نتایج جستجو برای: pb accumulations
تعداد نتایج: 39795 فیلتر نتایج به سال:
Heavy metals accumulations at Dam basin originated from mining sites through erosion and water transportations find themselves in a soil, bodies plants contaminated soil their roots those that settle on the get to animals organs. This study explored concentration of these heavy levels present rice grown vicinity Dam, which were compared with [1] maximum recommendation safer for human ingesting....
Patients with beta-thalassemia may present with an acquired diffuse elastic tissue defect due to degeneration of elastic tissue along with vaso-occlusive findings in the retinal microvasculature. Here we report the case of a patient with granular-like accumulation presenting as black sunburst lesions detected by optical coherence tomography (OCT). A 38-year-old man with beta-thalassemia interme...
Field surveys in the 724-km Queets river basin on the west slope of the Olympic Mountains in NW Washington reveal basin-wide patterns of distinctive wood debris (WD) accumulations that arise from different mechanisms of WD recruitment, hydraulic geometry, and physical characteristics of WD. Individual pieces of WD in an accumulation or jam can be separated into key, racked, and loose members. T...
The objective of this study was to evaluate stable Pb isotope signatures as a tracer for Pb contamination in Lake Andong. For Pb isotope analysis, we collected water and sediment from Lake Andong, particles in the air, soils, and stream water, mine tailings, sludge and wastewater from zinc smelting around lake Andong watershed. The results showed that Pb isotope ratios (Pb/Pb, Pb/Pb, and Pb/Pb)...
The Mediterranean seagrass Posidonia oceanica (L.) Delile has been used for trace element (TE) biomonitoring since decades ago. However, present informations for this bioindicator are limited mainly to plant TE levels, while virtually nothing is known about their fluxes through P. oceanica meadows. We therefore contaminated seagrass bed portions in situ at two experimental TE levels with a mix ...
an agricultural waste i.e. rice husk has been used as a cheap adsorbent for the removal ofleadas a harmful heavy metal from contaminated water via adsorption. the adsorption capacity of rice husk was calculated by equilibrium models. the results showed that the adsorption process has the best accordance with langmuir model. the kinetics of the adsorption was also investigated and obtained that ...
The Pb region is characterised by the existence of collective octupole states. Here we populated such states in Pb + Pb deep-inelastic reactions. γ-ray angular distribution measurements were used to infer the octupole character of several E3 transitions. The octupole character of the 2318 keV 17− → 14 in Pb, 2485 keV 19/2− → 13/2 in Pb, 2419 keV 15/2− → 9/2 in Pb and 2465 keV 17/2 → 11/2− in Tl...
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