三相分离器的油水界面和压力的计算机解耦控制

本文应用解耦理论对原油脱水用的三相分离器进行的计算机控制的设计、仿真和实时控制进行了探讨。经现场调试运行,取得了较好的控制质量。     

通用绘图软件NuSlides中的面向对象的用户界面设计

本文描述在Ｕｎｉｘ环境下开发的通用绘图软件ＮｕＳｌｉｄｅ中的图形用户界面的设计思想和实际方法。其特点是基子面向对象的技术，提供多窗口、菜单驱动、选择面板、键盘输入等多种才法。该图形用户界面具有灵活性、可扩充性和易使用性。     

青霉素发酵过程的智能优化控制

本文在分析青霉素发酵补糖工艺的要求和存在的问题基础上,设计出智能控制算法,采用集散系统实现在线优化控制,经实际应用,效果明显。     

A STEP-BASED CAD/CAPP INTEGRATION

ＡＳＴＥＰ－ＢＡＳＥＤＣＡＤＩＣＡＰＰＩＮＴＥＧＲＡＴＩＯＮＺｈｅｎｇＬｉａｎｙｕ；ＤｕＰｅｉＡＳＴＥＰ－ＢＡＳＥＤＣＡＤＩＣＡＰＰＩＮＴＥＧＲＡＴＩＯＮ￥ＺｈｅｎｇＬｉａｎｙｕ；ＤｕＰｅｉＡｂｓｔｒａｃｔＴｈｅｉｎｆｏｒｍａｔｉｏｎｉｎｔｅｇｒａｔ...     

空间机器人遥控、自主与协同操作的软件基础

空间机器人控制语言是实现空间机器人三种控制方式:遥控操作,自主操作和协同操作的软件基础,本文描述了该语言的基本结构,对于自主方式,给出了编程示例;对于遥控方式,运用程序辅助的方法,解决了操作员单独进行主/从操作时难以解决的问题.     

Type inference in stack based languages

We consider a language of operations which pass parameters by means of a stack. An algebra over the set of type signatures is introduced, which allows the type signature of a program to be obtained from the type signatures of its constituent operations.Although the theories apply in principle to any stack based language, they have been evolved with particular regard to the proposed ANSI Standard Forth language, which is currently implemented in a type free manner. We hope this work will stimulate an interest in Forth amongst those applying algebraic techniques in software engineering, and we hope to lay the theoretical foundations for implementing practical type checkers to support Forth.     

Design and Implementation of a Flexible Manufacturing Control System Using Neural Network

Design and implementation of a sequential controller based on the concept of artificial neural networks for a flexible manufacturing system are presented. The recurrent neural network (RNN) type is used for such a purpose. Contrary to the programmable controller, an RNN-based sequential controller is based on a definite mathematical model rather than depending on experience and trial and error techniques. The proposed controller is also more flexible because it is not limited by the restrictions of the finite state automata theory. Adequate guidelines of how to construct an RNN-based sequential controller are presented. These guidelines are applied to different case studies. The proposed controller is tested by simulations and real-time experiments. These tests prove the successfulness of the proposed controller performances. Theoretical as well as experimental results are presented and discussed indicating that the proposed design procedure using Elman's RNN can be effective in designing a sequential controller for event-based type manufacturing systems. In addition, the simulation results assure the effectiveness of the proposed controller to outperform the effect of noisy inputs.     

文72块沙三中油藏天然气驱可行性试验研究

根据文南油田72块沙三中油藏的性质和流体特征，通过室内细管驱替试验和长岩心驱替试验研究，表明注入天然气组成达到一定比例和注入气和温度大于某一临界值，就可以对该油藏进行注烃类气体混相驱，说明注气开发是可行的，并能够提高油藏的采收率。     

国内外天然气利用的现状与展望

本文在综合分析了国外天然气利用的不同模式后指出 ,今后我国的天然气将以发电利用为主 ,作为合成氨原料利用的天然气消费量也将有较大幅度增长 ,但原料利用在消费结构中的比例则明显下降。我国天然气的消费结构将从原料为主的模式逐步过渡到以发电为主的模式。预计到 2 0 10年 ,我国天然气的消费量将达到 10 0 0× 10 8m3左右 ,在消费结构中 ,发电占 4 0 %～ 4 6 % ;其它工业用占 2 5 %～ 31% ;化工原料占 15 % ;民用占 14 %。文章最后对发展我国的天然气消费市场提出了看法与建议。     

天然气在应用领域的市场竞争力简析

文章以上海当前能源价格为例,讨论天然气与其他可替能源在应用领域的能耗费用,分析天然气的市场竞争力。