Sökning: "Thin Sets"

Visar resultat 1 - 5 av 32 avhandlingar innehållade orden Thin Sets.

  1. 1. Descriptive Set Theory and Applications

    Författare :Joao Pedro Paulos; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Sets of Uniqueness; Operator U-sets; Thin Sets; Descriptive Set Theory; ; Operator U0-sets; Point Spectrum; Reflexivity; Fourier Algebra; Jamison sequences; Harmonic Analysis;

    Sammanfattning : The systematic study of Polish spaces within the scope of Descriptive Set Theory furnishes the working mathematician with powerful techniques and illuminating insights. In this thesis, we start with a concise recapitulation of some classical aspects of Descriptive Set Theory which is followed by a succint review of topological groups, measures and some of their associated algebras. LÄS MER

  3. 2. Kleinian groups and thin sets at the boundary

    Författare :Torbjörn Lundh; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : .... LÄS MER

  4. 3. Nanostructuring and Age Hardening in TiSCN, ZrAlN, and TiAlN Thin Films

    Författare :Lars Johnson; Lars Hultman; Axel Flink; Linköpings universitet; []
    Nyckelord :thin films; age hardening; spinodal decomposition; TiSiCN; ZrAlN; TiAlN; Transmission electron microscopy; Atom probe tomography; NATURAL SCIENCES; NATURVETENSKAP;

    Sammanfattning : This thesis explores nanostructuring in TiSiCN, ZrAlN, and TiAlN thin films deposited by cathodic arc evaporation onto cemented carbide substrates, with intended applications for cutting tools. The three systems were found to exhibit age hardening upon annealing, by different mechanisms, into the superhard regime (≥30 GPa), as determined by a combination of electron microscopy, X-ray diffraction, atom probe tomography, erda, and nanoindentation tech- niques. LÄS MER

  5. 4. Theoretical modelling of thin film growth in the B-N system

    Författare :Björn Mårlid; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Chemistry; Boron nitride; boron; theoretical modelling; DFT; surface processes; surfaces; thin films; growth ALD; Kemi; Chemistry; Kemi; Inorganic Chemistry; oorganisk kemi;

    Sammanfattning : In vapour phase deposition, the knowledge and control of homogeneous and heterogeneous reactions in connection to precursor design may lead to the deposition of the desired material; structure or phase. This thesis is a document attempting to increase the knowledge of film growth in the B-N system. LÄS MER

  7. 5. Processing and characterization of thin film field effect gas sensors

    Författare :Anna Elisabeth Åbom; Linköpings universitet; []
    Nyckelord :MISFET; Field effect chemical gas sensors; long-term stability; sputtering; Pt; TiN;

    Sammanfattning : At Applied Physics, Linköping University, the main interest for sensor research has been the focused on MISFET (Metal-Insulator-Semiconductor Field-Effect Transistors) and related devices. The gas sensitivity of MISFET’s was first reported by Lundström et al. in 1975. Today a lot of work is being done in this field. LÄS MER