Search for dissertations about: "Kenneth Holmberg"
Found 5 swedish dissertations containing the words Kenneth Holmberg.
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1. Generalised linear models with clustered data
Abstract : In situations where a large data set is partitioned into many relativelysmall clusters, and where the members within a cluster have some common unmeasured characteristics, the number of parameters requiring estimation tends to increase with sample size if a fixed effects model is applied. This fact causes the assumptions underlying asymptotic results to be violated. READ MORE
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2. Significant history and historical orientation : Ugandan students narrate their historical pasts
Abstract : In 2012, Uganda celebrated 50 years of independence. The postcolonial era in the country has been marked by political turmoil and civil wars. Uganda, like many other postcolonial states in Africa, cannot be described as an ethnically or culturally homogenous state. READ MORE
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3. Nanocomposites for Use in Sliding Electrical Contacts
Abstract : In this thesis nanocomposite materials for use in high performance electrical contacts are tested. Self mating silver as coatings on cupper substrates are the most used material combination in power connectors today. In this work two new concepts were tested. READ MORE
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4. Silicon nitride for total hip replacements
Abstract : For more than 50 years total hip replacements have been a common and successful procedure to increase patient mobility and quality of life. The 10-year implant survival rate is 97.8%. READ MORE
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5. Wear of piston rings in hydrostatic transmissions
Abstract : This study focuses on the wear of piston rings in a hydraulic radial piston motor. The piston ring has to satisfy increasing demands for reliability and longer service life. It has two contacting surfaces, the face and the flank, and operates under a boundary lubrication state. READ MORE