“百强”企业电子政务“软件收入增长率”一览

航天信息、点击科技、威速.青岛英网、鼎天、九城数码、朝华东方通、万维易化、美髯公、安博、中科红旗、实达网络、东方易维、中联绿盟、金蝶中间件浙大快威、万达、中唐网南北天地、网畅、富通联合山东三联、慧点科技、信雅达、安卓思、拓尔思(TRS).金山、中关村科技、安托、博达、东软、合力金桥、南开戈德清华紫光文通用友安易、海信、兆维亿方、迈普、北大方正、中软、瑞星、杭州新中大、榕基、长通联合宽带、太极、EMC嘲圈■睐(含10%)和腾,远光通联、首都信息、上海天好、上海互联网、冠群金辰、冲浪平台、长城计算机、实达电脑、…     

本刊宗旨——lT与自控技术在工业自动化中的应用

智能传感器、智能仪表、智能执行机构、数据采集、变频器、PLC、电源、电力电子、工控机、工控软件、工控系统、DCS、现场总线、嵌入式系统、嵌入式软件、PC／104、单片机、oPc、TCP／IP、internet、工厂自动化、企业网络、过程控制、制造业自动化、楼宇自动化：安防工程、电梯控制、暖通空调控制、给排水控制、电水煤气三表数据采集、家电控制、家庭机器人。     

主流ERP软件厂商技术指标调查

调查对象 SAP、Oracle、Baan、Mapics(美碧氏)、英泰峡、GrapeCity(原奥林岛集团)、FrontStep、四班、中软冠群、用友、金蝶、博通资讯、东软、东软金算盘、华嘉经纬、华录计算机、神州数码、金航数码、科软、歌利来、吉大工易、利玛、浪潮通软、杭州新中大、奇正、微蓝软件、荚克科技、珠海通软、和佳、JDE、安易、北京和利时、北京富士通系统公司、华夏新达、珠海天心等ERP厂商。     

本刊宗旨 IT与自控技术在工业自动化中的应用

智能传感器、智能仪表、智能执行机构、数据采集、变频器、PLC、电源、电力电子、工控机、工控软件、工控系统、DCS、现场总线、嵌入式系统、嵌入式软件、PC／104、单片机、OPC、TCP／IP、internet、工厂自动化、企业网络、过程控制、制造业自动化、楼宇自动化：安防工程、电梯控制、暖通空调控制、给排水控制、电水煤气三表数据采集、家电控制、家庭机器人。工业机器人、微型机器人、微型机械、数控机床、CAD、CAE、CAM、     

酷软花絮

FileOptimizer批量多类型文件压缩优化工具FileOptimizer是款文件压缩优化工具,支持众多文件格式,并支持批量操作。FileOptimizer支持的文件格式有AIR、APK、APNG、APPX、BMP、CBZ、DOCX、DLL、EPUB、EXE、GIF、GZ、ICO、JAR、JPEG、MNG、MP3、MPP、PNG、PPTX、ODT、OGG、OGV、PDF、     

本刊宗旨——IT与自控技术在工业自动化中的应用

智能传感器、智能仪表、智能执行机构、数据采集、变频器、PLC、电源、电力电子、工控机、工控软件、工控系统、DCS、现场总线、嵌入式系统、嵌入式软件、PC／104、单片机、OPC、TCP／IP、internet、工厂自动化、企业网络、过程控制、制造业自动化、楼宇自动化：安防工程、电梯控制、暖通空调控制、给排水控制、电水煤气三表数据采集、家电控制、家庭机器人。     

“百强”企业电子政务“总收入增长率”一览

玩芙话i■—i苦j一:圭岛美丽、九城数码、朝华科技、威速泵芳面■审蘸碌亟、美髯公、理正软件、中科红旗、万维易化、慧点科技、安博大恒、万达、鼎天、信雅达、华深慧正、浙大快威伟思、网畅.安卓思、南北天地、太极北大方正.拓尔思(TRS)、金山、中关村科技、曙光、北科光大、东软、EMC角爱安易.毒i藿}联合科技、清华紫光、瑞星、长城计算机、中软、杭州新中大、合力金桥、兆维亿方、东软金算盘、迈普、清华紫光文通、实达网络黼豳■雕(含10%)朗登、海信、冠群金辰、中科大讯飞、北京集联、冲浪平台、中科软件、福建榕基、首都信息、博…     

