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The mathematical modeling and simulation based on the Modelica language usually gets a high-index differential-algebraic equation (DAE) system. The structural index reduction algorithms can serve as a fast method to reduce such high-indexed issues. In order to solve the failure of the structural index reduction algorithms in some cases, the combinatorial relaxation algorithm is analyzed and studied...
Urbanization promotes the development of industrialization and information, and develops the economy rapidly. In recent years, China's urbanization accelerates. But, at the meantime the human settlement of urban residents has been seriously broken. At present, it is very important to coordinate the urbanization with human settlement development, and promote the urban human settlement sustainable development...
Urbanization is a necessary requirement and result for industrial development. The urban land intensive use is a natural way for urban development. Land use and urban development interacts. This paper selected the perspective of a reasonable quantitative evaluation of land intensive use and the comprehensive level of urbanization of Korla City, analyzing the relationship between the two systems. According...
The mathematical modeling and simulation usually gets a high-index differential-algebraic equation (DAE) system. The structural index reduction algorithms can reduce high-index DAE to low-index DAE. In order to solve the failure of the structural index reduction algorithms in some cases, the authors firstly analyze the combinatorial relaxation algorithm. Then some key algorithms in the implementation...
Mineral resource exploitation has important impact on region economic development, industrialization level and urbanization. Take xinjiang as example, this paper analysis the basic feature of mineral resource exploitation and urbanization, on this basis, dynamic computation model is established to discuss the relativity of mineral resource exploitation, economic development, industrialization level...
This paper makes a comprehensive assessment on the urban-rural integration development at county level in Xinjiang, and reveals the characteristics and the regional differentiation laws. Overall, urban-rural integration development can be divided into four types: coordinated development type, less coordinated development type, primary-coordinated development type and lagging coordinated development...
In this paper, the present situation of social and economic development in the Lanzhou-Xining town-compact region in the underdeveloped Gansu and Qinghai provinces in China is assessed by selecting 22 indexes related to the social and economic development and using the multivariable statistical factor analysis, breakpoint model, variance analysis, etc. The followings are the results. First, all the...
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