Search for dissertations about: "Roland Pettersson"

Found 4 swedish dissertations containing the words Roland Pettersson.

2. 1. Estimation of an individual's true ability from multiple choice tests

   Author : Roland Pettersson; Uppsala universitet; []
   Keywords : SOCIAL SCIENCES; SAMHÄLLSVETENSKAP;

   Abstract : .... READ MORE

4. 2. Thermal cis-trans isomerization in the vapour phase of stilbene, azobenzene, N-benzylideneaniline and some of their derivatives : a flash photolysis study

   Author : Roland Pettersson; Uppsala universitet; []
   Keywords : NATURAL SCIENCES; NATURVETENSKAP;

   Abstract : .... READ MORE

5. 3. Finite Element Analysis of Case-Hardened Roller Bearings

   Author : Jan Pettersson; Roland Fortunier; Linköpings universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

   Abstract : This thesis deals with the material modelling of case-hardened bearing steel, with special reference to hardened roller bearing components. The result of a case-hardening process is a hardened component with substantially improved material properties within a restricted region beneath the heat-treated surface. READ MORE

6. 4. Surfaces Designed for High and Low Friction

   Author : Ulrika Pettersson; Staffan Jacobson; Roland Larsson; Uppsala universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Materials science; tribology; friction; surface texture; surface design; low friction; high friction; boundary lubrication; DLC; embossing; Materialvetenskap; Materials science; Teknisk materialvetenskap;

   Abstract : This thesis comprises tribological studies of extremely well-defined surfaces of different designs. Both low-friction and high-friction surfaces were manufactured and experimentally evaluated.In the low-friction studies, lithography and anisotropic etching of silicon was first used as a texturing technique. READ MORE