Sökning: "electrical engineering elektroteknik elektronik electronics elektronik och elektroteknik electronics"
Visar resultat 6 - 10 av 592 avhandlingar innehållade orden electrical engineering elektroteknik elektronik electronics elektronik och elektroteknik electronics.
6. Reconfigurable Analog to Digital Converters for Low Power Wireless Applications
Sammanfattning : The commercialization of Marconi’s radio transmission and reception, along with the development of integrated circuits in the 1960’s have facilitated many new consumer products for wireless communication, where the mobile phones or handsets are one. These handsets started out as a portable phone, mounted in cars, and have with time added additional services as Short Message Service, and have today become a media center with global positioning, and high-speed internet connection. LÄS MER
7. On Transfer Functions for Power Quality Studies in Wind Power and Solar PV Plants
Sammanfattning : As part of the decarbonisation of the energy system, wind and solar power are expected to play an important role. However, together with their growth, new challenges appear in the electric power system; this requires further research, development, and often studies before connection is possible. LÄS MER
8. Power Control Systems in a Flywheel based All-Electric Driveline
Sammanfattning : Flywheel systems are attractive in hybrid and electric vehicles due to their ability to handle power during acceleration and braking. The combination of a flywheel device with a battery source has several advantages such as high peak power capacity, high energy density and reduction in the number of charge/discharge cycles of the battery. LÄS MER
9. High resolution electrical characterization of III-V materials and devices
Sammanfattning : The continuing shrinkage of semiconductor devices towards nanoscale features and increased functionality has prompted a strong need for high-resolution characterization tools capable of mapping the electrical properties with nanoscale lateral resolution. In this regard, scanning capacitance microscopy (SCM) scanning spreading resistance microscopy (SSRM) and Kelvin probe force microscopy (KPFM) have emerged as powerful techniques. LÄS MER
10. Distributed Optimization of P2P Media Delivery Overlays
Sammanfattning : Media streaming over the Internet is becoming increasingly popular. Currently, most media is delivered using global content-delivery networks, providing a scalable and robust client-server model. However, content delivery infrastructures are expensive. LÄS MER