共查询到20条相似文献，搜索用时 46 毫秒
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基于混合目标模糊优选动态规划的动态物流联盟伙伴选择模型 总被引：2，自引：0，他引：2
针对动态物流联盟合作伙伴选择的特点,提出一种将模糊优选理论与动态规划法相结合的合作伙伴选择方法。该方法在二元对比的基础上,确定模糊决策集优越性二元对比矩阵,并结合语气算子,定量标度定性目标的相对优属度。利用两级模糊优选模型,综合计算候选伙伴关于定性与定量目标的相对优属度。基于物流环节的阶段划分,结合动态规划的基本思想,运用决策序列相对优属度总和最大法,求解动态物流联盟合作伙伴的最优化组合。最后,通过实例仿真,验证了该方法的可行性和有效性。 相似文献
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基于模糊决策的制造网络联盟伙伴选择研究 总被引：1，自引：0，他引：1
对制造网络联盟伙伴选择的过程进行了分析,并且介绍了模糊综合决策理论的数学模型和决策过程。在此基础上,采用层次的模糊综合决策模型对制造联盟伙伴的选择进行建模,并举例说明具体的决策过程。解决了制造网络联盟伙伴选择的多层次多因素的决策问题,为辅助联盟伙伴的选择提供支持。 相似文献
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基于模糊AHP的企业技术创新风险评价及决策 总被引：3，自引：1，他引：2
研究了企业技术创新风险的模糊AHP评价及立项决策问题。首先,针对现有层次分析法无法处理模糊信息的不足,将模糊数学的相关概念引入AHP中,用隶属度描述评价专家的判断结果,给出模糊层次分析法的实施步骤;随后,从风险层次结构模型构建、模糊AHP评价和立项决策模式选择三方面,对企业技术创新风险模糊AHP评价及立项决策的基本思路和过程进行说明;最后,通过一个实际企业的技术创新项目立项决策问题验证研究成果并得到有意义的结论。 相似文献
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基于层次分析法和模糊神经网络的战略联盟伙伴选择 总被引：3，自引：0，他引：3
将层次分析法和模糊神经网络技术引入到合作伙伴的优化选择中,提出战略联盟伙伴选择的新方法,以期推动战略联盟能够成功实施并且稳定持续发展。 相似文献
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基于产业技术创新战略联盟运行的全过程(投入、运行和产出过程),将联盟运行绩效评价指标转化为联盟创新主体的效用指标,构建"基于主体效用的产业技术创新战略联盟绩效评价体系",即产业技术创新战略联盟运行绩效综合评价模型。根据评价模型收集了西部地区4个产业技术创新战略联盟涉及的29个创新主体的相关数据,采用Choquet模糊积分评价方法对2014—2016年西部地区产业技术创新战略联盟整体运行绩效进行评价,指出联盟运行过程中存在的共性问题,为后续的联盟运行机制改进提供决策依据。 相似文献
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针对具有优先级和需求特性的产学研合作伙伴选择问题,运用QFD的质量屋模型识别产学研合作伙伴选择的关键指标,据此构建"多阶段—多需求"的合作伙伴选择指标体系;然后,结合具有模糊特性的Vague值改进最大化群体效应—最小化个体遗憾的VIKOR法,实现企业视阈下的产学研合作伙伴选择排序;最后,以某制药企业为例实证研究其合作伙伴选择过程,证明该方法的有效性和可行性。 相似文献
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联盟组合为焦点企业及合作伙伴的发展创造了丰富的成长路径,提高了企业的竞争优势。现有研究对联盟构型网络的结构、资源冗余性、路径联系与"网络效应"之间的关系,缺乏系统性、动态性的分析。本文围绕焦点企业,结合社会网络及纵向案例研究方法以大唐移动TD-LTE联盟组合为研究对象;探讨了联盟组合构型网络形成的动因、演化特征和路径;提炼了联盟组合构型网络动态演化框架。研究表明:联盟组合内的资源异质性与构型网络多样化密切相关。随着构型网络的规模扩大、路径依赖的增加,会导致整体网络效率的下降,收益递减。而不同阶段焦点企业的控制治理策略选择、网络的拓展与重构能有效提高联盟组合"网络效应"。 相似文献
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多元化公司业务组合规划决策问题一直是公司战略关注的重点之一。本文在分析传统决策方法缺陷的基础上,引入母合优势思想,通过运用模糊综合评价法与层次分析法对母合匹配定性分析模型进行量化改造,并结合实例给出了多元化公司业务组合规划决策的模糊综合评价过程。 相似文献
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针对多属性决策中属性难以定量描述的情况,提出一种应用模糊语言信息标度属性值的新方法。该方法运用模糊语言信息评价属性,运用离差最大化原则确定属性权重,运用聚类分析法确定决策专家自身权重,并通过不确定拓展有序加权平均()算子计算各方案的综合属性评估值。算例表明该模型的合理性和有效性,是一种解决多属性群决策问题的有效方法。 相似文献
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A research group led by Prof. ZHAI Qiwei from the Institute for Nutritional Sciences under the CAS Shanghai Institutes for Biological Sciences has discovered that even relatively low doses of resveratrol-a chemical found in the skins of red grapes in red wine-can improve the sensitivity of mice to the hormone insulin according to a report in the October issue of Cell Metabolism.…… 《中国科学院院刊(英文版)》2008,22(1):14-15
Aresearch group led by Prof. ZHAI Qiwei from the Institute for Nutritional Sciences under the CAS Shanghai Institutes for Biological Sciences has discovered that even relatively low doses of resveratrol--a chemical found in the skins of red grapes and in red wine--can improve the sensitivity of mice to the hormone insulin, according to a report in the October,2007 issue of Cell Metabolism. As insulin resistance is often characterized as the most critical factor contributing to the development of Type 2 diabetes, the findings“provide a potential new therapeutic approach for preventing or treating” both conditions, the researchers said. 相似文献
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Marjorie Armstrong-Stassen Margaret Landstrom Ramona Lumpkin 《The Information Society》1998,14(2):153-164
