基于MAS和WebServices的企业信息系统开发研究

本文首先概述了MAS和Web Services 技术背景下的企业信息系统模型，然后分析了基于MAS和Web Services的企业信息系统研发的关键问题及相应的解决途径，最后统筹MAS和Web Services 的技术优势，提出了基于MAS和Web Services技术的企业信息系统研发政策建议。     

基于Web Services的现代物流信息平台的构建研究

分析了传统企业应用集成技术中存在的弊端和不足,提出采用基于Web Services为技术路线的企业应用集成方案.在实现信息系统之前,先就系统使用的Web Services架构进行了深入的研究,从总体上介绍并详细分析了Web Services架构,阐述了Web Services的概念、模型和协议栈,并分析了它在现代物流企业的应用模型,然后在系统分析阶段对联托运的核心业务流程进行了分析,并确定了系统的开发原则和工具.     

Web Services与XML技术在PDM集成应用中的研究

应用Web Services的集成技术,构建了一种基于Web Services的PDM集成框架,并实现了PDM功能模块的Web Services封装,从而提供了一种PDM系统与企业应用系统间的动态集成的方法.分析了XML技术在PDM集成中的作用,并在基于Web Services的PDM集成框架上,利用XML数据交换技术实现了PDM与制造信息系统的信息集成.基于Web Services与XML的PDM集成技术的研究实现了不同的软硬件系统的集成和分布数据的透明访问.     

基于Web Services的可复用数据访问层的设计与实现

在Web Services的体系结构和关键技术基础上，提出了一个基于Web Services的数据访问服务的数据访问层的架构，并对架构进行了可复用的研究与实现．该架构可以方便地复用于各种已有的系统以及新开发的信息系统．     

对Web服务相关安全规范的研究

Web Services是在现有的各种异构平台的基础上构筑的一个通用的与平台无关、语言无关的技术层,各种不同平台之上的应用可以依靠该技术层来实现彼此的连接和集成。Web Services技术的发展使信息系统的安全理论受到了极大的挑战,因此,对Web Services架构下安全技术的研究有着重要的意义。     

基于QoS的Web Services发现

出于对组合Web服务中QoS管理的目的。对WSDL进行扩展提出了新的服务描述语言，并扩展了Web服务的角色，提出了服务代理角色，在传统的Web Services架构的基础上进行扩展给出了一个改进的Web Services架构，最后给出了原型系统的实现方案和试验；并对试验结果作了分析，得出了改进后的Web service架构在服务发现时性能、效率优于传统的Web services架构。     

基于Web Services构建分布式高校信息系统

随着信息和网络技术的发展，信息化建设已成为高校的一项重要基础工作．本文系统分析了当前高校信息系统的现状和存在的问题，提出了基于Web服务(XML Web Services)技术构建分布式高校信息系统的架构和建设思路．     

Web Services在网络考试系统中的应用

基于Web Services技术的网络考试系统能有效地整合基于C/S架构和基于B/S架构的网络考试系统的优点,结合Web Services的技术架构的特点和网络考试系统的实际开发经验,重点讨论了如何采用Web Services技术来实现网络考试系统,最后分析了Web Services技术的应用前景。     

B/S系统的用户权限设计与实现

针对B／S系统中的用户权限访问控制的问题,提出了一种基于角色访问控制和Web Services技术的用户权限设计。利用角色访问控制技术可以有效地实现用户访问权限的动态管理,而Web Services提供的高度互操作性和访问性能够很好地完成对用户权限的验证。在某油田无线数据管理信息系统中,将两者结合起来,取得了较好的效果。     

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     

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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