An advanced multimedia infrastructure for WWW-based information systems

We present an advanced multimedia infrastructure that integrates continuous real-time media streams within the WWW. This new service architecture focuses on advanced facilities for dealing with multimedia contents. A mediation server is at the heart of the infrastructure. It organizes and structures the multimedia information space. In addition to simple services for accessing and delivering multimedia data, it provides new functionalities for filtering and querying multimedia content. Content servers and on-line sources deliver media streams integrated within synchronized multimedia presentations. We think that the infrastructure will offer new opportunities for WWW-based information systems and electronic commerce. This revised version was published online in June 2006 with corrections to the Cover Date.     

Actors-in-Time: A Proposed Real Time,Decisional Model for Evaluating the Ethical Content of Decisions in the Financial Services Industry

A number of theoretical approaches to ethicaldecision making in the business context arecriticized as being too complex and cumbersometo be useful in day to day decision making. Byway of a potential solution, the authorspresent a universalistic, real-time model forassessing and resolving ethical decisions. Utilizing this model requires students andpractitioners to evaluate their decisionsaccording to two dimensions. In the firstdimension, stakeholders are identified aseither ``insiders' or ``outsiders' relating tothe differential advantages and/ordisadvantages a decision has on these twogroups. With the second dimension, consequences for the short term and long termfor these two stakeholder groups are assessed. The paper concludes with an illustration fromreal financial services business decisions asviewed through the model. These examplesprovide readers a sense of the model'spotential for consulting and pedagogicalpurposes.     

中小型泵站智能化技术改造探讨

在泵站技术改造中,主要就动力机选型及智能控制方式方面进行了探索,提出在对河道水位进行智能监测的基础上对动力机采用智能控制,以达到无人值班、少人值守的目的,有效减小洪涝灾害的危害。     

交通GIS道路评价以及导航的研究与展望

分析了交通地理信息系统相关的基本概念,对其GIS基本功能以及交通应用功能进行了划分。对于道路评价模块,列举了若干指标,从道路结构以及交通质量方面,对道路评价做了较详细的分析。正确及时地导航是解决道路问题的有力工具,本文结合高分辨率遥感以及国外实践,探讨了实时导航的实现问题。     

基于RFID的冷库实时监控与管理的无线网络化综合系统研究

基于RFID技术、温度传感器技术、无线及网络化通讯技术和计算机软硬件技术、管理技术,将它们有机整合实现对冷库中产品的自动化高效管理与对温度的实时监控,并能通过无线网络在全球范围内实时监管。实现了对产品的出/入库自动控制、产品存放位置的精确快速确定及数量的精确快速统计和信息的快速查询,方便了管理人员进行产品的存储统计以及查询,掌握产品流动和温度的实时监控记录的有关信息,达到了对储存产品的方便、快捷、安全、高效、保质和在全球范围内进行实时监管的目的。     

普适计算环境下的嵌入式数据库应用体系结构

嵌入式数据库技术是整个普适计算系统正常工作中的重要一环。在讨论了普适计算和嵌入式数据库的关系之后,简单介绍了嵌入式数据库的特点和关键技术,重点分析了普适计算环境对嵌入式数据库的要求及所面临的研究问题,并给出了使用DB2 EveryPlace建立嵌入式数据库系统应用的步骤,展望了普适计算与嵌入式数据库技术结合的应用前景和需要解决的一些课题。     

24/7 Hourly Response to Electricity Real-Time Pricing with up to Eight Summers of Experience

This paper provides hourly own and cross price elasticities for industrial customers with up to 8 years of experience on Duke Power optional real-time rates. We include the effects of customer characteristics and temperature conditions. Aggregated results show larger own elasticities than have previous studies, complementarity within the potential peak hours and substitution in the late evening. As customers gain experience with hourly pricing, they show larger load reductions during higher priced hours. As compared to a TOU rate, net benefits are $14,000 per customer per month, approximately 4% of the average customers bill, and much greater than metering costs.JEL classification: L51, L94, D00We wish to acknowledge helpful comments from Herb Thompson and Steve Braithwait. We also wish to thank Colin Loxley and other participants at the Rutgers Advanced Workshop in Regulation and Competition, Lake Tahoe, CA, June 2002, as well as participants at the Second World Congress of Environmental Economics in Monterey, CA, June 2002, for comments on a preliminary version of this paper. Finally, we thank two anonymous referees for helping to improve this paper.     

组态王与Delphi的DDE通信应用

在污水处理控制系统中,组态王通常用于上位机开发,但在很多情况下,组态王需要与其他应用程序进行数据交换。给出组态王与Delphi进行动态数据交换(DDE)实现实时通信的具体设计方法,从而实现上位机数据处理能力的扩展,解决了单纯通过组态王获取数据途径有限的问题。     

基于中国实时数据的产出缺口估计及其修正——兼论中国产出缺口和通货膨胀之间的预测关系

基于1994Q1-2008Q4的数据并分别利用三次趋势和HP滤波两种模型方法估计中国的实时、准实时和最终产出缺口,分析显示,这一时期中国的产出缺口遭受了较大而且高度持续的修正,说明中国的实时产出缺口和基于事后修正数据估计的产出缺口有很大不同。进一步比较实时产出缺口和最终产出缺口与通货膨胀之间的菲利普斯曲线预测关系,发现实时产出缺口的通胀预测表现显著好于最终产出缺口。由于货币政策决策总发生在"实时",不能等待事后产出缺口等数据信息的修正,因此,区分实时数据和事后修正数据对经济分析和政策决策而言可能就十分重要。     

产出与通货膨胀实时缺口对中国货币政策的系统性影响

基于HP滤波法对中国1997—2011年各季度统计数据进行分析,结果表明,产出与通货膨胀实时缺口的估算偏差能够对货币政策产生系统性影响,并引发货币政策的过度反应;而且在国际金融危机前后,这种系统性影响更加显著。因此,中央银行需要适当降低货币政策规则当中产出与通货膨胀缺口的实时反应系数,即现实的货币政策的实时反应系数应该比计量模型估算的（理论上的）反应系数更小一些。在制定货币政策时需要更加审慎,一方面进一步加强宏观经济活动的日常监测工作,另一方面要充分利用多种货币政策工具进行“微调”,同时还需要努力构筑防范外部冲击的“防火墙”。