Prediction of Demand and Tendency of the Book Market in China

The prediction model of the demand of the book market in China from the quantitative angle is established,and the total demand of the books for years from 2002 to 2004 is predicted.The effects of the gross domestic product,household consumption,price and population on the demand of books are also analyzed.In the end,it is summarized that the acceleration of the development of Chinese book industry,the refinement of the books,the innovation of the advertisement,the series of the structure and the steady increase of the price will become the remarkable characteristics of the book market.

Parameters Affecting the Color Mechanism of Manganese Containing Colored Glasses

Color is an important tool for glass industry to let the product gain additional aesthetic and functional properties forced by the market demands. In this context, it is necessary to understand the color forming mechanism better in order to get target color and improve the yield. A detailed experimental study to investigate the relationship between the manganese content on color formation and the redox condition was carried out. All experiments were carried out at different level of iron and manganese oxides. Color parameters （dominant wavelength, brightness （%）, purity （%） and L-a-b values） were examined for large interval of batch redoxes. In this paper, the results of above mentioned experimental studies were discussed together.

Improving Flexibility of Supply Chain with Knowledge Management

In the tide of knowledge economy, the supply chain is facing the diversified customs＇ preference and the uncertain market demand. Core companies should encourage the staff of knowledge innovation and apply scientific means to forecast extemal conditions reasonably for response market test rapidly. Through the analysis of the problems existing in the flexible management, they would make corresponding measures to solve those problems to improve enterprise performance.

Growing Wages and Changing Demand for Workers in Chinese Enterprises

Taking advantage of company survey data,this paper examines the responsiveness of enterprises in manufacturing sectors to the recent labor market changes characterized by surging wages and shrinking unskilled workers.The result shows that the labor demand elasticity with regard to output is substantial.In other words,growing manufacturing will keep creating jobs and intensify labor scarcity in China.The wage elasticity is-0.40 for unskilled workers and-0.53 for skilled workers,which indicates that Chinese companies are quite responsive to the recent labor market changes.There exists a kind of substitution effect between skilled and unskilled workers,however,the magnitude of elasticity remains small.To promote economic upgrading in China's labor market,institutional and industrial policies should encourage companies to be responsive to the warning signals from the market of production factor.

Oil Refining Planning under Petroleum Products Demand Uncertainties： Case of Algeria

This paper aims to analyze, with a linear dynamic programming, the Algerian refining industry development by 2030 in the presence of uncertainties, both on the domestic demand and the exportation of the petroleum products. Currently, the Algerian refining industry has to be adapted to meet demand progress both in terms of volume and also in terms of specifications, in a general context marked by a strong volatility of the oil markets. Commonly, refining operations planning models are based on a deterministic linear programming. However, because of the demand fluctuation, and other conditions for the market, many parameters should be considered as uncertain such as the demand and the exportation. The impact of such uncertainties on the development＇s pattern of refining capacities is analyzed with a stochastic model. Finally, the results of both deterministic and stochastic models are compared.

测控技术与仪器的发展及特点分析

伴随着科技的日益进步和经济的飞速提升,测控技术与仪器的专业技术要求日益提高。同时,对于在测控技术和仪器的专项人才方面也逐渐展现了迫切的市场需求性。高校作为未来国家人才支柱的集中学习的机制,在如何培养高素质人才方面责任重大。由于高质量的测控技术与仪器的高效率使用,是推动社会发展的助力剂,所以在高校中培养测控技术与仪器的高效率使用显得格外重要。本文通过文献分析法,依据目前社会在测控技术与仪器的运用方面的现状进行深度的理性分析,发现诸多问题,并提出了与问题相对应得解决措施。