Sökning: "Auxiliary variables"

Visar resultat 6 - 10 av 23 avhandlingar innehållade orden Auxiliary variables.

  1. 6. Computational modeling of polycrystals using gradient crystal plasticity

    Författare :Mikkel Grymer; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; parallel algorithms; crystal plasticity; dual mixed finite element method; gradient hardening; grain modeling;

    Sammanfattning : This thesis treats the modeling of grain size dependence inmicrostructure models of metals. It is shown how gradient hardening, in a thermodynamically consistent fashion, can be included into a crystal plasticity model, which is used as the constitutive model in each grain of the polycrystal. LÄS MER

  3. 7. Essays on Model Assisted Survey Planning

    Författare :Anders Holmberg; Bengt Rosén; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Statistics; Statistik; Statistics; Statistik; Statistics; statistik;

    Sammanfattning : The quality of sample survey results is to a large degree dependent on decisions made by survey statisticians at the planning stage. The first paper studies two issues related to the planning stage: (i) the sensitivity of model assumptions concerning the relation between the size measure and a study variable in without replacement probability proportional-to-size sampling (πps sampling), and (ii) properties of practicable sample selection schemes for fixed size πps sampling. LÄS MER

  4. 8. Data-driven lead-acid battery lifetime prognostics

    Författare :Sergii Voronov; Erik Frisk; Mattias Krysander; Jonas Biteus; Thorsteinn Rögnvaldsson; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES;

    Sammanfattning : To efficiently transport goods by heavy-duty trucks, it is important that vehicles have a high degree of availability and in particular avoid becoming standing by the road unable to continue the transport mission. An unplanned stop by the road does not only cost due to the delay in delivery, but can also lead to a damaged cargo. LÄS MER

  5. 9. Perfectly matched layers for second order wave equations

    Författare :Kenneth Duru; Gunilla Kreiss; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Beräkningsvetenskap med inriktning mot numerisk analys; Scientific Computing with specialization in Numerical Analysis;

    Sammanfattning : Numerical simulation of propagating waves in unbounded spatial domains is a challenge common to many branches of engineering and applied mathematics. Perfectly matched layers (PML) are a novel technique for simulating the absorption of waves in open domains. LÄS MER

  7. 10. Nederländskans komen och svenskans komma : En kontrastiv undersökning

    Författare :Annika Johansson; Ingrid Wikén Bonde; Tomas Riad; Harry Perridon; Stockholms universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; contrastivity; Dutch verb komen; Swedish verb komma; corpus-based; networkmodel; prototype theory; grammaticalization; Dutch language; Nederländska;

    Sammanfattning : The aim of this dissertation is to give a detailed analysis of the Dutch verb komen ‘come’ and the Swedish verb komma ‘come’ based on a systematic comparison. Focus has been placed on grammatical polysemy and the study is written within the framework of cognitive linguistics. LÄS MER