Search for dissertations about: "coupling from the past"

Showing result 1 - 5 of 28 swedish dissertations containing the words coupling from the past.

  2. 1. Ion escape from Mars : measurements in the present to understand the past

    Author : Robin Ramstad; Stas Barabash; Yoshifumi Futaana; David Brain; Umeå universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Mars; escape; solar wind; evolution; CME; coupling; plasma; atmosphere; Space Physics; rymdfysik;

    Abstract : Present-day Mars is a cold and dry planet with a thin CO2-dominated atmosphere comprising only a few ­­­mbar pressure at low altitudes. However, the Martian surface is marked with valley networks, hydrated mineral clays, carbonates and the remains of deltas and meandering rivers, i.e. READ MORE

  4. 2. Correlation Functions in Integrable Theories : From weak to strong coupling

    Author : Raul Pereira; Joseph Minahan; Sergey Frolov; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Superstring theory; AdS CFT correspondence; Integrable field theories; Hexagon form factors; Theoretical Physics; Teoretisk fysik;

    Abstract : The discovery of integrability in planar N=4 super Yang-Mills and ABJM has enabled a precise study of AdS/CFT. In the past decade integrability has been successfully applied to the spectrum of anomalous dimensions, which can now be obtained at any value of the coupling. READ MORE

  5. 3. Studies on Design Automation of Analog Circuits : the Design Flow

    Author : Emil Hjalmarson; Svensson Mattiasson; Linköpings universitet; []
    Keywords : TECHNOLOGY; TEKNIKVETENSKAP;

    Abstract : During the past few years the concept of system-on-chip (SoC) have become an important segment in the market of integrated circuits. This recent development have increased not only the number of devices and the functionality that can be put on a chip, but the chips now includes both digital and analog circuits. READ MORE

  6. 4. On perfect simulation and EM estimation

    Author : Kajsa Larson; Sara Sjöstedt de Luna; Mats Rudemo; Umeå universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Perfect simulation; coupling from the past; Markov chain Monte Carlo; point process; Widom-Rowlinson model; EM algorithm; dispersal distribution; fecundity; first-passage percolation; Mathematical statistics; Matematisk statistik; Mathematical Statistics; matematisk statistik;

    Abstract : Perfect simulation  and the EM algorithm are the main topics in this thesis. In paper I, we present coupling from the past (CFTP) algorithms that generate perfectly distributed samples from the multi-type Widom--Rowlin-son (W--R) model and some generalizations of it. READ MORE

  7. 5. Iron or Copper? - Method Development and Mechanistic Studies on Cross-Coupling Reactions

    Author : Per-Fredrik Larsson; Göteborgs universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Iron; Copper; Transition metal; Cross-coupling; Reaction mechanism; Kinetic investigation; Hammett study; Sustainable catalysis; Trace-metal; Mass-transfer; Ligand development; Ligand scope;

    Abstract : The area of catalysis has had an immeasurable impact on modern society. This has been acknowledged through several Nobel prizes during the 20th century ranging from Haber (1918) for the synthesis of ammonia to Richard F. Heck, Ei-ichi Negishi, and Akira Suzuki (2010) for palladium-catalyzed cross-coupling reactions. READ MORE