Find Research Outputs

2015

Silicon: Potential Thermoelectric Material ?

Ahopelto, J., 2015, Workshop report. CECAM

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientific

thermoelectric materials
silicon
thermal conductivity
figure of merit
Seebeck effect

Silicon Membranes for Thermoelectrics

Shchepetov, A., Prunnila, M. & Ahopelto, J., 2015.

Research output: Contribution to conferenceConference AbstractScientific

Open Access
membranes
silicon
thermoelectric materials
phonons
cooling

Silicon Nanomembranes for Phononics

Ahopelto, J., 2015.

Research output: Contribution to conferenceConference articleScientific

5 Citations (Scopus)

Silicon photonics for optical connectivity: Small footprint with large dimensions

Aalto, T., Cherchi, M., Harjanne, M., Ylinen, S. & Kapulainen, M., 1 Jan 2015, 2015 IEEE Optical Interconnects Conference (OI). Institute of Electrical and Electronic Engineers IEEE, p. 40-41 2 p. 7115676

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Silicon
footprints
Photonics
photonics
optical interconnects

Simple heuristic approach for training of type-2 NEO-fuzzy neural network

Todorov, Y. & Terziyska, M., 28 Jul 2015, Proceedings of the 2015 20th International Conference on Process Control, PC 2015. Fikar, M. & Kvasnica, M. (eds.). Institute of Electrical and Electronic Engineers IEEE, p. 278-283 7169976

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Fuzzy neural networks
Fuzzy Neural Network
Fuzzy sets
Backpropagation
Time series
2 Citations (Scopus)

Simple thermodynamic derivation of the electrocapillary equations

Makkonen, L., 2015, In : Surface Science. 635, p. 61-63

Research output: Contribution to journalArticleScientificpeer-review

Open Access
Charge density
derivation
Thermodynamics
thermodynamics

SIMPRO Task 2.1: Optimisation of diesel-generating set vibration levels with Dakota

Katajamäki, K., 2015, VTT Technical Research Centre of Finland. 16 p. (VTT Research Report, Vol. VTT-R-04967-15).

Research output: Book/ReportReport

Open Access
Product design
Vibration analysis
Structural analysis
Product development
Computer hardware

SIMPRO Task 2.2: Topology optimization in HPC environment

Komi, E. & Hämäläinen, J., 2015, VTT Technical Research Centre of Finland. 28 p. (VTT Research Report, Vol. VTT-R-00527-15).

Research output: Book/ReportReport

Open Access
Shape optimization
Cluster computing
Launching
Design of experiments
Engines

SIMPRO - Task-2-1: Guiderail optimization by HEEDS

Wennerkoski, J., 2015, VTT Technical Research Centre of Finland. 45 p. (VTT Research Report; No. VTT-R-04432-15).

Research output: Book/ReportReport

Open Access
Elevators
Finite element method
Structural optimization

SIMPRO - Task-2-1: Guide rail optimization by Isight

Avikainen, T., 2015, VTT Technical Research Centre of Finland. 22 p. (VTT Research Report, Vol. VTT-R-04402-15).

Research output: Book/ReportReport

Open Access
Rails
Elevators
Wheels
Computer aided engineering
Design of experiments

Simulating extreme winter storm scenarios

Jähi, M. & Broas, P., 2015.

Research output: Contribution to conferenceConference articleScientific

Outages
Electricity
Hypothermia
Cooling
Planning

Simulating fast transients with fuel behavior feedback with the Serpent 2 Monte Carlo Code

Valtavirta, V., Ikonen, T., Viitanen, T. & Leppänen, J., 2015, Proceedings of the international conference on physics of reactors: PHYSOR2014. Vol. JAEA-Conf 2014-003. 12 p. 1105897

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Open Access

Simulation-based approach for studying the balancing of local smart grids with electric vehicle batteries

Latvakoski, J., Mäki, K., Ronkainen, J., Julku, J. & Koivusaari, J., 2015, In : Systems. 3, 3, p. 81-108

Research output: Contribution to journalArticleScientificpeer-review

Open Access
Electric vehicles
Costs
Carbon dioxide
Pollution
Battery electric vehicles
1 Citation (Scopus)

Simulation-based optimization for energy and buildings

Hasan, A., Palonen, M. & Hamdy, M., 2015, Renewable Energy in the Service of Mankind: Selected Topics from the World Renewable Energy Congress WREC 2014. Springer, Vol. 1. p. 503-513

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Cooling systems
Heating
Multiobjective optimization
Air quality
Evolutionary algorithms

Simulation based studies of machine-to-machine communications

Osipov, E., Riliskis, L., Lehikoinen, T., Kämäräinen, J. & Pellinen, M., 26 Aug 2015, Wireless Networking for Moving Objects: Protocols, Architectures, Tools, Services and Applications. Springer, p. 239-254 (Lecture Notes in Computer Science, Vol. 8611).

