工程设计系统信息集成技术的研究与应用

产品信息的集成和共享利用是CIMS的核心技术。在CAD／CAM系统中实现信息集成的关键技术是产品的特征建模技术和信息交换技术。本文以一个通过了国家验收的CIMS应用工程（ZMJ－CIMS）为实例,介绍CIMS应用工程中工程设计系统信息集成的方法和技术方案要点。     

计算机集成制造系统（CIMS）集成原理研究

通过对MRPⅡ工作原理及其基于集成功能的特点分析,探讨了以MRPⅡ为核心集现代管理技术,计算机与网络技术和生产工艺于一体具有先进管理思想和方法的计算机集成制造系统CIMS的集成原理,并以国家863／CIMS示范应用工程YH－CIMS为实例,分析了CIMS环境下MRPⅡ与DCS的信息集成原理。     

CIMS的发展及其在我国的应用现状

介绍了CIMS的产生背景、含义及在我国的发展，指出我国863／CIMS主题实施的CIM／CIMS内涵；总结出了CIMS技术体系，通过介绍863／CIMS应用示范工程概况阐述了CIMS在我国的应用现状。     

CIMS应用中的企业再造工程

本文从CIMS特征入手,借鉴国外“苒造工程”的思想,从设计技术、制造技术、管理技术、组织结构、管理模式、管理过程和激励一约束机制等方面,提出了CIMS环境下企业再造工程的重点。     

企业实施CIMS应用工程的可行性论证方法研究

针对企业实施CIMS应用工程的可行性论证,阐述了企业实施CIMS应用工程进行可行性论证时企业现状分析的必要性、CIMS应用工程总体规划的重要性、CIMS应用工程实施的阶段性及CIMS应用工程实施的效益性,并在上海人民电器厂CIMS应用工程的可行性论证工作中进行了实践。     

现代集成制造系统（CIMS）的研究及应用

文章对CIM／CIMS概念内涵、技术及在我国的应用进行了研究，提出了CIM／CIMS应用工程下一步的工作。     

石油化工领域CIMS体系结构研究

以大庆石化总厂化工一厂的CIMS示范工程为例,论述石油化领域计算机集成生产系统（Computer Integrated Manufacturing System,CIMS)的体系结构,以CIMS原理为指导,把CIMS工程的目标与长远发展战略相结合,给出了适合我国石油化工行业要求的CIMS的实施方案。     

四大科技工程十个科技重点专项简介

四大科技工程 1.企业信息化工程 以提高企业产品创新设计能力和现代集成制造水平为突破口,在我市传统产业广泛推广应用CAD、CIMS等先进技术.2000年CAD应用示范企业已达100家,涉及机电和汽车行业;CIMS应用示范企业已达20余家.     

CIMS中的分布式数据库解决方案

以昌河CIMS工程的销售管理系统为背景，对分布式数据库系统的应用技术进行了探讨。     

受径向约束管柱非线性屈曲的DQE法

基于圆柱面坐标,导出了受径向约束管柱屈曲的平衡微分方程,给出了详细的斜直井内管柱屈曲分析的DQE（differential quadrature element）法列式.用DQE法对斜直井内管柱的非线性屈曲进行了计算分析.结果表明：本文的计算结果与实验结果吻合;工程中受径向约束管柱的屈曲问题,由于受压段的管柱一般很长,因此是一个局部非线性稳定性问题,屈曲首先是从下端开始发生,然后随着上端载荷的增加,逐渐向上扩展的.本文所建立的DQE法可以方便地用于求解受径向约束管柱的非线性屈曲问题.     

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.     

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     

Journal of Donghua University ( English Edition) Contents of Volume 31

正~~