Sökning: "APEX"

Visar resultat 6 - 10 av 76 avhandlingar innehållade ordet APEX.

  1. 6. Life History Strategies in Linnaea borealis

    Författare :Mikael Niva; Brita M. Svensson; P. Staffan Karlsson; Ørjan Totland; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Biology; Linnaea borealis; apex removal; apical dominance; clonal plant; hand pollination; matrix modelling; plant foraging; resorption efficiency; resorption proficiency; resource heterogeneity; shoot dynamics; Biologi; Biology; Biologi; ekologisk botanik; Ecological Botany;

    Sammanfattning : About 70% of the plant species in the temperate zone are characterised by clonal growth, clonal species are also in majority in the Arctic and Subarctic where they affect the structure and composition of the vegetation. It is therefore of great importance to increase our knowledge about clonal plants and their growth and life histories. LÄS MER

  3. 7. Cochlear mechanics : design and application of superresolution techniques in the cochlear apex

    Författare :Stefan Jacob; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Hearing is one of the five traditional senses. Next to vision it is probably the most important for man and plays a crucial role in day-to-day communication. However, hearing is extremely challenged by modern life style, due to increasing noise exposure and aging societies. Ten percent of the world population is estimated to be hearing impaired. LÄS MER

  4. 8. Impact of Metallic Projectiles on a Ceramic Target Surface : Transition Between Interface Defeat and Penetration

    Författare :René Renström; Bengt Lundberg; Patrik Lundberg; Nils-Gunnar Ohlson; Uppsala universitet; []
    Nyckelord :Engineering physics; Projectile; Cylindrical; Conical; Yield strength; Compressibility; Perfect flow; Self-similar flow; Interface defeat; Dwell; Teknisk fysik; Teknisk fysik med inriktning mot hållfasthetslära; Engineering Science with specialization in Solid Mechanics;

    Sammanfattning : The purpose of this thesis is to gain understanding of the load on flat target surfaces produced by projectile impact. Models are proposed from which upper and lower bounds can be derived for the transition be-tween interface defeat and normal penetration. LÄS MER

  5. 9. Accuracy of virtually planned and CAD/CAM-guided dental implant surgery

    Författare :Andreas Pettersson; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :dental implant;

    Sammanfattning : The treatment with dental implants was introduced in the 1960s as an aid for patients who were missing teeth. Recently CAD/CAM guided surgical concepts have been launched on the market as a solution for treating single, partial or completely edentulous patients with dental implants. LÄS MER

  7. 10. Controlled growth of hexagonal GaN pyramids and InGaN QDs

    Författare :Anders Lundskog; Erik Janzén; Urban Forsberg; Per-Olof Holtz; Lars-Erik Wernersson; Linköpings universitet; []
    Nyckelord :;

    Sammanfattning : Gallium-nitride (GaN) and its related alloys are direct band gap semiconductors, with a wide variety of applications. The white light emitting diode (LED) is of particular importance as it is expected to replace energy inefficient light bulb and hazardous incandescent lamps used today. LÄS MER