Valtion teknillinen tutkimuskeskus

Fabrication of microphotonic waveguide components on silicon / (2007)

Solehmainen, Kimmo., Valtion Teknillinen Tutkimuskeskus.

This thesis reports on the development of silicon-based microphotonic waveguide components, which are targeted in future optical telecommunication networks. The aim of the work was to develop the...

Active control of radial rotor vibrations : identification, feedback, feedforward, and repetitive control methods / (2007)

Tammi, Kari., Valtion Teknillinen Tutkimuskeskus.

Active vibration control methods for rotors were studied in order to develop solutions to enhance machine's dynamic behaviour, durability, and operating range. The aim of the thesis was to develop...

Damage mechanics model for brittle failure of transversely isotropic solids : finite element implentation / (2007)

Kolari, Kari., Valtion Teknillinen Tutkimuskeskus.

A new continuum damage model, the wing crack damage (WCD) model, was developed for the analysis of brittle failure of transversely isotropic solids. Special attention was paid to the analysis of...

Private finance of transport infrastructure projects : value and risk analysis of a Finnish shadow toll road project/ (2007)

Leviäkangas, Pekka., Valtion Teknillinen Tutkimuskeskus.

There is a growing interest to find ways and methods to finance capital investments in infrastructure by deploying private capital. Entering private capital into transport infrastructure planning,...

Assessing organizational culture in complex sociotechnical systems : methodological evidence from studies in nuclear power plant maintenance organizations / (2007)

Reiman, Teemu., Valtion Teknillinen Tutkimuskeskus.

Failures in industrial organizations dealing with hazardous technologies can have widespread consequences for the safety of the workers and the general population. Psychology can have a major role in...

Direct wafer bonding for MEMS and microelectronics / (2006)

Suni, Tommi., Valtion Teknillinen Tutkimuskeskus.

Direct wafer bonding is a method for fabricating advanced substrates for microelectromechanical systems (MEMS) and integrated circuits (IC). The most typical example of such an advanced substrate is...

Machinability effects of stainless steels with a HIPed NiTi coating in high-efficiency machining operations / (2006)

Paro, Jukka., Valtion Teknillinen Tutkimuskeskus.

Tiivistelmä: Isostaattisella kuumapuristusmenetelmällä NiTi-pinnoitetun ruostumattoman teräksen suurtehotyöstön lastuttavuusavaikutuksia.

Advanced CMP processes for special substrates and for device manufacturing in MEMS applications / (2006)

Kulawski, Martin., Valtion Teknillinen Tutkimuskeskus.

The present work reports on studies and process developments to utilize the chemical mechanical planarization (CMP) technology in the field of micro electrical mechanical systems (MEMS). Approaches...

Asiantuntijaorganisaatio muutoksessa / (2006)

Talja, Heli., Valtion Teknillinen Tutkimuskeskus.

Thesis (doctoral)--Tampereen teknillinen yliopisto, 2006.

Methods for machine vision based driver monitoring applications / (2006)

Kutila, Matti., Valtion Teknillinen Tutkimuskeskus.

Tiivistelmä: Menetelmiä konenäköpohjaisiin kuljettajan monitorointisovelluksiin.

Microelectromechanical resonator-based components for wireless communications : filters and transmission lines / (2006)

Alastalo, Ari., Valtion Teknillinen Tutkimuskeskus.

Starting in the early 1960's, when the integrated-circuit (IC) technology was developed, micromachining and microelectromechanical systems (MEMS) have grown into a broad research field with several...

MEMS tuning and matching circuits, and millimeter wave on-wafer measurements / (2006)

Vähä-Heikkilä, Tauno., Valtion Teknillinen Tutkimuskeskus.

Tiivistelmä: Mikromekaaniset viritys- ja sovituspiirit sekä millimetriaaltoalueen suoraan kiekolta tehtävät mittaukset.

Expert identity in development of core-task-oriented working practices for mastering demanding situations / (2006)

Nuutinen, Maaria., Valtion Teknillinen Tutkimuskeskus.

Tiivistelmä: Asiantuntijaidentiteetti perustehtäväsuuntautuneiden työtapojen kehittämisessä vaativien tilanteiden hallintaan.

Estimation of country contributions to the climate change : viewpoints of radiative forcing and uncertainty of emissions / (2005)

Monni, Suvi., Valtion Teknillinen Tutkimuskeskus.

Global warming that occurs due to emissions from a country or a country group was studied from two different points of view. Firstly, warming effect caused by Finnish emissions from 1900 to 2100 was...

Muovimattopinnoitteisen lattiarakenteen VOC-emissiot sisäilmaongelmatapauksissa / (2005)

Järnström, Helena., Valtion Teknillinen Tutkimuskeskus.

The research project investigated whether it is possible to identify an indoor air problem by using measurement techniques that are available today for measuring indoor pollutants, as well as the...

A tool for quality-driven architecture model transformation / (2005)

Merilinna, Janne., Valtion Teknillinen Tutkimuskeskus.

Tiivistelmä: Työkalu arkkitehtuurimallin laatuohjattuun transformaatioon.

Applying thermal hydraulics modeling in coupled processes of nuclear power plants / (2005)

Hämäläinen, A. (Anitta), Valtion Teknillinen Tutkimuskeskus.

This thesis focuses on the validation of the coupled codes developed in Finland for the safety analyses of the light water reactors in design basis accidents. The validation efforts and applications...

A companion model approach to modelling and simulation of industrial processes / (2005)

Juslin, Kaj., Valtion Teknillinen Tutkimuskeskus.

Modelling and simulation represent tremendous possibilities if extensively taken up by engineers as a working method (IMTI 2003). However, if detailed writing of equations and programming is required...

Indirect multisignal monitoring and diagnosis of drill wear / (2005)

Jantunen, Erkki., Valtion Teknillinen Tutkimuskeskus.

A machine tool utilisation rate can be improved by an advanced condition monitoring system using modern sensor and signal processing techniques. A drilling test and analysis program for indirect tool...

Diagnostic tools for HVOF process optimization / (2005)

Turunen, Erja., Valtion Teknillinen Tutkimuskeskus.

In the thermal spray process the coating is built up from lamellas formed by rapid solidification of the melted or semi-melted droplets attached to the substrate. A typical structure for the coating...

Security measurement based on attack trees in a mobile ad hoc network environment / (2005)

Karppinen, Kaarina., Valtion Teknillinen Tutkimuskeskus.

Practical evidence of the actual security performance of network systems is needed in order to be able to manage them in an adequate way. This study investigates whether the attack tree approach can...

[Alpha]-amylolysis of barley starch / (2001)

Lauro, Marianna., Valtion Teknillinen Tutkimuskeskus.

Thesis (doctoral)--Helsinki University of Technology, 2001.

Estimation of greenhouse impacts of continuous regional emissions / (1998)

Sinisalo, Jukka., Valtion Teknillinen Tutkimuskeskus.

In this thesis radiative forcing calculations are applied to non-global emissions to estimate the greenhouse impact of Finnish and Nordic greenhouse gas emissions.

Transient analysis for ground fault distance estimation in electrical distribution networks / (1992)

Valtion Teknillinen Tutkimuskeskus.

"Thesis for the degree of Doctor of Technology ... at Tampere University of Technology, Department of Electrical Engineering ... 1992 ..."