Asymptotically optimal policy for stochastic job shop scheduling problem to minimize makespan

This paper studies the large-scale stochastic job shop scheduling problem with general number of similar jobs, where the processing times of the same step are independently drawn from a known probability distribution, and the objective is to minimize the makespan. For the stochastic problem, we introduce the fluid relaxation of its deterministic counterpart, and define a fluid schedule for the fluid relaxation. By tracking the fluid schedule, a policy is proposed for the stochastic job shop scheduling problem. The expected value of the gap between the solution produced by the policy and the optimal solution is proved to be O(1), which indicates the policy is asymptotically optimal in expectation.     

试论非物质文化遗产保护与地理标志产品保护的关系——以热贡唐卡为例

本文论述了热贡艺术非物质文化遗产保护与热贡唐卡地理标志产品保护的关系,分析了非物质文化的传承和资源价值,从地理标志产品的角度提出了非物质文化遗产艺术产品开发和利用的建议。     

种次号作为书次号时辅助区分号的设置与应用

本文论述在以种次号作为书次号时如何合理使用辅助区分号,使得馆藏排架更加科学合理,方便读者利用。     

经济全球化的悖论:脆弱的全球经济——解读罗伯特·吉尔平的《全球资本主义的挑战》

冷战结束后,经济全球化成了国际经济事务、国际政治事务最突出的特征.一些学者对国家的作用产生怀疑,认为国家在退却,市场的作用在彰显.鉴于此,罗伯特·吉尔平详细分析了经济全球化的本质和进程,指出经济全球化具有内在的脆弱性,具体分析了导致脆弱性的原因,并且提出脆弱的全球经济的管理问题,即经济全球化和自由世界经济的顺利运行离不开政治保障,需要得到有效的领导和管理.否则,不能有序推进.     

转变我国经济发展方式的政策建议

一、我国转变经济发展方式的主要内涵 党的十七大报告提出要“加快转变经济发展方式．推动产业结构优化升级”．首次将党的十四届五中全会提出的“转变经济增长方式”改为“转变经济发展方式”。为此,我们有必要首先了解两者的内涵。     

青岛市加快推进区域金融中心建设的问题与对策

青岛市是山东省经济发展的龙头。伴随经济的快速增长。近年来金融业也取得了长足的发展。在审视和考察国内主要区域金融中心发展和建设经验的基础上可知。为使青岛市的经济发展迈上更高的台阶,金融支撑必不可少。而其核心在于金融服务种类和水平的提升。利用区位优势,青岛市的金融服务业水平提升之后,能为整个山东省及周边区域的经济发展提供强有力的金融支持。因此,加快推进青岛市区域金融中心建设具有重要的现实意义。实际上有关青岛市建设区域金融中心早有规划和实施,根据山东省政府“十一五”规划。要基本形成济南和青岛两个在全国具有较大影响的区域金融中心。目前“十一五”规划期已近结束．回顾青岛市区域金融中心建设的发展历程。总结成绩、寻找不足．进而为今后推进青岛市区域金融中心建设积累经验、寻找突破点。     

Study on Time Expectancy of Care for Daily Living of Chinese Elderly

According to the data of the Chinese Longitudinal Healthy Longevity Survey(CLHLS)and applyin g methods of Sullivan and multistate life table,this paper examines the time expectancy of care for daily living of Chinese elderly and its proportion in their elderly life.The results find that there exists a signifi cant gender gap of the expectancy,which the male at 65averagely are expected to have four to five care years while the female at 65averagely are expected to have seven to eight care years.The time expectancy for slight care of daily living is longer than that for sever care.Additionally,there is no significant difference between urban elderly and rural elderly.However,as age increases,the time expectancy for slight care goes down while that for sever care stabilities at a constant at different ages.The time expectancy for different types of care and its proportion in the rest of life are significantly various.The study points out that the establishment and improvement of care insurance system and the elderly care service are very necessary.     

Interwoven migration narratives: identity and social representations in the Lusophone world

This article provides an exploratory analysis of the life narratives of migrants in the Portuguese-speaking world. By interweaving the life experiences of eight participants in three thematic clusters – ‘shared past’, language and sense of community – we propose a critique of the deep-seated idea of the Lusophone space as a community constructed by the harmonious conviviality of different countries and people. Drawing on contributions from cultural studies, social psychology, anthropology and sociology, we first aim to give voice to the human subjects who embark on migrations and then to understand how the engendered process of identity construction is framed by their social world, simultaneously reframing it. Thus, we aim at shedding light on the ways in which aspects of the political discourses on Lusophony are used (and are instrumental) to the migrants’ identity narrative (re)construction.     

Complete moment convergence of widely orthant dependent random variables

It is known that the dependence structure of widely orthant dependent (WOD) random variables is weaker than those of negatively associated (NA) random variables, negatively superadditive dependent (NSD) random variables, negatively orthant dependent (NOD) random variables, and extended negatively dependent (END) random variables. In this article, the results of complete moment convergence and complete convergence are presented for WOD sequence under the same moment conditions as independent sequence in classical result (Chow 1988 Chow, Y. (1988). On the rate of moment convergence of sample sums and extremes. Bull. Inst. Math. Acad. Sin. 16(3):177–201. [Google Scholar]).     

经济增长、国际贸易与环境污染的关系研究

文章利用金砖国家1992-2011年的平衡面板数据,分别使用固定效应模型和两阶段GMM的方法检验了经济增长、国际贸易和环境污染间的相关关系.研究结果表明,金砖国家的经济增长与环境污染之间是呈现N型曲线关系,印度处于N型曲线的第一拐点前,中国和南非位于第一拐点和第二拐点之间,巴西和俄罗斯处于第二拐点之后.总体上金砖国家的贸易开放度的提升会加剧环境污染,由贸易活动引起的经济增长会使环境恶化;经济结构、产业结构、人口增长、能源消耗及技术进步等因素均会对污染物的排放产生影响.