通货膨胀下的联合库存选址模型研究

研究了通货膨胀对涉及一个供应商、多个候选配送中心和零售商的三级分销网络设计的影响.不同于传统的联合库存选址模型,所研究的模型考虑了整个系统的相关成本的时间价值,其目标是使在一定的通货膨胀率下总的选址、运输和库存成本之和的现值最小.为此,建立了一个非线性的整数规划模型,该模型为无容量约束问题的扩展模型,属于NP-hard问题.提出了3种基于不同编码形式的遗传算法用于求解该模型,并通过不同规模的算例对3种算法进行了有效性的分析和对比.最后,通过对各算例的计算结果的分析,发现随着通货膨胀率的增长,为了使这个分析网络的总成本现值最小,需要增加建立的DC的数量.     

基于客户需求的移动数据产业生态系统研究

围绕移动数据业务的发展,立足于移动数据业务价值网络的研究,从产业生态系统的角度分析了价值网络各环节价值增值的原理.按照马斯洛的需求层次理论,提出了在有效运作客户资源的基础上,对移动数据业务市场需求进行分析的方法.根据移动数据业务的服务对象,对市场需求进行了分类.提出了以移动运营商为核心,包括网络设备供应商、系统集成商、终端设备制造商、内容及服务提供商、虚拟运营商和用户在内的移动数字产业生态系统的基本架构.     

Organizational status growth and structure: An alliance network analysis

Considering the status system emerging from a structure of corporate affiliations, we examine how alliance patterns among firms affect their changing organizational statuses and the structural development of the status system itself. Firm status is conceptually grounded in sociological theories of status and network analysis. The empirical setting we investigate is the network of alliances among firms in the Global Information Sector. The results indicate a negative effect of initial firm status on the growth rate of individual status, which is associated with the different patterns of alliance affiliations among firms with different status levels. Affiliation patterns also affect the extent of variation in the gap between status strata and firm mobility along the status hierarchy. The results highlight the importance of understanding the structural aspects underlying firm status attainment.     

Baby boomers and their entourage

The post-war generation of baby boomers has witnessed major transformations in family life as well as being at the vanguard of them. A study undertaken in Paris and London in 2006 among 90 individuals born between 1945 and 1954 reveals, however, strong relationships with ageing parents and adult children. Family groups based on local or dispersed entourages, with regular contact and the exchange of support, are clearly identified. Other configurations include families where affective ties persist but contact between the baby boomers and their entourage is less frequent. Few baby boomers have replaced family members with friends or remain socially isolated. These results show that the rise of individualism associated with the baby boomers has not weakened inter-generational ties, although tensions exist between the demands of family solidarity and individual projects.     

Motivations for self-assembling into project teams

This study investigates the self-assembly mechanisms of ad hoc project teams using a bipartite network perspective. Individuals and projects are modeled as two types of nodes and team membership as relations between them. This approach enables us to investigate factors that impact voluntary team assembly at the individual, dyadic, and team levels simultaneously. Using Exponential Random Graph Models (ERGM/p*), we study players’ combat teams in a Massively Multiplayer Online Role-Playing Game (MMORPG) as a case of self-assembled project teams. Empirical results show that individuals are motivated to join ad hoc teams to complete difficult projects but not projects with long durations. We also found that individuals tend to collaborate with specific teammates who have complementary skills, those who have similar age or skill level, and those who are affiliated with the same organizational entity.     

Pathways to happiness: From personality to social networks and perceived support

The present study attempts to incorporate individual personality into a social network account of subjective wellbeing (SWB) by proposing and testing a path model in which social relationships (egocentric social networks and perceived social support, PSS) mediate the relationship between personality and SWB. We found that network characteristics (including network size, emotional closeness, and proportion of new contacts) are related to SWB largely via the mediation of PSS. Additionally, network size and proportion of new contacts function as important mediating mechanisms linking extraversion, agreeableness and openness to PSS and SWB.     

思想政治理论课实践教学网络化管理模式研究

本文通过对思想政治理论课实践教学管理模式的研究,构建基于网络运行下的思想政治理论课实践教学管理新模式,即将现代信息技术运用到教学管理中。为确保实践教学各环节实施质量,增强思想政治理论课实践教学实效性提供合理优化的管理新模式。     

论电子数据的公证保全——以网络证据的公证保全为中心

电子数据的保全,要遵循普通证据的保全规则。电子数据的特殊性令其保全方法具有特殊性,主要体现在公证保全上。电子数据的即时性和易逝性对电子数据公证保全的程序提出了较高的要求,尤其是对网络证据的公证保全,其在操作主体、操作环境、操作过程和操作要求等诸方面均有体现。随着电子技术的进一步发展,未来电子数据的公证保全可以建设网络公证中心为基础,发展出一套不同于传统证据公证保全的特殊程序。     

论网络反腐的规约与发展

网络是把双刃剑。网络只是一种手段和工具,网络反腐归根到底还是人借助于网络进行反腐,网络反腐中人的因素较网络本身更为重要。另外,还应当看到网络反腐不仅需要对网络的制度规约,还必须将网络反腐与制度反腐嫁接好。规约和发展网络反腐应着眼于网络的工具性、人本身的素养以及制度的推进等多种因素。     

用社会主义核心价值体系构建高校学生网络道德研究

随着信息时代的到来,高校学生出现了网络滥用、网络侵权等网络失范行为,严重危害了高校学生的身心健康。高校学生网络道德建设成为高校文化建设和思想政治教育的重要领域。本文在分析高校学生网络道德失范表现及成因的基础上,主张用社会主义核心价值体系构建高校学生网络道德,并从其重要意义、构建原则和途径等方面进行了分析阐述,以期在多种合力共同作用下提高高校学生的网络道德水平。