Sökning: "Jan Berg"

Visar resultat 6 - 10 av 41 avhandlingar innehållade orden Jan Berg.

  1. 6. Wood and fibre mechanics related to the thermomechanical pulping process

    Författare :Jan-Erik Berg; Per Engstrand; Per A. Gradin; Tomas Björkqvist; Mittuniversitetet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Acoustic emission; Chips; Compression tests; Defibration; Disc refiners; Energy consumption; Fibre structure; Force sensors; Fracture; Impact strength; Mathematical analysis; Moisture content; Picea abies; Refining; Stiffness degradation; Strains; Temperature; Thermomechanical pulping; Velocity; Chemical engineering; Kemiteknik;

    Sammanfattning : The main objective of this thesis was to improve the understanding of some aspects on wood and fibre mechanics related to conditions in the thermomechanical pulping process. Another objective was to measure the power distribution between the rotating plates in a refiner. LÄS MER

  3. 7. Everyday Mobility and Travel Activities during the first years of Retirement

    Författare :Jessica Berg; Jan-Erik Hagberg; Marianne Abramsson; Lena Levin; Kerstin Westin; Linköpings universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Ageing; retirement; mobility; travel activities; place; time-geography; interviews; travel diaries; qualitative longitudinal analysis; åldrande; pensionering; mobilitet; resande; aktivitet; plats; tidsgeografi; intervjuer; resdagböcker; kvalitativ longitudinell analys; 11 Road: Personal transport;

    Sammanfattning : Mobility is central to living an independent life, to participating in society, and  to maintaining well-being in later life. The point of departure in this thesis is that retirement implies changes in time-space use and interruption in routines, which influence demands and preconditions for mobility in different ways. LÄS MER

  4. 8. På spaning efter en svensk modell : Idéer och vägval i arbetsgivarpolitiken 1897-1909

    Författare :Jan O. Berg; Staffan Källström; Henrik Björck; Christer Ericsson; Stockholms universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; The Swedish model; paternalism; employer organisation; freedom of work; freedom to organize; strike; lockout; strike-breaker; loyal worker; the gift; den svenska modellen; patriarkalism; paternalism; arbetsgivarorganisation; arbetets frihet; föreningsfrihet; strejk; lockout; strejkbrytare; arbetsvillig; gåvan; History of science and ideas; Idé- o lärdomshistoria; idéhistoria; History of Ideas;

    Sammanfattning : The period saw the founding of the first Swedish employers´ associations as a reaction to the preceding decades´ growth of industrial trade unions. Conflicting ideas fought about supremacy. LÄS MER

  5. 9. REFORMERS PÅVERKAN PÅ LÄRARES UNDERVISNING I GRUNDSKOLAN OCH FÖRSKOLAN : En läroplansteoretisk studie om undervisningsuppdraget och lärarrollen i förändring

    Författare :Benita Berg; Eva Ärlemalm-Hagsér; Jan Olsson; Karin Franzén; Christian Eidevald; Mälardalens universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; förskola; grundskola; läroplan; matematik; reformer; undervisning; Didactics; didaktik;

    Sammanfattning : The overall aim of this thesis is to use a curriculum theoretical perspective to contrib­ute knowledge about the impact of recent reforms on teachers’/preschool teachers’ teaching, with a special focus on mathematics. The thesis takes its starting point in a licentiate thesis that was completed in 2014. LÄS MER

  7. 10. Stable and High-Order Finite Difference Methods for Multiphysics Flow Problems

    Författare :Jens Berg; Jan Nordström; Per Lötstedt; David Zingg; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Summation-by-parts; Simultaneous Approximation Term; Stability; High-order accuracy; Finite difference methods; Dual consistency; Beräkningsvetenskap med inriktning mot numerisk analys; Scientific Computing with specialization in Numerical Analysis;

    Sammanfattning : Partial differential equations (PDEs) are used to model various phenomena in nature and society, ranging from the motion of fluids and electromagnetic waves to the stock market and traffic jams. There are many methods for numerically approximating solutions to PDEs. LÄS MER