国际关系研究的定量数据库及其应用

国际关系研究者经常面对一些需要运用数据进行比较、检验或支持的问题。对于试图采用定量研究方法的研究者而言,如何获取和使用研究所需的数据是研究过程中面对的第一个难题。作者将国际关系定量数据库分为冲突数据、国际经济政治地理数据、组织数据和调查数据等几种主要类型,它们涵盖国际政治经济、冲突或冲突过程、国际组织、对外政策分析、民主化、族群政治、发展、环境研究、和平研究等大部分国际关系研究领域。在对这些数据库的主要用途、特征、使用方法以及最新相关研究成果进行介绍的基础上,作者认为,为了最大限度地利用已有数据,研究者需根据研究目的和问题选择最合适的数据,尽可能使用不同数据来进行假设检验,同时在分析使用数据时需要注意数据的测量层次问题。     

“两税合一”对广东省外资企业税负与利用外资的影响

我国新颁布的企业所得税法实现了内外资企业所得税税率的统一。"两税合一"的实施,将使广东外资企业的整体税负因税收优惠减少而趋于增加。但历年改革开放成果的积累及良好的区位优势,使广东在吸引外资方面仍然具备相当强的竞争优势。可以乐观地预期,"十一五"期间广东利用外资仍将持续增长,并保持在全国的领先地位,但引资格局将发生一定的变化。     

基于粗集理论的战略联盟合作伙伴选择研究

粗集理论是一种新兴的数据处理方法,在许多研究领域已得到了应用。在对粗集理论进行深入研究的基础上,探讨了其在战略联盟合作伙伴选择中的应用并总结出相应的决策规则,为企业选择战略联盟合作伙伴提供参考。     

安徽省区域物流中心选择的实证研究

区域物流中心的选择是一个热点问题,文章运用粗糙集方法对安徽省区域物流中心的选择进行了实证研究,并选取邮政业务量、交通运输仓储和邮政业基建投资、经济情况、交通条件四个因素作为评价标准,通过计算,最后得到的选择结果与安徽省区域物流中心城市的"十一五"规划布局基本一致.实证研究表明,用粗糙集方法选择区域物流中心,不失为一种有效的方法.     

Dynamically stable sets in infinite strategy spaces

Evolutionary game theory has largely focused on finite games. Dynamic stability is harder to attain in infinite strategy spaces; Bomze [Bomze, I., 1990. Dynamical aspects of evolutionary stability. Monatsh. Math. 110, 189–206] and Oechssler and Riedel [Oechssler, J., Riedel, F., 2001. Evolutionary dynamics on infinite strategy spaces. Econ. Theory 17, 141–162] provide conditions for the stability of rest points under the replicator dynamics. Here, conditions are given for the stability of sets of strategies under this process.     

FANUC数控系统车床G73功能参数选择

本文针对现在的教材和文章仅对G73指令格式进行阐述,未对指令功能参数进行详细讲解,参数选取方法不明确的问题进行分析,解决参数选取不当造成的首次空切或过切的问题,对学习者起到正确的指导作用。     

Bi-criteria solid transportation problem with substitutable and damageable items in disaster response operations on fuzzy rough environment

Successful planning and scheduling of relief operations play a key role in saving lives and reducing damage in disasters. These disaster operations involve a variety of challenging multi-objective optimization problems, for which soft computing methods are well suited. In this investigation, relief materials and human resources are transported from some distribution centers (DCs) to some delivery points (DPs) through conveyances. The objectives are to minimize both total cost and time for transportation. Some particular models for (a) substitutable items (b) damageable items and (c) safety Factor have been derived. To convert bi-criteria solid transportation problem into a single objective problem, three different techniques (i) Fuzzy interactive satisficing method, (ii) Global Criterion Method and (iii) Convex Combination Method are used. Then the reduced single objective problem is solved by a non-linear optimization technique – Generalized reduced gradient method using LINGO-14.0. The models are illustrated through some numerical examples and optimal results are presented in tabular forms.     

Understanding the decision rules for 3D printing adoption

ABSTRACT

While 3D printing is a radically different manufacturing method based on advanced technologies, it has not been adopted to-date with as much alacrity as was originally expected. A variety of hidden rules may influence the broad adoption of this novel technology. The purpose of this study is to explore the decision rules for 3D printing adoption from an organisational perspective. Hybrid approaches are proposed to integrate the technology-organisation-environment (TOE) framework and the rough set theory (RST) in order to generate the decision rule and the determinants for 3D printing adoption. An empirical study on manufacturing enterprises in Taiwan is subsequently carried out, with the results revealing a considerable amount of meaningful information that may therefore be useful in the context of management.     

基于粗糙集和模糊聚类的评价方法研究

利用模糊聚类的方法实现连续性指标值的离散化,对分析对象进行分类以获取指标的粗糙数,应用粗糙集约简方法生成约简的指标集并确定指标属性的权重以对其进行综合评价。这种新的评价方法将RS和模糊聚类有机地融合起来,可以充分发挥两种方法的各自优势。最后通过上市公司业绩评价实例验证了此方法的实用性。     

基于粗糙集的供应链合作伙伴选择

分析了供应链合作伙伴选择的目标和程序,建立了一套新的供应链合作伙伴选择指标评价标准体系,并提出了基于粗糙集理论的供应链合作伙伴选择模型。最后应用该模型计算了一个具体实例。计算结果表明该模型可以合理调整权重和克服传统评价方法中存在的主观因素影响,能够对供应链合作伙伴做出全面、具体和客观的评价。