not satisfy all these three requirements. Among the four different loading modes, the Z-directional behaviour of paper/board products is a matter of high significance for papermaking and paper converting companies. The Z-directional properties influence compressive properties, and accordingly the performance of structural paper/board products. According to the literature, there is not any reported method to facilitate the measurement of Z-directional strength at the single fibre level in different loading rates. This paper reports an in-depth study of a measurement method for experimental evaluation of Z-directional individual fibre-fibre bond strength in multiple loading rates using microrobotics and a Polyvinylidene fluoride (PVDF) film microforce sensor. The results from the measurement system are promising. In summary, the first concept for multi-rate measurement of Z-directional bond strength at the individual fibre level is developed during this work which has a high practical impact on the fibre characterization research field.

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Department of Automation Science and Engineering, Research area: Microsystems, Research area: Measurement Technology and Process Control
Contributors: Latifi, S. K., Saketi, P., Kallio, P.
Number of pages: 14
Pages: 13-26
Publication date: 24 May 2015
Peer-reviewed: Yes

Publication information

Journal: Journal of Micro-Bio Robotics
Volume: 10
Issue number: 1
Article number: 1
ISSN (Print): 2194-6418
Ratings: 
  • Scopus rating (2015): CiteScore 1 SJR 0.423 SNIP 1.004
Original language: English
ASJC Scopus subject areas: Engineering(all)
Keywords: Microrobotics , Micro-testing , Multi-rate microforce sensing, Polyvinylidene fluoride (PVDF) , Z-directional strength

Research output: Contribution to journalArticleScientificpeer-review

Modelling the stressed skin effect by using shell elements with meta-material model

It is a well-known fact that the so-called stressed skin design results in ca. 10-20 % mass and cost savings in a typical steel hall structures. The potential of this design method is however, too often disregarded due to e.g. rather complex and limited existing design rules and instructions. In this paper, a method for determination of generalized elastic parameters is proposed, so that the stressed skin can be modelled in the general finite element software using existing elements and material parameters. With the proposed method, structural designer can take advantage of the stressed skin design in the context of basic design tools as Autodesk Robot or RFEM.

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Civil Engineering, Sorvimo Optimointipalvelut Oy
Contributors: Pajunen, S., Hautala, J., Heinisuo, M.
Number of pages: 10
Pages: 20-29
Publication date: 2019
Peer-reviewed: Yes

Publication information

Journal: Magazine of Civil Engineering
Volume: 86
Issue number: 2
ISSN (Print): 2071-4726
Original language: English
ASJC Scopus subject areas: Civil and Structural Engineering, Building and Construction
Keywords: Corrugated sheet, Diaphragm, Stressed skin
Electronic versions: 

Bibliographical note

EXT="Heinisuo, M."

Source: Scopus
Source ID: 85068566348

Research output: Contribution to journalArticleScientificpeer-review

Monitoring urban air quality with a diffusion charger based electrical particle sensor

Abstract Urban air contains considerable amounts of harmful gaseous substances and aerosol particles. In this study, a recently introduced diffusion charger based PPS-M particle sensor (Pegasor Oy, Tampere, Finland) was evaluated for outdoor air quality measurements in urban environment. The PPS-M particle sensor was used in two stationary air quality measurement stations, one located in the roadside environment and the other in residential area, and in a mobile laboratory. The sampling of urban aerosol to the PPS-M sensor was performed without any pre-conditioning of aerosol. The sensor response to PM2.5 varied between the measurements, being between 7 and 30 fA/(µg/m3) depending on the aerosol source. The highest PM2.5 response was observed in the roadside study for exhaust particles while the lowest PM2.5 response was observed for large long range transported aerosol particles having relatively large mean particle size. The sensor signal was found to produce very linear response, with only minimal deviation, to the lung deposited particle surface area concentration (from 4.5 to 6 fA/(µm2/cm3)) and to the condensation sink of urban air particles (from 1.0 × 104 to 1.2 × 104 fA cm3). The sensor response to particle number concentration was defined to be 0.0044 fA/(1/cm3) in roadside environment. In this environment, the signal was found to correlate also with NO and NO2 concentrations of roadside air due to the same origin of particulate and gaseous pollutants. Similar correlation between NOx and the PPS-M signal was not observed in residential area.

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Department of Physics, Department of Signal Processing, Research area: Aerosol Physics, Urban circular bioeconomy (UrCirBio)
Contributors: Järvinen, A., Kuuluvainen, H., Niemi, J., Saari, S., Dal Maso, M., Pirjola, L., Hillamo, R., Janka, K., Keskinen, J., Rönkkö, T.
Publication date: 2015
Peer-reviewed: Yes
Early online date: 2014

Publication information

Journal: Urban Climate
Volume: 14
Issue number: 3
ISSN (Print): 2212-0955
Ratings: 
  • Scopus rating (2015): CiteScore 2.23 SJR 0.879 SNIP 1.032
Original language: English
Keywords: Particle sensor, Urban air quality, Traffic emissions, Instrument comparison

Bibliographical note

ORG=fys,0.5
ORG=sgn,0.5

Source: RIS
Source ID: urn:C09F5E550C75A3945CB60BFFC830456C

Research output: Contribution to journalArticleScientificpeer-review

Natural Gas Engine Emission Reduction by Catalysts

In order to meet stringent emission limits, after-treatment systems are increasingly utilized in natural gas engine applications. In this work, two catalyst systems were studied in order to clarify how the catalysts affect, e.g. hydrocarbons, NOx and particles present in natural gas engine exhaust. A passenger car engine modified to run with natural gas was used in a research facility with possibilities to modify the exhaust gas properties. High NOx reductions were observed when using selective catalytic reduction, although a clear decrease in the NOx reduction was recorded at higher temperatures. The relatively fresh methane oxidation catalyst was found to reach reductions greater than 50% when the exhaust temperature and the catalyst size were sufficient. Both the studied catalyst systems were found to have a significant effect on particulate emissions. The observed particle mass reduction was found to be due to a decrease in the amount of organics passing over the catalyst. However, especially at high exhaust temperatures, high nanoparticle concentrations were observed downstream of the catalysts together with higher sulphate concentrations in particles. This study contributes to understanding emissions from future natural gas engine applications with catalysts in use.

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Department of Physics, Research area: Aerosol Physics, Finnish Meteorological Institute, Helsinki, VTT Technical Research Centre of Finland, Atmospheric Composition Research, Finnish Meteorological Institute, Dinex Ecocat Oy, Dinex Ecocat Oy, Catalyst Res
Contributors: Lehtoranta, K., Murtonen, T., Vesala, H., Koponen, P., Alanen, J., Simonen, P., Rönkkö, T., Timonen, H., Saarikoski, S., Maunula, T., Kallinen, K., Korhonen, S.
Number of pages: 10
Pages: 142-152
Publication date: Jun 2017
Peer-reviewed: Yes
Early online date: 23 Dec 2016

Publication information

Journal: Emission Control Science and Technology
Volume: 3
Issue number: 2
ISSN (Print): 2199-3629
Ratings: 
  • Scopus rating (2017): CiteScore 1.98 SJR 0.731 SNIP 1.435
Original language: English

Research output: Contribution to journalArticleScientificpeer-review

NB-IoT for D2D-enhanced content uploading with social trustworthiness in 5G systems

Future fifth-generation (5G) cellular systems are set to give a strong boost to the large-scale deployment of Internet of things (IoT). In the view of a future converged 5G-IoT infrastructure, cellular IoT solutions such as narrowband IoT (NB-IoT) and device-to-device (D2D) communications are key technologies for supporting IoT scenarios and applications. However, some open issues still need careful investigation. An example is the risk of threats to privacy and security when IoT mobile services rely on D2D communications. To guarantee efficient and secure connections to IoT services involving exchange of sensitive data, reputation-based mechanisms to identify and avoid malicious devices are fast gaining ground. In order to tackle the presence of malicious nodes in the network, this paper introduces reliability and reputation notions to model the level of trust among devices engaged in an opportunistic hop-by-hop D2D-based content uploading scheme. To this end, social awareness of devices is considered as a means to enhance the identification of trustworthy nodes. A performance evaluation study shows that the negative effects due to malicious nodes can be drastically reduced by adopting the proposed solution. The performance metrics that proved to benefit from the proposed solution are data loss, energy consumption, and content uploading time.

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Electronics and Communications Engineering, Universita degli Studi di Reggio Calabria, Peoples’ Friendship University of Russia
Contributors: Militano, L., Orsino, A., Araniti, G., Iera, A.
Publication date: 8 Jul 2017
Peer-reviewed: Yes

Publication information

Journal: Future Internet
Volume: 9
Issue number: 3
Article number: 31
ISSN (Print): 1999-5903
Ratings: 
  • Scopus rating (2017): CiteScore 1.25 SJR 0.219 SNIP 0.906
Original language: English
ASJC Scopus subject areas: Computer Networks and Communications
Keywords: 5G systems, D2D communications, Internet of things, NB-IoT, Trustworthiness

Bibliographical note

INT=elt,"Orsino, Antonino"

Source: Scopus
Source ID: 85022204929

Research output: Contribution to journalArticleScientificpeer-review

Parameters Affecting the Upcycling of Waste Cotton and PES/CO Textiles

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Department of Materials Science, Research group: Fibre Materials
Contributors: Vats, S., Rissanen, M.
Number of pages: 12
Pages: 166-177
Publication date: 30 May 2016
Peer-reviewed: Yes

Publication information

Journal: Recycling
Volume: 1
Issue number: 1
ISSN (Print): 2313-4321
Original language: English

Research output: Contribution to journalArticleScientificpeer-review

Preparation and antimicrobial characterization of silver-containing packaging materials for meat

In food technology, antimicrobial packaging materials could inhibit or limit the growth of spoilage bacteria and thus improve the shelf life of packaged products. The present study provides new insights into the preparation and antimicrobial characterization of silver-containing packaging materials and their efficacy against typical meat spoilage bacteria. Antimicrobial efficacy of packaging films produced by coextrusion or liquid flame spray process was determined by bioluminescence imaging and conventional antimicrobial assay. Fresh pork sirloin was packaged in selected films and composition of meat microbiota was analyzed by 16S rRNA amplicon sequencing. Shelf life of meat was not affected by any of the silver-containing packaging films, even though meat microbiota mostly consisted of bacteria that were inhibited or retarded in vitro by nanoscale silver coating. This may be due to different release dynamics of silver ions on meat surfaces compared to the circumstances in the antimicrobial assay or interactions between silver and amino acids.

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Department of Materials Science, Research group: Paper Converting and Packaging, Department of Chemistry and Bioengineering, Engineering materials science and solutions (EMASS), Urban circular bioeconomy (UrCirBio), University of Helsinki, Department of Food Hygiene and Environmental Health
Contributors: Kuuliala, L., Pippuri, T., Hultman, J., Auvinen, S., Kolppo, K., Nieminen, T., Karp, M., Björkroth, J., Kuusipalo, J., Jääskeläinen, E.
Number of pages: 8
Pages: 53-60
Publication date: 1 Dec 2015
Peer-reviewed: Yes

Publication information

Journal: Food Packaging and Shelf Life
Volume: 6
Article number: 67
ISSN (Print): 2214-2894
Ratings: 
  • Scopus rating (2015): CiteScore 2.21 SJR 0.695 SNIP 0.947
Original language: English
ASJC Scopus subject areas: Food Science, Safety, Risk, Reliability and Quality, Biomaterials, Polymers and Plastics, Microbiology (medical)
Keywords: Active packaging, Antimicrobial film, Bioluminescence, Lactic acid bacteria, Liquid flame spray, Silver nanoparticle

Bibliographical note

ORG=mol,0.5
ORG=keb,0.5

Source: Scopus
Source ID: 84945244937

Research output: Contribution to journalArticleScientificpeer-review

Probabilistic Mapping of Human Visual Attention from Head Pose Estimation

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Automation and Hydraulic Engineering, Aalto University School of Electrical Engineering
Contributors: Veronese, A., Racca, M., Pieters, R., Kyrki, V.
Number of pages: 11
Publication date: 30 Oct 2017
Peer-reviewed: Yes

Publication information

Journal: Frontiers in Robotics and AI
Article number: 53
ISSN (Print): 2296-9144
Ratings: 
  • Scopus rating (2017): SNIP 1.448
Original language: English

Research output: Contribution to journalArticleScientificpeer-review

Projektityöskentelyn kehittäminen yläkoulun matematiikan opetuksessa

Perusopetuksen opetussuunnitelman perusteiden 2014 aikana ovat ilmiölähtöinen oppiminen ja projektiluontoinen työskentely lisääntyneet peruskouluissa merkittävästi. Tässä tutkimuksessa tarkastellaan oppilaan ja opettajan näkökulmasta lähinnä yläkoulun matematiikan opetukseen liitetyn projektityöskentelyn kehittämiskohteita sekä niihin mahdollisia kehittämisehdotuksia. Tutkimusaineistoa on kerätty kyselylomakkeilla ja havainnoinnilla LUMA Suomen Projektioppiminen-kehittämishankkeesta, StarT-projektikilpailusta ja Teknologiateollisuuden My TecH –ohjelmasta. Tutkimukseen osallistui 365 oppilasta ja 19 opettajaa. Projektityöskentelyn suurimmat haasteet voidaan luokitella oppilaan ja opettajan toimintaan, itse projektiin tai koulutoiminnan puitteisiin liittyviksi. Jokaiseen osa-alueeseen opettaja voi omalla toiminnallaan vaikuttaa.

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Mathematics, Tampereen yliopisto
Contributors: Viro, I. E., Joutsenlahti, J.
Number of pages: 10
Pages: 90-99
Publication date: 2018
Peer-reviewed: Yes

Publication information

Journal: FMSERA Journal
Volume: 2
Issue number: 1
ISSN (Print): 2489-4583
Original language: Finnish

Research output: Contribution to journalArticleScientificpeer-review

Reaction heat utilization in aluminosilicate-based ceramics synthesis and sintering

Self-propagating high-temperature synthesis (SHS) is a widely known and extensively studied highly exothermicreaction- utilizing technique for making certain advanced composites and intermetallic compounds. However, only few studies have been published about the SHS of pure aluminosilicate ceramics. In the current work, possibilities for aluminosilicate ceramic synthesis and sintering requiring less energy based on the utilization of SHS in air was studied. Kaolinite powder and exothermically reactive metallic aluminium powder were used as raw materials. Thermodynamic calculations for the possible reactions and reaction paths were performed to show the theoretical possibilities for SHS utilization. The chemical reactions, thermal expansion behaviour and formed phase- and microstructures after SHS were compared to the conventional reaction sintering of mullite. Results conclude that highly exothermic reactions above 900 °C relating mainly to aluminium oxidation can ignite the SHS reaction in air atmosphere. After initialization, the reaction proceeded in a self-sustaining manner through entire test pieces, resulting in the formation of an Al2O3 - Si phase structure. Thermodynamic calculations showed the total energy balance for mullite formation from aluminium and kaolinite mixtures as highly exothermic in nature only if sufficient oxygen is available to complete the reactions. However, future research is needed to fully utilize SHS in aluminosilicate ceramics processing.

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Materials Science, Research group: Ceramic materials, VTT Technical Research Centre of Finland
Contributors: Karhu, M., Lagerbom, J., Kivikytö-Reponen, P., Ismailov, A., Levänen, E.
Number of pages: 12
Pages: 101-112
Publication date: 1 Mar 2017
Peer-reviewed: Yes

Publication information

Journal: Journal of Ceramic Science and Technology
Volume: 8
Issue number: 1
ISSN (Print): 2190-9385
Ratings: 
  • Scopus rating (2017): CiteScore 1.4 SJR 0.374 SNIP 0.801
Original language: English
ASJC Scopus subject areas: Ceramics and Composites
Keywords: Aluminosilicate ceramics, Exothermic reactions, Self-propagating high-temperature synthesis, SHS, Sintering, Synthesis

Bibliographical note

EXT="Lagerbom, J."

Source: Scopus
Source ID: 85017026033

Research output: Contribution to journalArticleScientificpeer-review

Relational Capital for Shared Vision in Innovation Ecosystems

This paper provides a multiscopic view of the relationship profiles of businesses in three selected urban innovation ecosystems. With the Triple Helix framework, the ecosystem perspective and with shared vision for transformation initiatives, we explore relationships as structure in the metropolitan areas of Austin, TX, Minneapolis, MN, and Paris, France. Network metrics are interpreted as relationship indicators; and network visualizations reveal existing relationships and distinct patterns that structure the business ecosystems in each geographic area at the enterprise, growth and startup levels. We illustrate that relationship indicators and their visualization can be valuable resources for quantitatively and qualitatively understanding and analyzing the complexities of engagement, agility, structural cohesion, vitality, embeddedness, and linking factors in innovation ecosystems. Furthermore, these indicators highlight opportunities for the development of shared vision through interventions and network orchestration.

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Department of Mathematics, Research group: MAT Intelligent Information Systems Laboratory
Contributors: Russell, M. G., Huhtamäki, J., Still, K., Rubens, N., Basole, R. C.
Number of pages: 36
Publication date: 2015
Peer-reviewed: Yes

Publication information

Journal: Triple Helix: A Journal of University-Industry-Government Innovation and Entrepreneurship
Volume: 2
Issue number: 1
ISSN (Print): 2197-1927
Original language: English
Keywords: Ecosystem, Networks, Innovation, Business, Metropolitan, Relationships, Visualization
Source: RIS
Source ID: urn:F38A9FE4A6D713DF7D7D6341B47D22C2

Research output: Contribution to journalArticleScientificpeer-review

Resilient Asset Management and Governance Fordeteriorating Water Services Infrastructure

This paper argues that strategic asset management and a sound regulatory regime are required urgently if we want to change the current paradigm of aging and decaying water services infrastructure and expand the coverage of improved water services in the developing economies. In the OECD countries access to safe water supply and sanitation has largely been ensured through substantial investment over many decades. Yet, significant investments will still be required to rehabilitate the existing infrastructures, to bring them into conformity with more stringent environmental and health regulations, and to maintain service quality in the future. In the non-OECD countries the challenges are more daunting. Large parts of their population have no access and many suffer from unsatisfactory services. Nearly one billion people lack access to clean drinking water and 2.6 billion people lack access to improved sanitation services.Lack of sound economic regulatory frameworks and enforcement regimes, and poor asset management practices, in particular underpricing of water services is a common problem throughout the world.

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Department of Civil Engineering, Department of Chemistry and Bioengineering
Contributors: Hukka, J. J., Katko, T. S.
Number of pages: 8
Pages: 112-119
Publication date: 2015
Peer-reviewed: Yes

Publication information

Journal: Procedia Economics and Finance
Volume: 21
ISSN (Print): 2212-5671
Original language: English
Keywords: aging and deteriorating water services infrastructure, investment gap, strategic asset management, regulatory and enforcement framework, sustainability.
Source: RIS
Source ID: urn:B63C341C3AC1323B613E64632E9D1135

Research output: Contribution to journalArticleScientificpeer-review

Safety, Space and Structure Quality Requirements in Construction Scheduling

Abstract Quality assessment of a construction project schedule can be a challenging task for project stakeholders. A little research work has addressed quality of schedules though a good project schedule can be considered as of the key factors of project success. The development of a reliable and easy to perform construction schedule quality assessment procedure seems to be a challenging task. Since Schedule Health Assessment of a construction project has to be strictly related to process requirements, it is used the3 “S” rule as a starting point and framework for obtaining improved understanding of quality of construction schedules. The 3 “S” are Safety, Space and Structure, meaning that the planned process should provide a safe working environment to construction workers, sufficient space to perform construction activities and the required sequence of construction operations and project phases.The aim of the study is to implement a schedule quality assessment method that takes into account the 3“S” rule of construction process.The 3“S” requirements can be successfully integrated in a Schedule Health Assessment method, but to facilitate their implementation and control a flow-line chart is needed,thus the schedule tool becomes a new requirement for construction schedule quality control.

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Department of Civil Engineering, Research group: Digitalization in the real estate and construction sector, Research group: Capacity Development of Water and Environmental Services CADWES, Research group: Real estate development
Contributors: Bragadin, M. A., Kähkönen, K.
Number of pages: 8
Pages: 407-414
Publication date: 2015
Peer-reviewed: Yes

Publication information

Journal: Procedia Economics and Finance
Volume: 21
ISSN (Print): 2212-5671
Original language: English
Keywords: Construction management, Project Control, Project Scheduling, Quality, Safety.
Source: RIS
Source ID: urn:F0EEB88647642A7A838E1B2E16C028A8

Research output: Contribution to journalArticleScientificpeer-review

Sata vuotta vesihuoltoa Suomessa

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Civil Engineering
Contributors: Juuti, P., Katko, T. S., Rajala, R.
Number of pages: 3
Pages: 13-15
Publication date: Dec 2017
Peer-reviewed: Yes

Publication information

Journal: Vesitalous
Volume: 58
Issue number: 6
ISSN (Print): 0505-3838
Original language: Finnish

Research output: Contribution to journalArticleScientificpeer-review

Securing the flow of information in renovation projects: Sustainable synergies from buildings to the urban scale

Continuous flow of information is a paramount importance for the success of a renovation project. This has been a clear statement in several researches, clearances, publications and press releases in Finland. Tampere University of Technology (TUT) studied Finnish state supported mold renovations in three independent researches between 2010 and 2016. First one brought out that the observations made in the condition investigation weren’t always taken into account in the implementation of the renovation. Next two researches focused to study the additional state grant processes, where the external review procedures were helping the flow of information. However, the processes still had some shortcomings and therefore the research team developed a form based method that property owners and builders can utilize for a successful removal of the indoor air problems. This paper describes the outlines of the form as well as the principles and methods for securing the flow of information from condition investigations to the renovation design and quality assurance of the building project. Project planning and monitoring measurements are also taken into account in the method.

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Civil Engineering, Research area: Structural Engineering
Contributors: Marttila, T., Annila, P., Suonketo, J., Kero, P., Pentti, M.
Number of pages: 6
Pages: 228-233
Publication date: 2017
Peer-reviewed: Yes

Publication information

Journal: PROCEDIA ENVIRONMENTAL SCIENCES
Volume: 38
ISSN (Print): 1878-0296
Original language: English
Keywords: Moisture damage, Indoor air quality (IAQ), Condition investigation, Renovation design
Source: RIS
Source ID: urn:1E04A8F47620BCE57737681F0930D8DB

Research output: Contribution to journalArticleScientificpeer-review

SimpleTree: An Efficient Open Source Tool to Build Tree Models from TLS Clouds

An open source tool named SimpleTree, capable of modelling highly accurate cylindrical tree models from terrestrial laser scan point clouds, is presented and evaluated. All important functionalities, accessible in the software via buttons and dialogues, are described including the explanation of all necessary input parameters. The method is validated utilizing 101 point clouds of six different tree species, in the main evergreen and coniferous trees. All scanned trees have been destructively harvested to get accurate estimates of above ground biomass with which we assess the accuracy of the SimpleTree-reconstructed cylinder models. The trees were grouped into four data sets and for each one a Concordance Correlation Coefficient of at least 0.92 (0.92, 0.97, 0.92, 0.94) and an total relative error at most ~8 % (2.42%, 3.59%, –4.59%, 8.27%) was achieved in the comparison of the model results to the ground truth data. A global statistical improvement of derived cylinder radii is presented as well as an efficient optimization approach to automatically improve user given input parameters. An additional check of the SimpleTree results is presented via comparison to the results of trees reconstructed using an alternative, published method.

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Department of Mathematics, Research group: MAT Inverse Problems, Mathematical modelling with wide societal impact (MathImpact)
Contributors: Hackenberg, J., Spiecker, H., Calders, K., Disney, M., Raumonen, P.
Number of pages: 50
Pages: 4245-4294
Publication date: 23 Nov 2015
Peer-reviewed: Yes

Publication information

Journal: Forests: Open Access Journal
Volume: 6
Issue number: 11
ISSN (Print): 1999-4907
Ratings: 
  • Scopus rating (2015): CiteScore 1.76 SJR 0.633 SNIP 0.761
Original language: English
URLs: 

Research output: Contribution to journalArticleScientificpeer-review

Social and Economic Importance of Water Services in the Built Environment: Need for More Structured Thinking

Abstract Community water supply takes priority over other water use purposes worldwide. Investment in water and sanitation systems in developing economies brings a multitudeof economic and social benefits. Water infrastructure systems across the world will deteriorateunless substantially more rehabilitation is done. This paper presents a structured and hierarchical framework for sustained water services development consisting of institutions, provision, water infrastructure and production of services that hopefully create better understanding of how to develop our systems and services as part of the built environment for more sustained futures.

