Search for dissertations about: "Donnan equilibrium"

Found 5 swedish dissertations containing the words Donnan equilibrium.

  1. 1. Ions in models of articular cartilage : The importance of electrostatic interactions for transport and equilibrium distribution

    Author : Jenny Algotsson; Fysikalisk kemi; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; articular cartilage; Donnan equilibrium; diffusion; MRI; Monte Carlo simulations; dGEMRIC;

    Abstract : Osteoarthritis (OA) is a degenerative disease that affects articular cartilage, which covers the surfaces of the bones in synovial joints. At later stages the disease can result in major loss of articular cartilage and thus lead to major disability. READ MORE

  2. 2. Further insights into kraft cooking kinetics

    Author : Johannes Bogren; Chalmers University of Technology; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Delignification; Donnan equilibrium; Memory effects; Hexenuronic acid; Hofmeister effects; Modelling; Kraft cooking; Ionic effects; Reaction kinetics;

    Abstract : .... READ MORE

  3. 3. Cation adsorption properties of substituted kraft fibres : an experimental and thermodynamic modelling study

    Author : Ola Sundman; Lars-Olof Öhman; Per Persson; Janne Laine; Umeå universitet; []
    Keywords : MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Kraft fibres; Donnan equilibria; ion exchange; acid base properties; potentiometric titrations; thermodynamic modelling; NPEs; GaAl12 7 ; EXAFS; Chemistry; Kemi;

    Abstract : Acid/base and metal ion adsorption properties have been investigated for a range of chemically modified bleached Kraft fibre materials (pulps). The studies were performed via potentiometric titrations, Flame Atomic Absorbtion (and Emission) Spectroscopy, Inductively Coupled Plasma Optical Emission Spectroscopy and Extended X-ray Absorbtion Fine Structure measurements. READ MORE

  4. 4. Some aspects of adsorption in displacement washing of pulp

    Author : Karin Mattsson; Chalmers University of Technology; []
    Keywords : ;

    Abstract : AbstractThere are many aspects on how to improve the paper pulping process. In the washing sequence improvements to decrease the discharge to the environment can be achieved by closure of the liquid system and recycling liquid from other parts pulp process. READ MORE

  5. 5. Model studies of cellulose fibers and films and their relation to paper strength

    Author : Susanna Fält; KTH; []
    Keywords : absorption; carboxymethyl cellulose; cellulose fibers; dissolving pulps;

    Abstract : The objectives of this work were (i) to develop a new methodfor the preparation of thin cellulose model films, (ii) to usethese model films for swelling measurements and (iii) to relatethe swelling of fibers and films to the dry strength ofpaper.In the new film preparation method, NMMO(N-methylmorpholine-N-oxide) was used to dissolve cellulose andDMSO (dimethyl sulfoxide) was added to control the viscosity ofthe cellulose solution. READ MORE