基于部件的涵洞CAD系统

根据涵洞CAD系统的总体设计的功能要求,结合涵洞的结构特点、涵洞设计要求及面向对象的编程方法,提出基于部件的涵洞CAD系统开发方法和涵洞CAD系统的部件划分方法,并开发了基于部件的涵洞CAD系统。在生产实际中的应用表明,该系统具有较强的适应性、可扩展性以及易维护的特点。     

基于UML的机械CAD系统开发研究

研究如何在面向对象的机械CAD系统开发中借助统一建模语言UML与CASE工具———RationalRose来建造一个健壮的和易维护的机械CAD系统.提出了UML面向对象分析在机械CAD系统开发中的一般过程.并对CASE工具在机械CAD系统开发中的应用及其优越性进行了探讨.对提高CAD软件质量及软件开发效率,促进CAD的应用与发展具有一定的理论与应用价值.     

《公路涵洞CAD系统》与PCV2000软件的优缺点

对比分析了用于涵洞设计的《公路涵洞CAD系统》与PCV 2000软件,提出它们在计算功能、出图、操作、界面及软件功能方面的优缺点。     

基于UML的Web应用程序建模的具体实现

介绍了Web应用程序的特点，采用UML方法设计了一个Web应用程序．该程序给出了UML在开发Web站点中的具体实现，体现了UML在提高软件开发效率和质量方面的重要作用．     

MSC时间表示方法与UML序列图结合建模

介绍了系统建模中的时间相关概念，以及MSC和UML序列图对时间相关概念的表示．将MSC对时间强大的表示能力和准确的表达方法应用于UML序列图．对时间进行建模．提高了UML序列图的时间建模能力，进一步满足了实际系统，尤其是实时系统建模的要求．     

基于UML的学生管理系统设计

采用统一建模语言UML,对学生信息管理系统的结构关系建模,阐述了UML在系统 中的可视化建模机制,从不同的层面给出了系统的需求分析及系统设计的整个过程,规范和 扩充了系统的数据,增强了系统交互性．     

网络考试系统分析及实现

软件工程在现代软件开发中的作用越来越大，并且发展出了很多行之有效的软件工程方法和建模语言．UML(Unified Modeling Language，统一建模语言)是一种非常流行的，支持面对对象建模方法的建模语言．本文就采用面对对象的方法以UML为建模语言，使用PowerDesigner这个case工具分析设计一个分布式的B／S结构的基于COM 和XML的网络考试系统．并使用Delphi，VBScript，ADO，XML，HTML等编程工具、语言和技术实现了这个系统．     

基于UML保险公估系统的建模与分析设计

UML作为统一建模语言,使软件开发人员专注于建立系统的模型和结构,而不是选用具体的程序设计语言和算法来实现．采用面向对象分析方法UML来实现保险公估系统的开发,探讨如何利用UML对系统进行分析设计和建模的过程,以提高该系统可视化和标准化,并保证系统的可靠性和可用性．     

UML建模和实时多线程编程探讨

面对对象开发技术中的视觉技术能非常有效地把软件开发过程视图化，并有助于实现软件的可再用性和封装性．UML建模本来是为面对对象理论而设计，但已经产生许多分枝并被广泛地应用于其他领域．包含12种模型图表的UML可以为各种应用结构建模，实时系统是其中之一．实时系统编程是很复杂的，许多实时应用系统是并行处理，要求多线程编程，本丈探讨了面向对象的视图技术．UML应用于实时系统的实用性及其怎样清晰地描述复杂的多线程进程．实时系统采用嵌入式Linux是因为它在工业当中的广泛应用，把嵌入式Linux的实时系统同UML建模结合起来是有价值的．     

一种基于CAD技术的服装纸样设计系统的开发思路

计算机CAD技术在服装设计中的应用历史可追溯到上20世纪70年代,但因服装设计本身的特殊性,国内各种服装CAD系统在应用中存在许多缺陷。使用UML技术打造一个用于服装纸样设计的人性化、操作性强的CAD设计系统。使用原型设计法,服装纸样设计师只需要选择款式与体型就能打造一款服饰,从而保证所设计的系统学习与操作的简易性。     

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