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Department of Civil Engineering
Contributors: Katko, T. S., Hukka, J. J.
Number of pages: 7
Pages: 217-223
Publication date: 2015
Peer-reviewed: Yes

Publication information

Journal: Procedia Economics and Finance
Volume: 21
ISSN (Print): 2212-5671
Original language: English
Keywords: ageing water infrastructure, institutional development, priorities, production, provision, special features.
Source: RIS
Source ID: urn:E2D918716A9EA0A2093B36459CF62676

Research output: Contribution to journalArticleScientificpeer-review

Stirring the Construction Project Management with Co-creation and Continuous Improvement

Abstract Gathering information that is capable to explain customers’ needs is usually seen as a quite straightforward part of the traditional construction process: a customer should be able to tell all relevant needs in the first stage so that a building could be designed and built according to the gained information. But the process is lacking of service abilities if a customer wants to modify the given information due to a change in circumstances, albeit such a change is easily caused due turbulent economic situations and long spans in real-estate development projects. Hence the customer perspective regarding the construction management (CM) process should be accommodated better. In this paper, the case studies of the four premises improvement projects are reported upon, where the CM process was altered to include and apply the concepts of continuous improvement and co-creation. The process documentation covered the impacts of the case project on the usability of the premises, the indoor climate conditions (carbon dioxide and temperature) metering, the time lapse cameras and the on-line user feedback system. The documentation consists of the minutes of the meetings, the financial reporting and the time tables.Both the processes and the results of the projects are analysed. Based on the key findings, some suggestions are put forth upon how to improve the CM process to better serve customer interests and quality improvement in the future.

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Department of Civil Engineering, Research group: Digitalization in the real estate and construction sector, School of Architecture
Contributors: Savolainen, J., Kähkönen, K., Niemi, O., Poutanen, J., Varis, E.
Number of pages: 8
Pages: 64-71
Publication date: 2015
Peer-reviewed: Yes

Publication information

Journal: Procedia Economics and Finance
Volume: 21
ISSN (Print): 2212-5671
Original language: English
Keywords: Co-creation, construction management, continuous improvement, customer relations management, quality management

Bibliographical note

ORG=rak,1
ORG=ark,0

Source: RIS
Source ID: urn:76EF98A938A43DE456AFD5111BF4116C

Research output: Contribution to journalArticleScientificpeer-review

Suomen vesihuollon kehitys ja opit kansainvälisessä kontekstissa

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Civil Engineering
Contributors: Katko, T. S.
Number of pages: 4
Pages: 8-11
Publication date: 2017
Peer-reviewed: Yes

Publication information

Journal: Vesitalous
Volume: 58
Issue number: 1
ISSN (Print): 0505-3838
Original language: Finnish

Research output: Contribution to journalArticleScientificpeer-review

Surrogate modeling for initial rotational stiffness of welded tubular joints

Recently, buildings and structures erected in Russia and abroad have to comply with stringent economic requirements. Buildings should not only be reliable and safe, have a beautiful architectural design, but also meet the criteria of rationality and energy efficiency. In practice, this usually means the need for additional comparative analysis in order to determine the optimal solution to the engineering task. Usually such an analysis is time-consuming and requires huge computational efforts. In this regard, surrogate modeling can be an effective tool for solving such problems. This article provides a brief description of surrogate models and the basic techniques of their construction, describes the construction process of a surrogate model to calculate initial rotational stiffness of welded RHS joints made of high strength steel (HSS).

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Department of Civil Engineering, Research group: Metal and Light-wight structures, Peter the Great St. Petersburg Polytechnic University, Peter Great St Petersburg Polytech Univ
Contributors: Garifullin, M. R., Barabash, A. V., Naumova, E. A., Zhuvak, O. V., Jokinen, T., Heinisuo, M.
Number of pages: 24
Pages: 53-76
Publication date: 2016
Peer-reviewed: Yes

Publication information

Journal: Magazine of Civil Engineering
Volume: 63
Issue number: 3
ISSN (Print): 2071-4726
Ratings: 
  • Scopus rating (2016): CiteScore 0.3 SJR 0.236 SNIP 0.755
Original language: English
ASJC Scopus subject areas: Civil and Structural Engineering
Keywords: Finite element analysis, Kriging, Plane bending, Square hollow section, Surrogate modeling

Bibliographical note

EXT="Garifullin, M. R."

Source: Scopus
Source ID: 84994045052

Research output: Contribution to journalArticleScientificpeer-review

Systematic Search and Ranking of Physical Contradictions Using Graph Theory Principles: Toward a Systematic Analysis of Design Strategies and their Impacts: TRIZ and Knowledge-Based Innovation in Science and Industry

Abstract This paper presents three interconnected developments made during the course of a recent collective research work, the development of a systematic graph-based search tool for physical contradictions, a ranking approach for defining the order of criticality of the design contradictions and the associated analysis of the different design strategies that can be used to solve those contradictions or to enhance performance indicators. The systematic graph-based search for physical contradictions is using the set of elementary variables necessary to describe the system as basic input. The initial set is extracted based on taxonomy of variables combining classification work from NIST and classification of variables derived from the Bond Graph theory. The contradiction search method is in a second step classifying the set of variables into three categories: the constraint variables imposed to the designers by the context and the environment, the design variables on which the designer as the possibility to act and the performance variables that are used to evaluate the performance of the designed system. In a third step, interactions between variables are searched using two possibilities: a causal ordering algorithm developed during the course of the research or via a collective work of experts. The result of this step is a directed graph starting from the constraints variables and ending with the performance variables. In the fourth step objectives have to be assigned to the performance variables (minimal value, maximal value or target value). Those objectives are propagated back into the graph by analyzing the impact of the variables interacting with the performance variables. A physical contradiction is detected each time it is discovered that a design variable is associated with two contradictory objectives. Following this approach, a contradiction is represented as a node in the directed graph. It is possible to systematically map the different design strategies that can be used and to rank the possible impact of those design strategies. The article presents a concrete application of the approach on the case study of an air bearing and demonstrates the novelty of the approach to generate new viewpoints and insight in the analysis of the early stages of the development process. The potential impact of such type of design support is potentially very important. A future step will consists of developing a computer aided tool implementing the method.

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Department of Mechanical Engineering and Industrial Systems, Aalto University, Aalto Univ, Aalto University, Aalto Univ Finland, Dept Engn Design & Prod, Sch Engn
Contributors: Coatanéa, E., Ryynänen, L., Calonius, O., Mokammel, F., Riitahuhta, A.
Number of pages: 18
Pages: 1165-1182
Publication date: 2015
Peer-reviewed: Yes

Publication information

Journal: Procedia Engineering
Volume: 131
ISSN (Print): 1877-7058
Ratings: 
  • Scopus rating (2015): CiteScore 0.56 SJR 0.239 SNIP 0.566
Original language: English
Keywords: graph theory, TRIZ, physical contradiction, innovative principles, air bearing

Bibliographical note

EXT="Coatanéa, Eric"
EXT="Riitahuhta, Asko"

Source: RIS
Source ID: urn:4AB62BAC3A0A0D77B9BD9FDFF1D977D4

Research output: Contribution to journalArticleScientificpeer-review

Target tracking via combination of particle filter and optimisation techniques

Particle filters (PFs) have been used for the nonlinear estimation for a number of years. However, they suffer from the impoverishment phenomenon. It is brought by resampling which intends to prevent particle degradation, and therefore becomes the inherent weakness of this technique. To solve the problem of sample impoverishment and to improve the performance of the standard particle filter we propose a modification to this method by adding a sampling mechanism inspired by optimisation techniques, namely, the pattern search, particle swarm optimisation, differential evolution and Nelder-Mead algorithms. In the proposed methods, the true state of the target can be better expressed by the optimised particle set and the number of meaningful particles can be grown significantly. The efficiency of the proposed particle filters is supported by a truck-trailer problem. Simulations show that the hybridised particle filter with Nelder-Mead search is better than other optimisation approaches in terms of particle diversity.

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Department of Signal Processing, University of Toledo, Bowling Green State University
Contributors: Hosseini, S. S. S., Jamali, M. M., Astola, J., Gorsevski, P. V.
Number of pages: 18
Pages: 212-229
Publication date: 2016
Peer-reviewed: Yes

Publication information

Journal: International Journal of Mathematical Modelling and Numerical Optimization
Volume: 7
Issue number: 2
ISSN (Print): 2040-3607
Ratings: 
  • Scopus rating (2016): CiteScore 1.44 SJR 0.351 SNIP 0.935
Original language: English
ASJC Scopus subject areas: Numerical Analysis, Modelling and Simulation, Applied Mathematics
Keywords: Differential evolution, Nelder-Mead, Particle filter, Particle swarm optimisation, Pattern search, PSO, Target tracking
Source: Scopus
Source ID: 84990239582

Research output: Contribution to journalArticleScientificpeer-review

Teoriaa ja kokemuksia arvioinnista MOOCien aikakaudella

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Department of Information Management and Logistics, Research group: Novi, Tampere University of Applied Sciences
Contributors: Helander, N., Myllylä, M.
Number of pages: 7
Pages: 70-77
Publication date: 11 Jul 2016
Peer-reviewed: Yes

Publication information

Journal: TAMPEREEN AMMATTIKORKEAKOULUN JULKAISUJA. SARJA B, RAPORTTEJA
ISSN (Print): 1456-002X
Original language: Finnish

Research output: Contribution to journalArticleScientificpeer-review

Testing the near field/far field model performance for prediction of particulate matter emissions in a paint factory

A Near Field/Far Field (NF/FF) model is a well-accepted tool for precautionary exposure assessment but its capability to estimate particulate matter (PM) concentrations is not well studied. The main concern is related to emission source characterization which is not as well defined for PM emitters compared to e.g. for solvents. One way to characterize PM emission source strength is by using the material dustiness index which is scaled to correspond to industrial use by using modifying factors, such as handling energy factors. In this study we investigate how well the NF/FF model predicts PM concentration levels in a paint factory. PM concentration levels were measured during big bag and small bag powder pouring. Rotating drum dustiness indices were determined for the specific powders used and applied in the NF/FF model to predict mass concentrations. Modeled process specific concentration levels were adjusted to be similar to the measured concentration levels by adjusting the handling energy factor. The handling energy factors were found to vary considerably depending on the material and process even-though they have the same values as modifying factors in the exposure models. This suggests that the PM source characteristics and process-specific handling energies should be studied in more detail to improve the model-based exposure assessment.

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Department of Physics, Danmarks Tekniske Universitet, DTU Informatik, Denmark Technical University DTU, National Research Centre for the Working Environment, Department of Micro and Nanotechnology
Contributors: Koivisto, A. J., Jensen, A. C. Ø., Levin, M., Kling, K. I., Maso, M. D., Nielsen, S. H., Jensen, K. A., Koponen, I. K.
Number of pages: 12
Pages: 62-73
Publication date: 1 Jan 2015
Peer-reviewed: Yes

Publication information

Journal: Environmental Sciences: Processes and Impacts
Volume: 17
Issue number: 1
ISSN (Print): 2050-7887
Ratings: 
  • Scopus rating (2015): CiteScore 2.5 SJR 0.998 SNIP 0.923
Original language: English
ASJC Scopus subject areas: Environmental Chemistry, Public Health, Environmental and Occupational Health, Management, Monitoring, Policy and Law, Medicine(all)

Bibliographical note

EXT="Koivisto, A. J."

Source: Scopus
Source ID: 84920000979

Research output: Contribution to journalArticleScientificpeer-review

The effect of tungsten carbide particles content in a weld deposit on its abrasion resistance

This paper describes the study of a weld deposit which contains tungsten carbide particles. For testing the process of gas metal arc welding in a protective atmosphere of a mixed gas with two types of cored wires were used. The selected cored electrode of a "F-Durit G" type already contains the tungsten carbide particles. The second used option was a cored electrode of a "Megafil A 864M" type with an increased boron content. For the second variant tungsten carbide particles with a 1-2 mm size were added to the weld pool, and a composite material layer was thus created. For the mentioned test two different levels of welding parameters were selected and the final weld deposit properties, particularly their abrasion resistance, were examined.

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Materials Science, VSB-Technical University Ostrava, Czech Republic, University of Osijek
Contributors: Hlavatý, I., Kozák, J., Krejci, L., Samardzic, I., Tuominen, J.
Number of pages: 5
Pages: 1345-1349
Publication date: Oct 2017
Peer-reviewed: Yes

Publication information

Journal: Technical Gazette - Technicki vjesnik
Volume: 24
Issue number: 5
ISSN (Print): 1848-6339
Original language: English
Keywords: Hardfacing, Metal matrix composite, Gas metal arc welding, Abrasive wear
Electronic versions: 

Research output: Contribution to journalArticleScientificpeer-review

The effects of neuron morphology on graph theoretic measures of network connectivity: The analysis of a two-level statistical model

We developed a two-level statistical model that addresses the question of how properties of neurite morphology shape the large-scale network connectivity. We adopted a low-dimensional statistical description of neurites. From the neurite model description we derived the expected number of synapses, node degree, and the effective radius, the maximal distance between two neurons expected to form at least one synapse. We related these quantities to the network connectivity described using standard measures from graph theory, such as motif counts, clustering coefficient, minimal path length, and small-world coefficient. These measures are used in a neuroscience context to study phenomena from synaptic connectivity in the small neuronal networks to large scale functional connectivity in the cortex. For these measures we provide analytical solutions that clearly relate different model properties. Neurites that sparsely cover space lead to a small effective radius. If the effective radius is small compared to the overall neuron size the obtained networks share similarities with the uniform random networks as each neuron connects to a small number of distant neurons. Large neurites with densely packed branches lead to a large effective radius. If this effective radius is large compared to the neuron size, the obtained networks have many local connections. In between these extremes, the networks maximize the variability of connection repertoires. The presented approach connects the properties of neuron morphology with large scale network properties without requiring heavy simulations with many model parameters. The two-steps procedure provides an easier interpretation of the role of each modeled parameter. The model is flexible and each of its components can be further expanded. We identified a range of model parameters that maximizes variability in network connectivity, the property that might affect network capacity to exhibit different dynamical regimes.

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Faculty of Biomedical Sciences and Engineering, Research group: Computational Neuro Science-CNS, University of Oslo
Contributors: Acimovic, J., Mäki-Marttunen, T., Linne, M.
Publication date: 10 Jun 2015
Peer-reviewed: Yes

Publication information

Journal: Frontiers in Neuroanatomy
Volume: 9
Issue number: June
Article number: 76
ISSN (Print): 1662-5129
Ratings: 
  • Scopus rating (2015): CiteScore 2.73 SJR 1.852 SNIP 0.782
Original language: English
ASJC Scopus subject areas: Anatomy, Neuroscience (miscellaneous), Cellular and Molecular Neuroscience
Keywords: Graph theory, Motifs, Network connectivity, Neurite density field, Neuron morphology, Theoretical model
Source: Scopus
Source ID: 84935865748

Research output: Contribution to journalArticleScientificpeer-review

Theoretical 71-Concept Platform for Advancing Construction-related Business Management

Abstract The aim is to advance business management (BM) in constructionvia the independent literature review. 71 construction-related BM concepts have been published between 1990 and 2013. Focal firms are based in the OECD countries. 34 (48%) concepts are related to construction management (CM), 14 (20%) concepts to industrial management and international marketing, 12 (17%) concepts to project management (PM) and 11 (15%) concepts to corporate real estate. The combined share of 16 Porterian, 16 dynamism-based, 15 organisation-based, and 10 knowledge-based concepts is 81%. The 71-concept platform is neither highly theoretically advanced, nor highly applicable. The propositions are defined for advancement.

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Department of Civil Engineering, Research group: Digitalization in the real estate and construction sector
Contributors: Huovinen, P.
Number of pages: 8
Pages: 80-87
Publication date: 2015
Peer-reviewed: Yes

Publication information

Journal: Procedia Economics and Finance
Volume: 21
ISSN (Print): 2212-5671
Original language: English
ASJC Scopus subject areas: Business, Management and Accounting(all)
Keywords: Applied research, business management, conceptualisation, construction, literature review, real estate, school of thought
Source: RIS
Source ID: urn:2259E842B1A87C3870EDBE85F572BB11

Research output: Contribution to journalArticleScientificpeer-review

Three-color vector nematicon

Light localization via reorientation in nematic liquid crystals supports multi-component optical spatial solitons, i.e., vector nematicons. By launching three optical beams of different wavelengths and the same input polarization in a bias-free planar cell, we demonstrate a three-color vector nematicon which is self-trapped thanks to its incoherent nature.

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Photonics, Politechnika Warszawska, Univ Roma Tre, Roma Tre University, Dept Elect Engn, NooEL, University “Roma Tre”, Aerosol Physics Laboratory
Contributors: Laudyn, U. A., Kwaśny, M., Karpierz, M. A., Assanto, G.
Number of pages: 3
Pages: 36-38
Publication date: 2017
Peer-reviewed: Yes

Publication information

Journal: Photonics Letters of Poland
Volume: 9
Issue number: 2
ISSN (Print): 2080-2242
Ratings: 
  • Scopus rating (2017): CiteScore 0.48 SJR 0.25 SNIP 0.36
Original language: English
ASJC Scopus subject areas: Electronic, Optical and Magnetic Materials
Electronic versions: 
Source: Scopus
Source ID: 85021814168

Research output: Contribution to journalArticleScientificpeer-review

Time-resolved characterization of primary and secondary particle emissions of a modern gasoline passenger car

Changes in traffic systems and vehicle emission reduction technologies significantly affect traffic-related emissions in urban areas. In many densely populated areas the amount of traffic is increasing, keeping the emission level high or even increasing. To understand the health effects of traffic related emissions, both primary and secondary particles that are formed in the atmosphere from gaseous exhaust emissions need to be characterized. In this study we used a comprehensive set of measurements to characterize both primary and secondary particulate emissions of a modern gasoline passenger car. Our aerosol particle study covers the whole process chain in emission formation, from the engine to the atmosphere, and takes into account also differences in driving patterns. We observed that in mass terms, the amount of secondary particles was 13 times higher than the amount of primary particles. The formation, composition, number, and mass of secondary particles was significantly affected by driving patterns and engine conditions. The highest gaseous and particulate emissions were observed at the beginning of the test cycle when the performance of the engine and the catalyst was below optimal. The key parameter for secondary particle formation was the amount of gaseous hydrocarbons in primary emissions; however, also the primary particle population had an influence. Thus, in order to enhance human health and wellbeing in urban areas, our study strongly indicates that in future legislation, special attention should be directed into the reduction of gaseous hydrocarbons.

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Department of Physics, Research area: Aerosol Physics, Finnish Meteorological Institute, Helsinki, VTT Technical Research Centre of Finland, Pennsylvania State University, Atmospheric Composition Research, Finnish Meteorological Institute
Contributors: Karjalainen, P., Timonen, H., Saukko, E., Kuuluvainen, H., Saarikoski, S., Aakko-Saksa, P., Murtonen, T., Dal Maso, M., Ahlberg, E., Svenningsson, B., Brune, W. H., Hillamo, R., Keskinen, J., Rönkkö, T.
Number of pages: 29
Pages: 33253-33282
Publication date: 25 Nov 2015
Peer-reviewed: Yes

Publication information

Journal: Atmospheric Chemistry and Physics Discussions
Volume: 15
Issue number: 22
ISSN (Print): 1680-7367
Ratings: 
  • Scopus rating (2015): SNIP 0.101
Original language: English

Research output: Contribution to journalArticleScientificpeer-review

Towards a Classification Schema for Development Technologies: an Empirical Study in the Avionic Domain

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: University of Kaiserslautern, Free University of Bozen-Bolzano, Free University of Bolzano-Bozen, Liebherr-Aerospace
Contributors: Taibi, D., Lenarduzzi, V., Dieudonne, L., Plociennik, C.
Number of pages: 11
Pages: 125-135
Publication date: 1 Aug 2015
Peer-reviewed: Yes

Publication information

Journal: INTERNATIONAL JOURNAL ON ADVANCES IN SOFTWARE
Volume: 8
Issue number: 1&2
ISSN (Print): 1942-2628
Original language: English

Research output: Contribution to journalArticleScientificpeer-review

Tutkimuskatsaus: Uusia menetelmiä haavan paranemisen arviointiin ja seurantaan

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Faculty of Biomedical Sciences and Engineering, Turku Univ Hosp, University of Turku, Åbo Akademi
Contributors: Kekonen, A., Bergelin, M., Viik, J.
Number of pages: 3
Pages: 30-32
Publication date: 20 Oct 2018
Peer-reviewed: Yes

Publication information

Journal: HAAVA
Volume: 20
Issue number: 3
ISSN (Print): 1456-3037
Original language: Finnish
ASJC Scopus subject areas: Biomedical Engineering, Dermatology

Research output: Contribution to journalArticleScientificpeer-review

Yliopistomatematiikan sähköisten tehtävien ja matemaattisen ajattelun kehittäminen

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Mathematics, Research group: Positioning, Research group: Computer Science and Applied Logics
Contributors: Myllykoski, T. J., Mattila, P., Ali-Löytty, S., Kaarakka, T., Viro, E.
Number of pages: 11
Pages: 46-56
Publication date: 2018
Peer-reviewed: Yes

Publication information

Journal: FMSERA Journal
Volume: 2
Issue number: 1
ISSN (Print): 2489-4583
Original language: Finnish

Research output: Contribution to journalArticleScientificpeer-review

基于相位旋转的SCMA码本优化方法

To solve the high bit error ratio (BER) problem under the condition of high overload of sparse code multiple access (SCMA), the influence of phase rotation on the SCMA code is studied firstly. Two schemes of optimizing the phase rotation angle are then proposed based on the controlled-distance among the constellation points of synthetic constellation. The first scheme is called the rotation based on maximizing minimum euclidean distance (M-rotation) and the second is the rotation based on exponential average (E-rotation). E-rotation achieves better BER performance than M-rotation, but M-rotation is outstanding at the case of high signal-to-noise ratio (SNR). With respect to the decoding complexity, both schemes have no distinction but E-rotation gets better performance than M-rotation when the partial extrinsic information transmission of MPA (PEIT-MPA) is adopted.

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Electronics and Communications Engineering, Chongqing University of Posts and Telecommunications, Huawei Technologies Co., Ltd.
Contributors: Shao, K., Zhou, B., Wang, G., Yu, B.
Number of pages: 9
Pages: 2354-2362
Publication date: 2018
Peer-reviewed: Yes

Publication information

Journal: Xi Tong Gong Cheng Yu Dian Zi Ji Shu/Systems Engineering and Electronics
Volume: 40
Issue number: 10
ISSN (Print): 1001-506X
Ratings: 
  • Scopus rating (2018): CiteScore 0.58 SJR 0.198 SNIP 0.446
Original language: Chinese
ASJC Scopus subject areas: Control and Systems Engineering, Electrical and Electronic Engineering
Keywords: Codebook design, Phase rotation, Sparse code multiple access (SCMA), Synthetic constellation
Source: Scopus
Source ID: 85056877151

Research output: Contribution to journalArticleScientificpeer-review

Advanced coatings by novel high-kinetic thermal spray processes

Thermal spraying includes a group of coating processes in which metallic and non-metallic materials are spray deposited as fine particles in a molten or semi-molten condition, or even in fully solid state to form a coating. Thermal spraying allows deposition of relatively thick coatings, from some tens of micrometers up to several millimeters in thickness. Thermally sprayed coatings are used in different applications including protective and functional coatings in mechanical engineering, energy technology, biomedical, steel, automotive and aerospace technologies and in many other industrial sectors. Novel high-kinetic spray processes, e.g., the high velocity air-fuel (HVAF) technology are the latest developments in the area and therefore they are actively studied in the framework of the Hybrid Materials research program in collaboration with Finnish industrial and research partners. Novel multifunctional coatings are under development for specific industrial applications.

General information

Publication status: Published
MoE publication type: D1 Article in a trade journal
Organisations: Department of Materials Science, Research group: Surface Engineering
Contributors: Matikainen, V., Koivuluoto, H., Milanti, A., Vuoristo, P.
Number of pages: 5
Pages: 46-50
Publication date: 9 Feb 2015
Peer-reviewed: Unknown

Publication information

Journal: Materia
Volume: 73
Issue number: 1
ISSN (Print): 1459-9694
Original language: English
ASJC Scopus subject areas: Surfaces, Coatings and Films
Keywords: thermal spraying, HVOF, HVAF

Research output: Contribution to journalArticleProfessional

Education and Materials Joining Research methods at Tampere University of Technology

At Tampere University of Technology (TUT), education and research related to joining technologies are performed by two university departments, the Department of Materials Science (DMS) and the Department of Mechanical Engineering and Industrial Systems (MEI). Many of the research activities are conducted via close collaboration between these two units.