《PLC技术应用200例》

PLC（可编程序控制器）广泛地应用在冶金、机械、机器人、石油化工、电力传动、纺织机械、注塑机、包装机械、印刷机械、造纸机械、机床、自来水厂、污水处理、煤矿机械、焊接机器、榨糖机械、制烟机械、工程机械、水泥机械、玻璃机械、食品机械、灌装机械、橡胶机械、船舶、铁路、窑炉、车辆、智能建筑、电梯控制、中央空调控制、大型医疗机械、起重卷扬机械。大坝闸门，大型泵站……。     

《PLC技术应用200例》

PLC（可编程序控制器）广泛地应用在冶金、机械、机器人、石油化工、电力传动、纺织机械、注塑机、包装机械、印刷机械、造纸机械、机床、自来水厂、污水处理、煤矿机械、焊接机器、榨糖机械、制烟机械、工程机械、水泥机械、玻璃机械、食品机械、灌装机械、橡胶机械、船舶、铁路、窑炉、车辆、智能建筑、电梯控制、中央空调控制、大型医疗机械、起重卷扬机械，大坝闸门，大型泵站……。     

《PLC技术应用200例》

PLC（可编程序控制器）广泛地应用在冶金、机械、机器人、石油化工、电力传动、纺织机械、注塑机、包装机械、印刷机械、造纸机械、机床、自来水厂、污水处理、煤矿机械、焊接机器、榨糖机械、制烟机械、工程机械、水泥机械、玻璃机械、食品机械、灌装机械、橡胶机械、船舶、铁路、窑炉、车辆、智能建筑、电梯控制、中央空调控制、大型医疗机械、起重卷扬机械，大坝闸门，大型泵站……。     

连续运输系统串行通信网络性能研究

介绍了原有的连续运输系统串行通信网络结构及主站通信流程,指出原有通信网络中存在总线通信效率低、从站的通信故障可能导致整个网络瘫痪的问题,提出了一种改进的连续运输系统串行通信网络。改进的通信网络将原有通信网络分成2个并行的通信网络,通过减少通信访问量、提高波特率、改变通信差错控制方式等方法,有效解决了各种通信矛盾。实际应用表明,改进的通信网络运行可靠、响应及时,提升了连续运输系统的可靠性。     

煤矿绿色无线通信关键技术探讨

从透地通信、感应通信、漏泄通信、小灵通通信、WiFi通信及3G通信等煤矿无线通信技术的现状出发,分析了现有煤矿无线通信技术存在的问题;结合绿色无线通信的概念和特点,详细介绍了煤矿无线通信网络能效分析、煤矿绿色无线通信标准建立、高能效覆盖方法设计、无线网络协作通信技术及高能效实时传输技术等煤矿绿色无线通信的关键技术。     

基于RFID技术的停车场通讯系统的设计

提出红外通讯与无线通讯结合在停车场通讯系统中,为了克服目前停车场通讯系统中,相邻车道之问无线通讯的相互干扰,该通讯系统引进具有方向性特点的红外通讯;设计了功率可控红外发射电路,从而达到停车场通讯系统中车道口的通讯距离可调,采用射频识别技术中的导出密钥的相互鉴别实现数据安全;通过局域网完成各车道口之间以及各车道口与管理中心的信息交换,实现停车场管理的网络化和信息化;实际证明,该通讯系统具有实际的应用价值。     

Is communication competence still good for interpersonal media?: Mobile phone and instant messenger

The concept of communication competence has developed in the area of nonmediated interpersonal communication. With the advent of digital media, interpersonal communication has been heavily dependent on interpersonal media. The sharp distinction between theories for nonmediated communication and mediated communication is disappearing. The interconnectedness of face-to-face communication and mediated interpersonal communication is a salient current phenomenon. To explore the relation between two communication types this study investigated the relevance of the concept of communication competence with the interpersonal digital media; mobile phone, SMS, and instant messenger. Three facets were examined in particular: namely, the direct effects of communication competence and the indirect effects through individuals’ cognitive process for interpersonal media and individuals’ characteristics in interpersonal communication. The hypothesized model of mediated interpersonal communication competence was analyzed using structural equation model. The results revealed that communication competence was positively associated with mediated interpersonal communication competence. The indirect effects of communication competence through media efficacy and social presence were empirically supported. Relationship maintenance was found to mediate the effect of communication competence on mediated interpersonal communication competence. The links of two different communication fields and the theoretical implications of the findings were further discussed.     

