基于多阶段差别规模效应的SMC供应链调度优化

在对服务大规模定制特征分析及其服务阶段划分及界定基础上,研究了服务定制过程中不同阶段的规模效应特性及差异,探讨了服务成本、服务时间、服务能力以及服务规模效应之间的内在关系.进而,搭建了服务大规模定制模式下供应链调度优化模型及求解算法,并通过算例分析了求解算法的可行性、有效性及适用性.     

土地整治项目PPP模式及其资产证券化问题探讨

土地整治是国家保障发展、保护耕地、统筹城乡土地配置的重大战略,但其所需资金数额巨大,仅靠财政资金难以为继,土地整治项目PPP运作资产证券化或许将成为解决融资这一关键问题的新途径.目前土地整治项目PPP运作有四种可能的模式,包括全域整治PPP模式、农用地整治+现代化农业产业经营PPP模式、农村建设用地整治PPP模式以及整村整治PPP模式,但都存在着一些局限性和不足.基于此,文章提出具有实现各方多赢可能性的新途径——土地整治项目PPP运作资产证券化,其具体运作过程中应注意谨慎使用于适当项目,理顺政府和社会资本的关系,健全利益分配机制,识别与分配风险,引入中长期投资群体.     

平行文本视角下企业英语语言资源拓展研究

随着我国贸易发展的日渐国际化,国贸企业对英语语言的现代化应用需要日渐提升.但我国目前在英语语言教育方面所提供的教育方式和教材等与国贸企业的实际需要之间尤其在口语应用方面存在很大的差距,其必然影响到国贸类企业的日常运营和海外拓展.基于此,笔者以英语语言现代化应用及企业语言资源的拓展需要为分析基础,引入英语语言现代化中的平行文本运用实践要求,对其融合模式及落实进行尝试性的探究,以辅助国贸类企业语言资产管理及平台构建.     

Birth Cohort and Age Changes in the Self‐Esteem of Chinese Adolescents: A Cross‐Temporal Meta‐Analysis, 1996–2009

The present cross‐temporal meta‐analysis involving 68 studies (n = 35,499) found that Chinese adolescents' scores on the Rosenberg Self‐Esteem Scale decreased substantially from 1996 to 2009. The decline of self‐esteem across birth cohorts was associated with the slide of social connection level of Chinese adolescents. Correlations between self‐esteem and corresponding social indicators like the floating population and divorce rate were significant. Analysis on self‐esteem age differences showed that self‐esteem development in China was different from Western results: self‐esteem scores followed a roughly increasing trend from Grade 7 through Grade 12 with double dip points at Grades 7 and 11.     

A 25-year perspective on levels of analysis in leadership research

The purpose of this article is to present a comprehensive 25-year review of the incorporation of levels of analysis into conceptual and empirical leadership research published within Leadership Quarterly throughout its history. We assessed the population of Leadership Quarterly's research (790 research articles) on four key levels of analysis-based issues: (1) explicit statement of the focal level(s) of analysis; (2) appropriate measurement given level of constructs; (3) use of a multi-level data analysis technique; and, (4) alignment of theory and data. Prior reviews regarding levels of analysis incorporation into leadership research have been limited to major research domains. Results revealed that while both conceptual and empirical articles only explicitly state the focal level of analysis in approximately one-third of the articles, appropriate levels-based measurement and alignment between theory and data are relatively strong areas of achievement for the articles within Leadership Quarterly. Multi-level data analysis techniques are used in less than one-fifth of all articles. Although there is room for improvement, there is evidence that Leadership Quarterly is a premier outlet for levels-based leadership research. Given the increasing complexity of organizational science with regard to groups, teams and collectives, Leadership Quarterly has an opportunity to model for organizational research on how to build and test complicated multi-level theories and models.     

Public Policy and Diffusion of Innovation

Marketers have traditionally studied diffusionof innovation with a primary focus on theindividual consumer as a unit of analysis, themajor types of findings being characteristicsof adopter categories and opinion leadership. We propose that this perspective is notadequate from a macromarketing perspective, inwhich the goals are to set public policy forsocietal good or to create an environment whichenables the diffusion of an innovation in a waythat no single marketer could do alone. Insetting public policy which can enable (orinhibit) diffusion of innovation for societalgood, a system composed of a mass socialinfrastructure, a competitive infrastructure,and a technical infrastructure should beconsidered.     

Fertility survey in the rural area of Henan province]

The population of Henan Province is 72,850,000, 92% of whom live in villages. From July 12 to August 11, 1981, a fertility survey was taken of 20 communes and 31 work brigades in the counties of Fugou, Shancai, and Dengfeng, in which 38,168 people and 5700 fertility registration forms were studied. In 1980, 15% of the 3 counties' population were women aged 18-49, 80% of whom were married. The birth rate was 134.56/1000, of which the rate for married women was 172.36/1000. A random sampling from Shancai of 18-49 year old women showed an average of 2.3 children per couple. The factors influencing rural fertility are economic, social, ideological, and cultural. The economic system of distribution according to work has actually encouraged population growth because in rural areas where the standard of living is low larger families with more workers have greater incomes than smaller families with fewer workers. Early marriage and early births are encouraged under this system, as evidenced by findings in Fugou County. The survey also found that in the 3 counties, virtually everyone marries, women who work tend to work in the village close to home, high illiteracy is prevalent, and traditional attitudes of favoring males over females were all factors contributing to early and frequent births. In order to lower rural birth rates, rural economy should be developed, old attitudes and habits should be changed, and literacy should be increased.     

有关青藏高原碉楼的传说与民俗事象

碉楼是青藏高原地区与藏民族历史密切相关的古老文化孑遗。本文根据前人调查并结合实地考察,对碉楼分布地区当地民族中有关碉楼的种种传说与民俗事象进行了系统汇集,着重讨论了碉楼的起源传说、碉楼传说与相关民俗事象以及碉楼的象征意义,认为这些民族志材料对深入认识青藏高原碉楼历史面貌与文化内涵具有重要启示作用。     

爆炸载荷作用下混凝土板的破坏机理分析

对C40混凝土板进行了爆炸冲击实验研究,并基于Johnson-Holmquist-Cook( HJC)本构模型,用LS-DYNA软件对其进行了数值模拟,两者结果符合较好.结果发现混凝土的震塌破坏主要是由于冲击波传至试件近下表面,在下表面产生反射,原波形与反射波叠加后形成拉伸波,当拉应力大于材料的动态最大拉伸强度时造成的拉伸破坏.     

集成通变——从艺术和设计的同构性看广义设计观

随着人类认知方式的改变、新技术的发明和审美要求的多元化,当下的设计形式和设计语言越发呈现出多样化的新面貌。今日的设计已经不再延续单一的发展路线,而是转化为一种多元的、综合理念的创新。现代设计是一种综合了文化、技术与生态等多方面的创新思维,艺术的发展也正走向广义化的思维交叉领域,体现出一种“集成通变”的综合理念。事实上,如果撇开艺术的具体形式,从观念层面审视设计与艺术,二者应该是一种“异质同构”的关系。