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According to the features of the high temperature's impacts on inland shipping, the impacts were divided into light, moderate and severe level. Based on the series data of temperature time in seventeen stations which near the coastal area of Middle Yangtze River during the period between 1965 and 2008, the characteristics of climate variations influenced by the high temperature are analyzed and discussed...
Middle and small size fault structure is the key geological factor affecting the safety production of DongPang mine field. Finding out development character of middle and small fault structure in DongPang mine field is to provide the geological premise for mining design of coal mine and working face layout. Based on the analysis of real data, 20 factors affecting the development of middle and small...
This article pointed out the weakness of traditional U-R utility function and studied the E-V utility function which is based on the expected profit and variance. It proposed the sufficient and necessary conditions to judge the risk attitude by the E-V utility function and gave out the proof. In the meantime, it conducted a demonstrative research on the problem of risk attitude in Shanghai securities...
The effects of the IP telephone's entrance into the long-distance telephone service market in China were analyzed empirically. It is the high speed expansion of the Internet users, as well as the relatively lower call fees, that has promoted the IP telephone's blast into that market in recent years. The entrance of the IP telephone has changed the structure of the market into a triangular framework...
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