Sökning: "Institutionen För Teknik Och Hållbar Utveckling Mittuniversitetet"

Visar resultat 21 - 23 av 23 avhandlingar innehållade orden Institutionen För Teknik Och Hållbar Utveckling Mittuniversitetet.

  1. 21. G-Convergence and Homogenization of some Monotone Operators

    Författare :Marianne Olsson; Anders Holmbom; Nils Svanstedt; Mårten Gulliksson; Jan Françu; Mittuniversitetet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; G-convergence; homogenization; two-scale convergence; MATHEMATICS; MATEMATIK;

    Sammanfattning : In this thesis we investigate some partial differential equations with respect to G-convergence and homogenization. We study a few monotone parabolic equations that contain periodic oscillations on several scales, and also some linear elliptic and parabolic problems where there are no periodicity assumptions. LÄS MER

  3. 22. Homogenization of Some Selected Elliptic and Parabolic Problems Employing Suitable Generalized Modes of Two-Scale Convergence

    Författare :Jens Persson; Anders Holmbom; Liselott Flodén; Marianne Lindberg; Mårten Gulliksson; Peter Wall; Mittuniversitetet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; H-convergence; G-convergence; homogenization; multiscale analysis; two-scale convergence; multiscale convergence; elliptic partial differential equations; parabolic partial differential equations; monotone operators; heterogeneous media; non-periodic media; Mathematical analysis; Analys;

    Sammanfattning : The present thesis is devoted to the homogenization of certain elliptic and parabolic partial differential equations by means of appropriate generalizations of the notion of two-scale convergence. Since homogenization is defined in terms of H-convergence, we desire to find the H-limits of sequences of periodic monotone parabolic operators with two spatial scales and an arbitrary number of temporal scales and the H-limits of sequences of two-dimensional possibly non-periodic linear elliptic operators by utilizing the theories for evolution-multiscale convergence and λ-scale convergence, respectively, which are generalizations of the classical two-scale convergence mode and custom-made to treat homogenization problems of the prescribed kinds. LÄS MER

  4. 23. Customer-focused product development : An outdoor industry perspective

    Författare :Petter Stenmark; Mittuniversitetet; []
    Nyckelord :Product development; innovation; quality; customer focus; outdoor industry;

    Sammanfattning : Being customer‐focused is often considered to be a key success factor inproduct‐ or service development. This kind of approach may comprise manythings in practice, such as formal or informal methods and activities that arecarried out to identify and meet, or preferably exceed, customer needs andexpectations. LÄS MER