Sökning: "pin"
Visar resultat 21 - 25 av 184 avhandlingar innehållade ordet pin.
21. Ultrahigh-Voltage Silicon Carbide Device Performance, Requirements, and Limitations in High-Power Applications
Sammanfattning : The increased awareness of the on-going climate change accelerates the electric energy system transformation from fossil-fueled power sources towards systems with larger portions of renewable energy sources. Moreover, the grid infrastructure requires reinforcements to cope with increasing electrical energy demand. LÄS MER
22. Galling of high strength steels and stainless steels in sheet metal forming as evaluated using pin-on-disc testing
Sammanfattning : The thesis focuses on the problem galling in sheet metal forming operations. Galling occurs when sheet metal transfers from the sheet surface onto the tool surface and causes surface damages to following sheets in the forming operation. When this happens the tool must be replaced causing production stops and additional expenses. LÄS MER
23. Experimental validation of a fault-tolerant system using physical fault injection
Sammanfattning : .... LÄS MER
24. Slotless High-Performance Electric Drives : Harmonic Loss Analysis, Sensorless Control, and Inverter Design
Sammanfattning : Electric motor drives are a cornerstone for many fundamental functions in today’s society, and their expected dominance within the transport sector is considered one of the main keys to abate global warming. Subsequently, the incentives for improved performance of electric motor drives cannot be sufficiently emphasized. LÄS MER
25. The normal and ACL deficient knee : an in vivo three dimensional kinematic and electromyographic analysis
Sammanfattning : The overall aim of this thesis was to describe the in-vivo 3D kinematics of the normal and ACL deficient knee. Baseline data from normal controls were compared against the pathological knee to assess whether generic functional knee braces reduced abnormal displacements. Moreover, 3D bony contact movements were derived from MRI data. LÄS MER