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In order to escape of risk and gain high returns, it is important for oil companies to determine the scale and structure of investment in upstream business. By introducing system dynamic principles, this paper builds a system dynamics model of upstream investment decision on basis of the oil company's practice in China. Empirical results show that total investment scale will decline and the proportion...
While an earthquake occurs especially in depressed areas or mountainous regions, the survey of damage loss becomes arduous because of chaos and awful communication condition. A solution is proposed that using RS (remote sensing) and GIS (Geographic Information System) techniques assesses seismic damage loss for emergency, which need establish a spatial database to store the necessary data. In this...
In China, the effect of air pollution on human health has been widely concerned and the acknowledge of health effects of air pollution has become the important basis of making related environmental control policies. This paper brought air pollution factors into health production function model and utilized related statistical data to evaluate the effect of air pollution on human health in China. The...
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