Sökning: "stress concentration"

Visar resultat 11 - 15 av 332 avhandlingar innehållade orden stress concentration.

  1. 11. Analysis of geometrically modified adhesive joints in steel beams strengthened with composite laminates

    Författare :Reza Haghani Dogaheh; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; FE analysis; Stress concentration; Fillet; Laminate; Reverse tapering; Normal tapering; Adhesive joint; FRP;

    Sammanfattning : The use of bonded FRP laminates to strengthen and upgrade existing structures has attracted a great deal of attention during the past two decades. The attractiveness of this method is mainly due to the superior material properties of FRP laminates such as high strength and stiffness, as well as advantages associated with the bonding technique, such as ease of application and good fatigue performance. LÄS MER

  3. 12. Genetic adaptation to soil acidification in four grasses

    Författare :Pernilla Göransson; Biologiska institutionen; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Växtekologi; Plant ecology; Deschampsia flexuosa; Deschampsia cespitosa; Elymus caninus; Poa nemoralis; arbuscular mycorrhiza; stress; tolerance; genetic variation; local adaptation; Al; Soil acidification; pH;

    Sammanfattning : Soil acidification has become a source of serious concern in many parts of the world. In southern Sweden, the deposition of acidifying substances, such as nitrogen and sulphur compounds, has decreased the mean pH of forest soils by almost one unit since the 1950s. LÄS MER

  4. 13. Vertigo as a companion through life : Empirical studies regarding psychological factors in Menière's disease

    Författare :Christina Hägnebo; Uppsala universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Psychology; coping; emotions; Menière s disease; psychology; quality of life; stress; Psykologi; Psychology; Psykologi; klinisk psykologi; Clinical Psychology;

    Sammanfattning : Vertigo, tinnitus and hearing impairment constitute the cardinal symptoms in Menière'sdisease. This inner ear disorder, the aetiology of which is not fully understood, may causeconsiderable distress to the individual. Previous psychological research regardingMenière's disease has mainly focused on general personality traits. LÄS MER

  5. 14. Experiences, symptoms and signs in 3-11 year old children undergoing day surgery within the context of the perioperative dialogue

    Författare :Berith Wennström; Göteborgs universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; anxiety; children; cortisol; day surgery; drawings; nursing; perioperative dialogue; stress; symptoms;

    Sammanfattning : Surgical interventions create real, imagined, or potential fear or anxiety in many children, thus highlighting a need for the health professionals who work with them to increasingly act as facilitators. The overall aim of the present thesis was to gain a deeper understanding of 3-11 year-old children’s perioperative symptoms, signs, experiences and main concerns when attending hospital for day surgery and of how they manage this situation. LÄS MER

  7. 15. Glutathione during stress in man

    Författare :Urban Fläring; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Glutathione, a tripeptide (gamma-glutamyl, -cysteinyl, -glycine), is quantitatively the most important antioxidant in man, protecting cells from the toxic effects of reactive oxygen species (ROS). These highly reactive molecules cause tissue damage and are produced at high rates during critical illness including sepsis [1-4]. LÄS MER