浅谈任务管理系统中任务调度的实现

本文介绍了任务管理系统在业务管理平台中的应用,阐述了任务管理流程、批量任务队列和任务线程的概念,并侧重分析了任务分析器、队列管理器、任务接收器、任务管理池等各个部分在任务调度实现中所起到的作用,以及任务调度的具体流程和实现方法。     

IEC 61850在输电线路纵联保护应用的研究

文章在分析和理解IEC 61850标准的基础上,探讨输电线路的纵联保护功能的建模方法,给出了输电线路纵联距离保护模型的实例.同时.分析了基于IEC 61850映射子集MMS以及ASNI.1的纵联保护通信模式,给出了基于面向对象编程语言C 的纵联距离保护关键类PDIS及PSCH的实例代码.     

IEC61850在输电线路纵联保护应用的研究

文章在分析和理解IEC 61850标准的基础上,探讨输电线路的纵联保护功能的建模方法,给出了输电线路纵联距离保护模型的实例。同时,分析了基于IEC61850映射子集MMS以及ASNI．1的纵联保护通信模式,给出了基于面向对象编程语言C＋＋的纵联距离保护关键类PDIS及PSCH的实例代码。     

移动增值服务在车辆违章管理中的应用

多媒体信息是以WAP为载体，通过移动运营商的GPRS网络，传送包括文字、图像、声音等各种多媒体格式的信息，实现即时的手初端到端、手机终端到互联网或互联网到手初终端的多媒体信息传送。本文提出了—个基于MMS的交通违章查询系统。通过此平台，客户可以方便、及时地知道自己的违章信息。     

GPRS DT/CQT测试中异常问题分析

GPRS网络承载了多种无线数据业务,由于各种业务涉及网元较多,如何保证用户的端到端使用感受是网络优化工作的重点.GPRS DT/CQT测试模拟终端用户使用环境,便于定位网络故障,本文主要介绍DT/CQT测试中异常问题的定位与分析.     

Messaging specifications, properties and gratifications as institutions: How messaging institutions shaped wireless service diffusion in Norway and Japan

We address the following question: why have a large number of mobile services been successful in Japan but received only lukewarm response in Norway despite Norway’s lead in the late 1990s in wireless messaging? Current explanations are not sufficient in explaining this dilemma. We approach mobile service diffusion through the lens of new institutionalism by analyzing how messaging institutions emerged both on supply and demand sides that enabled and constrained mobile service innovation. A tripartite framework of institutional fields consisting of architectural service specifications, service properties, and use gratifications is formulated. Using secondary data we show that mobile service specifications in Japan integrated better interpersonal communication and data services and thereby allowed instrumental and aesthetic properties to align with expressive properties of messaging. In Norway disjoint service specifications caused service properties and gratifications to remain disconnected, which inhibited data service adoption and channeled data service adoption towards simple SMS based messaging solutions. Differences in service specifications and prospective gratifications not only account for differences in overall service diffusion, but offer valuable insights into institutional forces that shape complex mobile service innovation.