Search for dissertations about: "Gustav Johansson"
Showing result 1 - 5 of 6 swedish dissertations containing the words Gustav Johansson.
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1. Beamforming and timing design issues for a large aperture array radar applied to atmospheric research
Abstract : This thesis describes the work done by the author during the development of a Large Aperture Array Radar (LAAR) receiver for the EISCAT 3D project. The main focus was on digital beamforming of a bandpass-sampled wide band signal in base-band and the development of a picosecond-level distributed timing system applicable over hundreds of meters. READ MORE
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2. Computational modeling of magnetic materials and alloys
Abstract : Magnetic materials play an important part in modern technology, appearing practically everywhere. Nonetheless, there is a need to discover new magnetic materials that can make devices faster, use less energy, and store more data. For this reason, computational modeling is an important tool. READ MORE
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3. Ultrasensitive DNA sequencing using liquid biopsies enables precision medicine
Abstract : Liquid biopsies are minimally invasive and allow repetitive sampling of body fluids. Analysis of cell-free tumor DNA in liquid biopsies can be used as a biomarker for cancer. However, in most clinically relevant liquid biopsies, cell-free DNA is present at low concentrations, contains minute tumor allele frequencies, and is highly fragmented. READ MORE
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4. Factors Affecting the Distribution of Rocky-Shore Macroalgae on the Swedish Coast : Morphological, Physiological, Reproductive and Genetic Aspects
Abstract : The aim of this thesis was to examine factors affecting the distribution of macroalgal species both vertically (depth zonation) and geographically along the Baltic Sea salinity gradient. Interactions between the physical environment and basic biological traits of the algae are emphasised. READ MORE
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5. Model predictions of turbulent gas-particle shear flows
Abstract : A turbulent two-phase flow model using kinetic theory of granularflows for the particle phase is developed and implmented in afinite element code. The model can be used for engineeringapplications. However, in this thesis it is used to investigateturbulent gas-particle flows through numerical simulations. READ MORE