Applied Mechanics and Materials Vols. 644-650

Abstract: For the quality control of developed small batch manufacturing mode, a method based on stochastic weighted theory is proposed to optimize control parameters of control charts. The small sample data is sampled again by stochastic weighted method to obtain more information. Then, the sample data’s distribution parameters are estimated. After the estimated distribution parameter are tested, control parameters of control charts could be optimized dynamically. The method improves deficiencies of traditional control charts under low-volume production and realizes the quality control of small batch manufacturing. Experiments show that the optimized control parameters approach theory true values and are better than the traditional control charts’ control parameters. Therefore, the proposed method is fit for the quality control of small batch manufacturing.

Abstract: In this essay, we analyze possible influencing factors which relate to population agingusing SPSS.In accord with the multivariable linear regression model, we conclude that the health expenditure of government and society along with population density have a significant correlation with population aging. Moreover, according to Principal Component Analysis (PCA), the result indicates that such factors as per capita GDP, citizen consumption and so forth have a prominent influence on population aging, and also analyze different influencing degrees of different factors during different periods.

Abstract: The paper uses principal component analysis method to build a real estate company operating efficiency evaluation index system, use of data envelopment analysis method and real estate company financial data (2005 to 2011) to evaluation operating efficiency. The results show that Chinese real estate Company’s operating level of development is on the upswing. From the perspective of scale economy, most of the listed real estate companies no longer increase returns to scale. Accordingly, we can improve the overall efficiency of the real estate company by expanding the scale of real estate companies rather than simply adjusting product structure.

Abstract: This paper systematically and scientifically sums up standard comparison model and general comparison method base on standard system, the standard, indicators and gives a general idea for standard comparison system development by analyzing the common factors of the standard, studying the general principles of standard comparison. What is more, it provides a reference for standard comparison work in various fields.

Abstract: Big Data is a new concept of computer in the field of e-government, therefore knowledge and content of Big data needs to be deeply explored. In the era of big data, e-government will face enormous challenges and tests, to handle complex data will also become the main theme of the big data era of e-government development. Through the analysis of Big data processing mode, and on this basis, the effect of the era of big data in e-government development, through effective path to big data mode to the development of e-government.

Abstract: Accurate prediction of agricultural prices is beneficial to properly guide the circulation of agricultural products and agricultural production and realize the equilibrium of supply and demand of agricultural area. On the basis of wavelet neural network, this paper, choosing tomato prices as study object, tomato retail price data from ten collection sites in Hebei province from January 1, 2013 to December 30, 2013 as samples, builds the tomato price time series prediction model to test price model. As the results show, model prediction error rate is smaller than 0.01, and the correlation (R²) of predicted value and actual value is 0.908, showing that the model could accurately predict tomatoes price movements. The establishment of the model will provide technical support for tomato market monitoring and early warning and references for related policies.

Abstract: In recent years, the retail industry is facing great changes brought by the Internet, and O2O commerce model is an emerging pattern, especially in the last two years, it has gradually been accepted in traditional industries. In particular the retail industry practitioners who face the huge impact of E-commerce are full of hope and expectation for value and impact that O2O model can bring. For this reason, from the consumer point of view this article firstly considers situation and attitude of the business, and combines with the market situation, then tries to introduce a more comprehensive O2O model and analyses theoretical studies to provide some references for the O2O model practitioners.

Abstract: With the development of computer network technology, constructing the new teaching model of college English under network environment is a pressing matter. The paper introduces the theoretical basis, significance and strategies of constructing college English teaching model under network environment.

Abstract: The rapid development of information technology makes education technology having a new type of teaching media--Virtual Reality. In this paper, the virtual reality technology as a new type of education technology, studying from the view of Educational Technology, put forward a new research field of the education technology--Virtual teaching. It analysis several application forms of virtual teaching: teaching courseware, the network virtual teaching and virtual experiment. And it focuses on analyzing the PC virtual teaching environment platform’s structure and several big composition module. Virtual teaching must take the popular way as it supposes to popularize in the practical teaching, and the Pc platform conform to this requirement, which is the direction of virtual reality technology development in the future.

Abstract: With the development of network technology and the reform of teaching ideas, the web-based collaborative learning is regarded as one of the network teaching strategy with promising prospect of development and application. The paper describes the models, design principles and strategies of the network collaborative learning.