Group processes in solving two problems: Face-to-face and computer-mediated communication

In this study, an experiment on communication and problem solving in face-to-face communication and computermediated communication was conducted. The latter was performed in two variants; subjects writing under their own name or subjects writing anonymously. The problems were a Social Dilemma problem and a Criminal Puzzle problem. The theoretical starting point was if, and how, the communication form influences social relations, communication equality and communication processes. A qualitative analysis showed that different problems were related to different patterns of the variables studied. The computer-mediated communication solving the Criminal Puzzle problem induced relatively greater idea generation that was not responded to, while the face-toface communication was associated with relatively more answers. In the Social Dilemma, feedback was relatively more common in face-to-face communication than in computermediated communication. To 'give information about the game' was relatively more common in the anonymous computer-mediated communication than face-to-face situation, indicating that computer-mediated communication is associated with speaker generation of information, but less with responses to the interlocutor. There were no outcome differences or communication equality effects related to communication condition. These results point to the importance of the task related activities in the discussions rather than the importance of medium.     

基于数据分发服务的语音通信系统的设计与实现

针对大型试验场所试验过程中通信位置灵活分散、通信节点多的特点,满足人员分组通信互不干扰、通信状态可控、通信内容保密的需求,设计并实现了一种基于数据分发服务(Data Distribution Serv-ice,DDS)的语音通信系统.设计通信控制台对分组通信与动态登陆过程进行管理与控制,在保证语音质量的前提下,实现一对...     

论消防无线通信在灾害事故中的应用

无线通信技术在消防领域的应用极大地调高了我国消防部队的消防力量。文章首先介绍了短波通信、微波通信、卫星通信和移动数据通信四种常见的无线通信技术,根据统计技术的优点和劣势,提出动中卫星通信系统和无线同频同波网两种无线消防通信技术在灾害事故中应用。     

多电飞机BPCU自动测试平台总线通讯技术研究

针对多电飞机BPCU自动测试平台的开发,研究了通讯网络的整体布局与设计方案。首先分析了BPCU通讯网络使用的AFDX总线以及计算机端系统之间通讯使用的以太网技术,其次根据BPCU测试平台的整体架构设计了通讯网络以及通讯方案,采用多线程同步通讯的手段,保证了通讯系统的高效稳定。采用VC++开发环境编写了C语言程序实现了整体的通讯功能,最后通过实验验证了通讯网络的可行性。     

Group processes in solving two problems: face-to-face and computer-mediated communication

In this study, an experiment on communication and problem solving in face-to-face communication and computermediated communication was conducted. The latter was performed in two variants; subjects writing under their own name or subjects writing anonymously. The problems were a Social Dilemma problem and a Criminal Puzzle problem. The theoretical starting point was if, and how, the communication form influences social relations, communication equality and communication processes. A qualitative analysis showed that different problems were related to different patterns of the variables studied. The computer-mediated communication solving the Criminal Puzzle problem induced relatively greater idea generation that was not responded to, while the face-toface communication was associated with relatively more answers. In the Social Dilemma, feedback was relatively more common in face-to-face communication than in computermediated communication. To 'give information about the game' was relatively more common in the anonymous computer-mediated communication than face-to-face situation, indicating that computer-mediated communication is associated with speaker generation of information, but less with responses to the interlocutor. There were no outcome differences or communication equality effects related to communication condition. These results point to the importance of the task related activities in the discussions rather than the importance of medium.     

基于自适应转发的大数据通信带宽时延感知拥塞控制技术

大数据通信带宽时延会导致通信拥塞故障,影响通信网络的正常运行,为此提出基于自适应转发的大数据通信带宽时延感知拥塞控制技术。根据通信网络的组成结构和通信原理,构建大数据通信网络模型。在该模型下,采集大数据通信带宽时延,通过特征提取与匹配,感知当前通信网络的拥塞状态。针对处于拥塞状态的通信信道,在考虑通信带宽的情况下,计算拥塞控制量,利用自适应转发技术调度并分配通信带宽,在差分流传输控制协议的支持下,实现大数据通信带宽时延感知拥塞控制。通过拥塞控制效果测试实验得出结论：与传统拥塞控制技术相比,在优化设计技术的控制作用下,移动通信网络的吞吐量有所增加,带宽时延降低了149.3ms,同时通信误码率降低了0.037%,即优化设计技术在拥塞控制效果方面具有明显优势。