Sökning: "pär pettersson"
Visar resultat 1 - 5 av 8 avhandlingar innehållade orden pär pettersson.
1. Countercurrent operation in the dilute-acid hydrolysis of cellulose for ethanol production
Sammanfattning : Fuel ethanol can be produced from lignocellulosic materials to replace gasoline and diesel. A crucial step in the production process is the hydrolysis (saccharification) of the material, which can be achieved with dilute acid at high temperature. Unfortunately, sugar is degraded under these severe conditions, and the sugar yield is generally low. LÄS MER
2. Förändringsstress vid teknisk och organisatorisk omvandling : en studie av arbetsledare inom verkstadsindustrin
Sammanfattning : .... LÄS MER
3. On Numerical Descriptions of Road Transport Missions
Sammanfattning : This thesis addresses some issues of current interest in energy consumption prediction through simulation. First, we review the situation for rating, regulation and legislation of CO$_2$-emissions for cars and heavy vehicles. LÄS MER
4. Operating cycle representations for road vehicles
Sammanfattning : This thesis discusses different ways to represent road transport operations mathematically. The intention is to make more realistic predictions of longitudinal performance measures for road vehicles, such as the CO2 emissions. LÄS MER
5. Alpha-class glutathione transferases as steroid isomerases and scaffolds for protein redesign
Sammanfattning : The present work focuses on the glutathione transferase (GST) Alpha-class enzymes, their characteristics as steroid isomerases and structural plasticity as malleable scaffolds for protein design. The GSTs are a family of detoxication enzymes that appears to have a wider variety of additional functions. LÄS MER