Sökning: "Johan Jansson"

Visar resultat 6 - 10 av 42 avhandlingar innehållade orden Johan Jansson.

  1. 6. Where to shop? : understanding consumers' choices of grocery stores

    Författare :Elin Nilsson; Anna-Carin Nordvall; Agneta Marell; Johan Jansson; Johan Hagberg; Umeå universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; consumer decision-making; store choice; situation-based choices; cognitive proximity; företagsekonomi; Business Studies;

    Sammanfattning : For the last couple of decades consumer decision-making has been of increasing interest for retail as well as for consumer behaviour research. Food shopping constitutes a unique type of shopping behaviour. LÄS MER

  3. 7. Patient-Specific Finite Element Modeling of the Blood Flow in the Left Ventricle of a Human Heart

    Författare :Jeannette Hiromi Spühler; Johan Hoffman; Johan Jansson; Mariano Vazquez; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Finite element method; Arbitrary Lagrangian-Eulerian method; Fluid-Structure interaction; Contact model; parallel algorithm; blood flow; left ventricle; aortic valves; patient-specific heart model;

    Sammanfattning : Heart disease is the leading cause of death in the world. Therefore, numerous studies are undertaken to identify indicators which can be applied to discover cardiac dysfunctions at an early age. LÄS MER

  4. 8. Multiscale Constitutive Modeling of Heterogeneous Engineering Materials

    Författare :Johan Jansson; Kent Salomonsson; Jakob Olofsson; Julian J. Rimoli; Jönköping University; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : This work deals with different methods used to determine heterogeneous constitutive model parameters for macro-scale finite element models, based on microstructural variations, caused by the manufacturing process. These methods could be applied to decrease modeling errors associated with the material behavior, improving the predictive capabilities of structural analyses in simulation-driven industrial product development. LÄS MER

  5. 9. Process-Induced Local Material Variations in Finite Element Simulations of Cast and Fibre Reinforced Injection Moulded Components

    Författare :Johan Jansson; Kent Salomonsson; Jakob Olofsson; Jönköping University; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : The purpose of this thesis is to provide an overview of the methods used in the appended papers, in order to consider heterogeneous material properties in finite element simulations by using process simulations as input. The work deals with both injection moulded and cast components, and focuses on process-induced local material variations and their effect on component performance. LÄS MER

  7. 10. Automated Computational Modeling

    Författare :Johan Jansson; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; multi-adaptivity; Galerkin; ODE; PDE; plasticity; elasticity; FEM; automated;

    Sammanfattning : This thesis is part of the FEniCS project of Automation of Computational Mathematical Modeling (ACMM) as the modern manifestation of the basic principle of science:formulating mathematical equations (modeling) and solving equations (computation). The vision of FEniCS is to set a new standard towards the goals of generality, efficiency, and simplicity, concerning mathematical methodology, implementation, and application. LÄS MER