Sökning: "pair interactions"

Visar resultat 1 - 5 av 117 avhandlingar innehållade orden pair interactions.

  1. 1. Intense laser-plasma interactions

    Författare :Joel Magnusson; Chalmers University of Technology; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; radiation reaction; radiation generation; particle-in-cell; plasma; pair production cascades; ion acceleration; laser;

    Sammanfattning : In the interaction of ultra-intense laser fields with matter, the target is rapidly ionized and a plasma is formed. The ability of a plasma to sustain acceleration gradients, orders of magnitude larger than achievable with conventional accelerators, has led to a great interest in laser-driven plasma-based particle and radiation sources, with applications in materials science, biology and medicine. LÄS MER

  2. 2. Interactions and phase stability in Ni-rich binary alloys

    Författare :Shuang He; Andrei Ruban; Biplab Sanyal; KTH; []
    Nyckelord :ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; Ni-based superalloys; ab initio calculations; atomic ordering; effective interactions.; Materials Science and Engineering; Teknisk materialvetenskap; Materials Science and Engineering; Teknisk materialvetenskap;

    Sammanfattning : Ni-based superalloys are the important materials for gas turbines in advancedaeroplane engines . The addition of refractory elements to these superalloys,such as rhenium and tungsten, can significantly improve the hightemperatureperformance by so-called solid-solution hardening. LÄS MER

  3. 3. Thermodynamics of protein-DNA interactions

    Författare :Thomas Lundbäck; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; DNA-protein interactions; molecular recognition; thermodynamics; specificity.dehydration; salt dependence.;

    Sammanfattning : This thesis treats the molecular recognition between DNA-binding proteins and DNA and the way these interactions are affected by the surrounding water solution and dissolved solutes. The work involves studies on the thermodynamics of sequence specific DNA-binding of the human glucocorticoid receptor DNA-binding domain and the nonsequence specific DNA- binding of Sso7d from the archaeon Sulfolobus solfataricus. LÄS MER

  4. 4. Precipitation of Kraft Lignin from Aqueous Solutions

    Författare :Tor Sewring; Chalmers University of Technology; []
    Nyckelord :NATURVETENSKAP; TEKNIK OCH TEKNOLOGIER; NATURAL SCIENCES; ENGINEERING AND TECHNOLOGY; modified Poisson-Boltzmann model; particle size distribution; pair interactions; kraft lignin; acid precipitation; in situ measurements;

    Sammanfattning : One way of improving the materials yield of a kraft paper pulp process, and simultaneously providing the industry with aromatic macromolecular structures, is to extract lignin from the black liquor. This can be done by lowering the pH of the black liquor, which will result in the precipitation of the lignin. LÄS MER

  5. 5. Interactions, initial states, and low-dimensional semiconductors

    Författare :Peter Jaksch; Stephanie M. Reimann-Wacker; Linköpings universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; Q!uantum mechanical interactions; quantum point contact QPC ; quantum wires; exchange-correlation energy; Reilly model; quantum algorithms; Physics; Fysik;

    Sammanfattning : This thesis is concerned with different aspects of quantum mechanical interactions. The first part of the thesis focuses on their effects in low-dimensional semiconductors; the second part on one of their applications: quantum algorithms, which utilize superpositions created from quantum mechanical interactions. LÄS MER