Search for dissertations about: "rotation."

Showing result 1 - 5 of 462 swedish dissertations containing the word rotation..

  1. 1. Ventricular rotation and the rotation axis a new concept in cardiac function

    University dissertation from Umeå : Umeå university

    Author : Ulf Gustafsson; Umeå universitet.; [2010]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Left ventricular function; right ventricular function; rotation; twist; rotation axis; transition plane; ischemia; speckle tracking echocardiography; MEDICINE Dermatology and venerology; clinical genetics; internal medicine Internal medicine Cardiology; MEDICIN Dermatologi och venerologi; klinisk genetik; invärtesmedicin Invärtesmedicin Kardiologi; Cardiology; kardiologi;

    Abstract : Background: The twisting motion of the left ventricle (LV), with clockwise rotation at the base and counter clockwise rotation at the apex during systole, is a vital part of LV function. Even though LV rotation has been studied for decades, the rotation pattern has not been described in detail. READ MORE

  2. 2. Measurements of knee rotation in vivo - Development and evaluation of an external device

    University dissertation from Department of Health Sciences, Lund University

    Author : Per Otto Almquist; Lunds universitet.; Lund University.; [2012]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Knee; rotation; measurement; evaluation; gender; age; dislocating patella;

    Abstract : The overall aim of this work was to evaluate a newly developed measurement device, the Rottometer, for measuring knee rotation in different flexion angles with different applied torques, in order to establish the normal range of healthy knee rotation reference values and to study possible differences due to age and gender, as well as possible differences between patients with habitual dislocating patella (HDP) and healthy controls. The validity of the Rottometer was evaluated by simultaneous registrations with roentgen stereometric analysis (RSA) (paper I). READ MORE

  3. 3. Internal rotation in molecules : a nuclear magnetic resonance relaxation study

    University dissertation from Stockholm : Stockholm University

    Author : Anders Ericsson; [1981]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : .... READ MORE

  4. 4. Modelling and simulation of turbulence subject to system rotation

    University dissertation from Stockholm : KTH

    Author : Olof Grundestam; KTH.; [2006]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Direct numerical simulations; least-squares method; turbulence model; nonlinear modelling; system rotation; streamline curvature; high-lift aerodynamics; TECHNOLOGY Engineering mechanics Fluid mechanics; TEKNIKVETENSKAP Teknisk mekanik Strömningsmekanik;

    Abstract : Simulation and modelling of turbulent flows under influence of streamline curvature and system rotation have been considered. Direct numerical simulations have been performed for fully developed rotating turbulent channel flow using a pseudo-spectral code. The rotation numbers considered are larger than unity. READ MORE

  5. 5. Problems in the Classification Theory of Non-Associative Simple Algebras

    University dissertation from Uppsala : Universitetsbiblioteket

    Author : Erik Darpö; Uppsala universitet.; [2009]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Division algebra; flexible algebra; normal form; composition algebra; absolute valued algebra; vector product; rotation.; MATHEMATICS; MATEMATIK;

    Abstract : In spite of its 150 years history, the problem of classifying all finite-dimensional division algebras over a field k is still unsolved whenever k is not algebraically closed. The present thesis concerns some different aspects of this problem, and the related problems of classifying all composition and absolute valued algebras. READ MORE