Sökning: "tilt angle"

Visar resultat 6 - 10 av 35 avhandlingar innehållade orden tilt angle.

  1. 6. Grain Boundary Structure of YBa2Cu3O7-δ High Tc Superconductors

    Författare :José A Alarco; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : The microstructures of YBa2Cu3O7-.delta. (YBCO) high Tc superconducting materials have been studied using analytical electron microscopy. The effects of processing parameters on the interfacial microstructures have been investigated in both bulk materials and thin films. LÄS MER

  3. 7. Structure determination of beam sensitive crystals by rotation electron diffraction : the impact of sample cooling

    Författare :Fei Peng; Junliang Sun; Xiaodong Zou; Dag Nores; Ute Kolb; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; electron crystallography; rotation electron diffraction; structure determination; cooling; Inorganic Chemistry; oorganisk kemi;

    Sammanfattning : Electron crystallography is complementary to X-ray crystallography. Single crystal X-ray diffraction requires the size of a crystal to be larger than about 5 × 5 × 5 μm3 while a TEM allows a million times smaller crystals being studied. This advantage of electron crystallography has been used to solve new structures of small crystals. LÄS MER

  4. 8. On the Optics and Surface Physics of Liquid Crystals

    Författare :Pontus Jägemalm; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; deformed helix; anchoring; short-pitch; SiO; homogeneous models; two-fold degenerate alignment; Berreman; bistable alignment; optical activity;

    Sammanfattning : Good knowledge about optics and surface physics of liquid crystals is indispensable when utilising them for applications, such as liquid crystal displays (LCDs). However, they are also two central subjects in fundamental research on liquid crystals. LÄS MER

  5. 9. Guiding of highly charged ions through insulating nanocapillaries

    Författare :Hongqiang Zhang; Reinhold Schuch; Amine Cassimi; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Physics; Fysik; Atomic physics; Atomfysik; fysik; Physics;

    Sammanfattning : This thesis contains experimental work on guiding of highly charged ions through insulating nanocapillaries. We have studied the time evolution of angular distributions of transmitted ions under well defined initial conditions: already charged, as well as fully discharged nanocapillaries, by using a two-dimensional position sensitive Micro Channel Plate detector with a data acquisition system working in event mode. LÄS MER

  7. 10. Hip range of motion and the prevalence of cam morphology in young athletes - clinical and radiological studies

    Författare :Anna Swärd Aminoff; Göteborgs universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; tillväxtstörning höftled; unga idrottare; överbelastningsskador; kvinnliga idrottare;

    Sammanfattning : Abstract Hip and groin pain is common among athletes and the active population, and one important cause for this is femoroacetabular impingement syndrome (FAIS). To meet the diagnosis of FAIS, a combination of radiological findings (cam and/or pincer morphology), hip pain and clinical findings (reduced hip joint range of motion (ROM) and/or positive anterior impingement test (FADIR)) needs to be present. LÄS MER