Sökning: "molecular weight distribution."

Visar resultat 11 - 15 av 91 avhandlingar innehållade orden molecular weight distribution..

  1. 11. Flocculation with Polyelectrolytes in Latex and Microbial Systems

    Författare :Leif Eriksson; Fysikalisk kemi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; floc strength; shear sensitivity; fractal dimension; floc structure; patch flocculation; adhesion; bridging; flocculation; charge compensation; adsorption; ionic strength; molecular weight; charge density; Cationic polyelectrolytes; latex; bacteria; activ; Physical chemistry; Fysikalisk kemi;

    Sammanfattning : Adsorption of cationic polyelectrolytes onto polystyrene latices was studied as function of polymer chemical composition and molecular weight, polymer and surface charge density and ionic strength. The ratio between polymer charges and surface charges was close to one when distances between polymer and surface charges were equal. LÄS MER

  3. 12. Metabolism and Biological Monitoring of Organic Acid Anhydrides

    Författare :Christian Lindh; Avdelningen för arbets- och miljömedicin; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; rats; human; distribution; analysis; biological monitoring; autoradiography; adducts; hemoglobin; plasma; urine; Hexahydrophthalic anhydride; methyltetrahydrophthalic anhydride; guinea pigs; Occupational health; industrial medicine; Yrkesmedicin; arbetsmiljömedicin;

    Sammanfattning : The aim of this thesis was to describe the metabolism and to develope methods for biological monitoring for two organic acid anhydrides (OAAs), namely hexahydrophthalic anhydride (HHPA) and methylhexa-hydrophthalic anhydride (MHHPA). The OAAs are reactive, low molecular weight chemicals used in vast quantities in the industry. LÄS MER

  4. 13. Monoglyceride Lipase and Hormone-Sensitive Lipase - Molecular and structural aspects

    Författare :Marie Karlsson; Institutionen för experimentell medicinsk vetenskap; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; genomic organisation; baculovirus-insect cells; catalytic triad; alfa beta hydrolase fold; tissue distribution; cDNA sequence; lipolysis; adipocyte; monoglyceride lipase; hormone-sensitive lipase; chromosomal localisation; Clinical biology; Klinisk biologi;

    Sammanfattning : Triglycerides in the adipocyte are hydrolysed by means of three consecutive reactions through the combined action of two lipases: hormone-sensitive lipase (HSL) and monoglyceride lipase (MGL). HSL catalyses the first and rate-limiting step, i.e. LÄS MER

  5. 14. Characterization of chemical pulp fiber surfaces with an emphasis on the hemicelluloses

    Författare :John Sjöberg; KTH; []
    Nyckelord :adsorption; analytical pyrolysis; capillary electrophoresis; carbohydrate; chemical pulp; ECF pulp; enzymatic hydrolysis; fibre surface; hardwood; hemicellulose; hexenuronic acid; kraft pulp; molecular weight distribution; peeling; residual lignin; s;

    Sammanfattning : .... LÄS MER

  7. 15. Selenium Compounds in Milk. Studies of Selenoproteins, Selenium Enrichment and Oxidative Stability of Food

    Författare :Tien Hoac; Tillämpad biokemi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; metabolism; Biokemi; Metabolism; Biochemistry; Naturvetenskap; Natural science; Copper; Zinc; Oxidative stability; Thioredoxin reductase; Glutathione peroxidase; Selenoproteins; Milk; Selenium supplementation; Technological sciences; Teknik;

    Sammanfattning : Selenium is an essential nutrient and in animals and humans it can either be specifically incorporated into proteins as selenocysteine or randomly as selenomethionine. It can also occur as low-molecular-weight compounds and the form of selenium in foods may also influence food quality. LÄS MER