Sökning: "Staffan Johansson"
Visar resultat 1 - 5 av 30 avhandlingar innehållade orden Staffan Johansson.
Sammanfattning : .... LÄS MER
Sammanfattning : Reducing emissions is a top priority within heavy duty diesel engine development and research. The aim of the work is to decrease the fuel consumption by decreasing frictional losses of the Power Cylinder Unit.Full scale testing of engine components improvements is time-consuming and costly. LÄS MER
3. Limonene Hydroperoxides in Allergic Contact Dermatitis. Radical Formation, Sensitizing Capacity and Immunogenic Complex Formation
Sammanfattning : Contact allergy to fragrance compounds is an increasing problem in the western countries today. R-Limonene is one of the most common fragrance compounds; it is used in hygiene products and cosmetics as well as in industrial products such as hand cleansers and degreasers. LÄS MER
Sammanfattning : Reducing emissions is a top priority within heavy duty diesel engine development and research. The power cylinder system is a main contributor to emissions and accounts for about 50% of the total frictional losses found in the engine, so is important to optimize. LÄS MER
5. Högstadieungdomar skriver historia på bloggen : undervisning, literacy och historiemedvetande i ett nytt medielandskap
Sammanfattning : The purpose of this thesis is to study the literacy formed when a class blog is used as a tool for students studying history and explore how this particular literacy is used to generate historical knowledge. The study was conducted during the course of a project in which ninth-grade students contributed entries to a common blog in the form of a diary written by individuals who experienced the Second World War. LÄS MER