Research output: Chapter in Book/Report/Conference proceedingChapter or book articleProfessional

Ultra-wideband (UWB)
Large scale systems
Automation
Communication
Machine-to-machine communication

Simulation lifecycle and data management

Sibois, R. & Muhammad, A., 2015, VTT Technical Research Centre of Finland. 22 p. (VTT Research Report, Vol. VTT-R-02486-15).

Research output: Book/ReportReport

Open Access
Information management
Electronic data interchange
Computational methods
Middleware
Product design

Simulation lifecycle and data management (case studies)

Sibois, R., Avikainen, T. & Muhammad, A., 2015, VTT Technical Research Centre of Finland. 28 p. (VTT Research Report, Vol. VTT-R-03500-15).

Research output: Book/ReportReport

Open Access
Information management
Product development
Electronic data interchange
Product design
Engineers
2 Citations (Scopus)

Simulation of the temperature and grain size dependent uniaxial compressive strength using 3D wing crack model

Kolari, K., 2015, Proceedings of the 23rd International Conference on Port and Ocean Engineering under Arctic Conditions. 13 p. (POAC Proceedings).

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Open Access
Compressive strength
Cracks
Ice
Friction
Temperature

Simulation Toolbox Development for Fire PRA

Hostikka, S., Mangs, J., Kling, T., Paajanen, A. & Pinomaa, T., 2015, International Workshop on FIRE Probabilistic Risk Assessment (PRA): Workshop Proceedings. p. 145-159 (Nuclear Safety; No. NEA/CSNI/R(2015)12).

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientific

Open Access
Fires
Smoke
Electronic equipment
Computer simulation

Sintering of nano structural WC with cobalt matrix synthesised from soluble raw materials

Lagerbom, J., Kanerva, U., Karhu, M., Turunen, E., Lotta, J., Cura, E. & Hannula, S-P., 2015, EURO PM2015 congress proceedings. European Power Metallurgy Association EPMA

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Cobalt
Powders
Raw materials
Sintering
Carbides
5 Citations (Scopus)

Situational awareness for security adaptation in industrial control systems

Evesti, A. & Frantti, T., 10 Aug 2015, Ubiquitous and Future Networks (ICUFN), 2015 Seventh International Conference on. Institute of Electrical and Electronic Engineers IEEE, p. 1-6 7182484

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Control systems
Decision making
Critical infrastructures
Fuzzy set theory
Security systems

Sizing of fatigue cracks using different eddy current techniques and simulation

Lahdenperä, K., 2015, VTT Technical Research Centre of Finland. 41 p. (VTT Research Report, Vol. VTT-R-04115-15).

Research output: Book/ReportReport

Open Access

Small business challenges in developing value partner relationships

Valjakka, T. & Lappalainen, I., 2015.

Research output: Contribution to conferenceConference articleScientific

Small business
Value proposition
Service-dominant logic
Transformation process
Logic
5 Citations (Scopus)

Small cell based 5G test network (5GTN)

Latva-aho, M., Pouttu, A., Hekkala, A., Harjula, I. & Mäkelä, J., 19 Apr 2015, Wireless Communication Systems (ISWCS), 2015 International Symposium on. Institute of Electrical and Electronic Engineers IEEE, p. 231-235

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Testing
Industry

Smart City: Research highlights

Airaksinen, M. & Kokkala, M., 2015, VTT Technical Research Centre of Finland. 134 p. (VTT Research Highlights; No. 12).

Research output: Book/ReportBook (editor)

Open Access
Environmental impact
Carbon footprint
Industry
Innovation
Smart city

Smart metering cyber security

Savolainen, P., Koponen, P. & Sarsama, J., 2015, Smart city: Research highlights. VTT Technical Research Centre of Finland, p. 66-67 (VTT Research Highlights; No. 12).

