Supply chain management: a supplier perspective

A new way of researching into supply chain management is introduced by adopting a supplier perspective. Details are given of mixed integer linear planning and simulation models. The planning model takes into consideration firm and forecast orders (customer's forecast purchasing orders) and the behaviour of the supplier's suppliers and suppliers' subcontractors. The simulation model takes into account the dynamic behaviour of the supply chain and includes the planning production behaviour of a supplying company based on the planning model. The supplier manager can use the simulation model to determine what kind of parameters most affect company performances and then propose new management rules. Quantitative results that prove the benefits of integrating forecast orders for an aeronautic supplier have been provided.     

中州文士对元代儒学的贡献

本文分析中州文士对元代儒学复兴的贡献。文章分四大部分 ,即缑氏山杜时升、杜瑛父子维系二程性理之学的贡献 ;河南姚枢光大北方理学第一功 ;河内许衡继往圣、开来学之功 ;鲁山王磐、西华徐世隆、卫辉王恽推波助澜之功。     

浅析中亚的地缘态势及对中国的影响

中亚地区地缘战略极其重要，具有现实的和潜在的地缘政治价值。冷战后，各大国纷纷介入，使中亚成为大国和地区力量角逐的又一个新的焦点。由于中亚各国是中国的近邻，因此，在中亚展开的激烈地缘竞争态势必然与中国的战略利益密切联系，对中国的边疆稳定、能源安全造成重大的影响。     

党的十七届五中全会对科学发展观的坚持和发展

党的十七届五中全会通过的关于我国＂十二五＂发展的建议,提出了一系列关于发展、科学发展的新思想,丰富和发展了科学发展观的内容。其中关于以科学发展为主题、提升国家文化软实力以及未来我国各方面发展的基本思路,值得我们认真思考和研究。     

THE POLITICAL ECONOMY OF TIME IN THE INTERNET ERA: FEMINIST PERSPECTIVES AND CHALLENGES

This paper examines the gender matrix of time, arguing for cross-disciplinary consideration of political economy, globalization and technology to achieve a detailed understanding of gendered hierarchies of time and the ways in which public/private identifications of social space and time have variously constructed and maintained them. It is argued that women are alienated from their own time, which is identified as most legitimately allocated to the service of others both in the home and at work. The inter-relationship of technologies and gendered identities is explored in relation to public/private divisions and the political-economic and scientific-technological knowledge processes that contribute to upholding them. ICTs reflect these historically established gendered patterns, but international projects such as 'Women on the Net' also demonstrate the capacities of these technologies for disrupting the gender matrix of time through their use by women for women.     

On estimating the dimensionality in discriminant analysis

In discriminant analysis, the dimension of the hyperplane which population mean vectors span is called the dimensionality. The procedures commonly used to estimate this dimension involve testing a sequence of dimensionality hypotheses as well as model fitting approaches based on (consistent) Akaike's method, (modified) Mallows' method and Schwarz's method. The marginal log-likelihood (MLL) method is developed and the asymptotic distribution of the dimensionality estimated by this method for normal populations is derived. Furthermore a modified marginal log-likelihood (MMLL) method is also considered. The MLL method is not consistent for large samples and two modified criteria are proposed which attain asymptotic consistency. Some comments are made with regard to the robustness of this method to departures from normality. The operating characteristics of the various methods proposed are examined and compared.     

Conditional interval estimation of the mean following rejection of a two sided test

The effect of rejecting a two-sided preliminary test of significance for the mean of a normal distribution upon subsequent interval estimation of the mean is examined. For the case where the variance is known, conditional confidence intervals may be shorter than unconditional intervals, in contrast to the one-sided preliminary test case examined by Meeks and D’Agostino (1983, The American Statistician, 7, 134-136) . For the case where the variance is unknown and must be estimated by the sample variance, it is shown that customary intervals do not offer uniformly greater or lesser coverage than the nominal level.     

中央大学建筑系与民国时期的建筑师群体

通过对民国时期中央大学建筑系发展过程的梳理及对中央大学建筑系师资组成和性质的分析,从一个侧面揭示出民国时期大学师资兼职流动与大学学术发展的关系。就民国建筑教育而言,建筑师和教师这一双重身份及由此形成的大学宽松的教学氛围和人才的自由流动,在一定程度上促成了中央大学建筑系的人才济济与快速发展,并产生了民国时期辉煌的建筑成就。     

东欧中亚国家阶级结构的变化

东欧中亚国家的社会面貌已经发生了全面而深刻的变化 ,阶级结构的变化便是这其中的重要内容。在推动阶级结构发生改变的诸多因素中 ,这些国家的历史传统、所确立的目标模式以及所推行的实际政策和具体操作方式发挥了突出的作用。今天东欧中亚国家阶级结构的面貌可以概括为 :两大基本板块 (即“上流社会”与“下层社会”的二元格局 )、四个主要阶级 (即官僚阶级、官僚资产阶级、新兴的资产阶级和小资产阶级以及雇佣劳动阶级 )。无论是就种类还是就属性而言 ,这些社会集团时下都带有鲜明的转型社会的特征。     

中亚国家能源政策及对策分析

中亚国家利用其优越的地缘优势和油气资源优势,实施了一系列资源立国政策,极大地推动了该地区国家经济的恢复和发展,引起了世界各国高度关注,同时,也为中国与中亚地区国家的油气资源合作带来了机遇和挑战。对中亚国家能源政策和未来能源发展趋势的分析表明,我国在中亚地区能源(油气资源)战略中应采取相应的应对策略。