Sökning: "periodic"

Visar resultat 16 - 20 av 599 avhandlingar innehållade ordet periodic.

  1. 16. Signal Processing as a Tool to Enhance Productivity in Industry : Measurement and Cancelation of Periodic Signals

    Författare :Sven Olsson; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Order analysis; Multi-plane shaft balancing; Time-window modification; Active vibration control; Adaptive vibration control;

    Sammanfattning : Preface This licentiate thesis summarizes my work within the field of Signal Processing during my time in Signal Control Sweden AB from 1987 to 2002. The work has been performed in close co-operation the customers like Volvo Personvagnar AB, Sveriges Provnings- och forskningsinstitut and others. LÄS MER

  3. 17. Ultracold rubidium atoms in periodic potentials

    Författare :Robert Saers; Anders Kastberg; Svante Jonsell; Jan W. Thomsen; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Bose-Einstein condensation; optical lattice; quantum phase transition; experiment; theory; Condensed matter physics; Kondenserade materiens fysik;

    Sammanfattning : This thesis includes both experimental and theoretical investigations, presented in a series of eight papers. The experimental part ranges from the construction procedures of an apparatus for Bose-Einstein condensates, to full scale experiments using three different set-ups for ultracold atoms in optical lattices. LÄS MER

  4. 18. Scattering and propagation of electromagnetic waves in planar and curved periodic structures - applications to plane wave filters, plane wave absorbers and impedance surfaces

    Författare :Ola Forslund; KTH; []
    Nyckelord :electromagnetic scattering; periodic structure; frequency selectiove structure; frequency selective surface;

    Sammanfattning : The subject of this thesis is scattering of electromagneticwaves from planar and curved periodic structures. The problemspresented are solved in the frequency domain.Scattering from planar structures with two-dimensionalperiodic dependence of constitutive parameters is treated. LÄS MER

  5. 19. Dynamical Properties of Quasi-periodic Schrödinger Equations

    Författare :Kristian Bjerklöv; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Schrödinger equations; Schrödinger operators; positive Lyapunov exponents; invariant measures; minimality; measure of spectrum; MATHEMATICS; MATEMATIK;

    Sammanfattning : .... LÄS MER

  7. 20. Computer Assisted Methods for Quasi-periodic Attractors

    Författare :Victor Linroth; Jordi-Lluis Figueras; Capiǹski Maciej; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : .... LÄS MER