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企业信息系统安全 总被引：2，自引：0，他引：2
With a discussion on the importance of securing the enterprise network information system, this paper analyzes the means by which the hackers attack the enterprise information system. It introduces the key technologies for securing the enterprise information system,and puts forward some important ideas about the security of enterprise information system. 相似文献
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数字信息长期存取策略研究 总被引：4，自引：0，他引：4
With an analysis of the characteristics of digital information,this article introduces several strategies for the long-term preservation of digital information. It's pointed out that the establishment of a file system of digital information is the best choice. Besides,the migration technology and the reproductive preservation technology can also be used in the light of specific conditions. 相似文献
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GUO Huadong 《中国科学院院刊(英文版)》2013,(2):96-98
Remote sensing, which came into being at the first International Symposium on Remote Sensing of Environment （ISRSE） 50 years ago, has enabled people to obtain objecive and realistic spatial and temporal information through the application of Earth observation technologies and analyze and understand the macro-level changes of the Earth system from a spaial view. The technology of Earth observaion from space has incomparable advantages in the study of the Earth. This aricle introduces the 50-year development of Earth observaion in the world and the 30-year development of Earth observaion in China and reflects on the building of China＇s Earth observaion system. 相似文献
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《中国科学院研究生院学报》1985,(1)
The purpose of this paper is to discuss the influence of sampling rate on closed system which has been discretized from continuous system and in which the ZOH is not inserted, As an example, in has been discribed for the second order system that the impoper choice of sampling rate may cause the unstability of a discretized system, though its original continuous system is stable. The change of locations of poles due to the variations of sampling rate are shown in plots. Proper sampling rate is suggested. Different methods of discretization are compared, and the bilinear transform is recommended. 相似文献
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基于因特网的自动化和智能化信息搜集技术 总被引：2，自引：1，他引：2
In order to make the information acquisition work of libraries more effectively, this paper proposes an automatic intelligent system based on Internet and explores the concepts and principles of meta search and document classifi-elation technologies. 相似文献
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基于WWW的全文数据库信息服务系统的设计与实现 总被引：4，自引：0，他引：4
With the development of information service industry, establishing the full text database information ser-vice system based on WWW has become a trend. This article introduces a kind of this system, elucidating the technolgies and methods that can be used in the design of this system in detail. Finally, an example is given. 相似文献
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oduces the its system frame and development technology and the realization of its functions.The developed system can realize the standardization,automation and high efficiency of "three kinds of coal reserves" management.Finally,this paper proposes also the improvement direction of the management softwa 相似文献
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大众传播信息合理使用原则分析 总被引：1，自引：0，他引：1
The principle of the rational use of the copyright of mass communication is an importamt legal system to protect the right of the social public and individuals to use information. However, this system is facing severe challenges both in technology and in benefit. This paper attempts to analyzes the problems in the principle of rational use, such as the principle of judgement, abuse restriction and the principle of rational use under the network communication conditions. 相似文献
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The characteristics and development ofcluster technology are briefly introduced. The requirement for cluster technolgv, the grade of availability, the advantage of cluster technology and the system structure model are discussed. Finally,the article specifies 3 data sharing models,that is,Mirror,Share Nothing and Share All. 相似文献
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构筑信息服务保障体系思实录 总被引：2，自引：0，他引：2
Combining theory with practice and proceeding from operability, this paper puts forward 7 principles of con-structing the information service guarantee system, that is, engineering, capability, mutual service, service advantages,Web-besed information, overall coordination and sustained perfection. Meanwhile, the paper poirts out that, in the con-stmcfion and operation of the information service guarantee system, the interrelationship of key elements is more important than the constitution of key elements, and the construction of the system is more important than the application of technology. 相似文献
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滨海新区循环经济发展的目标模式是在区域生态循环系统和基础设施系统支撑下的循环型经济系统和社会系统的有机组合与共生。其实现模式可分解为循环型生产系统、流通服务系统、消费系统、社会系统、区域生态循环系统以及区域基础设施系统等子系统的发展模式。 相似文献
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构建我国公共图书馆延伸服务体系在部分经济发达地区已经取得了成果,但在绝大多数地区还存在许多问题,问题的关键是缺少应有的制度保障,而且缺少对制度设计的深入研究。制度设计内容包括:政府主导制度,经费保障制度,技术支撑制度,队伍建设制度,特色服务制度,考核评价制度和监管落实制度等。对于公共图书馆延伸服务体系而言,科学而完备的制度设计能够确保提高其构建质量,促进其规范有序快速地发展。 相似文献
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基于军民融合与物流相关理论,界定军民融合物流体系的概念,分析军民融合物流体系建设的基本原则,研究军民融合物流体系的组成,包含军民融合物流法律法规体系、运行机制体系、信息共享体系、物流标准体系、组织管理体系、物资储备体系、物资运输体系、协同创新体系和人才培养体系,并对这9个子体系进行详细分析,最后探讨建设军民融合物流体系的核心、基础和重点,为建设军民融合物流体系提供相应的实践指导。 相似文献
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循环经济立法的关键在于完善发展循环经济的制度安排,主要应该包括循环经济规划制度,循环经济评价指标体系和考核制度,循环经济的标准、标识、标志和认证制度,以生产者为主的责任延伸制度,重点企业资源节约和循环利用的定额管理制度,产业政策的规范和引导制度,政策激励制度以及政府、企业和公众的责任制度等。 相似文献
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技术系统和创新系统:观点及其比较 总被引：3，自引：0，他引：3
物化的技术系统是在技术相关研究中最早采用系统观点的概念。从新熊彼特创新理论出发,一些学者提出了将支持技术创新的制度网络作为研究对象的国家创新系统、技术系统、部门创新系统、区域创新系统等方法,这些方法在普遍接受交互学习理论和进化理论的基础上,对于系统的构成和边界的确定存在明显分歧。 相似文献
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分析了高新技术企业技术创新服务体系的内涵，并探讨了如何从优越的技术服务体系、合理的政策服务体系、必需的人才服务体系、必要的投融资服务体系、健全的法律服务体系五个子系统全面构建技术创新的服务体系，从而奠定区域创新体系的基础。 相似文献
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介绍了图书馆危机沟通系统的内涵和重要性,从危机沟通系统环境、危机信息管理系统、危机信息决策系统、危机信息执行系统、危机信息发布系统等5个方面,论述图书馆危机沟通系统的构建. 相似文献