Find Research Outputs

2004

Development of SQUID Amplifier and AC-biased Bolometer for Detection of Sub-mm Radiation

Penttilä, J. S., Virtanen, A., Nevala, M., Kinnunen, K., Luukanen, A., Hassel, J., Kiviranta, M., Helistö, P., Maasilta, I. & Seppä, H., 2004, URSI/IEEE XXIX Convention on Radio Science. Espoo: VTT, p. 139-142 (VTT Symposium; no. 235).

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

Open Access
bolometers
alternating current
amplifiers
interference
room temperature
1 Citation (Scopus)

Developments in assessing creep behaviour and creep life of components

Auerkari, P., Brown, T. B., Holdsworth, S., Hales, R., Klenk, A., Patel, R., Thomas, A., Tonti, A. & Vilhelmsen, T., 2004, In : Materials at High Temperatures. 21, 1, p. 61 - 64 4 p.

Research output: Contribution to journalArticleScientificpeer-review

Creep
Aging of materials
Defects
Testing
aging (materials)

Differentiaalinen 2.4 GHz oskillaattori: Diplomityö

Salminen, H., 2004, Espoo: Helsinki University of Technology. 63 p.

Research output: ThesisMaster's thesisTheses

26 Citations (Scopus)

Differential recognition of animal type β4-galactosylated and α3-fucosylated chito-oligosaccharides by two family 18 chitinases from Trichoderma harzianum

Boer, H., Munck, N., Natunen, J., Wohlfahrt, G., Söderlund, H., Renkonen, O. & Koivula, A., 2004, In : Glycobiology. 14, 12, p. 1303 - 1313 11 p.

Research output: Contribution to journalArticleScientificpeer-review

Chitinases
Trichoderma
Oligosaccharides
Animals
Substrates
41 Citations (Scopus)

Diode laser beam absorption in laser transformation hardening of low alloy steel

Pantsar, H. & Kujanpää, V., 2004, In : Journal of Laser Applications. 16, 3, p. 147 - 153 7 p.

Research output: Contribution to journalArticleScientificpeer-review

high strength steels
High strength steel
hardening
Laser beams
Hardening

Discovering plant secondary metabolite pathways – functional analysis of secondary metabolism related genes

Häkkinen, S. T., Rischer, H., Goossens, A., De Sutter, V., Seppänen-Laakso, T., Ritala, A., Inzé, D. & Oksman-Caldentey, K-M., 2004.

Research output: Contribution to conferenceConference articleScientific

secondary metabolites
metabolism
genes
methyl jasmonate
nicotine
disinfectants
dairies
bacteria
sodium hypochlorite
Mycobacterium

Distributed service platform for adaptive mobile services

Pakkala, D. & Latvakoski, J., 2004, Proceedings of the International Conference on Wireless Networks, ICWN '04, Volume 2 & Proceedings of the International Conference on Pervasive Computing and Communications, PCC'04. CSREA Press, p. 771 - 777

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

Diversity and abundance of Desulfovibrionaceae related populations in feces and saliva as detected by group-specific PCR-DGGE and FISH

Maukonen, J., Mättö, J. & Saarela, M., 2004, The Food, GI-tract Functionality and Human Health Cluster: 3rd PROEUHEALTH Workshop : Abstracts and posters. Espoo, p. 80-80 (VTT Symposium; no. 232).

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

Open Access
Desulfovibrio
Irritable Bowel Syndrome
Fluorescence In Situ Hybridization
Saliva
Feces
32 Citations (Scopus)

Diversity of Listeria monocytogenes isolates of human and food origin studied by serotyping, automated ribotyping and pulsed-field gel electrophoresis

Lukinmaa, S., Aarnisalo, K., Suihko, M-L. & Siitonen, A., 2004, In : Clinical Microbiology and Infection. 10, 6, p. 562 - 568 7 p.