General information

Publication status: Published
MoE publication type: D1 Article in a trade journal
Organisations: Department of Materials Science, Research group: Metals Technology, Research group: Surface Engineering, Department of Mechanical Engineering and Industrial Systems, Research group: Laser
Contributors: Peura, P., Vuoristo, P., Vihinen, J.
Number of pages: 4
Pages: 73-76
Publication date: Jun 2015
Peer-reviewed: Unknown

Publication information

Journal: Hitsaustekniikka
Volume: 65
Issue number: 2-3/2015
ISSN (Print): 0437-6056
Original language: English

Bibliographical note

ORG=mol,0.5
ORG=mei,0.5

Research output: Contribution to journalArticleProfessional

Hard Rock (- ei Hallelujah, vaan) Tribology: Pohjoismainen kaivosteollisuuden kulumisongelmiin keskittyvä kurssi ja seminaari Tampereella

General information

Publication status: Published
MoE publication type: D1 Article in a trade journal
Organisations: Department of Materials Science, Research group: Materials Characterization
Contributors: Valtonen, K., Tiainen, T.
Pages: 30-33
Publication date: 2 Sep 2015
Peer-reviewed: Unknown

Publication information

Journal: Materia
Volume: 2015
Issue number: 1
ISSN (Print): 1459-9694
Original language: Finnish

Research output: Contribution to journalArticleProfessional

Kangasala-talo: Vanhan kulttuuripitäjän uusi kulttuuritalo

General information

Publication status: Published
MoE publication type: D1 Article in a trade journal
Organisations: School of Architecture, Research group: History of Architecture
Contributors: Koponen, O.
Number of pages: 3
Pages: 67-69
Publication date: 2015
Peer-reviewed: Unknown

Publication information

Journal: Arkkitehti
Volume: 2015
Issue number: 4/2015
ISSN (Print): 0783-3660
Original language: Finnish

Research output: Contribution to journalArticleProfessional

Kolloidisten suspensioiden online -analysointi: tutkimuksesta liiketoimintaa

General information

Publication status: Published
MoE publication type: D1 Article in a trade journal
Organisations: Department of Materials Science, Research group: Ceramic materials, Department of Automation Science and Engineering, Research area: Measurement Technology and Process Control, Research area: Microsystems, Research area: Dynamic Systems
Contributors: Järveläinen, M., Yli-Hallila, T., Salpavaara, T., Verho, J., Vilkko, M., Levänen, E.
Number of pages: 4
Pages: 54-57
Publication date: Oct 2015
Peer-reviewed: Unknown

Publication information

Journal: Materia
Issue number: 5/2015
ISSN (Print): 1459-9694
Original language: Finnish

Bibliographical note

ORG=mol,0.5
ORG=ase,0.5

Research output: Contribution to journalArticleProfessional

Koteja ja kokonaistaideteoksia

General information

Publication status: Published
MoE publication type: D1 Article in a trade journal
Organisations: School of Architecture, Research group: Urban Planning
Contributors: Chudoba, M.
Number of pages: 3
Pages: 76-78
Publication date: 2015
Peer-reviewed: Unknown

Publication information

Journal: Arkkitehti
Issue number: 3
ISSN (Print): 0783-3660
Original language: Finnish

Research output: Contribution to journalArticleProfessional

Lasitettujen parvekkeiden ja terassien käyttäytyminen tulipaloissa

General information

Publication status: Published
MoE publication type: D1 Article in a trade journal
Organisations: Department of Civil Engineering, Research group: Service Life Engineering of Structures, Palotekninen insinööritoimisto Markku Kauriala Oy, Lumon Oy
Contributors: Hilliaho, K., Hietaniemi, J., Visa, P.
Number of pages: 6
Pages: 18-23
Publication date: 24 Aug 2015
Peer-reviewed: Unknown

Publication information

Journal: Palontorjuntatekniikka
Issue number: Erikoisnumero
Original language: Finnish

Research output: Contribution to journalArticleProfessional

Muuttuvat ajotilanteet aiheuttavat uudentyyppisiä ajoneuvojen hiukkaspäästöjä

General information

Publication status: Published
MoE publication type: D1 Article in a trade journal
Organisations: Department of Physics, Research area: Aerosol Physics
Contributors: Karjalainen, P.
Number of pages: 4
Pages: 28-31
Publication date: 12 Oct 2015
Peer-reviewed: Unknown

Publication information

Journal: Ympäristö ja terveys
Volume: 46
Issue number: 6
ISSN (Print): 0358-3333
Original language: Finnish

Research output: Contribution to journalArticleProfessional

Postmodernismi Suomen rakennusperinnössä

General information

Publication status: Published
MoE publication type: D1 Article in a trade journal
Organisations: School of Architecture, Research group: History of Architecture
Contributors: Koponen, O.
Number of pages: 3
Pages: 72-74
Publication date: 2015
Peer-reviewed: Unknown

Publication information

Journal: Arkkitehti
Volume: 2015
Issue number: 2/2015
ISSN (Print): 0783-3660
Original language: Finnish

Research output: Contribution to journalArticleProfessional

Projektioppiminen yläkoulun matematiikassa

General information

Publication status: Published
MoE publication type: D1 Article in a trade journal
Organisations: Department of Mathematics
Contributors: Viro, E., Eriksson, S.
Number of pages: 5
Pages: 1005-1009
Publication date: 2015
Peer-reviewed: Unknown

Publication information

Journal: Lumat
Volume: 3
Issue number: 7
ISSN (Print): 2323-7112
Original language: Finnish

Research output: Contribution to journalArticleProfessional

Simulointi nopeuttaa käyttöiän määritystä

General information

Publication status: Published
MoE publication type: D1 Article in a trade journal
Organisations: Department of Materials Science, Research group: Tribology and Machine Elements, Department of Mechanical Engineering and Industrial Systems, Research group: Kokeellinen virtaustekniikka, Research area: Applied Mechanics, Department of Intelligent Hydraulics and Automation, Research group: Fluid power automation in mobile machines, Department of Electrical Engineering, Research area: Reliability
Contributors: Ojala, P., Saarenrinne, P., Miettinen, J., Multanen, P., Kiilunen, J., Hietala, J., Kolu, A., Pippola, J., Mostofizadeh, M., Ylönen, M.
Number of pages: 4
Pages: 24-27
Publication date: 2015
Peer-reviewed: Unknown

Publication information

Journal: Promaint
Volume: 2
ISSN (Print): 1797-2000
Original language: Finnish

Bibliographical note

ORG=mol,0.25
ORG=mei,0.25
ORG=iha,0.25
ORG=dee,0.25

Research output: Contribution to journalArticleProfessional

Suomen keraaminen seura - Keramiska sällskapet i Finland

An Article about the history and present state of the Finnish ceramic society

General information

Publication status: Published
MoE publication type: D1 Article in a trade journal
Organisations: Department of Materials Science, Research group: Ceramic materials
Contributors: Frankberg, E. J.
Number of pages: 1
Pages: 58-58
Publication date: Oct 2015
Peer-reviewed: Unknown

Publication information

Journal: Materia
Volume: 5
ISSN (Print): 1459-9694
Original language: Finnish
Keywords: Ceramic, society, Finland

Research output: Contribution to journalArticleProfessional

Tampereelta valmistuneiden vesihuoltoalan diplomi-insinöörien sijoittuminen ja odotukset yliopisto-opetukselle

General information

Publication status: Published
MoE publication type: D1 Article in a trade journal
Organisations: Department of Chemistry and Bioengineering, Department of Civil Engineering, Tampere University of Technology, University of Tampere
Contributors: Katko, T. S., Lukka, A., Rajala, R.
Number of pages: 3
Pages: 45-47
Publication date: 2015
Peer-reviewed: Unknown

Publication information

Journal: Vesitalous
Issue number: 2
ISSN (Print): 0505-3838
Original language: Finnish

Bibliographical note

ORG=keb,1
ORG=rak,0
AUX=orc,"Lukka, Anna"

Research output: Contribution to journalArticleProfessional

Tampereen matemaattisten aineiden aineenopettajakoulutus

We present how the education of subject teachers is organized in mathematics, science and computer science in Tampere. It is based on the idea that both engineering students and students from mathematics and science may choose to become a subject teacher. Students are accepted either to the master’s degree program in Science and Engineering of Tampere University of Technology or the master’s program of Mathematics and Statistics of University of Tampere. Students from different universities are giving opportunities to learn from each other. They study physics and chemistry in Tampere University of Technology and do pedagogical studies in University of Tampere. Both universities have also developed special motivating courses based on the didactical research to their students. In mathematics, there is a joined course for the second or third year students motivating towards teaching carrier. In both universities there are possibilities to do the master or bachelor thesis in didactics of mathematics or science. Both universities have an important role in education of subject teachers in Finland. Tampere University of Technology is providing opportunities during studies to cooperate between schools and industry. It gives ideas how science and mathematics are applied in the modern society. University of Tampere also trains primary school teachers with specialization in mathematics.

General information

Publication status: Published
MoE publication type: D1 Article in a trade journal
Organisations: Department of Mathematics, Research group: MAT Clifford analysis, Department of Chemistry and Bioengineering, Research group: Supramolecular photochemistry
Contributors: Eriksson, S., Haukkanen, P., Hukka, T. I., Lemmetyinen, H.
Number of pages: 8
Pages: 800-807
Publication date: 11 Mar 2015
Peer-reviewed: Unknown

Publication information

Journal: Lumat
Volume: 3
Issue number:  6
ISSN (Print): 2323-7112
Original language: Finnish

Bibliographical note

ORG=mat,0.7
ORG=keb,0.3

Research output: Contribution to journalArticleProfessional

Taskinen yksissä kansissa

General information

Publication status: Published
MoE publication type: D1 Article in a trade journal
Organisations: School of Architecture, Research group: History of Architecture
Contributors: Passinmäki, P.
Number of pages: 2
Pages: 89-90
Publication date: 2015
Peer-reviewed: Unknown

Publication information

Journal: Arkkitehti
Issue number: 2
ISSN (Print): 0783-3660
Original language: Finnish

Research output: Contribution to journalArticleProfessional

Arbitrary Land Use Policy in Jordan between Legal Brand and Property Control

The absence of appropriate land use planning, leapfrog population growth, and high demand for urban land persist among the prevailing urban characteristics of Amman. Generally, land use policy in Jordan, and particularly in Amman remains out of control because of some social considerations and inconsistent laws.
Such phenomenon creates serious problems related to the local land market. This paper attempts to address the wide gap between land supply and demand through analysis of the relevant institutional framework, land governance, land policy and practice in Jordan. However, the historical background of land proprietorship is given parallel to the overall institutional framework of land regulation. The magnitude and reason for legal land tenure along the proposed urban corridors shall also be examined.

General information

Publication status: Published
MoE publication type: E1 Popularised article, newspaper article
Organisations: University of Jordan, Architectural department, Hashemite University, Zarqa-Jordan
Contributors: Tewfik, M., Amr, A.
Number of pages: 8
Pages: 86-93
Publication date: Dec 2014
Peer-reviewed: Unknown

Publication information

Journal: European International Journal of Science and Technology
Volume: 3
Issue number: 9
ISSN (Print): 2304-9693
Original language: English
ASJC Scopus subject areas: Urban Studies, Geography, Planning and Development, Architecture
Keywords: Urban development, regional development, timber construction, innovation network, development platform, Urban form, urban planning, urban processes

Research output: Contribution to journalArticleGeneral public

A review study of photovoltoltaic array maximum power point tracking algorithms

There are numerous maximum power point tracking (MPPT) algorithms for improving the energy efficiency of solar photovoltaic (PV) systems. The main differences between these algorithms are digital or analog implementation, simplicity of the design, sensor requirements, convergence speed, range of effectiveness, as well as hardware costs. Therefore, choosing the right algorithm is very important to the users, because it affects the electrical efficiency of PV system and reduces the costs by decreasing the number of solar panels needed to get the desired power. This paper provides the comparison of 62 different techniques used in tracking the maximum power based on literature survey. This paper is intended to be a reference for PV systems users.

General information

Publication status: Published
MoE publication type: A2 Review article in a scientific journal
Organisations: Department of Electrical Engineering, Research area: Power engineering, Islamic University of Gaza
Contributors: El-Khozondar, H., El-Khozondar, R., Matter, K., Suntio, T.
Number of pages: 8
Publication date: 18 Feb 2016
Peer-reviewed: Yes

Publication information

Journal: Renewables: Wind, Water, and Solar
Volume: 3
Issue number: 1
ISSN (Print): 2198-994X
Original language: English

Research output: Contribution to journalReview ArticleScientificpeer-review

Future in wood? Timber construction in boosting local development.

Large scale timber construction has been on the upswing for some time in many European countries. Besides the building cluster, also regions and cities have taken advantage of the ongoing timber boom in their economic and spatial development. In this article the focus is on the South Ostrobothnia region and the city of Seinäjoki in Western Finland, where the potential of the business is quite weakly exploited regardless of favourable preconditions. By studying the key actors of the innovation network we are able to better understand the premises of the local development platform that should aim at boosting timber construction.

General information

Publication status: Published
MoE publication type: A2 Review article in a scientific journal
Organisations: School of Architecture, Research group: Urban Laboratory
Contributors: Hynynen, A.
Number of pages: 13
Pages: 127-139
Publication date: 2016
Peer-reviewed: Yes

Publication information

Journal: European Spatial Research and Policy
Volume: 23
Issue number: 1
ISSN (Print): 1231-1952
Ratings: 
  • Scopus rating (2016): CiteScore 0.28 SJR 0.152 SNIP 0.378
Original language: English
Keywords: Urban development, regional development, timber construction, innovation network, development platform

Research output: Contribution to journalReview ArticleScientificpeer-review

Interdisciplinary water research network building within Nordic and Baltic countries.

General information

Publication status: Published
MoE publication type: A2 Review article in a scientific journal
Organisations: Department of Chemistry and Bioengineering, Research group: Industrial Bioengineering and Applied Organic Chemistry, Department of Civil Engineering
Contributors: Sörensen, J., Kurki, V., Sidaraviciute, R., Ngari Kibocha, S., Retike, I., Ikobe, G., Tichonovas, M., Elijosiute, E., Rajala, R.
Number of pages: 5
Pages: 79-83
Publication date: 2015
Peer-reviewed: Yes

Publication information

Journal: Vatten
Issue number: 71
ISSN (Print): 0042-2886
Original language: English

Research output: Contribution to journalReview ArticleScientificpeer-review

Local narratives in the long term water conflicts: Case of Turku Region in Finland

General information

Publication status: Published
MoE publication type: A2 Review article in a scientific journal
Organisations: Civil Engineering
Contributors: Juuti, P. S., Kurki, V., Rajala, R.
Pages: 39-49
Publication date: May 2017
Peer-reviewed: Yes

Publication information

Journal: Ympäristöhistoria: Finnish Journal of Environmental History
Volume: 2017
Issue number: 1
ISSN (Print): 1799-6953
Original language: English

Research output: Contribution to journalReview ArticleScientificpeer-review

Printed and organic diodes: devices, circuits and applications

We review the history and current state of the art of diodes fabricated with organic semiconductors and other printable materials. In particular, we look at the integration of printed diodes into circuits and systems for applications, with particular emphasis on rectification, energy harvesting, and negative differential resistance (e.g. tunnel diodes). An overview of solution processed and printable organic and inorganic materials utilised in diodes is provided with an in depth analysis of their physics of operation. Furthermore, it is explained how the diverse array in which printed diodes can be implemented demonstrates their potential in the printed electronics industry.

General information

Publication status: Published
MoE publication type: A2 Review article in a scientific journal
Organisations: Electronics and Communications Engineering, Research group: Laboratory for Future Electronics, Research group: Wireless Communications and Positioning
Contributors: Kraft, T., Berger, P., Lupo, D.
Number of pages: 19
Publication date: 29 Sep 2017
Peer-reviewed: Yes

Publication information

Journal: Flexible and Printed Electronics
Volume: 2
Issue number: 3
Article number: 033001
ISSN (Print): 2058-8585
Ratings: 
  • Scopus rating (2017): CiteScore 2.68 SJR 0.779 SNIP 1.163
Original language: English
Keywords: printed diodes, Printed electronics, Organic electronics, Energy Harvesting, rectification, tunnel diodes

Research output: Contribution to journalReview ArticleScientificpeer-review

Sata vuotta Suomen suurimmasta lavantautiepidemiasta

General information

Publication status: Published
MoE publication type: A2 Review article in a scientific journal
Organisations: Civil Engineering
Contributors: Juuti, P., Rajala, R.
Number of pages: 3
Pages: 12-14
Publication date: 2017
Peer-reviewed: Yes

Publication information

Journal: Vesitalous
Volume: 2017
Issue number: 1
ISSN (Print): 0505-3838
Original language: Finnish

Research output: Contribution to journalReview ArticleScientificpeer-review

Valkea kaupunki, mustat vedet

General information

Publication status: Published
MoE publication type: A2 Review article in a scientific journal
Organisations: Civil Engineering
Contributors: Juuti, P., Rajala, R.
Number of pages: 3
Pages: 15-17
Publication date: 2017
Peer-reviewed: Yes

Publication information

Journal: Vesitalous
Volume: 2017
Issue number: 1
ISSN (Print): 0505-3838
Original language: English

Research output: Contribution to journalReview ArticleScientificpeer-review

Vesi, ongelma ennen ja nyt?

General information

Publication status: Published
MoE publication type: A2 Review article in a scientific journal
Organisations: Civil Engineering
Contributors: Juuti, P.
Pages: 54-65
Publication date: May 2017
Peer-reviewed: Yes

Publication information

Journal: Ympäristöhistoria: Finnish Journal of Environmental History
Volume: 2017
Issue number: 1
ISSN (Print): 1799-6953
Original language: Finnish

Research output: Contribution to journalReview ArticleScientificpeer-review

Обзор параметрических методов позиционирования на основе концепции отпечатка пальца

General information

Publication status: Published
MoE publication type: A2 Review article in a scientific journal
Organisations: Department of Automation Science and Engineering, Research area: Dynamic Systems, Department of Mathematics, Research group: MAT Positioning, Research group: Positioning
Contributors: Müller, P., Raitoharju, M., Ali-Löytty, S., Wirola, L., Piche, R.
Pages: 3-35
Publication date: 2016
Peer-reviewed: Yes

Publication information

Journal: Giroskopiya I Navigatsiya
Volume: 24
Issue number: 1
ISSN (Print): 0869-7035
Original language: Russian

Bibliographical note

Translation of "A Survey of Parametric Fingerprint-Positioning Methods", Gyroscopy and Navigation, vol 7, issue 2, 2016, pp. 107-127.

Research output: Contribution to journalReview ArticleScientificpeer-review

Experimental moment resistance of rectangular hollow section T joints

Resistance is the main property of tubular joints. The determination of the joint resistance from the experimental load-deformation curve always represents a challenging task. Currently there are two main methods to find the experimental resistance, which are called plastic and ultimate resistance. However, there is no single opinion on which one should be commonly used. Based on the experimental results, this paper directly compares the two existed approaches. The study is restricted to welded square hollow section T joints under in-plane bending moment. The paper considers only the joints with β < 0.85, i.e. when the behaviour of the joint is governed by chord face failure. The results show that plastic resistance leads to more conservative results than ultimate resistance, providing thus safer results. However, attention should be also paid to the difference between the labour intensity of the presented methods.

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Civil Engineering
Contributors: Garifullin, M.
Publication date: 5 Dec 2018
Peer-reviewed: Yes

Publication information

Journal: MATEC Web of Conferences
Volume: 245
Article number: 08003
ISSN (Print): 2274-7214
Ratings: 
  • Scopus rating (2018): CiteScore 0.42 SJR 0.169 SNIP 0.548
Original language: English
ASJC Scopus subject areas: Chemistry(all), Materials Science(all), Engineering(all)
Electronic versions: 
Source: Scopus
Source ID: 85058463414

Research output: Contribution to journalConference articleScientificpeer-review

Quenching nematicon fluctuations via photo-stabilization

Light localization into optical spatial solitons can be achieved by launching optical beams in nonlocal nonlinear nematic liquid crystals. Such solitons often undergo undesired fluctuations of their trajectories. We demonstrate that partial polymerization in monoacrylate-doped nematic liquid crystals is effective in quenching such fluctuations in transverse space.

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Department of Physics, Research area: Optics, Research group: Nonlinear Optics, Department of Chemistry and Bioengineering, Research group: Supramolecular photochemistry
Contributors: Karimi, N., Alberucci, A., Virkki, M., Priimägi, A., Kauranen, M., Assanto, G.
Number of pages: 3
Pages: 2-4
Publication date: 31 Mar 2016
Peer-reviewed: Yes

Publication information

Journal: Photonics Letters of Poland
Volume: 8
Issue number: 1
ISSN (Print): 2080-2242
Ratings: 
  • Scopus rating (2016): CiteScore 0.37 SJR 0.197 SNIP 0.272
Original language: English

Research output: Contribution to journalLetterScientificpeer-review

Kattavasti rivitaloista

General information

Publication status: Published
MoE publication type: D1 Article in a trade journal
Organisations: School of Architecture, Research group: ASUTUT
Contributors: Helamaa, A.
Number of pages: 2
Pages: 80-81
Publication date: 2015
Peer-reviewed: Unknown

Publication information

Journal: Arkkitehti
Issue number: 3
ISSN (Print): 0783-3660
Original language: Finnish

Research output: Contribution to journalBook/Film/Article reviewProfessional

Editorial

General information

Publication status: Published
MoE publication type: B1 Article in a scientific magazine
Organisations: Department of Civil Engineering, Research area: Construction Management and Economics, Research group: Digitalization in the real estate and construction sector, Research group: Capacity Development of Water and Environmental Services CADWES, Research group: Real estate development
Contributors: Kähkönen, K., Huovinen, P., Keinänen, M.
Pages: 1-5
Publication date: 2015
Peer-reviewed: No

Publication information

Journal: Procedia Economics and Finance
Volume: 21
ISSN (Print): 2212-5671
Original language: English
ASJC Scopus subject areas: Engineering(all)

Research output: Contribution to journalEditorialScientific

Editorial: Experiments in an Organisational Context

General information

Publication status: Published
MoE publication type: B1 Article in a scientific magazine
Organisations: Industrial and Information Management, Copenhagen Business School, Mines ParisTech, London Business School
Contributors: Christiansen, J., Birkinshaw, J., Le Massaon, P., Mäkinen, S.
Number of pages: 2
Publication date: 2017
Peer-reviewed: No

Publication information

Journal: CERN IdeaSquare Journal of Experimental Innovation
Volume: 1
Issue number: 2
ISSN (Print): 2413-9505
Original language: English

Research output: Contribution to journalEditorialScientific

Editorial: Information to support decision-making

General information

Publication status: Published
MoE publication type: A1 Journal article-refereed
Organisations: Civil Engineering
Contributors: Juuti, P. S.
Pages: 5-6
Publication date: May 2017
Peer-reviewed: Yes

Publication information

Journal: Ympäristöhistoria: Finnish Journal of Environmental History
Volume: 2017
Issue number: 1
ISSN (Print): 1799-6953
Original language: English

Research output: Contribution to journalEditorialScientificpeer-review

Arkinen liikkuminen kontekstina kaupunkitilan tarkasteluun

General information

Publication status: Published
Organisations: School of Architecture
Contributors: Tartia, J.
Publication date: 2015
Peer-reviewed: No

Publication information

Journal: Versus
ISSN (Print): 2242-3443
Original language: Finnish

Research output: Contribution to journalSpecial issueScientific

8th Nordic Conference on Construction Economics and Organization

General information

Publication status: Published
MoE publication type: C2 Edited books
Organisations: Department of Civil Engineering, Research area: Construction Management and Economics, Research group: Digitalization in the real estate and construction sector, Research group: Capacity Development of Water and Environmental Services CADWES, Research group: Real estate development
Contributors: Kähkönen, K. (ed.)
Publication date: 2015
Peer-reviewed: Yes

Publication information

Journal: Procedia Economics and Finance
Volume: 21
ISSN (Print): 2212-5671
Original language: English

Research output: Contribution to journalSpecial issueScientificpeer-review

Calcium signaling in astrocytes: modeling Fura-2AM measurements

General information

Publication status: Published
Organisations: Department of Signal Processing, Research group: Computational Neuro Science-CNS
Contributors: Toivari, E., Manninen, T., Nahata, A. K., Jalonen, T. O., Linne, M.
Number of pages: 1
Publication date: 2010
Peer-reviewed: Yes

Publication information

Journal: Frontiers in Neuroscience
ISSN (Print): 1662-4548
Ratings: 
  • Scopus rating (2010): SJR 1.329 SNIP 0.733
Original language: English

Research output: Contribution to journalMeeting AbstractScientificpeer-review

A new generation sweating thermal manikin for the evaluation of the thermal comfort of protective clothing in Arctic Conditions

Working or staying in cold conditions set high demands for the garments to
sustain the thermal comfort of the wearer. The high thermal insulation needed
in cold conditions, like in Arctic areas, can cause heat stress when working in high intensity and post exercise chill while the remaining moisture in the clothing layers due to sweating increases heat loss. The thermoregulatory properties of textiles from material level to garment level can be determined with a wide selection of test methods. Hot plates, water vapour permeability tests and a sweating thermal cylinder are used for planar textiles to determine thermal comfort properties on material level to be able to select the most suitable candidates for the garments for the required end use conditions. For garment level testing, the non-movable or movable thermal or sweating thermal
manikins offer the most sophisticated objective methods. They simulate human body heat and sweat production and body movements in controlled ambient conditions for determining the thermal comfort properties either of a piece of garment or the whole clothing systems. The effect of garment design can be determined in addition to material properties.

