Sökning: "random media"

Visar resultat 21 - 25 av 37 avhandlingar innehållade orden random media.

  1. 21. Atherosclerosis and Insulin Resistance AIR A cross-sectional study of 58-year old men

    Författare :Lena Bokemark; Göteborgs universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Insulin resistance; intima-media thickness; LDL particle size; atherosclerosis.;

    Sammanfattning : The main aim of the study was to test the hypothesis that insulin resistance is associated with atherosclerotic disease in the carotid and femoral arteries as measured using the ultrasound technique in clinically healthy 58-year old men with varying degrees of obesity and insulin resistance. The subjects were recruited from the general population and were free from clinical cardiovascular disease, diabetes mellitus and treatment with antihypertensive, lipid-lowering and anti-diabetic drugs (n=818). LÄS MER

  3. 22. Some developments of the homogenization theory and related questions

    Författare :Jonas Engström; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Mathematics; Matematik;

    Sammanfattning : This thesis is mainly devoted to homogenization theory and it consists of an introduction, five papers and two conference proceedings. The introduction gives an elementary presentation of the basic ideas in homogenization theory, serves as an overview of the field and points out where the results of this thesis fit in. LÄS MER

  4. 23. Non-equilibrium dynamics of exactly solvable quantum many-body systems

    Författare :Per Moosavi; Edwin Langmann; Denis Bernard; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Fysik; Physics;

    Sammanfattning : Recent experimental advances on ultracold atomic gases and trapped ions have made it possible to simulate exactly solvable quantum systems of interacting particles. In particular, the feasibility of making rapid changes, so-called quantum quenches, to such set-ups has allowed experimentalists to probe non-equilibrium phenomena in closed interacting quantum systems. LÄS MER

  5. 24. Controlled Degradation of Polyester-Ethers Revealed by Mass Spectrometry Techniques

    Författare :Anders Höglund; Ann-Christine Albertsson; Jukka Seppälä; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Degradation products; biocompatibility; -caprolactone; 1; 5-dioxepan-2-one; 6-hydroxyhexanoic acid; 3- 2-hydroxyethoxy propanoic acid; oligomers; Polymer chemistry; Polymerkemi;

    Sammanfattning : The use of degradable biomedical materials in e.g. tissue engineering and controlled drug delivery has changed medical science during recent decades. The key question is to adapt the material with respect to mechanical properties, surface characteristics, and degradation profile to suit its intended application. LÄS MER

  7. 25. The Diversity and Unity of Reactor Noise Theory

    Författare :Zhifeng Kuang; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; neutron fluctuations; master equations; correlations; stochastic processes; the Langevin technique; power spectra; reactor noise; covariances;

    Sammanfattning : The study of reactor noise theory concerns questions about cause and effect relationships, and the utilisation of random noise in nuclear reactor systems. The diversity of reactor noise theory arises from the variety of noise sources, the various mathematical treatments applied and the various practical purposes. LÄS MER