نتایج جستجو برای: sediment flushing
تعداد نتایج: 42925 فیلتر نتایج به سال:
Previous studies have shown that infaunal deposit feeders may enhance the loss of organic contaminants from sediments. However, the extent to which this occurs as a result of sediment microbial stimulation, porewater flushing, or biotransformation by infauna remains unclear. The purpose of this study was to determine whether the infaunal polychaete Capitella sp. I is able to metabolize the poly...
Seabed-hugging flows called turbidity currents are the volumetrically most important process transporting sediment across our planet and form its largest sediment accumulations. We seek to understand the internal structure and behavior of turbidity currents by reanalyzing the most detailed direct measurements yet of velocities and densities within oceanic turbidity currents, obtained from weekl...
The removal of reservoir silt and the restoration existing capacities through land excavation hydraulic sediment flushing have become necessary. Hydraulic discharge changes flow conditions downstream river channel. In Tamsui River estuary in Taiwan, from Shihmen upstream has potential impacts on morphology navigation channels adjacent coasts. This study employed a validated coastal estuarine pr...
In this data article, by using inductively coupled plasma optical spectrometry (ICP-OES), we aimed to (1) determine the concentration levels of As, Ag, Sr, Sn, Sb, and Mo in the sediments and the shells of Trachycardium lacunosum simultaneously in two separated areas (unpolluted and polluted areas) (2) comparison between the metal contents of sediments in the unpolluted and polluted areas as we...
ABSTRACT Among several techniques for prevention and mitigation of reservoir sedimentation, bottom outlets arise as a means removing sediment deposited close to the dam. Given reduced removal provided by traditional under pressure flushing conditions, this article proposes new type structure that aims increase in direction parallel dam axis. An experimental installation was employed evaluate it...
Effectiveness of artificial floods for benthic community recovery after sediment flushing from a dam
Coastal Louisiana is currently experiencing high rates of wetland loss and large-scale ecosystem restoration being implemented. One the largest most novel projects a controlled sediment diversion, proposed to rebuild sustain wetlands by diverting sediment- nutrient-rich water from Mississippi River. However, impact this diversion on nutrient budget receiving basin largely unknown. A quality mod...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید