Sökning: "Björn Johansson"

Visar resultat 21 - 25 av 76 avhandlingar innehållade orden Björn Johansson.

  1. 21. Model management for computational system design

    Författare :Björn Johansson; Farrokh Mistree; Linköpings universitet; []
    Nyckelord :;

    Sammanfattning : Computational system design is as an area within engineering design that to a large extent is based on simulation models together with tools and methods for analysis and design. This area is becoming increasingly important for providing information to designers and decision makers early in the design process, and enabling qualitative decisions to be made. LÄS MER

  3. 22. On Virtual Development of Manufacturing Systems -Proposal for a Modular Discrete Event Simulation Methodology

    Författare :Björn Johansson; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Productivity Development; Knowledge; Manufacturing Systems; Discrete Event Simulation;

    Sammanfattning : This thesis formulates one approach on how to reuse and take advantage of knowledge and data for discrete event simulation of manufacturing systems. The approach uses modularity and division of knowledge in order to present a methodology for modular discrete event simulation. LÄS MER

  4. 23. Chemical Communication and Mate Choice : Investigations into the Meaning of a Fruit Fly Pheromone

    Författare :Björn G. Johansson; Göran Arnqvist; Fredrik Widemo; Anders Berglund; Allen Moore; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Ecology; Drosophila grimshawi; sexual selection; pheromone; mate choice; lekking; Ekologi; Terrestrial; freshwater and marine ecology; Terrestisk; limnisk och marin ekologi;

    Sammanfattning : Chemical signals are the most widely used form of sexual communication throughout the living world. However, there is in general little knowledge about what these signals actually communicate. The role of chemical signals, i.e. LÄS MER

  5. 24. Applications of hydrodynamic forces for membrane chromatography

    Författare :Björn Johansson Fast; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Membrane chromatography; FRAP; Protein accumulation; Supported lipid bilayer; Microfluidics; SEEC; Diffusion; Hydrodynamic forces; Label-free;

    Sammanfattning : Membrane proteins are proteins that reside in the cell membrane. Due to their position in the cell membrane, the barrier between the cell interior and exterior, they are vital to cell signaling. Moreover, the presence of membrane proteins in the cell's signaling pathways make membrane proteins important drug targets. LÄS MER

  7. 25. Hydrodynamic flow for deterministic sorting of cell-membrane components

    Författare :Björn Johansson Fast; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Gold nanoparticles; Diffusion; Microfluidics; Native membrane vesicles; Single particle tracking; Protein enrichment; Hydrodynamic forces; Supported lipid bilayer; Size determination;

    Sammanfattning : The biological membrane, an amphiphilic structure that is the barrier between the cell interior and exterior, is one of the vital building blocks of all cells. Not only does it define the outer boundaries of the cell, it also carries important biological function by virtue of the proteins and other molecules that constitute the membrane, the function of which is in turn intimately coupled to their association with the lipid-based membrane. LÄS MER