Sökning: "Kjell Wikander"
Hittade 3 avhandlingar innehållade orden Kjell Wikander.
1. Nanostructured catalysts and electrode materials for PEM fuel cells
Sammanfattning : .... LÄS MER
2. Nanostructured Catalysts and Electrode Materials for PEM Fuel Cells
Sammanfattning : The Polymer Electrolyte Membrane Fuel Cell (PEMFC) is a promising energy converting technology for powering automotives and electrical equipment using hydrogen gas as fuel and producing water as the only exhaust. The active carbon-supported platinum catalyst present in the electrodes limits the maximum power generation in state-of-the-art PEMFCs due to platinum’s poor activity for the oxygen reduction reaction (ORR) taking place at the cathode. LÄS MER
3. Design and optimization of parallel haptic devices : Design methodology and experimental evaluation
Sammanfattning : The simulation of surgical procedures, in the case of hard tissues such as bone or teeth milling, using a haptic milling surgery simulator requires a haptic device which can provide high stiffness and transparency. To mimic a real milling process of hard tissue, such as for example creating a narrow channel or cavity, the simulator needs to provide force/torque feedback in 5–6 degrees of freedom (DOF). LÄS MER