Search for dissertations about: "adjoint equations"

Showing result 1 - 5 of 36 swedish dissertations containing the words adjoint equations.

  1. 1. Reconciling gene family evolution and species evolution

    University dissertation from Stockholm : Numerical Analysis and Computer Science (NADA), Stockholm University

    Author : Joel Sjöstrand; Jens Lagergren; Nicolas Lartillot; [2013]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Computational biology; Bioinformatics; Phylogenetics; Phylogenomics; Comparative genomics; Evolutionary biology; datalogi; Computer Science;

    Abstract : Species evolution can often be adequately described with a phylogenetic tree. Interestingly, this is the case also for the evolution of homologous genes; a gene in an ancestral species may – through gene duplication, gene loss, lateral gene transfer (LGT), and speciation events – give rise to a gene family distributed across contemporaneous species. READ MORE

  2. 2. Optimal Control of Boundary Layer Transition

    University dissertation from Stockholm : Mekanik

    Author : Markus Högberg; [2001]
    Keywords : laminar-turbulent transition; transition control; turbulence control; flow control; boundary layer flow; channel flow; optimal control; adjoint equations; Riccati equations; Orr--Sommerfeld--Squire equations; secondary instability; transient gro;

    Abstract : .... READ MORE

  3. 3. Adjoint based control and optimization of aerodynamic flows

    University dissertation from Stockholm : Mekanik

    Author : Mattias Chevalier; [2002]
    Keywords : transition control; flow control; nonlinear optimal control; boundary layer flow; Falkner-Skan-Cooke flow; quasi-1D flow; shape optimization; adjoint equations; DNS;

    Abstract : .... READ MORE

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

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Erik Abenius; Per Lötstedt; Mats Gustafsson; [2005]
    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

  5. 5. Data Assimilation in Fluid Dynamics using Adjoint Optimization

    University dissertation from Matematiska institutionen

    Author : Johan Lundvall; Vladimir Kozlov; Per Weinerfelt; Matts Karlsson; Anders Szepessy; [2007]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Data assimilation; Inverse problem; Adjoint optimization; Burgers equation; nonlinear; Landweber; Initial pressure; Euler flow; MATHEMATICS Applied mathematics; MATEMATIK Tillämpad matematik;

    Abstract : Data assimilation arises in a vast array of different topics: traditionally in meteorological and oceanographic modelling, wind tunnel or water tunnel experiments and recently from biomedical engineering. Data assimilation is a process for combine measured or observed data with a mathematical model, to obtain estimates of the expected data. READ MORE