Research output: Contribution to journalArticleScientificpeer-review

Ribotyping
Serotyping
Pulsed Field Gel Electrophoresis
Listeria monocytogenes
Food
2 Citations (Scopus)

Dosimetric comparison at FiR 1 using microdosimetry, ionisation chambers and computer simulation

Uusi-Simola, J., Serén, T., Seppälä, T., Kosunen, A., Auterinen, I. & Savolainen, S., 2004, In : Applied Radiation and Isotopes. 61, 5, p. 845 - 848 4 p.

Research output: Contribution to journalArticleScientificpeer-review

ionization chambers
computerized simulation
proportional counters
neutrons
dosage

Do we need to isolate pulp residual lignin for its structural characterization

Tamminen, T., Liitiä, T., Ohra-aho, T. & Hortling, B., 2004, p. 37-40.

Research output: Contribution to conferenceConference articleScientificpeer-review

9 Citations (Scopus)

Drilling of conventional cast stainless steel with HIPed NiTi coating

Paro, J., Gustafsson, T. E. & Koskinen, J., 2004, In : Journal of Materials Processing Technology. 153 - 154, p. 622 - 629 8 p.

Research output: Contribution to journalArticleScientificpeer-review

Stainless Steel
Drilling
Stainless steel
Machinability
Coatings
4 Citations (Scopus)

Drilling of X2CrNi 19 11 stainless steel with HIPed NiTi coating

Paro, J., Gustafsson, T. E. & Koskinen, J., 2004, In : Journal of Materials Processing Technology. 150, 3, p. 309 - 316 8 p.

Research output: Contribution to journalArticleScientificpeer-review

Stainless Steel
Drilling
Stainless steel
Machinability
Coatings
46 Citations (Scopus)

Drug release from starch-acetate microparticles and films with and without incorporated α-amylase

Tuovinen, L., Peltonen, S., Liikola, M., Hotakainen, M., Lahtela-Kakkonen, M., Poso, A. & Järvinen, K., 2004, In : Biomaterials. 25, 18, p. 4355 - 4362 8 p.

Research output: Contribution to journalArticleScientificpeer-review

Amylases
Starch
Pharmaceutical Preparations
Substitution reactions
Timolol

Drupa 2004 tuo mukanaan mielenkiintoisia uutuuksia: Katsaus pakkaustuotannon prepress-sovelluksiin

Lahtinen, P., 2004, In : GT-lehti. 2, p. 14-18

Research output: Contribution to journalArticleProfessional

E—A language for thread-level parallel programming on synchronous shared memory NOCs

Forsell, M., 2004, In : WSEAS Transactions on Computers. 3, 3, p. 807 - 812 6 p.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
Parallel programming
Data storage equipment
Parallel architectures
Computer programming
Computer programming languages

EEPROM cell design for molybdenum gate analog BECMOS process

Ronkainen, H. & Mellin, J., 2004, In : Physica Scripta. T114, p. 133 - 137 5 p.

Research output: Contribution to journalArticleScientificpeer-review

molybdenum
analogs
Capacitor
Analogue
Cell
88 Citations (Scopus)

Effect of baking method and fermentation on folate content of rye and wheat breads

Kariluoto, S., Vahteristo, L., Salovaara, H., Katina, K., Liukkonen, K-H. & Piironen, V., 2004, In : Cereal Chemistry. 81, 1, p. 134 - 139 6 p.

Research output: Contribution to journalArticleScientificpeer-review

Bread
baking
Folic Acid
folic acid
rye

Effect of berry phenolics on gastrointestinal microbes

Puupponen-Pimiä, R., Nohynek, L., Kähkönen, M., Heinonen, M. & Oksman-Caldentey, K-M., 2004, Polyphenols Communications 2004. Hoikkala, A. & Soidinsalo, O. (eds.). Helsinki: University of Helsinki, p. 347-348

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

small fruits
microorganisms
Rubus chamaemorus
extracts
raspberries
4 Citations (Scopus)

Effect of cell type on convergence of wave propagation schemes

Keränen, J., Koljonen, E., Tarhasaari, T. & Kettunen, L., 1 Mar 2004, In : IEEE Transactions on Magnetics. 40, 2, p. 1452-1455

Research output: Contribution to journalArticleScientificpeer-review

Wave propagation

Effect of high pressure treatment and enzymes on bilberry juice extraction

Lille, M., Mustranta, A., Mokkila, M. & Poutanen, K., 2004.

