Disciplining Communication Study at the University of Illinois at Chicago, 1973–2007

This article combines a theoretical exploration of the concept of disciplinization with a practical report on the departmental history of the Communication program at the University of Illinois at Chicago. The discussion of disciplinization is supported by theories of disciplinarity taken from Michel Foucault and Max Weber among others and the departmental history is formed from archival research and in-depth interviews with faculty. The result is a model for writing departmental history that contextualizes the concept of disciplinization within an historical account of the decisions made during the course of a program's development.     

大数据在电信移动通信网络优化中的应用

互联网技术的快速发展,计算机运算处理能力的日益强大,云计算和数据中心的兴起,促使大数据时代的到来。同时,随着中国国务院于2013年年底下发4G通信网络牌照,4G时代也已到来。电信目前的无线网络包含2G、3G、4G网络,如何优化这些网络,提高用户的使用感知,树立其无线网络品牌,是目前面临的一个难题。充分有效利用大数据技术,运用到无线网络的优化中,能有效解决这个难题。首先分析了目前电信无线移动网络现状、主要的大数据分析方法、技术和应用,进而对无线移动网络采用大数据分析优化的方式方法进行研究探讨,最后展望了移动通信业与大数据技术相结合应用的广阔前景。     

基于西门子开放式工业以太网OPEN IE的数据通讯方案

针对工业网络系统数据通信的现状,提出一种基于西门子开放式工业以太网的解决方案来实现与第三方的TCP连接和ASCII数据交换。介绍了利用S7 PLC和以太网通信处理机CP所构建的系统方案,且给出了比较详细的实施流程,并已有数套成功案例应用于实际生产现场,满足了现场设备层数据通信性能指标和要求,相比标准工业以太网和现场总线...     

基于MVB的辅助电源通信系统研究

列车辅助电源系统(APS)是列车运行时的重要电气设备,而其通信系统又是APS监控系统的重要组成部分,通信系统的实时性与可靠性对于实现监控系统的实时性、网络化和智能化具有重要作用。本文基于专用于列车的多功能车辆总线(MVB)对列车辅助电源的通信系统进行了研究和设计,阐述了MVB过程数据和消息数据通信的两种方式和流程,展示了下位机APS监控与通讯模块的详细硬件设计及其PCB实物,介绍了上下位机的通信协议架构及其软件集成方式,最后对APS通信系统的运行结果进行了演示。     

分布式空频码自适应联合编译码方案性能研究

针对分布式线性分散码空频编码系统,提出了一种新的自适应编码和译码联合的方案。中继节点根据信道状况自适应选择分散矩阵和调制方式,接收端根据设定的信道条件数阈值自适应选择译码算法,并在COST207典型城市信道模型下进行了MATLAB仿真。仿真结果表明文中所提算法能够有效改善系统的性能。     

基于FPGA的频率测试系统

传统ATE比较昂贵,功率大耗电多,造成IC的测试成本偏高,针对ATE的不足之处,设计制作FPGA模块的频率测试系统,包括FPGA测试系统的组成模块,测试原理和测试方法,以及与Handler的通信设计。该测试系统占用空间小,耗电少,测试成本低,达到了节能降耗,降低测试成本的目的。     

美国南加州大学中国学院简介

文章简要介绍了美国南加州大学建筑学院中国学院,包括设立的时间、目的及发展计划等。     

What do students do in a F2F CSCL classroom? The optimization of multiple communications modes

This exploratory study analyzes how students use different communication modes to share information, negotiate meaning and construct knowledge in the process of doing a group learning activity in a Primary Grade 5 blended learning environment in Singapore. Small groups of students interacted face-to-face over a computer-mediated communication (CMC) technology called Group Scribbles (GS) to jointly complete a learning task. The lesson designers attempted to optimize the use of CMC technology and face-to-face (F2F) discussion in students’ collaborative learning, with the aim of harnessing the specific features of each medium. Building on notions from communication studies and from interaction analysis, we observed the construction and evolution of the interactions through analyzing the artifacts that were produced by a group of students – in verbal talk, gestures, and sketches drawn and text inscribed in GS. F2F and GS interactions intertwined to support collaborative learning. The findings from this study could inform design aspects concerning integrating and reinforcing the strengths of both communication modes when introducing computer-assisted collaborative learning (CSCL) in a F2F classroom.     

The Deliberative Politics of the Consultative Layer: Participation Hopes and Communication as Design Values of Civic Tech Founders

Drawing from communication as design and the spirit of technology, this study investigated the political values embedded in consultative layer companies, with particular attention to the influence of normative deliberative democratic ideals in tech design. Interviews with the founders of consultative layer tech startups explored (a) founders' visions for their technologies and how they were incorporated, (b) the imagined user groups for these technologies, and (c) expected broader outcomes as a result of using their platforms. Six interrelated themes emerged in the analysis that illuminate ideologies, ideals, and pragmatic considerations embedded in the consultative layer, raising new theoretical and practical questions about the role of communication in understanding this emerging industry and its reimagining of government in the online space.     

Social relationship on problematic Internet use (PIU) among adolescents in South Korea: A moderated mediation model of self-esteem and self-control

Despite previous research efforts on identifying the risk and protective factors of problematic Internet use (PIU), the specific mechanism among these factors are largely unknown. Thus, the present study examined the effect of adolescents’ social relationships on their PIU, as well as the effect of self-esteem as a mediator and the effect of self-control as a moderator. Survey data from 750 South Korean middle and high school students in Seoul and Gyeonggi areas were analyzed using structural equation modeling. The results are as follows. First, PIU is significantly associated with relationship with peers and with mother. Second, self-esteem did not mediate the effect of communication with mother on PIU, but was found to partially mediate the effect of peer relationship on PIU. Third, adolescents’ self-control significantly moderated the indirect effect of peer relationship on PIU via self-esteem. Through detailed analyses, this study identified self-esteem as a mediator and self-control as a moderator in the relationship between social relationships and PIU. Implications of these results for understanding the relationship among social relationships, self-esteem, self-control, and PIU are discussed.