基于分布式PowerBuilder应用的协同交互式远程教学技术

讨论了基于Web的协同交互式远程教学的工作原理以分布式PowerBulilder应用程序的工作机制，提出一条反分布式PowerBuilder应用与Web技术结合，实现协同交互式远程教学途径和方法。其特点是后端数据库无关性和跨服务器、跨操作平台开发的高效性和可移植性。     

面向对象的客户机／服务器应用软件的开发平台—PowerBuilder

介绍了最新的客户机/服务器应用软件开发平台PowerBuilder，着重突出了其面向对象程序设计的特色及支持多数据库的能力。     

用面向对象技术设计储层数据库系统

论述了利用面向对象技术进行储层数据库设计的方法和技术，根据系统设计实例，给出了逻辑模型，概念模型的构造方法，介绍了一个利用面向对象技术斌发的储层数据库软件系统的设计技术及应用效果。     

用面向对象技术设计储层数据库系统

论述了利用面向对象技术进行储层数据库设计的方法和技术，根据系统设计实例，给出了逻辑模型、概念模型的构造方法，介绍了一个利用面向对象技术开发的储层数据库软件系统的设计技术及应用效果。     

面向对象系统分析的设计在数据库系统开发中的应用策略

作者根据其成功开发数据库应用系统的经验体会，并结合国内较有权威的面向对象技术专著的指导，系统地介绍了面向对象技术在数据库应用系统开发时应采取的策略。对ＭＩＳ系统开发人员从面向过程分析和编程过渡到面向对象的分析和编辑有很好的借鉴作用。     

面向对象和数据库技术相结合的探讨

分析了关系型数据库的缺点,阐述了面向对象开发方法的优点及面向对象技术应用到数据库中的优势,对面向对象数据库的应用价值和前景进行了展望。     

面向对象的数据库系统设计的若干技术及安全性研究

分析了面向对象技术在数据库系统设计的一些技术，然后介绍了面向对象数据库的安全性，着重阐述了OO方法在现代企业的信息管理系统开发过程中的应用，并以工作流为例进行了说明。     

浅变面向对象的数据库

面向对象的数据库是面向技术和数据库技术相结合的产物，它的模型优于关系模型，文章对面向对象数据库，并系数据库和面向对象语言进行了比较，并讨论了面向对象数据库的发展趋势。     

ASP/ADO访问Web数据库技术与应用

阐述了Windows操作系统中IIS内含的ASP和ADO技术的结构与特点 ,总结了采用ASP技术访问Web数据库的步骤 .并结合目前我校校园网与远程教学的发展 ,给出了在基于Web的自主学习远程教学系统中 ,使用ASP与ADO技术相结合访问答疑数据库的应用实例     

基于OODBMS的设计方法在智能数据库中的应用

在面向对象的方法和人工智能数据库这两种技术的基础上 ,分析了现代数据库的特点 .总结了面向对象的分析方法在数据库管理系统应用中的优点 .说明OODBMS是数据库智能化的一种很好的方法 .用OODBMS方法使数据库智能化是数据库发展的一个重要方向 .并用图形数据库实例说明了面向对象的方法在智能数据库中的具体应用     

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     

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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Brief Introduction to “Journal of Jilin University( Science Edition) ”

<正>"Journal of Jilin University(Science Edition)"is a comprehensive academic journal in the fields of science sponsored by Jilin University and administrated by the Ministry of Education of the Peoples Republic of China.The journal started publication in 1955.The original name at starting publication was"Journal of Natural Science of Northeast People University",which was changed into"Acta Scientiarum Naturalium Universitatis Jilinensis"in 1958 owing to the name change of the university.The present journal name has