供应商管理库存环境下的合作合约

为了克服信息扭曲和牛鞭效应,许多企业采用了供应商管理库存。由于利益和激励机制的冲突：一方面,销售商为了提高服务水平,希望供应商在仓库中多存货;另一方面,由于库存剩余的风险,供应商不愿在仓库中多存货,供应商管理库存环境下,双边际效应同样存在。本文在需求是随机时研究供应商管理库存的协调与合作问题,提出几个使供应链达到合作的合约。     

浅析杰克·伦敦小说《铁蹄》中的“二元视角”

杰克·伦敦的小说《铁蹄》因其表现革命主题而在文学史上享有很高的地位。评论界在抬高作品革命主题的同时,却贬低了作品的艺术价值,忽视了二元视角叙事模式的运用,从而也影响了对作品主题的理解和认识。因此,为了更进一步理解该作品的思想价值和艺术特征,对作品中二元视角叙事模式做出研究是相当必要的。。     

宽带数字接收机的高效FPGA设计

在FPGA中实现了一种高效的宽带数字接收机,采用坐标旋转数字计算机算法实时产生数控振荡器数据,提高了接收机设计的灵活性。二次变频的接收机结构和四倍抽取的多相滤波结构减少了接收机的运算量,降低了接收机的资源消耗。FPGA中的仿真结果证明了该方法的高效性和实用性。     

Repetitive group sampling plan based on the process capability index for the lot acceptance problem

An acceptance sampling plan is a method used to make a decision about acceptance or rejection of a product, based on adherence to a standard. Meanwhile, process capability indices (PCIs) have been applied in different manufacturing industries as capability measures based on specified criteria which include process departure from a target, process consistency, process yield and process loss. In this paper, a repetitive group sampling (RGS) plan based on PCI is introduced for variables’ inspection. First, the optimal parameters of the developed RGS plan are obtained considering constraints related to the risk of consumers and producers and also a double sampling plan, a multiple dependent state sampling plan and a sampling plan for resubmitted lots have been designed. Finally, after the development of variable sampling plans based on the Bayesian and exact approach, a comparison study has been performed between the developed RGS plan and other types of sampling plans and the results are elaborated.     

Battling the Tiger Mother: Pre‐School Reform and Conflicting Norms of Parenthood in Singapore

This article explores pre‐school reform and shifting norms of parenthood in Singapore. Whereas current education reforms in many Western countries focus on improving academic performance, pre‐school reform in Singapore de‐emphasises academic learning and urges parents to adopt ‘relaxed’ parenting practices. Analysing the position of parents in this process, we show, however, that the outcomes of this reform project are highly ambivalent. Reform makers view parents’ mindset as the main obstacle to reform, while parents experience pre‐school reform itself as prompting inconsistent messages. To account for the disorientation that this creates among parents, we draw on Bateson's concept of double bind.     

Conditional residual lifetimes of coherent systems under double monitoring

In this paper, we obtain a mixture representation for the reliability function of the conditional residual lifetime of a coherent system with n independent and identically distributed (i.i.d.) components under double monitoring. We suppose that at time t₁, j components have failed while at time t₂ the system is still alive. Based on these mixture representation, we then study stochastic comparisons of the conditional residual lifetimes of two coherent systems with independent and identical components.     

Improvement over variance estimation using auxiliary information in sample surveys

This paper addresses the problem of estimating the population variance S²_y of the study variable y using auxiliary information in sample surveys. We have suggested a class of estimators of the population variance S²_y of the study variable y when the population variance S²_x of the auxiliary variable x is known. Asymptotic expressions of bias and mean squared error (MSE) of the proposed class of estimators have been obtained. Asymptotic optimum estimators in the proposed class of estimators have also been identified along with its MSE formula. A comparison has been provided. We have further provided the double sampling version of the proposed class of estimators. The properties of the double sampling version have been provided under large sample approximation. In addition, we support the present study with aid of a numerical illustration.     

保荐人制度对企业上市的影响研究——基于创业板视角

本文以2009年10月30日至2010年6月30日在创业板上市的90家上市公司为研究样本,对比了上市公司在上市前与上市后的经营业绩,由此指出在创业板开市一年多以来,上市公司未能像市场预期那样实现持续的高增长,与保荐人制度存在的问题密切相关,并根据分析出的问题提出了相应的完善创业板保荐人制度的措施。     

双导制下创新型人才培养模式的探索与实践

本科生导师制是国内高校积极探索的一种新型人才培养模式,基于中国与西方教育现状的差距,国内高校导师制的实施应独具特色。针对国内导师制存在的师生比过大、教师科研和教学工作任务繁重等现状,提出了双导制创新型人才培养模式。双导制创新型人才的培养采用独具特色的运转模式和运转体系,能够弥补当前国内本科生导师制实施过程中的部分缺陷,使本科生导师制更加高效的运作,能够有效的调动教师和学生的积极性,提高学生的创新能力、实践能力、科研能力、专业素养和综合素质。     

Polanyi’s two transformations revisited: a ‘bottom up’ perspective

ABSTRACT

In The Great Transformation, Karl Polanyi offers a ‘top-down’ analysis of the rise and demise of Europe’s unregulated market system. He assumes that changes in the organization of the international economy provide particular kinds of opportunities for states to act which, in turn, shapes the extent to which social forces will be able to influence state policy. Consequently, his analysis focuses, first, on the international institutions created by the self-regulating market system; then on the ‘liberal state’ which these made possible; and finally on how the system impacts ‘society as a whole’. The account which this analysis produces systematically underplays the social struggles which propelled and emerged from the rise of Europe’s nineteenth century system and which ultimately led to its demise. In revisiting the two periods that are the focus of Polanyi’s analysis, this article assumes that states and interstate systems reflect the interests of powerful social forces. Thus, working from the ‘bottom up’, it focuses on the class interests that produced Europe’s market system, the state and international structures which reflected and supported them, and the social struggles that ultimately brought about the collapse of the system. What this ‘bottom up’ account reveals is the centrality of a ‘double movement’, not of market expansion and a protective countermove on the part of ‘society as a whole’, but of dominant classes monopolizing economic opportunities from global expansion, and a rising ‘red tide’ of disaffected workers. This double movement, it argues, better explains the demise of the system and the changes that ensued from it.