Sökning: "measuring methods"

Visar resultat 26 - 30 av 950 avhandlingar innehållade orden measuring methods.

  1. 26. Laser doppler tissue flowmetry : fiberoptic methods in microvascular research

    Författare :Göran Salerud; Linköpings universitet; []
    Nyckelord :MEDICINE; MEDICIN;

    Sammanfattning : Laser Doppler flowmetry (LDF) constitutes a method for measuring the flux of blood cells in the microcirculatory bed. Photons are scattered in the moving blood cells, where they undergo a frequency shift according to the Doppler principle. LÄS MER

  3. 27. Methods of measuring the moisture diffusivity at high moisture levels

    Författare :Mårten Janz; Avdelningen för Byggnadsmaterial; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; fukttransport; materialegenskaper; permeabilitet; teori; beräkningsmetoder; mätmetoder; byggmaterial; forskningsresultat;

    Sammanfattning : The purpose of this licentiate study is to analyze capillarity transport in building materials, and in order to do that, develop a new measurement method by which the moisture diffusivity at high moisture levels can be measured in an easy way.... LÄS MER

  4. 28. Evaluation of passenger train concepts : Methods and results of measuring travellers' preferences in relation to cost

    Författare :Karl Kottenhoff; KTH; []
    Nyckelord :TECHNOLOGY; TEKNIKVETENSKAP;

    Sammanfattning : Politicians would like the railways to help to solve futuretransport and environmental problems. People can travel to andfrom work and on business during the day on modern trains whichare faster than any other alternative on journeys ofintermediate length. LÄS MER

  5. 29. Adaptive Finite Element Methods for Reactive Flow Problems

    Författare :Robert Sandboge; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; convection-diffusion-reaction problems; posteriori error estimates; adaptive finite element methods; ; adaptive finite element methods;

    Sammanfattning : We present and analyze adaptive finite element methods with reliable and efficient error control for a variety of convection-diffusion-reaction problems. The adaptive methods are based on a posteriori error estimates, where the error is estimated in terms of the residual of the computed solution, the mesh size and multiplicative factors measuring certain stability properties of an associated linearized dual problem. LÄS MER

  7. 30. Development and Validation of Bioanalytical Methods : Application to Melatonin and Selected Anti-Infective Drugs

    Författare :Susanne Römsing; Yngve Bergqvist; Åsa Emmer; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; african trypanosomiasis; melatonin; malaria; antiretroviral drugs; lumefantrine; tafenoquine; lamivudine; nevirapine; zidovudine; sampling paper; dried blood spots; capillary blood; antimalarial drugs; solid-phase extraction; liquid chromatography; Chemistry; Kemi; Analytical Chemistry; Analytisk kemi;

    Sammanfattning : This thesis describes bioanalytical methods for measuring melatonin and some anti-infective drugs in biological fluids. Solid-phase extraction (SPE) or protein precipitation was used for enrichment and purification of the analytes and Liquid Chromatography (LC) was used to analyze the samples. LÄS MER