Sökning: "Anders Forsgren"

Visar resultat 11 - 15 av 16 avhandlingar innehållade orden Anders Forsgren.

1. 11. Real Time Drag Minimization

   Författare :Marianne Jacobsen; Ulf Ringertz; Anders Forsgren; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Aeronautics; optimization; experimental verification; Vehicle engineering; Farkostteknik;

   Sammanfattning : This thesis focuses on the use of multiple redundant control surfaces to increase performance during flight. There is no clear-cut definition of performance. It may differ between applications, but here, the amount of drag for a given flight condition is used. LÄS MER

3. 12. Visuella vändningar : Bild och estetik i Kerstin Ekmans romankonst

   Författare :Cecilia Lindhé; Anna Williams; Peter Forsgren; Anders Ohlsson; Uppsala universitet; []
   Nyckelord :HUMANIORA; HUMANITIES; Literature; Kerstin Ekman; image; ekphrasis; intermediality; iconic; filmic and virtual projection; narratology; dialogicity; intertextuality; W. J. T. Mitchell; Mikhail Bakhtin; Eyvind Johnson; Rune Hagberg; Litteraturvetenskap; Literature; Litteraturvetenskap;

   Sammanfattning : This is a dissertation on how an aesthetics of fiction is formulated at the intersection of, and oscillation between, image-construction and image-criticism in three novels by Kerstin Ekman: En stad av ljus (1983), Händelser vid vatten (1993), and Gör mig levande igen (1996). The purpose of the dissertation is to analyze the movement of this oscillation and demonstrate how it is intertwined, not only with the aesthetic practice characterizing these novels, but also with their interpretation of the past and the contemporary. LÄS MER

4. 13. Feasible Direction Methods for Constrained Nonlinear Optimization : Suggestions for Improvements

   Författare :Maria Mitradjieva-Daneva; Maud Göthe-Lundgren; Torbjörn Larsson; Clas Rydergren; Anders Forsgren; Linköpings universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; constrained nonlinear optimization; feasible direction methods; conjugate directions; traffic equilibrium problem; sequential linear programming algorithm; stochastic transportation problem; Optimization; systems theory; Optimeringslära; systemteori;

   Sammanfattning : This thesis concerns the development of novel feasible direction type algorithms for constrained nonlinear optimization. The new algorithms are based upon enhancements of the search direction determination and the line search steps. LÄS MER

5. 14. Macroscopic Modeling of Metabolic Reaction Networks and Dynamic Identification of Elementary Flux Modes by Column Generation

   Författare :Hildur Æsa Oddsdóttir; Anders Forsgren; Bernhard Palsson; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Metabolic Network; Optimization; Robust Optimization; Least-squares; Column Generation; Modeling; Algorithm; Elementary Flux Mode; Metabolic Flux Analysis; Chinese Hamster Ovary Cell; Amino Acid Metabolism; Tillämpad matematik och beräkningsmatematik; Applied and Computational Mathematics;

   Sammanfattning : In this work an intersection between optimization methods and animal cell culture modeling is considered. We present optimization based methods for analyzing and building models of cell culture; models that could be used when designing the environment cells are cultivated in, i.e., medium. LÄS MER

7. 15. On Methods for Solving Symmetric Systems of Linear Equations Arising in Optimization

   Författare :Tove Odland; Anders Forsgren; William W. Hager; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; symmetric system of linear equations; method of conjugate gradients; quasi-Newton method; unconstrained optimization; unconstrained quadratic optimiza- tion; Krylov subspace method; unnormalized Lanczos vectors; minimum-residual method; symmetriska linjära ekvationssystem; konjugerade gradientmetoden; kvasi- Newtonmetoder; optimering utan bivillkor; kvadratisk optimering utan bivillkor; Kry- lovunderrumsmetoder; icke-normaliserade Lanczosvektorer; minimum-residualmetoden; Mathematics; Matematik;

   Sammanfattning : In this thesis we present research on mathematical properties of methods for solv- ing symmetric systems of linear equations that arise in various optimization problem formulations and in methods for solving such problems.In the first and third paper (Paper A and Paper C), we consider the connection be- tween the method of conjugate gradients and quasi-Newton methods on strictly convex quadratic optimization problems or equivalently on a symmetric system of linear equa- tions with a positive definite matrix. LÄS MER