多种提升8051系统用电效率的微控制器

本文主要探讨使用851控制器时，如何降低功率消耗，重点介绍一种改进架构的高性能8051设计。     

如何使客户机的应用程序自动升级

将客户机的应用程序拷贝到服务器的相应表中作为数据存储，一旦服务器应用程序更新后，客户机登录时，客户机的应用程序被服务器应用程序覆盖，从而实现了客户机应用程序的自动升级。     

S1240程控交换机DSN的话务理论技术

随着我国通信技术的快速发展,程控交换机越来越普及,本文就我国应用较大的S1240程控交换机数字开关网络(DSN)的有关话务技术进行了一些研究。     

一种结构程序设计与分析的工具

本文讨论了一种新的结构程序设计与分析的方法──活动图。活动图提供了程序多层次的清晰、优良的结构与逻辑，是程序分析、设计实现、调试和维护的重要工具。本文还讨论了基于活动图的程序开发，并给出了一个实例。     

PDR节目数据库管理软件研究

为了适应PDR网络化、个人化的发展要求,本文提出了PDR节目数据库管理软件中一些关键模块的设计方案。这些方案包括实现节目列表的新型集合、符合MPEG-7标准的节目预告描述方案、统一的节目资源管理方案及其在提供电子节目单和完成预约录制方面的应用。实验证明以上各方案的性能均优于目前PDR产品所采用的相应方案。     

Computational complexity of parametric linear programming

We establish that in the worst case, the computational effort required for solving a parametric linear program is not bounded above by a polynomial in the size of the problem.This research is partially supported by Air Force Office of Scientific Research, Air Force Number AFOSR-78-3646.     

Understanding Journalism Through a Nuanced Deconstruction of Temporal Layers in News Narratives

This article proposes a nuanced analysis of the temporal spectrum in news narratives, beyond the three conventional temporal orientations (past‐present‐future), thus affording a more complex understanding of journalism and its varied storytelling patterns. Combining qualitative and quantitative content analysis of print and online news items in the United States and Israel, this framework is used to evaluate and compare different journalistic cultures and media technologies in relation to public time. Based on hierarchical cluster analysis, the article offers a definition for “news” which associates between 5 clusters of temporal layers and different journalistic roles: updating (present and immediate past/future), reporting (recent past), contextualization and ritualistic functions (midrange to distant past), analysis (near future), and projection (far/conjectured future).     

Leveraging Social Network Analysis for Research on Journalism in the Information Age

Advances in information and communication technologies connect media organizations, media content, and audiences in new ways. This essay advocates the use of a relational approach to study journalism and media in the information age. This article begins with a review of the communication network typology, highlighting its applicability to journalism studies. A review of journalism studies that use social network analysis reveals a number of new opportunities for research. Finally, the essay illustrates the heuristic value of the communication network typology and multidimensional networks for the study of journalism and media.     

浅析扬州电视台新闻制作网系统设计实施与安全策略

本文通过扬州电视台新闻类节目非线性制作网分析该非编网络的总体架构,阐述了该网络系统采用的安全措施和关键技术。最后从实践工作出发,总结了利用非编制作节目时需要注意的问题。     

基于交叉双平面技术的图像采集存储系统

设计的系统能够实现对高速、大容量图像信息的采集和存储,采用模块化的设计思想,选用现场可编程门阵列(FPGA)作为逻辑控制器件,以一片三星公司生产的容量为4 Gbyte的NAND型Flash芯片K9WBF08U1M作为存储介质.针对图像信息高速存储的要求,提出利用交叉双平面页编程技术写Flash对数据进行存储.从硬件电路及逻辑时序两个方面介绍了此图像采集存储系统,并给出了试验结果.