Search for dissertations about: "Peter Frisk"
Showing result 1 - 5 of 6 swedish dissertations containing the words Peter Frisk.
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1. Expressions of mercury-selenium interaction in vitro
Abstract : Interaction between mercury and selenium has previously been observed both in man and in animals. The aim of this work was to study expressions of interaction between mercury and selenium in human K-562 cells. READ MORE
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2. Evaluation, Generation, and Transformation of Driving Cycles
Abstract : Driving cycles are important components for evaluation and design of vehicles. They determine the focus of vehicle manufacturers, and indirectly they affect the environmental impact of vehicles since the vehicle control system is usually tuned to one or several driving cycles. READ MORE
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3. Evaluation, Transformation, and Extraction of Driving Cycles and Vehicle Operations
Abstract : A driving cycle is a representation of how vehicles are driven and is usually represented by a set of data points of vehicle speed versus time. Driving cycles have been used to evaluate vehicles for a long time. READ MORE
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4. Absorbed Dose Determination and Characteristics of Degraded Electron Beams: Application to Intraoperative Radiation Therapy
Abstract : The aim of this work was to quantify limitations of and uncertainties in commonly used dosimetric techniques for relative absorbed dose determination in degraded electron beams, such as those encountered in intraoperative radiation therapy (IORT) and small-electron-field radiotherapy. Three different detector types were investigated with regard to measurements of output factors and relative absorbed dose distributions: (1) a parallel-plate ionization chamber, (2) a p-type silicon diode detector and (3) a diamond detector. READ MORE
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5. MRI evaluation and image processing in gel dosimetry. A study of selected MRI properties and image processing in 3D gel dosimetry
Abstract : Gel dosimetry is a new dosimetry method applied in radiation therapy. Gel dosimeters consist of a radiation sensitive gel, which can integrate absorbed doses from several radiation sources or beams. The dose to the gel can be evaluated by magnetic resonance imaging (MRI), a procedure that is the focus of the present thesis. READ MORE