Sökning: "fibre concentration"

Visar resultat 11 - 15 av 110 avhandlingar innehållade orden fibre concentration.

  1. 11. Fluid mechanics of fibre suspensions related to papermaking

    Författare :Richard Holm; Gustav Amberg; R. Krekes; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Applied mechanics; applied fluid mechanics; fibre suspensions; roll-forming; sedimentation; shear flow; Teknisk mekanik; Engineering mechanics; Teknisk mekanik;

    Sammanfattning : This thesis deals with fluid dynamic mechanisms related to papermaking, specif- ically: the initial dewatering mechanisms during roll-forming and fibre motion in sedimentation and in shear flow. Pressure and wire position measurements have been conducted in a model resembling the forming zone and the measured pressure distributions are shown to have more complex patterns than the simple model p / T/R (where T is the wire tension and R is the roll radius). LÄS MER

  3. 12. Dietary Fibre in Fermented Oats and Barley

    Författare :Adele Lambo; Avdelningen för livsmedel och läkemedel; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Näringslära; Nutrition; short-chain fatty acids ; exopolysaccharides; fermentation; barley; oats; Dietary fibre polysaccharides; cholesterol ;

    Sammanfattning : The physiological characteristics of native and bacterial exopolysaccharides (EPS) in oats and barley-based fermented products were studied in relation to the physico-chemical properties. Article I presents a parallel-randomized double blind clinical trial using a dairy-based product (control), an oat-based product (fermented with V2, which is a mixture (1:1) of Lactobacillus delbrueckii subsp. LÄS MER

  4. 13. Improving cellulose fibre properties by controlled adsorption of xylans

    Författare :Tobias Köhnke; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Isolation; Lignin-carbohydrate complexes; Adsorption; Extraction; Tensile strength; Aggregation; Softwood kraft pulp; Cellulose fibre; Hornification; Xylan;

    Sammanfattning : Hemicelluloses are, together with cellulose and pectins, the polysaccharide constituents in the cell walls of higher plants. Xylans are the most common hemicelluloses, and are considered to be the second most abundant biopolymer in the plant kingdom. LÄS MER

  5. 14. Plant foods, plasma enterolactone and breast cancer - with a focus on estrogen receptor status and genetic variation

    Författare :Emily Sonestedt; Diabetes - kardiovaskulär sjukdom; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; plant foods; breast cancer; fibre; epidemiology; lignans; enterolactone; plasma; estrogen receptor α; estrogen receptor β; polymorphisms; reliability; nutrition; prospective;

    Sammanfattning : Diets high in fibre have previously been associated with decreased risk of breast cancer in the Malmö Diet and Cancer cohort. Several potent compounds may exist in high-fibre diets that might protect against breast cancer, for example lignans. LÄS MER

  7. 15. Low consistency refining of mechanical pulp : process conditions and energy efficiency

    Författare :Stefan Andersson; Per Engstrand; Christer Sandberg; Mittuniversitetet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Mechanical pulping; low consistency refining; energy efficiency; rotor position; plate gap; fibre concentration;

    Sammanfattning : The thesis is focussed on low consistency (LC) refining of mechanical pulp. Theresearch included evaluations of energy efficiency, development of pulpproperties, the influence of fibre concentration on LC refining and effects of rotorposition in a two-zoned LC refiner. LÄS MER