Sökning: "central volume"

Visar resultat 6 - 10 av 195 avhandlingar innehållade orden central volume.

  1. 6. Utmattningsanalys av järnvägsbroar : En fallstudie av stålbroarna mellan Stockholm Central och Söder Mälarstrand, baserat på teoretiska analyser och töjningsmätningar

    Författare :Andreas Andersson; Håkan Sundquist; Kjell Eriksson; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Fatigue; Palmgren-Miners cumulative damage theory; Rainflow-analysis; railway bridges; finite element methods; Utmattning; Palmgren-Miners delskadehypotes; Rainflow-analys; järnvägsbroar; finita element metoder; Civil engineering and architecture; Samhällsbyggnadsteknik och arkitektur;

    Sammanfattning : Föreliggande avhandling omfattar en fallstudie av utmattningsrisken för järnvägsbroarna mellan Stockholm Central och Söder Mälarstrand. Ett stort antal utmattningssprickor i broarna över Söderström och Söder Mälarstrand har sedan länge varit kända. LÄS MER

  3. 7. Brain volume reduction over four decades in multiple sclerosis

    Författare :Juha Martola; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Introduction: Multiple sclerosis (MS) is a common neurological disease causing intermittent or cumulative disability, predominantly among women of child-bearing age. MS is a chronic inflammatory disease of the central nervous system (CNS) characterized by early axonal damage and early atrophy progression. LÄS MER

  4. 8. Minimally invasive cardiorespiratory monitoring and lung recruitment manoeuvres. Studies in animals and humans

    Författare :Helena Odenstedt; Göteborgs universitet; []
    Nyckelord :Monitoring; cardiac output; lung volume; lung recruitment manoeuvre; regional ventilation; acute lung injury; bronchoalveolar lavage; endotoxin; cardiac tamponade;

    Sammanfattning : Background: The maintenance of adequate oxygen delivery is essential to preserve organ function. The circulatory and respiratory systems interact closely to accomplish this. Optimising the function of these systems is of fundamental importance in critically ill patients. This requires adequate monitoring techniques. LÄS MER

  5. 9. Comparison of dating methods for paleoglacial reconstruction in Central Asia

    Författare :Natacha Gribenski; Krister N. Jansson; Arjen P. Stroeven; Frank Preusser; Jonathan M. Harbor; Marc Bateman; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Paleoglaciation; Optically stimulated luminescence dating; Cosmogenic nuclide exposure dating; EMCCD camera; Physical Geography; naturgeografi;

    Sammanfattning : Reconstruction of former Central Asian glaciers extents can provide valuable information about past atmospheric circulation variations. These extents, often marked by terminal moraines, need to be chronologically constrained. Cosmogenic nuclide exposure (CNE) dating is widely used to directly date moraines. LÄS MER

  7. 10. Extreme hemodilution: Effects of inhalation anesthetics, hypoxia, and blood loss. An Experimental study in pigs

    Författare :Henning Schou; Anestesiologi och intensivvård; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Anaesthesiology; oxygen saturation.; blood volume; coronary circulation; blood lactate; oxygen uptake; Anemia; oxygen delivery; intensive care; Anestesiologi; intensivvård;

    Sammanfattning : Hemodilution reduces the need for blood transfusion and hereby the risk for transmission of infectious agents. The present study investigated effects on systemic and myocardial circulation and oxygenation, and blood lactate concentrations; induced by nitrous oxide, isoflurane, hypoxia, and uncompensated blood loss, in pigs hemodiluted to a hematocrit of 11%. LÄS MER