基于PDM的集成化CAPP系统的研究和开发

ＰＤＭ技术是在数据库基础上发展起来的一门管理所有与产品相关的信息及过程的新技术,越来越多的企业采用ＰＤＭ作为ＣＩＭＳ工程集成框架．ＣＡＰＰ是ＣＩＭＳ中的一大关键技术,它的发展直接关系到ＣＩＭＳ的集成效果,因此研究和开发在ＰＤＭ集成框架上的工艺辅助设计及管理系统显得非常迫切．本文介绍在美国ＥＤＳ公司的ＰＤＭ产品ＩＭＡＮ集成框架上开发的ＳＧＷＣＡＰＰ系统,进一步研究了在ＰＤＭ框架上面向产品对象的集成化ＣＡＰＰ系统的工艺设计方法和集成管理的实现机制     

基于PDM技术的制造业集成框架研究

指出了ＣＩＭＳ从信息集成向过程集成发展的必然性,分析了“过程集成”的内涵以及对制造业发展的影响。以上海飞机制造厂需求为背景,探讨了利用产品数据管理（ＰＤＭ）技术构成的制造业集成框架的体系结构,解析了该框架的特点。阐述了基于ＰＤＭ技术集成框架发展中集成框架与集成平台的关系,异地设计、异地制造与并行工程的关系,ＰＤＭ技术与ＰＤＭ软件的关系以及以往ＣＩＭＳ中与ＰＤＭ技术中“集成”概念的关系。提出了ＰＤＭ技术应用过程中急需解决的问题。     

CIMS中集成MIS的设计及实现

本文基于ＳＯＩＳ（单项业务信息系统），从工程应用角度出发论述了开发集成ＭＩＳ（管理信息系统）的原理、体系结构及工程实现方法，如面向对象的问题求解与程序设计方法、混合编程与变参（实参、形参）策略等．利用文中介绍的方法设计的集成ＭＩＳ具有与ＣＩＭＳ良好的适应性和较强的工业应用价值．     

液压元件CAD／CAPP／MIS集成技术研究

数据集成技术是ＣＩＭＳ的关键,本文给出了液压元件ＣＡＤ／ＣＡＰＰ／ＭＩＳ集成框架,提出了基于特征的产品定义模型及造型方法,并讨论了数据管理中的数据库技术。     

冶金企业CIMS体系结构的研究

冶金企业ＣＩＭＳ体系结构的研究唐立新，王梦光在分析冶金企业生产工艺和生产管理的特点基础上，指出冶金ＣＩＭ的特点，并提出了冶金ＣＩＭＳ体系结构，最后运用集中管理／分散控制的分级控制策略设计了体系结构中的逻辑结构和物理结构．冶金企业CIMS体系结构的研究@唐?..     

服装计算机集成制造系统的信息集成方案

服装ＣＩＭＳ实现的关键在于信息集成．本文提出了一种服装ＣＩＭＳ的信息集成设计方案，具体地阐述了服装生产全过程的规划与控制的信息集成，以及服装ＣＩＭＳ各子系统信息集成的方法，同时还介绍了服装ＣＩＭＳ信息集成的核心支撑子系统──数据库系统的设计．     

流程行业CIMS工程信息集成方法研究

从某厂ＣＩＭＳ工程实际出发,分析了流程行业信息集成的特点,制定了总体设计思路和实施方案;在给出该厂ＣＩＭＳ的体系框架和支撑结构环境下,着重讨论了信息集成方案的实现。     

CIMS环境下的信息集成

ＣＩＭＳ 实施的关键是集成。该文以国家８６３／ＣＩＭＳ 应用示范工程ＹＨＣＩＭＳ的实施为背景,根据企业的特点和内外部环境,通过ＣＩＭＳ环境下系统信息流的分析,阐述了ＹＨＣＩＭＳ信息集成的内容和相应的集成方法。     

巨微CIMS体系结构研究

计算机集成制造系统是国家“８６３”计划自动化领域的主题之一。文中对批流程型ＣＩＭＳ系统的总体结构进行了讨论,在此基础上给出了巨微生物工程有限公司（以下简称巨微）ＣＩＭＳ的应用体系结构及支撑结构,并分析了开发流程型ＣＩＭＳ的关键技术。     

CIMS中的集成支撑技术

ＣＩＭＳ中的集成支撑技术董逸生集成是ＣＩＭＳ的灵魂，ＣＩＭＳ正是通过集成才使一个制造业中的各种过程有机地连接起来，从而增强了企业的整体性及灵活应变能力。系统集成的理想目标是单一系统映像（ＳＳＩ－ＳｉｎｇｌｅＳｙｓｔｅｍＩｍａｇｅ），即所有系统成分间的...     

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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