Visar resultat 1 - 5 av 1736 avhandlingar innehållade ordet Charge.
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
Sammanfattning : In early postcolonial Burma, a number of so-called royal esoteric associations with a millenarian and eschatological orientation, and founded by persons believed to be the world emperor, emerged in response to political turmoil, nation-building projects, modernization, and after-effects of colonialism. These Theravāda Buddhist esoteric congregations, revivalist and innovative at the same time, were indicative of a general crisis of authority and identity. LÄS MER
Sammanfattning : Homogenization theory is the study of the asymptotic behaviour of solutionsto partial differential equations where high frequency oscillations occur.In the case of a perforated domain the oscillations are due to variations in thedomain of the equation. LÄS MER
4. Charge transport in polymer-based insulating materials for high voltage applications: effect of single- and multi-layered structures
Sammanfattning : Polymer composites have been widely employed as electrical insulating materials for high voltage components and devices such as power cables, gas-insulated systems, rotating machines, line and post insulators, etc. Such materials are usually made by introducing inorganic oxides (SiO2, TiO2, Al2O3, MgO) into polymeric matrices e.g. LÄS MER
Sammanfattning : This thesis deals with the novel idea of controlling the electric stress or field distribution in a hybrid air - solid-dielectric high voltage insulation by promoting accumulation of surface charges on the internal interfacial layers in the combined (hybrid) dielectric structure. Primarily, applications are expected to be found in high voltage dc systems and as a method to improve the resistance against insulation failure by overvoltages, e. LÄS MER