Sökning: "MUST"

Visar resultat 26 - 30 av 4810 avhandlingar innehållade ordet MUST.

  1. 26. The metal-to-nonmetal transition

    Författare :C. G. Greger Lindell; Linköpings universitet; []
    Nyckelord :;

    Sammanfattning : What distinguishes a metal from an insulator? The macroscopic differences are apparent: we immediately note the distinction between the shiny metal which conducts electricity and the colored, sometimes transparent appearance of the insulator. But which are the microscopic criteria that tell us to which of these two macroscopic classes a certain material should belong? An answer to this question must involve an understanding, at least qualitatively of the nature of the electronic system in question. LÄS MER

  3. 27. On avoiding and completing colorings

    Författare :Lan Anh Pham; Klas Markström; Carl Johan Casselgren; Victor Falgas-Ravry; Roland Häggkvist; Kimmo Eriksson; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Graph coloring; precoloring; list assignment;

    Sammanfattning : All of my papers are related to the problem of avoiding and completing an edge precoloring of a graph. In more detail, given a graph G and a partial proper edge precoloring φ of G and a list assignment L for every non-colored edge of G, can we extend φ to a proper edge coloring of G which avoids L? In Paper I, G is the d-dimensional hypercube graph Qd, a partial proper edge precoloring φ and a list assignment L must satisfy certain sparsity conditions. LÄS MER

  4. 28. Experimental Design and Updating of Finite Element Models

    Författare :Magnus Andersson; Lennart Ljung; Linköpings universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : This thesis deals with two partly related topics: model updating and actuator/sensor placement concerning finite element (FE) models of large, flexible mechanical structures.The importance of accurate dynamical FE models of mechanical structures in, e.g., aviation/aerospace applications are steadily increasing. LÄS MER

  5. 29. Performance characterization and evaluation of parallel PDE solvers

    Författare :Henrik Johansson; Jarmo Rantakokko; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Beräkningsvetenskap; Scientific Computing;

    Sammanfattning : Computer simulations that solve partial differential equations (PDEs) are common in many fields of science and engineering. To decrease the execution time of the simulations, the PDEs can be solved on parallel computers. For efficient parallel implementations, the characteristics of both the hardware and the PDE solver must be taken into account. LÄS MER

  7. 30. Adaptability or Efficiency : Towards a theory of institutional development in organizations

    Författare :Mikael Klingvall; Göran Ahrne; Fredrik Liljeros; Felix Reed-Tsochas; Stockholms universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; organizational development; social influence; organizational culture; institutional development; adaptability; agent-based model; Sociology; Sociologi; Sociology; sociologi;

    Sammanfattning : Organizations, once established, tend not to change, typically going obsolete as society continues to evolve. This makes adaptability an important issue. Organizational members must make sense to each other, or coordination suffers. LÄS MER