Achieving Diagnosis by Consensus

This paper provides an analysis of the collaborative work conducted at a multidisciplinary medical team meeting, where a patient’s definitive diagnosis is agreed, by consensus. The features that distinguish this process of diagnostic work by consensus are examined in depth. The current use of technology to support this collaborative activity is described, and experienced deficiencies are identified. Emphasis is placed on the visual and perceptual difficulty for individual specialities in making interpretations, and on how, through collaboration in discussion, definitive diagnosis is actually achieved. The challenge for providing adequate support for the multidisciplinary team at their meeting is outlined, given the multifaceted nature of the setting, i.e. patient management, educational, organizational and social functions, that need to be satisfied.

电视电话会议系统反事故演习在宁夏电力的实施

为了保障宁夏电力电视电话会议系统的正常稳定运行,针对目前系统中比较典型和常见的几类故障,分别从传输链路的备份、音视频系统的备份、核心设备主要板件的备份等方面进行了反事故演习。突出了国家电网公司对会议系统要求的“一主两备”,并且采用了网络视频作为电视会议系统的视频备用手段。通过此次演习,检验了宁夏电力电视电话会议系统技术保障方案和反事故预案的可行性和可操作性,保证了系统稳定、可靠的运行。     

县级电视电话会议设备原理与维护

电视电话会议的故障具有突发性,维护工作具有及时性和紧迫感强等特点。只有对系统设备的工作原理、信号流程和接线都非常熟悉,才能在故障发生的极短时间内判断和处理故障,保障正在召开的电视电话会议不中断。文章以江苏南京地区县级分会场设备为例,从电视电话会议系统组成、各部分原理和设备特点入手,找出故障易发位置以及故障判断的方法,最后介绍了几例典型故障分析处理过程。     

卫星会议电视系统及网控技术

介绍了一种卫星会议电视系统，它利用IBS／IDR技术进行业务信息传输，利用TDM／TDMA技术进行网控信息传输。重点介绍了卫星会议电视系统中的关键技术之一－－网控技术，包括会议网管系统、卫星会议电视多点控制器和远端控制器、网控信道TDM／TDMA调制解调器、TDM／TDMA帧结构等，并对网控信道性能进行了分析。     

青藏直流联网工程通信保障系统的建设

介绍了首次应用于长距离跨区电网建设时期的青藏直流联网工程通信保障系统,包括青藏工程全线的电视电话会议指挥系统、青藏工程总指挥部的信息通信系统、应急卫星电话系统等.该系统的建成最大限度地减少了青藏工程参建人员高原高海拔地区的流动,提高了工作效率,保障了人身安全.通信保障系统在青藏直流联网工程中的成功应用,为今后通信技术在...     

电视电话会议系统在反事故演习中的应用

文章通过总结电网联合反事故演习对电视电话会议系统的要求,分析了反事故演习中调度台和演习电话的配置,演习人员声音的拾取及向会议系统的导入,观摩室中音频信号的处理等不同于日常电视电话会议的特点,探讨了解决方案并描述了甘肃省调的具体措施,最后为通信保障人员的正确操作提出了注意事项。     

电视会议系统的应用分析

光纤通信传输网的建成,满足了电视会议对网络传输容量及质量的要求.文章通过对电力系统电视会议需求以及当前电视会议技术的应用情况分析,从应用的角度探讨技术选择应考虑的重点;简要描述了安徽电力电视会议系统的建设及应用情况,说明了基于MPEG-4标准和H.323的组合方式实现高清晰电视会议系统的优点,从系统投入试运行至今的运行效果看,基本达到设计要求,说明该系统具有良好的应用前景.     

Understanding the functions of teleconferences for coordinating global software development projects

One of the dominant characteristics of contemporary software development is the global distribution of tasks, of developers, of information and of technologies. Undoubtedly, such distribution engenders new coordination challenges in the form of distance‐related interdependencies. One of the predominant processes of addressing these challenges is electronic meetings (or teleconferences). However, the functions of these meetings for coordination purposes are not yet understood. The distinctive conventions of teleconferences and their causal relationships that lead to optimal coordination of global software development (GSD) projects are also not yet understood. In this paper, the functions of teleconferences held by globally distributed software developers to coordinate their work in the face of global distribution of resources, cross‐site information interdependencies and continuously changing software requirements are analysed. The analysis is based on a qualitative study of how a subunit of 13 software developers, distributed across three sites in the USA and one in Republic of Ireland, used teleconferences to address its coordination challenges. The paper proffers a teleconference approach to GSD coordination by arguing that the functions of teleconferences manifest in software developers' multitasking; their ready access to all their information as additional benefits; flexibility in their communicative behaviours; and a reduction in their structure overload. This approach draws attention to these manifestations as distinctive conventions of the de‐structured meeting, which de‐structuring is occasioned by organic information processing needs in teleconferencing. This approach also explains why the combination of global distribution and teleconferences is a strategic opportunity for information processing for software process coordination.     

大新高速公路会议电视系统的建设

介绍了会议电视体系的概况及其结构组成，结合大新高速公路会议电视系统工程概况，提出了该工程的设计原则，并对其网络配置和视讯交换平台体系结构作了阐述。     

使用ISDN基本访问的多点多媒体会议

多点多媒体会议是多媒体通信的一个十分重要的应用。本文首先概述多点会议的网络配置、通信要求和协议要求，接着介绍了多媒体会议桥或者叫多点控制的功能，最后介绍多点会议的有关标准。