基于FPGA的自整角机信号处理电路研制

设计实现了一种利用FPGA作为核心处理器的新方法,采用高速度、高精度的模数转换器对自整角机信号进行实时采集,通过高效算法对模数转换器采集的信号进行运算,从中提取出角度信息,实现了对自整角机信号的实时采集与处理.研究结果可替代进口产品用于特殊领域.     

电声双模式助听下听障儿童对声母、韵母、声调、扬扬格词识别研究

为了解听障儿童电声双模式助听和电模式助听下辨听声母、韵母、声调、扬扬格词识别的差异情况,采用2×4实验设计,运用计算机辅助汉语普通话言语测听系统的“声母、韵母、声调和扬扬格词”测试,调查听障儿童在电声双模式助听和电模式助听下的识别情况,比较两者之间的差异,进一步探索助听器补偿效果对听障儿童声母、韵母、声调、扬扬格词识别的影响.研究发现电模式助听受到对侧配戴助听器的显著影响,具体表现为:(1)在电声双模式助听下听障儿童对声母、韵母、声调、扬扬格词的识别均优于电模式,其中对声母和扬扬格词影响显著,对韵母和声调影响不显著;(2)电声双模式助听可以改善声母、韵母、声调、扬扬格词识别在助听器各听力补偿效果之间的差异.     

高校“校园游”管理模式思考

作为国人心中独具特色的人文景区,高校一直以其优美的环境、独特的建筑、深厚的底蕴吸引着众多的游客。但大量游客"游览"也给校园管理带来了很大困扰。文章评析当前国内各高校校园游各种治理模式,提出综合多种治理模式协同管理的建议。     

反思“实物档案”本质及其对档案工作的影响

20世纪90年代初至今,“实物档案”概念之争尚未成定论.实践中,“实物档案”概念已得到档案管理部门不同程度的认可,且“实物档案”管理工作已开展得有声有色.针对此种情况,笔者拟通过反思“实物档案”概念本质及其对档案工作的影响,抛砖引玉,推动档案学专业术语规范性建设,维护档案学术的权威与严肃性.     

The current state of human performance technology: A citation network analysis of Performance Improvement Quarterly, 1988–2010

This study conducted a citation network analysis (CNA) of human performance technology (HPT) to examine its current state of the field. Previous reviews of the field have used traditional research methods, such as content analysis, survey, Delphi, and citation analysis. The distinctive features of CNA come from using a social network analysis approach to see relational and network patterns in the citation data. This CNA found that the Performance Improvement Quarterly network showed more widely but loosely connected and less centralized structural attributes than the human resource development network; the 10 most influential articles in the field were identified; frequently co‐cited articles were recognized as having a strong relationship by subsequent researchers; and five cohesive subgroups showed key topics in the field (performance, instructional design, performance support, organization/workplace, and transfer of training). Implications from the results of the CNA were elaborated on for future research in HPT.     

SVC bitstream adaptation in MPEG-21 multimedia framework

INTRODUCTION Scalable video coding (SVC) (Schwarz et al., 2004) is the most promising video format for appli- cations of collaborative communication. First, SVC format, which is extended from the latest advanced video coding (AVC), is appropriate for creating a wide variety of bitrates with high compression effi- ciency. Second, an original SVC bitstream can be easily truncated in different ways to meet various characteristics and variations of devices and connec- tions. The scalabil…     

Expression and Reception: An Analytic Method for Assessing Message Production and Consumption in CMC

This article presents an innovative methodology to study computer-mediated communication (CMC), which allows analysis of the multi-layered effects of online expression and reception. The methodology is demonstrated by combining the following three data sets collected from a widely tested eHealth system, the Comprehensive Health Enhancement Support System (CHESS): (1) a flexible and precise computer-aided content analysis; (2) a record of individual message posting and reading; and (3) longitudinal survey data. Further, this article discusses how the resulting data can be applied to online social network analysis and demonstrates how to construct two distinct types of online social networks—open and targeted communication networks—for different types of content embedded in social networks.     

把量化管理引入学生工作中

学生管理工作有其特殊性，在学生管理工作中引入量化管理，使学生在日常学习工作中的表现，都能有一定的价值体现。从而使学生管理更加科学系统。     

学术组织社群网络信息交流特征及结构演变

[目的/意义]学术组织是研究人员获取信息资源的重要渠道,考察学术组织社群网络信息交流的特征,有利于更好地发挥组织虚拟社区信息传播的作用,为促进信息共享和知识创造服务。[方法/过程]选择互联网研究者协会为研究对象,以该协会2001-2016年的邮件组存档为数据源,采用社会网络分析方法,分析社群交流网络的主要指标并可视化展示整体网络结构。[结果/结论]研究发现,学术组织社群的网络信息活动具有长尾分布特征,形成多层次的核心-边缘等级结构,随时间推移网络中的凝聚子群结构由密集趋于松散化,反映出从快速发展时期、稳定期到衰退期的历程。指出学术组织需要加强信息建设职责,确保核心成员对虚拟社区的持续关注和治理,营造良性互动的信息生态系统。     

唐宋前之古酒述略

中国酒的原始发明人很难断定,但比较合理的推断是起源于上古时期粮食的自然发酵.黄帝、仪狄、杜康等都是自觉酿酒并有所创造的人.商朝发明了曲和蘖.周朝的酿酒技术已达相当水平.汉代的酿酒业进一步发展,这主要表现在酒曲制作技术的改进和酒类的增多.唐代酒业更加兴旺发达,并创造出以“春”命名的名酒系列.宋代酒业发展的新趋势是长江以南广大地区酒业生产的迅猛崛起,尤以江苏酒业最为发达,并形成了“川黔名酒带”.