This study examined how students who had no prior experience with videoconferencing would react to the use of videoconferencing as an instructional medium. Students enrolled in seven different courses completed a questionnaire at the beginning of the semester and again at the end of the semester. Students at the origination and remote sites did not differ in their reactions toward videoconferencing but there was a significant difference for gender. Women reacted less favorably to videoconferencing. Compared to the beginning of the semester, students reported significantly less positive attitudes toward taking a course through videoconferencing at the end of the semester. There were no significant differences in students' attitudes toward videoconferencing across courses at the beginning of the semester but there were significant differences across the courses at the end of the semester. The results suggest the need for better preparation for both students and instructors. 相似文献
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A joint study by Prof. ZHANG Zhibin from the CAS Institute of Zoology his co-workers from Norway US Swiss have indicated that historical outbreaks of migratory locusts in China were associated with cold spells suggesting that China's projected climate warming could decrease the pest's numbers. The study was published in Proceedings of the National Academy of Sciences on September .…… 《中国科学院院刊(英文版)》2008,22(1):6-7
Ajoint study by Prof. ZHANG Zhibin from the CAS Institute of Zoology and his co-workers from Norway, US and Swiss have indicated that historical outbreaks of migratory locusts in China were associated with cold spells, suggesting that China＇s projected climate warming could decrease the pest＇s numbers. The study was published in Proceedings of theNational Academy of Sciences on 17 September, 2007. 相似文献
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Active biological molecules functional structures can be fabricated into a bio-mimetic system by using molecular assembly method. Such materials can be used for the drug delivery disease diagnosis therapy new nanodevice construction.…… 《中国科学院院刊(英文版)》2008,22(1):22-22
Active biological molecules and functional structures can be fabricated into a bio-mimetic system by using molecular assembly method. Such materials can be used for the drug delivery, disease diagnosis and therapy, and new nanodevice construction. 相似文献
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Caroline Haythornthwaite 《The Information Society》2001,17(3):211-226
A computer-mediated group is a complex entity whose members exchange many types of information via multiple means of communication in pursuit of goals specific to their environment. Over time, they coordinate technical features of media with locally enacted use to achieve a viable working arrangement. To explore this complex interaction, a case study is presented of the social networks of interactions and media use among members of a class of computer-supported distance learners. Results show how group structures associated with project teams dominated who communicated with whom, about what, and via which media over the term, and how media came to occupy their own communication niches: Webboard for diffuse class-wide communication; Internet Relay Chat more to named others but still for general communication across the class; and e-mail primarily for intrateam communication. Face-to-face interaction, occurring only during a short on-campus session, appears to have had a catalytic effect on social and emotional exchanges. Results suggest the need to structure exchanges to balance class-wide sharing of ideas with subgroup interactions that facilitate project completion, and to provide media that support these two modes of interaction. 相似文献
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《中国科学院院刊(英文版)》2008,22(1):2-3
CAS should stick to the principle of rendering service to, and giving impetus for, the development of China＇s science enterprise by making S＆T innovations, said CAS President LU Yongxiang. The CAS president made the remarks in a recent talk to communicate the gist of the winter session of the Party＇s Leading-member Group at CAS, which was held from 7 to 11 January in Beijing. 相似文献
