Sökning: "matrix effects"

Visar resultat 11 - 15 av 695 avhandlingar innehållade orden matrix effects.

  1. 11. Matrix and interface effects on microcracking in polymer composites

    Författare :Anders Sjögren; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Polymera konstruktionsmaterial; Polymeric Composite Materials;

    Sammanfattning : An underlying industrial problem for the present work is leakage of pressure vessels. Fluid leakage was confirmed to take place along a path of connected microcracks and delaminations. The thesis is concerned with the micromechanisms for microcracking studied by in-situ optical microscopy of cross-ply laminates. LÄS MER

  3. 12. Bowel irradiation: the effects on inflammation and matrix-metalloproteinases

    Författare :ANDREA POLISTENA; Kirurgi; []
    Nyckelord :Radiotherapy; Inflammation; Colorectal Cancer; MMP-7; Matrilysin; Bacteria;

    Sammanfattning : Background and aims: Radiotherapy is a valid treatment in cancer multimodal management but it is affected by severe systemic and local side effects. A murine small bowel model was used for the investigation of inflammatory features and apoptosis of local radiotherapy. LÄS MER

  4. 13. Effects of sex steroids and tamoxifen on matrix metalloproteinase activity and generation of endostatin in the breast

    Författare :Ulrika W. Nilsson; Charlotta Dabrosin; Lena Claesson-Welsh; Linköpings universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Angiogenesis; Breast cancer; TGF-β1; Endostatin; Estradiol; Mammary gland; Matrix metalloproteinases; MCF-7; Microdialysis; Nude mice; Tamoxifen; Oncology; Onkologi;

    Sammanfattning : Sex steroids are inevitable in women. However, long-term exposure to sex steroids increases the risk of breast cancer. A complete understanding of sex steroid control of the breast and how it relates to breast cancer risk is still lacking. LÄS MER

  5. 14. Determination of the Environmental Fate of Drug Substances and the Matrix Effects of Complex Samples in SFC/ESI-MS

    Författare :Alfred Haglind; Curt Pettersson; Mikael Hedeland; Torbjörn Arvidsson; Deirdre Cabooter; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; SFC-MS; matrix effect; ion cluster; Supercritical fluid chromatography; ESI; chiral separation; transformation products; LC-QToF; wetland microcosms; Analytical Pharmaceutical Chemistry; Analytisk farmaceutisk kemi;

    Sammanfattning : Awareness of the potential problems caused by drug compounds in the environment has increased over the last decade, both among researchers and with the public. This thesis describes the development of analytical methods and their application to wetlands constructed for purification of wastewater from e.g. drug compounds. LÄS MER

  7. 15. Fatigue of Metal Matrix Composites

    Författare :Magnus Levin; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; mechanical properties; microstructures; manufacture; DMMC;

    Sammanfattning : This thesis treats the mechanical properties of discontinuously reinforced metal matrix composites, DMMCs, in general and their fatigue properties in particular. Methods of manufacture, microstructures and resulting mechanical properties of DMMCs are reviewed in the introductory part. LÄS MER