Sökning: "distortions"

Visar resultat 6 - 10 av 202 avhandlingar innehållade ordet distortions.

  1. 6. Predictions of manufacturing induced shape distortions : high performance thermoset composites

    Författare :J. Magnus Svanberg; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Polymera konstruktionsmaterial; Polymeric Composite Materials;

    Sammanfattning : High performance composites usually consist of continuous fibres and a thermoset matrix. A well-known example is carbon fibre epoxy composites. When this kind of material is cured residual stresses and/or shape distortions are produced owing to thermally and chemically induced volumetric strains. LÄS MER

  3. 7. An Experimental Investigation of Shape Distortions in Aerospace Composites

    Författare :Erik Hörberg; Malin Åkermo; Stefan Hallström; Patrik Fernberg; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Flyg- och rymdteknik; Aerospace Engineering;

    Sammanfattning : Composite materials are increasingly used in primary structure of modern commercial aircraft. Its excellent material characteristics enables reduction of structural weight compared to traditional metal solutions and thereby offers reduction of fuel consumption and carbon dioxide (CO2) emissions. LÄS MER

  4. 8. Credibility, Inflation and Incentive Distortions in the Welfare State

    Författare :Alvaro Forteza; Göteborgs universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES;

    Sammanfattning : .... LÄS MER

  5. 9. Beyond Pigou: Climate Change Mitigation, Policy Making and Distortions

    Författare :Alex Schmitt; John Hassler; Massimo Tavoni; Stockholms universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; climate change; climate-economy modeling; income taxation; time consistency; political instability; Economics; nationalekonomi;

    Sammanfattning : This thesis consists of three essays.The first essay, “Optimal Carbon and Income Taxation”, analyzes carbon taxation while taking into account that taxes are set by national policy makers. I add two features, namely distortionary income taxation and lack of commitment to future policies, to a standard climate-economy model. LÄS MER

  7. 10. Quality assurance for magnetic resonance imaging (MRI) in radiotherapy

    Författare :Mary Adjeiwaah; Tufve Nyholm; Rob HN Tijssen; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Magnetic resonance imaging; Radiotherapy; geometric distortions; patient-induced susceptibilities MR-only; radiofysik; radiation physics;

    Sammanfattning : Magnetic resonance imaging (MRI) utilizes the magnetic properties of tissues to generate image-forming signals. MRI has exquisite soft-tissue contrast and since tumors are mainly soft-tissues, it offers improved delineation of the target volume and nearby organs at risk. LÄS MER