Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 33 for “"Water reservoirs"”.
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Seismic fluid-structure-soil interaction of buried water reservoirs
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2025-05-01
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Geochemical drivers of Mn removal in drinking water reservoirs under hypolimnetic oxygenation
… experiments and field monitoring at two drinking water reservoirs in southwestern Virginia – Falling Creek Reservoir (FCR) and Carvins Cove Reservoir (CCR). In laboratory experiments in pH and alkalinity-adjusted nanopure water solutions, we observed substantial Mn removal within 14 days only …
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Evolution Of Water Reservoirs In The Early Solar System Through Their Oxygen Isotopic Composition
… δ<sup>17</sup>0 and δ<sup>18</sup>0 from small water samples extracted from meteorites. Isotopic measurements are made using a continuous-flow, isotope ratio mass spectrometer (Delta C, Finnigan Mat) utilising a helium carrier gas. Oxygen is extracted from water using the powdered, solid …
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Import and decomposition of dissolved organic carbon in pre-dams of drinking water reservoirs
… the aquatic carbon cycle as well as for drinking water production from surface waters. DOC concentrations increased in water bodies of the northern hemisphere in the last decades, posing ecological consequences and water quality problems. Within the pelagic zone of lakes and reservoirs, the DOC …
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Hydrologic and environmental drivers of metals (Al, Ba, Cu, Sr) in two drinking water reservoirs in southwestern Virginia
Contamination of drinking water supplies poses a growing challenge for drinking water utilities due to treatment cost and changing climatic conditions. In this study, I examined the drivers of four metals—aluminum (Al), barium (Ba), copper (Cu), and strontium (Sr)—across two drinking water …
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Farm-Scale Water Storage in Morocco: Low-Carbon Design with Parametric FEA Optimization
Morocco faces increasing water scarcity with an anticipated decline in rainfall. Rising temperatures have resulted in drier and denser soil, causing water to be trapped on the surface and evaporate. One solution is to shift water management from large-scale to farm-scale. Underground water …
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Hydropower cities : a new candidate for eco-utopia
The increasing need for water due to incessant growth of population of the world makes it imperative to build water reservoirs in different location of the world. Water reservoirs most of the time are used as a mean to generate energy. Hydropower energy is one of most efficient and renewable ways …
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The Applied Phycology and Biochemistry of Managed Reservoirs in the East of England
… is one of the greatest threats to drinking water supplies around the world. Managing these vulnerable systems is complex, requiring mitigation and adaptation strategies that can combat multiple stressors (i.e. drought and eutrophication). This is especially true for reservoirs in the East of …
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Insect-Induced Forest Disturbance Impacts on Select Water Quality Parameters in a Closed Drinking Water Reservoir
… precipitation and river inflows impact drinking water reservoirs. Natural organic matter (NOM) directly impacts water treatment process effectiveness and is identified as an emerging contaminant of concern. Few studies have examined how insect-induced forest disturbance contributes to abiotic …
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Υγιεινολογικός έλεγχος των πόσιμων υδάτων του γεωγραφικού διαμερίσματος Ηπείρου
… of the sanitary condition of potable water in the region of Epirus. The bacterial indicators of water pollution (total count, total coliforms, fecal coliforms and enterococci) were used in this study. Also, 334 strains grown on the m-Endo agar (enterobacteriaceae) were further …
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Metal fluxes across the sediment water interface in a drinking water reservoir
… of iron (Fe) and manganese (Mn) in drinking water degrade water quality by affecting taste, odor, and color. Under oxic conditions (dissolved oxygen (DO) >2 mg/L), Fe and Mn are rarely present in soluble form in natural waters, as they occur as insoluble, oxidized minerals in sediments. …
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Study of Surface Tension, Natural Evaporation, and Subcooled Boiling Evaporation of Aqueous Surfactant Solutions
… of solutions and are studied in relation to water loss prevention and heat dissipation. Surfactants could be useful under drought conditions which present challenges to water management on a yearly basis in arid areas of the world. Recent water scarcity in the greater Los Angeles area, south …
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Oxygen isotopes as a tracer of biospheric CO2 gross fluxes : a local feasibility study
… derived from equilibration with respective water reservoirs (i.e. soil and leaf water). The associated processes were investigated here on a local scale during three intensive measurement campaigns in a natural boreal forest reserve in Russia. Diurnal cycles of atmospheric CO2 and its stable …
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Ery Urbanism: Framework for Water Inclusive Urban Growth in Chennai
… around an elaborate cascading system of water tanks, locally known as ‘Erys’. Traditionally, as an agrarian society these erys were ecological commons that engendered biodiversity, and community building. They served as essential water reservoirs and flood control systems that were …
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On the feasibility of generating and storing winter ice to meet water demands in the summer
Summer water shortages have become a problem in Southeastern Massachusetts, communities in Vermont, New Hampshire and Rhode Island, and in a few areas in the Great Plains. This thesis proposes a conceptual system and outlines its feasibility for the production of large masses of ice in the winter …
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A Study of Ground Penetrating Radar Methods in an Underground Stone Mine to Improve Ground Control
… large opening underground mines. Issues include water inrush, structural instability, and engineering uncertainty in these environments. Coupled with the fracturing prevalent in folded sedimentary rocks, karsts are complex and challenging ground control risks. Traditional methods of predicting …
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Turbulence In Low Energy Lacustrine Environments At The Sediment-Water Interface
The sediment-water interface is an important region where biological, chemical, and physical processes occur. Fluid flow determines the ability of organisms to utilize the bottom sediments for food, shelter, and reproduction, the amount and rate of mass transfer between the sediment and bulk fluid, …
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Energy controls on diurnal snowmelt events and stream recharge, Lost Horse Canyon, Bitterroot Mountains, MT
Streamflow and groundwater response to snowmelt in forested subalpine catchments carry integrated information about snowmelt events within the basin at different temporal scales. High frequency snowmelt events are often dominated by the day-night cycle, which is reflected in groundwater and …
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Energy controls on diurnal snowmelt events and stream recharge, Lost Horse Canyon, Bitterroot Mountains, MT
Streamflow and groundwater response to snowmelt in forested subalpine catchments carry integrated information about snowmelt events within the basin at different temporal scales. High frequency snowmelt events are often dominated by the day-night cycle, which is reflected in groundwater and …
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