Sökning: "surface science"
Visar resultat 16 - 20 av 1749 avhandlingar innehållade orden surface science.
16. Surface Characterization of Soft Magnetic Composite Powder and Compacts
Sammanfattning : .... LÄS MER
17. The effect of surface steps and oxides on the catalytic activity on model Pd and Rh catalysts
Sammanfattning : A catalyst is a substance that can speed up the rate of a chemical reaction without itself being consumed. Catalysts are crucial for chemical production industries, where about 90% of all chemicals are produced using catalysts. LÄS MER
18. Nanocomposites for Use in Sliding Electrical Contacts
Sammanfattning : 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. LÄS MER
19. Sheet metal trimming dies – characterisation methods of geometry and surface topography and the influence on wear
Sammanfattning : In recent years, the life cycle of car models has decreased from 7 to 5 years and the volume sizes are becoming shorter in the automotive industry. The increasing number of car models introduced to the market means that a fewer number of parts must pay the costs for the tool/die design and manufacturing. LÄS MER
20. The three-dimensional normal-distributions transform : an efficient representation for registration, surface analysis, and loop detection
Sammanfattning : This dissertation is concerned with three-dimensional (3D) sensing and 3D scan representation. Three-dimensional records are important tools in several disciplines; such as medical imaging, archaeology, and mobile robotics. LÄS MER