Sökning: "Johansson 1998"
Visar resultat 21 - 25 av 54 avhandlingar innehållade orden Johansson 1998.
21. Nyheter mitt ibland oss. Kommunala nyheter, personlig erfarenhet och lokal opinionsbildning
Sammanfattning : .... LÄS MER
22. Multiple Andreev Reflection - a Microscopic Theory of ac Josephson Effect in Mesoscopic Junctions
Sammanfattning : The mechanism of multiple Andreev reflection (MAR) is a microscopic theory for electron transport in voltage biased superconducting junctions, i.e. the ac Josephson effect. In this thesis we propose a new approach for calculating the dc current from MAR. LÄS MER
23. Synthesis and Realization of High-Speed Recursive Digital Filters
Sammanfattning : Recursive digital filters restrict the sample frequency at which an implementation of the filters can operate. This bound is determined by the ratio between the number of delay elements and the operation latency in the recursive loops of the filters. LÄS MER
24. A "happy" approach to speechreading : the effects of facial expression, emotional content, and script information on speechreading performance
Sammanfattning : The aim of the present thesis was to study if and how emotions in facial expressions affect speechreading performance. Speechreading is the understanding of spoken messages by watching the speaker's lips, taking facial expressions and situational cues into account. LÄS MER
25. Mechanical Pulp. Effects of Pretreatment and Wood Source on Fiber Separation and Pulp Properties
Sammanfattning : The work presented in this thesis concerns the mechanical pulping process and the effects of wood source and pretreatment conditions on the pulp properties. In the first part, the deformation of Norway spruce (Picea abies) wood samples was investigated under shear and torsional loading at different temperatures (20-95°C) and sulfonation conditions. LÄS MER