Search for dissertations about: "small-angle neutron-scattering"

Showing result 1 - 5 of 38 swedish dissertations containing the words small-angle neutron-scattering.

  2. 1. Phase Separation in Stainless Steels Studied by Small-angle Neutron Scattering

    Author : Xin Xu; Peter Hedström; Joakim Odqvist; John Ågren; Cristelle Pareige; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Fe-Cr alloys; stainless steels; spinodal decomposition; phase separation; small-angle neutron scattering; mechanical properties; Teknisk materialvetenskap; Materials Science and Engineering;

    Abstract : Fe-Cr based steels, i.e. stainless steels, possessing a combination of excellent corrosion resistance and good mechanical properties, have indispensable applications ranging from low-end cooking utensils, to sophisticated components for nuclear power plants. READ MORE

  4. 2. Bone structure characterisation using neutron scattering techniques

    Author : Elin Törnquist; Avdelningen för Biomedicinsk teknik; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; biomechanics; neutron tomography; x-ray tomography; small-angle neutron scattering SANS ; small-angle x-ray scattering SAXS ; Experimental mechanics; implant integration; tomography; nanoscale; microscale; mechanical properties;

    Abstract : Bones have unique mechanical properties that originate from their main constituents: mineral, in the form of hydroxyapatite (HAp) crystals, and collagen type-I. The stiffness of the HAp mineral combined with the flexibility of collagen, and their intricate hierarchical arrangement from the smallest individual building blocks to the organ level, result in a composite tissue with a remarkable ability to withstand complex loading scenarios. READ MORE

  5. 3. Neutron scattering studies of hard metals

    Author : Ahmet Bahadir Yildiz; Peter Hedström; Annika Borgenstam; Joakim Odqvist; Daniele Mari; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Hard metals; cemented carbides; small angle neutron scattering; neutron diffraction; in-situ characterization; grain coarsening; phase separation; Teknisk materialvetenskap; Materials Science and Engineering;

    Abstract : Since their discovery about 100 years ago, tools made of hard metals have been the enablers of development in various areas: from drilling subway lines for more sustainable cities to the machining of complex next-generation airplane engine parts for reduced CO2 emissions. An increase in properties of hard metals thus leads to efficient operations with shorter lead-time, less environmental footprint, and reduced cost. READ MORE

  6. 4. Grazing incidence small angle neutron scattering as a tool to study curved biomembranes on nanostructured surfaces

    Author : Karolina Mothander; NanoLund: Centre for Nanoscience; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; GISANS; Reflectometry; Neutron scattering; Phospholipid; supported lipid bilayer; Nanowires; confocal microscopy; QCM-D;

    Abstract : Curvature in lipid-based biomembranes provides compartmentalization in cells and can act as regulator of biological activity in living systems. The study of these biomembranes require novel model systems and new methods. In this work I have used a supported phospholipid bilayer on a hexagonal array of silicon nanowires. READ MORE

  7. 5. MYC and MexR interactions with DNA : a Small Angle Scattering perspective

    Author : Francesca Caporaletti; Maria Sunnerhagen; Björn Wallner; Anne Martel; Ann Terry; Linköpings universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : Protein-DNA complexes govern transcription, that is, the cellular mechanism that converts the information stored in the DNA into proteins. These complexes need to be highly dynamic to respond to external factors that regulate their functions in agreement with what the cells need at that time. READ MORE