列车自动控制系统的设计与实现

从列车自动控制技术系统的基本原理出发，设计了一种新的列车自动控制系统(ATC)．该系统由3个子系统构成：列车自动保护系统(ATP)，列车自动运行系统(ATO)，列车自动监控系统(ATS)．系统地阐述了ATP，ATO，ATS的功能及其特点，为列车自动控制技术的实现提供了一种切实可行的方案．     

利用 ASP技术实现 B/S方式的抚州旅游信息系统

运用ASP技术，设计开发了抚州旅游信息系统．系统开发采用浏览器／服务器方式(B／S)结构和SQL数据库管理系统，结合相应的编程语言完成．整个系统是基于Web技术的信息发布系统，介绍了该系统的总体结构与ASP的实现技术，实现了为旅游业的管理、旅游资源开发利用与保护、宣传及政府部门决策提供有力支持的目的。     

基于地理信息系统的公路管理信息系统

针对公路管理信息化中存在的问题，阐述了公路管理信息系统的思想，分析了将GIS(地理信息系统)技术应用在公路MIS(管理信息系统)系统中的优势。从社会大系统出发，对基于GIS的公路管理信息系统的开发进行了需求分析，确定了系统开发的目标。运用系统工程的方法，指出基于GIS的公路MIS系统的建立，关键是以网络技术和GIS技术为平台的数据库的建立；提出了基于GIS的公路管理信息系统的总体结构由数据采集模块、数据库模块等6个模块组成，并给出了各个模块的功能；建立了公路管理信息系统的框架，为进一步的研究奠定了基础。     

电力"95598"客户服务运作与管理

2001年底国家电力公司推出了面向客户的综合业务服务平台。经国家信息产业部核配的供电服务统一号码是“95598”。该系统定义是：以地(市)供电企业为核心，集计算机网络技术、自动呼叫分配(ACD)技术、计算机电话集成(CTI)技术、数据库技术以及英特网等技术于一体，实现电力客户的交互式联系，为电力客户提供信息查询、用电咨询、故障报修、投诉建议等服务。真正实现了“一口对外”的服务模式。     

GIS,RS和GPS支持下的精确施肥理论技术及展望

以精确农业为背景，在分析了“土壤-作物-养分”间的复杂关系的基础上，概括了信息技术(RS，GIS，GPS)、生物技术、机械技术和化工技术支持下的精确施肥模型。详细阐述了以遥感(RS)技术支持为主体的土壤数据和作物营养实时数据采集技术；全球定位系统(GPS)支持下的空间数据采集和控制施肥技术；地理信息系统支持下的施肥综合决策系统。探讨了当前精确施肥技术理论的进步与不足，并为结合中国国情发展精确施肥作了探索。     

全数字光纤传感测试系统的设计

为克服传统光纤传感测试系统器件分散性大、过程复杂等局限性，结合红外光电传感及物联网技术，设计了全数字光纤传感测试系统。该系统以MCU( Micro Control Unit) 为主控单元，采用红外接近传感器作为IＲLED( Infrared Light Emitting Diode) 驱动以及光电转换输出单元，ＲTC ( Ｒeal-Time Clock) 芯片及EEPＲOM( Electrically-Erasable Programmable Ｒead-Only Memory) 进行时间读取及光电数据的实时存储，WiFi ( Wireless Fidelity) 模块实现光电数据的网传、按键及LCD( Liquid Crystal Display) 显示单元完成人机交互等功能。实验结果表明，该系统可用于特殊环境下的非接触物体检测与颜色识别等场合，为进一步实现光纤传感测试系统的小型化及智能化提供了一种可行性方案。     

基于VR的数字校园系统的设计与实现

从数字校园系统的建设着手，给出了基于VR的数字校园系统的结构，探讨了基于虚拟实景技术(2DVR)和虚拟虚景技术(3D VR)开发数字校园系统的新模式及关键技术和整体开发方案．采用IBMR、3D StudioMax和Viewpoint作为开发平台构建了数字浙江师大系统，并对系统的体系结构、数据库建设、功能设计及具体实现作了较详细的探讨，给出了相应的技术实现方案。     

基于灰色系统理论的时序数据挖掘技术

阐述了嵌入知识的数据挖掘思想和数据挖掘技术现状，结合灰色系统理论首次提出了时序数据挖掘的灰色系统方法集(GDMS)，并以灰色系统中的GM(1,1)模型为例，介绍了其具体算法。应用此算法对上海市2002～2005年的上网户数进行了预测。     

基于LDAP目录服务和Java技术的邮件系统

为了使邮件系统能与其他服务共享信息，同时提高系统的安全性和可移植性，在分析邮件服务组成的基础上提出了基于LDAP(Light Diretory Access Protocol)和Java技术的邮件系统模型。在实际应用中利用JavaMail和JNDI(Java Naming and Directory Interface)技术实现了基于Qmail的Webmail系统，用JSP(Java Server Page)代替了普通的Webmail系统中的CGI(Common Gateway Interface)作为前端，在后台用目录服务替换数据库、实现LDAP与SSL(Secure Sockets Layer)的集成，所以在安全性、移植性、系统效率等方面与普通邮件系统相比都有了质的飞跃。     

代理与多代理技术:分布式人工智能研究的热点

自进入20世纪90年代以来，随着多媒体技术和因特网的日益普及，信息技术正在改变人类社会的生产方式、工作方式、生活方式和学习方式，而且这种变化还在与日俱增。计算机硬件技术、软件技术、人工智能技术、并行计算和分布处理技术的发展，为代理(Agent)和多代理(Multi-Agent)系统的研究奠定了一定的基础。源于人工智能的Agent技术受到了许多领域内学者的广泛关注。许多学者都在尝试利用Agent技术的优点为自己的研究服务。     

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

正~~