Sökning: "Emulsions"

Visar resultat 21 - 25 av 72 avhandlingar innehållade ordet Emulsions.

  1. 21. Cellulose Dissolution and Amphiphilicity : Insights on the Emulsion Formation and Stabilization

    Författare :Carolina Costa; Magnus Norgren; Håkan Edlund; Orlando Rojas; Mittuniversitetet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : An amphiphilic polymer is expected to adsorb at the oil-water interface and be capable of stabilizing emulsions. Cellulose derivatives, cellulose nanoparticles and regenerated cellulose particles show an intrinsic amphiphilic character by self-assembling at oil-water interfaces and stabilizing emulsions without the aid of surfactants or any other co-stabilizers. LÄS MER

  3. 22. Water-based hydraulic fluids : rheology and elastohydrodynamic lubrication

    Författare :Ove Isaksson; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Datorstödd maskinkonstruktion; Computer Aided Design; Maskinelement; Machine Elements;

    Sammanfattning : Experiments have been carried out to measure traction, antiwear and rheological properties of water-based hydraulic fluids. Four types of fluids have been examined, emulsions, micro-emulsions, synthetic solutions and water-glycols. LÄS MER

  4. 23. Emulsion formation and stability - Impact of the dispersed state of the emulsifier on emulsification

    Författare :Emma Magnusson; Livsmedelsteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Emulsion; phospholipid; dispersed state; field flow fractionation; freeze-thaw stability;

    Sammanfattning : Emulsions find a variety of applications in for example food, cosmetics and pharmaceutical preparations. In order to obtain emulsions with desired properties it is important to understand how different factors, such as the properties of the emulsifier and the emulsification procedure, impact the final emulsion properties. LÄS MER

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

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

    Sammanfattning : 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. LÄS MER

  7. 25. Fat metabolism during total parenteral nutrition: A biochemical and ultra-structural study

    Författare :Bengt Roth; Anestesiologi och intensivvård; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Anaesthesiology; Intravenous Fat Emulsion - Lipid Metabolism - Lipoprotein lipase - Kupffer cells - - Histology - Fatty liver - Adverse reactions - Haemophagocytosis; intensive care; Anestesiologi; intensivvård;

    Sammanfattning : This thesis evaluates alterations in lipid metabolism and Kupffer cell morphology seen during total parenteral nutrition in healthy rats. During infusion of lipid emulsions, cholesterol and phospholipids accumulated in non-high density lipoproteins, while high density lipoproteins were enriched in triglycerides. LÄS MER