Sökning: "stress enhanced"

Visar resultat 16 - 20 av 310 avhandlingar innehållade orden stress enhanced.

  1. 16. Adhesion and Residual Stress Characterization of HVOF Sprayed Inconel 718 Coatings

    Författare :Christophe Lyphout; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; HVOF; Residual Stress; Inconel 718; Thermal spray; Adhesion Strength; Finite Element Method; High Velocity Oxy-Fuel;

    Sammanfattning : Thermal spray technology in general is nowadays recognized as an industrial process, mature enough to apply coatings on different substrate materials that protect parts against wear, corrosion, heat, or combinations of these. The quality demands on coating homogeneity and adhesion strength are, nowhere more than in the automotive and aeronautic industries, continuously increasing. LÄS MER

  3. 17. Hard Turning of Bearing Steels. Controlling residual stress and improving fatigue life

    Författare :Michael Jacobson; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; x-ray diffraction; bearing steel; residual stress; fatigue life; cutting conditions; hard turning;

    Sammanfattning : There are many different precision mechanical components such as bearings, fuel injectors, gears and hydraulic components, which are made of hardened steels, and have to be machined to a high degree of precision. Traditionally these components are being ground. LÄS MER

  4. 18. Impairment of Endothelial Thromboprotective Function by Haemodynamic and Inflammatory Stress - Implications for hypertensive disease

    Författare :Erik Ulfhammer; Göteborgs universitet; []
    Nyckelord :tissue-type plasminogen activator; endothelium; fibrinolysis; hypertension; shear stress; strain; antihypertensive agents; inflammation; TNF-alpha; NF-kappaB; MAPK;

    Sammanfattning : The physiologically most important activator of intravascular fibrinolysis is tissue-type plasminogen activator (t-PA). The endothelium synthesizes and stores t-PA and regulated release of the enzyme is an important local protective response to prevent thrombus extension. LÄS MER

  5. 19. Light stress proteins from Arabidopsis thaliana : identification, characterisation and expression

    Författare :Mounia Heddad; Phillip Mullineaux; Stockholms universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Biochemistry; Biokemi; biokemi; Biochemistry;

    Sammanfattning : Plants are major players in the vital process of photosynthesis that takes place in organelles called chloroplasts. Plant's immobility makes them victims of the tremendous fluctuations in light intensity and quality that often lead to inhibition of their physiological functions. LÄS MER

  7. 20. Oxidative stress, macrophages, iron, and atherosclerosis

    Författare :Wei Li; Linköpings universitet; []
    Nyckelord :MEDICINE; MEDICIN;

    Sammanfattning : Macrophages have a great capacity to take up exogenous material, such as oxidatively modified low density lipoproteins (oxLDL) and different sources of iron containing structures. OxLDL is taken up into macrophage lysosomes by receptor-mediated endocytosis, but poorly degraded, resulting in foam-cell formation. LÄS MER