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In view of the shortcomings of bore and section data-based modeling,, a new kind of data structure is proposed in this paper to describe three-dimensional geological body structure based on borehole data. Based on OpenGL library, the 3D geological modeling and visualization of complex geologic body were achieved in Visual C ++ 6.0. Experimental data test shows that the data-structure not only can...
This paper does an empirical research on school production efficiency of educational resource in chinese compulsory education, using the DEA model, Tobit model and other statistical methods. Results show that: (1) The school production efficiency of educational resource in the middle-eastern area of China is not satisfactory. Therefore, it is a feasible way to improve school production efficiency;...
At first, we analyze the advantages about employing multilevel model in communication research. When it samples from different levels and units, the resultant data will appear stratification. Hierarchical data structure is common in communication studies. Audiences exist within hierarchies tend to be more similar to each other than people randomly sampled from the entire population. Therefore, multilevel...
The theoretical calculation model for price-earning ratio (PE) is deduced through transforming the dividend discount model so as to find out the main factors affecting price-earning ratio in theory. Stocks of Shanghai Stock Exchange (SSE) 180 index are selected as the sample, and empirical study on the main factors affecting price-earning ratio is carried out based on the panel data during the 2005–2008...
Based on Inner Mongolia Autonomous Region, this paper analyzes the long-run and short-run influence of expenditure for S&T on economic growth in the minority area. In the process of analysis, the methods of panel unit root test and panel co-integration together with the error correction model (ECM) are used. The results show that expenditure for S&T promoted the economic growth in the minority...
In the modern society of which material capital is relatively abundant, human capital places an increasingly prominent role in economic growth. This article,which is based on the principle of human capital in connection with the actual situation of China's regional economic development, uses Lucas' model of human capital spillover to analysis growth differences in human capital's contribution to economic...
Workflow simulation is a valid technique backing up process improvement. To this day, workflow model simulation is still a weak segment. Based on the research on workflow simulation technique, this issue carries out a way of business process simulation based on workflow, and offers the realization of workflow simulation mechanism supporting business process based on virtual running environment, finds...
In 2010, China's domestic value-added tax revenue is 2.109195 trillion yuan, accounting for 29% of the total income tax revenue, is one of China's current major taxes. Therefore, based on the data in the CTAIS to analyse the tax burden, and constructs the VAT tax burden warming system, is the effective measures to keep the rapid growth of VAT. meanwhile, through drawing up the value added table, can...
With the development of computer technology and geological modeling study of the gradual maturity, 3D for the engineering geological modeling and information visualization analysis system of opportunities and challenges brought about. Have carried on the detailed introduction to the three dimensional geological modeling tool and the method. Summarized the three dimensional geological modeling basic...
Railway, as one of the most essential infrastructures of China, has endured extremely high difficulty level due to huge investment scale and high quality requirements. The traditional management method of technical-economic indexes and simulation are not perfect, so simulating technical indexes catering to the features of railway construction project is an accurate and efficient management method...
The paper analysed the efficiency of logistics industry in 31 provinces of China in 2009 by three-stage DEA model. The empirical results are as follows: firstly, the technical efficiency of 31 provinces is low, with the average of 0. 468, and the reason is the lack of scale efficiency; secondly, the development of logistics industry in East, Central and West of China differs wildly, specifically speaking,...
This paper constructs a dynamic stochastic general equilibrium model to analyze the behavior of the unobserved inflation target implicitly included in China's monetary policy in a New Keynesian framework. The empirical evidence suggests that the model is suitable for research on monetary policy and monetary business cycle. The results also support the assumption that China's monetary policy has a...
Value-added tax revenue occupies an important position in China. The efficiency study of value-added tax has important practical significance in the critical point of Chinese value-added tax transformation. Using BCC model we estimate Chinese value-added tax comprehensive efficiency, pure technical efficiency and scale efficiency from 1995 to 2008 from a macro perspective. The study shows that value-added...
Using computer simulation technology for simulation and effective evaluation is the current plane the important means of distribution system research. With engineering application needs and provide the test data as the basis, Through airborne power distribution systems and electrical equipment for a detailed analysis, Based on the functional requirement, Based on the schematic and modeling method...
In this paper, based on the quarterly data of the United States and its trading partners, the use of the geometric distributed lag model, cointegration to analyze the U.S. dollar exchange rate changes affect the trade balance of the country to conclude: the different trading partners for the U.S. dollar closing exchange rate changes on U.S. trade support quite different effects.
In this study, firstly, the authors provide a brief introduction to studies of exchange rate forecasting in recent years and focus on the neural network methods. Secondly, they study five data samples by four neural network models, which include Genetic Algorithm neural network (GA-ANN), Quasi Newton neural network (QN-ANN), a common BP-neural network (ANN) and a BP-neural network given 10 times random...
China is a major exporter of tea, Moroccan tea is also China's largest export market. Nearly three years in RMB exchange rate appreciation about 15% of our country, tea exports have far-reaching influence. In this paper, the RMB exchange rate movements on exports on the basis of the general principles and then building models, from the perspective of positivism analysis of RMB exchange rate on China's...
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