Search for dissertations about: "grafting"

Showing result 16 - 20 of 256 swedish dissertations containing the word grafting.

  1. 16. Biopolymers and materials from rapeseed straw biorefining

    University dissertation from KTH Royal Institute of Technology

    Author : Antonia Svärd; Ulrica Edlund; Elisabet Brännvall; Stefan Willför; [2018]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Rapeseed canola straw; biorefinery; hemicelluloses; lignin; cellulose; cellulose nanoparticles; films; grafting; thermoplastic; biocomposites; rapshalm; bioraffinaderi; hemicellulosa; lignin; cellulosa; cellulosa nano partiklar; hemicellulosafilm; ympning; termoplastisk; biokompositer; Fiber- och polymervetenskap; Fibre and Polymer Science;

    Abstract : Rapeseed straw was fractionated through a hydrothermal process into its hemicellulose, lignin and cellulose components. In the first step, hemicellulose-rich fractions were extracted. Xylan-rich fractions with high molecular weight, 30,000 – 50,000 g/mol, were obtained at 110 °C and 1.5 M NaOH. READ MORE

  2. 17. Modification of polymeric particles via surface grafting for 3D scaffold design

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Robertus Wahyu Nayan Nugroho; Ann-Christine Albertsson; Orlando J. Rojas; [2015]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; surface grafting; PLA; PLLA; hydrophilic polymers; particles; geometry; steric stabilization; atomic force microscopy AFM ; polyelectrolyte multilayers; 3D scaffold; bone tissue engineering; surface degradation;

    Abstract : Surface modification techniques have played important roles in various aspects of modern technology. They have been employed to improve substrates by altering surface physicochemical properties. READ MORE

  3. 18. Leg ulcer management in primary care with special reference to pinch grafting

    University dissertation from Rut F Öien, Department of Community Medicine, Malmö University Hospital

    Author : Rut Öien; [2002]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; rheumatology locomotion; Skelett; muskelsystem; reumatologi; General practice; medical training; Allmän medicinsk utövning; medicinsk utbildning; muscle system; Skeleton; diameter product; grid tracing; digital planimetry; ulcer size; pain relief; vasculitis; rheumatoid arthritis; cost analysis; healing rate; pinch grafting; aetiology; prevalence; Leg ulcer; primary care;

    Abstract : Wound management in primary and community care was investigated throughout a period of 12 years within a well-defined population in one county in Southern Sweden. The estimated prevalence of chronic leg and foot ulcers was 0.19% in 1998 and the mean prevalence was 0.20% during the years 1994-1998. READ MORE

  4. 19. Postoperative Atrial Fibrillation after Coronary Artery Bypass Grafting Risk factors and clinical outcome

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Emma Thorén; Elisabeth Ståhle; Elmir Omerovic; [2017]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; atrial fibrillation; coronary artery bypass grafting; coronary artery disease; epidemiology; morbidity; mortality; outcome;

    Abstract : Postoperative atrial fibrillation (POAF) is a common complication after coronary artery bypass grafting (CABG), and more knowledge is needed regarding prediction of POAF, the extent of early atrial fibrillation (AF) recurrence after discharge, and the associations between POAF and short and long-term overall and cause-specific mortality and morbidity.After CABG, 31-32% of all patients developed POAF. READ MORE

  5. 20. Birch xylan modification by lactide grafting

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Johanna Persson; Ann-Christine Albertsson; Monica Ek; Mikael Lindström; [2012]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : The wood based biorefinery concept has led to an increasing interest in the possibility of using hemicelluloses as a source for value added products. Hemicelluloses are dissolved in large amounts in the process liquor during kraft pulping. READ MORE