Sökning: "compression load"

Visar resultat 1 - 5 av 166 avhandlingar innehållade orden compression load.

  1. 1. Wood fibre deformation in combined shear and compression

    Författare :Federica De Magistris; Anders Eriksson; Ola Dahlblom; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Arcan; compression; density; energy; finite element analysis; Iosipescu; Picea abies; shear; wood; Cellulose and paper engineering; Cellulosa- och pappersteknik;

    Sammanfattning : Mechanical pulping for producing pulps from softwood suitable for printing grade papers, like news, is a highly energy-intensive process consuming around 2000 kWh/t in electrical energy. Due to increasing energy costs and environmental issues there is a high demand for decreasing this energy consumption. LÄS MER

  3. 2. Accurate multiaxial rheometry of soft compressible solids

    Författare :Mårten Alkhagen; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; shear; rheometer; compression; stiffness; triaxial load cell; stress transducer; stress measurement; paralell plates; edge efect;

    Sammanfattning : .... LÄS MER

  4. 3. Compression Mechanics of Powders and Granular Materials Probed by Force Distributions and a Micromechanically Based Compaction Equation

    Författare :Foad Mahmoodi; Göran Frenning; Bruno Hancock; Uppsala universitet; []
    Nyckelord :compression; powder; mechanical properties; pellet; tablet; compaction equation; force distribution;

    Sammanfattning : The internal dynamics of powder systems under compression are as of yet not fully understood, and thus there is a necessity for approaches that can help in further clarifying and enhancing the level of understanding on this subject. To this end, the internal dynamics of powder systems under compression were probed by means of force distributions and a novel compaction equation. LÄS MER

  5. 4. Effects of high load on the growing spine. Experimental studies anda long-term follow-up of top athletes

    Författare :Olof Lundin; Göteborgs universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Athletes; adolescence; back pain; compression load; disc degeneration; intervertebral disc; radiography; spine; porcine spine; nucleus pulposus; vertebral endplate;

    Sammanfattning : A high prevalence of radiological abnormalities of the spine has been reported in some physically demanding sports. The significance and aetiology of these radiological abnormalities are still a matter of controversy and the long-term effects are not known. LÄS MER

  7. 5. Gasoline Engine HCCI Combustion - Extending the high load limit

    Författare :Daniel Dahl; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NVO; stratified charge; gasoline engine; high load; knock.; HCCI; stoichiometric; CAI; ringing; SCCI;

    Sammanfattning : There is an increasing global focus on reducing emissions of greenhouse gases.For the automotive industry this means reducing CO2 emissions of the vehiclesmanufactured, which is synonymous with reducing their fuel consumption oradapting them for using renewable fuels. LÄS MER