Sökning: "Dynamiska system"

Visar resultat 21 - 25 av 190 avhandlingar innehållade orden Dynamiska system.

  1. 21. System Identification with Multi-Step Least-Squares Methods

    Författare :Miguel Galrinho; Håkan Hjalmarsson; Manfred Deistler; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electrical Engineering; Elektro- och systemteknik;

    Sammanfattning : The purpose of system identification is to build mathematical models for dynam-ical systems from experimental data. With the current increase in complexity of engineering systems, an important challenge is to develop accurate and computa-tionally simple algorithms, which can be applied in a large variety of settings. LÄS MER

  3. 22. Dynamics of Smooth Hyperbolic Systems with Singularities

    Författare :Tomas Persson; Dynamiska system; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Matematik; Mathematics; Dimension Theory; Hyperbolic Dynamics; Subshift; SRB-measure;

    Sammanfattning : This thesis is about dynamics of piecewise hyperbolic maps on bounded sets in the plane and on the interval. It is based on the following papers: T. Persson, A piecewise hyperbolic map with absolutely continuous invariant measure, Dynamical Systems: An International Journal, 21:3 (2006), 363--378 T. LÄS MER

  4. 23. Critical recurrence in real quadratic and rational dynamics

    Författare :Mats Bylund; Dynamiska system; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : In this thesis we study the dynamics of real quadratic functions on the interval, and rational functions on the Riemann sphere. The problems we are considering are concerned with the recurrent nature of the critical orbit(s). LÄS MER

  5. 24. The Family of Belykh Maps

    Författare :Tomas Persson; Dynamiska system; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : void.... LÄS MER

  7. 25. Fundamental processes in thin film growth : The origin of compressive stress and the dynamics of the early growth stages

    Författare :Daniel Magnfält; Ulf Helmsersson; Eric Chason; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : The fundamental mechanisms behind the generation of compressive stresses in polycrystalline thin films, the effects of pulsed deposition fluxes on the dynamics of the early growth stages as well as the generation of energetic Ar+ ions in high power impulse magnetron sputtering (HiPIMS) discharges has been studied in this thesis.It was found that compressive film stresses in Mo films deposited using energetic vapor fluxes are correlated with high film densities while only a slight lattice expansion compared to relaxed Mo was found. LÄS MER