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Detecting the groundwater runoff connectivity is important for mining and environment protection. However, traditional physical and chemical experiments based approaches are neither efficient nor effective. Experimental results have shown the bacterial community in an isolated well contains unique DNA sequences, and the bacterial communities in connected wells have common DNA sequences that are not...
Rock digestion methods, including lithium metaborate fusion and three microwave digestion procedures, are evaluated for the analysis of the rare earth elements (REEs) and 42 other trace elements in samples of Paleozoic carbonate, Paleozoic quartzite and shale from southern Nevada, and the U.S. Geological Survey standard for diabase, W-2. The trace elements were determined in the dissolved rock samples...
Tianjin is in a stage of rapid industrialization, and its demand for energy has been growing steadily. The industrial energy consumption accounts for over 60% of total energy consumption in Tianjin. A retrospective analysis is carried out on Tianjin industrial energy consumption. In 1995–2008, Tianjin's industrial energy intensity declined 7.52% annually, higher than the national average rate of 4...
Along with rapid economic development in China, the energy consumption and pollutants emission are increasing rapidly. It has caused great pressure to resource and environment. How to improve energy productivity in a more cost-effective manner and reduce atmospheric pollutants emission is a big problem at present. Based on Chinese energy consumption and atmospheric pollutants emission between 1990...
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