Sökning: "lifetime measurements"
Visar resultat 31 - 35 av 191 avhandlingar innehållade orden lifetime measurements.
31. Optimal Networking in Wirelessly Powered Sensor Networks
Sammanfattning : Wireless sensor networks (WSNs) are nowadays widely used for the long-term monitoring of small or large regions, such as lakes, forests, cities, and industrial areas. The performance of a WSN typically consists of two aspects: i) the monitoring performance, e.g. LÄS MER
32. Radiation Detection Techniques for the Enhancement of Nuclear Safety
Sammanfattning : The hazard originating from the use of nuclear materials in various areas of the society necessitates a number of experimental techniques for controlling and increasing the safety connected to radioactive substances.The following thesis is divided into two parts, representing different aspects to the detection of radiation effects. LÄS MER
33. Hole Transport Materials for Solid-State Mesoscopic Solar Cells
Sammanfattning : The solid-state mesoscopic solar cells (sMSCs) have been developed as a promising alternative technology to the conventional photovoltaics. However, the device performance suffers from the low hole-mobilities and the incomplete pore filling of the hole transport materials (HTMs) into the mesoporous electrodes. LÄS MER
34. On the Use of Rotational CARS on Polyatomics and in Time Domain
Sammanfattning : This thesis work concerns the further developments of dual-broadband rotational coherent anti-Stokes Raman spectroscopy (RCARS) through experimental and theoretical investigations. Rotational CARS is an established technique for gas-phase thermometry and concentration measurement with major applications in combustion diagnostics. LÄS MER
35. Design of High Linearity MMIC Power Amplifiers for Space Applications
Sammanfattning : The high linearity performance in satellite transmitters is receiving increasing attention due to the demands of higher data rates in satellite communication links. During the last decade, digital communication links in satellite system have been replacing the previous analog links increasing the channel efficiency by allocating multiple carriers in the transponder bandwidth. LÄS MER