Search for dissertations about: "Björn Johansson"

Showing result 16 - 20 of 68 swedish dissertations containing the words Björn Johansson.

  2. 16. Low Level Operations and Learning in Computer Vision

    Author : Björn Johansson; Gösta Granlund; Rudolf Mester; Linköpings universitet; []
    Keywords : TECHNOLOGY; TEKNIKVETENSKAP;

    Abstract : This thesis presents some concepts and methods for low level computer vision and learning, with object recognition as the primary application.An efficient method for detection of local rotational symmetries in images is presented. Rotational symmetries include circle patterns, star patterns, and certain high curvature patterns. READ MORE

  4. 17. Surface and colloid chemistry of flotation deinking

    Author : Björn M. Johansson; KTH; []
    Keywords : ;

    Abstract : This study has been concentrated on explaining the surfacechemical phenomena that occur during the agglomeration andflotation of ink particles. The mechanism of agglomeration ofink particles in a calcium-fatty acid collector system has beenstudied. READ MORE

  5. 18. Model management for computational system design

    Author : Björn Johansson; Farrokh Mistree; Linköpings universitet; []
    Keywords : ;

    Abstract : 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. READ MORE

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

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

    Abstract : 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. READ MORE

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

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

    Abstract : 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. READ MORE