Sökning: "Johan Danielsson"

Hittade 5 avhandlingar innehållade orden Johan Danielsson.

  1. 1. Singular Fluxes in Ten and Eleven Dimensions : Sources, Singularities, Fluxes and Spam

    Författare :Johan Blåbäck; Ulf Danielsson; Niels Obers; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Theoretical Physics; Teoretisk fysik;

    Sammanfattning : The energy content of our present universe is dominated by the dark-energy, or vacuum energy, which provides accelerated cosmic expansion. Dark energy has a possible effective explanation through a positive cosmological constant. LÄS MER

  3. 2. Combining analytical and iterative reconstruction in helical cone-beam CT

    Författare :Johan Sunnegårdh; Gösta Granlund; Per-Erik Danielsson; Michel Defrise; Linköpings universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; cone-beam tomography; forward projection; image reconstruction; iterative reconstruction; ordered subsets; regularization; WFBP; Signal processing; Signalbehandling;

    Sammanfattning : Contemporary algorithms employed for reconstruction of 3D volumes from helical cone beam projections are so called non-exact algorithms. This means that the reconstructed volumes contain artifacts irrespective of the detector resolution and number of projection angles employed in the process. LÄS MER

  4. 3. Constructive cooperative coevolution for optimising interacting production stations

    Författare :Emile Glorieux; Bengt Lennartson; Fredrik Danielsson; Bo Svensson; Johan Ölvander; Högskolan Väst; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Manufacturing automation; metaheuristic optimasion algorithm; optimised production technology; algorithm design and analysis; interacting production stations; sheet metal press lines; Manufacturing and materials engineering; Produktions- och materialteknik;

    Sammanfattning : Engineering problems have characteristics such as a large number of variables, non-linear, computationally expensive, complex and black-box (i.e. unknown internal structure). These characteristics prompt difficulties for existing optimisation techniques. LÄS MER

  5. 4. Analysis of Acrylamide and Anthocyanins in Foods : Extraction Optimization for Challenging Analytes

    Författare :Erik V. Petersson; Charlotta Turner; Johan Rosén; Rolf Danielsson; Marja-Liisa Riekkola; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Analysis; Extraction; Optimization; Acrylamide; Anthocyanins; Foods; Challenges; Analytical chemistry; Analytisk kemi; Analytical Chemistry; Analytisk kemi;

    Sammanfattning : In this thesis, the main concern has been to improve the reliability of different parts of the analytical workflow (Paper I, II, IV &V). Additionally, one of the resulting optimized methods was used in a real application (Paper III). Paper I-II concerned the extraction of acrylamide (AA) from foods. LÄS MER

  7. 5. Den litterära utopin och dystopin i Sverige 1734-1940

    Författare :Sarah Ljungquist; Umeå universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; Utopia; dystopia; feminism; criticism; Quiding; Lundin; Boye; genre; future; science fiction; secularisation; anti-totalitarianism; Kallocain; Oxygen och Aromasia; power structures; Utopier i litteraturen; Dystopier i litteraturen; Utopier-- Sverige -- 1700-talet -- 1800-talet -- 1900-talet; Literature;

    Sammanfattning : The aim of this thesis is to map the occurrence of the literary utopian genre in Sweden and to examine its history and forms.In the first chapter, the concepts of utopia and dystopia are defined. The literary utopia as a genre is understood as including the literary dystopia. LÄS MER