Sökning: "MAGNETIC-FIELD"
Visar resultat 1 - 5 av 487 avhandlingar innehållade ordet MAGNETIC-FIELD.
1. Transformation Optics for Controlling DC Magnetic Field
Sammanfattning : Based on the form-invariant of Maxwell’s equations under coordinate transformations, we extend the theoryof transformation optics to transformation magneto-statics, which can design magnets through coordinatetransformations. Some novel DC magnetic field illusions created by magnets (e.g. LÄS MER
2. Cryogenic InP High Electron Mobility Transistors in a Magnetic Field
Sammanfattning : The InGaAs-InAlAs-InP high electron mobility transistor (InP HEMT) is the preferred active device used in a cryogenic low noise amplifier (LNA) for sensitive detection of microwave signals. In this thesis it is demonstrated that the InP HEMT, when placed in a magnetic field, has a strong angular dependence in its output current. LÄS MER
3. Replicability of ELF magnetic field biological effects and outdoor urban field distribution
Sammanfattning : .... LÄS MER
4. Fibre Optic Magnetic Field Sensors Utilizing Iron Garnet Materials
Sammanfattning : This thesis deals with the subject of fibre optic magnetic field sensors utilizing iron garnet materials. Such materials exhibit a large Faraday rotation which make them advantageous for application in compact magnetic field sensors. LÄS MER
5. Excitons in a high magnetic field
Sammanfattning : The interaction of excitons with each other and with charged impurities has been studied in a high magnetic field when the distance between the Landau levels is greater than the Coulomb unit of energy, in the frame of the model suitable for description of Wannier excitons in semiconductors. The analytical expressions for the pair interaction potential between hydrogenlike excitons in a high magnetic field are derived for the triplet and singlet terms. LÄS MER