共查询到20条相似文献，搜索用时 46 毫秒
1.
根据高技术产业技术创新活动的复杂性,将高技术产业技术创新活动分解为技术研发过程和技术转化过程,通过构建固定规模报酬的网络SBM模型对我国区域高技术产业技术创新效率进行了较全面的评价。结果表明:我国区域高技术产业技术创新的整体效率和两个子过程效率都较低,存在明显的区域差异;技术转化过程并不是导致技术创新活动相对低下的主要原因;我国大部分地区表现为两过程效率的双重低效或一高一低;东、中、西部三大地区的高技术产业技术创新效率呈现出明显的"阶梯分布"现象。 相似文献
2.
为评价我国环保产业技术创新水平,基于技术创新价值链原理构建数据包络分析模型,根据第四次全国环境保护及相关产业基本情况调查数据,分析我国环保产业技术创新过程中的技术开发效率和技术转化效率。研究表明：①我国环保产业技术开发效率和技术转化效率平均值分别为0.65和0.23,技术创新效率总体偏低,尤其是技术转化效率很低；②东中部大部分地区纯技术效率低于规模效率且规模报酬递减,造成创新效率低下的原因并非是创新投入不足；③部分西部地区技术创新规模效率低下且规模报酬递增,创新资源投入不足制约了创新效率的提升。据此提出提高环保产业技术创新效率的对策建议：加快环保产业技术产业化和商业化,提升环保产业技术创新的产出层次和水平,拓展环保产业技术创新的投入模式。 相似文献
3.
4.
我国矿产资源型产业技术创新能力分布的动态演进研究 总被引：1，自引：0，他引：1
依据我国5大类矿种10个矿产资源型产业1996-2012年各项技术创新指标的面板数据,在得到产业技术创新能力综合评价指数的基础上,运用非参数Kernel密度估计方法及马尔可夫链分析模型,对我国矿产资源型产业技术创新能力的分布及发展演变趋势进行了研究,研究结果表明：①我国矿产资源型产业技术创新能力经历了“单峰→双峰→单峰”的演变过程,产业技术创新能力水平总体上都得到了一定程度的提高;②不同产业之间技术创新能力发展速度存在不平衡性,能源类矿产资源型产业明显高于黑色金属类、有色金属类和非金属类资源型产业的技术创新能力;③随着产业链的不断延伸,产业的技术创新能力提升速度加快,后续产业对原材料品质和技术含量要求的不断提高,对相关产业的技术进步具有明显的拉动效应;④矿产资源型产业经过长期的发展和积累过程,技术创新能力表现出向高水平状态转移的收敛性;⑤低水平资源型产业需要紧紧抓住经济发展方式转变的契机,充分利用后续产业技术进步的倒逼机制,加大技术创新投入,强化技术创新管理,加快技术进步速度,是实现产业资源效率、规模效率、技术效率和环境效率协调发展的现实路径。 相似文献
5.
构建京津冀高技术产业技术创新效率评价模型与体系,基于综合效率、纯技术效率、规模效率、规模报酬以及投影分析五个视角,从横向和纵向两个层面对2005年—2012年京津冀高技术产业技术创新效率进行静态与动态分析。结果发现,天津高技术产业整体技术创新效率最高,河北最低;具体行业技术创新效率三地区各有差异。最后对各评价结果进行分析,并从政府、产业、企业三个层面提出提高技术创新效率的建议措施,以达到创新资源优化配置。 相似文献
6.
上海市战略性新兴产业的蓬勃发展对于上海实现"创新驱动、转型发展"有着重要的意义,为了实现战略性新兴产业企业技术创新投入产出效率的最优化,文章基于文献研究和理论分析,构建企业技术创新效率评价指标。通过对上海市战略性新兴产业的重点企业问卷调研获得数据,应用数据包络分析方法(DEA)研究得出了上海战略性新兴产业七大产业技术创新效率、技术创新成果化和成果产业化两阶段的创新效率以及年度产业技术创新效率。上海市七大战略性新兴产业中节能环保、高端装备制造、新能源、新能源汽车四类产业企业技术创新效率达到了相对最优化,其余产业企业技术创新效率仍存在提升的空间。 相似文献
7.
运用DEA模型对1999年至2006年四川省高技术产业技术创新效率进行了有效性评价,并进一步运用DEA交叉评价模型得出各年份交叉效率值。在此基础上,对四川省高技术产业技术创新效率进行了动态分析,为有关部门制定高技术产业发展战略提供参考。 相似文献
8.
《中国科技论坛》2021,(8)
聚焦于产业技术创新过程中创新范式选择与创新资源优化配置问题,在构建产业技术创新效率评价体系的基础上,以中国高端装备制造业为例从行业与国家二维视角进行实证研究,以揭示产业技术创新范式选择规律,进而基于效率视角提出产业创新资源的优化配置策略。研究发现:不同国家高端装备制造业自主技术创新效率与技术引进效率间的关系存在较大异质性;中国高端装备制造业的技术引进效率全球领先,自主技术创新效率则处于全球中上游水平;中国高端装备制造业细分行业的技术创新效率存在较大离散性,适度控制其技术创新资源的投入规模并调整其投入结构,可有效提升其技术创新效率;在技术创新资源约束条件下,以效率为导向的技术创新范式选择应是先从技术引进开始,在实现技术创新规模效应、不断提升技术创新管理水平的基础上再进行自主技术创新,进而实现综合技术创新;产业应遵循特定比例关系进行技术创新资源的优化配置,以提高技术创新资源的优化配置效率。 相似文献
9.
10.
江苏省高技术产业技术创新效率评价 总被引：16，自引：0，他引：16
运用数据包络分析法(DEA),从横向比较和纵向分析两个角度对江苏省高技术产业整体技术创新效率进行了域际评价,并深入分析了江苏省5大高技术行业的技术创新效率,为提高江苏乃至全国高技术产业技术创新效率提供决策参考. 相似文献
11.
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
12.
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
13.
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
14.
《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
15.
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
16.
《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
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.
《中国科学院院刊(英文版)》2014,(3)
<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