Search for dissertations about: "checks"

Showing result 11 - 15 of 80 swedish dissertations containing the word checks.

  2. 11. A study of contaminated lubricants concerning wear, rheological properties and sample withdrawal

    Author : Sven Berg; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Maskinelement; Machine Elements;

    Abstract : The wear of a machine, whether it is due to fatigue or abrasive wear, will add contaminants, in the form of particulates, to the system in question. Since a total breakdown of the machine can be rather costly, one wants to be able to foresee breakdowns and increase the machine life. READ MORE

  4. 12. Laminated Veneer Products : Shape Stability and Effect of Enhanced Formability on Bond-Line Strength

    Author : Lars Blomqvist; Jimmy Johansson; Hans Petersson; Dick Sandberg; Peter Niemz; Linnéuniversitetet; []
    Keywords : LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; Forestry and Wood Technology; Skog och träteknik;

    Abstract : This thesis concerns two aspects of the manufacture of laminated veneer products (LVPs). The first aspect is related to the possible improvement of the shape stability of LVPs, and the second has its starting point in the modification of the veneer for enhanced formability as well as the question of whether and how these modifications affect the bond-line strength. READ MORE

  5. 13. Extracting Legitimacy : Input, Throughput, and Output Legitimacy in the Mining Industry

    Author : Gregory A Poelzer; Simon Matti; Karin Beland Lindahl; Sverker Jagers; John Barry; Luleå tekniska universitet; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Legitimacy; Governance; Mining; Resource Development; Political Science; Statsvetenskap;

    Abstract : Legitimacy affects questions on constitutional design, international political regimes, and specific policy sectors. Although it permeates society at various levels, legitimacy becomes particularly crucial when decisions hold long-term or permanent consequences. READ MORE

  6. 14. A Swedish dilemma : Aging during the search for a national insurance, 1884-1913

    Author : Mark Magnuson; Christer Ahlberger; Klas Nyberg; Karlstads universitet; []
    Keywords : HUMANIORA; HUMANITIES; demography; family; poor relief; old age; retirement; income; smallholders; History; Historia;

    Abstract : Non-wage holders made up a significant portion of Sweden’s population in 1900. Yet, there are surprisingly few studies covering their formative role in the universal coverage of Sweden’s Pension Act of 1913. READ MORE

  7. 15. Rolling Contact Fatigue of Railway Rails with Emphasis on Crack Initiation

    Author : Jonas Ringsberg; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; variable amplitude; crack closure; rolling contact fatigue; crack propagation; railway rails; damage accumulation; critical plane approach; crack initiation; plasticity; multiaxial fatigue;

    Abstract : Increased traffic density and the heavier axle loads of modern trains have led to severe problems with rolling contact fatigue (RCF) which cause initiation of surface cracks in railheads. In this thesis, a specific type of surface crack, the head check, is studied numerically with emphasis on fatigue crack initiation. READ MORE