نتایج جستجو برای: gold mine
تعداد نتایج: 106043 فیلتر نتایج به سال:
With the accession to WTO and the establishment of Shanghai Gold Exchange, gold mines in China are facing more severe competition from both home and abroad. Supply Chain Management (SCM), a new management idea gradually accepted all over the world, provides the gold mines in China with a new management mode. In this thesis, under the guidance of SCM theory, based on the analyzing to the actuali...
Introduction During 1986 the Gold Division of Anglo American Corporation investigated the use of interactive graphics systems for use in the day-to-day operations and management of its gold mines. With the assistance of Intergra~h South Africa, whose system was finally selected, the Gold Division has begun a major programme of implementation and customisation which is showing signs of becoming ...
Mining is one of the major causes of elevation of naturally-occurring radionuclide material (NORM) concentrations on the Earth's surface. The aim of this study was to evaluate the human risk associated with exposure to NORMs in soils from mine tailings around a gold mine. A broad-energy germanium detector was used to measure activity concentrations of these NORMs in 66 soil samples (56 from fiv...
چکیده ندارد.
Gold mines in the Yellowknife, NT, region--in particular, the Giant Mine--operated from 1949-99, releasing 237,000 tonnes of waste arsenic trioxide (As2O3) dust, among other compounds, from gold ore extraction and roasting processes. For the first time, we show the geospatial distribution of roaster-derived emissions of several chemical species beyond the mine property on otherwise undisturbed ...
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