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Electronic data interchange (EDI) provides means for interorganizational communication, creates network externalities, requires an advanced information technology (IT) infrastructure, and relies on standards. In the diffusion of such innovations, institutional involvement is imperative. Such institutions contain governmental agencies, national and global standardization organizations, local government, and nonprofit private organizations like industry associations. The last type of organizations we call intermediating institutions. They intermediate or coordinate ("inscribe") the activities of a group of would-be adopters. Unfortunately, little is known of how these organizations shape the EDI diffusion trajectory. In this article we examine one specific type of intermediating organizations?industry associations?and how they advanced the EDI diffusion process in the grocery sectors of Hong Kong, Denmark and Finland. We identify six institutional measures, placed into a matrix formed by the mode of involvement (influence vs. regulation) and the type of diffusion force (supply push vs. demand pull), that can be mobilized to further the EDI diffusion. Industry associations were found to be active users of all these measures to varying degrees. Their role was critical especially in knowledge building, knowledge deployment, and standard setting. Furthermore, institutional involvement varied due to policy and cultural contingencies and power dependencies. 相似文献
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《中国科学院院刊(英文版)》2008,22(1)
With great care, Dr. ZHOU Zhonghe takes out a package wrapped by cotton tissue from a drawer and says: "This is the gem of our collections: the fossil of a bird that lived 125 million years ago!" Then, pointing at a tiny mound, he explains: "Look, this is the claw and that is the head. It was in the egg shell and ready to hatch ... The species fell into a family of waterside inhabitants." 相似文献
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Leah A. Lievrouw 《The Information Society》2000,16(2):155-159
This essay focuses on universal service and the Internet as means to support social and political participation. The emphasis on access to telecommunications systems in conventional approaches to universal service is contrasted with access to content. A model of the information environment is described that accounts for the roles of content and conduit, both of which are necessary conditions to achieve true access. A method is outlined for employing information indicators to observe or measure the information environment. 相似文献
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Puay Tang 《The Information Society》1998,14(1):19-31
The increasing prospects of digital piracy has prompted the perceived need by electronic publishers to adopt technical systems of protection, and governments to reform their copyright laws. This article is a preliminary study of the management of intellectual property by electronic publishers, defined as those involved in the production of online databases, and CD-ROMs. It focuses on three main issues: (1) how electronic publishers view the increasing threat of piracy; (2) the methods of protection employed to protect intellectual property in digital format; and (3) the importance of technological protection of intellectual property in electronic publications. The analysis is based on a sample of 23 UK electronic publishers. The interviews revealed an interesting assortment of protection methods and did not show that technological protection was a preferred way. Instead, the means of protection, in addition to copyright law, comprised niche markets, pricing, trust, bad publicity, and nontechnical and technical means. 相似文献