层次分析法在数字化运维质量改进中的实践与应用

介绍了层次分析法的概念、内容及应用步骤,数字化运行现状和运维质量改进的目标。运用层次分析法质量技术方法．采取建立层次结构模型、制定重要程度比较调查表等方法,开展数字化运维质量影响因素调研和分析,确定了质量影响因素权重及要因,为改进数字化运维质量提供科学依据。结合调研分析结果和物资供应处实践,提出数字化运维质量改进对策,跟踪质量改进实施效果,强调建立长效保障机制,持续推进数字化在物资供应处的应用与发展。     

宽带卫星功率放大器失真补偿技术研究进展及应用

针对宽带卫星通信系统中高功率放大器的记忆非线性失真问题,对不同补偿技术进行 了综述,重点研究了预失真的学习结构、数据预失真、信号预失真、时频域预失真和自适应 均衡等补偿技术并对它们进行了相应的优缺点比较,最后提出了宽带卫星功放实际应用环境 下的4种补偿方案,为我国宽带卫星功放失真补偿研究提供理论参考。     

Targeting Young Voters in a Political Campaign: Empirical Insights into an Interactive Digital Marketing Campaign in the 2007 Finnish General Election

At general elections across Europe, turnout among young people tends to be significantly lower than among older voters. Therefore, this article examines a digital marketing campaign that was targeted at young voters in the 2007 Finnish general election. More specifically, this article aims to provide insights into the creative development process of a political marketing campaign and the nature of the client-agency relationship in political campaigns. The methodology adopted in this article consisted of in-depth interviews with key informants involved in the campaign planning and implementation. The results provide new empirical insights into the challenges that political campaigner may face when they target political marketing at young voters. In addition, the results suggest that there are differences between commercial and political marketing also in a digital marketing context. Finally, the results support the view that marketing professionals have a strong role in a creative development process of a political marketing campaign. The ideas put forth herein can certainly help advertising professionals to plan political marketing campaigns that engage young people in future elections and therefore aid candidates in their quest to achieve electoral success.     

Digital Preservation: Organizational Commitment,Archival Stability,and Technological Continuity

The archives of e-culture, e-government, e-learning, and e-business have grown by leaps and bounds worldwide during the last several years. Although the IT industry has invested significant time and effort to create and maintain those archives, IT professionals do not have the ability to make all digital records generated by the processes available across generations of information technology, making them accessible with future technology and enabling people to determine whether they are authentic and reliable. This is a very serious problem—called digital preservation—for which no solutions have yet been devised. This article discusses practical technologies needed for digital preservation to succeed, and describes a general framework of the life cycle of information to address this important problem so that IT professionals may find reasonable ways to preserve digital records that can be analyzed and evaluated in quantitative measures and incremental manners.     

A Portable DRM Scheme Using Smart Cards

The Internet is a relatively friendly and convenient environment for allowing music, audio, video files, and other digital contents to be copied, modified, and distributed easily. Nevertheless, from the point view of content owners, copyrights protection and intellectual property rights are critical issues that involve revenue loss. The current digital rights management (DRM) systems provide an acceptable copyright protection solution. The DRM venders usually provide a function allowing consumers to migrate their authorized license from one device to another. Still, this function is restricted by the device type and network domain, which does not completely satisfy consumers' needs. However, a successful DRM system should make consumers willing to use it. Therefore, improving copyright protection convenience for consumers is a significant issue. In this paper, a portable DRM scheme in which the usage-rights follow the consumer, but not the device, is presented for constructing a flexible DRM system that improves portability, therefore allowing users to have content use rights on any devices. In addition, an awkward storage system for encrypted data does not need to be maintained by the proposed scheme, thereby giving a more secure, cost-effective solution.     

Piracy on File-sharing Networks: Strategies for Recording Companies

In this article, we study the impact on piracy of selling music as downloadable files and the strategies that recording companies should adopt to increase profits. We find that total music sales and profits of firm (recording company) are higher, and total piracy (demand on file-sharing networks) is lower when the firm sells a downloadable version of a music track. We also look at the firm's optimal level of digital rights management (DRM) protection. We found that revenue decreases with increased protection. It is therefore optimal for the firm not to employ any DRM protection in the absence of network externality (NE). Listening to music or watching videos protected by DRM is cumbersome to users because they have to download license files and there are restrictions on the number of times the file can be copied and on the type of devices that can play the file. As a result, DRM protection is a disutility to the legal consumer and the firm must charge lower prices with more DRM protection. When NE is high and a nominal search cost is above a certain threshold, then non-zero protection becomes optimal.     

数字温度仪表的常见故障及处理浅析

本文分析了数字温度仪表的14种常见故障,对故障发生的原因及维护研究了37种解决的方法,实际工作中取得了较好的效果。     

基于VMware的数字化校园服务器虚拟化平台

随着高校数字化建设的飞速发展,多种教学、管理的应用也使得数据化校园成为高校信息化的一大难题。要支持如此庞大的应用就需要庞大数量的服务器来支持,大规模硬件平台给高校各种活动提供强大支持的同时,也带来了资源利用率不足、资源调配不灵活和管理难度大等困扰。在简述服务器虚拟化技术和虚拟化软件的基础上,探讨了如何将其应用到数字化校园的建设中。     

“校园数字化”中异构数据库集成技术浅析

随着数字化、网络化时代的来临,校园数字化已经迫在眉睫。文章介绍了数字化校园中数据集成的意义及对数据集成技术进行分析,对于校园中形式各异的数据库,如何将这些异构的数据集成起来进行信息共享,防止出现"信息孤岛",是目前校园所要解决的首要问题。文章提出了一种基于XML的异构数据集成方案,讨论了目前异构数据集成的一般框架。     

晋城互动电视自助交纳电费系统平台研究与实现

山西晋城供电分公司积极开展多元化交纳电费工作,建设互动电视自助交纳电费系统,使得数字互动电视用户足不出户即可完成用电查询、电费查询、电费交纳等事宜,有效缓解交电费难的现状。