Sökning: "lundström"

Visar resultat 11 - 15 av 242 avhandlingar innehållade ordet lundström.

  1. 11. Mammographic breast density and postmenopausal hormone therapy

    Författare :Eva Lundström; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Mammographic breast density; mammography; menopause; hormone therapy; tibolone; low dose intrauterine progestogen; Syndecan-1.;

    Sammanfattning : Breast cancer is the most frequent malignancy among women in the western world. More than one million women are estimated to be diagnosed with the disease every year. The breast is a target organ for sex steroids and hormonal treatments have been found to increase the risk for breast cancer. LÄS MER

  3. 12. Modelling of fatigue crack propagation in Inconel 718 under hold time conditions

    Författare :Erik Lundström; Kjell Simonsson; Tomas Månsson; David Gustafsson; Johan Moverare; Martin Hughes; Linköpings universitet; []
    Nyckelord :;

    Sammanfattning : In this thesis an investigation and modelling of the fatigue crack propagation in the nickel based superalloy Inconel 718, with a special emphasis on the effect of hold times, is presented. The modelling work has been concentrated on describing the hold time fatigue crack propagation by using the concept of a damaged zone in front of the crack tip, which is believed to have a lowered resistance against crack propagation. LÄS MER

  4. 13. Singular Value Computations for Toeplitz Matrices and Subspace Tracking

    Författare :Eva Lundström; Henk van der Vorst; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : This thesis addresses the problem of computing the largest singular values and corresponding singular vectors of a Toeplitz matrix. These are often requested in signal processing and system identification to extract the signal from the noise. LÄS MER

  5. 14. Voice function and quality of life in laryngectomees

    Författare :Elisabet Lundström; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Individuals who undergo laryngectomy, surgical removal of the larynx, loose their normal voice. The breathing pattern is altered to permanent tracheostomal breathing. A new voice can be established by use of a segment in the lower part of the pharynx and the most upper part of the esophagus, the pharyngo-esophageal (PE) segment. LÄS MER

  7. 15. Induction heating of carbon fibre reinforced polymer composites : Characterization and modelling

    Författare :Fredrik Lundström; Industriell Produktion; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Carbon fibre reinforced polymers; Induction heating; Material characterization; Thermal properties; Electrical conductivity; Numerical modelling;

    Sammanfattning : Carbon fibre reinforced polymers (CFRP) are lightweight materials with great potential due to their high strength and stiffness relative to their weight. This enables weight reduction in, for example, vehicles, which is important in reducing energy consumption. LÄS MER