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21世纪的光电子产业 总被引：5，自引：0，他引：5
简明阐述了光子学、光电子技术的发展历程和形成光电子产业（亦称光子产业）的现状及其构成的技术基础，指出光电子科学技术和产业在促进国家经济和科学技术持续发展中的巨大作用及其发展趋势，提出要抓住机遇，加速建立和发展我国的光电子产业。本文还着重分析了广州为中心创建“广东光谷”的有利条件。 相似文献
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光电子产业是新世纪信息经济的主导产业,光电子技术及其产业是各国高新技术竞争的焦点。根据微电子技术及产业向光电子技术及产业的变迁,结合武汉所具有的优势,提出了在武汉东湖新技术开发区建设武汉·中国光谷的构想,阐述了武汉·中国光谷的发展模式。 相似文献
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高性能材料产业是江苏省镇江市“十四五”重点发展的八条产业链之一,也是新材料产业集群中唯一的重点产业链。目前,镇江市亟需通过产业专利导航分析明晰产业发展及转型升级的合理方向。本文基于IncoPat专利数据库,对专利包含的技术、法律和市场等信息进行深度分析,综合产业布局热点方向、产业增长热点方向、头部企业研发布局方向、核心专利技术分布方向、协同创新热点方向、专利转让热点方向、专利诉讼热点方向,厘清高性能材料产业的技术发展重点方向,为镇江市产业的发展方向规划提供科学的决策参考。 相似文献
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长春是中国光学科技的发源地，是我国光电子领域科研，产业和人才相对比较集中的地区，拥有较好的研发优势、人才优势，环境优势和产业基础，具有建设国家光电子产业基地得天独厚的条件． 相似文献
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光学向光子学的开拓及其意义 总被引：1，自引：0，他引：1
光学向光子学的开拓是现代光学的主要发展趋向。光子学着重光子与物质的相互作用和它的承载信息的能力。为了进一步完善光子学,必须发展微光子工艺技术。80年代中半导体激光器与光通讯的巨大进展已揭开了“光子学革命”的进程。可以预期,微光子与光电子技术与微电子技术的结合将在下一世纪产生出更高水平的未来的信息技术。 相似文献
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本文通过对上饶光学产业的现状分析,指出了影响上饶光学产业创新发展的问题和因素,阐述了建设光学产业共性技术服务平台对上饶市光学产业科技进步的意义,并对共性技术信息服务促进上饶市光学产业科技进步进行了功能分析。 相似文献
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光电子信息产业是一种新兴产业,在许多领域我国与发达国家只有两三年的差距,部分领域还具有世界领先水平。在该产业的快速发展中,分析武汉光电子信息产业集群发展所面临的问题,并寻找对策．对于高科技企业集群的建设和发展意义重大。 相似文献
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传感技术是现代信息社会的神经中枢,光纤传感则是一种新兴的现代传感技术,由于它具有灵敏度高、响应速度快以及抗干扰、抗各种恶劣条件等一系列优点而成为传感领域的姣姣者,因而在光学与光电子学科中占有重要地位。光纤传感划分为非功能型和功能型两大类:前者简单易行、无需特殊技术,因此已被广泛研究,并有相当数量进入实用化,功能型传感则要求条件苛刻,多数仍处于研制阶段,但因其具有极高灵敏度,属于高性能传感类,故仍为光纤传感的主要发展方向。文中以表格形式概要列示了这两类光纤传感的基本状况,表明光纤传感有广泛应用前景。光纤传感器今后发展趋势是:加速光纤传感器的实用化进程,大力开展光纤传感技术的集成化研究,积极开展多功能光纤传感及其网络化研究,以及不断推出新型光纤传感器并开拓新的应用领域等。 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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《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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《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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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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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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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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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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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
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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