城市轨道交通通信信号专业实验教学与人才培养初探

城市轨道交通高速发展,人才需求急剧增加。本文结合苏州大学城市轨道交通通信信号专业的建设和实践,重点从实验教师队伍建设、专业实验课程设置、实验室建设以及校企共建实践基地等方面阐述了对轨道交通通信信号专业实验教学与人才培养的初步探索。     

城市轨道交通通信信号专业网络技术课程的设置研究

城市轨道交通通信信号各岗位对于网络技术能力的要求越来越高,网络技术能力的培养也成为城市轨道交通通信信号专业学生能力培养的重要部分。论文以城市轨道交通通信信号专业各岗位的网络技术能力调研为基础,对城市轨道交通通信信号专业的的网络技术能力培养方法及课程设置进行了研究。     

城市轨道交通运营管理专业“三教改革”的实践研究

依据“三教改革”理论为指导,实施“三教改革”并贯穿城市轨道交通运营管理专业人才培养全过程,将“三教改革”全面融入城市轨道交通运营管理专业建设中,提出了“以教师为根本、以教材为基础、以教法为途径”的城市轨道交通运营管理专业“三教改革”的建设方案,使城市轨道交通运营管理专业人才培养成了一个闭环的整体,解决教学系统中谁来教、教什么、如何教的问题,经过探索与实践形成城市轨道交通运营管理专业“三教改革”的实践研究。     

确保城市轨道交通通信传输系统稳定运行的几个关键环节

城市轨道交通的安全、可靠的运行依靠准确、可靠、迅速的通信传输系统传递和交换各种信息。一般情况下,各站客流量及沿线列车的运行状况都可以根据通信系统传输给控制中心,由控制中心发布调度命令及控制信号,用于控制城市轨道交通的秩序运行。这也说明确保城市轨道交通通信传输系统可靠运行的重要性。本文介绍了城市轨道交通通信传输系统,探讨了确保其文星运行的关键环节及主要技术,旨在为城市轨道交通通信传输系统可靠性的提升提供一些参考。     

城轨供电仿真实训室建设方案的研究与探讨

随着城市轨道交通的快速发展,对城市轨道交通供配电技术专业人才需求大大增加,该专业人才实践技能的培养亟待解决。本文研究了城轨供电仿真实训室建设的必要性,给出了具体的建设方案,并对建设方案的可行性进行了论证。为城市轨道交通供配电技术专业实训基地的建设提供了参考,为该专业人才实践技能的培养提供了思路。     

我国城市轨道交通发展现状与对策研究

本文通过对我国改革开放前后城市轨道交通的发展历史和具体历程进行了综合的论述。对我国城市轨道交通发展采用的车辆、通信、信号和售检票等技术进行了研究概述,并总结各个城市轨道交通发展过程中存在的突出问题,针对轨道交通发展过程中的系统规划问题、建设资金来源及投融资方式、技术实力及设备制造、安全管理体系等方面的不足进行一一分析,提出了优化建设规划、发展多元化的投融资体系、积极提升技术研究和国产设备制造、完善安全保障体系等方面的对策,实现城市轨道交通的顺利、高效、可持续发展。     

城市轨道交通专业半军事化管理与学风建设优化

随着我国内地大城市轨道交通的跨越式发展,城市轨道交通运营管理专业人才成为社会亟须人才,在城市轨道交通专业采用半军事化管理,城市轨道交通专业半军事化管理与学风建设紧密结合,全面提高城市轨道交通专业在校大学生的综合素质,培养他们成为适应社会需要的城市轨道交通行业专业人才。     

现代城市轨道交通信号设备维修体系的思考与探究

社会经济发展带动了城市轨道交通通信技术的进步,信号设备作为轨道交通信号系统智能化发展的重要基础设施,必须采取先进的维护、维修手段,结合新材料,实现信号设备维修的经济性与时效性,确保现代城市轨道交通信号设备维修体系的可持续发展。     

通信技术在城市轨道交通中的应用

针对城市大力发展轨道交通以及城市轨道交通通信技术难度较大、发展较慢的现状,本论文详细探讨了城市轨道交通通信系统的设计与实现,给出了城市轨道交通通信系统的总体框架,并在此基础上详细设计了通信系统的传输框架及其通信接口的设计与实现方案,对于进一步提高城市轨道通信技术的应用具有较好的指导和借鉴意义。     

试析城市轨道交通雷击电磁脉冲防护

本文对城市轨道交通中的主变电所、牵引供电和动力照明配电系统的建筑物和系统的防雷措施进行了针对性的分析,提出防护方法;对通信、信号、综合监控、自动售检票、安防等弱电系统雷击电磁脉冲提出了防护措施,供城市轨道交通防雷设计和施工参考。     

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.