构建基于WEB平台的学生选课系统

本文介绍基于WEB平台的学生选课系统的构建与实现方法,使用B/S模式,采用VS.NET开发工具,利用ADO.NET技术,在WEB平台上实现学生选课的操作.     

基于WEB的倒立摆远程实验系统设计

本文介绍了基于WEB的倒立摆远程实验系统的设计方法,简单介绍了系统的构成和系统的运行过程,并对WEB服务器软件的实现作了详细说明。经过在校园网内测试,该系统具有较好的性能,能够满足校内学生进行远程实验的需求。     

基于LabVIEW的虚拟电路实验系统设计

电路实验是工科院校电子类专业学生的一门重要课程。基于LabVIEW图形化系统设计软件,设计开发了一套图形化的虚拟电路实验系统。系统通过LabVIEW语言编程实现了电路实验课程中常见的16个电路实验,并附带有学生账号管理系统以及实验日志记录功能,从而达到了扩展学生实践平台和为电路课程的教学提供一种新的辅助手段的目的。     

ASP.NET邮件发送技术的设计与实现

Microsoft公司推出Visual Studio.NET后,一些以前使用ASP开发WEB应用程序的程序员,正在由ASP转向ASP.NET平台递送邮件。本文阐述了利用ASP.NET和SMTP协议开发邮件发送系统的主要方法。     

提高WEB选课系统性能的方法

阐述在WEB选课系统中。为了保证系统正常、高效运行,提高WEB选课系统性能的方法．     

利用控件技术实现电子邮件的发送

利用Outlook Express、Microsoft Exchange等邮件应用程序和商业网站发送电子邮件是目前普遍的做法．但是，这些方法操作起来比较复杂，无法与应用程序相关联，结合Outlook Express的邮件服务功能，并利用相应的MAPI控件，在VFP环境开发的应用系统中实现电子邮件的发送。     

基于WEB的电路虚拟实验室的设计与实现

基于WEB的网络虚拟实验室是一种重要的教学资源,论文中分析了一个基于WEB的电路虚拟实验室平台的设计和实现过程,用户在该虚拟平台上可以采用拖曳等全交互的操作方式,可方便地完成全部中学电路的虚拟实验.     

网络教学平台上邮件智能分类系统的设计与实现

设计了一种网络教学平台上的邮件智能分类系统，阐述了该系统的设计思想、实现模型和主要算法．实验结果表明，这种邮件智能分类系统的分类准确率大于97％。     

使用AJAX和JAVA Servlet技术实现WEB系统用户监听功能

通过一个实际系统的建设，提出了一种使用AJAX和JAVA Servlet实现WEB系统用户监听功能的思路．使用AJAX异步刷新的特性和JAVA Servlet缓存技术实现的这种WEB系统用户监听功能，能够对用户登陆、登出系统进行有效的监听，既避免了大量刷新操作对服务器资源的消耗，又减少了对数据库频繁读写的依赖，达到了良好的使用效果．     

基于ESP8266的单片机网络实验系统

为了满足高校对单片机实验的网络管理和对实验结果的远程观察需要,设计了基于ESP8266的单片机网络实验系统。该系统使用ESP8266扩展了原有实验设备的无线网络部分,可以让原有实验设备链接到云端的MQTT服务器,将实验数据和实验结果传输到服务器,同时服务器的指令和管理消息也可以实时推送到实验设备上,实现了实验设备与云端服务器的双向数据推送,解决了WEB单方向的客户请求问题,具有实时性和灵活性。在云端打通了WEB服务器与MQTT服务器的通信,使得这2个服务器可以交互数据信息。WEB服务器提供网络服务,教务人员可以在Internet上通过浏览器对实验设备进行查看和管理,同时可以在远端发布命令给WEB服务器,WEB服务器再与MQTT服务器进行命令与返回结果交互,驱动实验设备和查看实验执行结果。     

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