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Showing result 1 - 5 of 155 swedish dissertations matching the above criteria.

  2. 1. Tycho-Gaia and beyond: Combining data for precision astrometry

    Author : Daniel Michalik; Astronomi - Genomgår omorganisation; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; proper motions; parallaxes; positions; map of the Milky Way; joint solution; Gaia; detection of exo-planets; astrometry; catalogue combination; Tycho-Gaia Astrometric Solution; Hundred Thousand Proper Motion project; Fysicumarkivet A:2015:Michalik;

    Abstract : Astrometry aims at producing a three-dimensional map of positions and motions of stars and other celestial bodies in a consistent coordinate system covering the whole sky. This is best done from space, which provides a way of scanning the entire sky by a single instrument in a thermally stable environment. READ MORE

  4. 2. Functional properties of silicon nitride based materials for joint applications

    Author : Luimar N. Corrêa Filho; Cecilia Persson; Julia Shelton; Uppsala universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Silicon nitride; Coatings; Wear; Joint replacements; HiPIMS; Teknisk fysik med inriktning mot materialvetenskap; Engineering Science with specialization in Materials Science;

    Abstract : Total hip and total knee replacements are generally successful procedures for patients suffering with pain due to bone fracture or diseases affecting the joints. However, the materials that are commonly used still have limitations. In particular, corrosion products and wear debris may give rise to negative body reactions. READ MORE

  5. 3. The fixation of joint prostheses. Aspects on mechanics and biology

    Author : Ulrik Hansson; Lund Ortopedi; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; radiostereometry; histology; interface; micromotion; knee; joint replacement;

    Abstract : Abstract: In the interface, between implant and bone or between the cement and bone, there will develop some amount of fibrous tissue. The synovial fluid, the synovium, the cartilage and the subchondral bone from the non-replaced knee compartment that had been exposed to wear particles were studied by histological analyses. READ MORE

  6. 4. Joint Pose and Radio Channel Estimation

    Author : Anders Mannesson; Institutionen för reglerteknik; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : This thesis investigates the combination of pose and radio channel estimation. Pose is the knowledge of the position and orientation of a device whereas the radio channel describes the transmission medium between radio transmitters and receivers. READ MORE

  7. 5. Lined underground openings : rock mechanical effects of high internal pressure

    Author : Jibao He; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; rock mass classification; elasto-plastic solution; high internal pressure; lined caverns; gas storage; in-situ stress; rock mechanics; rock joint;

    Abstract : .... READ MORE