Sökning: "Wei Liu"
Visar resultat 1 - 5 av 25 avhandlingar innehållade orden Wei Liu.
1. Electro-thermal investigations of4H-SiC RF power MESFETs and4H-SiC power BJTs
Sammanfattning : .... LÄS MER
2. Retinoids and vitamin D in skin and parathyroid glands
Sammanfattning : Vitamin D3 (VitD3) and retinoids are important factors involved in differentiation and proliferation in many cell systems. Their effects in skin, where retinoids and vitamin D are known to be crucially involved in keratinocyte differentiation and function,, and in the parathyroid, the overall regulatory organ in calcium homeostasis were studied. LÄS MER
3. Electro-thermal simulations and measurements of silicon carbide power transistors
Sammanfattning : The temperature dependent electrical characteristics of silicon carbide power transistors – 4H-SiC metal semiconductor field-effect transistors (MESFETs) and 4H-SiC bipolar junction transistors (BJTs) have been investigated through simulation and experimental approaches. Junction temperatures and temperature distributions in devices under large power densities have been estimated. LÄS MER
4. Development of microstructure in cast magnesium alloys
Sammanfattning : .... LÄS MER
5. Core Acquisition Management in Remanufacturing : Current Status and Modeling Techniques
Sammanfattning : Remanufacturing is an important product recovery option that benefits our sustainable development. Cores, i.e. the used products/parts, are essential resources for remanufacturing. LÄS MER