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1.
农业及农产品在我国有着举足轻重的地位和作用,对农产品供应链的科学管理将有助于解决农产品生产、销售等环节中存在的诸多问题。本文对国内外应用系统动力学的方法研究农产品供应链的文献进行了分析和总结。 相似文献
2.
在考虑农产品质量安全、增值服务等现实要求下,根据"供应链管理三足鼎立"理论,提出基于全面管理结构的农产品供应链竞争力评价指标体系;随后基于可拓学理论,使用可拓方法中的优度评价法为农产品供应链竞争力建立评价模型;并运用案例分析将该评价模型的等级波动,验证所建模型的有效性和先进性。 相似文献
3.
发展订单农业,对于提高农业市场化程度,增加农民收入,调整农业结构,促进农业产业化经营等具有重要意义。然而,由于农业订单从签约到履约有一段生产周期,在运行过程中面临诸多风险,如果没有一套风险防范、转嫁机制来分散和化解风险,履约方的损失将是巨大的,订单农业也难以为继。 相似文献
4.
发展订单农业，对于提高农业市场化程度，增加农民收入，调整农业结构，促进农业产业化经营等具有重要意义。然而，由于农业订单从签约到履约有一段生产周期，在运行过程中面临诸多风险，如果没有一套风险防范、转嫁机制来分散和化解风险，履约方的损失将是巨大的。订单农业也难以为继。 相似文献
5.
农产品供应链是降低农产品物流成本,保障农产品质量安全的有效管理模式。通过分析农产品供应链的特征,探索以农产品生产企业、加工企业、批发市场运营商和连锁超市为核心企业的供应链运作模式,建议从植入绿色理念、强调准入机制、完善利益共享机制等方面实施农产品供应链管理。 相似文献
6.
农产品供应链在发达国家是物流业中发展最早的供应链模式,但在我国尚处于建设的初级阶段,还有许多问题需要解决。本文分析了农产品供应链管理中出现的问题,指出了中国农产品供应链管理的模式,并给出了构建农产品供应链的相关对策。 相似文献
7.
在考虑农产品质量安全、增值服务等现实要求下,根据“供应链管理三足鼎立”理论,提出基于全面管理结构的农产品供应链竞争力评价指标体系;随后基于可拓学理论,使用可拓方法中的优度评价法为农产品供应链竞争力建立评价模型;并运用案例分析将该评价模型的等级波动,验证所建模型的有效性和先进性。 相似文献
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9.
中间商对生鲜乳供应链的影响研究 总被引：2，自引：0，他引：2
中间商从生产和交易的分工中产生,在具有买方垄断性质的农产品市场上,它们不仅改变了农产品供应链的收益分配格局,还改进了农产品供应链的绩效.本文通过分析奶站的定价机制及其对生鲜乳市场社会福利的影响证实了这一观点.研究还表明,农产品中间商尽管能降低农产品市场的福利损失、减少企业与农户之间的交易费用,但却使农户处于较低的盈利水平和较高的"被剥削"状态.因此,建议政府在重视效率的同时应兼顾公平,即在鼓励和支持农产品中间商发展的同时,规范其经营行为,改善农民的盈利状况,使农民进一步享受市场化带来的福利. 相似文献
10.
农产品供应链研究现状及展望 总被引：4，自引：0，他引：4
在回顾农产品供应链研究发展的基础上,对目前农产品供应链管理的几个热点问题,包括物流管理、信息管理、供应链整合的研究现状进行了系统总结,最后结合农产品供应链所处的现代环境,指出了未来农产品供应链研究的三个热点问题,即绿色农产品供应链、敏捷农产品供应链和基于电子商务的农产品供应链。 相似文献
11.
《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
12.
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
13.
《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
14.
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
15.
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
16.
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
17.
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
18.
Milton Mueller 《The Information Society》2001,17(3):151-163
Long-standing conflict between domain name registrants and trademark holders prompted the Internet Corporation for Assigned Names and Numbers (ICANN) to create a global, mandatory arbitration procedure known as the Uniform Dispute Resolution Policy (UDRP). The UDRP has been used in 2166 cases involving 3938 domain names as of 1 November 2000. The policy gives the initiator of a complaint, generally a trademark holder, the right to choose which ICANN-accredited dispute resolution service provider (RSP) will handle the case. During the preparation of the UDRP,some feared that complainant selection would lead to "forum shopping" that might bias the results. This article performs a statistical assessment of the forum-shopping thesis and finds support for it. There are statistically significant differences in the various RSPs' propensity to take away names from defendants; there are also major differences in the number of cases brought to each RSP. RSPs who take away names have the larger share of cases. The study examines other variables that might explain differences in market share, such as price, the plaintiff's nationality, or the time taken to decide a case. It finds that nationality and time also are correlated with market share. The study concludes that shopping for a favorable outcome is an important factor in the UDRP. 相似文献
19.
Prof. Raymond C.K. Chen a neuropsychologist with the CAS Institute of Psychology has made novel progress in his studies of schizophrenia. His work has been reported by a recent issue of Behavioural Neurology.…… 《中国科学院院刊(英文版)》2008,22(1):15-15
Prof. Raymond C.K. Chen, a neuropsychologist with the CAS Institute of Psychology, has made novel progress in his studies of schizophrenia. His work has been reported by a recent issue of Behavioural Neurology. 相似文献
20.
Prof. SUN Changpu from the CAS Institute of Theoretical Physics coworkers from University of Basel in Switzerland have worked out a way - at least in theory - to split a beam of molecules according to their chirality. The technique involves passing the molecules through three different laser beams is similar to the famous Stern-Gerlach effect whereby a beam of atoms passing through a magnetic field is split in two according to the atoms' spin states 《中国科学院院刊(英文版)》2008,22(1):23-23
Prof. SUN Changpu from the CAS Institute of Theoretical Physics and coworkers from University of Basel in Switzerland have worked out a way --at least in theory --to split a beam of molecules according to their chirality. The technique involves passing the molecules through three different laser beams and is similar to the famous Stern-Gerlach effect, whereby a beam of atoms passing through a magnetic field is split in two according to the atoms＇ spin states （Phys. Rev. Lett. 99 130403）. 相似文献