Sökning: "Dielectric Functions"
Visar resultat 16 - 20 av 29 avhandlingar innehållade orden Dielectric Functions.
16. Materials Design from ab initio Calculations
Sammanfattning : This thesis presents a theoretical study of bulk materials using ab initio methods based on the density functional theory (DFT).Crystallographic structural phase transformations and phase stability for 5f-dioxides, ABO3 perovskites, and ABO4 compounds have been extensively studied. LÄS MER
17. Interactions and dynamics of small molecules in liquid mixtures : as studied by nuclear spin relaxation and computer simulations
Sammanfattning : The present thesis concerns the interactions and dynamics of various types of smallmolecules in their liquid mixtures. The relationship between nuclear magneticrelaxation experiments, Molecular Dynamics simulations and dynamic models isexplored. LÄS MER
18. Efficient Adaptive Algorithms for an Electromagnetic Coefficient Inverse Problem
Sammanfattning : This thesis comprises five scientific papers, all of which are focusing on the inverse problem of reconstructing a dielectric permittivity which may vary in space inside a given domain. The data for the reconstruction consist of time-domain observations of the electric field, resulting from a single incident wave, on a part of the boundary of the domain under consideration. LÄS MER
19. Perturbation approach to reconstructions of boundary deformations in waveguide structures
Sammanfattning : In this thesis we develop inverse scattering algorithms towards the ultimate goal of online diagnostic methods. The aim is to detect structural changes inside power transformers and other major power grid components, like generators, shunt reactors etc. LÄS MER
20. Theoretical Investigations of the Role of Ion-Ion Correlations and Ion-Specific Interactions in Electric Double Layers
Sammanfattning : Electric double layers are ubiquitous, arising in some form in almost every situation involving an interface with an aqueous electrolyte solution. In order to gain insight into the behavior of electrolytes and electric double layers, simple models of bulk and inhomogeneous electrolyte solutions are considered in this thesis. LÄS MER