Sökning: "restricted gels"

Visar resultat 1 - 5 av 6 avhandlingar innehållade orden restricted gels.

  1. 1. On the Modelling of Mechanical Dewatering in Papermaking

    Författare :Vinicius Lobosco; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; paper; modelling; dewatering; forming; wet pressing; fibre network stress; rheology; hysteresis; intra-fibre water; compressibility; structural stress; stress-strain; restricted gels; swelling;

    Sammanfattning : Most of the water fed into a paper machine is removedmechanically in the forming and press sections. One of thefactor which has an important influence on mechanicaldewatering, i.e. in both forming and pressing, is thestress-strain behaviour of the fibre network. LÄS MER

  3. 2. Phase Separation and Gelation of Biopolymers in Confined Geometries

    Författare :Sophia Wassén; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; gelation; gelatin–maltodextrin; whey protein isolate–gellan gum; structure evolution; confinement; biopolymer mixture; image analysis.; spinodal decomposition; phase separation; confocal laser scanning microscopy; microstructure;

    Sammanfattning : Many biopolymer mixtures exhibit segregative phase separation that generates regions enriched in one polymer and depleted in the other. Today, much is known of how phase separating biopolymer systems behaves in bulk phase, and the final morphology can be controlled and tailored with high precision. LÄS MER

  4. 3. Foam Formation and Starch Gelatinization with Alpha-Crystalline Emulsifiers

    Författare :Gisela Richardson; Livsmedelsteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Food and drink technology; Livsmedelsteknik; image analysis.; rheology; microscopy; amylose-lipid complex; gelatinization; dynamical arrest; amylose; starch; sponge cake; foam; emulsifier; alpha-gel; physical state;

    Sammanfattning : In the baking industry, emulsifiers in the alpha-gel state are used for foam formation. This thesis focuses on some parts of the effects of the emulsifier: how the foam formation and foam stability are influenced by the physical state of the emulsifier, how emulsifiers change the gelatinization and gel formation of starch, and the impact that these factors may have in a true product such as a sponge cake. LÄS MER

  5. 4. Mammalian brain acetylcholinesterase : a study of its solubilization, purification, molecular state and interactions with cholinergic ligands including an endogenous modulator

    Författare :Bertil Niklasson; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Affinity chromatography; caudate nucleus; acetylcholinesterase; tetracaine; décaméthonium; d-tubocurarine; edrophonium; fluoride ion; hysteric properties; endogenous ligands to AChE;

    Sammanfattning : Membrane bound AChE from calf brain caudate nucleus was solubilized by use of ion-free media in presence of 10~ M EDTA and 10“5M tetracaine. The irreversible release of AChE was more effectively inhibited by divalent ions compared to monovalent ions added to the medium. LÄS MER

  7. 5. Photocontact Allergy to Ketoprofen and Simultaneous Contact Allergies

    Författare :Victoria Marmgren; Yrkes- och miljödermatologi; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; ketoprofen; photoallergic contact dermatitis; cross-reactions; photoallergic; photopatch testing; Fragrance; patch testing; simultaneous reactions; occlusion;

    Sammanfattning : Ketoprofen is a non-steroidal anti-inflammatory drug with analgesic, antipyretic, and anti-inflammatory properties. It is available in both oral and topical formulations. Photocontact allergy to topically applied ketoprofen has been the most frequent side effect of the formulation, and is fairly well studied. LÄS MER