Search for dissertations about: "Contact resistance"
Showing result 21 - 25 of 277 swedish dissertations containing the words Contact resistance.
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21. Where our feet have taken us : Examples of human contact, migration, and adaptation as revealed by ancient DNA
Abstract : In spite of our extensive knowledge of the human past, certain key questions remain to be answered about human prehistory. One involves the nature of cultural change in material culture through time from the perspective of how different ancient human groups interacted with one another. READ MORE
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22. The simulation of car and truck tyre vibrations, rolling resistance and rolling noise
Abstract : The road transportation sector places a severe burden on the environment in the form of CO2 emissions and road traffic noise. Both of these environmental prob- lems can be related to car and truck tyres. READ MORE
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23. Tyre/road interaction : A holistic approach to the functional requirements of road surfaces regarding noise and rolling resistance
Abstract : Increased fuel consumption, increased greenhouse gas emission, diminishing real-estate prices and increased health issues are some of the negative effects on the climate, on the environment and on the society from tyre/road rolling resistance and noise. The first two aspects are affected by energy dissipation in the tyre/pavement contact and are related to rolling resistance. READ MORE
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24. Tribology of Metal-Graphite Composites : A Study of Sliding Electrical Contact Surfaces
Abstract : An environmentally sustainable production of electrical power is important for preserving the earth’s natural resources. In order to utilize this power as efficiently as possible, it is of great importance to minimize the losses, for example in sliding electrical contacts. READ MORE
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25. Biomechanical analyses of flywheel resistance exercise : From a space- and ground-based perspective
Abstract : Astronauts suffer degradation of postural muscles and weight-bearing bones during long-duration spaceflight. Resistance exercise is used as a primary countermeasure against these degradations. READ MORE