苏南乡镇民营产业集聚水平测度及其经济增长贡献度分析

苏南乡镇民营产业集群是在原有乡镇企业的基础上不断壮大和发展起来的,由于整体实力较强,发展快速,对乡镇经济发展的推动作用尤为显著。文章对苏南乡镇民营产业集群的集聚水平进行了测度,并从产业集聚对经济增长的拉动作用、乡镇民营产业集群的经济效益和乡镇民营产业集群投入要素贡献率等几个方面对苏南产业聚集对经济增长的贡献进行了分析,得到了一些有益的结果和结论。从而对本区域乃至全国同类地区产业集群的进一步发展有一定的借鉴作用。     

养老保险统筹层次收入再分配理论研究

基础养老保险全国统筹层次的实施,具有养老保险给付收入再分配性质和功能。文章提出养老保险统筹层次收入再分配理论架构,包括养老保险统筹层次收入再分配功能;养老保险统筹层次收入再分配生存公平和劳动公平;养老保险统筹层次收入差距与收入再分配系数联动;养老保险统筹给付适度水平检验,等等。这四个相互关联的理论要素,构成了养老保险统筹层次收入再分配理论框架。养老保险统筹层次的收入再分配理论,是养老保险统筹层次选择、养老保险统筹模式设计的基本理论依据,也是政府部门制定养老保险统筹方案的重要逻辑线路和政策依据。     

Economic design of acceptance sampling plans for truncated life test using Frechet distribution

In this article designing of acceptance sampling plans for the truncated life test is proposed using economic approach by assuming that the lifetime of a product follows Frechet distribution based on median. The optimal sampling plans to meet the consumer’s confidence level with minimum total cost are designed. Efficiency of the proposed plan is also analyzed.     

基于《论语》视角的高校基层管理人员自我价值感的提升

高校基层管理人员自我价值感的状况,直接地影响着这个群体潜能的发挥和工作绩效的提高。目前,对部分高校基层管理人员来说,工作的事务性、程序性和职位与职称晋升的障碍使自我价值感降低。运用《论语》中的相关心灵策略,树立远大的职业理想,正确客观地认识自己,培育从容的平和心态,可一定程度上提高自我价值感。     

A Lower Bound for the Wrap-around L2-discrepancy on Combined Designs of Mixed Two- and Three-level Factorials

The objective of this article is to study the issue of employing the uniformity criterion measured by wrap-around L₂-discrepancy to assess the optimal foldover plans. For mixed two- and three-level fractional factorials as the original designs, general foldover plan and combined design under a foldover plan are defined, and the equivalence between any foldover plan and its complementary foldover plan is investigated. A lower bound of wrap-around L₂-discrepancy of combined designs under a general foldover plan is obtained, which can be used as a benchmark for searching optimal foldover plans. Moreover, it also provides a theoretical justification for optimal foldover plans in terms of uniformity criterion.     

中国情境下中层管理者的适应性绩效因素研究

随着我国经济的快速发展和外部竞争的加剧,出现了组织扁平化、企业内外部变化加快和职业高原等新情形,既给中层管理者带来了新困境,也对其适应性提出了新挑战。以Plukos八维度适应性绩效模型为基础,立足国内情景,运用改进型DEMATEL方法对适应性绩效影响因素进行定量分析,得出影响中层管理者适应性绩效的关键因素,并对各因素重要性进行了排序和分析。     

基于突变理论的铀矿山循环经济发展水平评价

铀矿山循环经济发展是铀矿开采的必然选择,铀矿山循环经济发展水平评价是检验和预测循环经济发展状态的判断依据。基于突变理论的改进的突变评价方法,构建了铀矿山循环经济发展水平的评价指标体系,并选取我国核工业某矿冶局所属的5个铀矿山作了铀矿山循环经济发展水平评价的实证分析。实证分析表明了该方法的可行性、有效性和可靠性。这对于铀矿企业处理资源有效利用和环境保护问题,实现经济效益和社会效益协调统一具有理论和现实意义。     

An Exposure Assessment of Methyl Mercury via Fish Consumption for the Japanese Population

The objective of this article was to propose an exposure assessment model to describe the relationship between fish consumption and body methyl mercury (MeHg) levels in the Japanese population. Individual MeHg intake was estimated by the summation of species-specific fish consumption multiplied by species-specific fish MeHg levels. The distribution of fish consumed by individuals and the MeHg level in each fish species were assigned based on published data from Japanese government institutions. The probability of MeHg intake for a population was accomplished through a Monte Carlo simulation by the random sampling of fish consumption and species-specific MeHg levels. Internal body MeHg levels in blood and hair were estimated using a one-compartment model. Overall, the mean value of MeHg intake for the Japanese population was estimated to be 6.76 μg/day or 0.14 μg/kg body weight per day (bw/day), while the mean value for the hair mercury level was 2.02 μg/g. Compared with the survey data that tabulated hair mercury levels in a cross-section of the Japanese population, the simulation results matched the hair mercury survey data very well for women, but somewhat underestimated for men and all of the population. This exposure assessment model is a useful attempt at further risk assessment with respect to a risk-benefit analysis.     

建设工程项目筹资结构优化

工程项目建设 ,必须要有足够的资金支持 ,面对庞大的资金需求 ,可以从资本市场上寻求投资资金 ,因而如何使筹资结构优化便成为一个重要问题。从筹资方式选择入手 ,分析几种常见筹资手段的特点 ,从中寻求最优筹资结构组合 ,力求避免目前筹资结构单一 ,筹资决策盲目性等问题     

中印产业内贸易发展水平的指数分析

通过对1993—2009年中印产业内贸易指数的测算,分析中印产业内贸易的发展演变过程和水平,并根据中印两国贸易不平衡的实际情况计算了调整后的产业内贸易指数,从而得出简要的研究结论。