Search for dissertations about: "RATIO ANALYSIS"

Showing result 1 - 5 of 960 swedish dissertations containing the words RATIO ANALYSIS.

  1. 1. Global stability analysis of complex fluids

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Iman Lashgari; KTH.; KTH.; [2013]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; non-Newtonian flow; Carreau model; Oldroyd-B model; FENE-P model; modal analysis; nonmodal analysis; sensitivity analysis;

    Abstract : The main focus of this work is on the non-Newtonian effects on the inertial instabilities in shear flows. Both inelastic (Carreau) and elastic models (Oldroyd-B and FENE-P) have been employed to examine the main features of the non-Newtonian fluids; shear-thinning, shear-thickening and elasticity. READ MORE

  2. 2. Analysis of Deformation of Gas Diffusion Layers and the Impact on Performance of PEM Fuel Cells

    University dissertation from Department of Energy Sciences, Lund University

    Author : Jiatang Wang; Lunds universitet.; Lund University.; [2017-07]
    Keywords : PEM fuel cell; compression ratio; assembly pressure; porosity; deformed GDL; electric resistance; transport phenomena; model; performance; analysis; OpenFOAM;

    Abstract : Proton exchange membrane (PEM) fuel cells have been promoted due to significant breakthroughs in various aspects and increasing public interests. The porous features of the gas diffusion layer (GDL) and the necessary assembly processes generate localized pressure forces on the channel/shoulder structure of the bi-polar plates (BPP). READ MORE

  3. 3. Analysis of melanins

    University dissertation from Gerd Odh Olsson, Dept of Pharmacology, Sölveg 10, S-223 62 Lund, Sweden

    Author : Gerd Odh Olsson; Lunds universitet.; Lund University.; [1998]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; PPT-II; PPT-I; DDT; MIF; tyrosinase related protein. dopachrome tautomerase; 3-dicarboxylic acid; pyrrole-2; 5-tricarboxylic acid; 3; thiazole-4; 5-dicarboxylic acid; Pharmacological sciences; pharmacognosy; pharmacy; toxicology; Farmakologi; farmakognosi; farmaci; toxikologi;

    Abstract : Mammalian melanins are of two major types, eumelanins and peheomelanins, which often occur together, then called mixed-type melanins. A method has been developed for analysing the various forms of melanins. READ MORE

  4. 4. Analysis of ginesenosides

    University dissertation from Stockholm : Karolinska Institutet, false

    Author : Jian-fang Cui; Karolinska Institutet.; Karolinska Institutet.; [1995]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES;

    Abstract : New analytical methods were developed in order to evaluate commercial ginseng preparations and to allow studies on urinary excretion of ginsenosides in humans after consumption of ginseng preparations. An optimized alkaline procedure was developed for cleavage of the glycosidic bonds that was clearly superior to previously reported hydrolysis procedures of ginsenosides because of (a) completeness of the reaction and (b) absence of the artifacts found in acid hydrolysis. READ MORE

  5. 5. Practical and physiological aspects of breath alcohol analysis

    University dissertation from Anaesthesiology and Intensive Care

    Author : David Grubb; Lunds universitet.; Lund University.; [2013]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Breath alcohol analysis; Mouth alcohol; Analytical performance; Blood breath ratio; Alcohol exchange; Standardization; Contact free analysis.;

    Abstract : Breath alcohol analysis constitutes sufficient material for the prosecution of drunk driving without the need for blood analysis. However, the prevailing method used for breath analysis lacks standardization of several physiological variables that cause a variation of the breath alcohol concentration (BrAC). READ MORE