Search for dissertations about: "Lars Berglund"

Showing result 11 - 15 of 60 swedish dissertations containing the words Lars Berglund.

  2. 11. Nanostructured Cellulose Biocomposites : Effects from dispersion, network and interface

    Author : Mohd Farhan Ansari; Lars Berglund; Jean-Francois Gerard; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Wood; cellulose nanofibrils; hygromechanical properties; network structure; thermoset; polymer matrix composites; natural fiber composites; pulp fiber; strain hardening; humidity; Fiber- och polymervetenskap; Fibre and Polymer Science;

    Abstract : The major load bearing component in native wood, cellulose nanofibrils, are potential candidates for use as reinforcement in polymer matrices. This study is based on nanocellulose composites and attempts to prepare and characterize biocomposites with high nanocellulose content and investigate the influence of nanostructure on macroscopic properties. READ MORE

  4. 12. Crystalline cellulose in bulk and at interfaces as studied by atomistic computer simulations

    Author : Malin Bergenstråhle; Lars Berglund; Stephen Eichhorn; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Cellulose; molecular dynamics simulation; interfaces; Chemistry; Kemi;

    Abstract : Cellulose is a linear polysaccharide, serving as reinforcement in plant cell walls.Understanding its structure and properties is of importance in the developmentof nanostructured cellulose materials. READ MORE

  5. 13. Effects of Cell Wall Structure on Tensile Properties of Hardwood : Effect of down-regulation of lignin on mechanical performance of transgenic hybrid aspen. Effect of chemical degradation on mechanical performance of archaeological oak from the Vasa ship

    Author : Ingela Bjurhager; Lars Berglund; Ulrike Wegst; KTH; []
    Keywords : tensile strength; transgenic hybrid aspen; lignin down-regulation; the Vasa ship; chemical degradation; longitudinell draghållfasthet; transgen hybridasp; ligninnedreglering; Vasaskeppet; kemisk nedbrytning; TECHNOLOGY; TEKNIKVETENSKAP;

    Abstract : Wood is a complex material and the mechanical properties are influencedby a number of structural parameters. The objective of this study has been toinvestigate the relationship between the structure and the mechanical propertiesof hardwood. Two levels were of special interest, viz. READ MORE

  6. 14. Mechanical behaviour of hardwoods : effects from cellular and cell wall structures

    Author : Ingela Bjurhager; Lars Berglund; Ingo Burgert; Magnus Wålinder; KTH; []
    Keywords : LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; Wood fibre and forest products; Träfiber- och virkeslära;

    Abstract : Syftet med den här avhandlingen var att undersöka mekaniska egenskaper hos olika arter av lövträd, och koppla egenskaperna till cell- och cellväggsstrukturen i materialet. Arterna som omfattades av undersökningen var Europeisk asp (Populus tremula), hybridasp (Populus tremula x Populus tremuloides) och ek (Quercus robur). READ MORE

  7. 15. Ovarian Reserve and Assisted Reproduction

    Author : Thomas Brodin; Jan Holte; Matts Olovsson; Lars Berglund; Juha Tapanainen; Uppsala universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; AFC; AMH; anti-Müllerian hormone; antral follicle count; follicle-stimulating hormone; FSH; ICSI; infertility; intracytoplasmic sperm injection; in vitro fertilization; IVF; LH; live birth; luteinizing hormone; menstrual cycle; menstrual cycle length; ovarian reserve; pregnancy; reproductive endocrinology; reproductive technology; Medicinsk vetenskap; Medical Science;

    Abstract : Treatment success in IVF-ICSI is mainly limited by female age, but differences in ovarian reserve (OR; the remaining pool of oocytes and their quality) between individuals modify treatment prerequisites among women of similar age. OR may be assessed by OR tests (ORTs). READ MORE