Search for dissertations about: "urea"

Showing result 21 - 25 of 197 swedish dissertations containing the word urea.

  2. 21. Hydrophilic gels based on polyurethane urea

    Author : Ingrid Gustafson; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Polyurethanes; pendant double bonds; polymer gels;

    Abstract : .... READ MORE

  4. 22. Structure Dependent Chemical and Biological Interactions of Poly(urethane urea)s

    Author : Katrin Gisselfält; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; biomaterial; synthesis; hydrogen bonding; biological interactions; structure; properties; poly urethane urea ;

    Abstract : Poly(urethane urea)s, PUURs, are widely used in both industrial and biological applications because of excellent physical and mechanical properties and good biocompatibility in a variety of applications. Both the processing and the tailoring of specific properties of PUUR demand great knowledge of structure-property relationships. READ MORE

  5. 23. NOx Abatement Technique for Marine Diesel Engines - Improved Marine SCR Systems

    Author : Mathias Magnusson; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Water; ECA compliance.; IMO Tier III; Marine applications; Human element; NOx reduction; Sulfur dioxide; urea-SCR; Human-Machine system;

    Abstract : Growing awareness of the environmental implications of nitrogen oxide (NOX) emissions, such as eutrophication and acidification on land and at sea, has contributed to the development of more stringent international NOX legislations within the framework of the International Maritime Organization (IMO). The most stringent IMO legislation, i.e. READ MORE

  6. 24. Bio-Inspired Urea Dosing and NOx Conversion : using a Biomimetic Effervescent Injector

    Author : Peter Larsson; Förbränningsmotorer; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Bio-Inspired; Biomimetics; Bombardier Beetle; AdBlue; DEF; AUS-32; SCR; Exhaust After-treatment; Dosing; Nitrogen Oxides;

    Abstract : Transport of people and freight on-road have a big impact on the total energy use in the world. The majority of these transports is propelled with diesel engines and the reason is simply that the diesel engine is better than the gasoline engine due to lower fuel consumption. But the cost of this is the increase in dangerous nitrogen oxides (NOx). READ MORE

  7. 25. On microvascular blood flow assessment with the new microdialysis urea clearance technique

    Author : Simon Farnebo; Folke Sjöberg; Ola Collin; Linköpings universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; microdialysis; microcirculation; Plastic surgery; Plastikkirurgi;

    Abstract : The aim of this thesis was to develop and evaluate a new way of monitoring blood flow with microdialysis. A thin catheter consisting of a semipermeable membrane is implanted in the tissue being studied. READ MORE