Sökning: "tomas halleröd"

Hittade 3 avhandlingar innehållade orden tomas halleröd.

1. 1. Electromagnetic optimization and scattering using a hybrid method in time domain

   Författare :Tomas Halleröd; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

   Sammanfattning : .... LÄS MER

3. 2. Optimization for scattering and radiation problems based on a stable FEM-FDTD hybrid method

   Författare :Tomas Halleröd; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; finite-difference time-domain; finite element method; array antennas; electric and magnetic losses; pattern synthesis; shape and material optimization; explicit-implicit time-stepping; scattering;

   Sammanfattning : In this thesis, a stable hybrid method combining the finite-elementmethod (FEM) and the finite-difference time-domain (FDTD) scheme forMaxwell's equations in two dimensions with both electric and magneticlosses is presented. It combines the flexibility of the FEM with theefficiency of the FDTD scheme. LÄS MER

4. 3. Phantom of the Neighbourhood : Longitudinal Studies on Area-based Conditions and Individual Outcomes

   Författare :Lars Brännström; Sten-Åke Stenberg; Tomas Korpi; Björn Halleröd; Stockholms universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Neighbourhood effects; Contextual effects; Residential segregation; Sweden; Sociology; Sociologi;

   Sammanfattning : This dissertation consists of three self-contained but interrelated empirical studies focusing on theoretical, empirical and political questions in the multidisciplinary field of neighbourhood effect research. Along with a comprehensive introductory essay, each study addresses questions concerning the potential influence of neighbourhood characteristics on individual social and economic outcomes at different life stages. LÄS MER