Sökning: "materialegenskaper"

Visar resultat 31 - 35 av 71 avhandlingar innehållade ordet materialegenskaper.

  1. 31. Design of Functional Degradable Aliphatic Polyesters and Porous Tissue Engineering Scaffolds

    Författare :Peter Plikk; Ann-Christine Albertsson; Marek Kowalczuk; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Ring-opening polymerization; Stannous octoate; 2; 2’-azoisobutyronitrile; 1; 5-dioxepane-2-one; ε-caprolactone; L-lactide; Trimethylene carbonate; 2-methylene-1; 3-dioxe-5-pene; Copolymer; Porous scaffold; Porous tubular scaffold; Electron beam; Gamma irradiation; Polymer chemistry; Polymerkemi;

    Sammanfattning : The regeneration of damaged tissues or organs using porous scaffolds which act as temporary guides for the patient’s own cells, i.e. tissue engineering, is a means to overcome the shortcomings of current standard medical treatments. LÄS MER

  3. 32. Analyses of shotcrete stress states due to varying lining thickness and irregular rock surfaces

    Författare :Andreas Sjölander; Anders Ansell; Richard Malm; Fredrik Johansson; Jan Alemo; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Shotcrete; cracking; shrinkage; block load; varying thickness; numerical simulations; fibre reinforcement; Byggvetenskap; Civil and Architectural Engineering;

    Sammanfattning : Shotcrete is sprayed concrete applied pneumatically under high pressure and was invented in the beginning of the 1900's. This new technique decreased the construction time and since steel fibres were introduced in the shotcrete during the 1970's, shotcrete has been the primary support method for tunnels. LÄS MER

  4. 33. Thermoset resins using technical lignin as a base constituent

    Författare :Marcus Jawerth; Mats Johansson; Heikki Tenhu; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Fiber- och polymervetenskap; Fibre and Polymer Science;

    Sammanfattning : The need to find sustainable paths for our society is imminent to tackle environmental concerns of today. The majority of all plastic materials are produced from crude oil but in the future a much larger portion must originate from renewable resources to address some of these problems. LÄS MER

  5. 34. Den lilla tekniken i det stora skeendet : Nanoteknik, gränser och omvärldsuppfattningar

    Författare :Anja-Sofi Karhi; Carl-Reinhold Bråkenhielm; Linköpings universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; ICT; nanotechnology; phenomenography; dichotomy; shared figures of thoughts; border exceed; ways in which people experience; Natural – Unnatural; Living – Not-living; Exterior – Interior; IKT; nanoteknik; omvärldsuppfattningar; fenomenografi; tankefigurer; dikotomier; gränsöverskridanden; naturligt och ickenaturligt; levande och ickelevande materia; yta och innehåll; Technology and social change; Teknik och social förändring;

    Sammanfattning : Sedan några år tillbaka intar nanoteknik en position som ett av de mest "heta" och högst prioriterade forsknings- och utvecklingsområdena. Tilltron är stark till att nanotekniken kommer att påverka nästan alla aspekter av våra liv. LÄS MER

  7. 35. Exploring bis-MPA Based Dendritic Structures in Biomedicine

    Författare :Oliver Andrén; Michael Malkoch; Peter Löwenhielm; Sandra Garcia Gallego; Karen Wooley; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Dendrimers; Polymers; antibacterial; self-assembly; Kemi; Chemistry;

    Sammanfattning : In the last decades there has been significant advances in polymer chemistry. New coupling chemistries, polymerization techniques and accelerated approaches enable researches to push the limits of structural control. LÄS MER