Research output: Contribution to conferenceConference PosterScientific

bilberries
high pressure treatment
juices
enzymes
pulp

Effect of high pressure treatment on cell wall polysaccharides of berries

Hilz, H., Lille, M., Schols, H. A., Poutanen, K. & Voragen, A. G. J., 2004.

Research output: Contribution to conferenceConference articleScientific

high pressure treatment
small fruits
polysaccharides
cell walls
juices

Effect of pH on viscosity of oat beta-glucan

Salmenkallio-Marttila, M., Suortti, T., Autio, K. & Poutanen, K., 2004, Proceedings of the 7th International Oat Conference. Helsinki, Finland, 2004.. Natural Resources Institute Finland, p. 138 1 p. (Agrifood Research Reports; no. 51).

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

Open Access
beta-glucans
oats
viscosity
molecular weight
oat bran
1 Citation (Scopus)

Effect of the H2 annealing on the electrical properties of In2O3-SnO2 thin films

Kololuoma, T., Johansson, L-S., Maaninen, A., Campbell, J. M. & Rantala, J. T., 2004, In : Journal of Sol-Gel Science and Technology. 32, 1-3, p. 179 - 183 5 p.

Research output: Contribution to journalArticleScientificpeer-review

Electric properties
electrical properties
Annealing
Thin films
Coatings

Effect of thermal stresses along crack surface on ultrasonic response

Virkkunen, I., Kemppainen, M., Pitkänen, J. & Hänninen, H., 2004, Quantitative Nondestructive Evaluation . American Institute of Physics AIP, Vol. 23. p. 1224-1231 (AIP Conference Proceedings; vol. 700).

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

Thermal load
Thermal stress
Ultrasonics
Cracks
Thermal fatigue
114 Citations (Scopus)

Effect of water activity on the release characteristics and oxidative stability of D-limonene encapsulated by spray drying

Soottitantawat, A., Yoshii, H., Furuta, T., Ohgawara, M., Forssell, P., Partanen, R., Poutanen, K. & Linko, P., 2004, In : Journal of Agricultural and Food Chemistry. 52, 5, p. 1269 - 1276 8 p.

Research output: Contribution to journalArticleScientificpeer-review

Spray drying
spray drying
oxidative stability
water activity
oxidation

Effects of biomass on dynamics of combustion in circulating fluidized beds

Tourunen, A., Häsä, H., Pitsinki, J., Jegoroff, M., Saastamoinen, J. & Hämäläinen, J., 2004, In : Thermal Science. 8, 2, p. 93 - 105 13 p.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
Fluidized beds
Biomass
Coal
Biofuels
Peat
30 Citations (Scopus)

Effects of gluten and transglutaminase on microstructure, sensory characteristics and instrumental texture of oat bread

Salmenkallio-Marttila, M., Roininen, K., Autio, K. & Lähteenmäki, L., 2004, In : Agricultural and Food Science. 13, p. 138 - 150 13 p.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
Transglutaminases
Glutens
protein-glutamine gamma-glutamyltransferase
Bread
gluten

Effects of high pressure processing and storage on bioactive compounds of berries

Lille, M., Ritala, A. & Puupponen-Pimiä, R., 2004, Polyphenols Communications 2004. Helsinki: University of Helsinki, p. 271-272

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

27 Citations (Scopus)

Effects of laccase-mediator combinations on wool

Lantto, R., Schönberg, C., Buchert, J. & Heine, E., 2004, In : Textile Reseach Journal. 74, 8, p. 713 - 717 5 p.

