Sökning: "Rymd- och plasmafysik"
Visar resultat 1 - 5 av 83 avhandlingar innehållade orden Rymd- och plasmafysik.
1. Multi-spectral analysis of fine scale aurora
Sammanfattning : The Aurora Borealis is the visible manifestation of the complex plasma interaction between the solar wind and the Earth's magnetosphere and ionosphere. Ground based and in situ measurements demonstrate a prevalence of dynamic fine structure within auroral displays, with spatial scales down to tens of metres and time variations occurring on a fraction of a second. LÄS MER
2. Attitude and Trajectory Estimation for Small Suborbital Payloads
Sammanfattning : Sounding rockets and small suborbital payloads provide a means for research in situ of the atmosphere and ionosphere. The trajectory and the attitude of the payload are critical for the evaluation of the scientific measurements and experiments. LÄS MER
3. Experiments with and modelling of explosively driven mangetic flux compression generators
Sammanfattning : This thesis presents work performed on explosively driven magnetic flux compression generators. This kind of devices converts the chemically stored energy in a high explosive into electromagnetic energy in the form of a powerful current pulse. LÄS MER
4. Gigawatt pulsed power technologies and applications
Sammanfattning : .... LÄS MER
5. Design and Experiments with High Power Microwave Sources : The Virtual Cathode Oscillator
Sammanfattning : High-Power Microwaves (HPM) can be used to intentionally disturb or destroy electronic equipment at a distance by inducing high voltages and currents.This thesis presents results from simulations and experiments with a narrow band HPM source, the vircator. LÄS MER