General information

Publication status: Published
MoE publication type: B2 Part of a book or another research book
Organisations: Department of Materials Science, Research group: Fibre Materials
Contributors: Varheenmaa, M.
Number of pages: 7
Pages: 154-161
Publication date: 2015

Host publication information

Title of host publication: Arctic Wears - Perspectives on Arctic Clothing
Publisher: Lapland University of Applied Sciences
Editors: Konola, S., Kähkönen, P.
ISBN (Print): 978-952-316-085-9
ISBN (Electronic): 978-952-316-086-6

Publication series

Name: Liiketoiminta ja yrittäjyys Sarja B. Raportit ja selvitykset 10/2015
Publisher: Lapland University of Applied Sciences

Research output: Chapter in Book/Report/Conference proceedingChapterScientific

Meeting of Vernacular and Modern Architecture in Urbino: Giancarlo De Carlo and reading of the context

General information

Publication status: Published
MoE publication type: B2 Part of a book or another research book
Organisations: School of Architecture, Research group: History of Architecture
Contributors: Koponen, O.
Number of pages: 4
Pages: 26-29
Publication date: 2015

Host publication information

Title of host publication: Italian Vernadoc 2015 – Amandola : Studying Italia and its architecture. The first 10 VERNADOC-years
Place of publication: Helsinki
Publisher: Suomen ICOMOS, kansanrakentamisen komitea
Editor: Mattila, M.
ISBN (Print): 978-952-67465-9-3

Research output: Chapter in Book/Report/Conference proceedingChapterScientific

Ulkoseinien rakennusfysikaaliset riskit ja pitkäaikaiskestävät ratkaisut

General information

Publication status: Published
MoE publication type: B2 Part of a book or another research book
Organisations: Department of Civil Engineering, Research group: Building Physics
Contributors: Salonen, J., Laukkarinen, A., Vinha, J.
Number of pages: 8
Pages: 74-81
Publication date: 2015

Host publication information

Title of host publication: Korjaa ja korota : Kerrostalojen korjaamisen ja lisäkerrosten rakentamisen ratkaisuja
Volume: 62
Place of publication: Oulu, Finland
Publisher: Oulun yliopisto
Editors: Soikkeli, A., Koiso-Kanttila, J., Sorri, L.
ISBN (Print): 978-952-62-0727-8

Publication series

Name: Oulun yliopisto, arkkitehtuurin osasto. A. Julkaisu
ISSN (Electronic): 0357-8704
ASJC Scopus subject areas: Building and Construction

Research output: Chapter in Book/Report/Conference proceedingChapterScientific

Aluetehokkuuden kustannusvaikutukset

General information

Publication status: Published
MoE publication type: A3 Part of a book or another research book
Organisations: Department of Civil Engineering, Aalto University
Contributors: Nisula, J., Saari, A.
Number of pages: 6
Pages: 102-107
Publication date: 2015

Host publication information

Title of host publication: Nollaa parempi – Townhouse energiatehokkaassa asuinrakentamisessa
Publisher: Aalto-yliopisto
ISBN (Print): 978-952-60-6409-3
ISBN (Electronic): 978-952-60-6410-9

Publication series

Name: Aalto University publication series Crossover
No.: 9/2015
ISSN (Print): 1799-4950
ISSN (Electronic): 1799-4969

Research output: Chapter in Book/Report/Conference proceedingChapterScientificpeer-review

A Proposal of Decentralized Architecture for OKD-MES

Recent research work in the industrial automation field determines that the computational power of embedded devices, which is used for process control on the shop floor, is sufficient for handling new functionalities. Therefore, it becomes possible to manage knowledge that is encapsulated in embedded devices, demonstrating a decentralized solution for controlling processes at the lowest level of the ISA-95 automation pyramid. This chapter argues that part of the OKD-MES functionality can be lowered to the device level. Moreover, the presented chapter exhibits that OKD-MES representation and management of knowledge can be distributed and handled in the shop floor, where devices are capable of controlling processes that are later executed by machines. Hence, this chapter offers an alternative for the actual architecture of OKDMES, which is now centralized in terms of knowledge management. Furthermore, concepts, requirements and an early architecture for developing a decentralized OKD-MES are also shown and discussed

General information

Publication status: Published
MoE publication type: A3 Part of a book or another research book
Organisations: Department of Automation Science and Engineering, Research group: Factory automation systems technology
Contributors: Ferrer, B. R.
Number of pages: 10
Pages: 331-340
Publication date: 2015

Host publication information

Title of host publication: Open Knowledge-Driven Manufacturing & Logistics : The eScop Approach
Place of publication: Warsaw
Publisher: Warsaw University of Technology Publishing House
Editors: Strzelczak, S., Balda, P., Garetti, M., Lobov, A.
ISBN (Print): 978-83-7814-440-3

Research output: Chapter in Book/Report/Conference proceedingChapterScientificpeer-review

Classification of Knowledge Representation Implementations in the Manufacturing Systems Domain

Ontologies are presented as a powerful mechanism for integration of components that are located in different levels of the ISA-95 automation pyramid, which is widely known in the industrial automation domain. Hence, the development of systems that use knowledge representation is a feasible manner for the reduction of efforts, e.g. in vertical communication implementation. This kind of research is challenging because of the quantity of cross-layer information exchange. In fact, as industrial automation systems are, by nature, dynamic, process control components must be capable of adapting fast to changes. Furthermore, reconfiguration of scalable systems can be automated through ontology modeling. This chapter presents an investigation on how representation of knowledge is utilized in different industrial automation developments. In addition, main concepts and requirements for designing knowledge representation implementations are identified and described. Finally, according to this description, a classification of distinct implementations is also presented.

General information

Publication status: Published
MoE publication type: A3 Part of a book or another research book
Organisations: Department of Automation Science and Engineering, Research group: Factory automation systems technology
Contributors: Ramis Ferrer, B.
Number of pages: 10
Pages: 235-244
Publication date: 2015

Host publication information

Title of host publication: Open Knowledge-Driven Manufacturing & Logistics : The eScop Approach
Publisher: Warsaw University of Technology Publishing House
Editors: Strzelczak, S., Balda, P., Garetti, M., Lobov, A.
ISBN (Print): 978-83-7814-440-3

Research output: Chapter in Book/Report/Conference proceedingChapterScientificpeer-review

Crowdsourcing in Business-to-Business Markets: A Value Creation and Business Model Perspective

The foundation for the analysis of this chapter builds on the value creation model of Amit and Zott (2001), where they studied the importance of sources of value creation in the field of electronic business. This model was chosen for the purposes of this study because it is developed from fundamental value creation models and dominates concerning value creation in e-business, of which crowdsourcing by utilizing social media tools represents also. Moreover, Amit and Zott’s business model (2001, p. 511), which focuses on e-business for B2C companies, can be adapted for all virtual markets in general, and also applies to B2B companies (2006, p. 20). Most importantly, the model enables to analyze the relations between value creation and business model. In next, the theoretical background of value creation is opened up especially in the context of business-to-business markets, and furthermore, the model of Amit and Zott (2001) is presented. Lastly, crowdsourcing in business-to-business markets as the research context of the present study is discussed.

General information

Publication status: Published
MoE publication type: A3 Part of a book or another research book
Organisations: Department of Information Management and Logistics, Research group: Novi, Managing digital industrial transformation (mDIT)
Contributors: Bernhardt, J., Helander, N., Jussila, J., Kärkkäinen, H.
Number of pages: 11
Pages: 933-943
Publication date: Apr 2016

Host publication information

Title of host publication: Encyclopedia of E-Commerce Development, Implementation, and Management
Place of publication: United States
Publisher: IGI Global
Article number: 66
ISBN (Print): 978-1-4666-9787-4

Research output: Chapter in Book/Report/Conference proceedingChapterScientificpeer-review

Effects of Social Media on Consumers' Sports Brand Experiences and Loyalty

Brand experience has been noted as a key attribute affecting buying behavior. Although research into the determinants of brand loyalty in sport context has grown in recent years, the focus has predominantly been on brand experience, brand personality and satisfaction, not on social media variables. In addition, we lack empirically verified evidence of the brand experience and brand loyalty relationship mediated through brand identification. In this research the authors address the role of four different social media platforms and how they drive brand loyalty through different types of brand experiences, brand identification and satisfaction to the brand experience. Structural equation modelling is used to test the model based on data from a survey of 815 ice hockey fans of a particular ice hockey team. The results show that brand experience is positively affected by brand engagement in social media and the relationship is strengthened when more different social media platforms are used for following the brand. Brand experience affects brand loyalty mainly indirectly through brand identification and satisfaction constructs.

General information

Publication status: Published
MoE publication type: A3 Part of a book or another research book
Organisations: Industrial and Information Management
Contributors: Munnukka, J., Karjaluoto, H., Mahlamäki, T., Hokkanen, V.
Number of pages: 14
Pages: 1051-1064
Publication date: 2017

Host publication information

Title of host publication: Creating Marketing Magic and Innovative Future Marketing Trends : Proceedings of the 2016 Academy of Marketing Science (AMS) Annual Conference
Publisher: Springer International Publishing
Editor: Stieler, M.
ISBN (Print): 978-3-319-45596-9

Publication series

Name:  Developments in Marketing Science: Proceedings of the Academy of Marketing Science
ISSN (Print): 2363-6165

Bibliographical note

jufoid=85075

Source: Bibtex
Source ID: urn:531c45abc12e7076a1ecfdb73d8ebcbb

Research output: Chapter in Book/Report/Conference proceedingChapterScientificpeer-review

Framework for optimization and scheduling of a copper production plant

This work presents a nonlinear optimization and scheduling approach applied to a copper production plant. The solution maximizes smelting furnace production and provides valid converting schedules by simulating the evolution of the process over the optimization horizon. The production process is briefly described and the main models used to predict and calculate furnace and converter parameters are detailed. Though the solution is concentrated on the main elements, copper and iron, the optimization framework enables easy future augmentation with more complex models. A schedule optimization case is presented.

General information

Publication status: Published
MoE publication type: A3 Part of a book or another research book
Organisations: Department of Automation Science and Engineering, Research area: Dynamic Systems, Research area: Measurement Technology and Process Control
Contributors: Suominen, O., Mörsky, V., Ritala, R., Vilkko, M.
Number of pages: 6
Pages: 1243-1248
Publication date: 25 Jun 2016

Host publication information

Title of host publication: 26th European Symposium on Computer Aided Process Engineering, 2016
Volume: 38
Publisher: Elsevier Science B.V.
ISBN (Print): 9780444634283

Publication series

Name: Computer Aided Chemical Engineering
ISSN (Print): 1570-7946
ASJC Scopus subject areas: Chemical Engineering(all), Computer Science Applications
Keywords: copper smelting, modelling, nonlinear optimization, Scheduling

Bibliographical note

JUFOID=70254

Source: Scopus
Source ID: 84994385954

Research output: Chapter in Book/Report/Conference proceedingChapterScientificpeer-review

Functional model for organisational and safety culture

Cultures are usually defined as shared values, attitudes and behaviour of certain group. The core of culture is inside person's mind. Only through behaviour or other actions of persons the culture becomes visible and shareable. Cultural artefacts and all other perceptible signs of culture are formed through action. From this perspective culture requires functionality. It does not exist nor spread without activity of individuals. In systems theory there is a methodological distinction between theoretical system and empirical system. Theoretical system "is a complex of concepts, suppositions, and propositions having both logical integration and empirical reference". Empirical system is "a set of phenomena in the observable world that is amenable to description and analysis by means of a theoretical system". However, in cultural context, theoretical models usually describe only properties of the empirical system. Usually the functionality of the culture is left undefined. Therefore theoretical models may have flaws in their ability to describe the functionality of the culture, which is essential part of the culture. In this paper we use a novel functional model to explore the functionality of the most commonly used culture models. We inspect Schein's organizational culture model, Cooper's reciprocal safety culture model and Johnson's cultural web. We study them and their functionality with our own functional model, which integrates person to sociotechnical system and shows person-sociotechnical system interaction. This study clearly shows that if culture's basis is in shared mental models, then the question whether organization is or has culture is absurd. As Antonsen has pointed out certain mandatory organizational features are clearly structural and not cultural. We also emphasize the behavioural aspect when defining cultural issues. The shared mental model alone is not sufficient requirement to define a feature as a cultural artefact, nor is the behaviour all employees share. Behaviour or action is cultural artefact only when the members of the culture have truly free will to choose their behaviour.

General information

Publication status: Published
MoE publication type: A3 Part of a book or another research book
Organisations: Pori Department
Contributors: Porkka, P. L.
Number of pages: 6
Pages: 907-912
Publication date: 2016

Host publication information

Title of host publication: Chemical Engineering Transactions
Publisher: Italian Association of Chemical Engineering AIDIC
ISBN (Print): 9788895608396

Publication series

Name: Chemical Engineering Transactions
Volume: 48
ISSN (Electronic): 2283-9216
ASJC Scopus subject areas: Chemical Engineering(all)

Bibliographical note

JUFOID=70222

Source: Scopus
Source ID: 84976878615

Research output: Chapter in Book/Report/Conference proceedingChapterScientificpeer-review

Glass and Glass-Ceramic Scaffolds: Manufacturing Methods and the Impact of Crystallization on In-Vitro Dissolution

General information

Publication status: Published
MoE publication type: A3 Part of a book or another research book
Organisations: Faculty of Biomedical Sciences and Engineering, Research group: Biomaterials and Tissue Engineering Group
Contributors: Nommeots-Nomm, A., Massera, J.
Number of pages: 19
Publication date: 2017

Host publication information

Title of host publication: Scaffolds in Tissue Engineering - Materials, Technologies and Clinical Applications
Publisher: InTech Open Access Publisher
ISBN (Electronic): 978-953-51-3642-2

Research output: Chapter in Book/Report/Conference proceedingChapterScientificpeer-review

icellfusion: Tool for fusion and analysis of live-cell images from time-lapse multimodal microscopy

Temporal, multimodal microscopy imaging of live cells is becoming widely used in studies of cellular processes. In general, temporal sequences of images with functional and morphological data from live cells are acquired using multiple image sensors. The images from the different sources usually differ in resolution and have non-coincident fields of view, making the merging process complex. We present a new tool - iCellFusion - that performs data fusion of images from Phase-Contrast Microscopy and Fluorescence Microscopy in order to correlate the information on cell morphology, lineage and functionality. Prior to image fusion, iCellFusion performs automatic or computer-aided cell segmentation and establishes cell lineages. We exemplify its usage on time-lapse, multimodal microscopy images of bacteria producing fluorescent spots. We expect iCellFusion to assist research in Cell and Molecular Biology and the healthcare sector, where live-cell imaging is an increasingly important technique to detect and study diseases at the cellular level.

General information

Publication status: Published
MoE publication type: A3 Part of a book or another research book
Organisations: Signal Processing, Research group: Laboratory of Biosystem Dynamics-LBD, Instituto de Desenvolvimento de Novas Tecnologias
Contributors: Santinha, J., Gupta, A., Martins, L., Annila, T., Häkkinen, A., Mora, A., Lloyd-Price, J., Ribeiro, A., Oliveira, S. M. D., Fonseca, J. R.
Number of pages: 29
Pages: 806-834
Publication date: 30 Aug 2016

Host publication information

Title of host publication: Biometrics: Concepts, Methodologies, Tools, and Applications
Publisher: IGI Global
ISBN (Print): 9781522509837
ISBN (Electronic): 9781522509844
ASJC Scopus subject areas: Computer Science(all)
Source: Scopus
Source ID: 85015879219

Research output: Chapter in Book/Report/Conference proceedingChapterScientificpeer-review

Impact analysis of graph-based requirements models using PageRank algorithm

Managing requirements changes of complex systems and the potential impact of such changes represents a big issue for companies. Currently, commercial modelers propose tools for analyzing the direct impact of requirements changes on system design or code but the analysis of requirement change on other requirements remains seldom studied. This paper proposes an approach for the impact analysis of changes in requirements combined with a ranking of importance of requirements in graph based requirements network. Warshall algorithm is used in this paper for performing the impact analysis. Along with this approach, PageRank algorithm is used for ranking requirements according to their importance. Requirements hierarchy and their textual description of importance are considered as input for calculating their impact as well as their importance within the network of requirements. This combination of Warshall and PageRank algorithms provide significant results for helping designers in decision-making process of modifying requirements for future design versions.

General information

Publication status: Published
MoE publication type: A3 Part of a book or another research book
Organisations: Intelligent dexterity for secure networked infrastructure and applications (IDSNIA), Aalto Univ, Aalto University, Aalto Univ Finland, Dept Engn Design & Prod, Sch Engn
Contributors: Mokammel, F., Coatanea, E., Bakhouya, M., Christophe, F., Nonsiri, S.
Number of pages: 6
Pages: 731-736
Publication date: Apr 2013

Host publication information

Title of host publication: 2013 IEEE International Systems Conference (SysCon)
Publisher: IEEE
ISBN (Print): 978-1-4673-3108-1

Publication series

Name: 2013 IEEE International Systems Conference (SysCon)
Keywords: Complex system, Graph theory PageRank algorithm, Impact changes analysis, PageRank algorithm, Requirements management, Warshall algorithm, complex systems, decision making, decision-making process, design engineering, formal specification, graph based requirements network, graph theory, graph-based requirements models, impact analysis, importance textual description, large-scale systems, requirement change management, requirements hierarchy, system design
Source: Mendeley
Source ID: bd838215-a552-3824-ba9b-f763eec0af4f

Research output: Chapter in Book/Report/Conference proceedingChapterScientificpeer-review

Jossakin vuoti öljy, muualla tihkuivat tiedot - etiikka katoavien rajojen ja suurten skandaalien aikakaudella

General information

Publication status: Published
MoE publication type: A3 Part of a book or another research book
Organisations: Pori Department
Contributors: Lilja, K.
Number of pages: 16
Pages: 85-101
Publication date: 2015

Host publication information

Title of host publication: Silmät auki It-etiikkaan
Publisher: EDUSKUNNAN TULEVAISUUSVALIOKUNTA
ISBN (Print): 978-951-53-3581-4
ISBN (Electronic): 978-951-53-3582-1

Publication series

Name: Eduskunnan tulevaisuusvaliokunnan julkaisu
Publisher: Tulevaisuusvaliokunta
No.: 12
ISSN (Print): 2342-6594
ISSN (Electronic): 2342-6608

Bibliographical note

AUX=pla,"Lilja, Kari"

Research output: Chapter in Book/Report/Conference proceedingChapterScientificpeer-review

Learning maths with mobiles: Cross-cultural design of technology with experiences in South-Africa and Finland

This chapter presents an overview of our experiences on cross-cultural design of technology in the context of mobile learning focusing on supporting learners to study mathematics in two different countries. The aim of our study is to discuss design issues from the perspective of two different types of cultures and reflect culturally sensitive issues based on a longitudinal study, which included empirical data from altogether over 3500 learners of grades 9 and 10. As a result we outline two focus areas: content and concept for best design practices. Furthermore, we argue that cross-cultural design of technology can help to identify culturally sensitive areas such as attitudes towards informal and collaborative learning and recognizing the local context for the content. Cross-cultural design of technology supports development of good user experience of mobile learning services for different local learning contexts.

General information

Publication status: Published
MoE publication type: A3 Part of a book or another research book
Organisations: Department of Pervasive Computing, Research area: User experience
Contributors: Vainio, T., Walsh, T.
Number of pages: 18
Pages: 79-96
Publication date: 13 Jul 2015

Host publication information

Title of host publication: Integrating Touch-Enabled and Mobile Devices into Contemporary Mathematics Education
Publisher: IGI Global
ISBN (Print): 9781466687158
ISBN (Electronic): 9781466687141
ASJC Scopus subject areas: Social Sciences(all)

Bibliographical note

EXT="Vainio, Teija"

Source: Scopus
Source ID: 84957956201

Research output: Chapter in Book/Report/Conference proceedingChapterScientificpeer-review

Learning Maths with mobiles: Cross-cultural design of technology with experiences in South-Africa and Finland

This chapter presents an overview of our experiences on cross-cultural design of technology in the context of mobile learning focusing on supporting learners to study mathematics in two different countries. The aim of our study is to discuss design issues from the perspective of two different types of cultures and reflect culturally sensitive issues based on a longitudinal study, which included empirical data from altogether over 3500 learners of grades 9 and 10. As a result we outline two focus areas: content and concept for best design practices. Furthermore, we argue that cross-cultural design of technology can help to identify culturally sensitive areas such as attitudes towards informal and collaborative learning and recognizing the local context for the content. Cross-cultural design of technology supports development of good user experience of mobile learning services for different local learning contexts.

General information

Publication status: Published
MoE publication type: A3 Part of a book or another research book
Organisations: Pervasive Computing
Contributors: Vainio, T., Walsh, T.
Number of pages: 19
Pages: 741-759
Publication date: 18 Aug 2016

Host publication information

Title of host publication: Blended Learning: Concepts, Methodologies, Tools, and Applications
Volume: 4
Publisher: IGI Global
ISBN (Print): 9781522507833
ISBN (Electronic): 9781522507840
ASJC Scopus subject areas: Social Sciences(all), Computer Science(all)

Bibliographical note

EXT="Vainio, Teija"

Source: Scopus
Source ID: 85016852656

Research output: Chapter in Book/Report/Conference proceedingChapterScientificpeer-review

Nanocellulose as a Piezoelectric Material

Cellulose-based nanomaterials, which are generally known as nanocelluloses, are interesting renewable biomaterials which have potential applications for example in material science, electronics and biomedical engineering and diagnostics. Cellulose has a strong ability to form lightweight, highly porous and entangled networks that make nanocellulose suitable as substrate or membrane material. Recently, also studies related to piezoelectric behavior of nanocellulose have been published. The piezoelectricity of wood was proposed already in 1955 by Eiichi Fukada, but only very slightly studied since then. Here, we show the experimental evidence of significant piezoelectric activity of different types of nanocellulose films. Wood-based cellulose nanofibril (CNF) and cellulose nanocrystals (CNC) films, and bacterial nanocellulose (BC) films have been studied. The recent results suggest that nanocellulose is a potential bio-based piezoelectric sensor material.

General information

Publication status: Published
MoE publication type: A3 Part of a book or another research book
Organisations: Faculty of Biomedical Sciences and Engineering, Nokia Technologies
Contributors: Tuukkanen, S., Rajala, S.
Number of pages: 14
Pages: 1-14
Publication date: 29 Aug 2018

Host publication information

Title of host publication: Piezoelectricity - Organic and Inorganic Materials and Applications
Publisher: InTech Open Access Publisher
ISBN (Electronic): 978-953-51-6209-4

Research output: Chapter in Book/Report/Conference proceedingChapterScientificpeer-review

On Polyglot Programming in the Web

Different programming languages have been designed to solve problems efficiently in different domains. The goal of polyglot programming, a technique where several languages are used in the creation of a single application, is to combine and utilize the best solutions from different programming languages and paradigms in a seamless fashion. In this paper, the authors examine polyglot programming in the context of web applications, where it has been commonly used to create compelling applications, but where there is still considerable potential to improve development in various ways.

