Search for dissertations about: "Source localization"

Showing result 16 - 20 of 82 swedish dissertations containing the words Source localization.

  2. 16. Hydroaccoustic matched field methods for modal analysis and source localization

    Author : Elias Parastates; KTH; []
    Keywords : ;

    Abstract : .... READ MORE

  4. 17. Chromatin Dynamics in the Fission Yeast, Schizosaccharomyces pombe

    Author : Carolina Kristell; Pernilla Bjerling; Per Sunnerhagen; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Chromatin; Gene induction; Silencing; Subnuclear localization; Stress; Molecular biology; Molekylärbiologi; Molekylär genetik; Molecular Genetics;

    Abstract : In the eukaryotic cell nucleus, spatial organization and dynamics of the genome is important in the regulation of gene expression. This thesis describes the use of the fission yeast, Schizosaccharomyces pombe, to study chromatin regulation and dynamics. We used nitrogen starvation to induce transcription of genes in fission yeast cells. READ MORE

  5. 18. Intestinal IgA synthesis: Localization and requirements for IgA class switch recombination

    Author : Peter Bergqvist; Göteborgs universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; IgA; Intestine; Gut associated lymphoid tissue; class switch recombination; CD40; germ free;

    Abstract : Production of IgA at mucosal surfaces is one of the most striking features of the mucosal immune system. Despite that IgA was first discovered in the 1950’s and secretory IgA described in gut secretions and breast milk in the mid 1960’s we still have limited information about the sites and exact requirements for IgA class switch recombination. READ MORE

  6. 19. Sparse Modeling of Grouped Line Spectra

    Author : Ted Kronvall; Statistical Signal Processing Group; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; line spectra; parameter estimation; convex optimization; group-sparsity; block-sparsity; dictionary learning; ADMM; adaptive penalty; total variation; multi-pitch estimation; chroma; audio processing; TDOA; near-field localization; amplitude modulation;

    Abstract : This licentiate thesis focuses on clustered parametric models for estimation of line spectra, when the spectral content of a signal source is assumed to exhibit some form of grouping. Different from previous parametric approaches, which generally require explicit knowledge of the model orders, this thesis exploits sparse modeling, where the orders are implicitly chosen. READ MORE

  7. 20. Digital Image Analysis of Cells : Applications in 2D, 3D and Time

    Author : Amalka Pinidiyaarachchi; Carolina Wählby; Ewert Bengtsson; Arvid Lundervold; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Digital image analysis; microscopy; fluorescent staining; watershed segmentation; sub-cellular localization; point-like signals; wavelets; cell confluence; cytology; color spaces.; Image analysis; Bildanalys;

    Abstract : Light microscopes are essential research tools in biology and medicine. Cell and tissue staining methods have improved immensely over the years and microscopes are now equipped with digital image acquisition capabilities. The image data produced require development of specialized analysis methods. READ MORE