Search for dissertations about: "Naturvetenskap"
Showing result 11 - 15 of 25534 swedish dissertations containing the word Naturvetenskap.
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11. The Importance of Dosimetry and Radiobiology in Nuclear Medicine : Quantitative methods and modelling
Abstract : Nuclear medicine uses radioactive pharmaceuticals for diagnostic or therapeutic purposes. The ionizing radiation emitted from the radiopharmaceutical is partially absorbed within the patient's body and internal dosimetry is the method to estimate the absorbed dose to a tumour or risk organ. READ MORE
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12. Analysis of Deformation of Gas Diffusion Layers and the Impact on Performance of PEM Fuel Cells
Abstract : Proton exchange membrane (PEM) fuel cells have been promoted due to significant breakthroughs in various aspects and increasing public interests. The porous features of the gas diffusion layer (GDL) and the necessary assembly processes generate localized pressure forces on the channel/shoulder structure of the bi-polar plates (BPP). READ MORE
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13. Resource efficient products in a circular economy – The case of consumables. From environmental and resource assessment to design guidelines
Abstract : The circular economy (CE) is a concept to challenge the unsustainable production, consumption, and waste management of products, through the recirculation of resources and products through various means while reducing environmental impact. Within this concept, many measures are recommended for reducing environmental impact and resource use. READ MORE
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14. Rapid analysis of actinide isotopes using quadrupole ICP-MS for emergency preparedness and environmental monitoring
Abstract : Transuranium elements in the environment are mainly derived from nuclear weapons testing and the nuclear fuel cycle. Of growing concern are illicit nuclear trafficking and the threat of terror acts. READ MORE
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15. Anadromous Pike in the Baltic Sea
Abstract : The pike (Esox lucius) is a major predator and top-down regulator in the Baltic Sea where it exists in two sympatric forms. One spawn in streams and rivers and the other one spawn in the sea. During the last decades, the habitats for both of these forms have developed in a negative way. READ MORE