Research output: Contribution to journalArticleScientificpeer-review

Cystines
Laccase
Wool
Cystine
Tyrosine

Effects of rapid thermal annealing on deep levels in n-GaInP

Tukiainen, A., Dekker, J., Xiang, N. & Pessa, M., 2004, In : Physica Scripta. T114, p. 9 - 11 3 p.

Research output: Contribution to journalArticleScientificpeer-review

Annealing
annealing
Epitaxy
Phosphorus
Vacancy
21 Citations (Scopus)

Effects of saturation on the forces in induction motors with whirling cage rotor

Tenhunen, A., Holopainen, T. & Arkkio, A., 2004, In : IEEE Transactions on Magnetics. 40, 2, p. 766 - 769 4 p.

Research output: Contribution to journalArticleScientificpeer-review

Induction motors
Rotors
Saturation magnetization
Fluxes
Finite element method

Effects of various plant extracts on acid production by plaque and mutans streptococci

Söderling, E., Karjalainen, S., Lille, M., Nohynek, L., Autio, K. & Saarela, M., 2004, In : Caries Research. 38, p. 371

Research output: Contribution to journalOther journal contributionScientific

Streptococcus mutans
Plant Extracts
Acids
Seeds
Fruit

Efficacy of Disinection in Food Processing

Wirtanen, G. & Salo, S., 2004, DairyNET : Hygiene Control in Nordic Dairies. Espoo: VTT, p. 147-162

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

Open Access
83 Citations (Scopus)

Efficient purification of recombinant proteins using hydrophobins as tags in surfactant-based two-phase systems

Linder, M., Qiao, M., Laumen, F., Selber, K., Hyytiä, T., Nakari-Setälä, T. & Penttilä, M., 2004, In : Biochemistry. 43, 37, p. 11873-11882

Research output: Contribution to journalArticleScientificpeer-review

Recombinant Proteins
Surface-Active Agents
Purification
Proteins
Recombinant Fusion Proteins

Efficient wireless networking with advanced services and negotiated QoS

Frantti, T., Jurvansuu, M. & Mämmelä, A., 2004, Espoo: VTT. 110 p. (VTT Tiedotteita - Research Notes; no. 2248)

Research output: Book/ReportReportResearch

Open Access
Quality of service
OSI model
Correlation methods
Network layers
Radio systems
4 Citations (Scopus)

Electrical and mechanical properties of micromachined vacuum cavities

Kiihamäki, J., Ronkainen, H., Häärä, A. & Mattila, T., 2004, In : Physica Scripta. T114, p. 195 - 198 4 p.

Research output: Contribution to journalArticleScientificpeer-review

Electrical Properties
Silicon-on-insulator
Mechanical Properties
Vacuum
Cavity

Electromechanical interaction in rotordynamics of cage induction motors: Dissertation

Holopainen, T. P., 2004, Espoo: VTT. 86 p.

Research output: ThesisDissertationResearch

Open Access
Induction motors
Rotors
Electric machinery
Air
Impulse response
10 Citations (Scopus)

Electronic cooling and hot electron effects in heavily doped silicon-on-insulator film

Savin, A., Pekola, J., Prunnila, M., Ahopelto, J. & Kivinen, P., 2004, In : Physica Scripta. T114, p. 57 - 60 4 p.

Research output: Contribution to journalArticleScientificpeer-review

Silicon-on-insulator
hot electrons
Cooling
Semiconductors
coolers
16 Citations (Scopus)

Electron mobility in ultrathin silicon-on-insulator layers at 4.2 K

Prunnila, M., Ahopelto, J. & Gamiz, F., 2004, In : Applied Physics Letters. 84, 13, p. 2298 - 2300 3 p.

