共查询到20条相似文献，搜索用时 93 毫秒
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使用VC 程序设计语言，采取多种数据库连接方式，实现了各种实时业务资料来源从原有数据库系统到9210工程数据库系统的切换，并在Windows98操作系统下开发了能同时检索显示相同站点的报告和要素的资料校对界面。 相似文献
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使用VC ++程序设计语言 ,采取多种数据库连接方式 ,实现了各种实时业务资料来源从原有数据库系统到92 10工程数据库系统的切换 ,并在Windows 98操作系统下开发了能同时检索显示相同站点的报告和要素的资料校对界面。 相似文献
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介绍了 SYBASE数据库系统和 Sybase数据库在9210工程中的应用,并阐述了9210数据库系统的二次开发方法,以充分发挥9210系统资源的利用率。 相似文献
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介绍了SYBASE数据库系统和Sybase数据库在9210工程中的应用,并阐述了9210数据库系统的二次开发方法,以充分发挥9210系统资源的利用率. 相似文献
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在数据库应用系统开发时常遇到的问题是如何合理的设计外部进程访问数据库的时闻控制方案，在满足设计要求的响应时问的前提下。把握好系统与网络负载同系统事务响应处理速度之间的平衡关系。但在实际开发过程中对于某些类型数据的响应处理缺乏有效率的解决途径。此类数据采用通常的处理方式往往不能较好地得到解决。基于此，开发了1种由ODS API和Socket缩程的数据库ESP扩展方法，由应用系统主动查询方式变为数据库系统主动通知或推送的方式，从而提供了1种高效率的解决方案。 相似文献
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气象卫星资料处理软件再工程方法与实践 总被引：1，自引：0，他引：1
分析了现行气象卫星资料处理软件开发体制和模式的弊端,归纳并总结了卫星气象应用系统软件工程化在整体上的原则性要求,提出了风云二号气象卫星02批资料处理应用软件开发方法,对气象卫星资料应用科学研究人员、软件工程化人员和系统集成人员进行了任务界定,分析和总结了风云二号卫星02批资料处理软件再工程过程中的开发模式、准则和有关要求。最后按再分析、再编码、再测试3个阶段简要介绍了对风云二号卫星02批资料处理软件进行再工程改造的实施情况。 相似文献
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Extreme rainfall has been recorded by the larger municipalities in Denmark since 1933. National intensity-duration-frequency curves were produced on this basis for engineering application in the whole of Denmark. In 1979, on the initiative of The Danish Water Pollution Control Committee under The Society of Danish Engineers, the old municipal rain gauges for measuring extreme rain were exchanged with a modern system of gauges tabbed electronically from a central computer at The Danish Meteorological Institute.The data have revealed a geographical variability that calls for revision of the engineering application of rainfall data for design. The article describes the engineering purpose and design of sewer systems, the initial data treatment, the results from the first statistical analysis and the consequence for engineering application. 相似文献
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采用系统工程设计方法，建成分布式微机系统，将各种气象业务联成一个有机整体，其中包括各种数据采集上网，加工，分发输出并且同时提供各种不同用户进行图形显示，形成综合性的有机整体。 相似文献
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A. V. Kokorev A. V. Rozhdestvenskii A. G. Lobanova 《Russian Meteorology and Hydrology》2012,37(3):203-209
A new automated system of engineering hydrologic calculations is considered. It is intended for generalization of hydrologic
observations data over a long-term period and for practical use in projecting and design, as well as when solving various
hydrological problems of engineering hydrology. Great attention is paid: to computation of probability curves from heterogeneous
hydrometric observations data and accounting for historical information about record values of hydrologic characteristics;
to estimation of random and systematic errors of sample parameters determination and of design quantiles, what is of most
importance. The technique being the base of automated system completely corresponds to the regulatory document The Code of Rules (SP) 33-101-2003 “Determination of Major Design Hydrologic Characteristics.” 相似文献
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Seoleun Shin Jeon-Ho Kang Hyoung-Wook Chun Sihye Lee Kwangjae Sung Kyoungmi Cho Youngsoon Jo Jung-Eun Kim In-Hyuk Kwon Sujeong Lim Ji-Sun Kang 《Asia-Pacific Journal of Atmospheric Sciences》2018,54(1):351-360
An ensemble data assimilation system using the 4-dimensional Local Ensemble Transform Kalman Filter is implemented to a global non-hydrostatic Numerical Weather Prediction model on the cubed-sphere. The ensemble data assimilation system is coupled to the Korea Institute of Atmospheric Prediction Systems Package for Observation Processing, for real observation data from diverse resources, including satellites. For computational efficiency in a parallel computing environment, we employ some advanced software engineering techniques in the handling of a large number of files. The ensemble data assimilation system is tested in a semi-operational mode, and its performance is verified using the Integrated Forecast System analysis from the European Centre for Medium-Range Weather Forecasts. It is found that the system can be stabilized effectively by additive inflation to account for sampling errors, especially when radiance satellite data are additionally used. 相似文献
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数据收集系统(DCS:Data Collection System)中的数据处理和运行监视子系统主要是对指令数据接收站(CDAS:Commander Data Acquired System)通过高速网输入的经过打包的数据收集平台(DCP:Data Collection Platform)报文和平台状态信息进行解包处理和数据检验,形成DCP实时报文和DCP状态信息分类数据,并实现DCP运行状态监视,同时将各类数据入库管理,为数据服务系统向平台用户分发报文信息提供相关的数据。该系统采用软件工程方法研制,设计模块化。在运行中不断完善与改进,经过半年多的试运行,证明系统运行稳定可靠。 相似文献