对光导管未来发展优势的探讨

社会需求使得科技的发展逐渐侧重于节能和舒适感,在光能利用领域,用电能转为光能已经不符合社会发展需要,自然光相较于人工光有着明显优势,使用光导管采光照明系统向室内导入自然光具有极大的未来发展优势。     

浅谈光导照明系统

在大力倡导绿色照明的今天,光导管系统作为一项利用自然光的绿色照明技术受到人们的广泛关注。本文介绍了光导照明系统的原理与结构、采用光导照明的优势以及光导照明技术的发展现状。     

一种基于太阳能利用的反射跟踪采光系统

在提倡绿色低碳环保的能源利用的背景下,为了提高太阳能的利用率,提出了一种反射太阳光的跟踪采光系统的设计方案,本系统由太阳光反射器、太阳能追踪系统和反射器的镀膜三大部分组成。实验测试结果表明,该系统有效地实现了对太阳光的追踪和反射,达到了多楼层建筑北向的全楼层采光、扩大阳光照射面积至低楼层的目的。     

一种新型室内采光模拟演示模型的研究

针对人们在购买房屋时对房屋室内采光情况的重视,本文提出了一种基于三维坐标模拟的新型房屋采光模拟演示模型。介绍了该演示模型的工作原理、变量设置及算法。该系统通过查表调整轨道至预定位置并滑动光源照射房屋模型达到模拟指定条件下房屋采光情况的目的。解决人们对于无法全面了解室内采光效果所带来的困扰。     

樊骜川:爱上编程是种幸福

看看创新达人的档案,你们应该都有所启发吧?学习榜样,充实自己,善于动脑,勤于动手,你们也会成长为创新领域的“新星”!姓名:樊骜川学校:山东省阳信县第一实验学校出生日期:2008年11月27日绰号:阿川我的闪光点:活泼用三个词形容自己:善良、聪明、乐于助人个人作品:防霾神器、高层楼房楼后采光系统、《碱蓬对盐碱地的生物改良》、清洁机器人、智能浇花器、病人就诊导医系统。     

基于光导照明系统的改良设计

在光能利用领域,自然光相较于人工光有明显的优势。太阳能作为干净的可再生能源,可以有效缓解当前资源匮乏的燃眉之急。但是由于太阳位置和太阳光的强度间歇性变化,不可避免采光效率低,为了解决这个问题,本文提出了一种自动追光的光导照明系统,想法来源于向日葵的追光现象,设计一种配置太阳能自动追光系统的采光器以及控制中心对整个系统进行实时监测和控制,以达到节能和自动化的目的。     

超级电脑进口袋

也许再过5～10年,综合采用了惠普实验室的忆阻器、柔性电子显示器和纳米级光导管芯片技术的大屏幕超级电脑就能放进你的口袋了。     

充分利用天然光进行建筑照明节能设计

介绍了利用天然光进行的建筑照明节能设计。建筑利用天然光的方法,概括起来有被动式采光法和主动式采光法两类。被动式天然采光法常用侧窗和天窗。主动式天然采光法目前主要有以下六种方式:镜面反射采光法、导光管导光采光法、光纤导光采光法、棱镜组多次反射采光法、卫星反射镜采光法和光电效应间接采光法等。利用天然光进行建筑照明设计,经济效益显著,环境保护效益更是不可估量。     

卷烟厂安全管理设想

阜阳卷烟厂经过"十五"技改后新建四栋烟叶仓库,改扩建了联合工房,新建办公楼及其他辅助用房;本文就已经配套建设的消防及安全防范系统的使用管理及完善提出设想,以供探讨。     

基于向日葵仿生视日的太阳能自动追光装置说明书

太阳能是一种公认的清洁能源,但是传统的固定式太阳能电池板的采光效率较低,为改进此缺点,本项目组从向日葵的追光特性中得到灵感,设计了基于向日葵仿生视日的太阳能自动追光装置,通过主控芯片对灰度摄像头和高精度光敏传感器得到的太阳位置图像进行信息化处理,经过深度逻辑算法得出太阳能电池板应采用的最佳采光姿态,进而驱动双轴传动系统将太阳能板缓慢移动到该最佳采光姿态,达成了仿生追光的目标。经过大量实验表明,本系统与市面上固定式太阳能电池板相比,日平均发电量提升了近40%,节能减排效果显著。与传感器式追光装置相比,本系统的灰度摄像头完全解决了光线较强时传感器不能正常工作的问题,创新效果突出,因此本系统应用范围更加广泛。由于系统本身是全自动控制的,所以便于安放布设,可以推广使用。     

Students' Reactions to the Introduction of Videoconferencing for Classroom Instruction

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.     

Cooler temperatures inductive to locust outbreaks

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.     

Exploring Multiplexity: Social Network Structures in a Computer-Supported Distance Learning Class

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.     

The Role of Intermediating Institutions in the Diffusion of Electronic Data Interchange (EDI): How Industry Associations Intervened in Denmark, Finland, and Hong Kong

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.     

How Electronic Publishers are Protecting Against Piracy: Doubts About Technical Systems of Protection

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.     

Rough Justice: A Statistical Assessment of ICANN's Uniform Dispute Resolution Policy

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.     

Prevalence of soft neurological signs in Chinese people

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.     

Monoculture Rubber Plantations Have Negative Ef ects on Controlling Splash Erosion

<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     

Chinese Scientists Use Earth Observation Technologies to Study and Protect Wild Camels

<正>Chinese scientists plan to apply Earth Observation technologies to protect the critically endangered wild camels(Camelus ferus).With the help of remote sensing,satellite positioning,geographical information system and wireless sensors networks,they will be able to access the distribution and population of the wild camels and protect their habitats.The project will be carried out by the International Research Center for Wild Camel Conservation,which was jointly established earlier this year by the Institute of Remote Sensing and Digital Earth(RADI)of the Chinese     

More than Skin Deep – Understand Skin Biology by Means of Dermatogenomics

<正>The Paul Gerson Unna Research Group on Dermatogenomics was founded in October 2012 at the Partner Institute for Computational Biology.The ultimate goal of the group is to understand the biology of skin and skin appendages.