WEB数据库XML数据发布及信息提取系统

结合传统数据库和XML各自特点,在数据库到XML的数据转出、XML数据发布、信息提取这三大模块的基础上,设计了一个系统原型．同时,对研究过程中提出的关系数据库到XML数据的“相关转出”、XML转出数据的WEB服务端处理、XML数据的提取等问题和关键解决思路、技术方法做出阐述．     

基于Java的XML数据绑定

介绍了可以实现XML数据绑定的4种API接口;阐述了利用JAXB处理XML数据绑定具体步骤,最后给出了在应用程序中实现XML数据绑定的API选择方案.     

关系模式到XML文档的转换

可扩展标记语言（XML）已经快速发展为Web上数据表示、集成和交换的标准。Intemet上越来越多的数据表示为XML文档,但是,当今大多数商业数据还是存储和管理于关系数据库中。这就需要为Intemet的应用程序将关系数据高效准确的转换发布为XML数据。本文阐述XML与关系数据库的映射方法,并介绍了XML文档与数据库之间的具体转换。     

用Java集合类处理XML文档

XML，作为HTML语言的一种补充，具有如何扩展性、简单性、开放性、互操作性、支持多国语言等有一系列特性，这就使得它必将成为新一代WWW环境的主要工具，但由于XML文件只是文本文件，它本身并不带有任何的处理数据能力，因此必须辅以其它的工具来应用它。针对目前XML应用技术现状，本文提出了利用DOM（或SAX）技术一次性解析文档后，将XML文档中的层次数据提取出来通过继承Java集合类来自定义相关类并进一步处理XML中的数据。     

XML在WebGIS中的应用

对万维网地理信息系统（WebGIS）的现状和存在的问题进行了分析,重点论述了基于XML的webGIS的体系结构。从基于XML的WebGIS系统构建的角度,以WebGIS的三层结构解决方案为例,简述了XML在WebGIS数据处理中的应用。     

XML与Web数据集成及技术实现

由于HIML缺乏规范的数据表达能力,基于Web的数据集成往往很困难。要使存在于Web上的数量巨大的数据易于共享、处理,利用XML（eXtensible Markup Language）技术可以很好地实现,现有的XML技术包括XML解析器、文档对象模型、XSL等都可以很好地应用到各种平台下的Web应用程序中,从而实现异构数据集成。     

基于XML数据安全保护技术的研究

主要研究Internet环境下基于XML的数据安全问题,包括XML的访问控制、数字签名与加密技术．首先讨论数据库技术与Web技术（标准）的结合,提出基于XML的访问控制技术的论题．接着讨论基于XML访问控制模型中的授权主体和授权客体、访问授权规范以及请求者视图的计算算法,并提出一个改进的XML访问控制模型框架,使访问控制处理器不仅可以处理XML文档的“读”请求和“写”请求,而且可以根据需要增加一些“临时”的授权动怍．最后阐述利用XML对文档进行数字签名和对签名进行校验、以及对XML文档加解密的基本方法,探讨基于Java的通用平台的XML数字签名和加密原型系统X—sig的实现技术、     

基于Web的数据挖掘系统模型的探讨

Web数据挖掘是把Internet和数据挖掘技术相结合起来的一个新兴的研究领域,本文阐述了基于XML的Web数据挖掘典型处理流程.且在其基础上设计了一个具体的基于XML的Web数据挖掘系统模型并给出其结构框架和工作机理,致力于提供一个Web数据挖掘的综合处理环境,提高挖掘系统的整体性能。     

XML在GIS中的应用

从介绍GIS发展状况出发，阐述了WebGIS是当今GIS发展的热点之一，利用可扩展标记语言（简称XML）在实现信息标准化、信息统一、信息的交流与共享上有其独特的优势。论述了将XML与WebGIS相结合会推动GIS的飞速发展。最后简要介绍了基于XML的地理标记语言（简称XML）。     

函数依赖导致的XML路径冗余的判定和消除

XML数据冗余存在着很多种可能,其中路径冗余只是XML数据冗余的一种,消除XML数据冗余的方法也有很多种,如规范化的方法、基于函数依赖的方法等。本文将在已有研究的基础之上,结合XML层次结构特点,分析了路径冗余与XML树结构中结点之间语义约束的关系,并进一步给出了XML函数依赖（ FD）导致的数据冗余问题的判定定理及其消除算法。     

Markedness and its Interpretation in Language Use

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.     

Features of Women's language

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.     

低渗透非均质砂岩油藏启动压力梯度研究

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。     

On Tragic Consciousness In The Works By Ernest Hemingway

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.     

Achieving Unusual States of Matter Under High Pressure

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-     

Exchange-Correlation and Electronic Excitation Energies from Pairing Matrix Fluctuations

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-     

Density Functional Theory for the Response of Periodic Systems to Electric Fields Based on the Vector Potential Approach

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     

On the Thermodynamic Limit for Responses to Static Electromagnetic Fields

For molecular systems,the quantum-mechanical treatment of their responses to static electromagnetic fields usually employs a scalar-potential treatment of the electric field and a vector-potential treatment of the magnetic field.Although the potential for each field separately is associated with the choice of an(unphysical)origin,the precise choice of the origin for the electrostatic field has little consequences for the results.This is different for the     

An affordable accurate evaluation of the binding conformations predicted by molecular docking studies in bio-system

Franck-Condon factors bridge the gap between theoretical modeling and experimental observations for molecular electronic spectroscopy and electron transfer.Under the displaced harmonic oscillator approximation,multidimensional Franck-Condon factors are decomposed into a product of many one-dimensional(1D)Franck-Condon(FC)factors,and each 1D-FC factor is associated with one Huang-Rhys factor that determines the leading contribution of     

Call for Papers

<正>"The Journal of Shanghai Normal University:Mathematics"is published by Shanghai Normal University as regular issues of The Journal of Shanghai Normal University each year from 2014 in English.The editors-in-chief of the issues are professors Yuhao Cong and Maoan Han.The Journal of Shanghai Normal University was started in 1958 with