Sökning: "multipole expansion"

Hittade 4 avhandlingar innehållade orden multipole expansion.

  1. 1. Theoretical Description of Electronic Transitions in Large Molecular Systems in the Optical and X-Ray Regions

    Detta är en avhandling från Odense : University Library of Southern Denmark, Denmark

    Författare :Nanna Holmgaard List; [2015]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Polarizable embedding; multiscale modeling; localized electronic transitions; response theory; QM MM; damped linear response; non-dipolar effects; light-matter interactions; multipole expansion; embedding potentials; local field effects; fluorescent proteins; computational chemistry; MCSCF; Theoretical Chemistry and Biology; Teoretisk kemi och biologi;

    Sammanfattning : The size and conformational complexity of proteins and other large systems represent major challenges for today's methods of quantum chemistry.This thesis is centered around the development of new computational tools to gain molecular-level insight into electronic transitions in such systems. LÄS MER

  2. 2. Estimation of electromagnetic material properties with application to high-voltage power cables

    Detta är en avhandling från Linnaeus University Press

    Författare :Yevhen Ivanenko; Linnéuniversitetet.; [2017]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Material losses; power cables; cylindrical multipole expansion; Herglotz functions; convex optimization; sum rules; Waves and Signals; Vågor och signaler;

    Sammanfattning : Efficient design of high-voltage power cables is important to achieve an economical delivery of electric power from wind farms and power plants over the very long distances as well as the overseas electric power. The main focus of this thesis is the investigation of electromagnetic losses in components of high-voltage power cables. LÄS MER

  3. 3. On signal processing and electromagnetic modelling applications in antennas and transmission lines

    Detta är en avhandling från Ronneby : Blekinge Institute of Technology

    Författare :Jonas Lundbäck; Blekinge Tekniska Högskola.; [2007]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Vector sensors; Statistical signal processing; Antennas; Directional Coupler; Tranmission lines; Partial discharge;

    Sammanfattning : This doctoral thesis is comprised of five parts. The first three parts concern signal processing and electromagnetic modelling of multiport antennas. The last two parts concern signal processing and transmission line theory applied to wave splitting on transmission lines. LÄS MER

  4. 4. Relativistic light-matter interaction

    Detta är en avhandling från Stockholm : Department of Physics, Stockholm University

    Författare :Tor Kjellsson Lindblom; Stockholms universitet.; [2017]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Time-dependent Dirac equation; Beyond dipole effects; Relativistic effects; High-Intensity laser-matter interaction; Theoretical Physics; teoretisk fysik;

    Sammanfattning : During the past decades, the development of laser technology has produced pulses with increasingly higher peak intensities. These can now be made such that their strength rivals, and even exceeds, the atomic potential at the typical distance of an electron from the nucleus. LÄS MER