Search for dissertations about: "hydrogen cell"
Showing result 1 - 5 of 281 swedish dissertations containing the words hydrogen cell.
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1. On direct hydrogen fuel cell vehicles : modelling and demonstration
Abstract : In this thesis, direct hydrogen Proton Exchange Membrane (PEM) fuel cell systems in vehicles are investigated through modelling, field tests and public acceptance surveys. A computer model of a 50 kW PEM fuel cell system was developed. The fuel cell system efficiency is approximately 50% between 10 and 45% of the rated power. READ MORE
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2. Macrophage-material surface interactions
Abstract : Material surface-stimulated activation of the macrophage and the release of mediators has been suggested to be an important factor for inflammation and tissue regeneration around biomedical implants. Macrophage interactions with particles released from implants as well as macophage-bacteria interactions are also involved in implant loosening processes. READ MORE
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3. Glucose- and hypoxia-regulated insulin gene expression
Abstract : Although extensively studied, there are still many unanswered questions regarding the exact regulation of insulin gene expression. This is important to further investigate since it will hopefully help us understand the pathophysiology of some types of diabetes. READ MORE
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4. Risk analysis of hydrogen as a vehicular fuel
Abstract : .... READ MORE
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5. Small-Scale Production of Fuel-Cell Hydrogen
Abstract : The work presented here aims at producing hydrogen for proton-exchange fuel-cell applications from hydrocarbons. This thesis describes an integrated catalytic converter comprising a steam-reforming reactor (heat of reaction supplied by catalytic combustion), a water-gas shift reactor and a preferential oxidation of carbon monoxide reactor, and the work performed on the fuel processing catalysts therein. READ MORE