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1.
蒋小钰 《科技广场》2012,(10):217-223
本文依据对中国甜菊糖产业的分析,提出了一个基于"ZRF法甜叶菊综合利用新工艺"的我国甜菊糖产业整合新方式——竞合方式:以新工艺设备投资和技术服务为投入,与我国现有的甜菊糖生产加工和销售企业进行合资合作,将新工艺的技术优势与现有的甜菊糖生产加工和销售企业的资金和渠道优势互补低成本迅速联合扩张,形成我国甜菊糖产业的"托拉斯",提高产业集中度,完成我国甜菊糖产业整合。  相似文献   

2.
比惨     
《科学与文化》2007,(7):48-48
中国人好像历来都是在苦水中泡大的,大凡见面就要比惨。如果是几个学生见面,一个说功课累,另一个绝对不会说学习轻松。如果是成人见面,这个说:“哎,  相似文献   

3.
科教兴国     
《科学中国人》2007,(4):9-11
全国政协委员、中国科技大学校长朱清时:中国教育最大的弊病是高考指挥棒,使得中小学教育变得很极端,素质教育根本没法进行。学生只关心高考的课程怎么得高分,而不理解这些功课的内容、实质,孩子的全面才能都被扼杀了。如果高考不改革,素质教育就是空话。  相似文献   

4.
孙才志  刘乐 《资源科学》2011,33(1):56-63
基于经济学中的边际思想,运用全分解模型计算出1997年-2007年中国以及31个地区(台湾、香港和澳门除外)产业用水的规模边际、技术边际与结构边际,分析了中国产业用水边际效应的时空分异规律;通过构建产业用水增长质量指数,分析了中国产业用水增长质量的时间分异特征,运用Gini系数、Theil指数分析其空间分异特征。结果表明:研究期内,中国产业用水增长质量在总体和局部都呈现提升的态势,但提升速度存在明显差异,产业用水增长质量总体差异在逐年增大,在总体差异的组成中,东部、中部、西部地区间和东部地区内部差异贡献比例较大。导致中国产业用水增长质量指数存在差异的最重要因素是各地区经济发展水平的不同。为此,平衡经济发展,适当加大中西部地区水资源利用与管理投资力度,是全面提升产业用水增长质量,缩小地区差异的关键所在。  相似文献   

5.
产业网络的复杂性研究与实证   总被引:16,自引:1,他引:16  
本文从复杂网络的角度提出了产业网络的三个层次的复杂性水平:要素、联系和系统动力学。通过对三个层次复杂性水平的分析得到,企业在产业网络中的地位是不同的,而且产业网络是一个具有无标度特性的复杂网络。本文还给出了产业网络的宏观和微观系统动力学模型,同时应用中国半导体产业网络对复杂性进行了实证。最后,得出结论:成员之间联系的本质和动态特性是产业网络复杂性的关键方面。  相似文献   

6.
研究在新一轮的竞争中中国工业物联网产业该如何定位以避免重蹈IT产业低附加值率的覆辙.运用独立开发的TIVC(Technical Chain,Industrial Chain,Value Chain and Competitiveness,“三链一力”)产业选择模型,从技术链、产业链、价值链3个维度分析工业物联网产业,最终聚焦到中国在工业物联网产业的竞争力.研究得到的结论是:中国工业物联网产业应定位于以基础技术平台为核心的高端服务业,并以此带动基于基础技术平台的系统集成、应用方案提供、各种第三方软件开发等产业的发展.  相似文献   

7.
王铮  何琼  谢书玲  陈建国 《科研管理》2007,28(2):105-111
新经济产业已成为中国产业发展的重点和着眼点,本文归纳总结了中国各区域提出的新经济产业发展动向。为验证各区域新经济产业发展动向的合理性,本文运用区位商分析现阶段我国高技术产业的区域发展情况,结合中国各区域的实际发展情况进一步验证各区域高技术产业发展动向的可行性。分析表明:目前各省市自治区提出发展的新经济产业并不完全符合自身的比较优势。  相似文献   

8.
以德温特创新索引数据库为数据源,运用专利地图法,对机器人产业全球专利申请趋势、主要国家以及重点创新机构的技术研发领域和专利布局进行分析。分析结果显示:日本、美国是世界机器人技术的主导者和引领者,中国近年来发展迅猛,但关键核心技术还很缺乏;机器人跨国公司均重视全球市场的专利布局,中国是全球热点竞争区域,国外机构在我国申请的专利已近中国专利总量的50%。最后建议中国应尽快制定机器人产业知识产权发展战略,提高产业核心竞争力。  相似文献   

9.
在对中国电子及通信设备制造业价值链构成与地位分析的基础上,深入剖析国内该产业市场主体结构与发展动力,进而创新性地从产业价值链与区域联动发展双重视角提出中国电子及通信设备制造业升级模式,并以京津冀地区为例,论述其产业联动发展与升级对策。研究发现:中国电子及通信设备制造业整体上处于全球价值链的低端,四大产业市场主体对于不同区域的贡献差异较大。就区域产业升级动力而言,一是产业市场主体构成与外部升级环境要素的诱导,二是本土企业的自我强化与学习创新。从长远来看,打造产业公共平台、成立配套服务机构和构建产业园区是支撑区域电子及通信设备制造业联动发展与升级的重要举措。  相似文献   

10.
动漫产业是文化创意产业的核心支柱之一,动漫产业集群的培育模式是动漫产业经济发展的要求,并且对动漫产业集群的建立、发展和壮大具有重要意义.首先将产业价值链理论引入到动漫产业集群的形成过程,进而分析基于产业价值链的动漫产业集群所具有的竞争优势、基于产业价值链的动漫产业集群内部和外部特征等;其次,分析基于产业价值链的中国动漫产业集群培育基础——动漫产业园区型基地;最后,针对中国动漫产业价值链的特点,提出3种基于产业价值链的中国动漫产业集群模式.基于产业价值链的中国动漫产业集群模式符合中国特色的政府主导下动漫市场经济发展模式,并且与动漫产业园区型基地的实际情况耦合,是中国动漫产业实现跨越式发展的一种重要途径.  相似文献   

11.
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   

12.
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   

13.
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   

14.
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   

15.
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   

16.
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   

17.
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   

18.
<正>In Xishuangbanna,one of China’s most biodiverse regions,landscape has changed dramatically during the past three decades due to the conversion of tropical rainforest to rubber plantations.In steep areas,terraces are often constructed before planting rubber trees,which causes two important changes in the soil:the destabilization of soil in the bench terraces and the increased vulnerability of unvegetated riser faces to erosion.Few studies have documented the nature and intensity of erosion on bench terraces.Prof.LIU Wenjie and his colleagues from the Xishuangbanna Tropical Botanical Garden(XTBG)conducted a study in Menglun County(21°5′39″N,101°15′55″E),Xishuangbanna to evaluate the influence  相似文献   

19.
<正>Chinese scientists plan to apply Earth Observation technologies to protect the critically endangered wild camels(Camelus ferus).With the help of remote sensing,satellite positioning,geographical information system and wireless sensors networks,they will be able to access the distribution and population of the wild camels and protect their habitats.The project will be carried out by the International Research Center for Wild Camel Conservation,which was jointly established earlier this year by the Institute of Remote Sensing and Digital Earth(RADI)of the Chinese  相似文献   

20.
<正>The Paul Gerson Unna Research Group on Dermatogenomics was founded in October 2012 at the Partner Institute for Computational Biology.The ultimate goal of the group is to understand the biology of skin and skin appendages.  相似文献   

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