نتایج جستجو برای: open dumpsite
تعداد نتایج: 393931 فیلتر نتایج به سال:
Trace metal concentration in soils of Iyara area Warri, Delta State was studied using geophysical and geochemical techniques. Eight vertical electrical sounding (VES) SAS 1000 Terrameter with maximum current electrode spread 150 m the Schlumberger configuration carried out. The geoelectric layers obtained are topsoil, clay, sand fine-medium grained sand. fine to medium third fourth mainly const...
The U.S. Environmental Protection Agency (EPA) defines environmental justice as the "fair treatment for people of all races, cultures, and incomes, regarding the development of environmental laws, regulations, and policies." The last decade has focused considerable national attention on the environmental pollution inequity that persists among the nation's poorest communities. Despite these envi...
Dioxin-like compounds including polychlorinated dibenzo-p-dioxins (PCDDs), polychlorinated dibenzofurans (PCDFs) and polychlorinated biphenyls (PCBs) are polyhalogenated aromatic hydrocarbons (PHAHs) that bio-concentrate, bio-accumulate and bio-magnify because of their hydrophobicity, and persistence in the environment. These compounds are formed as a result of incomplete combustion during cert...
Borehole water has been used as a vital source of for many communities. The pollution these boreholes by potentially toxic elements using unlined solid waste dumpsites posed significant risk to the populace living around dumpsite. This study investigates environmental impact on borehole within vicinity an dumpsite in Nnewi metropolis. upstream and downstream samples (16 each) were collected wet...
امروزه توجه روزافزونی به جراحی¬های با حداقل تهاجم، به کمک اسکنرهای open-mr شده¬است. در این روش درمانی از تصاویر open-mr اخذ شده حین جراحی، و انطباق آن¬ها بر روی تصاویر سی¬تی¬اسکن قبل از جراحی، موقعیت تومور مشاهده می¬گردد. بدلیل میدان مغناطیسی کم (t 5/0) و شرایط متفاوت اتاق عمل، برخی اوقات کیفیت تصاویر open-mr از تصاویر mri یا سی¬تی¬اسکن، کمتر بوده و تومور در این تصاویر به¬راحتی قابل مشاهده نمی¬...
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