Sökning: "fragmentation mechanism"

Visar resultat 11 - 15 av 65 avhandlingar innehållade orden fragmentation mechanism.

  1. 11. Probing the Drip-Lines through Momentum Distributions

    Författare :Martin Smedberg; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; momentum distributions; drip-line; diffraction; 17C; 119C; core shadowing; 6He; neutron stripping; radioactive beams; break-up; intermediate resonance; neutron halo; 8He; 8B; absorption; reaction mechanism;

    Sammanfattning : About a decade ago it was found that nuclei in the vicinity of the neutron drip-line under certain circumstances develop very extended valence neutron distributions, a phenomenon today known as halo states. The recent development of radioactive nuclear beams has provided us with a perfect tool for investigating these particular nuclei. LÄS MER

  3. 12. Mechanism of action of autosomal recessive juvenile parkinsonism gene mutations

    Författare :Anna Sandebring; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Parkinson Disease (PD) is the most common neurodegenerative movement disorder. Although PD is a largely sporadic disease, several genes has been linked to familial forms of PD. This thesis focuses on the mechanism of function of the Autosomal Recessively Juvenile Parkinsonism (AR-JP) associated genes parkin, PTEN induced kinase 1 (PINK1) and DJ-1. LÄS MER

  4. 13. Simulations of Biomolecular Fragmentation and Diffraction with Ultrafast X-ray Lasers

    Författare :Christofer Östlin; Carl Caleman; Nicusor Timneanu; Helmut Grubmüller; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; X-ray free-electron laser; X-ray imaging; Single particle imaging; Computer simulation; Radiation damage; Molecular dynamics; Diffraction theory; Coulomb explosion; Sample heterogeneity; Diffractive noise; XFEL; SPI; Physics with specialization in Biophysics; Fysik med inriktning mot biofysik;

    Sammanfattning : Studies of biomolecules have recently seen substantial developments. New X-ray lasers allow for high-resolution imaging of protein crystals too small for conventional X-ray crystallography. Even structures of single particles have been determined at lower resolutions with these new sources. LÄS MER

  5. 14. On the molecular mechanism of LHCII proteolysis during photoacclimation of photosystem II

    Författare :Dan-Hui Yang; Peter Horton; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; biokemi; Biochemistry;

    Sammanfattning : Higher plants and green algae have a remarkable ability to respond to fluctuations in the light intensity. Plants adapted to low or high light regimes possess larger or smaller light-harvesting antennae respectively. LÄS MER

  7. 15. On Fuel Coolant Interactions and Debris Coolability in Light Water Reactors

    Författare :Sachin Thakre; Weimin Ma; Florian Fichot; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; severe accident; fuel-coolant interactions; melt jet fragmentation; steam explosion; debris bed coolability; uncertainty analysis; Energiteknik; Energy Technology;

    Sammanfattning : During the case of a hypothetical severe accident in a light water reactor, core damage may occur and molten fuel may interact with water resulting in explosive interactions. A Fuel-Coolant Interactions (FCI) consists of many complex phenomena whose characteristics determine the energetics of the interactions. LÄS MER