Search for dissertations about: "free moments"

Showing result 1 - 5 of 37 swedish dissertations containing the words free moments.

  2. 1. Contributions to High–Dimensional Analysis under Kolmogorov Condition

    Author : Jolanta Maria Pielaszkiewicz; Dietrich von Rosen; Martin Singul; Thomas Holgersson; Linköpings universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Eigenvalue distribution; free moments; free Poisson law; Marchenko-Pastur law; random matrices; spectral distribution; Wishart matrix; Mathematics; Matematik;

    Abstract : This thesis is about high–dimensional problems considered under the so{called Kolmogorov condition. Hence, we consider research questions related to random matrices with p rows (corresponding to the parameters) and n columns (corresponding to the sample size), where p > n, assuming that the ratio  converges when the number of parameters and the sample size increase. READ MORE

  4. 2. Structure-Magnetism Relations in Selected Iron-based Alloys : A New Base for Rare Earth Free Magnetic Materials

    Author : Johan Cedervall; Martin Sahlberg; Gunnar Svensson; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : Materials for energy applications are of great importance for a sustainable future society. Among these, stronger, lighter and more efficient magnetic materials will be able to aid mankind in many applications for energy conversion, for example generators for energy production, electric vehicles and magnetic refrigerators. READ MORE

  5. 3. Magnetic Materials for Cool Applications : Relations between Structure and Magnetism in Rare Earth Free Alloys

    Author : Johan Cedervall; Martin Sahlberg; Paul Henry; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Magnetism; Diffraction; X-ray scattering; Neutron Scattering; Permanent magnets; Magnetocalorics; Chemistry with specialization in Inorganic Chemistry; Kemi med inriktning mot oorganisk kemi;

    Abstract : New and more efficient magnetic materials for energy applications are a big necessity for sustainable future. Whether the application is energy conversion or refrigeration, materials based on sustainable elements should be used, which discards all rare earth elements. READ MORE

  6. 4. Sounding Expanded Affinities : A Polytemporal Approach to Reconceptualizing Egalitarian Social Relations

    Author : Andrea Ray; Konsthögskolan i Malmö; []
    Keywords : HUMANIORA; HUMANITIES; Sound art; Installation; Feminism; Polyamory; Free love; Expanded affinities; Queer theory; USA; Nineteenth century; Twenty-first century;

    Abstract : My doctoral submission, Sounding Expanded Affinities, examines how strides toward gender equality might be made, but it postulates that this is too difficult while marriage remains at the core of our patriarchal value system. This patriarchal system is one which oppresses women by manipulating subjects into its preferred roles often in subtle, chronic ways, using repetition and pairing as its tools. READ MORE

  7. 5. An Experimental Study of Reynolds Stress Closures in Shear Free and Weakly Sheared Turbulence

    Author : Dag Aronson; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; turbulence modelling; dissipation measurements; Reynolds stress closures; isotropic turbulence; anisotropic dissipation rate tensor; hot-wire anemometry; wall proximity effects; pressure strain rate correlations;

    Abstract : The objective of this thesis work is to obtain data enabling evaluation of closure hypotheses used in the Reynolds stress transport (RST) equations. Special attention has been devoted to studies of flow fields with shear free and weakly sheared turbulence. READ MORE