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当前,我国高技术产业面临整体竞争力偏低、关键技术缺失的困境.继续扩大技术投入,提高创新绩效是实现高技术企业向创新驱动型发展的必要途径.采用1995-2016年高技术产业17个细分行业数据,考察自主研发、技术改造2种不同技术投入模式对创新绩效的影响.研究发现:自主研发投入规模增长十分迅速,对创新绩效起到显著的促进作用.技术改造增长相对缓慢,对创新绩效的提升效果不显著;同时投入自主研发与技术改造对提升企业创新绩效的作用明显大于单纯依靠自主研发投入;在各行业中,自主研发对航空航天器及设备制造业创新绩效提升作用最大,对电子及通信设备制造业作用最小;电子及通信设备制造业技术改造投入效果显著,其他行业技术改造投放效果不显著. 相似文献
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高新技术企业技术创新绩效影响因素的实证研究 总被引：2，自引：0，他引：2
本文以江苏省新材料、电子信息和新能源3个行业领域1562家高新技术企业为研究样本,对企业技术创新绩效的影响因素及其与技术创新绩效的关系进行了实证检验.结果表明,3个行业样本企业的研发经费投入力度与技术创新绩效产出均存在明显的正相关关系.研发人员比例与技术创新绩效产出不存在明显的相关关系.研发经费对技术创新绩效产出的贡献率远高于研发人员对技术创新绩效产出的贡献率.研发经费投入强度与创新绩效产出存在明显的负相关关系.企业规模与技术创新产出存在明显的正相关关系.企业总资产对创新绩效产出的影响程度要明显高于员工总数对创新绩效产出的影响程度.研发投入和企业规模对创新绩效产出的影响程度存在行业差异. 相似文献
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基于我国工业企业数据,使用门槛面板数据模型,研究了研发投入强度对企业绩效的非线性影响：研发投入强度只有达到第一门槛值时,才能对企业绩效产生显著促进作用;而超过第二门槛值时,对企业绩效的作用变得不明显;研发投入强度对企业绩效影响的门槛效应存在行业差异。最佳的研发投入强度区间是：对于高技术行业而言,研发强度处于1.1%~4.13%时,研发对资产收益率的促进作用最明显;研发强度处于1.17%~4.16%时,研发对全要素生产率的促进作用最明显;而对于低技术行业,研发强度在0.74%~3.73%时,研发对资产收益率的促进作用最强;而在0.93%~3.8%时,对全要素生产率的促进作用最强。我国有研发活动的企业中,超过51.46%的企业,研发投入强度仍低于第一门槛值。因此,引导企业研发创新,提高研发投入强度仍将是我国科技政策的重要目标。 相似文献
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基于比较视角,运用协方差分析模型及2011-2018年制造业数据进行实证研究,探讨供给侧改革以来制造业创新绩效的变化及其成因.研究发现,在技术研发阶段,供给侧改革显著促进研发绩效提升,原因是工艺创新强度、R&D投入强度得到加强并对研发成果形成正向作用;在成果转化阶段,供给侧改革促进市场绩效提升不够显著,研发成果对市场收益发挥积极作用不显著. 相似文献
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外部技术来源视角下我国高技术产业创新绩效研究 总被引：4，自引：0，他引：4
基于1999-2008年我国高技术产业行业面板数据,运用随机前沿分析法,就国内技术购买、国外技术引进和三资企业科技活动溢出等外部技术来源形式对我国高技术产业创新绩效影响进行研究,结果表明:样本期间,以专利为产出的我国高技术产业创新绩效稳步增长,而以新产品销售收入为产出的创新绩效增长缓慢;国内技术购买和三资企业科技活动是促进我国高技术产业专利产出的重要外部技术力量,而国外技术引进能显著提高以新产品销售收入为产出的创新效率.在分析基础上提出了相应对策建议. 相似文献
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基于文献研究和理论分析,构建制造业数字化绿色创新生态与经济效益影响因素理论模型.采用中国高技术制造业2008-2018年时间序列数据,从技术进步因素、基础设施建设、政府支持、市场竞争强度、企业创新投入、人才基础以及生态效益、经济效益等方面构建主成分回归模型,研究结果发现:技术进步、政府支持以及市场竞争强度对制造业数字化绿色创新生态效益具有显著正向影响;基础设施建设、市场竞争强度以及企业创新投入因素对制造业数字化绿色创新经济效益具有显著正向影响.基于研究结论,为制造业数字化绿色创新的实施及制度完善提出对策建议. 相似文献
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现有研究对于政府对制造业补贴能否提高制造业绩效存有争议。通过理论分析认为,研发投入是提高制造业绩效的有效途径,而且相比于一般制造业研发投入对高技术产业的绩效提高效果更为明显。同时研发投入需要大量资金,如果一味增加研发投入,可能挤占其他部门资金。因此,政府补贴能够通过提高企业的研发投入促进企业绩效提升,而且对于高技术产业企业绩效提升的正面影响要大于对一般制造业;并通过A股上市企业的数据进行实证研究,证明以上研究结论。这意味着政府应该对企业进行补贴,而且应该重点补贴高技术产业。 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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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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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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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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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
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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