General information

Publication status: Published
MoE publication type: A3 Part of a book or another research book
Organisations: Department of Pervasive Computing, Research area: Software engineering, Ada Drive
Contributors: Harmanen, J., Mikkonen, T.
Number of pages: 18
Pages: 102-119
Publication date: 2016

Host publication information

Title of host publication: Modern Software Engineering Methodologies for Mobile and Cloud Environments
Publisher: IGI Global
ISBN (Print): 9781466699168
ISBN (Electronic): 9781466699175

Research output: Chapter in Book/Report/Conference proceedingChapterScientificpeer-review

On service composition - dynamic formation and orchestration of service workflows

Service-oriented approach to system engineering makes engineers to rethink the way to build and maintain a system. Use of Web Service technologies enables to remove rigid connections between software components to reassemble them dynamically at run-time according to the actual needs of applications. Such an approach can in some cases provide additional necessary functionality, which may not have been envisioned at the design time. This chapter presents an approach to orchestration allowing dynamic formation of service hierarchies in in-line with production needs, which allows tracking on all the existing service workflows. Hence the locus of control for the overall system is kept. The use of eScop Manufacturing System Ontology (MSO) for orchestration purposes is also proposed to keep the track on orchestration workflows.

General information

Publication status: Published
MoE publication type: A3 Part of a book or another research book
Organisations: Department of Automation Science and Engineering, Research group: Factory automation systems technology
Contributors: Lobov, A.
Number of pages: 9
Pages: 311-319
Publication date: 2015

Host publication information

Title of host publication: Open Knowledge-Driven Manufacturing and Logistics - The eScop Approach
Publisher: Warsaw University of Technology Publishing House
Editors: Strzelczak, S., Balda, P., Garetti, M., Lobov, A.
ISBN (Print): 978-83-7814-440-3

Research output: Chapter in Book/Report/Conference proceedingChapterScientificpeer-review

OSS-TMM: Guidelines for improving the testing process of open source software

Open Source Software (OSS) products do not usually follow traditional software engineering development paradigms. Specifically, testing activities in OSS development may be quite different from those carried out in Closed Source Software (CSS) development. As testing and verification require a good deal of resources in OSS, it is necessary to have ways to assess and improve OSS testing processes. This paper provides a set of testing guidelines and issues that OSS developers can use to decide which testing techniques make most sense for their OSS products. This paper 1) provides a checklist that helps OSS developers identify the most useful testing techniques according to the main characteristics of their products, and 2) outlines a proposal for a method that helps assess the maturity of OSS testing processes. The method is a proposal of a Maturity Model for testing processes (called OSS-TMM). To show its usefulness, the authors apply the method to seven real-life projects. Specifically, the authors apply the method to BusyBox, Apache Httpd, and Eclipse Test and Performance Tools Platform to show how the checklist supports and guides the testing process of these OSS products.

General information

Publication status: Published
MoE publication type: A3 Part of a book or another research book
Organisations: Università degli Studi Dell'Insubria, Former organisation of the author
Contributors: Morasca, S., Taibi, D., Tosi, D.
Number of pages: 20
Pages: 59-78
Publication date: 28 Feb 2013

Host publication information

Title of host publication: Open Source Software Dynamics, Processes, and Applications
Publisher: IGI Global
ISBN (Print): 1466629371, 9781466629370
ISBN (Electronic): 9781466629387
ASJC Scopus subject areas: Computer Science(all)
Source: Scopus
Source ID: 84944882361

Research output: Chapter in Book/Report/Conference proceedingChapterScientificpeer-review

Probabilistic Framework for Modelling the Evolution of Geomorphic Features in 10,000-Year Time Scale: The Eurajoki River Case

In this paper the long-term evolution of the catchment area of Eurajoki River, situated in Western Finland, is studied. The modelling area, nearly 1000 km2 in size, is at present mostly covered by sea. Probabilistic digital elevation model and land uplift model form the basis for the future catchment area modelling. A land uplift model is required due to the ongoing post-glacial rebound especially in the western parts of Finland. The maximum rate of land uplift in Finland is 1 cm per year while in the modelling area the land uplift rate is about 6 mm per year. The digital elevation model and land uplift model have been calculated using Monte Carlo simulation where the uncertainties in the source data have been taken into account. The probabilistic nature of these models enables also the river catchment area and river network analyses probabilistically. The analyses are done for the next 10,000 years in 1000-year intervals and 100 realizations are estimated for each time point. The results show that the catchment area expands towards the west as the land rises. An alternative river branch flowing northwards from the main course will form with a significant probability. Also, a delta area with multiple river branches is expected to form at about 7000 years after present.

General information

Publication status: Published
MoE publication type: A3 Part of a book or another research book
Organisations: Pori Department, Research group: Data-analytics and Optimization
Contributors: Pohjola, J., Turunen, J., Lipping, T., Ikonen, A. T.
Pages: 369-382
Publication date: 2016

Host publication information

Title of host publication: Geospatial Data in a Changing World : Selected papers of the 19th AGILE Conference on Geographic Information Science
Publisher: Springer Verlag
ISBN (Print): 978-3-319-33782-1
ISBN (Electronic): 978-3-319-33783-8

Publication series

Name: Lecture Notes in Geoinformation and Cartography
ISSN (Print): 1863-2246

Bibliographical note

JUFOID=82325

Research output: Chapter in Book/Report/Conference proceedingChapterScientificpeer-review

Quality evaluation on of contractor’s schedule for building renovation

In building and construction projects, the phase schedule developed by the contractor for the bidding phase, or after the contract award, has to be evaluated by owner’s consultant for schedule approval. After approval, the phase schedule becomes the baseline for project control process and therefore it becomes very important to both owner and contractor to ensure that contract obligations will be respected. The baseline schedule developed by the contractor is frequently used by project supervisors or construction managers to justify (or deny) a request of time extensions, or to evaluate process efficiency and the possibility of late completion, and therefore can have major consequences in project cost management.
In the owner’s perspective, three are the main requirements to be fulfilled in a baseline schedule. Firstly, the construction total duration, i.e. contract time requirements about milestones and project completion. Secondly, baseline schedule entails the promised average process production rate that should fulfill contract requirements for progress payments. Thirdly, the construction safety coordination requirement, i.e. the compliance of the schedule with the safety – oriented project schedule developed by the safety coordinator (under the health and safety EU directive). In addition to this, the review of the phase schedule should give evidence of the quality of the schedule itself, i.e. give proof of its validness.
In the research behind this paper, a Schedule Health Assessment procedure has been proposed for the evaluation of the schedule quality, and it is suggested to adopt the Schedule Health Assessment approach for the contractor’s schedule review and approval. A case study of a renovation building project has been analyzed to test the proposed procedure and the possibility of using it for contractor’s schedule approval in design-bid-build or design – build projects.

General information

Publication status: Published
MoE publication type: A3 Part of a book or another research book
Organisations: Civil Engineering, Research area: Construction Management and Economics, Research group: Digitalization in the real estate and construction sector, Research group: Capacity Development of Water and Environmental Services CADWES, Research group: Real estate development
Contributors: Kähkönen, K., Brandt, J.
Number of pages: 10
Pages: 175-184
Publication date: 1 Aug 2017

Host publication information

Title of host publication: Re‐shaping the construction industry
Publisher: ISTeA Italian Society of Science, Technology and Engineering of Architecture; Maggioli Editore
Editors: Ciribini , A., Alaimo , G., Capone , P., Daniotti , B., Dell’Osso , G., Nicolella , M.
ISBN (Electronic): 978-88-916-2486-4

Research output: Chapter in Book/Report/Conference proceedingChapterScientificpeer-review

Reinventing organisational creativity and innovation through adapting a service-based working culture

General information

Publication status: Published
MoE publication type: A3 Part of a book or another research book
Organisations: Department of Information Management and Logistics
Contributors: Ketonen-Oksi, S.
Number of pages: 20
Pages: 1-20
Publication date: 2017

Host publication information

Title of host publication: Integrating arts and creativity into business practice
Publisher: IGI Global
Editors: Schiuma, G., Lerro, A.
ISBN (Electronic): 978-1-5225-2050-4

Research output: Chapter in Book/Report/Conference proceedingChapterScientificpeer-review

Re-inventing organizational creativity and innovation through adopting a service-based working culture

By considering creativity to be a necessity for organisational competitiveness in today's rigorously changing working environments, this study seeks to examine whether adopting a service-based working culture could significantly improve organisational creativity and innovation. Grounded on the concepts of the Service-Dominant Logic and Complex Adaptive Systems, this research develops on understanding of the complexity of the emerging socially and digitally connected networks of individuals, teams and institutions. By introducing a novel framework for facilitating and improving the adaptability of a service-based working culture, this study offers both deliberation and practical advice for business organisations seeking valuable insight into how to develop and manage organisational creativity and innovation in increasingly digitalised service ecosystems. Specifically, the proposed framework encourages organisations to invest in the learning capacities and motivations of their employees.;

General information

Publication status: Published
MoE publication type: A3 Part of a book or another research book
Organisations: Industrial and Information Management
Contributors: Ketonen-Oksi, S.
Number of pages: 20
Pages: 1-20
Publication date: 28 Dec 2016

Host publication information

Title of host publication: Integrating Art and Creativity into Business Practice
Publisher: IGI Global
ISBN (Print): 9781522520504
ISBN (Electronic): 9781522520511
ASJC Scopus subject areas: Arts and Humanities(all), Economics, Econometrics and Finance(all), Business, Management and Accounting(all)
Source: Scopus
Source ID: 85016922803

Research output: Chapter in Book/Report/Conference proceedingChapterScientificpeer-review

Technical suitability of the fine fraction of municipal solid waste incineration bottom ash to the landfill capping liner

To protect the natural aggregates and promote the circular economy the suitable secondary aggregates have been studied intensively in last decades in Finland. One promising secondary aggregate is bottom ash from the municipal solid waste incineration (MSWI) process.
The municipal incinerator bottom ash (MIBA, also called MSWI BA) contains heavy metals and other contaminants limiting its environmental acceptability. The fines contain typically the highest concentrations of contaminants. The portion of inert particles such as rock, glass and mineral waste is higher in coarser fractions.
The aim of the study was to assess the suitability of the fines of MIBA to the mineral liner in landfill capping. Based on the environmental permit, the target permeability value for capping liner is k ≤ 1 · 10-9 m/s. The permeability of the fines of MIBA is typically around 1 · 10-7 m/s when well compacted. In order to achieve the required permeability, bentonite or other additivies are needed. The grains are porous and the pH is high, typically 10-12, which effect on the amount of bentonite required. In addition, the MIBA contain high concentrations of diluting chlorides, sulfides and calcium, which decrease the swelling properties of the bentonite. The swelling capacity of bentonite decreases when permeating aggressive leakages with high cation concentration. Therefore a special polymer treated bentonite were chosen for the tests. The addition of superabsorbent polymers, which have much higher resistance to aggressive leakages, greatly improve the performance and self-healing capacity of bentonite.
First, laboratory tests were performed to estimate the proper amount and quality of the bentonite needed to achieve the permeability required. Two bentonite types were tested, the common natural bentonite and a special polymer modified bentonite produced by Cetco. The swelling index of both types of bentonite were tested by a eluate of MIBA. Several permeability tests were performed to evaluate the effect of dry density, bentonite quality and dose, and portion of coarser grains (2-5 mm).
After laboratory testing, a test area was constructed on an old waste fill to the Ämmässuo. During the construction, it was noticed that the water content effects significantly on the compaction result. The mineral liner was covered by a 1,5 mm thick LLDPE geomembrane and protective geotextile. The liner structure is covered only by a 0,5 m thick drainage layer from crushed rock. No surface layer were constructed.
After one year, the liner was exposed and studied. The quality of the structures, especially the mineral liner were visually evaluated and gas emissions were measured from the surface. The density of the layer was measured by volymeter and troxler and the water content and permeability were measured in laboratory. Based on the visual inspection the surface of the mineral liner was smooth, and the layer homogenious and hardened

General information

Publication status: Published
MoE publication type: A3 Part of a book or another research book
Organisations: Civil Engineering, Research group: Earth Constructions
Contributors: Leppänen, M., Sarkkila, J., Hämäläinen, H., Rinkinen, J.
Pages: 168-175
Publication date: 6 Jun 2018

Host publication information

Title of host publication: Proceedings of the 10th International Conference on the Environmental and Technical Implications of Construction with Alternative Materials WASCON 2018 : No Gradle, No Grave - Circular Economy into Practice
Publisher: RIL - Finnish Association of Civil Engineers
Editors: Raasakka, V., Lahtinen, P.
ISBN (Electronic): 978-951-758-631-3
Keywords: municipal solid waste bottom slag, Landfill cover, bentonite, chemical incompability

Research output: Chapter in Book/Report/Conference proceedingChapterScientificpeer-review

The New Era of Crowdsourcing — Industrial Crowdsourcing

General information

Publication status: Published
MoE publication type: A3 Part of a book or another research book
Organisations: Department of Information Management and Logistics, Research group: Novi, Managing digital industrial transformation (mDIT), DIGILE – Finnish Center for Science and Innovation in the Internet Economy
Contributors: Kärkkäinen, H., Jussila, J., Erkinheimo, P.
Number of pages: 7
Pages: 25-31
Publication date: 2015

Host publication information

Title of host publication: Open Innovation Yearbook 2015
Place of publication: Brussel
Publisher: European Commission
Editor: Salmelin, B.
ISBN (Electronic): 978-92-79-43962-9
Keywords: crowdsourcing, industrial crowdsourcing

Research output: Chapter in Book/Report/Conference proceedingChapterScientificpeer-review

The use of mathematical modeling for the development of a low cost fuzzy gain schedule neutralization control system

General information

Publication status: Published
MoE publication type: A3 Part of a book or another research book
Organisations: Automation and Hydraulic Engineering, Faculty of Biomedical Sciences and Engineering, Federal Institute of São Paulo, Universidade Estadual de Campinas, Federal University of Uberlândia
Contributors: Sislian, R., da Silva, F. V., Gedraite, R., Jokinen, H., Rajan, D. K.
Number of pages: 15
Pages: 525-539
Publication date: 4 Feb 2017

Host publication information

Title of host publication: Transactions on Engineering Technologies : World Congress on Engineering and Computer Science 2015
Publisher: Springer Singapore
ISBN (Print): 9789811027161
ISBN (Electronic): 9789811027178
ASJC Scopus subject areas: Medicine(all), Biochemistry, Genetics and Molecular Biology(all), Immunology and Microbiology(all)
Source: Scopus
Source ID: 85055224030

Research output: Chapter in Book/Report/Conference proceedingChapterScientificpeer-review

Tools, pedagogical models, and best practices for digital storytelling

Sharing photos and short videos with others has become increasingly popular among youth. Although sharing videos is a common activity among youth, schools are not using digital videos for learning. There is a need to study the pedagogical models that could be used in designing classroom activities involving the use of digital videos. In this chapter, digital video storytelling will be discussed in the context of learning. In this chapter, pedagogical models, examples, best practices, and outcomes that illustrate how students become engaged and motivated when using digital storytelling in knowledge creation in cross-cultural settings will be presented. The pedagogical models discussed in this chapter are Global Sharing Pedagogy (GSP) and Video Inquiry Learning (VIL). A review of existing tools and practices for digital video storytelling will be presented. The results show that students can become highly engaged in learning through digital storytelling.

General information

Publication status: Published
MoE publication type: A3 Part of a book or another research book
Organisations: Research group: TUT Game Lab, Pervasive Computing, University of Helsinki
Contributors: Multisilta, J., Niemi, H.
Publication date: Jul 2017

Host publication information

Title of host publication: Encyclopedia of information science and technology
Publisher: IGI Global
Editor: Khosrow-Pour, M.
Edition: 4th
ISBN (Electronic): 9781591405535

Research output: Chapter in Book/Report/Conference proceedingChapterScientificpeer-review

Townhouse-talotyypin rakennuskustannukset: kolmen suunnitteluratkaisun taloudellisuuden analysointi

General information

Publication status: Published
MoE publication type: A3 Part of a book or another research book
Organisations: Department of Civil Engineering
Contributors: Saari, A., Tauriainen, M.
Number of pages: 4
Pages: 94-97
Publication date: 2015

Host publication information

Title of host publication: Nollaa parempi – Townhouse energiatehokkaassa asuinrakentamisessa
Publisher: Aalto-yliopisto
ISBN (Print): 978-952-60-6409-3
ISBN (Electronic): 978-952-60-6410-9

Publication series

Name: Aalto University publication series Crossover
No.: 9/2015
ISSN (Print): 1799-4950
ISSN (Electronic): 1799-4969

Research output: Chapter in Book/Report/Conference proceedingChapterScientificpeer-review

Two models for hydraulic cylinders in flexible multibody simulations

In modelling hydraulic cylinders interaction between the structural response and the hydraulic system needs to be taken into account. In this chapter two approaches for modelling flexible multibody systems coupled with hydraulic actuators i.e. cylinders are presented and compared. These models are the truss-elementlike cylinder and bending flexible cylinder models. The bending flexible cylinder element is a super-element combining the geometrically exact Reissner-beam element, the C1-continuous slide-spring element needed for the telescopc movement and the hydraulic fluid field. Both models are embeded with a friction model based on a bristle approach. The models are implemented in a finite element enviroment. In time the coupled stiff differential equation system is integrated using the L-stable Rosenbrock method.

General information

Publication status: Published
MoE publication type: A3 Part of a book or another research book
Organisations: Department of Civil Engineering, Research group: Structural Mechanics, Department of Mechanical Engineering and Industrial Systems, Research area: Applied Mechanics, FS Dynamics Finland Oy Ab
Contributors: Ylinen, A., Mäkinen, J., Kouhia, R.
Number of pages: 31
Pages: 463-493
Publication date: 2016

Host publication information

Title of host publication: Computational Methods for Solids and Fluids : Multiscale Analysis, Probability Aspects and Model Reduction
Publisher: Springer
ISBN (Print): 978-3-319-27994-7
ISBN (Electronic): 978-3-319-27996-1

Publication series

Name: Computational Methods in Applied Sciences
Volume: 41
ISSN (Print): 1871-3033
ASJC Scopus subject areas: Computational Mathematics, Modelling and Simulation, Fluid Flow and Transfer Processes, Computer Science Applications, Civil and Structural Engineering, Electrical and Electronic Engineering, Biomedical Engineering

Bibliographical note

JUFOID=79940
EXT="Ylinen, Antti"

Source: Scopus
Source ID: 84964233721

Research output: Chapter in Book/Report/Conference proceedingChapterScientificpeer-review

Water services heritage and institutional diversity

General information

Publication status: Published
MoE publication type: A3 Part of a book or another research book
Organisations: Department of Civil Engineering, Research group: Industrial Bioengineering and Applied Organic Chemistry
Contributors: Katko, T. S., Juuti, P., Pietilä, P., Rajala, R.
Publication date: 2015

Host publication information

Title of host publication: Water and Heritage: material, conceptual and spiritual connections
Publisher: Sidestone Press
Editors: Willems, W., van Schaik, H.
ISBN (Print): 9789088902789

Research output: Chapter in Book/Report/Conference proceedingChapterScientificpeer-review

How to co-learn in campus.

General information

Publication status: Published
MoE publication type: D2 Article in professional manuals or guides or professional information systems or text book material
Organisations: Department of Civil Engineering, Research group: Digitalization in the real estate and construction sector
Contributors: Salmisto, A.
Number of pages: 18
Pages: 320-337
Publication date: 2015

Host publication information

Title of host publication: Oppiva kampus - How to co-create campus?
Place of publication: Tampere
Publisher: Suomen Yliopistokiinteistöt Oy
Editors: Nenonen, S., Kärnä, S., Junnonen, J., Tähtinen, S., Sandström, N.
ISBN (Print): 978-952-15-3478-2
ISBN (Electronic): 978-952-15-3479-9

Research output: Chapter in Book/Report/Conference proceedingChapterProfessional

Impedanssipneumografia pienten lasten alahengitytiesoireiden selvittelyssä

General information

Publication status: Published
MoE publication type: D2 Article in professional manuals or guides or professional information systems or text book material
Organisations: Department of Electronics and Communications Engineering, Research group: Physiological Measurement Systems and Methods Group
Contributors: Seppä, V., Pelkonen, A. S., Kotaniemi-Syrjänen, A., Viik, J., Mäkelä, M. J., Malmberg, P.
Publication date: 2015

Host publication information

Title of host publication: Allergiatutkimussäätiön vuosikirja 2015

Publication series

Name: Allergiakoulu
Publisher: Allergiatutkimussäätiö
ISSN (Print): 1457-2508

Research output: Chapter in Book/Report/Conference proceedingChapterProfessional

Liite 6: Yleistä kaivannaisjätealueista ja patoturvallisuudesta

General information

Publication status: Published
MoE publication type: D2 Article in professional manuals or guides or professional information systems or text book material
Organisations: Department of Civil Engineering, Research group: Earth Constructions
Contributors: Leppänen, M., Välisalo, T. (ed.), Laasonen, J.
Publication date: 2014

Host publication information

Title of host publication: Kaivosten stressitesti 2013
Publisher: Ympäristöministeriö
ISBN (Electronic): 978-952-11-4269-7

Publication series

Name: Ympäristöministeriön raportteja

Research output: Chapter in Book/Report/Conference proceedingChapterProfessional

Matkalla joustaviin asuinympäristöihin

General information

Publication status: Published
MoE publication type: D2 Article in professional manuals or guides or professional information systems or text book material
Organisations: School of Architecture, Research group: ASUTUT
Contributors: Kotilainen, S.
Number of pages: 4
Pages: 10-13
Publication date: 31 Mar 2015

Host publication information

Title of host publication:  Joustavat asuinympäristöt : 10 visiota aikaa kestävään kaupunkiasumiseen
Volume: 16
Place of publication: Tampere
Publisher: Tampereen teknillinen yliopisto. Arkkitehtuurin laitos
Article number: 1
ISBN (Print): 978-952-15-3476-8
ISBN (Electronic): 978-952-15-3477-5

Publication series

Name: Housing Design
Publisher: Tampere University of Technology. School of Architecture.
Volume: 16

Research output: Chapter in Book/Report/Conference proceedingChapterProfessional

Puurakentamisesta potkua alueiden ja kaupunkien kehittämiseen

General information

Publication status: Published
MoE publication type: D2 Article in professional manuals or guides or professional information systems or text book material
Organisations: School of Architecture, Research group: Urban Laboratory
Contributors: Hynynen, A.
Number of pages: 19
Pages: 75-93
Publication date: 2015

Host publication information

Title of host publication: Puu-Hubi. : Perinteestä uusiin innovaatioihin
Publisher: Tampereen teknillinen yliopisto. Arkkitehtuurin laitos
Editors: Hynynen, A., Panu, A., Taanila, T.
ISBN (Print): 978-952-15-3497-3
ISBN (Electronic): 978-952-15-3498-0

Research output: Chapter in Book/Report/Conference proceedingChapterProfessional

Rakennusten rakennusfysikaalisen suunnittelun ja toteutuksen periaatteet

General information

Publication status: Published
MoE publication type: D2 Article in professional manuals or guides or professional information systems or text book material
Organisations: Department of Civil Engineering, Research group: Building Physics
Contributors: Vinha, J.
Number of pages: 28
Pages: 399-426
Publication date: 2015

Host publication information

Title of host publication: Rakentajain kalenteri 2016
Publisher: Rakennustieto Oy

Publication series

Name: Rakentajain kalenteri
Publisher:  Rakennustieto Oy
Volume: 100
ISSN (Print): 0355-550X
ISSN (Electronic): 1799-9391

Research output: Chapter in Book/Report/Conference proceedingChapterProfessional

Rakenteiden ääneneristyskyvystä asumismelun kokemiseen

General information

Publication status: Published
MoE publication type: D2 Article in professional manuals or guides or professional information systems or text book material
Organisations: Department of Civil Engineering, Research group: Building Acoustics
Contributors: Kylliäinen, M.
Number of pages: 5
Pages: 92-96
Publication date: 2015

Host publication information

Title of host publication: Rakentajain Kalenteri
Place of publication: Helsinki
Publisher: Rakennustieto Oy
ASJC Scopus subject areas: Acoustics and Ultrasonics
Keywords: aciustics, building acoustics, sound insulaiton

Research output: Chapter in Book/Report/Conference proceedingChapterProfessional

Tammerkoski ja Hämeenkatu Tampereen arkkitehtonisen identiteetin ankkureina

General information

Publication status: Published
MoE publication type: D2 Article in professional manuals or guides or professional information systems or text book material
Organisations: School of Architecture
Contributors: Koponen, O.
Number of pages: 8
Pages: 35-42
Publication date: 2015

Host publication information

Title of host publication: Tampereen tarina : Teollisuuden synnyttämä kaupunki harjujen ja järvien solmukohdassa
Volume: Julkaisuja 5/2015
Place of publication: Kaupunkiympäristön kehittäminen
Publisher: Tampereen kaupunki
Editor: Hautamäki, R.
ISBN (Print): 978-951-609-783-4

Publication series

Name: Tampereen kaupunki/Kaupunkiympäristön kehittäminen
Publisher: Tampereen kaupunki
Volume: 5/2015
ISSN (Print): 1797-321X

Research output: Chapter in Book/Report/Conference proceedingChapterProfessional

Uudet arkkitehtoniset ratkaisumallit muuttavat kampuksien ilmettä

Uudet pedagogiset oivallukset sekä tekniset innovaatiot ovat radikaalisti muokanneet yliopisto-oppimista, mikä asettaa merkittäviä kehitystarpeita myös oppimistiloille. Uudenlaiset oppimistavat vaativat uudenlaisia tiloja ja paikkoja, jotka tukevat oppimista parhaalla mahdollisella tavalla. Artikkelissa pohditaan kuinka kampuksia voidaan elävöittää arkkitehtuurin keinoin? Miten eri mittakaavalliset ratkaisut tukevat oppimista, vuorovaikutusta sekä luovuutta?

