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1.
随着杭州萧山国际机场信息化应用的不断深入,对数据交换和数据共享的需求越来越强烈,信息资源整合已成为机场信息化建设的核心内容之一。文章从机场信息化的实际需求出发,论述了分布式异构数据环境下数据交换平台实现机场数据整合的构建方案,从整体架构设计、系统逻辑结构和工作机制三个方面对交换平台作了详述。目前,该平台已上线使用,并在机场信息整合中起到了良好的作用。  相似文献   

2.
随着信息技术的发展,企业的信息化进程也不断加快.在此过程中,不同时期构建的业务系统可能基于不同的操作系统和数据库平台,而业务系统对于彼此之间的数据共享需求不断提高.建立数据交换平台,实现跨网络、跨平台的异构模型下的数据交换系统,消灭“信息孤岛”成为研究的热点.本文提出的数据交换平台旨在实现治超检测站之间的治理超限超载数据(以下简称治超数据)交换和共享.本文在治超业务需求的基础上对SOA架构和Web Services技术进行了研究,运用Web Services技术搭建了基于SOA的治超数据交换平台,很好地实现了检测站之间的数据交换和共享.  相似文献   

3.
李海威 《广东科技》2012,21(13):202-203
卫生信息共享与协同平台是为卫生信息化提供一个医疗信息数据为核心的开发和运行平台,可以使用此平台快速的定制、开发和部署卫生信息平台项目,来满足日益增加的电子医疗信息共享与管理需求。其包括以下方面:基于卫生信息共享与协同平台主要包括数据中心数据层、业务服务层、数据交换层,硬件网络基础设施层四个层次,还包括贯穿四个层次的标准规范体系和安全保障体系两大体系。探索整合公共卫生服务资源的有效形式,逐步建立统一高效、资源整合、互联互通、信息共享、透明公开、使用便捷、实时监管的医药卫生信息系统  相似文献   

4.
深圳机场协同决策系统(CDM)是在采集、整合机场终端运行系统中各单位的运行和业务信息的基础上,实现信息的发布和共享,使各单位获得机场运行相同的情景意识,提供协同决策的基础平台。本文对实现该系统数据交换的Web Service进行了介绍,并重点探讨了基于REST实现方式的应用。  相似文献   

5.
XML作为一种可扩展标记语言,其自描述性使得XML本身非常适用于异构数据间的数据交换.图书馆信息化建设过程中遇到各种异构数据源问题,对其进行了整合分析,从图书馆异构数据的表现形式和整合要求出发,应用XML为中介技术对实现异构数据库的互访提出了自己的见解.  相似文献   

6.
随着当前信息化的普及,医院所具有的信息化系统,逐步被整合成具有医疗管理能力信息发展的平台,避免了旧有的管理模式在系统维护升级方面所存在的不足。当前所采用的医院信息化建设,以医疗数据交换技术,实现了医院的信息化管理。本文主要简单阐述了,这些信息技术的发展和演变,结合Web Services等技术的发展,综合地从技术和业务的两个方面进行研究。  相似文献   

7.
基于元数据的检察机关与政法部门信息共享方法研究是分析检察机关信息共享实际业务,提出并建立基于检察业务信息共享实际的元数据字典,在元数据字典的基础上建立数据交换平台,对各单位提供交换数据进行检测、清洗、分类、入库,对各单位交换请求进行数据相应.数据交换平台负责对元数据进行存储、管理和共享,同时广播发布交换数据格式,对各单位应用系统提供信息资源共享接口.系统交换平台根据各单位数据交换内容定义各元数据实体,通过元数据实体提取中心库的元数据信息,生成相应交换数据包.为确保数据安全性,系统平台对各交换数据包采用3DES加密算法进行加密控制,防止系统数据泄密.  相似文献   

8.
基于Web Services的数据交换平台的应用   总被引:1,自引:0,他引:1  
阐述了Web Services体系结构,对基于Web Services的数据交换平台模型进行探讨,提出基于数据交换平台的整合企业业务系统的解决方案,设计开发了住房公积金数据交换平台,最后使用JBuilder集成开发工具,在Tomcat应用服务器上对基于Web Services的数据交换平台进行发布和测试.  相似文献   

9.
一、统一数据交换平台概述 统一数据交换平台是收集、处理和存储各类共享数据,并为全校提供信息共享服务的平台.  相似文献   

10.
科学技术的不断进步使得信息化业务系统快速增长,由于各系统采用的技术和数据的异构性,使得业务系统数据成为信息孤岛,系统平台之间很难相互共享.为了解决数据交换的难题,该文提出一种基于TongLink/Q的消息中间件数据传输系统,通过自定义消息传输协议,设计了消息传送、接收,回执机制进行多线程动态点对点传输,实现了异构数据源之间的实时交换,保证了数据传输的安全性和可靠性,很好地解决了分布式系统数据传输需求.  相似文献   

