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The objective of this study was trying to use USEPA's integrated exposure uptake biokinetic model(IEUBK model), which had been widespread utiLized at abroad but lacked of studying and appLication in China, to assess the ecological risk of soil lead in former industrial sites of CHongqing, China. In this paper, concentrations of soil lead in five typical kinds of former industrial sites were determinated...
Using the data of Chinese publically traded firms, we examine the relationship between managerial overconfidence and firm expansion and find that managerial overconfidence is positively correlated with the rate of firm expansion. In particular, overconfident managers tend to internally expand firms in an aggressive manner. Also a negative, though not statistically significant, relationship exists...
In 2009, the percent of the dependence on foreign oil in the country breaking through the cordon of 50%, reached to 52%. The security of oil plays a key role in the national security. So the oil companies should continuously improve the efficiencies and enhance the competitiveness while speeding up the pace of the overseas mergers and acquisitions. This paper will set up a model to evaluate the performance...
The process restructuring of commercial banks is a significant transform for China's financial enterprises operating mode, and the IT platform construction plays a key role. This paper proposes that we should from the normative standards of the commercial bank's core business systems for the starting as soon as possible, to organize and work out the Integrated Financial Enterprise (IFE) solution,...
The characters and tendency of fuzzy boundary of enterprises are described, the types of fuzzy boundary was listed. A conceptual model of fuzzy boundary is constructed by introducing the covalent bond theory in quantum mechanics. Then, the model of optimization enterprise resources is built by the nonlinear programming with fuzzy constraint variables and penalty coefficients. Finally, some suggestions...
Supervisory systems show increasing importance in many plants to ensure the secure and stable production. And the fault tolerance ability is a key problem. Concerned with the problem of low automation level and high operation cost, a layered Bio-Network is studied inspired by biology system, and Bio-Entity as its functional unit is analyzed. In the bottom layer, the communication infrastructure is...
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