Kampusten uudistamista voidaan tarkastella erilaisista tilallisista ja arkkitehtonisista näkökulmista. Tässä artikkelissa esitetään kolmen tarkastelutason ideoita kampus-, rakennus- ja tilamittakaavoissa. Kokonaisvaltaiset ratkaisut, joissa rakennuksen tilat ja toiminta uudistuvat täysin, omaavat valtavan potentiaalin muuttaa ihmisten
välistä vuorovaikutusta sekä tilojen käyttöä. Tällaiset ratkaisut saattavat olla kuitenkin kalliita ja hitaita toteuttaa. Pienemmän mittakaavan ratkaisut vaikuttavat pienemmällä alueella, mutta ovat toteutukseltaan edullisempia ja nopeampia. Esimerkiksi kampusten vajaakäyttöisten tilojen, kuten käytävien ja aulatilojen ottaminen hyötykäyttöön voisi tehostaa merkittävästi kampusten tilarakennetta. Täysin uusien toimintojen sijoittaminen näihin vajaakäyttöisiin tiloihin voisi lisäksi luoda kampuksista eläviä urbaaneja ympäristöjä, joissa on toimintaa vuorokauden ympäri. Olemassa olevat rakennukset voivat täten toimia alustoina uusille arkkitehtonisille ratkaisuille, jotka viestivät opetuksen ja tutkimuksen ajankohtaisuudesta. Tutkimuksen tuloksia voidaan soveltaa joustavasti erilaisten kampusympäristöjen muutosten suunnittelussa. Artikkeli toimii keskustelun avauksena suunnittelijoiden, kampuskehittäjien sekä käyttäjien välisessä vuoropuhelussa. Esitetyt ratkaisumallit paljastavat, että olemassa olevissa kampuksissa ja niiden tilarakenteessa on paljon kehityspotentiaalia. Artikkelissa esitetyt visiot herättelevät lukijoita katsomaan olemassa olevia kampuksia uudesta näkökulmasta uusien innovatiivisten esimerkkien ja tilaratkaisujen kautta.

General information

Publication status: Published
MoE publication type: D2 Article in professional manuals or guides or professional information systems or text book material
Organisations: School of Architecture, Research group: Public Buildings
Contributors: Poutanen, J., Peltoniemi, S., Pihlajarinne, N.
Number of pages: 22
Pages: 72-93
Publication date: Mar 2015

Host publication information

Title of host publication: Oppiva kampus : How to co-create campus?
Place of publication: Tampere
Publisher: Suomen Yliopistokiinteistöt Oy
Editors: Nenonen, S., Kärnä, S., Junnonen, J., Tähtinen, S., Sandström, N.
ISBN (Print): 978-952-15-3478-2
ISBN (Electronic): 978-952-15-3479-9

Research output: Chapter in Book/Report/Conference proceedingChapterProfessional

Uusia tuulia Euroopasta

General information

Publication status: Published
MoE publication type: D2 Article in professional manuals or guides or professional information systems or text book material
Organisations: School of Architecture, Research group: Built Environment in Transition, Research group: Urban Planning Theory
Contributors: Lehtovuori, P.
Number of pages: 18
Pages: 42-59
Publication date: 2015

Host publication information

Title of host publication: Asukkaan ehdoilla : moninaisuutta asumamuotoihin
Place of publication: Helsinki
Publisher: Rakennustieto Oy
ISBN (Print): 978-952-267-100-4

Research output: Chapter in Book/Report/Conference proceedingChapterProfessional

1800-luvun Helsingin kadonneiden konserttitilojen akustiikan mallintaminen

General information

Publication status: Published
MoE publication type: B3 Non-refereed article in conference proceedings
Organisations: Department of Civil Engineering, Research group: Building Acoustics, A-Insinöörit Suunnittelu Oy, Helsinki City Museum
Contributors: Niemi, H., Kylliäinen, M., Jäppinen, J., Lindqvist, M.
Number of pages: 6
Pages: 77-82
Publication date: 1 Sep 2015

Host publication information

Title of host publication: Akustiikkapäivät 2015
Place of publication: Kuopio

Publication series

Name: Akustiikkapäivät
ISSN (Print): 1236-8202
ASJC Scopus subject areas: Acoustics and Ultrasonics

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

ÄKK-hankkeen suositukset tulevaisuuden ääneneristysmääräyksiä koskien

General information

Publication status: Published
MoE publication type: B3 Non-refereed article in conference proceedings
Organisations: Department of Civil Engineering, Research group: Building Acoustics, University of Turku, Finnish Institute of Occupational Health, Indoor Environment Laboratory
Contributors: Hongisto, V., Kylliäinen, M., Hyönä, J.
Number of pages: 6
Pages: 561-566
Publication date: 22 Oct 2015

Host publication information

Title of host publication: Rakennusfysiikka 2015
Place of publication: Tampere
Publisher: Tampereen teknillinen yliopisto, rakennustekniikan laitos, rakennetekniikka
ISBN (Print): 978-952-15-3580-2
ASJC Scopus subject areas: Civil and Structural Engineering, Acoustics and Ultrasonics
Keywords: acoustics, sound insulation, airborne sound insulation, impact sound insulation, psychoacoustics

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Alipaineistetun tuulettuvan ryömintätilan rakennusfysikaaliset FEM-simuloinnit

General information

Publication status: Published
MoE publication type: B3 Non-refereed article in conference proceedings
Organisations: Civil Engineering, Research group: Building Physics, Tampere University of Technology, Laboratory of Civil Engineering
Contributors: Salo, J., Huttunen, P., Vinha, J.
Number of pages: 11
Pages: 413-422
Publication date: 24 Oct 2017

Host publication information

Title of host publication: Rakennusfysiikka 2017. Uusimmat tutkimustulokset ja hyvät käytännön ratkaisut : 24-26.10.2017, Tampere
Volume: 2
Place of publication: Tampere
Publisher: Tampereen teknillinen yliopisto, Rakennustekniikka, Rakennusfysiikka
Editors: Vinha, J., Kivioja, H.
ISBN (Print): 978-952-15-4023-3

Publication series

Name: Tampereen teknillinen yliopisto. Rakennustekniikka. Rakennusfysiikka.

Bibliographical note

INT=RAK, "Salo, Juha"

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

A model for anisotropic magnetostriction

General information

Publication status: Published
MoE publication type: B3 Non-refereed article in conference proceedings
Organisations: Department of Mechanical Engineering and Industrial Systems, Research area: Applied Mechanics, Lund University, Aalto University
Contributors: Belahcen, A., Kouhia, R., Rasilo, P., Ristinmaa, M.
Number of pages: 3
Pages: 201-203
Publication date: 2015

Host publication information

Title of host publication: Proceedings of the XII Finnish Mechanics Days
Publisher: Rakenteiden Mekaniikan Seura ry
ISBN (Print): 978-952-93-5608-9
ISBN (Electronic): 978-952-93-5609-6

Bibliographical note

EXT="Rasilo, Paavo"

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

An anisotropic continuum damage model for concrete

In this paper, a thermodynamic formulation for modelling anisotropic damage of elastic brittle materials based on Ottosen's 4-parameter failure surface is proposed. The model is developed by using proper expressions for Gibb's free energy and the complementary form of the dissipation potential. The formulation predicts the basic characteristic behaviour of concrete well and results in a realistic shape for the damage surface.

General information

Publication status: Published
MoE publication type: B3 Non-refereed article in conference proceedings
Organisations: Department of Mechanical Engineering and Industrial Systems, Research area: Applied Mechanics, VTT Tech Res Ctr Finland, VTT Technical Research Center Finland, Aalto University
Contributors: Yaghoubi, S. T., Hartikainen, J., Kolari, K., Kouhia, R.
Number of pages: 56
Pages: 51
Publication date: 2015

Host publication information

Title of host publication: Proceedings of the XII Finnish Mechanics Days : Suomen XII mekaniikkapäivien esitelmät
Publisher: Rakenteiden Mekaniikan Seura ry
Editors: Kouhia, R., Mäkinen, J., Pajunen, S., Saksala, T.
ISBN (Print): 978-952-93-5608-9
ISBN (Electronic): 978-952-93-5609-6

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

An experimental and numerical study of the dynamic Brazilian disc test on Kuru granite

This paper deals with numerical modeling of the dynamic tensile strength of Kuru granite and corresponding experiments with the dynamic Brazilian Disc (BD) tests using the Split Hopkinson Pressure Bar apparatus (SHPB). It was found that the indirect tensile strength of the Kuru granite increased from the static value of 13 MPa to 36 MPa when the impact velocity reached 20 m/s. A numerical method was developed for simulations of these tests. The method includes a material model based on the rate-dependent isotropic compliance damage and embedded discontinuity concepts for rock and an FEM based explicit time marching technique for simulating the dynamics of the SHPB apparatus. Simulation results are in decent agreement with the experiments.

General information

Publication status: Published
MoE publication type: B3 Non-refereed article in conference proceedings
Organisations: Department of Materials Science, Research group: Materials Characterization, Department of Mechanical Engineering and Industrial Systems, Research area: Applied Mechanics
Contributors: Mardoukhi, A., Saksala, T., Hokka, M., Kuokkala, V.
Number of pages: 6
Pages: 210-215
Publication date: 2015

Host publication information

Title of host publication: Proceedings of the XII Finnish Mechanics Day
ISBN (Print): 978-952-93-5608-9
ISBN (Electronic): 978-952-93-5609-6
Keywords: Dynamic Brazilian Disc test, Split Hopkinson Pressure Bar, FEM, rock fracture

Bibliographical note

ORG=mol,0.5
ORG=mei,0.5

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Asuinhuoneistojen betonivälipohjien askelääneneristyksen subjektiivinen ja objektiivinen arviointi

General information

Publication status: Published
MoE publication type: B3 Non-refereed article in conference proceedings
Organisations: Department of Civil Engineering, Research group: Building Acoustics, Finnish Institute of Occupational Health
Contributors: Kylliäinen, M., Oliva, D., Rekola, L., Hongisto, V.
Number of pages: 4
Pages: 204-207
Publication date: 1 Sep 2015

Host publication information

Title of host publication: Akustiikkapäivät 2015
Place of publication: Kuopio
Publisher: Akustinen seura

Publication series

Name: Akustiikkapäivät
ISSN (Print): 1236-8202
ASJC Scopus subject areas: Acoustics and Ultrasonics

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Automated Tonal Balance Enhancement for Audio Mastering Applications

Modern audio mastering procedures are involved with the selective enhancement or attenuation of specific frequency bands. The main reason is the tonal enhancement of the original / unmastered audio material. The aforementioned process is mostly based on the musical information and the mode of the audio material. This information can be retrieved from a listening procedure of the original stimuli, or the correspondent musical key notes. The current work presents an adaptive and automated equalization system that performs the aforementioned mastering procedure, based on a novel method of fundamental frequency tracking. In addition to this, the overall system is being evaluated with objective PEAQ analysis and subjective listening tests in real mastering audio conditions.

General information

Publication status: Published
MoE publication type: B3 Non-refereed article in conference proceedings
Organisations: Signal Processing Research Community (SPRC), Technological Educational Institute of Ionian Islands, Ionian University
Contributors: Mimilakis, S. -. I., Drossos, K., Floros, A., Katerelos, D.
Number of pages: 7
Publication date: May 2013

Host publication information

Title of host publication: Audio Engineering Society Convention 134
Publisher: AES Audio Engineering Society

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Background-Free Second-Harmonic Generation Microscopy of Individual Carbon Nanotubes

General information

Publication status: Published
MoE publication type: B3 Non-refereed article in conference proceedings
Organisations: Department of Physics, Research area: Optics, Research group: Nonlinear Optics, Frontier Photonics, Department of Applied Physics and Nanomicroscopy Center, Aalto University, Univ Jyvaskyla, University of Jyvaskyla, Dept Chem, Nanosci Ctr
Contributors: Bautista, G. S., Johansson, A., Parappurath, N., Herranen, O., Myllyperkiö, P., Jiang, H., Kauppinen, E., Pettersson, M., Kauranen, M.
Number of pages: 2
Publication date: 2015

Host publication information

Title of host publication: Nonlinear Optics 2015 : Kauai, Hawaii United States 26–31 July 2015
Publisher: OSA
Article number: NW1A.5
ISBN (Print): 978-1-55752-001-2

Publication series

Name: Nonlinear Optics Conference Series

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Barkhausen noise Potcore sensor simulations with Comsol

General information

Publication status: Published
MoE publication type: B3 Non-refereed article in conference proceedings
Organisations: Research group: Materials Characterization, Materials Science, Stresstech Oy
Contributors: Laitinen, A., Santa-aho, S., Lukinmaa, H., Suominen, L., Vippola, M.
Number of pages: 11
Pages: 97-107
Publication date: 24 Sep 2017

Host publication information

Title of host publication: 12th International Conference on Barkhausen Noise and Micromagnetic Testing
Publisher: ICBM
ISBN (Print): 978-952-68852-0-9
Keywords: Barkhausen noise

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Betonin kosteusteknisten materiaaliominaisuuksien määrittäminen

General information

Publication status: Published
MoE publication type: B3 Non-refereed article in conference proceedings
Organisations: Civil Engineering, Research group: Building Physics, Laboratory of Civil Engineering
Contributors: Vänttinen, K., Tuominen, E., Vinha, J.
Number of pages: 10
Pages: 461-470
Publication date: 24 Oct 2017

Host publication information

Title of host publication: Rakennusfysiikka 2017. Uusimmat tutkimustulokset ja hyvät käytännön ratkaisut : 24.-26.10.2017, Tampere
Volume: 2
Place of publication: Tampere
Publisher: Tampereen teknillinen yliopisto, Rakennustekniikka, Rakennusfysiikka
Editors: Vinha, J., Kivioja, H.
ISBN (Print): 978-952-15-4023-3

Publication series

Name: Tampereen teknillinen yliopisto. Rakennustekniikka. Rakennusfysiikka.

Bibliographical note

INT=RAK, "Vänttinen, Kari"

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Beyond ic 4.0 : the future potential of bi-tool utilization in the private healthcare

General information

Publication status: Published
MoE publication type: B3 Non-refereed article in conference proceedings
Organisations: Information and Knowledge Management, Research group: Business Data Research Group
Contributors: Ratia, M., Myllärniemi, J.
Publication date: 2018

Host publication information

Title of host publication: 13th International Forum on Knowledge Asset Dynamics, IFKAD 2018 : Delft, Netherlands, 4-6 July 2018
ISBN (Electronic): 978-88-96687-11-6

Publication series

Name: Proceedings IFKAD
ISSN (Electronic): 2280-787X

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Breathers Emergence in Spontaneous Modulation Instability

General information

Publication status: Published
MoE publication type: B3 Non-refereed article in conference proceedings
Organisations: Department of Physics, Research group: Nonlinear Fiber Optics, Research area: Optics
Contributors: Toenger, S., Godin, T., Billet, C., Dias, F., Erkintalo, M., Genty, G., Dudley, J. M.
Publication date: 2015

Host publication information

Title of host publication: European Quantum Electronics Conference 2015
Publisher: Optical Society of America (OSA)
Article number: EF_P_25
ISBN (Electronic): 978-1-4673-7475-0
Source: Bibtex
Source ID: urn:4ae642c11bd3a5e3ed329d3c2860b0a4

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

By64 Tuulettuvat julkisivut 2016 -suunnittelu- ja toteusohjeen laadinta

General information

Publication status: Published
MoE publication type: B3 Non-refereed article in conference proceedings
Organisations: Department of Civil Engineering, Research group: Service Life Engineering of Structures
Contributors: Annila, P., Lahdensivu, J., Pikkuvirta, J., Pakkala, T.
Number of pages: 6
Pages: 109-114
Publication date: 20 Oct 2015

Host publication information

Title of host publication: Rakennusfysiikka 2015. Uusimmat tutkimustulokset ja hyvät käytännön ratkaisut. 20.-22.10.2015, Tampere
Place of publication: Tampere
Publisher: Tampereen teknillinen yliopisto, rakennustekniikan laitos, rakennetekniikka
Editors: Vinha, J., Ruuska, T.
ISBN (Print): 978-952-15-3580-2
Keywords: Double skin facade, Energy efficiency, New renovation consepts, Innovative HVAC, Earth to air heat exchancer

Bibliographical note

AUX=rak,"Pikkuvirta, Jussa"

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Case depth prediction of nitrided components

General information

Publication status: Published
MoE publication type: B3 Non-refereed article in conference proceedings
Organisations: Materials Science
Contributors: Sorsa, A., Santa-aho, S., Aylott, C., Shaw, B., Vippola, M., Leiviskä, K.
Number of pages: 8
Pages: 65-72
Publication date: 24 Sep 2017

Host publication information

Title of host publication: 12th International Conference on Barkhausen Noise and Micromagnetic Testing
Publisher: ICBM
ISBN (Print): 978-952-68852-0-9
Keywords: Barkhausen noise

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Cavitation wear characteristics of Al2O3-ZrO2-ceramic coatings deposited by APS and HVOF -processes

Thermally sprayed ceramic coatings are used in environments requiring good wear- and corrosion resistance among others. However, a typical issue with ceramic coatings is their low impact resistance and tendency to fail catastrophically by cracking. In bulk ceramics, the Al2O3-ZrO2–composition has been of interest for long since already small additions of ZrO2 into Al2O3 have shown improvements in fracture toughness compared to pure Al2O3. Efforts are being made to induce this increased resistance to fracturing in thermally sprayed coatings as well, resulting in higher wear resistance due to a more predictable behavior and damage-tolerance. In this work, Al2O3-ZrO2-coatings have been deposited by atmospheric plasma spray (APS) and high-velocity oxy-fuel spray (HVOF) processes. The wear characteristics of the coatings were evaluated with cavitation erosion, delving into the mechanics of the erosion and the resulting microstructural changes in the coatings. Evidence of phase transformation of t-ZrO2 to m-ZrO2 was found during the erosion. The HVOF-sprayed coating exhibited greater wear resistance against the cavitating bubbles due to its finer microstructure.

General information

Publication status: Published
MoE publication type: B3 Non-refereed article in conference proceedings
Organisations: Materials Science, Research group: Surface Engineering, Institute of Plasma Physics, Academy of Sciences of the Czech Republic
Contributors: Kiilakoski, J., Lukac, F., Koivuluoto, H., Vuoristo, P.
Number of pages: 6
Pages: 928-933
Publication date: 9 Jun 2017

Host publication information

Title of host publication: Internationl Thermal Spray Conference ITSC 2017, Conference Proceedings : June 7-9, 2017, Düsseldorf, Germany.
Volume: 336
Place of publication: Düsseldorf
Publisher: DVS Media GmbH
ISBN (Electronic): 978-3-96144-000-9

Publication series

Name: DVS-Berichte / DVS - Deutscher Verband für Schweißen und Verwandte Verfahren e.V.
Publisher: DVS Media GmbH
ISSN (Electronic): 0418-9639
ASJC Scopus subject areas: Mechanics of Materials, Surfaces, Coatings and Films
Keywords: Thermal spray coating, HVOF spraying, Cavitation damage, alumina-yttria-stabilized zirconia, Erosion testing, PLASMA SPRAY

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Characteristics of Digital Hydraulics with Commercial Controllers

Model-based control algorithms of digital hydraulic valves offer optimized control performance, but are computationally heavy. Research work has been carried out using PC hardware such as dSPACE real-time systems. In order to apply digital hydraulic valve control in real, series production application, the algorithms should be redesigned such that controllers with limited computation power are sufficient. The paper presents methods for lowering the computational burden and shows the effect of optimization methods in execution time. Model-based controller design is carried out in MATLAB/Simulink and automatic code generation is used in implementation phase. A wheel loader equipped with digital hydraulic valve system is presented as a test case, where control algorithms are implemented on commercial Bosch Rexroth BODAS RC controller. Preliminary work for computationally faster control algorithms is carried out on mobile boom mock-up. The methods presented decrease the execution time to approximately 1/194 of the original.

General information

Publication status: Published
MoE publication type: B3 Non-refereed article in conference proceedings
Organisations: Department of Intelligent Hydraulics and Automation, Research group: Digital hydraulics, Research group: Fluid power automation in mobile machines, Research group: Powertrain design
Contributors: Huova, M., Ahopelto, M., Ketonen, M., Ahola, V., Linjama, M., Huhtala, K.
Number of pages: 15
Pages: 114-128
Publication date: Feb 2015

Host publication information

Title of host publication: The Seventh Workshop on Digital Fluid Power
Publisher: Linz Center of Mechatronics
ISBN (Print): 978-3-200-04014-4
Keywords:  Digital Hydraulics, Digital Valve System, Digital hydraulic valve control, DFCU, Optimization, Mobile machine

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Clean Components of Fluid Power System Reduce Maintenance Costs

General information

Publication status: Published
MoE publication type: B3 Non-refereed article in conference proceedings
Organisations: Department of Intelligent Hydraulics and Automation, Research group: Condition monitoring of hydraulic components and systems
Contributors: Rinkinen, J., Elo, L.
Number of pages: 8
Publication date: 1 Oct 2015

Host publication information

Title of host publication: Maintenance, Condition Monitoring and Diagnostics; Maintenance Performance Measurement and Management : MCMD 2015 and MPMM 2015
Article number: 2 (2015-10-01)
ISBN (Print): 978-951-98113-7-6

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Computational modelling of high-cycle fatigue using a continuum based model

In this paper a computational implementation of continuum based transversally isotropic fatigue model is described. The key idea of the continuum based HCF-model is the moving endurance surface where the movement is described by a back stress type tensor, the evolution of which is described by a rate type equation. Furthermore, damage accumulation is also governed with a rate type evolution equation. The model is implemented in the Abaqus FE-program using the user material subroutine. Two strategies to perform a fatigue analysis are compared in a standard cycling loading case. The first analysis reflects the procedure used in a standard fatigue computation. In the second analysis type the effect of evolving damage fields on fatigue life is investigated.

