Sökning: "Teknisk fysik"
Visar resultat 1 - 5 av 1294 avhandlingar innehållade orden Teknisk fysik.
1. On string integrability A journey through the two-dimensional hidden symmetries in the AdS/CFT dualities
Detta är en avhandling från Uppsala : Acta Universitatis UpsaliensisSammanfattning : One of the main topics in the modern String Theory are the conjectured string/gauge (AdS/CFT) dualities. Proving such conjectures is extremely difficult since the gauge and string theory perturbative regimes do not overlap. In this perspective, the discovery of infinitely many conserved charges, i.e. LÄS MER
2. Development of wavelength modulation diode laser absorption spectrometry in transversely heated graphite atomisers for sensitive trace element analysis
Detta är en avhandling från Umeå : FysikSammanfattning : The Wavelength Modulation Diode Laser Absorption Spectrometry technique (WM-DLAS) is a laser-based spectroscopic technique for sensitive detection of atoms and molecules that so far mostly has been used for environmental monitor-ing. This thesis is concerned with the development of this technique for sensitive trace element analysis. LÄS MER
3. Nonlinear Dust Particle Dynamics and Collective Effects in Complex Plasmas
Detta är en avhandling från Umeå : FysikSammanfattning : Theoretical studies of dusty plasmas have been performed by focusing attention principally on collective phenomena and on grain motion. This thesis consists of a collection of seven published papers that explore both the collective behavior of a complex plasma system as well as the dynamics of grains in plasmas. LÄS MER
4. Characteristic properties of two-dimensional superconductors close to the phase transition in zero magnetic field
Detta är en avhandling från Umeå : FysikSammanfattning : The main focus of this thesis lies on the critical properties of twodimensional (2D) superconductors in zero magnetic field. Simulations based on variants of the 2D XY model are shown to give characteristic features close to the phase transition which agree qualitatively with experimental data. LÄS MER
5. Transmission Electron Microscopy for Characterization of Structures, Interfaces and Magnetic Moments in Magnetic Thin Films and Multilayers
Detta är en avhandling från Uppsala : Acta Universitatis UpsaliensisSammanfattning : Structural characterization is essential for the understanding of the magnetic properties of thin films and multilayers. In this thesis, both crystalline and amorphous thin films and multilayers were analyzed utilizing transmission electron microscopy (TEM). LÄS MER
