Search for dissertations about: "exchange parameter"

Showing result 1 - 5 of 80 swedish dissertations containing the words exchange parameter.

  2. 1. Time Varying Parameters in Exchange Rate Models

    Author : Richard Henricsson; Nationalekonomiska institutionen; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; economic systems; economic theory; econometrics; Economics; stochastich volatility.; purchasing power parity; GARCH; exchange rates; Stationarity; economic policy; Nationalekonomi; ekonometri; ekonomisk teori; ekonomiska system; ekonomisk politik;

    Abstract : This thesis consists of five papers on different aspects of parametervariation in some common exchange rate models.The first paper investigates the stability in the real exchange rate, witch is equivalent to purchasing power parity (PPP). READ MORE

  4. 2. Electronic structure and exchange interactions from ab initio theory : New perspectives and implementations

    Author : Ramon Cardias Alves de Almeida; Olle Eriksson; Anders Bergman; Attila Szilva; R. B. Muniz; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; ab initio; exchange interactions; non-collinear magnetism; Physics with spec. in Atomic; Molecular and Condensed Matter Physics; Fysik med inriktning mot atom- molekyl- och kondenserande materiens fysik;

    Abstract : In this thesis, the magnetic properties of several materials were investigated using first principle calculations. The ab initio method named real space linear muffin-tin orbitals atomic sphere approximation (RS-LMTO-ASA) was used to calculate the electronic structure and magnetic properties of bulk systems, surface and nanostructures adsorbed on surfaces. READ MORE

  5. 3. Influence of Global Composition and Local Environment on the Spectroscopic and Magnetic Properties of Metallic Alloys

    Author : Weine Olovsson; Igor A. Abrikosov; G. Malcolm Stocks; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Physics; core level shift; random alloy; first principles simulations; density functional theory; auger kinetic energy; Invar alloys; exchange parameter; classical Heisenberg Hamiltonian; complete screening; transition state; disorder broadening; Fysik; Physics; Fysik;

    Abstract : Theoretical investigations of spectroscopic and magnetic properties of metallic systems in the bulk, as well as in nanostructured materials, have been performed within the density functional theory. The major part of the present work studies the differences between binding energies of electrons tightly bound to the atoms, the so-called core electrons (in contrast with the valence electrons), that is, core-level binding energy shift (CLS). READ MORE

  6. 4. Biophysical modelling in diffusion MRI: The role of tissue microstructure and water exchange

    Author : Markus Nilsson; Lund Medicinsk strålningsfysik; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Diffusion; MRI; tissue microstructure; water exchange; Monte Carlo simulations; white matter;

    Abstract : Diffusion MRI is widely used to study brain structure in vivo. While this technique is often applied to investigations of brain connectivity, it can also be used to infer specific information about the tissue microstructure; for example, to estimate the axon diameter. READ MORE

  7. 5. Implementation and Analysis of Air-Sea Exchange Processes in Atmosphere and Ocean Modelling

    Author : Björn Carlsson; Anna Rutgersson; Ann-Sofi Smedman; Öyvind Saetra; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Sensible heat flux; Latent heat flux; Momentum flux; Wind stress; Marine boundary layer; Air–Sea interaction; Swell; Climate model; Ocean model; Roughness parameter; Drag coefficient; Wave breaking; Meteorology; Meteorologi;

    Abstract : To understand and to predict the weather and climate, numerical models are important tools and it is crucial that the controlling processes are described correctly. Since 70% of the global surface is covered with water the description how the ocean and atmosphere communicates has a considerable impact. READ MORE