11.
Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.  相似文献   

12.
The Williston Basin is a significant petroleum province, containing oil production zones that include the Middle Cambrian to Lower Ordovician, Upper Ordovician, Middle Devonian, Upper Devonian and Mississippian and within the Jurassic and Cretaceous. The oils of the Williston Basin exhibit a wide range of geochemical characteristics defined as "oil families", although the geochemical signature of the Cambrian Deadwood Formation and Lower Ordovician Winnipeg reservoired oils does not match any "oil family". Despite their close stratigraphic proximity, it is evident that the oils of the Lower Palaeozoic within the Williston Basin are distinct. This suggests the presence of a new "oil family" within the Williston Basin. Diagnostic geochemical signatures occur in the gasoline range chromatograms, within saturate fraction gas chromatograms and biomarker fingerprints. However, some of the established criteria and cross-plots that are currently used to segregate oils into distinct genetic families within the basin do not always meet with success, particularly when applied to the Lower Palaeozoic oils of the Deadwood and Winnipeg Formation.  相似文献   

13.
王慧 《科技信息》2008,(10):240-240
Wuthering Heights, Emily Bronte's only novel, was published in December of 1847 under the pseudonym Ellis Bell. The book did not gain immediate success, but it is now thought one of the finest novels in the English language. Catherine is the key character of this masterpiece, because everybody and everything center on her though she had a short life. We can understand this masterpiece better if we know Catherine well.  相似文献   

14.
The discovery of the prolific Ordovician Red River reservoirs in 1995 in southeastern Saskatchewan was the catalyst for extensive exploration activity which resulted in the discovery of more than 15 new Red River pools. The best yields of Red River production to date have been from dolomite reservoirs. Understanding the processes of dolomitization is, therefore, crucial for the prediction of the connectivity, spatial distribution and heterogeneity of dolomite reservoirs.The Red River reservoirs in the Midale area consist of 3~4 thin dolomitized zones, with a total thickness of about 20 m, which occur at the top of the Yeoman Formation. Two types of replacement dolomite were recognized in the Red River reservoir: dolomitized burrow infills and dolomitized host matrix. The spatial distribution of dolomite suggests that burrowing organisms played an important role in facilitating the fluid flow in the backfilled sediments. This resulted in penecontemporaneous dolomitization of burrow infills by normal seawater. The dolomite in the host matrix is interpreted as having occurred at shallow burial by evaporitic seawater during precipitation of Lake Almar anhydrite that immediately overlies the Yeoman Formation. However, the low δ18O values of dolomited burrow infills (-5.9‰~ -7.8‰, PDB) and matrix dolomites (-6.6‰~ -8.1‰, avg. -7.4‰ PDB) compared to the estimated values for the late Ordovician marine dolomite could be attributed to modification and alteration of dolomite at higher temperatures during deeper burial, which could also be responsible for its 87Sr/86Sr ratios (0.7084~0.7088) that are higher than suggested for the late Ordovician seawaters (0.7078~0.7080). The trace amounts of saddle dolomite cement in the Red River carbonates are probably related to "cannibalization" of earlier replacement dolomite during the chemical compaction.  相似文献   

15.
Location based services is promising due to its novel working style and contents.A software platform is proposed to provide application programs of typical location based services and support new applications developing efficiently. The analysis shows that this scheme is easy implemented, low cost and adapt to all kinds of mobile nework system.  相似文献   

16.
以AC-13级配为基础,将橡胶颗粒代替部分集料掺入混合料中,以低温弯曲试验为评价方法对不同橡胶颗粒掺量下沥青混合料的低温抗裂性进行研究,并引入应变能密度值对混合料的低温抗裂性进行综合评价.试验结果表明:橡胶颗粒沥青混合料试件的破坏微应变均超过2 300,满足冬寒区的技术指标;无论是否掺加橡胶颗粒,随着温度的下降,沥青混合料破坏时的最大弯拉强度增大,弯拉应变降低,劲度模量增大;弯曲应变能密度在胶粒掺量为1%左右时具有较大的弯曲应变能密度值,此时橡胶颗粒沥青混合料具有较好的低温抗裂性.  相似文献   

17.
理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。  相似文献   

18.
Quality traits in wheat (Triticum aestirum L.) were studied by quantitative trait locus (QTL) analysis in a recombinant inbred line (RIL) population, a set of 131 lines derived from Chuan 35050 × Shannong 483 cross (ChSh). Grains from RILs were assayed for 21 quality traits related to protein and starch. A total of 35 putative QTLs for 19 traits with a single QTL explaining 7.99-40.52% of phenotypic variations were detected on 10 chromosomes, 1D, 2A, 2D, 3B, 3D, 5A, 6A, 6B, 6D, and 7B. The additive effects of 30 QTLs were positive, contributed by Chuan 35050, the remaining 5 QTLs were negative with the additive effect contributed by Shannong 483. For protein traits, 15 QTLs were obtained and most of them were located on chromosomes 1 D, 3B and 6D, while 20 QTLs for starch traits were detected and most of them were located on chromosomes 3D, 6B and 7B. Only 7 QTLs for protein and starch traits were co-located in three regions on chromosomes 1D, 2A and 2D. These protein and starch trait QTLs showed a distinct distribution pattern in certain regions and chromosomes. Twenty-two QTLs were clustered in 6 regions of 5 chromosomes. Two QTL clusters for protein traits were located on chromosomes 1D and 3B, respectively, three clusters for starch traits on chromosomes 3D, 6B and 7B, and one cluster including protein and starch traits on chromosome 1D.  相似文献   

19.
As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.  相似文献   

20.
赵英华 《科技信息》2008,(12):219-220
0.Preface China has long been boasting of its colorful and immense culture which comprises of Taoism,Confucianism and Buddhism.The interwoven influence among the religions on Chinese way of thinking,on the nation's behavior in their social life throughout the long history is beyond list.  相似文献   

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