Search for dissertations about: "prop"

Showing result 21 - 25 of 27 swedish dissertations containing the word prop.

  2. 21. Wheeled Operads in Algebra, Geometry, and Quantization

    Author : Johan Granåker; Sergei A. Merkulov; Andrey Lazarev; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; operads; deformation theory; homotopy algebra; deformation quantization; MATHEMATICS; MATEMATIK; Mathematics; matematik;

    Abstract : The theory of generalized operads, the foundational conceptual framework of this thesis, has become a universal language, relating various areas such as algebraic topology, derived categories of algebras, deformation theory, differential geometry and the mathematical theory of quantization.The thesis consists of a preliminary chapter followed by four main chapters. READ MORE

  4. 22. Fast Particle Driven Instabilities in Tokamak Plasmas

    Author : Robert Nyqvist; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : The burning plasmas of the next generation tokamak fusion experiment ITERwill contain signicant populations of highly energetic ions. Both fusion gener-ated alpha particles and fast ions accelerated by auxiliary heating schemes arecapable of exciting instabilities in the Alfven frequency range, which may inturn cause redistribution of energetic particles and lead to deleterious eventssuch as e. READ MORE

  5. 23. Creep Behaviour of Titanium Aluminides and its Relation to Phase Distributions and Dislocation Structures

    Author : Dennis Lundström; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; gamma-TiAl; twinning; fatigue; dislocations; microstructure; thermal transport properties; creep;

    Abstract : The need for more efficient gas turbines with lowered fuel consumption and thereby lowered emission has recently lead to increased interest in low-density, .gamma.-based TiAl intermetallic alloys as a replacement of e.g. READ MORE

  6. 24. Mechanical properties of sound and of deteriorated softwood at different length scales : Poromicromechanical modeling and experimental investigations

    Author : Thomas K. Bader; Karin Hofstetter; Kristofer Gamstedt; Austria Vienna University of Technology; []
    Keywords : LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Byggteknik; Civil engineering; Forestry and Wood Technology; Skog och träteknik;

    Abstract : Due to its natural origin and its inherent heterogeneities, mechanical properties of wood are highly anisotropic and show a broad variability, not only between different wood species, but also within a tree. Similar to other biological materials, the wood mi- crostructure is well organized and hierarchically structured from the annual rings visible to the naked eye down to the wood polymers cellulose, hemicellulose, and lignin at the nanometer-scale. READ MORE

  7. 25. Modeling environment effects on spectroscopic properties of biomarkers and catalytic mechanisms in enzymes

    Author : Camilla Gustafsson; Patrick Norman; Daniel Escudero; KTH; []
    Keywords : Computational chemistry; spectroscopy; biocatalysis; water flow; biomarkers; Teoretisk kemi och biologi; Theoretical Chemistry and Biology;

    Abstract : Arguably, humans are in need of both better diagnostic tools to prevent pro- gression of diseases as well as greener catalysts for synthesis of chemicals.Neurodegenerative diseases affecting neurons in the brain leads to demen- tias, where Alzheimer’s disease (AD) is the most prevalent. READ MORE