General information

Publication status: Published
MoE publication type: B3 Non-refereed article in conference proceedings
Organisations: Department of Mechanical Engineering and Industrial Systems, Research area: Applied Mechanics
Contributors: Holopainen, S., Kouhia, R., Könnö, J., Saksala, T.
Number of pages: 4
Pages: 71-74
Publication date: 2015

Host publication information

Title of host publication: Proceedings of the NSCM28 : 28th Nordic Seminar on Computational Mechanics, October 22 – 23, 2015, Tallinn, Estonia
ISBN (Print): 978-9949-430-95-6
ISBN (Electronic): 978-9949-430-96-3

Bibliographical note

oa 2015 Holopainen et al tarkistettu 19.10.2016 /KK

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Detailed analysis of laser-induced breakdown spectroscopy of single particles using electrodynamic balance trapping

General information

Publication status: Published
MoE publication type: B3 Non-refereed article in conference proceedings
Organisations: Department of Physics, Research area: Optics, Research area: Aerosol Physics, Research group: Applied Optics
Contributors: Järvinen, S. T., Saari, S., Keskinen, J., Toivonen, J.
Pages: CH_7_5
Publication date: 2015

Host publication information

Title of host publication: The European Conference on Lasers and Electro-Optics 2015
Publisher: Optical Society of America
ISBN (Print): 978-1-4673-7475-0
Source: Bibtex
Source ID: urn:6a7f30acd7f36662c9eb556c444f9d16

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Development of New Kinds of Plasmonics Materials Through Swift Heavy Ion Shaping Technique

General information

Publication status: Published
MoE publication type: B3 Non-refereed article in conference proceedings
Organisations: Department of Physics, Research group: Nonlinear Optics
Contributors: Cardin, J., Dufour, C., KHOMENKOV, V., Fafin, A., Monnet, I., Rizza, G., COULON, P., Slablab, A., Mailly, D., Ulysse, C., Lafosse, X., Perruchas, S., Gacoin, T.
Publication date: 1 Jun 2013

Host publication information

Title of host publication: 7th International Conference on Materials for Advanced Technologies (ICMAT 2013), Jun 2013, Suntec, Singapore
Place of publication: Singapore
Source: Bibtex
Source ID: urn:ea7999b3358b51830b80923b8fb84f3a

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Digital Hydraulics on Rails – Pilot Project of Improving Reliability on Railway Rolling Stock by Utilizing Digital Valve System

General information

Publication status: Published
MoE publication type: B3 Non-refereed article in conference proceedings
Organisations: Department of Intelligent Hydraulics and Automation, Research group: Fluid power automation in mobile machines, Research group: Powertrain design, Research group: Digital hydraulics, Bosch Rexroth AG, VR-Group Ltd
Contributors: Fischer, H., Laamanen, A., Iso-Heiko, A., Schäfer, O., Karvonen, M., Karhu, O., Huhtala, K., Pulkkinen, V., Huttunen, A.
Number of pages: 11
Pages: 644-654
Publication date: 20 May 2015

Host publication information

Title of host publication: Proceedings of The Fourteenth Scandinavian International Conference on Fluid Power, SICFP15
Editors: Laamanen, A., Huhtala, K.
ISBN (Electronic): 978-952-15-3530-7, 978-952-15-3658-8

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Dual-Mode Behavior in Multi-Section DFB Semiconductor Lasers with Laterally-Coupled Ridge-Waveguide Surface Gratings

General information

Publication status: Published
MoE publication type: B3 Non-refereed article in conference proceedings
Organisations: Optoelectronics Research Centre, Research group: Semiconductor Technology and Applications, Research group: Nanophotonics
Contributors: Uusitalo, T., Virtanen, H., Viheriälä, J., Salmi, J. O., Aho, A., Dumitrescu, M.
Publication date: Jun 2015

Host publication information

Title of host publication: The European Conference on Lasers and Electro-Optics 2015
Publisher: OSA - The Optical Society
Article number: CB_P_26
ISBN (Electronic): 978-1-4673-7475-0

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Dynamics of rogue wave and soliton emergence in spontaneous modulation instability

Numerical simulations of spontaneous modulation instability show that localized structures in the chaotic instability field are well-described by analytic elementary and higher order soliton on finite background solutions of the nonlinear Schrödinger equation.

General information

Publication status: Published
MoE publication type: B3 Non-refereed article in conference proceedings
Organisations: Department of Physics, Frontier Photonics, The University of Auckland, University College Dublin, Ireland, Christina Thorpe, Université de Franche-Comté, Institut FEMTO-ST, School of Mathematical Sciences, University College Dublin
Contributors: Toenger, S., Godin, T., Billet, C., Dias, F., Erkintalo, M., Genty, G., Dudley, J. M.
Number of pages: 2
Publication date: 4 May 2015

Host publication information

Title of host publication: CLEO: QELS - Fundamental Science, CLEO_QELS 2015
Publisher: Optical Society of America (OSA)
ISBN (Print): 9781557529688
ASJC Scopus subject areas: Atomic and Molecular Physics, and Optics, Electrical and Electronic Engineering
Source: Scopus
Source ID: 84935059381

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

EMCCD imaging of strongly ionizing radioactive materials for safety and security

General information

Publication status: Published
MoE publication type: B3 Non-refereed article in conference proceedings
Organisations: Department of Physics, Research area: Optics, Frontier Photonics
Contributors: Sand, J., Ihantola, S., Peräjärvi, K., Toivonen, H., Nicholl, A., Hrnecek, E., Toivonen, J.
Pages: JSII_P_1
Publication date: 12 May 2013

Host publication information

Title of host publication: 2013 Conference on Lasers and Electro-Optics - International Quantum Electronics Conference
Publisher: Optical Society of America
ISBN (Electronic): 978-1-4799-0594-2
Keywords: Radioluminescence, Imaging of alpha emitters
Source: Bibtex
Source ID: urn:29a089b7818f19ccf28db64b192d34f6

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Emergency Voice/Stress - level Combined Recognition for Intelligent House Applications

Legacy technologies for word recognition can benefit from emerging affective voice retrieval, potentially leading to intelligent applications for smart houses enhanced with new features. In this work we introduce the implementation of a system, capable to react to common spoken words, taking into account the estimated vocal stress level, thus allowing the realization of a prioritized, affective aural interaction path. Upon the succesful word recognition and the corresponding stress level estimation, the system triggers particular affective-prioritized actions, defined within the application scope of an intelligent home environment. Application results show that the established affective interaction path significantly improves the ambient intelligence provided by an affective vocal sensor that can be easily integrated with any sensor-based home monitoring system.

General information

Publication status: Published
MoE publication type: B3 Non-refereed article in conference proceedings
Organisations: Research Community on Data-to-Decision (D2D), Technological Educational Institute of Piraeus, Ionian University, BLUE dev Ltd.
Contributors: Drossos, K., Floros, A., Agavanakis, K., Tatlas, N., Kanellopoulos, N.
Number of pages: 11
Publication date: Apr 2012

Host publication information

Title of host publication: Audio Engineering Society Convention 132
Publisher: AES Audio Engineering Society

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Emotion measurement services for knowledge workers

In order to understand and manage how emotions affect knowledge work, organizations need proper tools to become aware of emotions. Measuring emotions is an approach to consider. In this paper, three dif-ferent emotion measurement services are tested: daily experience sur-vey, electrodermal activity ring and self-tracking of emotions. The paper provides new insights and user experiences of emotion measurement services and their applicability in daily knowledge work. Managerial guidelines are drawn up for planning and executing emotion measure-ment services in an organization for two purposes – self-development and measuring company pulse.

General information

Publication status: Published
MoE publication type: B3 Non-refereed article in conference proceedings
Organisations: Department of Information Management and Logistics, Research group: Novi, Department of Information Management and Logistics, Intopalo Oy
Contributors: Vuolle, M., Salonius, H., Lintinen, J., Mäkinen, J.
Number of pages: 20
Publication date: 2015

Host publication information

Title of host publication: RESER2015 : 25th Annual RESER Conference, September 10-12, 2015 Copenhagen, Denmark
Place of publication: Copenhagen
Publisher: RESER European Association for Research on Services
ISBN (Electronic): 978-87-7349-921-4
Keywords: Knowledge work , Emotions, Measurement, self-management

Bibliographical note

AUX=tlo,"Lintinen, Johanna"

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Energiatehokkuusinformaatio palvelurakennuksissa

General information

Publication status: Published
MoE publication type: B3 Non-refereed article in conference proceedings
Organisations: Civil Engineering, Research group: Capacity Development of Water and Environmental Services CADWES
Contributors: Sorri, J., Heljo, J., Uotila, U., Ruusala, A.
Number of pages: 6
Pages: 325-330
Publication date: 2017

Host publication information

Title of host publication: Rakennusfysiikka 2017: Uusimmat tutkimustulokset ja hyvät käytännön ratkaisut : 24.-26.10.2017, Tampere
Volume: 1
Place of publication: Tampere
Publisher: Tampereen teknillinen yliopisto, Rakennustekniikka, Rakennusfysiikka
ISBN (Print): 978-952-15-4022-6

Publication series

Name: Tampereen teknillinen yliopisto. Rakennustekniikka. Rakennusfysiikka.

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Energiatehokkuus on entistä enemmän sähkötehon hallintaa

General information

Publication status: Published
MoE publication type: B3 Non-refereed article in conference proceedings
Organisations: Civil Engineering, Research group: Real estate development, Research group: Capacity Development of Water and Environmental Services CADWES, Tampere University of Applied Science
Contributors: Heljo, J., Sorri, J., Harsia, P.
Number of pages: 6
Pages: 281-286
Publication date: 2017

Host publication information

Title of host publication: Rakennusfysiikka 2017: Uusimmat tutkimustulokset ja hyvät käytännön ratkaisut : 24.-26.10.2017, Tampere
Volume: 1
Publisher: Tampereen teknillinen yliopisto, Rakennustekniikka, Rakennusfysiikka
Editors: Vinha, J., Kivioja, H.
ISBN (Print): 978-952-15-4022-6

Publication series

Name: Tampereen teknillinen yliopisto. Rakennustekniikka. Rakennusfysiikka.

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Energiatehokkuus rakennusalan ammattityövoiman täydennyskoulutuksessa

General information

Publication status: Published
MoE publication type: B3 Non-refereed article in conference proceedings
Organisations: Department of Civil Engineering, Research group: Capacity Development of Water and Environmental Services CADWES
Contributors: Teriö, O., Sorri, J.
Number of pages: 6
Pages: 97-102
Publication date: 20 Oct 2015

Host publication information

Title of host publication: Rakennusfysiikka 2015. Uusimmat tutkimustulokset ja hyvät käytännön ratkaisut. 20.-22.10.2015, Tampere
Place of publication: Tampere
Publisher: Tampereen teknillinen yliopisto, rakennustekniikan laitos, rakennetekniikka
Editors: Vinha, J., Ruuska, T.
ISBN (Print): 978-952-15-3580-2
Keywords: Double skin facade, Energy efficiency, New renovation consepts, Innovative HVAC, Earth to air heat exchancer

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Engelin teatterin huoneakustiikan mallintaminen

General information

Publication status: Published
MoE publication type: B3 Non-refereed article in conference proceedings
Organisations: Department of Civil Engineering, Research group: Building Acoustics, A-Insinöörit Suunnittelu Oy, Helsinki City Museum
Contributors: Kylliäinen, M., Niemi, H., Jäppinen, J., Lindqvist, M.
Number of pages: 6
Pages: 145-150
Publication date: 1 Sep 2015

Host publication information

Title of host publication: Akustiikkapäivät 2015
Publisher: Akustinen seura

Publication series

Name: Akustiikkapäivät
ISSN (Print): 1236-8202
ASJC Scopus subject areas: Acoustics and Ultrasonics

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Enhancement mechanisms for second-harmonic generation from metal nanostructures

General information

Publication status: Published
MoE publication type: B3 Non-refereed article in conference proceedings
Organisations: Department of Physics, Research area: Optics, Research group: Nonlinear Optics, Univ Eastern Finland, University of Eastern Finland, Inst Photon, Institute of Photonics, Univ Eastern Finland, University of Eastern Finland, Sch Pharm
Contributors: Kauranen, M., Czaplicki, R., Mäkitalo, J., Lehtolahti, J., Koskinen, K., Laukkanen, J., Kuittinen, M.
Publication date: 2015

Host publication information

Title of host publication: PROCEEDINGS OF SPIE : Ultrafast Phenomena and Nanophotonics XX
Volume: 9746
ISBN (Electronic): 9781628419818

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Experimental demonstration of temporal ghost imaging

We report on the first experimental demonstration of time-domain ghost imaging using different types of temporally incoherent light sources. Our results open novel perspectives for dynamic imaging of ultra-fast waveforms with high resolution.

General information

Publication status: Published
MoE publication type: B3 Non-refereed article in conference proceedings
Organisations: Department of Physics, Research area: Optics, Research group: Nonlinear Fiber Optics, Institut FEMTO-ST, Université de Franche-Comté, Institut FEMTO-ST, UMR 6174 CNRS-Université de Franche-Comté
Contributors: Ryczkowski, P., Barbier, M., Friberg, A. T., Dudley, J. M., Genty, G.
Publication date: 2015

Host publication information

Title of host publication: 2015 European Conference on Lasers and Electro-Optics - European Quantum Electronics Conference
Publisher: OSA
Article number: CF6_3
ISBN (Electronic): 978-1-4673-7475-0

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Exploration of different boundary conditions in the sideways falling situation in hip fracture finite element modelling

General information

Publication status: Published
MoE publication type: B3 Non-refereed article in conference proceedings
Organisations: Department of Mechanical Engineering and Industrial Systems, Research area: Applied Mechanics, Department of Electronics and Communications Engineering, Research group: Computational Biophysics and Imaging Group, BioMediTech, UKK Institute for Health Promotion Research, Jyväskylän yliopisto, Jyvaskyla Central Hospital
Contributors: Abe, S., Ylinen, A., Narra Girish, N., Nikander, R., Hyttinen, J., Kouhia, R., Sievänen, H.
Number of pages: 6
Pages: 130-135
Publication date: 2015

Host publication information

Title of host publication: Proceeding of the XII Finnish Mechanics Days
Publisher: Rakenteiden Mekaniikan Seura ry
ISBN (Print): 978-952-93-5608-9
ISBN (Electronic): 978-952-93-5609-6

Bibliographical note

ORG=mei,0.5
ORG=elt,0.5
EXT="Sievänen, Harri"

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Fabrication of Fluorescent Silver Nanoclusters-based Micro-Label in Polymers

General information

Publication status: Published
MoE publication type: B3 Non-refereed article in conference proceedings
Organisations: Department of Physics, Research group: Nonlinear Optics, Research area: Optics, Research group: Applied Optics
Contributors: Kunwar, P., Hassinen, J., Bautista, G., Ras, R. H., Toivonen, J.
Publication date: 2015

Host publication information

Title of host publication: The European Conference on Lasers and Electro-Optics 2015
Publisher: OSA
Article number: CM_P_5
ISBN (Print): 978-1-4673-7475-0

Publication series

Name: European Conference on Lasers and Electro-Optics Europe and International Quantum Electronics Conference

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

High-efficiency yellow VECSEL with 20 W output power

General information

Publication status: Published
MoE publication type: B3 Non-refereed article in conference proceedings
Organisations: Optoelectronics Research Centre, Research group: Semiconductor Technology and Applications
Contributors: Kantola, E., Leinonen, T., Ranta, S., Tavast, M., Guina, M.
Publication date: 2013

Host publication information

Title of host publication: Optics Days 2013, Helsinki, Finland : Oral presentation in Optics Days 2013, Helsinki, Finland

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Hometalolle suoritettavat toimenpiteet ja niiden valinta - case-esimerkki

General information

Publication status: Published
MoE publication type: B3 Non-refereed article in conference proceedings
Organisations: Department of Civil Engineering, Research group: Service Life Engineering of Structures, Tampere University of Technology
Contributors: Kankkunen, T., Kero, P.
Number of pages: 6
Pages: 265-270
Publication date: 20 Oct 2015

Host publication information

Title of host publication: Rakennusfysiikka 2015. Uusimmat tutkimustulokset ja hyvät käytännön ratkaisut. 20.-22.10.2015, Tampere
Place of publication: Tampere
Publisher: Tampereen teknillinen yliopisto, rakennustekniikan laitos, rakennetekniikka
Editors: Vinha, J., Ruuska, T.
ISBN (Print): 978-952-15-3580-2
Keywords: Double skin facade, Energy efficiency, New renovation consepts, Innovative HVAC, Earth to air heat exchancer

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Hydraulic Hybrid Actuator: Theoretical Aspects and Solution Alternatives

This paper presents and analyzes a hybrid solution, in which the hydraulic energy storage element is integrated to the hydraulic actuator. The approach results in a new system layout–a distributed hybrid system–in which only mean power is transmitted between the actuators and the high power peaks are handled locally. Three different implementations are discussed. A multi-actuator excavator load cycle is analyzed and dimensioning of the components is discussed. Limitations of the approach are also discussed.

General information

Publication status: Published
MoE publication type: B3 Non-refereed article in conference proceedings
Organisations: Department of Intelligent Hydraulics and Automation, Research group: Digital hydraulics, Research group: Fluid power automation in mobile machines, Aalto University
Contributors: Linjama, M., Huova, M., Pietola, M., Juhala, J., Huhtala, K.
Number of pages: 11
Publication date: May 2015

Host publication information

Title of host publication: Proceedings of the Fourteenth Scandinavian International Conference on Fluid Power
Place of publication: Tampere
Publisher: Tampere University of Technology
Editors: Laamanen, A., Huhtala, K., Uusi-Heikkilä, J.
ISBN (Electronic): 978-952-15-3658-8
Keywords: Hydraulic Hybrids, Hybrid actuator

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Ilmaääneneristysluku sekä standardisoitu ja normalisoitu äänitasoeroluku huoneistojen välisen ilmaääneneristävyyden kuvaajina

General information

Publication status: Published
MoE publication type: B3 Non-refereed article in conference proceedings
Organisations: Department of Civil Engineering, Research group: Building Acoustics, Finnish Institute of Occupational Health
Contributors: Kylliäinen, M., Takala, J., Hongisto, V.
Number of pages: 4
Pages: 158-161
Publication date: 1 Sep 2015

Host publication information

Title of host publication: Akustiikkapäivät 2015
Place of publication: Kuopio
Publisher: Akustinen seura

Publication series

Name: Akustiikkapäivät
ISSN (Print): 1236-8202
ASJC Scopus subject areas: Acoustics and Ultrasonics

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Ilmastonmuutoksen vaikutus betonijulkisivujen vaurioitumisen etenemiseen

General information

Publication status: Published
MoE publication type: B3 Non-refereed article in conference proceedings
Organisations: Department of Civil Engineering, Research group: Service Life Engineering of Structures, Tampere University of Technology
Contributors: Pakkala, T., Lemberg, A., Köliö, A., Lahdensivu, J.
Number of pages: 8
Pages: 203-210
Publication date: Oct 2015

Host publication information

Title of host publication: Rakennusfysiikka 2015 : Uusimmat tutkimustulokset ja hyvät käytännön ratkaisut, 20.-22.10.2015, Tampere
Place of publication: Tampere
Publisher: Tampereen teknillinen yliopisto, rakennustekniikan laitos, rakennetekniikka
Editors: Vinha, J., Ruuska, T.
ISBN (Print): 978-952-15-3580-2

Bibliographical note

AUX=rak,"Lemberg, Antti-Matti"

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Intensity Interferometry of Supercontinuum Light

General information

Publication status: Published
MoE publication type: B3 Non-refereed article in conference proceedings
Organisations: Photonics, Tampere University of Technology
Contributors: Toenger, S., Ahvenjärvi, J., Ryczkowski, P., Genty, G.
Publication date: Jun 2018

Host publication information

Title of host publication: Trends in Electromagnetic Coherence
Place of publication: Joensuu
Publisher: University of Eastern Finland
Editors: Setälä, T., Turunen, J., T. Friberg, A., Saastamoinen, K.
ISBN (Print): 978-952-61-2817-7

Publication series

Name: Publications of the University of Eastern Finland. Reports and studies in forestry and natural sciences
No.: 32
ISSN (Print): 1798-5684
Keywords: interferometric autocorrelation, Two-photon absorption, supercontinuum

Bibliographical note

jufoid=71333

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Investigating Auditory Human-Machine Interaction: Analysis and Classification of Sounds Commonly Used by Consumer Devices

Many common consumer devices use a short sound indication for declaring various modes of their functionality, such as the start and the end of their operation. This is likely to result in an intuitive auditory human-machine interaction, imputing a semantic content to the sounds used. In this paper we investigate sound patterns mapped to "Start" and "End" of operation manifestations and explore the possibility such semantics’ perception to be based either on users’ prior auditory training or on sound patterns that naturally convey appropriate information. To this aim, listening and machine learning tests were conducted. The obtained results indicate a strong relation between acoustic cues and semantics along with no need of prior knowledge for message conveyance.

General information

Publication status: Published
MoE publication type: B3 Non-refereed article in conference proceedings
Organisations: Research Community on Data-to-Decision (D2D), Aristotle University of Thessaloniki, Technological Educational Institute of Ionian Islands, Ionian University
Contributors: Drossos, K., Kotsakis, R., Pappas, P., Kalliris, G., Floros, A.
Number of pages: 9
Publication date: May 2013

Host publication information

Title of host publication: Audio Engineering Society Convention 134
Publisher: AES Audio Engineering Society
Article number: 8812

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Julkisivujen ja parvekkeiden talvikorjausohje

General information

Publication status: Published
MoE publication type: B3 Non-refereed article in conference proceedings
Organisations: Civil Engineering, Research group: Service Life Engineering of Structures
Contributors: Pakkala, T., Lahdensivu, J., Köliö, A., Annila, P.
Number of pages: 6
Pages: 179-184
Publication date: Oct 2017

Host publication information

Title of host publication: Rakennusfysiikka 2017 : Uusimmat tutkimustulokset ja hyvät käytännön ratkaisut, 24-26.10.2017, Tampere
Place of publication: Tampere
Publisher: Tampereen teknillinen yliopisto, Rakennustekniikka, Rakennusfysiikka
Editors: Vinha, J., Kivioja, H.
ISBN (Print): 978-952-15-4022-6

Publication series

Name: Tampereen teknillinen yliopisto. Rakennustekniikka. Rakennusfysiikka.
ASJC Scopus subject areas: Civil and Structural Engineering

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Kapillaaristen vedenimuominaisuuksien määrittämiseen sopivan vapaan vedenimukoelaitteiston kehittäminen

General information

Publication status: Published
MoE publication type: B3 Non-refereed article in conference proceedings
Organisations: Department of Civil Engineering, Research group: Building Physics
Contributors: Tuominen, E., Vinha, J.
Number of pages: 6
Pages: 233-238
Publication date: 20 Oct 2015

Host publication information

Title of host publication: Rakennusfysiikka 2015. Uusimmat tutkimustulokset ja hyvät käytännön ratkaisut. 20.-22.10.2015, Tampere
Place of publication: Tampere
Publisher: Tampereen teknillinen yliopisto, rakennustekniikan laitos, rakennetekniikka
Editors: Vinha, J., Ruuska, T.
ISBN (Print): 978-952-15-3580-2
Keywords: Double skin facade, Energy efficiency, New renovation consepts, Innovative HVAC, Earth to air heat exchancer

Bibliographical note

AUX=rak,"Tuominen, Eero"

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Knowledge transfer and work productivity

General information

Publication status: Published
MoE publication type: B3 Non-refereed article in conference proceedings
Organisations: Industrial and Information Management, Research group: Knowledge and Learning Research Center
Contributors: Palvalin, M., Vuori, V., Helander, N.
Number of pages: 15
Pages: 1120-1134
Publication date: 15 Jun 2017

Host publication information

Title of host publication: Proceedings of 12th International Forum on Knowledge Asset Dynamics : St. Petersburgh, Russia 7-9 June 2017
Editors: Spender, J., Schiuma, G., Gavrilova, T.
ISBN (Electronic): 978-88-96687-10-9

Publication series

Name: Proceedings IFKAD
ISSN (Print): 2280-787X

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Koko Julkisivua peittävän lasijulkisivun vaikutus Etelä-Ruotsissa sijaitsevan rakennuksen energiatehokkuuteen

Article discuss the effect of the added façade glazing on the building energy consumption in one case building in Malmö, Sweden

General information

Publication status: Published
MoE publication type: B3 Non-refereed article in conference proceedings
Organisations: Department of Civil Engineering, Research group: Service Life Engineering of Structures, Lund University
Contributors: Hilliaho, K., Nordquist, B., Wallentén, P.
Number of pages: 8
Pages: 509-516
Publication date: 20 Oct 2015

Host publication information

Title of host publication: Rakennusfysiikka 2015. Uusimmat tutkimustulokset ja hyvät käytännön ratkaisut. 20.-22.10.2015, Tampere
Place of publication: Tampere
Publisher: Tampereen teknillinen yliopisto, rakennustekniikan laitos, rakennetekniikka
Editors: Vinha, J., Ruuska, T.
ISBN (Print): 978-952-15-3580-2

Publication series

Name: Rakennustekniikan laitos. Rakennetekniikka. Seminaarijulkaisu 4
No.: 4
ASJC Scopus subject areas: Civil and Structural Engineering, Building and Construction
Keywords: Double skin facade, Energy efficiency, New renovation consepts, Innovative HVAC, Earth to air heat exchancer

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Kosteus- ja mikrobivaurioiden laajuus kuntien rakennuksissa

General information

Publication status: Published
MoE publication type: B3 Non-refereed article in conference proceedings
Organisations: Department of Civil Engineering, Research group: Service Life Engineering of Structures, Research area: Structural Engineering
Contributors: Annila, P., Hellemaa, M., Suonketo, J., Pentti, M.
Number of pages: 6
Pages: 95-100
Publication date: 11 Mar 2015

Host publication information

Title of host publication: Sisäilmastoseminaari 2015 SIY Raportti 33, Messukeskus, Helsinki 11.3.2015
Place of publication: Juva
Editors: Säteri, J., Ahola, M.
ISBN (Print): 978-952-5236-43-9

Publication series

Name: SIY Raportti
Volume: 33

Bibliographical note

AUX=rak,"Hellemaa, Matti"

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Kosteusvaurioiden vakavuus kuntien rakennuksissa

