Sökning: "direction fields"
Visar resultat 11 - 15 av 145 avhandlingar innehållade orden direction fields.
11. Theory and Applications of Tri-Axial Electromagnetic Field Measurements
Sammanfattning : Polarisation, which was first studied in optics, is a fundamental property of all electromagnetic fields. A convenient way to describe the polarisation of two dimensional electromagnetic fields is given by the Stokes parameters. This thesis deals with different aspects of wave polarisation and electromagnetic field measurements. LÄS MER
12. From irrotational flows to turbulent dynamos
Sammanfattning : Many of the celestial bodies we know are found to be magnetized:the Earth, many of the planets so far discovered, the Sun and other stars,the interstellar space, the Milky Way and other galaxies.The reason for that is still to be fully understood, and this work is meant to be a step in that direction. LÄS MER
13. Un miroir aux alouettes ? : Stratégies pour la traduction des métaphores
Sammanfattning : This dissertation has three goals : to establish an inventory of translation strategies applicable to the translation of metaphor, to investigate how the application of these strategies affects the balance in metaphorical quality between source text and target text, and, finally, to determine whether this balance is a useful indicator of the direction of the translation as a whole, towards either adequacy or acceptability.To carry out this research the author has established a corpus comprising 250 metaphors from the novel La goutte d’or by Michel Tournier and its Swedish translation, Gulddroppen by C. LÄS MER
14. Retrieval of ocean surface winds and currents using satellite synthetic aperture radar and infrared radiometry
Sammanfattning : This thesis focuses on the development, analysis and evaluation of methods for the retrieval of ocean surface winds with synthetic aperture radar (SAR) and surface currents with infrared (IR) radiometer sensors. The SAR wind speed retrievals are based on geophysical model functions using wind directions obtained with two approaches. LÄS MER
15. Multipactor in low pressure gas and in nonuniform rf field structures
Sammanfattning : Resonant electron multiplication in vacuum, multipactor, is analysed for several geometries where the RF electric field is nonuniform. In particular, it is shown that the multipactor behaviour in a coaxial line is both qualitatively and quantitatively different from that observed with the conventionally used simple parallel-plate model. LÄS MER