Responding to Academic Freedom

W. Richard Bond's “Zero Tolerance: A New Enemy of Academic Freedom?,” Michael Kubara's “Academic Freedom,” and Fred Wilson's “In Defence of Speech Codes” included in the Symposium published in Interchange, Volume 27, #2, 1996, deal with the role and importance of academic freedom in Canadian universities and the pressures both within and without the academy for its attenuation. Although the Bond paper begins with the recent controversy in Ontario universities over the attempted introduction of a policy of zero tolerance of harassment and discrimination, it quickly moves to a summary of the traditional position regarding academic freedom in which that right is balanced by a corresponding responsibility. As insistent as Bond on the importance of academic freedom, Kubara and Wilson both approach the topic in a more argumentative fashion. Kubara and Wilson differ, however, in the kinds of arguments they propound. Kubara defends the traditional liberal conception of the university and attacks what he regards as the trendy feminist attack on academic freedom. Wilson recognizes that along with the rights bestowed by the acceptance of the principle of academic freedom is an obligation to engage in rational debate. The mechanism in Wilson's view for ensuring such debate is a well-crafted speech code in which professionally unacceptable speech acts are unambiguously defined. The fundamental difference between these two positions is that, whereas Kubara advocates an academic discourse that is as unfettered as is permissible within the law, Wilson proposes stricter limitations. I will discuss the Bond, Kubara, and Wilson papers in turn, commenting briefly on their positions. I will then present my own position on academic freedom and speech codes.     

3G系统中的TURBO码交织器技术研究

第三代移动通信系统中,其编码关键技术就是Turbo码编码技术,而交织器技术又很大程度上影响着Turbo码的编码性能。本文以WCDMA和TD-SCDMA系统为例,对3G系统中的Turbo码交织器技术进行分析研究,并对相应的交织器设计方法作了总结。     

广告符码的文化研究与政治经济学批判——评加利(Sut Jhally)的广告理论

汉语学界兴盛的文化研究偏重于形式的意识形态批评,却由于学科背景的限制而多少对政治经济学的批判维度有所忽视,这一定程度上影响了文化研究的批判力度。而美国传播学学者Sut Jhally的研究接合了文化研究和政治经济学,形成广告符码阐释的双重视域,对汉语学界正在掀起的传播学与文化研究应有启发作用。     

新教师初入职阶段专业学习的教育社会学分析

新教师初入职阶段的专业学习是成功进入教师职业的关键。大量研究表明,新教师的工作实践状况和工作环境极大影响着其专业学习。国内已有研究在教师专业学习的目标、内容、途径与方法等方面进行了有益的探索。怎样理解和解释新教师初入职阶段的专业学习,进而分析其生存和发展状态？运用伯恩斯坦的教育符码、社会分工、教育话语等教育社会学理论可以为之提供帮助,也为教师教育的改革和发展提供些许建议。     

论《结构部件码》的普及性先进性及科学性

《结构部件码》是作者发明的一种汉字形码方案。本文阐述了它的普及性、先进性和科学性,得出结论:从挖掘汉字的组合规律出发,以汉字的结构规律制定编码规则及方法,以部件作为编码的材料、用汉语拼音方案的26个字母作码元(其中ZH、CH、SH用I、U、v取代)、以三种取码方式适应于部件形体变化的规律等建立的汉字形码方案是当今最佳编码方案。该项发明获国家专利.     

Iterative Decoding of Parallel concatenated Block Codes and Coset Based MAP Decoding Algorithm for F24 Code

A multi-dimensional concatenation scheme for block codes is introduced.in which information symbols are interleaved and re-encoded for nmore than once.It provides a convenient platform to design high performance codes with flexible interleaver size,Coset based MAP soft-in/soft-out decoding algorithms are presented for the F24 code.Simulation results show that the propsed coding scheme can achieve high coding gain with flexible interleaver length and very low decoding complexity.     

利用残留冗余量的联合信源信道解码在EVRC语音解码器中的应用

宽带扩频系统的语音服务采用增强型的可变比率编码器，该标准已在IS－95和J－STC－008个人移动通信系统得到应用。本致力于利用增强可变比率编码器中内在残留冗余信息的信道解码器。由于残留冗余信息可以用一阶产夫模型表示，同时相关频率的变化可以用熵率来表示，从而，信道解码器可利用这种残留冗余量。仿真结果表明，和没有利用这种信息量的解码器相比，由于编码增益，系统性能有明显改善，其中，信道编码采用了卷积码、Turbo码两种方式。     

一种新型的基于MZ的LiNbO3调制器

对基于Mach-Zehnder(MZ)干涉型LiNbO3调制器的工作原理和各种光码型产生方案进行了分析,比较了几种目前DWDM光通信系统中常见的解决方案。理论分析表明,保持偏置工作点的稳定是产生NRZ、RZ以及CS-RZ码的关键。因此,提出了一种利用低频外调制的方法实现调制器工作稳定以及码型程控可调的方案。     

金融行业信息资源优化协同配置标准的系统分析

文章采用模型分析的方法从系统论和协同学的角度透析了金融行业信息资源优化协同配置的影响因素与动力机制,围绕协同配置的目标愿景提出了金融行业信息资源协同配置过程中应当遵循的6大行为准则,透过金融信息资源协同配置主体的信源特征、主体职能、服务对象与服务愿景,逐一分析了我国金融行业信息资源协同配置的主体要素、技术要素和本体要素优化协同配置的衡量标准.