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Visar resultat 11 - 15 av 18 avhandlingar som matchar ovanstående sökkriterier.

  1. 11. Contributions to the Modeling and Simulation of Mechanical Systems with Detailed Contact Analyses

    Författare :Iakov Nakhimovski; Dag Fritzson; Peter Fritzson; Claus Führer; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; multibody dynamics simulation; contacts; flexibility; elastic; floating reference frame; hybrid parallel; co-simulation; TLM; Computer science; Datavetenskap;

    Sammanfattning : The motivation for this thesis was the need for further development of multibody dynamics simulation packages focused on detailed contact analysis. The thesis makes contributions in three different areas:Part I summarizes the equations, algorithms and design decisions necessary for dynamics simulation of flexible bodies with moving contacts. LÄS MER

  3. 12. Fångstsamhälle i handelssystem : Åsele lappmark neolitikum - bronsålder

    Författare :Lars Göran Spång; Umeå universitet; []
    Nyckelord :HUMANIORA; HUMANITIES;

    Sammanfattning : This thesis is an attempt to explain economic and cultural changes during the Neolithic and Bronze Agefocusing on Asele Lappmark in Northern Sweden. The transitions are apparent in changing lithic technology,settlement structure traditions, land-uje patterning and the introduction of metallurgy. LÄS MER

  4. 13. Electronic Transport in Polymeric Solar Cells and Transistors

    Författare :Lars Mattias Andersson; Olle Inganäs; Nir Tessler; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Physics; Fysik;

    Sammanfattning : The main topic of this dissertation is electronic charge transport in polymeric and molecular organic materials and material blends intended for solar cell applications. Charge transport in polymers is a strange beast and carrier mobility is rarely a well-defined number. LÄS MER

  5. 14. Contributions to Modelling and Visualisation of Multibody Systems Simulations with Detailed Contact Analysis

    Författare :Alexander Siemers; Dag Fritzson; Peter Fritzson; Mats G. Larson; Linköpings universitet; []
    Nyckelord :TECHNOLOGY; TEKNIKVETENSKAP;

    Sammanfattning : The steadily increasing performance of modern computer systems is having a large influence on simulation technologies. It enables increasingly detailed simulations of larger and more comprehensive simulation models. Increasingly large amounts of numerical data are produced by these simulations. LÄS MER

  7. 15. New Venture Teams and Uncertainty: Implications of interacting in the unknown

    Författare :Pamela Nowell; Chalmers tekniska högskola; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; trust; structure; uncertainty; teamwork; new venture team; interaction;

    Sammanfattning : Entrepreneurship research has historically taken the perspective of the individual entrepreneur. This trend is slowly changing as mounting evidence shows that many new ventures are started by teams, and teamwork has important implications for new venture creation. LÄS MER