Sökning: "Restraint system"

Visar resultat 11 - 15 av 18 avhandlingar innehållade orden Restraint system.

  1. 11. Nanocrystalline Alumina-Zirconia Thin Films Grown by Magnetron Sputtering

    Författare :David Huy Trinh; Hans Högberg; Marianne Collin; Lars Hultman; Ingrid Reineck; Mats Halvarsson; Linköpings universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP;

    Sammanfattning : Alumina-zirconia thin films have been deposited using dual magnetron sputtering. Film growth was performed at relatively low-to-medium temperatures, ranging from ~300°C to 810 °C. Different substrates were applied, including silicon (100), and industrially relevant materials, such as WC-Co hardmetal. LÄS MER

  3. 12. Near surface atmospheric flow over high latitude glaciers

    Författare :Oskar Parmhed; Erland Källén; Branko Grisogono; Haraldur Ólafsson; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Stable boundary layer; Ekman layer; Katabatic flow; gravity wave; low-level jets; Meteorology; Meteorologi;

    Sammanfattning : In this thesis various descriptions of the near surface atmospheric flow over a high latitude glacier is used in an effort to increase our understanding of the basic flow dynamics there. Through their contribution to sea-level change, mountain glaciers play a significant role in Earth’s climate system. LÄS MER

  4. 13. Development of a Mechanical Model for Rear Impacts: Evaluation of Volunteer Responses and Validation of the Model

    Författare :Johan Davidsson; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; whiplash; validation; rear impact; dummy; seat; spine; rear-end collision; volunteer; BioRID; neck;

    Sammanfattning : The objective of this research has been to develop a biofidelic crash-test dummy to facilitate design of seat systems with enhanced occupant protection in rear-end collisions. These frequent collisions may cause soft-tissue neck injuries to occupants in struck vehicles. LÄS MER

  5. 14. Land Matters : Agrofuels, Unequal Exchange, and Appropriation of Ecological Space

    Författare :Kenneth Hermele; Humanekologi; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Land; Agrofuels; Ecologically unequal exchange; Environmental load displacement; Land grabbing; Malthus; Brazil; Ethanol; Resource wars; Land Use change; Indirect land use change;

    Sammanfattning : As a global society we are entering an era where land areas and land-based resources are coming to the fore once again for capital accumulation and economic growth, for the first time since the end of the 18th century when Malthus forecasted a contradiction between population growth and agricultural output. That constraint on economic growth, imposed by limited land areas, was overcome by the combination of fossil fuels (coal, oil) and appropriation of space overseas (colonialism, trade). LÄS MER

  7. 15. Hygro- and hydroexpansion of paper : Influence of fibre-joint formation and fibre sorptivity

    Författare :Per A. Larsson; Lars Wågberg; Kaarlo Niskanen; KTH; []
    Nyckelord :;

    Sammanfattning : Paper is a versatile, cheap and environment-friendly material. Nevertheless, there are several factors limiting its usefulness, and one of the major issues is that cellulosic and ligno-cellulosic fibres spontaneously sorb water. At the same time, the water uptake changes the dimensions of the paper. LÄS MER