Search for dissertations about: "magnetic phenomena"
Showing result 16 - 20 of 154 swedish dissertations containing the words magnetic phenomena.
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16. Moisture content profiles and surface phenomena during drying of wood
Abstract : Timber drying is one of the most important processes whenmanufacturing sawn timber products. The drying processinfluences deformations, surface checking, discoloration andhence, the product quality and the manufacturing costs. READ MORE
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17. Theoretical and experimental studies of surface and interfacial phenomena involving steel surfaces
Abstract : The present work was initiated to investigate the surface- and interfacial phenomena for iron and slag/iron systems. The aim was to understand the mechanism of the effect of surface active elements on surface and interfacial properties. READ MORE
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18. Effect of Dielectric and Magnetic Material Characteristics on Frequency Response of Power Transformers
Abstract : Frequency response analysis (FRA) technique has become increasingly popular for the assessment of mechanicalintegrity in power transformers. This method is based on the fact that the shape of the frequency response at higher frequencies is uniquely determined by the geometrical construction of the transformer. READ MORE
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19. Collective behavior of disordered magnetic systems
Abstract : Magnetic properties of disordered and frustrated magnets have been experimentally investigated. The magnetic systems in focus in this work are spin-glasses and frozen ferrofluids (suspensions of nano-sized magnetic particles). READ MORE
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20. Measurement and modelling of unbalanced magnetic pull in hydropower generators
Abstract : Hydropower research is often perceived to be an old and exhausted field of study but with ageing equipment and the need for more intermittent operation caused by an increased share of other renewable energy sources new challenges lie ahead.The main focus of this dissertation are the electromagnetic forces resulting from nonuniform air gap flux, whether it be caused by rotor eccentricity or a faulty field winding. READ MORE