Research output: Contribution to journalArticleScientificpeer-review

electron mobility
insulators
silicon
film thickness
degradation
7 Citations (Scopus)

Electron-phonon heat transport in degenerate Si at low temperatures

Kivinen, P., Prunnila, M., Savin, A., Törmä, P., Pekola, J. & Ahopelto, J., 2004, In : Physica Status Solidi C: Conferences and Critical Reviews. 1, 11, p. 2848 - 2851 4 p.

Research output: Contribution to journalArticleScientificpeer-review

heat
electrons
heat transmission
phonons
mean free path
57 Citations (Scopus)

Electron transport in two-dimensional arrays of gold nanocrystals investigated by scanning electrochemical microscopy

Liljeroth, P., Vanmaekelbergh, D., Ruiz, V., Kontturi, K., Jiang, H., Kauppinen, E. I. & Quinn, B. M., 2004, In : Journal of the American Chemical Society. 126, 22, p. 7126 - 7132 7 p.

Research output: Contribution to journalArticleScientificpeer-review

Electrochemical Scanning Microscopy
Electron Transport
Gold
Nanoparticles
Nanocrystals

Elintarvikkeet, kylläisyys ja painonhallinta: Kirjallisuustutkimus

Liukkonen, K-H., Kauppinen, S., Karppinen, S., Karhunen, L., Autio, K. & Lähteenmäki, L., 2004, Espoo: VTT. 96 p. (VTT Tiedotteita - Research Notes; no. 2234)

Research output: Book/ReportReportResearch

Open Access
weight control
satiety
mink
diabetes
Olla
18 Citations (Scopus)

Embedded optical interconnect on printed wiring board

Karppinen, M., Mäkinen, J-T., Kataja, K., Tanskanen, A., Alajoki, T., Karioja, P., Immonen, M. & Kivilahti, J., 2004, Micro-Optics, VCSELs, and Photonic Interconnects. International Society for Optics and Photonics SPIE, p. 150-164 (Proceedings of SPIE; vol. 5453).

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

Emergence of Wireless Services: Business Actors and their Roles in Networked Component-based Development: Dissertation

Kallio, P., 2004, Espoo: VTT. 122 p.

Research output: ThesisDissertationResearch

Open Access
Service business
Business model
Service development
Revenue
Underdevelopment
21 Citations (Scopus)

Empirical evaluation of agile software development: the controlled case study approach

Salo, O. & Abrahamsson, P., 2004, Product Focused Software Process Improvement: PROFES 2004. Springer, p. 408-423 (Lecture Notes in Computer Science; vol. 3009).

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

Software engineering
Industry
Defects

Enantioselective antibody fragments: Dissertation

Nevanen, T., 2004, Espoo: VTT. 96 p.

Research output: ThesisDissertationResearch

Open Access
Immunoglobulin Fragments
Enantiomers
Antibodies
Molecules
Aluminum Oxide
86 Citations (Scopus)

Endogenous xylose pathway in Saccharomyces cerevisiae

Toivari, M. H., Salusjärvi, L., Ruohonen, L. & Penttilä, M., 1 Jun 2004, In : Applied and Environmental Microbiology. 70, 6, p. 3681-3686 6 p.

Research output: Contribution to journalArticleScientificpeer-review

Xylose
xylose
xylitol
Saccharomyces cerevisiae
D-Xylulose Reductase
52 Citations (Scopus)

Endoplasmic reticulum stress leads to the selective transcriptional downregulation of the glucoamylase gene in Aspergillus niger

Al-Sheikh, H., Watson, A. J., Lacey, G. A., Punt, P. J., MacKenzie, D. A., Jeenes, D. J., Pakula, T., Penttilä, M., Alcocer, M. J. C. & Archer, D. B., 1 Sep 2004, In : Molecular Microbiology. 53, 6, p. 1731-1742 12 p.

Research output: Contribution to journalArticleScientificpeer-review

Glucan 1,4-alpha-Glucosidase
Unfolded Protein Response
Endoplasmic Reticulum Stress
Aspergillus niger
Down-Regulation