Decentralized WIP-oriented manufacturing control (DEWIP)

DEWIP is a manufacturing control system for job shop environments aiming at achieving short and reliable lead times by establishing WIP control loops between the manufacturing work centres. The paper describes the mode of function, the setting of parameters and simulation results of the new manufacturing control system. The setting of parameters is done with the aid of the funnel model and the theory of logistic operating curves, both developed at the Institute of Production Systems at the University of Hanover. The simulation is conducted using industrial data and makes it possible to assess DEWIP with regard to lead times, WIP level, performance and schedule reliability. DEWIP is compared both with an uncontrolled process and with the manufacturing control systems Load oriented order release (LOOR), Conwip and Polca. The results suggest that DEWIP and the models employed for the setting of parameters are suitable for job shop production and therefore offer a valuable alternative to prevailing centralized manufacturing control systems.     

Exploring Social Class: Voices of Inter‐Class Couples

Social class is not often discussed or examined in‐depth in couple and family therapy research and literature even though social class shapes familial relationships and is considered an important variable in marital satisfaction. In this qualitative study, we explored the perceptions of eight couples who made lasting commitments across class lines by asking them about the impact of their social class backgrounds on their relationships. Three categories of themes emerged including: (a) differences and similarities in values and attitudes toward education, work, money, and class awareness/classism, (b) relationship issues involving families of origin, friends, and class‐based couple conflict, and (c) differences in economic resources, social capital and privileges/opportunities. Implications for assessment and treatment of couples are included.     

反馈交易规则与股票收益自相关实证分析

研究了反馈交易规则与上证综合指数日收益自相关之间的联系，样本取自上证指数１９９２年９月２９日至１９９７年９月３０日的日收益率数据。此外，文中采用ＧＡＲＣＨ（１，１）处理收益波动的异方差性，模型参数采用极大似然估计。实证模型还考虑了非同步交易引起的工序列相关以及反馈交易的非对称性。结果表明，除以往文献涉及的正序列相关外，正反馈交易将导致收益负的序列自相关，且相关系数绝对值随波动增大而增大，从而整个收益表现出随波动变化的序列相关。     

Marital Aspirations,Sexual Behaviors,and HIV/AIDS in Rural Malawi

We explore how marital aspirations are related to the sexual behaviors of adolescents and young adults in Malawi, where HIV/AIDS prevalence among adults exceeds 10%. We also consider whether the specter of AIDS is shaping ideals about marriage. By combining survey data (N = 1,087) and in‐depth interviews (N = 133) with young Malawians from the Malawi Diffusion and Ideational Change Project, we show that looking for and finding a suitable spouse are linked to sexual behaviors and, thus, HIV risks. Moreover, concerns about contracting HIV are closely tied to the ideal characteristics of a future spouse. Our findings draw long‐overdue attention to the importance of marital aspirations in understanding adolescent sexual behaviors and risks in the era of AIDS.     

学术视野中《大宅门》的“内”与“外”——对《大宅门》艺术价值及文化意义的综合透视

《大宅门》为20世纪我国的文学艺术画上了一个完整的和漂亮的句号,作为电视剧这一新兴艺术形式,《大宅门》的艺术水平,在中国电视艺术的发展史上,是具有里程碑意义的。作品中既以一个真实的家族创业与兴衰的历史过程为原型,塑造了一系列真实而生动的人物群像;又典型而全面地反映了我国2O世纪后半期的文化思潮和艺术观念。作品虽没有达到“现代《红楼梦》”那样的高度,却对21世纪艺术创造走向更高境界具有重要启示。     

试论市场经济下政府的适度规模--兼论我国"吃饭财政"与"建设财政"之争

首先分析了市场经济下政府与市场内在的统一关系 :伴随着公共产品论的提出 ,“私人品”与“公共品”统一于边际效用理论。由于缺乏市场价格引导的政府偏好以更大的规模提供过度的公共品 ,甚至在过大的规模下提供不足的公共品 ,从而出现“政府失灵”。最后分析了我国政府规模的现状及其原因 ,指出我国“吃饭财政”的迅速增长严重挤占了“建设财政”,这正是政府规模低效率膨胀的结果     

现代企业竞争及竞争效能描述新探

现代企业竞争已不再是传统竞争观念之下的企业之间为争夺最终消费者而展开的市场竞争了。现代企业要想在竞争中建立优势,就必须全面关注一切可能影响企业竞争力的相关组织和个人的作用。本文采用定性分析和定量分析相结合的方法,对现代企业竞争及其效能描述提出了一种全新的观点。     

多层超高砖砌体房屋的抗震设计研究

本文根据“小震不坏,大震不倒”的抗震原则,对多层砖砌体房屋进行了强度分析,对构造柱和混凝土事本抗剪强度的影响进行了分析,提出了只要严格加强构造措施,砖砌体结构的高度超过规范规定的限值也能保证其安全性的观点。     

关于建设吉林生态省的哲学思考

把吉林建设成生态省是深刻领会江泽民同志关于保护资源,保护生态的指示精神,是总结历史经验教训,把握时代契机作出的科学决策。建设生态省对实施“三大战略”有着重要的现实意义和深远的历史意义,并且有着坚实的哲学基础。人类的一切活动必须与自然和谐相处,协调发展。     

试论希腊化宗教之特征

希腊化时代是人类历史上第一次文化大融合的时代,也是一个专制而又动荡的时代,这一背景决定了希腊化宗教具有以下几个方面的特征：一、世界主义;二、神秘主义;三、帝王崇拜;四、宗教解构了哲学。从这四个方面可以看出,希腊化宗教为基督教的产生奠定了基石。