Search for dissertations about: "Design of Induction"
Showing result 21 - 25 of 102 swedish dissertations containing the words Design of Induction.
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21. Design, Modelling and Control of Electrical Machines - With Applications to Iron-powder Machines and Acoustic Noise
Abstract : This thesis consists of two parts, the first dealing with the design of iron-powder synchronous machines, and the second with the analysis and prediction of the acoustic noise in electrical machines. In Part I, a 1.6 kW electrically magnetized claw-pole machine with magnetically conducting end-plates has been analyzed and a prototype tested. READ MORE
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22. Physico-chemical characteristics and quantitative structure-activity relationships of PCBs
Abstract : The polychlorinated biphenyls (PCBs) comprise a group of 209 congeners varying in the number of chlorine atoms and substitution patterns. These compounds tend to be biomagnified in foodwebs and have been shown to induce an array of effects in exposed organisms. READ MORE
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23. Economic aspects of infertility treatment
Abstract : Background: With the expansion of IVF into general clinical practise during the 1980's and 1990's, the interest to identify and compare costs of different infertility treatments increased and, in many countries there is an ongoing debate about whether or not in vitro fertilisation (IVF) and other assisted reproductive techniques (ART) should be covered by national health insurance schemes. Objective: The aim of the present study was to examine aspects of cost in relation to effectiveness and benefits of infertility treatment, with particular emphasis on in-vitro fertilisation. READ MORE
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24. Design and Evaluation of a Compact 15 kW PM Integral Motor
Abstract : This thesis deals with the integral motor of tomorrow, and particularly with a variable speed, sensorless permanent magnet synchronous motor with an integrated converter. The rated power is 15 kW at 1500 r/min. The outer dimensions are approximately the same as for the equivalent standard induction motor.Control strategies for pumps and fans, i. READ MORE
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25. Communication acoustics in classroom environments : on the use of assistive listening devices
Abstract : Assistive listening devices (ALDs) are used in classrooms to assist communication for students with hearing loss. An ALD, a system of external microphones, transmits sound directly to the students' hearing aids. The signal is coupled to the hearing aid using a radio frequency (FM) or an induction loop (IL) system. READ MORE