Search for dissertations about: "PML"

Showing result 1 - 5 of 30 swedish dissertations containing the word PML.

2. 1. Direct and Inverse Methods for Waveguides and Scattering Problems in the Time Domain

   Author : Erik Abenius; Per Lötstedt; Mats Gustafsson; Uppsala universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Maxwell s equations; time-domain; FDTD; finite-element; hybrid; thin sheet; waveguide; PML; inverse scattering; adjoint; gradient-based; minimization; Beräkningsvetenskap med inriktning mot numerisk analys; Scientific Computing with specialization in Numerical Analysis;

   Abstract : Numerical simulation is an important tool in understanding the electromagnetic field and how it interacts with the environment. Different topics for time-domain finite-difference (FDTD) and finite-element (FETD) methods for Maxwell's equations are treated in this thesis. READ MORE

4. 2. Absorbing Layers and Non-Reflecting Boundary Conditions for Wave Propagation Problems

   Author : Daniel Appelö; Prof. Gunilla Kreiss; Eliane Becache; KTH; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; PML; perfectly matched layer; Numerical analysis; Numerisk analys;

   Abstract : The presence of wave motion is the defining feature in many fields of application,such as electro-magnetics, seismics, acoustics, aerodynamics,oceanography and optics. In these fields, accurate numerical simulation of wave phenomena is important for the enhanced understanding of basic phenomenon, but also in design and development of various engineering applications. READ MORE

5. 3. Nuclear compartmentalization of viral and cellular proteins involved in gamma-herpes virus (EBV and HHV-8) mediated cellular transformation

   Author : Karin Mattsson; Karolinska Institutet; Karolinska Institutet; []
   Keywords : EBV; HHV-8; latency; PML nuclear body; fluorescence microscopy;

   Abstract : The aim of the work described in this thesis has been to characterize the nuclear compartmentalization of cellular and viral proteins involved in EBV or HHV-8 mediated cellular transformation. We have studied the EBV encoded EBNA-5 and its association with the PML nuclear bodies (NBs) and nuclear inclusions. READ MORE

6. 4. Topographical study of intranuclear distribution and compartementalization of viral and cellular proteins

   Author : Wei-Qin Jiang; Karolinska Institutet; Karolinska Institutet; []
   Keywords : ;

   Abstract : The nuclei of eukaryotic cells contain a number of specialized domains involved in DNA replication, transcription, pre-mRNA splicing and ribosome assembly. In addition to these structures, nuclear bodies of unknown function have been described. READ MORE

7. 5. Perfectly Matched Layers and High Order Difference Methods for Wave Equations

   Author : Kenneth Duru; Gunilla Kreiss; Jan Nordsröm; Ken Mattsson; Marcus Grote; Uppsala universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Elastic waves; Surface waves; Perfectly matched layers; High order difference methods; Stability; Summation-by-parts operators; Boundary treatments; Beräkningsvetenskap med inriktning mot numerisk analys; Scientific Computing with specialization in Numerical Analysis;

   Abstract : The perfectly matched layer (PML) is a novel technique to simulate the absorption of waves in unbounded domains. The underlying equations are often a system of second order hyperbolic partial differential equations. In the numerical treatment, second order systems are often rewritten and solved as first order systems. READ MORE