Sökning: "reflection coefficient"
Visar resultat 6 - 10 av 33 avhandlingar innehållade orden reflection coefficient.
6. Studies of flow duct acoustics with applications to turbocharged engines
Sammanfattning : A number of experimental and theoretical studies, performed in the field of technical flow duct acoustics are presented in this thesis. The acoustical methods treated are implemented on turbocharged IC-engines and engine gas exchange system components. A new method based on the well-known two-load technique has been developed. LÄS MER
7. Time-lapse Analysis of Borehole and Surface Seismic Data, and Reservoir Characterization of the Ketzin CO2 Storage Site, Germany
Sammanfattning : The CO2SINK (and CO2MAN) project is the first onshore CO2 storage project in Europe. The research site is located near the town of Ketzin, close to Potsdam in Germany. Injection started in June 2008, with a planned injection target of 100,000 tonnes of CO2. LÄS MER
8. Studies of sound generation and propagation in flow ducts
Sammanfattning : This thesis contains three papers investigating problems of interest for noise control in ducts. The first part of this thesis treats the sound propagation in rectangular ducts with flexible walls. Various experimental techniques are performed to measure the internal sound propagation and radiation to the surrounding. LÄS MER
9. Theoretical Studies of Electron Transport in Quantum Dot Structures
Sammanfattning : We calculate the phase property of the reflection coefficient in two-terminal structures using a lattice tight-binding model. It is seen that, provided that there exist two coherent reflection paths, the reflection probability can be zero for certain electron energies. LÄS MER
10. Design and Optimization of Wideband Hat-Fed Reflector Antenna with Radome for Satellite Earth Station
Sammanfattning : This thesis presents the development of a hat-fed refector antenna with radome to be used as satellite earth station. The antenna with self supported feed is relatively compact, circular symmetric and with low cross polarization. To achieve optimum performance over the satellite Ku-band,covering 10.75-14. LÄS MER