Sökning: "Fredrik Gunnarsson"
Visar resultat 11 - 15 av 20 avhandlingar innehållade orden Fredrik Gunnarsson.
11. Lean NOx reduction over silver-alumina from lab-scale to real conditions - Effects of reducing agent and catalyst composition
Sammanfattning : Lean NOx reduction over silver-alumina from lab-scale to real conditions Effects of reducing agent and catalyst compositionFREDRIK GUNNARSSONApplied surface chemistryDepartment of Chemical and Biological EngineeringChalmers University of TechnologyAbstractThe focus of this work is to increase the understanding of lean NOx reduction over silver-alumina catalysts using hydrocarbons as the reducing agent (HC-SCR), in particular by investigating the effect of silver loading, the role of platinum doping, and the effect of the type of reducing agent. In addition, the effects of aging and hydrothermal treatment on the catalytic activity and selectivity, and the influence of real engine exhausts were investigated, with special attention to the low-temperature activity. LÄS MER
12. The impact of structural factors in colon and rectal cancer surgery
Sammanfattning : The aim of this thesis was to investigate the importance and effect of some key-structural factors on outcome of colorectal cancer surgery.Considerable improvements in the treatment of colorectal cancer, i.e. radiotherapy, chemotherapy and operative technique, have taken place since the beginning of the 80s. LÄS MER
13. Estimation of Nonlinear Greybox Models for Marine Applications
Sammanfattning : As marine vessels are becoming increasingly autonomous, having accurate simulation models available is turning into an absolute necessity. This holds both for facilitation of development and for achieving satisfactory model-based control. LÄS MER
14. Identification of Nonlinear Marine Systems
Sammanfattning : As marine vessels are becoming increasingly automated, having accurate simulation models available is turning into an absolute necessity. This holds both for the facilitation of development and for achieving satisfactory model-based control. LÄS MER
15. Ancillary actor relations : The case of EU’s leading defence primes
Sammanfattning : This longitudinal research project in industrial marketing seeks to understand ancillary actors, specifically what they are, their characteristics, relations and impact on focal relations based on the empirical case of the cross-border relations of EU’s largest defence equipment producing firms (called “primes”). Ancillary actors are approached on four arenas: i) the political setting for EU defence equipment production, ii) the “primes” business relations, e. LÄS MER