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现阶段，计算机在园林设计中不断发展壮大，与时俱进，已成为一种产业。三维园林漫游将成为现实，即可同时完工，不同的视点，不同的路线，不同的季节，动态的流水，光线的变换，都可以完整的表现出来，模拟出一个充满设计理念的作品。令计算机与设计过程紧密结合，包括园林设计过程任务书阶段，基础调查和分析阶段，方案阶段，详细设计阶段，施工图制作阶段等，设计师利用计算机软件进行辅助园林设计，把基本资料输入计算机，让计算机参与分析，计算，设计的过程，并能够实时进行三维效果预视或者三维虚拟，与实景环境合成，一边观察，感受效果，一边设计和修改创作，设计过程结束时设计图纸也就相应地输出。当然也能独立完成透视，鸟瞰，轴测，立面，平面等效果图和平面施工图的绘制，甚至是三维动画漫游的效果。本文就计算机辅助设计软件在园林规划中的发展概况及园林设计中广泛应用的相关计算机技术作一简单介绍。 相似文献
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随着计算机技术的发展,计算机辅助外语教学越来越受到重视。计算机辅助外语教学的四大特点可以使大家更有效地发挥多媒体计算机在辅助外语教学中的作用。本文针对计算机教学与传统课堂教学的关系,提出了计算机辅助外语教学的几点具体应用方法。 相似文献
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随着计算机技术的不断发展,以计算机为主体的计算机辅助教学技术已经成为重要的教学技术之一。计算机辅助教学能够极大地促进教学和学习,本文主要分析计算机辅助教学技术在理论教学和教学效果中的实施方案,希望能为计算机辅助教学技术的应用提供参考。 相似文献
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计算机辅助教学对教学过程、课堂信息量和师生之间的交流将产生较大影响。提高教师对计算机辅助教学的认识,加强教师计算机技术的培训,充分发挥计算机在教学中的作用。 相似文献
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随着计算机技术的迅猛发展及计算机的大量普及,很多中学配备了微机室、专用多媒体教室,建立网管中心,无疑为计算机辅助教学（CAI）打下了硬件基础。如何认识CAI在中学教学中的地位,充分发挥计算机辅助教学在现代教育技术中的作用。 相似文献
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CALL(计算机辅助外语教学)在外语教学中的发展现状及前景 总被引：1，自引：0，他引：1
随着计算机技术的日新月异,计算机已被广泛地应用于社会各个领域.计算机辅助语言教学(CALL-Computer Assisted Language Learning)也扩展到了语言教学的听、说、读、写等各个方面.计算机辅助语言教学(CALL)是指利用计算机帮助教师进行语言教学或以计算机为中心来组织语言教学的一种教学方式. 相似文献
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1964年,Hansch建立起了定量构效关系,计算机技术开始得以进入到医学领域并应用于药物设计,发展到20世纪七十年代,随着计算机技术的不断发展以及分子学,量子学等多门学科的加入,计算机辅助药物设计正式的发展为一门新兴技术。经过近40年的发展,这门新兴技术已经逐渐趋于成熟,并已有多项成功设计案例,计算机辅助药物设计技术为药物设计提供了最为直观的模型,在很大程度上带动了新药的开发。 相似文献
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计算机技术发展及应用综述 总被引：1，自引：0，他引：1
随着计算机技术的不断发展与深入,各个行业的自动化进程正在逐渐加快,本文阐述了计算机技术在每个发展阶段的特点,以及关于多媒体技术与计算机辅助教学的概念. 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
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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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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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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
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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
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《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