J2EE架构下网络选课系统的设计和实现

J2EE是一种利用Java2平台来简化多级企业解决方案的开发、部署和管理的体系结构,使得部署在J2EE平台上的多层应用能够实现高可用性、安全性、可扩展性和可靠性．对实际应用的J2EE分层结构进行了详细分析,给出一种J2EE架构下的多层应用模式。并通过网上选课系统的设计详细介绍了该模式下的具体开发方案.     

基于J2EE的专家选调系统的研究与应用

J2EE是当前建立和开发各种Web应用的主流平台,MVC(模型-视图-控制)体系结构是当今设计交互式应用的事实标准。文中通过J2EE体系结构框架分析,结合Struts MVC在J2EE Web中的应用,通过用户表示层、业务逻辑层和控制处理层等层次的明确划分,阐述各层的功能作用以及层与层之间的关系,并针对具体业务给出了实现的部分具体内容,介绍了J2EE环境下开发专家选调系统的具体方案。     

基于MVC模式的Web管理信息系统分析与设计

为了有效地提高Web应用程序的可重用性、可维护性和可扩展性,在目前基于J2EE架构开发Web应用的技术基础上,结合MVC结构的方式来构建Web应用系统.论述了基于MVC结构的开发平台和采用J2EE中的JSP,Servlet,JavaBean以及JDBC技术来构建该平台的基础组件框架,探讨了基于MVC结构的通用化Web应用平台的设计与实现,研究了基于MVC模式的Web管理信息系统分析与设计以及对该管理系统的运行体系结构、技术实现方案、系统功能需求描述、系统设计中的一些关键技术.     

基于J2EE的牵引网巡检管理系统的设计与实现

J2EE作为新一代企业应用开发平台,具有显著的优势,正被越来越多企业所采用。通过对J2EE框架及Struts技术主要特点的介绍,对接触网巡检管理的基本特点和具体要求进行了详细分析,最后给出了基于J2EE的接触网巡检管理系统的设计和具体实现方案,为企业的J2EE应用开发积累了实际经验。     

基于J2EE技术的工作流管理系统

根据工作流参考模型,结合J2EE技术,提出了一个基于J2EE技术的工作流管理系统,并详细讨论了系统的具体设计与实现.系统采用J2EE,XML和Web技术,具有良好的可重用性和跨平台性.     

基于J2EE的工作流管理系统的研究与实现

本文在分析了工作流参考模型的基础上,提出一种基于J2EE的工作流管理系统,并给出了具体的设计与实现.系统基于J2EE平台,采用Java、XML和Web服务技术,具有良好的柔性、可重用性和跨平台性.该系统应用于实际的系统开发中,取得了良好的效果.     

J2EE平台上的PDM系统构件设计

针对虚拟企业对产品数据管理及信息共享的需求，提出一种利用新的分布式构件开发及部署平台——J2EE(Java 2 enterprise edition)建立面向虚拟企业的柔性PDM(product data management)系统构件的方法．结合柔性PDM系统的体系结构，分析了构件的设计模式，并详细介绍了柔性PDM系统构件的设计方案和部署步骤，利用J2EE技术可以实现PDM功能的柔性扩充及系统的柔性集成特点．     

基于J2EE的网络课程的设计与实现

简要介绍了J2EE体系结构,提出了采用J2EE技术体系为结构框架进行网络课程开发的设计思路,详细描述了利用J2EE技术体系进行系统开发的过程,结合实例说明利用MVC模式进行Web应用开发及EJB组件的开发情况.     

基于Web的网上书店管理系统设计

网上书店管理系统就是基于J2EE技术而开发出来的一个B／S结构Web应用系统。本系统是在J2EE平台下主要以Java、HTML语言为主,以Microsoft公司的SQLServer2000为数据库服务器,在IBM公司集成开发环境WSAD下主要使用JSP技术开发的具有Brower／Server结构的Web项目。本文的主要工作主要集中在以瀑布模型的方式描述了网上书店管理系统的开发过程．描述了系统的需求分析、概要设计及数据库设计。     

Web下的文档管理系统研究及应用

针对现有C/S文档管理系统的缺点和文档管理的实际需求,提出了以Web和J2EE技术为集成框架,实现分布式文档管理系统功能;介绍了基于Web的文档管理系统的设计方法及其体系结构,以面向对象的思想,分析了利用J2EE中间件技术和Web的三层B/S计算模式实现文档管理的关键技术并给出具体的实现方法;最后给出了系统的实际应用案例.     

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     

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     

Journal of Donghua University ( English Edition) Contents of Volume 31

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