基于模糊控制的蓄电池快速充电系统

介绍了基于模糊控制原理的蓄电池充电控制技术 ,它实现了对复杂蓄电池充电过程的智能控制和最优控制 ,大大提高了充电系统的性能和工作效率。     

基于TOPSIS方法的红色旅游绩效评价——以领袖故里红三角为例

根据国家发展红色旅游的目的、旅游绩效的特征和利益相关者理论,红色旅游绩效评价指标体系主要包括旅游投资、景区员工人数、旅游资源品位、旅游人数、旅游收入、游客满意度、教育效果等要素;运用极值法和变异系数法对指标进行处理,选择TOPSIS法建立评价模型,以领袖故里红三角红色旅游绩效的评价为例,认为评价方法适用而且有效.     

Anonymous social influence

We study a stochastic model of influence where agents have “yes” or “no” inclinations on some issue, and opinions may change due to mutual influence among the agents. Each agent independently aggregates the opinions of the other agents and possibly herself. We study influence processes modeled by ordered weighted averaging operators, which are anonymous: they only depend on how many agents share an opinion. For instance, this allows to study situations where the influence process is based on majorities, which are not covered by the classical approach of weighted averaging aggregation. We find a necessary and sufficient condition for convergence to consensus and characterize outcomes where the society ends up polarized. Our results can also be used to understand more general situations, where ordered weighted averages are only used to some extent. Furthermore, we apply our results to fuzzy linguistic quantifiers, i.e., expressions like “most” or “at least a few”.     

Valuation of Landmass Degradation Using Fuzzy Hedonic Method: A Case Study of National Capital Region

A Hedonic model to determine the revealed willingness to pay for landmass of different suitability classes, based on landmass functional characteristics obtained through subjective assessments, is developed for the National Capital Region in India. The inherent non-specificity involved in subjective evaluation is minimized using fuzzy logic based regression technique. The proposed fuzzy regression involves regression using central values of triangular fuzzy number and minimization of non-specificity using linear programming. The revealed willingness-to-pay for landmass of different suitability classes is used for valuation of disbenefits due to urban expansion on landmass of different agricultural suitability classes in National Capital Territory of Delhi. Appropriate pricing policies to prevent the future inappropriate landuse practices are developed using the landmass valuation.     

考虑风险因素的第三方物流企业合作伙伴选择研究

在考虑风险因素的前提下研究了第三方物流企业合作伙伴的选择问题。首先提出了考虑风险因素的合作伙伴选择指标体系,其次采用层次分析法和模糊TOPSIS法相结合的综合方法对物流企业合作伙伴进行选择,最后通过案例验证了该方法的合理性。     

The impact of market freedom on the adoption of third-party electronic marketplaces: A fuzzy AHP analysis

Electronic-marketplace (EM) is an innovative model for interfirm transactions that are undertaken via the Internet. However, in view of higher investment costs and other associated risks, many small and medium-sized enterprises (SMEs), instead of establishing their own EMs, turn to adopt third-party-hosted EMs. In literature, most relevant studies to the adoption of the third-party-hosted EM were conducted on the research contexts of free market. Industries under the protection of government policies may have limited degree of market freedom, different from industries without these protection policies. Thus, this study intends to compare the decision choice of EM adoption between industries with various degree of market freedom. The decision choice of EM adoption consisted of many strategic factors that were constructed in terms of a three-layer hierarchical structure proposed in this paper. A fuzzy analytic hierarchical process (Fuzzy AHP) was utilized to estimate the relative importance of these individual strategic factors involved in the decision-making process of adopting third-party EMs. The research findings indicated there were some similarities and differences in the decision choice between the two industries of interest. The variety of market freedom can account for the differences in the decision choice of EM adoption. In addition to enhancing our understanding of the EM adoption decision of participative companies, the research findings also provide insightful information to third-party EM providers so that they may improve the effectiveness and efficiency of resource allocation.     

电子商务企业配送中心选址评价指标体系及模糊综合评价

电子商务环境下的物流配送中心选址涉及到多方面的因素,是一项复杂的系统工程。在建立选址模型时,很难将选址中的所有影响因素考虑周全,即使把这些因素考虑全面,也很难量化形成模型中的约束条件。所以,在进行电子商务环境下的物流配送中心选址时,应咨询和参考各相关专家的意见和建议,进行定性的选择。因此,提出模糊综合评价法来确定电子商务环境下配送中心选址方法。     

中国城市：金融中心的定位研究

近年来，国内外城市在定位金融中心方面竞争十分激烈。本文在评论金融中心定位相关文献后，提出金融中心定位的竞争力理论和具体定位思路及方法。在利用模糊曲线模型对金融中心定位的假设进行经验验证时发现，影响金融功能的因素根据重要程度依次为：国内外金融资本数量、国际金融产业聚集、科技竞争优势、经济区位便利度、生活环境优势、国内金融产业聚集、金融业人才规模、法制健全程度、科技产业发展、航空基础设施状况等。利用相关方法计量出中国43个主要城市的金融功能竞争力指数，根据指数大小大致判断：上海、北京为全国性金融中心；广州、青岛、厦门、武汉、大连、重庆、西安可定位为区域性金融中心。这些结论有的验证了目前理论和实践界的定性判断，有的则对目前理论界和实际部门的定性判断提出了挑战。因此，本文的方法和结论对于金融中心定位具有重要的方法论意义和决策参考意义。