Search for dissertations about: "stress chain"

Showing result 11 - 15 of 118 swedish dissertations containing the words stress chain.

  2. 11. Improving Stress Tolerance in Industrial Saccharomyces cerevisiae Strains for Ethanol Production from Lignocellulosic Biomass

    Author : Valeria Wallace; Teknisk mikrobiologi; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Saccharomyces cerevisiae; lignocellulose; ethanol; inhibitors; temperature; stress tolerance;

    Abstract : The present work was aimed at developing industrial S. cerevisiae strains with improved tolerance to two types of stressors encountered during the fermentation of lignocellulosic biomass that affect ethanol yield and productivity, namely hydrolysate-derived inhibitors and high temperature, and at understanding the response of yeast and mechanisms of adaptation to such stressors. READ MORE

  4. 12. Effects of manufacturing chain on mechanical performance : Study on heat treatment of powertrain components

    Author : Johan Fahlkrans; Arne Melander; Bengt Lindberg; Stefan Jonsson; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Heat treatment; case hardening; carburising; induction hardening; gas quenching; tempering; straightening; fatigue strength; contact fatigue; fracture mechanics; Industriell ekonomi och organisation; Industrial Economics and Management; Production Engineering; Industriell produktion; Teknisk materialvetenskap; Materials Science and Engineering;

    Abstract : The increasing demands for lightweight designs with high strength call for improved manufacturing processes regarding heat treatment of steel. The manufacturing process has considerable potential to improve the mechanical performance and to obtain more reliable results with less variation. READ MORE

  5. 13. Retinal pigment epithelial cells, oxidative stress and lipofuscin : relation to age-related macular degeneration

    Author : Staffan Sundelin; Stefan Seregard; Linköpings universitet; []
    Keywords : MEDICINE; MEDICIN;

    Abstract : In developed countries, age-related macular degeneration (AMD) is the most common cause of loss of central vision in people over the age of 65. The retinal pigment epithelium (RPE) appears to be the site of early pathological changes in AMD. READ MORE

  6. 14. Stress induced virulence of Staphylococcus aureus and Listeria monocytogenes

    Author : Nikoleta Zeaki; Teknisk mikrobiologi; []
    Keywords : ;

    Abstract : Control of the dissemination of pathogens in the food production chain is an on-going process with new challenges emerging as pathogenic bacteria evolve and express enhanced virulence characteristics. Staphylococcus aureus and Listeria monocytogenes are two notorious pathogens responsible for staphylococcal food poisoning (SFP) and listeriosis: a foodborne intoxication and an infectious disease respectively. READ MORE

  7. 15. Modelling of induction heat treatment in a manufacturing chain

    Author : Martin Fisk; Jesper Hattel; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Material Mechanics; Materialmekanik;

    Abstract : Due to increased competitiveness in the aerospace industry, deeper knowledge of the manufacturing process is needed. It is, for example, known that the microstructure is important for the performance of the components. READ MORE