钢铁生产物流工艺过程监测与控制系统设计与实现

文章运用生产物流管理的思想和方法,阐释钢铁生产物流工艺过程的特点、监控的问题和原因,提出建立物流仿真系统和物流自动化技术设计方案,有效实现钢铁生产物流工艺过程的监测与控制手段,对现代钢铁生产物流工艺过程的科学管理具有重要的指导价值。     

社会资本与农村社区生态环境保护

社会资本是农村生态环境保护的基石,它可以打破生态环境保护中的“囚徒困境”,促使人们遵守生态环境保护的相关规则,解决人们在生态环境保护中的利益冲突,以及抵御外来污染转嫁。当前,由于城市化进程的加快以及市场、政府力量等向社区的渗透,我国农村社区中社会资本正面临流失的危险,这是农村生态环境恶化的重要原因。社会资本流失只是一种暂时现象,它可以在现代农村社区中得以重构与再生,这种重构与再生,沿袭的是一种价值理性与工具理性相结合的路径。     

INSTABILITY AND THE INCENTIVES FOR CORRUPTION

We investigate the relationship between corruption and political stability, from both theoretical and empirical perspectives. We propose a model of incumbent behavior that features the interplay of two effects: a horizon effect , whereby greater instability leads the incumbent to embezzle more during his short window of opportunity, and a demand effect , by which the private sector is more willing to bribe stable incumbents. The horizon effect dominates at low levels of stability, because firms are unwilling to pay high bribes and unstable incumbents have strong incentives to embezzle, whereas the demand effect gains salience in more stable regimes. Together, these two effects generate a non-monotonic, U-shaped relationship between total corruption and stability. On the empirical side, we find a robust U-shaped pattern between country indices of corruption perception and various measures of incumbent stability, including historically observed average tenures of chief executives and governing parties: regimes that are very stable or very unstable display higher levels of corruption when compared with those in an intermediate range of stability. These results suggest that minimizing corruption may require an electoral system that features some re-election incentives, but with an eventual term limit.     

Materialism and Life Satisfaction: The Role of Stress and Religiosity

Materialism has been a topic of interest to consumer researchers for decades. This article explores the effect of materialism on individuals' life satisfaction using a large sample from Malaysia, a country with cultural diversity within a collectivist mainstream culture. The results suggest that the effects of materialism on life satisfaction could be indirect, mediated by stress and moderated by religiosity. The study helps to explain the mechanisms that account for the negative relationship between materialism and life satisfaction reported in previous studies conducted in many countries; it provides a blueprint and directions for further research.     

考虑碳排放因素的车辆路径问题研究

将碳排放因素考虑到车辆路径问题中,建立了运输成本与碳排放相结合的多目标车辆路径问题模型,讨论了基于改进遗传算法的车辆路径问题的设计和实现,最后通过实例分析对模型作了进一步验证.