Sökning: "sedimentation"

Visar resultat 26 - 30 av 209 avhandlingar innehållade ordet sedimentation.

1. 26. Sedimentological and Hydrological Investigation of Mosul Dam Reservoir

   Författare :Issa E Issa; Ian Foster; Luleå tekniska universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Area-storage capacity curves; Area reduction method; Bathymetric survey; Losing storage capacity; Mosul dam; Reservoir bottom morphology; Reservoir sedimentation; Sediment trap efficiency; Useful life of dam; Soil Mechanics; Geoteknik;

   Sammanfattning : Reservoir sedimentation is the main problem that directly affects the performance of dams due to the reduction in the storage capacity of their reservoirs. Monitoring the storage capacity of reservoirs is an important issue for the planners, designers and operators of the dams. LÄS MER

3. 27. Sediment Characteristics and Sedimentation Rate Estimation in the Dukan Reservoir

   Författare :Rebwar Hassan; Nadhir Al-Ansari; Sven Knutsson; Salahalddin S. Ali; Fadhil Ahmed Ameen; Luleå tekniska universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Area-storage-capacity curves; Bathymetric survey; Dukan dam; Land use; Reservoir sedimentation; Sediment trap efficiency; SWAT; Soil Mechanics; Geoteknik;

   Sammanfattning : The Dukan Reservoir has been created from the construction of the Dukan Dam on the Lesser Zab River where it crosses the Khalakan Thrust Sheet (Khalakan Mountains) through a gorge 65 km northwest of Sulaimani and 295 km northeast of Baghdad. The Dukan Dam is a multi-purpose dam which was built from 1954 to 1959 to control the flooding of the Lesser Zab River, and to provide irrigation, hydroelectricity, and water storage. LÄS MER

4. 28. Insulin Resistance and Inflammation as Risk Factors for Congestive Heart Failure

   Författare :Erik Ingelsson; Lars Lind; Johan Ärnlöv; Johan Sundström; Jan Östergren; Uppsala universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Geriatric nursing; congestive heart failure; insulin resistance; inflammation; obesity; blood sedimentation; apolipoproteins; antioxidants; beta carotene; oxidative stress; registries; epidemiology; risk factors; Äldrevård; Older people and ageing; Äldre och åldrande;

   Sammanfattning : Congestive heart failure (CHF) is a major cause of morbidity and mortality and the identification of modifiable risk factors is crucial in order to diminish suffering of this common disease. The primary aim of this thesis was to investigate novel metabolic risk factors for CHF, with a focus on insulin resistance and inflammation. LÄS MER

5. 29. Risk from radionuclides: a frog's perspective : Accumulation of 137Cs in a riparian wetland, radiation doses, and effects on frogs and toads after low-dose rate exposure

   Författare :Karolina Stark; Nils Kautsky; Petra Wallberg; Torbjörn Nylén; Michael Gilek; Dennis Woodhead; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; dose model; mass balance budget; overbank sedimentation; amphibian; phantom; thermoluminescence chip; radiosensitivity; DNA damage; Biology; Biologi;

   Sammanfattning : Threats from man-made radionuclides include waste issues, increasing number of power plants, underground bomb testing, nuclear weapons, and “dirty bombs”. Until recently the ionizing radiation protection system focused on protecting humans with an implied protection of biota. LÄS MER

7. 30. Trophic ecology of meiofauna : Response to sedimentation of phytoplankton blooms in the Baltic Sea

   Författare :Francisco J.A. Nascimento; Ragnar Elmgren; Richard Warwick; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Meiofauna; Cyanobacteria; competition; facilitation; ecosystems processes; Marine ecology; Marin ekologi; Marine Ecology; marin ekologi;

   Sammanfattning : Marine soft sediments are the second largest habitat on Earth. How animal communities in this habitat are structured is a central issue in marine ecology. Food is an important limiting factor for many benthic populations, and settling organic matter from phytoplankton blooms is of vital importance to them. LÄS MER