Sökning: "unstable equilibrium"

Visar resultat 1 - 5 av 36 avhandlingar innehållade orden unstable equilibrium.

  1. 1. Generalized Pólya Urns via Stochastic Approximation

    Författare :Henrik Renlund; Sven Erick Alm; Svante Janson; Lars Holst; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; stochastic approximation; unstable equilibrium; stable equilibrium; touchpoint; generalized pólya urns; MATHEMATICS; MATEMATIK; Mathematics; Matematik;

    Sammanfattning : .... LÄS MER

  3. 2. Lipoprotein lipase-unstable on purpose?

    Författare :Liyan Zhang; Gunilla Olivecrona; Cecilia Holm; Umeå universitet; []
    Nyckelord :Biochemistry; Lipoprotein lipase; Apolipoprotein CII; dimerization; monomerization; Molecular chaperones; Biokemi;

    Sammanfattning : Lipoprotein lipase (LPL) is a central enzyme in lipid metabolism. It is a non-covalent, homodimeric and N-glycosylated protein, which is regulated in a tissue-specific manner and is dependent on an activator protein, apolipoprotein CII. Dissociation of active LPL dimers to monomers leads to loss of activity. LÄS MER

  4. 3. Equilibrium aspects of Cr-alloyed cemented carbides

    Författare :Bartek Kaplan; Malin Selleby; Armando F. Guillermet; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Teknisk materialvetenskap; Materials Science and Engineering;

    Sammanfattning : In view of the extensive use of Cr as a grain growth inhibitor in WC-Co cemented carbides this thesis comprises a combined experimental and ab initio study of a number of critical issues pertaining to phase equilibria of the subsystems to the W-Co-Cr-C system.To be able to predict which of the stable Cr-carbides forms above the solubility limits of Cr and C in the fcc phase the respective solubility of Co in Cr23C6, Cr7C3 and Cr3C2 are investigated experimentally. LÄS MER

  5. 4. Developments in the theory of the Prigogine-Herman kinetic equation of vehicular traffic

    Författare :Alexandros Sopasakis; Partiella differentialekvationer; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Chapman-Enskog expansion; Traffic; Prigogine-Herman; Kinetic equation; Unstable flow;

    Sammanfattning : The nonlinear kinetic equation of Prigogine and Herman is examined in regards to existence and uniqueness of solutions. The solution exists and is unique in the Banach space of bounded continuous functions over a particular subspace Ω. LÄS MER

  7. 5. Investigation of [N-X-N]+ and [N-C-N]+ complexes in solution : Exploring Geometry, Stability and Symmetry

    Författare :Alavi Karim; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; three center four electron; halonium; carbenium; carbonium; pentavalent; symmetry; NMR; variable temperature; counterion; isotopic perturbation of equilibrium;

    Sammanfattning : Halogen bonding is a weak interaction. In this thesis the three center four electron halogen bond, [N−X−N]+, has been studied. The lighter halogens form highly unstable halonium ions that are reactive towards nucleophiles and their complexes were therefore investigated at low temperatures. LÄS MER