General information

Publication status: Published
MoE publication type: B3 Non-refereed article in conference proceedings
Organisations: Civil Engineering, Research group: Service Life Engineering of Structures, Research area: Structural Engineering, Research group: Building Physics
Contributors: Annila, P., Lahdensivu, J., Suonketo, J., Pentti, M., Laukkarinen, A., Vinha, J.
Number of pages: 6
Pages: 135-140
Publication date: 24 Oct 2017

Host publication information

Title of host publication: Rakennusfysiikka 2017. Uusimmat tutkimustulokset ja hyvät käytännön ratkaisut : 24.-26.10.2017, Tampere
Volume: 1
Place of publication: Tampere
Publisher: Tampereen teknillinen yliopisto, Rakennustekniikka, Rakennusfysiikka
Editors: Vinha, J., Kivioja, H.
ISBN (Print): 978-952-15-4022-6

Publication series

Name: Tampereen teknillinen yliopisto. Rakennustekniikka. Rakennusfysiikka.
ASJC Scopus subject areas: Civil and Structural Engineering, Building and Construction

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Koulujen ja päiväkotien laskettu ja toteutunut energiankulutus

General information

Publication status: Published
MoE publication type: B3 Non-refereed article in conference proceedings
Organisations: Civil Engineering, Research group: Building Physics
Contributors: Ruusala, A., Vinha, J.
Number of pages: 8
Pages: 267-274
Publication date: 24 Oct 2017

Host publication information

Title of host publication: Rakennusfysiikka 2017. Uusimmat tutkimustulokset ja hyvät käytännön ratkaisut : 24.-26.10.2017, Tampere
Volume: 1
Place of publication: Tampere
Publisher: Tampereen teknillinen yliopisto, Rakennustekniikka, Rakennusfysiikka
Editors: Vinha, J., Kivioja, H.
ISBN (Print): 978-952-15-4022-6

Publication series

Name: Tampereen teknillinen yliopisto. Rakennustekniikka. Rakennusfysiikka.
ASJC Scopus subject areas: Engineering(all), Energy(all)

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Kuorielementtien kuivumisen mallintaminen hydrataation huomioivalla FEM-laskennalla

General information

Publication status: Published
MoE publication type: B3 Non-refereed article in conference proceedings
Organisations: Civil Engineering, Research group: Building Physics, Laboratory of Civil Engineering
Contributors: Sekki, P., Korhonen, L., Vinha, J.
Number of pages: 7
Pages: 399-405
Publication date: 24 Oct 2017

Host publication information

Title of host publication: Rakennusfysiikka 2017. Uusimmat tutkimustulokset ja hyvät käytännön ratkaisut : 24.-26.10.2017, Tampere
Volume: 2
Place of publication: Tampere
Publisher: Tampereen teknillinen yliopisto, Rakennustekniikka, Rakennusfysiikka
Editors: Vinha, J., Kivioja, H.
ISBN (Print): 978-952-15-4023-3

Publication series

Name: Tampereen teknillinen yliopisto. Rakennustekniikka. Rakennusfysiikka.
ASJC Scopus subject areas: Engineering(all)

Bibliographical note

INT=RAK, "Korhonen, Lauri"

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Kustannusoptimaaliset energiakorjaus- ja uusiutuvan energian tuotannon ratkaisut kunnallisissa palvelurakennuksissa

General information

Publication status: Published
MoE publication type: B3 Non-refereed article in conference proceedings
Organisations: Civil Engineering, Research group: Building Physics, Aalto Univ, Aalto University, Sch Engn, Dept Energy Technol, Equa Simulation Finland Oy
Contributors: Jokisalo, J., Sankelo, P., Sirén, K., Vinha, J.
Number of pages: 6
Pages: 287-292
Publication date: 24 Oct 2017

Host publication information

Title of host publication: Rakennusfysiikka 2017. Uusimmat tutkimustulokset ja hyvät käytännön ratkaisut : 24.-26.10.2017, Tampere
Volume: 1
Place of publication: Tampere
Publisher: Tampereen teknillinen yliopisto, Rakennustekniikka, Rakennusfysiikka
Editors: Vinha, J., Kivioja, H.
ISBN (Print): 978-952-15-4022-6
ASJC Scopus subject areas: Engineering(all), Energy(all)

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Laastien vedenimukertoimen määrittämisen virhelähdekokeet

General information

Publication status: Published
MoE publication type: B3 Non-refereed article in conference proceedings
Organisations: Department of Civil Engineering
Contributors: Tuominen, E., Vinha, J.
Number of pages: 6
Pages: 239-244
Publication date: 20 Oct 2015

Host publication information

Title of host publication: Rakennusfysiikka 2015. Uusimmat tutkimustulokset ja hyvät käytännön ratkaisut. 20.-22.10.2015, Tampere
Place of publication: Tampere
Publisher: Tampereen teknillinen yliopisto, rakennustekniikan laitos, rakennetekniikka
Editors: Vinha, J., Ruuska, T.
ISBN (Print): 978-952-15-3580-2
Keywords: Double skin facade, Energy efficiency, New renovation consepts, Innovative HVAC, Earth to air heat exchancer

Bibliographical note

AUX=rak,"Tuominen, Eero"

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Laastin ja betonin lämmönjohtavuuden ja ominaislämpökapasiteetin määrittäminen lämpövirtalevylaitteella

General information

Publication status: Published
MoE publication type: B3 Non-refereed article in conference proceedings
Organisations: Department of Civil Engineering, Research group: Building Physics
Contributors: Ruuska, T., Vinha, J.
Number of pages: 6
Pages: 227-232
Publication date: 20 Oct 2015

Host publication information

Title of host publication: Rakennusfysiikka 2015. Uusimmat tutkimustulokset ja hyvät käytännön ratkaisut. 20.-22.10.2015, Tampere
Place of publication: Tampere
Publisher: Tampereen teknillinen yliopisto, rakennustekniikan laitos, rakennetekniikka
Editors: Vinha, J., Ruuska, T.
ISBN (Print): 978-952-15-3580-2
Keywords: Double skin facade, Energy efficiency, New renovation consepts, Innovative HVAC, Earth to air heat exchancer

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Lasitetun parvekkeen lämpötilan ja lämpöhäviöiden laskenta

General information

Publication status: Published
MoE publication type: B3 Non-refereed article in conference proceedings
Organisations: Department of Civil Engineering, Research group: Building Physics, Research group: Service Life Engineering of Structures
Contributors: Laukkarinen, A., Hilliaho, K.
Number of pages: 6
Pages: 181-186
Publication date: 20 Oct 2015

Host publication information

Title of host publication: Rakennusfysiikka 2015. Uusimmat tutkimustulokset ja hyvät käytännön ratkaisut. 20.-22.10.2015, Tampere
Publisher: Tampereen teknillinen yliopisto, rakennustekniikan laitos, rakennetekniikka
Editors: Vinha, J., Ruuska, T.
ISBN (Print): 978-952-15-3580-2

Publication series

Name: Rakennustekniikan laitos. Rakennetekniikka. Seminaarijulkaisu
No.: 4
ASJC Scopus subject areas: Building and Construction, Civil and Structural Engineering

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Lessons for data-based value creation

General information

Publication status: Published
MoE publication type: B3 Non-refereed article in conference proceedings
Organisations: Industrial and Information Management, Research group: Business Data Research Group, Research group: Knowledge and Learning Research Center
Contributors: Myllärniemi, J., Pekkola, S., Helander, N.
Number of pages: 10
Pages: 398-407
Publication date: 7 Jun 2017

Host publication information

Title of host publication: 12th International Forum on Knowledge Asset Dynamics, IFKAD 2017
ISBN (Print): 978-88-96687-10-9

Publication series

Name: Proceedings IFKAD
ISSN (Print): 2280-787X

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Low-cost 3D lidar for the mapping of autonomous mobile work machine

Autonomous mobile work machines need the capability of sensing and mapping the surrounding area. Machines can utilize several sensors such as laser scanners and cameras for this purpose. The challenge in their use is the relatively high price compared to the value of mobile work machines, and the sensitivity of sensors to harsh operating conditions. This paper presents a low-cost 3D LIDAR for the sensing and mapping of autonomous work machine, which is based on 2D laser scanner and electric motor drive that rotates the scanner. The 2D laser scanner provides range and intensity values from the measured plane and the controller of electric motor provides the rotation angle and rotation speed of the scanner. By combining these values together with navigation data of the machine, 3D point cloud of the surrounding area can be created. This paper presents the development of hardware and control system for the rotating of the 2D laser scanner. Their integration to autonomous mobile work machine and example of mapping results are also presented.

General information

Publication status: Published
MoE publication type: B3 Non-refereed article in conference proceedings
Organisations: Department of Intelligent Hydraulics and Automation, Research group: Fluid power automation in mobile machines, Tampere University of Technology
Contributors: Kolu, A., Rajapolvi, K., Hyvönen, M., Multanen, P., Huhtala, K.
Number of pages: 10
Publication date: 2015

Host publication information

Title of host publication: Proceedings of the Fourteenth Scandinavian International Conference on Fluid Power, SICFP15. May 20-22, 2015. Tampere, Finland
ISBN (Electronic): 978-952-15-3530-7
Keywords: Autonomous mobile machine, Mobile robotics, 3D LIDAR, CANopen, Measurement data time synchronization

Bibliographical note

AUX=iha,"Rajapolvi, Kimmo"

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Maanvastaisten seinien lämpö- ja kosteustekninen toiminta

General information

Publication status: Published
MoE publication type: B3 Non-refereed article in conference proceedings
Organisations: Civil Engineering, Research group: Building Physics, Tampere University of Technology, Laboratory of Civil Engineering
Contributors: Laukkarinen, A., Heiskanen, R., Vinha, J.
Number of pages: 6
Pages: 71-76
Publication date: 24 Oct 2017

Host publication information

Title of host publication: Rakennusfysiikka 2017. Uusimmat tutkimustulokset ja hyvät käytännön ratkaisut : 24.-26.10.2017, Tampere
Volume: 1
Place of publication: Tampere
Publisher: Tampereen teknillinen yliopisto, Rakennustekniikka, Rakennusfysiikka
Editors: Vinha, J., Kivioja, H.
ISBN (Print): 978-952-15-4022-6

Publication series

Name: Tampereen teknillinen yliopisto. Rakennustekniikka. Rakennusfysiikka.
ASJC Scopus subject areas: Civil and Structural Engineering, Building and Construction

Bibliographical note

INT=rak,"Heiskanen, Roosa"

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Menetelmä parvekelasien ääneneristävyyden mitoittamiseksi liikennemelualueilla

General information

Publication status: Published
MoE publication type: B3 Non-refereed article in conference proceedings
Organisations: Department of Civil Engineering, Research group: Building Acoustics
Contributors: Kovalainen, V., Kylliäinen, M.
Number of pages: 6
Pages: 617-622
Publication date: 22 Oct 2015

Host publication information

Title of host publication: Rakennusfysiikka 2015
Publisher: Tampereen teknillinen yliopisto, rakennustekniikan laitos, rakennetekniikka
ISBN (Print): 978-952-15-3580-2
ASJC Scopus subject areas: Civil and Structural Engineering, Acoustics and Ultrasonics
Keywords: acoustics, noise control

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Mykkäelokuvakauden elokuvateatterien huoneakustiikka

General information

Publication status: Published
MoE publication type: B3 Non-refereed article in conference proceedings
Organisations: Department of Civil Engineering, Research group: Building Acoustics, Tampere University of Technology, University of Turku
Contributors: Saarelainen, J., Kylliäinen, M., Hupaniittu, O.
Number of pages: 6
Pages: 83-88
Publication date: 1 Sep 2015

Host publication information

Title of host publication: Akustiikkapäivät 2015
Place of publication: Kuopio
Publisher: Akustinen seura

Publication series

Name: Akustiikkapäivät
ISSN (Print): 1236-8202
ASJC Scopus subject areas: Acoustics and Ultrasonics

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Numerically Efficient Flow Model for On/Off Valves

General information

Publication status: Published
MoE publication type: B3 Non-refereed article in conference proceedings
Organisations: Department of Intelligent Hydraulics and Automation, Research group: Digital hydraulics
Contributors: Linjama, M., Siivonen, L., Huova, M.
Pages: 164-172
Publication date: Feb 2015

Host publication information

Title of host publication: Proceedings of the Seventh Workshop on Digital Fluid Power
Place of publication: Linz, Austria
Publisher: LCM GmbH
Editors: Scheidl, R., Winkler, B., Kogler, H.
ISBN (Print): 978-3-200-04014-4

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Onnistumistekijät valtion tukemissa homekorjaushankkeissa

Kosteus- ja homevaurioiden sekä muiden sisäilmaongelmien korjaaminen on haastavaa. Monet kuntien korjaushankkeet ovat epäonnistuneet poistamaan käyttäjien kokemat sisäilmaongelmat. Usein syynä on, että korjaukset eivät ole riittävän kokonaisvaltaisia tai laadunvarmistus on puutteellista. Yleinen syy suppeisiin korjauksiin ja puutteelliseen laadunvarmistukseen on, että hankkeen suunnittelua ei ole tehty riittävän perusteellisesti. Puutteellinen suunnittelu johtuu usein riittämättömistä kuntotutkimuksista tai siitä, etteivät niissä tehdyt havainnot saati puutteet ole olleet korjaussuunnittelijan tiedossa. Tyypillisesti kuntotutkimusten puuttumiseen, tiedon hukkumiseen ja puutteelliseen hankevalmisteluun on syynä tilaajan osaamattomuus tai joissakin tapauksissa myös poliittinen ja taloudellinen päätöksenteko, johon tässä artikkelissa ei kuitenkaan perehdytä. Väärin valittu toteutustapa, kosteusteknisiä riskejä sisältävä suunnitteluratkaisu, vakavat tietokatkokset, isot yllätykset purku-/korjausvaiheessa, rakentamisvirheet tai huoltotehtävien laiminlyönti tulevat kunnalle huomattavasti kalliimmiksi, kuin perusteellinen kuntotutkimus, huolellinen toteutustapojen vertailu, suunnitelmien ulkopuolinen tarkastus, toteutuksen laadunvarmistus, aktiivinen valvonta ja suunnitelmallinen kiinteistönpito.

General information

Publication status: Published
MoE publication type: B3 Non-refereed article in conference proceedings
Organisations: Department of Civil Engineering, Research group: Service Life Engineering of Structures
Contributors: Marttila, T., Suonketo, J., Kero, P., Annila, P.
Number of pages: 6
Pages: 253-258
Publication date: 20 Oct 2015

Host publication information

Title of host publication: Rakennusfysiikka 2015: Uusimmat tutkimustulokset ja hyvät käytännön ratkaisut, 20-22.10.2015, Tampere
Volume: 4
Place of publication: Tampere
Publisher: Tampereen teknillinen yliopisto, rakennustekniikan laitos, rakennetekniikka
Editors: Vinha, J., Ruuska, T.
Article number: 152
ISBN (Print): 978-952-15-3580-2

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

On the choice of damage variable in the continuum fatigue model based on a moving endurance surface

This paper considers two different damage formulations for modelling high-cycle fatigue of materials. The underlying fatigue model is formulated within continuum mechanics framework with the concept of a moving endurance surface. Such a model has a unique feature that it allows for the concepts of fatigue limits and damage accumulation during the load history thus avoiding cycle-counting techniques. A Scalar and tensor type of damage variables are utilized with an essentially similar type of damage evolution law. The tensor damage model capable of accounting for damage induced anisotropy is based on the gradient of the endurance surface. The performance of the scalar and tensor damage formulations are compared with different multidimensional stress histories.

General information

Publication status: Published
MoE publication type: B3 Non-refereed article in conference proceedings
Organisations: Department of Mechanical Engineering and Industrial Systems, Research area: Applied Mechanics
Contributors: Saksala, T., Holopainen, S., Kouhia, R.
Number of pages: 6
Pages: 57-62
Publication date: May 2015

Host publication information

Title of host publication: Proceedings of the XII Finnish Mechanics Day
ISBN (Print): 978-952-93-5608-9
ISBN (Electronic): 978-952-93-5608-9
Keywords: high-cycle fatigue modelling, isotropic damage, anisotropic damage, endurance surface, evolution equations

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

On the effect of damping on stability of non-conservative systems

Anomalous damping-induced destabilization is investigated in a simple, small system consisting of a double pendulum with springs. Linearized and fully non-linear results are presented.

General information

Publication status: Published
MoE publication type: B3 Non-refereed article in conference proceedings
Organisations: Department of Mechanical Engineering and Industrial Systems, Research area: Applied Mechanics, Tampere University of Technology
Contributors: Jeronen, J., Kouhia, R.
Number of pages: 82
Pages: 77
Publication date: 2015

Host publication information

Title of host publication: Proceedings of the XII Finnish Mechanics Days : Suomen XII mekaniikkapäivien esitelmät
Publisher: Rakenteiden Mekaniikan Seura ry
Editors: Kouhia, R., Mäkinen, J., Pajunen, S., Saksala, T.
ISBN (Print): 978-952-93-5608-9
ISBN (Electronic): 978-952-93-5609-6

Bibliographical note

AUX=mei,"Jeronen, Juha"

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Paine-erot Pirkanmaan ja Helsingin julkisissa palvelurakennuksissa

General information

Publication status: Published
MoE publication type: B3 Non-refereed article in conference proceedings
Organisations: Civil Engineering, Research group: Building Physics, Tampere University of Technology, Laboratory of Civil Engineering
Contributors: Kauppinen, A., Kiviste, M., Pirhonen, J., Vinha, J.
Number of pages: 7
Pages: 215-221
Publication date: 24 Oct 2017

Host publication information

Title of host publication: Rakennusfysiikka 2017. Uusimmat tutkimustulokset ja hyvät käytännön ratkaisut : 24-26.10.2017, Tampere
Volume: 1
Place of publication: Tampere
Publisher: Tampereen teknillinen yliopisto, Rakennustekniikka, Rakennusfysiikka
Editors: Vinha, J., Kivioja, H.
ISBN (Print): 978-952-15-4022-6

Publication series

Name: Tampereen teknillinen yliopisto. Rakennustekniikka. Rakennusfysiikka.
ASJC Scopus subject areas: Civil and Structural Engineering

Bibliographical note

INT=RAK, "Pirhonen, Joni"

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Performance management practices in construction business - a service recovery perspective

This paper studies how service recovery perspective can be utilized in order to improve performance management practices in construction industry in Finland. The purpose is to redesign service recovery encounters to better handle negative customer experiences when service failure or other problem has occurred. From performance management point of view, the key challenge is to manage negative customer experiences in order to avoid negative impacts on the performance of the company. The analysis focuses on how negative customer encounters can be used as a source of learning and thus, improving customer and employee satisfaction and the whole image of the industry.
Literature on service failure and recovery discusses various components of unsuccessful customer experience, their cognitive elements and ways of reacting to service failures. However, this discussion is separated from the business performance management literature. Theoretically the paper combines methods from service management and performance management and contributes with its holistic approach to the role of service quality in construction business.
Empirical data was gathered first by interviewing 16 employees and customer engaging to customer service in 4 construction companies. The purpose was to identify the key pitfalls and practices of service recovery encounters in three main phases of the customer journey: 1) buying and planning a new home, 2) construction period, and 3) living in a new home). After interviews, two workshops in two companies were organized to reflect findings and to improve and create new service recovery encounter practices.
As a result, three performance management practices were identified: 1) guideline for customer recovery encounters, 2) developing systematic service recovery process and related quality metrics, and 3) developing the service oriented attitude and recovery of employees.

General information

Publication status: Published
MoE publication type: B3 Non-refereed article in conference proceedings
Organisations: Department of Information Management and Logistics, Research group: Novi
Contributors: Vuolle, M., Sillanpää, V.
Number of pages: 17
Publication date: 2015

Host publication information

Title of host publication: 8th Conference on Performance Measurement and Management Control
Publisher: The European Institute for Advanced Studies in Management, EIASM

Publication series

Name: Conference on Performance Measurement and Management Control
ISSN (Print): 2295-1660

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Puukerrostalon työmaavaiheen lämpö- ja kosteusolosuhteiden mittaukset

General information

Publication status: Published
MoE publication type: B3 Non-refereed article in conference proceedings
Organisations: Civil Engineering, Research group: Building Physics, Research group: Capacity Development of Water and Environmental Services CADWES, Laboratory of Civil Engineering, Tampere University of Technology
Contributors: Laukkarinen, A., Musakka, S., Penttilä, O., Teriö, O., Vinha, J.
Number of pages: 6
Pages: 167-172
Publication date: 24 Oct 2017

Host publication information

Title of host publication: Rakennusfysiikka 2017. Uusimmat tutkimustulokset ja hyvät käytännön ratkaisut : 24.-26.10.2017, Tampere
Volume: 1
Place of publication: Tampere
Publisher: Tampereen teknillinen yliopisto, Rakennustekniikka, Rakennusfysiikka
Editors: Vinha, J., Kivioja, H.
ISBN (Print): 978-952-15-4022-6

Publication series

Name: Tampereen teknillinen yliopisto. Rakennustekniikka. Rakennusfysiikka.
ASJC Scopus subject areas: Civil and Structural Engineering, Building and Construction

Bibliographical note

INT=RAK, "Musakka, Sami"
INT=RAK, "Penttilä, Olavi"

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Puukerrostalorakentamisen kosteudenhallinta

General information

Publication status: Published
MoE publication type: B3 Non-refereed article in conference proceedings
Organisations: Civil Engineering, Research group: Capacity Development of Water and Environmental Services CADWES, Research group: Building Physics, Tampere University of Technology, Laboratory of Civil Engineering
Contributors: Teriö, O., Penttilä, O., Laukkarinen, A., Musakka, S., Vinha, J.
Number of pages: 6
Pages: 173-178
Publication date: 24 Oct 2017

Host publication information

Title of host publication: Rakennusfysiikka 2017. Uusimmat tutkimustulokset ja hyvät käytännön ratkaisut : 24.-26.10.2017, Tampere
Volume: 1
Place of publication: Tampere
Publisher: Tampereen teknillinen yliopisto, Rakennustekniikka, Rakennusfysiikka
Editors: Vinha, J., Kivioja, H.
ISBN (Print): 978-952-15-4022-6

Publication series

Name: Tampereen teknillinen yliopisto. Rakennustekniikka. Rakennusfysiikka.
ASJC Scopus subject areas: Civil and Structural Engineering, Building and Construction

Bibliographical note

INT=rak,"Penttilä, Olavi"
INT=rak,"Musakka, Sami"

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Puurunkoisten tuuletettujen yläpohjien kosteustekninen toiminta

General information

Publication status: Published
MoE publication type: B3 Non-refereed article in conference proceedings
Organisations: Department of Civil Engineering, Research group: Building Physics
Contributors: Junttila, H., Laukkarinen, A., Vinha, J.
Number of pages: 6
Pages: 77-82
Publication date: 22 Oct 2015

Host publication information

Title of host publication: Rakennusfysiikka 2015. Uusimmat tutkimustulokset ja hyvät käytännön ratkaisut. 20.-22.10.2015, Tampere.
Place of publication: Tampere
Publisher: Tampereen teknillinen yliopisto, rakennustekniikan laitos, rakennetekniikka
Editors: Vinha, J., Ruuska, T.
ISBN (Print): 978-952-15-3580-2

Publication series

Name: Rakennustekniikan laitos. Rakennetekniikka. Seminaarijulkaisu
No.: 4
ASJC Scopus subject areas: Building and Construction, Civil and Structural Engineering

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Puuvälipohjien akustiset ominaisuudet

General information

Publication status: Published
MoE publication type: B3 Non-refereed article in conference proceedings
Organisations: Department of Civil Engineering, Research group: Building Acoustics, A-Insinöörit Suunnittelu Oy
Contributors: Latvanne, P., Kylliäinen, M.
Number of pages: 6
Pages: 567-572
Publication date: 22 Oct 2015

Host publication information

Title of host publication: Rakennusfysiikka 2015
Publisher: Tampereen teknillinen yliopisto, rakennustekniikan laitos, rakennetekniikka
ISBN (Print): 978-952-15-3580-2
ASJC Scopus subject areas: Civil and Structural Engineering, Acoustics and Ultrasonics

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Pystytäänkö haitallisia ilmanvaihtovikoja havaitsemaan ja poistamaan

General information

Publication status: Published
MoE publication type: B3 Non-refereed article in conference proceedings
Organisations: Department of Civil Engineering, Research group: Real estate development, VTT
Contributors: Heljo, J., Kauppinen, T.
Number of pages: 6
Pages: 325-330
Publication date: 20 Oct 2015

Host publication information

Title of host publication: Rakennusfysiikka 2015. Uusimmat tutkimustulokset ja hyvät käytännön ratkaisut. 20.-22.10.2015, Tampere
Place of publication: Tampere
Publisher: