重点突破:中国媒体国际传播的战略选择

国际传播能力建设怎样才能取得实际效果?国家和媒体的投入怎样才能实现效益最大化?数据对比发现,中国媒体在经济实力、人力资源数量和结构等方面与西方大型传媒集团存在较大差距,无法与之全面抗衡,宜实施重点突破战略。所谓重点突破战略,就是要对传播内容、传播渠道、传播对象等进行精心选择,将有限的资源优先用于能最有效地影响国际舆论的方面,最大限度地提升国际传播的效率和效果。在深入调研的基础上,本文对中国媒体国际传播的突破重点和突破方法分别提出了若干建议。     

Tweeting democracy? Examining Twitter as an online public relations strategy for congressional campaigns’

Considering the integral relationship between public relations and democracy (Martinelli, 2011) coupled with the growing use of social media for democratic aims (Smith, 2011) the current study examines the effectiveness of Twitter as a public relations communications tool for congressional campaigns. Specifically, as a means of testing Twitter's effectiveness in informing and engaging voters, congressional candidate and political party Twitter use for all 435 U.S. House of Representatives races (N = 1284) are compared with 2010 election outcomes. Results indicate that candidates’ Twitter use significantly increased their odds of winning, controlling for incumbency and Party ID. Additionally, significant differences between incumbents’ and challengers’ Twitter use during the election cycle emerged, which has important implications for public relations practices aimed at achieving democratic outcomes.     

Network Evening News Coverage of Environmental Risk

ABC, CBS, and NBC's carefully crafted and expensively produced evening news broadcasts devoted 1.7% of their air time to 564 stories about man-made environmental risks during the period from January 1984 to February 1986. Little relationship was found between amount of coverage and public health risk. Instead, the networks appeared to be using traditional journalistic determinants of news (timeliness, proximity, prominence, consequence, and human interest) plus the broadcast criterion of visual impact to determine the degree of coverage of risk issues. Government, industry, and citizens accounted for two-thirds of the sources cited by the networks. Experts and spokespersons for environmental advocacy groups were sparsely used as sources. Given the media's need for news pegs, acute and chronic risk stories were covered differently. Acute risk stories were reported in a clearly defined cycle, peaking on the second day with on-the-scene reports and film-clips of devastation. In keeping with a decrease in visual drama, later reports were shorter and emphasized legal and political considerations. Chronic risk coverage followed the release of new scientific, legal, or political information.     

译者的跨文化意识与译文语篇的连贯性

当今跨文化交际日益频繁,翻译作为跨文化交际的重要形式之一,在文化交流中起着愈来愈重要的作用。从译者应具有的跨文化意识(即对不同文化的敏感性)的角度,讨论原文语篇连贯的解读以及译文语篇连贯的重构,指出翻译不仅是语言的转化,更是文化的交流。     

试论交通运输行为准则的形成与发展

交通运输行为准则作为特定行业的职业规范和职业道德 ,伴随着交通运输业的出现、发展而逐步形成和发展起来。从中国古代社会的礼让文明到当代社会的“安全优质、文明服务” ,这一变化过程表现出交通运输行业行为准则的独特性和社会关联性     

前工业化时期英国地主投资工业研究

16至18世纪是英国由农业社会向工业社会转型的时期,地主阶级中的一部分人顺应了商品经济发展的要求,为攫取更多利润,他们改变原有土地经营方式,在地产的基础上从事矿业和交通运输业,从而为工业革命创造了必要的物质条件。从这个意义讲,地主是英国早期工业发展的“革新者”、“赞助者”、“投资者”和“开拓者”。     

多脉冲PPK的编码调制基本分析

分析了多脉冲ＰＰＫ编码调制方式的基本性能，给出了脉冲ＰＰＫ调制器调制的传信率计算式，指出了它的信号空间与冗余性的特点，证明了多脉冲ＰＰＫ不但优于单脉冲ＰＰＫ，而且在适当信号设计的条件下，在传信率上甚至优于二进制ＯＯＫ。     

一种适用于无线ATM通信的差错控制方案

研究了无线ＡＴＭ通信的差错控制方案，提出了应根据多媒体业务类型、速率等参数，以及移动环境等，自适应地选择合适的差错控制技术和参数的思想。文中提出的差错控制方案主要包括ＦＥＣ（可变深度的交织、卷织码、ＢＣＨ码）和限时／非限时ＳＡＲＱ等技术，计算机仿真结果表明了所提方案的有效性。     

试论我国通信企业的采购控制策略

当前，通信企业的市场竞争力愈发地体现在对成本和最终需求的反应速度上。实践证明，加强采购与供应工作，降低采购成本是通信企业价值链中的重要一环，对通信企业的长远发展与核心竞争力的提升具有十分重要的意义。为此结合通信企业的采购实践，汲取其他企业的先进采购理念，革新传统的采购控制模式，提出了基于信息化平台的通信企业采购控制策略。     

无线光通信脉冲位置调制的符号同步技术

讨论了PPM序列的符号同步原理;在分析随机PPM序列的精确符号同步概率上限的基础上,给出了一种在PPM序列中插入同步信号来实现PPM精确符号同步的方案及其数字逻辑电路实现。该方案通过改变PPM调制序列结构,按照一定的间隔在PPM序列中插入脉冲时隙肩并肩的2个相邻符号作为同步符号,通过对同步符号的检测来提取同步信号。理论及仿真实验表明,该方案能实现PPM精确符号同步。