نتایج جستجو برای: sediment trapping
تعداد نتایج: 57957 فیلتر نتایج به سال:
Accumulations of sediment beneath the Antarctic Ice Sheet contain a range of physical and chemical proxies with the potential to document changes in ice sheet history and to identify and characterize life in subglacial settings. Retrieving subglacial sediments and sediment cores presents several unique challenges to existing technologies. This paper briefly reviews the history of sediment sampl...
Evaluation of Sediment Trapping Efficiency of Vegetative Filter Strips Using Machine Learning Models
We developed a computer-aided methodology – the Bio-Particle (BP) simulation technique – for the general particle movement in Lab-On-A-Chip devices. This has also been validated with experiments on biological cells (3T3 cell; diameter 10 μm). The cell motion under steady flow was calculated by applying the one-way coupled Lagrangian method. The equation of motion consists of multiple force term...
Salt marshes worldwide are faced with threats from rising sea levels and coastal development. We measured changes in salt marsh vegetation structure using remote sensing and its consequences for carbon sequestration, wave attenuation, and sediment trapping ability using remotely sensed imaging, field measurement data, and the published literature data pertaining to the Yangtze Estuary, a rapidl...
The availability of nitrogen in sediment phytodetritus to seagrass was investigated in 5 tropical species (Thalassia hemprichii, Halodule uninervis, H. pinifolia, Halophila ovalis/ovata and Syringodium isoetifolium) from Indonesia. 15N-labeled phytodetritus was injected into the sediment and the appearance of 15N in the roots, the rhizomes and the leaves of the plants were measured after 1, 2, ...
<!!!!!!!! THOMAS, E. and VAREKAMP, J.C, 1991. Paleo-environmental analyses of marsh sequences (Clinton, Connecticut): evidence for punctuated rise in relative sealevel during the latest Hol ocene. Journal of Coastal Research, SI #11, 125-158. Fort Lauderdale (Florida). ISSN 0749 0208. We developed an integrated chemical-faunal approach to paleo-environmental analysis of salt marsh sequences. Se...
Arsenic (As) fractions in the sediments of seven lakes from East Plain Ecoregion and six lakes from Yungui Plateau Ecoregion, China, were investigated. Results indicated that the total As concentrations in sediment samples of lakes of the East Plain Lake Ecoregion are higher than those of Yungui Plateau Lake Ecoregion. Residual As is the main fraction in sediment samples of lakes from both ecor...
Recent sedimentological and morphological evolution of an island in the River Loire (France) was investigated using the Cs method. This study describes the morphological adjustment of the island in the last 50 years, which corresponds to the increased bed incision of this sandy, multiple-channel environment because of, among other things, the increase in sediment extraction up to 1995. The resu...
today, due to qualitative growth and scientific advances, energy, especially electricity is increasingly needed by human society. one of the almost endless and pure energy which have been paid attention over the years is the solar energy. solar cells directly convert solar energy into electrical energy and are one of the main blocks of photovoltaic systems. significant improvement has been made...
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