Research output: Chapter in Book/Report/Conference proceedingChapter or book articleProfessional

Open Access

Social innovations: manifested in new services and in new system level interactions

Toivonen, M., 2015, Service Systems Science. Kijima, K. (ed.). Springer, p. 83-95

Research output: Chapter in Book/Report/Conference proceedingChapter or book articleProfessional

Social innovation
New services
Interaction
System innovation
Service innovation

Social media in networked innovation between b-to-b companies

Antikainen, M. & Valkokari, K., 2015, 16th International CINet Conference: Pursuing Innovation Leadership.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientific

Innovation
Social media
Business environment
Employees

Social robots, elderly care and the need for recognition

Niemelä, M., Laitinen, A. & Pirhonen, J., 2015.

Research output: Contribution to conferenceConference articleScientific

Socio-economic evaluation of a transport safety agency: validating accountability and benefits

Mononen, P. & Leviäkangas, P., 2015, Proceedings of the XXVth World Road Congress - Seoul. 16 p.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientific

Economics
Costs
Productivity
5 Citations (Scopus)

Soft sensor design for estimation of SOFC stack temperatures and axygen-to-barbon ratio

Dolenc, B., Vrecko, D., Juricic, D., Pohjoranta, A., Kiviaho, J. & Pianese, C., 2015, In : ECS Transactions. 68, 1, p. 2625-2636

Research output: Contribution to journalArticleScientificpeer-review

Solid oxide fuel cells (SOFC)
Sensors
Gas fuels
Thermal gradients
Temperature
105 Citations (Scopus)

Software defined mobile networks: concept, survey, and research directions

Chen, T., Matinmikko, M., Chen, X., Zhou, X. & Ahokangas, P., 2015, In : IEEE Communications Magazine. 53, 11, p. 126-133

Research output: Contribution to journalArticleScientificpeer-review

Wireless networks
Internet
Network management
Network architecture
Telecommunication traffic

Solid biomass fuel terminal concepts and a cost analysis of a satellite terminal concept

Virkkunen, M., Kari, M., Hankalin, V. & Nummelin, J., 2015, Espoo: VTT Technical Research Centre of Finland. 69 p. (VTT Technology; No. 211).

Research output: Book/ReportReport

Open Access
Biomass
Satellites
Costs
Wood fuels
Comminution
18 Citations (Scopus)

Solid oxide fuel cell stack temperature estimation with data-based modeling: Designed experiments and parameter identification

Pohjoranta, A., Halinen, M., Pennanen, J. & Kiviaho, J., 2015, In : Journal of Power Sources. 277, p. 464-473

Research output: Contribution to journalArticleScientificpeer-review

Open Access
parameter identification
solid oxide fuel cells
Solid oxide fuel cells (SOFC)
Identification (control systems)
Experiments
8 Citations (Scopus)

Solution composition and particle size effects on the dissolution and solubility of a ThO2 microstructural analogue for UO2 matrix of nuclear fuel

Myllykylä, E., Lavonen, T., Stennett, M., Corkhill, C., Ollila, K. & Hyatt, N., 2015, In : Radiochimica Acta. 103, 8, p. 565-576

Research output: Contribution to journalArticleScientificpeer-review

Solutions for control of nitrogen discharges at mines and quarries: Miniman project final report

Jermakka, J., Merta, E., Mroueh, U-M., Arkkola, H., Eskonniemi, S., Wendling, L., Laine-Ylijoki, J., Sohlberg, E., Heinonen, H., Kaartinen, T., Puhakka, J., Peltola, M., Papirio, S., Lakaniemi, A-M., Zou, G., Ylinen, A., di Capua, F., Neitola, R., Gustafsson, H., Korhonen, T. & 4 others, Karlsson, T., Kauppila, T., Laakso, J. & Mörsky, P., 2015, Espoo: VTT Technical Research Centre of Finland. 113 p. (VTT Technology; No. 225).

Research output: Book/ReportReport

Open Access
quarry
nitrogen
explosive
nitrification
denitrification
8 Citations (Scopus)

Sorption of radioiodide in an acidic nutrient-poor boreal bog: Insights into the microbial impact

Lusa, M., Bomberg, M., Aromaa, H., Knuutinen, J. & Lehto, J., 2015, In : Journal of Environmental Radioactivity. 143, p. 110-122

Research output: Contribution to journalArticleScientificpeer-review

Wetlands
Iodides
bog
iodide
Nutrients

Spatiotemporal validation of wind power output

Florita, A., Jie, Z., Bri-Mathias, H. & Jari, M., 2015, 14th International Workshop on Large-Scale Integration of Wind Power into Power Systems as well as on Transmission Networks for Offshore Wind Plants. Energynautics GmbH

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientific

Special section: new perspectives on sustainability. Introduction

Toivonen, M., 2015, In : Economics and Policy of Energy and the Environment. 3, p. 19-27

Research output: Contribution to journalReview ArticleScientificpeer-review

Sustainable development
sustainability
water economics
Energy resources
energy resource
6 Citations (Scopus)

Spectral characterization of a frequency comb based on cascaded quadratic nonlinearities inside an optical parametric oscillator

Ulvila, V., Phillips, C. R., Halonen, L. & Vainio, M., 10 Sep 2015, In : Physical Review A: Atomic, Molecular, and Optical Physics. 92, 3, 033816.

Research output: Contribution to journalArticleScientificpeer-review

parametric amplifiers
nonlinearity
spacing
continuous radiation
synchronism
22 Citations (Scopus)

Spectrum and license flexibility for 5G networks

Kliks, A., Holland, O., Basaure, A. & Matinmikko, M., 2015, In : IEEE Communications Magazine. 53, 7, p. 42-49

Research output: Contribution to journalArticleScientificpeer-review

Wireless networks
Availability

Spectrum database for coexistence of terrestrial FS and FSS satellite systems in the 17.7-19.7 GHz band

Höyhtyä, M. & Mämmelä, A., 2015, Ka and Broadband Communications Conference. 10 p. (Ka and Broadband Communications Conference).

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientific

Satellites
Filling stations
Power transmission
Spatial distribution
Telecommunication links

Spectrum occupancy measurements in the 2.3-2.4 GHz band: Guidelines for licensed shared access in Finland

Höyhtyä, M., Matinmikko, M., Chen, X., Hallio, J., Auranen, J., Ekman, R., Röning, J., Engelberg, J., Kalliovaara, J., Taher, T., Riaz, A. & Roberson, D., 2015, In : EAI Endorsed Transactions on Cognitive Communications. 1, 2, 11 p., e2.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
Mobile telecommunication systems
Standardization
Economics
Communication
Business development
Costs

Stability preservation and power management in autonomous microgrids using adaptive nonlinear droop scheme

Divshali, P. H., Nourollah, S. & PIRAYESH, A., 2015, In : Turkish Journal of Electrical Engineering and Computer Sciences. 23, p. 1958–1980

Research output: Contribution to journalArticleScientificpeer-review

Open Access
Electric potential
Distributed power generation
Reactive power
Particle swarm optimization (PSO)
Telecommunication links

Stabilization of emulsions (and foams) with nanocellulose materials

Stenius, P., Tammelin, T., Gestranius, M. & Sjöblom, J., 2015.

Research output: Contribution to conferenceConference articleScientific

Emulsions
Cellulose
Foams
Stabilization
Nanocrystals
5 Citations (Scopus)

Stable distributed P2P protocols based on random peer sampling

Oguz, B., Anantharam, V. & Norros, I., 2015, In : IEEE/ACM Transactions on Networking. 23, 5, p. 1444-1456

Research output: Contribution to journalArticleScientificpeer-review

Sampling
Lyapunov functions

Staged implementation of alternative processes for an integrated steel mill to improve performance and reduce CO2 emissions

Onarheim, K. & Arasto, A., 2015.

Research output: Contribution to conferenceConference PosterScientific

Iron and steel plants
Blast furnaces
Gases
Calorific value
Reducing agents

Staged implementation of alternative processes for an integrated steel mill to improve performance and reduce CO2 emissions

Onarheim, K. & Arasto, A., 2015.

Research output: Contribution to conferenceConference AbstractScientific

Iron and steel plants
Blast furnaces
Gases
Calorific value
Reducing agents

Standardit kiinteille biopolttoaineille

Alakangas, E. & Valtanen, J., 2015, In : BioEnergia. 2, p. 11-12

Research output: Contribution to journalArticleProfessional