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Visar resultat 1 - 5 av 28 avhandlingar som matchar ovanstående sökkriterier.

  1. 1. Tissue reactions to biomaterials

    Författare :Agneta Rosengren; Institutionen för experimentell medicinsk vetenskap; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; cytochemistry; Histology; Macrophages; Cryosubstitution; Proteins; Immunohistochemistry; Titanium; Implants; PTFE; histochemistry; tissue culture; Histologi; cytokemi; histokemi; vävnadskultur;

    Sammanfattning : The biological response to different implanted biomaterials vary. The relative importance of factors in the material and host for this variation are at present incompletely known. LÄS MER

  3. 2. Interfacial kinetic ski friction

    Författare :Leonid Kuzmin; Mats Tinnsten; Jonas Danvid; Mikael Jonsson; Roland Larsson; Mittuniversitetet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; ski glide; ski base; ski wax; hydrophobicity; UHMWPE; PTFE; topography; Engineering mechanics; Teknisk mekanik;

    Sammanfattning : It is no doubt, that the ski glide over the snow is a very complicated object of research. However, ski glide is just a one area of many other areas of human knowledge. As a rule, the scientists and practitioners, who work in these areas, operate with some publicly expressed more or less solid hypotheses. LÄS MER

  4. 3. Tribological Aspects of Pneumatic Clutch Actuators

    Författare :Frida Riddar; Åsa Kassman Rudolphi; Roland Larsson; Uppsala universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Wear; friction; PTFE transfer; anodised aluminium; NBR rubber lip seal; silicone grease; casting; extrusion; Teknisk fysik med inriktning mot tribomaterial; Engineering Science with specialization in Tribo Materials;

    Sammanfattning : A clutch actuator is used in a vehicle to transmit movement and force from the clutch pedal to the release bearing of the clutch. A pneumatic clutch actuator consists of an anodised aluminium cylinder, inside of which a piston, with a rubber lip seal and a PTFE guiding ring, slides. The system is lubricated with silicone grease before assembly. LÄS MER

  5. 4. Tribology of carbon fiber reinforced PTFE composites in dry gas environments

    Författare :Pontus Johansson; Pär Marklund; Marcus Björling; Yijun Shi; Stephen Kukureka; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Machine Elements; Maskinelement;

    Sammanfattning : With hydrogen being one of the key pillars of decarbonization, the reliability and efficiency of hydrogen applications become increasingly important. In applications such as oil-free reciprocating hydrogen compressors and Stirling engines, the self-lubricating pistonrings and other dynamic seals are critical components in terms of efficiency, service life and proper functioning. LÄS MER

  7. 5. Tribology of Carbon Fiber Reinforced PTFE Composites in Trace Moisture Environment

    Författare :Pontus Johansson; Pär Marklund; Jan Ukonsaari; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Machine Elements; Maskinelement;

    Sammanfattning : .... LÄS MER