首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 31 毫秒
1.
针对当前WEB信息查询系统应用广泛且查询需求复杂的现状,论文给出构建可复用WEB信息查询系统的设计框架.在设计过程中,充分采用当前先进成熟的设计方法和技术,如XML、XSLT、Web Service、Enterprise Library等.此框架能实现异构数据查询、自动分析业务类型、统一的数据访问和共享查询条件界面及显示查询结果界面.在此基础上,开发人员通过简单配置和少量代码编写即可快速开发出满足客户需要的WEB信息查询系统.此框架复用度高,应用到查询系统中能提高开发效率,降低维护成本,而且构建的系统具有高扩展性和可移植性,极大地减少WEB查询系统的开发和维护工作.  相似文献   

2.
农用车配件管理信息系统开发   总被引:1,自引:0,他引:1  
在分析农用车配件销售业务流程及其信息层次化特点的基础上,利用数据库设计理论和层次技术原理,采用规范化和反规范化设计相结合的方法,借助PowerBuider8.0的Treeview控件完成了树型数据向关系型数据的转化,所开发的基于客户/服务器结构农用车零配件管理信息系统。TPMIS1.0简洁、实用,实现了农用车零配件信息的动态存储与管理,界面友好、操作方便。  相似文献   

3.
张楠  张海燕 《山东科学》2011,24(3):69-74
针对出行示意图的开发,提出了一种基于OpenLayers和TileCache开源技术的WebGIS设计方案。借助OpenLayers的功能实现示意图的展示,采用TileCache实现示意图的缓存机制,降低了开发难度和成本,提高了显示性能和界面功能,获得较好的客户体验。  相似文献   

4.
分析了富客户端电子商务应用的特点,说明了利用谷歌公司的网页开发工具包GWT来开发富客户端电子商务应用框架的一般方法.在生成的框架基础上,通过实例阐述了富客户端电子商务应用系统的开发过程,重点包括客户界面的设计与系统功能的实现.实践表明,GWT是目前用来实现富客户端电子商务应用系统最有效的工具之一.  相似文献   

5.
章印 《甘肃科技》2014,30(17):16-18
目前电子商务网站争夺用户的竞争愈演愈烈,用户的浏览兴趣、行为模式是电子商务从业者关注的重点。充分利用数据挖掘技术,可从Web服务器日志文件和客户交易数据中,挖掘出有意义的用户访问模式和潜在的客户群。首先介绍了Web使用挖掘及其过程,然后分析了应用于电子商务用户行为分析中的Web使用挖掘技术,最后从制定网络营销计划、降低客户开发成本、争取最高限度利用现有客户和为客户定制个性化界面4个方面阐述了Web使用挖掘技术在电子商务用户行为分析中的应用。  相似文献   

6.
余才雄  刁鸣 《应用科技》2011,38(1):30-33
通过分析目前市场上主流的嵌入式图形库,采用移植第三方图形库MiniGUI,实现STLinux高清机顶盒上的图形用户界面(GUI).在界面的整体规划中,充分考虑到OSD数据与程序逻辑的可分离性,提出了对OSD数据采用XML语言描述;通过移植mini—XML对属性数据文件进行解析,实现了程序数据到代码的重定位.该方法克服了传统界面开发模式中频繁编译调试的缺点,在OSD开发中具有很强的实用性与高效性.  相似文献   

7.
徐春雪 《科技信息》2010,(35):J0077-J0077,J0105
本音像租赁管理系统,是典型的信息管理系统(MIS),其开发主要包括数据库的建立和维护以及前端界面应用程序的设计开发两个大方面对于前者,要求建立数据的一致性和完整性强,数据安全性好的数据库.而对于后者则要求应用程序功能完备,界面简捷,易操作等特点。  相似文献   

8.
该系统设计能实现界面层和逻辑、数据层的分离,用户可很快的改动界面,做出程序而不用改动程序代码.在以后类似的系统开发中主要的工作是在目标地区的数据处理,而不是系统编码,这样,用较短的时间就可以开发出一个类似的系统,便于在其他城市推广使用。  相似文献   

9.
在油气田的勘探开发中如能及时发现油(气)水界面,能够防止和杜绝因水浸而造成的喷、涌、卡、漏以及钻井液严重污染等复杂事故的发生,为油气田下一步的勘探开发方案提供及时的参考数据。阐述了录井参数的变化在判断油气水界面的应用,对各种录井参数进行了分析,总结出这些参数与油气水界面之间的关系。  相似文献   

10.
根据目前粮情管控系统上位管理中心计算机存在的问题,提出一种基于组态软件设计上位管理中心计算机监控界面的方法.根据粮库的情况,运用组态王6.53设计开发了系统主界面、每个粮仓的分界面、报警界面、实时数据报表界面、历史数据报表、粮仓中温湿度检测节点界面等.仿真实验表明,该上位机界面具有生动、逼真、实时、数据准确率高等优点,...  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.
何延凌 《科技信息》2008,(4):258-258
Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women's language from these perspectives: pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women's language, more attention should be paid to language use in social context. What's more, the linguistic phenomena in a speaking community can be understood more thoroughly.  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 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   

15.
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   

16.
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   

17.
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   

18.
正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-  相似文献   

19.
We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-  相似文献   

20.
正The electronic and nuclear(structural/vibrational)response of 1D-3D nanoscale systems to electric fields gives rise to a host of optical,mechanical,spectral,etc.properties that are of high theoretical and applied interest.Due to the computational difficulty of treating such large systems it is convenient to model them as infinite and periodic(at least,in first approximation).The fundamental theoretical/computational problem in doing so is that  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号