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In this paper, we develop a model of supply chain network under oligopolistic competition. The supply chain network is consisted of oligopolistic firms that compete non-cooperatively. And all the firms try to determine their the product flows to maximize their profits. The Nash-Cournot equilibrium conditions are solved by using genetic algorithm without any assumption of continuity and differentiability...
With the change of business environment for Chinese private companies, performance evaluation system based on EVA and BSC has been introduced into performance evaluation for these companies. This paper describes the status quo of performance evaluation system in Chinese private companies firstly, then discusses the design of performance evaluation system based on EVA and BSC, and finally analyzes...
Associated with relative theory and methods of urban green space system, this paper analyzed some existing problems of Wuhan main city's park green spaces status through the statistical data, questionnaire survey and spot investigation, and final put forward the strategies and countermeasures to these problems.
In this paper, we studied the influence of different concentrations of chlorothalonil which was commonly used in North China, on the activities of soil invertase, catalase and urease. The results showed that the influence trend of chlorothalonil at different doses on soil enzyme activity was almost the same. For soil catalase, it showed significant activation. For soil urease, it showed stimulation...
This paper attempts to explore the concepts and characteristics of the landscape characteristic grade. By introducing the Theory on Grade of Urban Landscape Characteristic, it provides advice on construction of the Chinese urban landscape.
In this paper contrapose the characteristic of Uyghur character, propose a new method for Uyghur character recognition basing on neural network. The means utilizes projection to isolate the letters of the connected character field, then put pretreatment Uyghur character block image mode classify using neural network, extraction of outer features. It indicates that we can get relatively satisfying...
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