微电子工艺,器件CAD＋CAI交互系统的开发

微电子ＣＡＤ（计算机辅助设计）＋ＣＡＩ（计算机辅助教学）ＦＯＲ ＷＩＮＤＯＷＳ ＰＣ交互系统的开发成功，对微电子ＣＡＤ技术的推广应用及高等学校的教学应用等各方面有着极其重要的作用。本文介绍了该系统的开发思路、功能结构及科研与教学的交互性。     

系统化的机械产品计算机辅助设计（SCAD）方法的研究

通过将系统化的工程设计方法与ＣＡＤ技术相结合，提出系统化的计算机辅助设计（ＳＣＡＤ）方法。并研究了ＳＣＡＤ所包含的四个阶段－计算机辅助产品规划（ＣＡＰＲＰ）、计算机辅助概念设计（ＣＡＣＤ）、计算机辅助具体化设计（ＣＡＥＤ）和计算机辅助详细设计（ＣＡＤＤ）的一些具体实施方案，形成了ＳＣＡＤ技术的基本理论框架。     

一个基于多媒体的CAD学习系统

介绍了一个新型的使用多媒体的计算机辅助ＣＡＤ学习系统设计方法和实现技巧．它采用了经过改进的“事件驱动”机制，实现了和常规ＣＡＤ系统类似的交互界面，并实现了对用户操作过程的记录和重新演示执行     

矿山地质绘图系统MGS的研究与开发

应用ＡＤＳ技术开发矿山地质绘图系统ＭＧＳ。以ＡｕｔｏＣＡＤ为支撑环境,通过ＡＳＥ／ＡＳＩ技术实现地质工程数据库的创建与管理,开发多种地质辅助绘图工具。在数据库和辅助绘图工具支持下,ＭＧＳ实现绘制地质图件、圈定矿体、计算品位和切割地质图形等多种功能。     

基于 STEP 机械零件的 CAD/CAPP/CAM 集成工具

ＳＴＥＰ标准是国际标准化组织正在开发的计算机集成制造系统信息集成的产品数据表达与交换标准。以ＣＡＤ／ＣＡＰＰ／ＣＡＭ系统为背景，开发了ＳＴＥＰ信息集成工具ＰＭＳＳ。为了使产品数据操作方便与灵活，该工具可以对产品数据进行查询、修改及ＳＴＥＰ文件的重构，并提供ＳＤＡＩ接口、Ｃ语言的调用，以及ＳＴＥＰ中性文件的前／后处理器设计手段，使ＣＡＤ、ＣＡＰＰ、ＣＡＭ各功能子系统方便地达到集成与共享。     

脑电地形图在糖尿病性脑血管病中的应用研究

对３１例糖尿病患者同时进行了脑电地形图（ＢＥＡＭ）和脑电图（ＥＥＧ）观察，ＢＥＡＭ的典型改变是双侧多部位、不对称性的慢波功率谱增高；部分病例做了ＣＴ和经颅彩色多普勒（ＴＣＤ）检查；上述方法对糖尿病性脑血管病变检出的阳性率分别是ＢＥＡＭ为８０．６％、ＥＥＧ为２９．０％、ＣＴ为４１．６％、ＴＣＤ为６１．５％，提示ＢＥＡＭ较ＥＥＯＣＴ和ＴＣＤ更为敏感，因而ＢＥＡＭ有可能成为一种早期诊治及预防糖尿病性脑血管病的无创伤性客观检测手段。     

无线INTERNET市场浅析

无线Ｉｎｔｅｒｎｅｔ正与ＷＡＰ、ＧＰＲＳ、Ｗ－ＣＤＭＡ这些概念联系在一起,成为人们议论和关注的焦点。现在基于 ＷＡＰ、 ＧＰＲＳ、 Ｗ－ＣＤＭＡ三种技术迈向第三代移动通信的观点也已被许多业内人士及厂家所认可。 技术背景 ＷＡＰ 概述 ＷＡＰ是Ｗｉｒｅｌｅｓｓ Ａｐｐｌｉｃａｔｉｏｎ Ｐｒｏｔｏｃｏｌ的缩写,即无线应用协议。ＷＡＰ是一个通信协议和应用环境,它为ＣＤＭＡ、ＧＳＭ、ＰＨＳ、ＤＥＣＴ等移动系统而设计。利用它,数字无线电话及其无线设备用户将能快速、安全地存取和即时交互访问互联网和公司内部网,获得信…     

参数化绘图的一种新方法——鼠标拖动

该文用ＡｕｔｏＣＡＤ提供的Ａｕｔｏｌｉｓｐ语言进行二次开发，修改、扩充Ａｕｔｏ－ＣＡＤ的功能；用Ａｕｔｏｌｉｓｐ语言提供的（ＧＲＲＥＡＤ［〈ｔｒａｃｋ〉］）函数，让用户直接读ＡｕｔｏＣＡＤ的输入设备（如鼠标），任选项追踪光标移动存在且为真时，通过鼠标移动光标，达到从鼠标那里不断返回坐标值，实现鼠标拖动实体数据库与屏幕图形的一致变更，深化ＡｕｔｏＣＡＤ的作图环境，使鼠标拖动图形的参数化绘图成为可能     

AODE中Agent的一种协商机制

介绍一种面向智体的智能系统开发环境ＡＯＤＥ中Ａｇｅｎｔ 有正交互关系的一种协商机制。     

智能系统开发环境中agent的一种协商机制

介绍了一种面向智能体的智能系统开发环境ＡＯＤＥ中ａｇｅｎｔ间具有正交互关系的协商机制，给出了相应的协商算法和应用实例     

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     

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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Brief Introduction to “Journal of Jilin University( Science Edition) ”

<正>"Journal of Jilin University(Science Edition)"is a comprehensive academic journal in the fields of science sponsored by Jilin University and administrated by the Ministry of Education of the Peoples Republic of China.The journal started publication in 1955.The original name at starting publication was"Journal of Natural Science of Northeast People University",which was changed into"Acta Scientiarum Naturalium Universitatis Jilinensis"in 1958 owing to the name change of the university.The present journal name has