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21.
选取2010-2017年我国高端装备制造业上市公司的微观数据,考察财政补贴、融资约束与企业研发投入之间的关系.研究结果表明:财政补贴对高端装备制造企业的研发投入强度具有显著的促进作用,且这种促进作用在国有企业、年轻型企业和成长型企业中更明显;而融资约束不仅直接对高端装备制造企业的研发投入强度产生抑制作用,还抑制财政补贴... 相似文献
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24.
信息伦理学研究中若干问题的思考 总被引:13,自引:0,他引:13
The further development of information ethics needs to solve some important ethic problems involved with disciplinary construction. These problems include the cause of the formation of information ethics; the research method,attribution and features of information ethics; the connotation and systematic structure of information ethics; the enlightenment we gain from the studies of the guiding principles of information ethics in foreign countries. The scientific analysis and exposition of these problems are helpful to the prosperity and perfection of information ethics and to the construction of social information ethics. 相似文献
25.
图书情报工作者的情报创新 总被引:4,自引:0,他引:4
Information value lies in innovation. Information innovation can provide high quality service for information users, enrich the content of information studies and enable librarians and information workers to play their parts to the full. The process of information innovation can be divided into the following stages seeking demand, seeking truth, seeking perfection, systematization, predictability, etc. In order to implement information innovation, we must have rational structure of knowledge,consciousness of innovation, strong ability to acquire documentary information and ability for expression. 相似文献
26.
垂直网站及其信息服务模式 总被引:7,自引:0,他引:7
The paper introduces vertical portals and their information service modes,analyzes the inevitability of their emergence and development, and finally gives some suggestions as to how to do a good job in providing information service through vertical portals. 相似文献
27.
在研发驱动的内生经济增长理论的框架内,对企业研发竞争行为和政府研发政策的最新研究进展进行了深入探讨,并结合我国产业现状指出政府为产业领先者提供补贴并对新的产业领先企业的利润征税能使社会福利达到最优。 相似文献
28.
基于内容的智能网络多媒体信息过滤检索 总被引:7,自引:2,他引:7
The paper discusses the construction of a content-based intelligent system that performs multimedia information filtering and retrieving on the Internet. The system disassembles the multimedia information into different media objects and describes them with vectors for content-based retrieval. In the user study module, the system uses the BP neural network to clarify the user interests for intelligent filtering and retrieving. 相似文献
29.
Plastid atpB/rbcL intergenic spacer sequences were obtained from 21 selected taxa and
one hybrid of Anemoninae (Anemone, Pulsatilla, Hepatica) and compared with Ficaria (Ranun-
culinae) as an outgroup. From the resulting matrix (1226 bp) a single most parsimonious tree was
obtained (Fig. 1 ). The branching of this tree is confirmed by many informative indels and appears
largely congruent with past plastid restriction analyses. Several new taxa are added. The monophyly
of the Anemoninae and their early split into two major clades is supported: clade I with the chromo-
some base number x = 8, clade Ⅱ with the reduced x = 7. Clade Ⅰ is made up of the basal Pulsatilla
and the Rivularis + Vitifolia groups. The Multifida group links to the crown groups Coronaria,
Blanda and Nemorosa. Clade Ⅱ consists of the basal Dichotoma group, followed by Hepatica, and
finally by the N. Hemisphere Narcissiflora and the S. Hemisphere Antucensis groups as sisters. The
problems of the Anemoninae ancestry, phylogenetic differentiation, and recent attempts for systemat-
ic classification are critically discussed. In view of the still incomplete sampling of DNA data, aconservative and informal approach to classification problems is recommended. 相似文献
30.
试论竞争情报工作的合法化 总被引:7,自引:0,他引:7
As competition requires fair law environment, competitive intelligence work should obey the rules of law, too. This article elaborates the legalization of competitive intelligence work from three aspects its necessity, manifestation and law system. Competitive intelligence tends to develop in the direction of standardization, and legalization is the inherent character of competitive intelligence. 相似文献