Sökning: "mean stress relaxation"

Visar resultat 1 - 5 av 13 avhandlingar innehållade orden mean stress relaxation.

  1. 1. Lean, mean sleep machine? : Effects and experiences of a sleep robot intervention for adults with insomnia

    Författare :Siri Jakobsson Støre; Annika Norell-Clarke; Maria Tillfors; Børge Sivertsen; Karlstads universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; ADHD; anxiety; depression; hyperarousal; insomnia; robot; sleep; Psykologi; Psychology;

    Sammanfattning : Many adults suffer from insomnia disorder, struggling to fall asleep, stay asleep, or with early morning awakenings. Hyperarousal is an important predisposing, precipitating and perpetuating factor to insomnia. Anxiety, depression and ADHD are common comorbid disorders, with shared cognitive, behavioral, genetic, and neurological features. LÄS MER

  3. 2. Modelling of cyclic and viscous behaviour of materials for gas turbine applications - with a view towards fatigue life predictions

    Författare :Rebecka Brommesson; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; mean stress relaxation; parameter identification; Haynes 282; viscoplasticity; Ti-6242; fatigue life prediction; intergranular fracture; micromechanical model; sensitivity analysis; finite element method; Plasticity; crystal plasticity; cyclic hardening softening;

    Sammanfattning : Critical jet engine components are exposed to high temperatures. These components are also required to have low weight in order to reduce fuel consumption and allow for heavier payload, higher speed, and longer flight distance of the aircraft. LÄS MER

  4. 3. Applied relaxation as treatment of vasomotor symptoms in postmenopausal women

    Författare :Elisabeth Nedstrand; Aila Collins; Linköpings universitet; []
    Nyckelord :MEDICINE; MEDICIN;

    Sammanfattning : Vasomotor symptoms often disturb the night sleep and may lead to tiredness and mood disturbances. Many women who suffer from vasomotor symptoms ask for medical help and are often prescribed hormonal treatment. LÄS MER

  5. 4. Constitutive and fatigue crack propagation behaviour of Inconel 718

    Författare :David Gustafsson; Kjell Simonsson; Johan Moverare; Sjöström Sören; Sten Johansson; Christer Persson; Linköpings universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Nickel-base superalloys constitutive modelling mean stress relaxation fatigue crack propagation hold times grain boundary embrittlement;

    Sammanfattning : In this licentiate thesis the work done in the TURBO POWER project Influence of high temperature hold times on the fatigue life of nickel-based superalloys will be presented. The overall objective of this project is to develop and evaluate tools for designing against fatigue in gas turbine applications, with special focus on the nickel-based superalloy Inconel 718. LÄS MER

  7. 5. Articular distension in arthroscopy : an experimental study on intra- and extra-articular effects of pressure

    Författare :Anders Sperber; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Arthroscopy; intra-articular pressure; in vivo measurements; knee joint capsule; tensile properties; stress-strain; multicompartmental pressures; lower leg venous blood flow; ultrasound; acromioplasty; intra-muscular pressure; fluid absorption; shoul;

    Sammanfattning : The purpose of this thesis was to analyse the effects of various intra-articular pressures (IAP) on soft tissues and to provide guidelines for the choice of safe infusion pressures during arthroscopy. The tensile properties of the knee-joint capsule were recorded from stress-strain-relaxation tests within 170 mmHg IAP. LÄS MER