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Showing result 1 - 5 of 158 swedish dissertations matching the above criteria.

2. 1. Fluoride in surface water and groundwater in southeast Sweden : sources, controls and risk aspects

   Author : Tobias Berger; Mats E. Åström; Pasi Peltola; Henrik Drake; Olle Selinus; Linnéuniversitetet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; fluorine; fluoride; water-rock interaction; granite; crystalline bedrock; surface water; groundwater; Götemar; drinking water quality; aluminium; speciation; fluorosis; PBA; Miljövetenskap; Environmental Science;

   Abstract : The aim of this thesis is to determine the sources, controls and risk aspects of fluoride in surface water and groundwater in a region of southeastern Sweden where the fluorine-rich 1.45 Ga circular Götemar granite (5 km in diameter) crops out in the surrounding 1.8 Ga granites and quartz monzodiorites (TIB rocks). READ MORE

4. 2. Experiments with sand slurries pumped in 0.1 to 0.5 m diameter pipeline loops

   Author : Lee Whitlock; Luleå tekniska universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Vattenteknik; Water Resources Engineering;

   Abstract : The overall objective was to investigate the effectiveness of using high solids concentrations when transporting sand slurries in pipelines with centrifugal pumps. In detail, the aims are to present large-scale experimental pipe friction loss results and how head, efficiency and net suction head performance are influenced by the solid particles in large pumps and to compare friction loss data with a design model. READ MORE

5. 3. Arctic Climate and Water Change : Information Relevance for Assessment and Adaptation

   Author : Arvid Bring; Georgia Destouni; Richard Lammers; Stockholms universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Hydrology; Monitoring; Arctic; Climate Change; Adaptatation; Physical Geography; naturgeografi;

   Abstract : The Arctic is subject to growing economic and political interest. Meanwhile, its water and climate systems are in rapid transformation. Relevant and accessible information about water and climate is therefore vital to detect, understand and adapt to the changes. READ MORE

6. 4. CFD MODELLING AND EXPERIMENTS ON AERATOR FLOW IN CHUTE SPILLWAYS

   Author : Penghua Teng; James Yang; Anders Wörman; Anton Schleiss; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Spillway Aerator; Cavitation; Air Entrainment; Two-phase Flow; VOF; Mixture Model; Two-Fluid Model; Air Cavity; Cavity Air Pressure; Air Concentration; Shadowgraphic Image Method SIM ; High-speed Particle Image Velocimetry HSPIV ; Bubble Tracking Method BTM ; luftningsramp; kavitation; luftinträngning; tvåfasflöde; VOF; Mixture Model; Two-Fluid Model; luftkavitet; kavitetslufttryck; luftkoncentration; skuggrafisk bildmetod; hastighetsmätning med höghastighetspartikelfotografering; bubbelspårningsmetod; Byggvetenskap; Civil and Architectural Engineering;

   Abstract : A chute spillway is a typical component of large dams for discharging floods. Because of the high water head, the flow velocity in the chute is often in excess of 20 m/s. Consequently, the structure is usually prone to cavitation damages. Flow aeration is evidenced to efficiently eliminate or to mitigate the damages. READ MORE

7. 5. Water physiology in burn victims

   Author : Joachim Zdolsek; Tøstolv Lund; Linköpings universitet; []
   Keywords : Total body water; Extracellular fluid; Burn; Bioelectrical impedance; Oedema; Extracellular matrix; MEDICINE; MEDICIN;

   Abstract : Patients who sustain a burn injury of more than 20 - 30 % TBSA will, if untreated, develop burn shock within a couple of hours. Flcid is lost fi·om the vascular compartment due to suction from the interstitium of the wound and due to a generalised increase in vascular permeability. READ MORE