共查询到20条相似文献，搜索用时 250 毫秒
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使用XML实现数字签名更加体现了XML的灵活性和可扩展性,而在.NET Framwork下提供了标准的加密算法,在此条件下设计完整有效的程序,并实现了XML文档的签署和验证.同时这种实现方式以及成为提高信息安全性的必要选择. 相似文献
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夏海静 《太原大学教育学院学报》2007,25(Z1)
传统数据库处理不了现在的多种类型的复杂数据,新兴的XML技术解决了这一问题.XML是一种元标记语言,它有很多优点,如不依赖于任何编程语言、操作系统或软件供应商.在数据量小、用户少和性能要求不太高的环境下,可以将XML文档用作数据库.XML文件最重要的存储方式是原生XML数据库.处理XML文档的方式主要有SAX与DOM两种. 相似文献
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XML只描述了文档的结构,却没涵盖数据的语义,而描述数据语义的本体语言不能直接对XML数据进行表述.针对这一问题,本文给出了从XML到RDF Schem a的转换算法,使用RDF的正式传输格式RDF/XML作为媒介,通过编程以相当直接的方式把存储在标准XML中的数据转换成RDF,为语义W eb环境下的智能处理提供了帮助. 相似文献
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刘蔚林 《湖南科技学院学报》2004,25(6):159-161
电子商务、虚拟企业要求合作、分布计算、跨平台信息共享.移动Agent满足Internet应用程序移动性和开放性的要求,XML则是Internet数据描述的标准,保证异构环境下的高度互操作性.移动Agent和XML技术对移动计算中的用户界面提供了最好的支持.本文提出了应用移动Agent和XML实现的用户界面模型. 相似文献
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详细阐述了XML及其特点,并分析了图书馆数字化过程中使用XML的必要性.通过XML技术在数字图书馆建设中应用的论述,说明XML将对数字图书馆的未来产生十分重要的影响. 相似文献
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本文详述了CLETS-10.1 QTI(Question/Test Interoperability,测试互操作)规范在一个网络教学平台下考试系统的绑定过程和绑定实例.根据规范在系统中的运用,给出了评估参数的XML描述与计算的方法,提出了一种试题抽取的XML表述方案,对规范进行了扩展和改进. 相似文献
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Protocol buffers协议是Google公司开发的高效数据序列化协议.它具有与平台无关、语言无关、体积小、高性能等特点,在一些对数据实时性要求比较高的场合,XML已不能完全胜任,基于股票数据的动态变化特性,以Android系统为平台,对于XML和Protocol buffers协议从不同方面进行了比较研究,最后得出Protocol buffers在某些应用场景下代替XML可以获得更佳效能的结论. 相似文献
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何燕 《希望月报(上半月)》2007,(8):21
现XML已经成为电子商务应用的关键技术.本文首先介绍了XML的概念及其在电子商务应用中的优越性,然后深入分析了大型Oracle数据库使用XML进行数据交换的技术及过程;最后深层次思考了XML面临的问题,谈了一些笔者自己的看法. 相似文献
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使用不同系统和不同编程语言的用户要实现在Web上相互交流和共享数据,其基础就在于Web服务器采用XML标准格式在系统之间交换数据。.NET网络应用平台体系就是架构在XML之上的,在.NET体系中,所有中间文档都以XML的形式表示和传递。介绍了XML Web服务的构建的相关技术、特点及应用,对XML数据交换技术在Web应用中的作用进行了探讨,并分析了XML Web Service体系架构。 相似文献
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罗艳萍 《读与写:教育教学刊》2008,5(6)
The communication of people partially is the communication of cultures. Culture has a direct effect on international commercial activities in all aspects. Different conceptions about time, space, equality, law and the like, lead people to deal with things in different ways. So to know cultures of the counterpart is to facil-itate our enterprises so as to have a smooth and successful communication in commercial activity. 相似文献
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Richard Denner 《海外英语》2007,(4):14-15
Rosco and I wait for the fishermen to return.I sit at a wooden bench near the store at Mt.Baker Resort and watch the clouds change shape. Rosco has my belt around his neck and an eight foot tow chain hooked to a tree. Dogs must be on a leash. Ducks and rabbits are loose. 相似文献
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Given a graph G,a subgraph C is called a clique of G if C is a complete subgraph of G maximal under inclusion and |C|≥2. A clique-transversal set S of G is a set of vertices of G such that S meets all cliques of G. The clique-transversal number, denoted as TC (G), is the minimum cardinality of a clique-transversal set in G. The clique-graph of G, denoted as K (G), is the graph obtained by taking the cliques of G as vertices, and two vertices are adjacent if and only if the corresponding cliques in G have nonempty intersection. Let F be a class of graphs G such that F={G|K(G) is a tree}. In this paper the graphs in F having independent clique-transversal sets are shown and thus TC (G)/|G|≤1/2 for all G ∈ F. 相似文献
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邱崇丙 《唐山师范学院学报》2014,(1):21-23
汉字的六书,《说文》对“转注”一类,语焉不详。后世学者提及转注,也仅限于许慎所举出的例字。《汉字例说》一文,作者从转注的角度综合考虑,对部分现代常用字作了分析,跟传统的解释有所不同。希望能抛砖引玉,互相切磋,以推进学术研究。 相似文献
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《海外英语》2007,(5):10-11
Many college freshmen arrive woefully unprepared to do college work, and as disadvantaged populations continue to grow, the share of the American work force that has made it through college is expected to plummet. Many experts blame that educational failure not just on high schools but also on colleges. School & College, a special report by The Chronicle, looks at efforts to fix the system. What reforms would better prepare students for college? What should schools and colleges be doing differently? How should state and federal officials help? 相似文献
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陈美曦 《山东教育学院学报》2008,23(2):103-107
Different nations have different social cultures, and the social culture of every nation is developing with the development of the nation, language is greatly influenced by social culture, which enables language to possess national and historical characteristics. Word is the smallest, independent, meaningful linguistic unit of language. It can well reflect the national and historical characteristics. From synchronic aspect, the social and cultural influence on word meaning is mainly embodied in conceptual and associative meanings of word. The incorrespondence of word meaning is a phenomenon that exists in both conceptual and associative meanings of word among different languages. From diachronic aspect, the development of social culture causes some changes of word meaning to some extent. Therefore, social culture plays a key role in vocabulary learning and mastery of a language. 相似文献
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Rachel Zupek 《海外英语》2007,(11):40-41
我们绝大部分人都同意一件事情——我们喜欢金钱。但是你对金钱的喜欢之情足够到让你创立一份事业么?.财富通常被人忽视,主要在于人们不能真正了 相似文献
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《海外英语》2007,(4):36
There are numbers of crossroads on our long and unpredictable life journey where we totally have no idea about which direction to choose. No matter what our decision is, we should not turn back, but face the music and go ahead instead. I am this kind of girl who always does try without regretting, one example is how I dealt with my love. 相似文献