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Analysis of the voltage source inverter with small DC-link capacitor
(2005-11-25)
IIn electric drives, frequency converters are used to generatefor the electric motor the AC voltage with variable frequency and amplitude. When considering the annual sale of drives in values of money and units sold, the ...
Power quality improving with virtual flux-based voltage source line converter
(2005-03-05)
Line converters have become an attractive AC/DC power conversion solution in industrial applications. Line converters are based on controllable semiconductor switches, typically insulated gate bipolar transistors. Compared ...
Business Development Efforts and Performance Improvements in SMEs Case Study of Business Development Projects Implemented in SME
(2005)
Under the circumstances of the increasing market pressure, enterprises try to improve their competitive position by development efforts, and a business development project is one tool for that. There are not many answers ...
Ion-exchange resins as stationary phase in reactive chromatography
(2005)
Dynamic behavior of bothisothermal and non-isothermal single-column chromatographic reactors with an ion-exchange resin as the stationary phase was investigated. The reactor performance was interpreted by using results ...
Similarity measure based classification
(2005)
Luokittelujärjestelmää suunniteltaessa tarkoituksena on rakentaa systeemi, joka pystyy ratkaisemaan mahdollisimman tarkasti tutkittavan ongelma-alueen. Hahmontunnistuksessa tunnistusjärjestelmän ydin on luokitin. Luokittelun ...
Dynamic Capabilities and Firm Performance
(2005)
Firms operating in a changing environment have a need for structures and practices that provide flexibility and enable rapid response to changes. Given the challenges they face in attempts to keep up with market needs, ...
Information System ProcessInnovation Adoption, Adaptation, Learning, and Unlearning: A Longitudinal Case Study
(2005)
This thesis examines the history and evolution of information system process innovation (ISPI) processes (adoption, adaptation, and unlearning) within the information system development (ISD) work in an internal information ...
Studies on coordination of systems development process
(2005-08-12)
This thesis examines coordination of systems development process in a contemporary software producing organization. The thesis consists of a series of empirical studies in which the actions, conceptions and artifacts of ...
Supporting knowledge creation and sharing in the early phases of the strategic innovation process
(2005-08-19)
The driving forces of technology and globalization continuously transform the business landscape in a way which undermines the existing strategies and innovations of organizations. The challenge for organizations is to ...
Theoretical and numerical study of thermomagnetic convection in magnetic fluids
(2005-10-14)
In this thesis, the magnetic field control of convection instabilities and heat and mass transfer processesin magnetic fluids have been investigated by numerical simulations and theoretical considerations. Simulation models ...