Search for dissertations about: "Anna Lif"

Showing result 1 - 5 of 6 swedish dissertations containing the words Anna Lif.

  2. 1. Water-in-diesel emulsion and microemulsion fuels: composition, structure and effect on emissions

    Author : Anna Lif; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NOx; microemulsion; combustion; diffusometry; alternative fuels; emission; emulsion; Fischer-Tropsch; MFC; PM; microfibrillated cellulose; NMR; surfactant; soot; diesel;

    Abstract : Water-in-diesel fuels, as emulsions and microemulsions, give reduced emissions of nitrogen oxides (NOx) and particulate matter (PM) in combustion in diesel engines compared to regular diesel. These fuels can contribute to an improved local environment in densely populated areas as they can replace regular diesel in existing vehicles without any engine modification requirements. READ MORE

  4. 2. Water-in-diesel emulsion and microemulsion fuels -The effect of water on emission levels

    Author : Anna Lif; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Combustion; Diesel; Soot; NMR; Microemulsion; PM; Emulsion; Surfactant; NOx; Diffusometry; Alternative fuels; Emission;

    Abstract : Water-in-diesel emulsions are known as environmentally favourable alternatives to conventional diesel fuel. Introducing water into the combustion results in reduced emissions of the health hazardous components nitrogen oxide (NOx) and particulate matter (PM). The concept of using emulsions is advantageous as it is easy to replace regular diesel. READ MORE

  5. 3. Cytokines in Metabolic Functions

    Author : Anna Benrick; Göteborgs universitet; []
    Keywords : IL-1; IL-6; LIF; obesity; fat mass; energy expenditure; hypothalamus; gp130 SNP; myocardial infarction;

    Abstract : During infections, circulating cytokines are largely produced by immune cells. In healthy obese individuals, large parts of these circulating cytokines are produced in adipose tissue, for instance by macrophages that have accumulated there. READ MORE

  6. 4. Capillary electroseparations in pharmaceutical analysis of basic drugs and related substances

    Author : Anna Maria Enlund; Uppsala universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Pharmaceutical chemistry; Farmaceutisk kemi; Pharmaceutical chemistry; Farmaceutisk kemi; analytisk farmaceutisk kemi; Analytical Pharmaceutical Chemistry;

    Abstract : Capillary electroseparation methods are exciting new techniques with very broad application areas and vast potential in pharmaceutical and biomedical analysis. To improve the limit of detection (LOD) capillary zone electrophoresis (CZE) has been combined with isotachophoretic (ITP) preconcentration in a single capillary. READ MORE

  7. 5. Si negative electrodes for Li-ion batteries : Aging mechanism studies by electrochemistry and photoelectron spectroscopy

    Author : Fredrik Lindgren; Fredrik Björefors; Kristina Edström; Anna Andersson; Miguel Ángel Muñoz; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : This thesis is focusing on the challenges when using Si as a possible new negative electrode material in Li-ion batteries. The overall aim is to contribute to a general understanding of the processes in the Si electrode, to identify aging mechanisms, and to evaluate how they influence the cycling performance. READ MORE