Search for dissertations about: "Roger Bergström"

Found 3 swedish dissertations containing the words Roger Bergström.

  1. 1. Dynamic interactions between trees and foraging moose (Alces alces)

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Roger Bergström; [1987]

    Abstract : .... READ MORE

  2. 2. Fibre flocculation during twin-wire roll forming

    University dissertation from Stockholm : Fiber- och polymerteknologi

    Author : Roger Bergström; [2003]
    Keywords : ;

    Abstract : At the division of Paper Technology a forming unitconsisting of headbox, forming roll unit and reservoir systemfor suspension recirculation has been constructed, with themain purpose to experimentally study the paper forming event byvisually following the fibre flow phenomena in the formingzone.The effect of various running parameters upon the pressuredistribution, which is in correlation to the flow phenomenaoccuring during forming, has been studied with a flush mountedpressure sensor. READ MORE

  3. 3. Fibre flow mechanisms

    University dissertation from Stockholm : KTH

    Author : Roger Bergström; Ulf Björkman; Bo Norman; Mark Martinez; [2005]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Fibre flow; floc; shear; compression; fibre network; stress chain; TECHNOLOGY Chemical engineering Chemical process and manufacturing engineering Cellulose and paper engineering; TEKNIKVETENSKAP Kemiteknik Kemisk process- och produktionsteknik Cellulosa- och pappersteknik;

    Abstract : The flow behaviour, and primarily the floc-floc interaction, of pulp paper suspensions have been studied visually. Analogy models based on these observations have been developed as well as the identification of important parameters of floc break-up in low shear rate flow fields. READ MORE