过程控制

In order to deduce the engine control law during the helicopter autorotation, simulation was made to demonstrate the transient process of the engine when entering the helicopter autorotation condition using normal control law. Based on the existing control law, an improved law was brought forward by magnifying the differential gain of collective pitch "anticipator" and broadening the deceleration limitation.

为确定直升机自转下滑训练过程发动机的控制规律，分析了采用正常控制规律进入自转状态时涡轴发动机的变化过程，提出了在现有控制规律基础上增强动力涡轮转速控制模块中总矩"提前器"作用和适当放宽速率限制值的控制对策。

In the business card printing and membership card making to be represented by tension controller to control business card printing and membership card making constant tension, is the key to so overprinter accurate, tension control system is any drum business card printing and membership card making machine one of the main body, to a large extent determine the prints overprinter accuracy, tension and control institutions are primarily provided at bleeder part business card printing and membership card making-position-and-drop your material up institutions, material roll output you need to turn the material roll resistance, inertia, coiling has it own tension values, together with the business card printing and membership card making speed uponsize traction, Business card printing and membership card during various color group overprinter on the resistance of the material makes it possible to put volume, the business card printing and membership card production, letoff institution of tension control is important, the size of the tensility control should see materials of munltivariable, of the material used-narrow to decide.

在制卡和会员卡制作过程中由张力控制器来控制制卡和会员卡制作张力的恒定，是套印准确的关键所以，张力控制系统是任何卷筒制卡和会员卡制作机的一个重要机构，它在很大程度上决定印品的套印准度，张力控制机构主要设于放料部分，制卡和会员卡制作工位和放收料牵引及收卷机构、料卷输出需要阻力，料卷转动有惯性，卷料自身也存在一定的张力值，加上制卡和会员卡制作速度的拉力牵引，制卡和会员卡制作过程中各色组套印对被印材料的阻力使得放卷、制卡和会员卡制作、收卷机构的张力控制显得尤为重要，张力控制的大小应视材料的厚薄、质料宽窄来决定。

This paper introduces the development process of wastewater disposal,it's auto control system,the level of nowadays and several new techniques of China and foreign countries. The immanent structure,control rules,main features and design methods of auto control systems in wastewater disposal process are studied in this paper. Aiming at four typical parameters,such as temperature,dissolved oxygen,PH and the planes of water,the Distributed Control System is designed,composed by PC called epigyny computer and SCM 8098 called hypogyny computer,and some sensors,shift deliver utensils and related meet orifices of parameters gathering and figures communication. The idea and work processes of some program modules are also introduced here. The programs in epigyny computer include the program of mutual interface between operator and computer,figure disposal program and chart output program,which are exploited with Visual Basic 6.0. And the programs in hypogyny computer are composed by figure gathering program,the progr am of supervision and control of system,communication program and meet orifice program between assemble language and VB,which are designed with assemble language.

本文介绍了国内外污水处理及其自动控制系统的发展过程、当今水平和提高自动化程度的若干新技术；研究了污水处理自动控制系统的内在结构、控制规律、主要特点和设计方法；选取污水处理中的典型参数温度、溶解氧、PH值和液位等为控制对象，设计了以个人计算机为上位机、以8098单片机为下位机，并辅之以传感器、变送器及相关接口单元所构成的二级集散控制系统；介绍了几个主要程序模块的设计思路、工作过程，这些程序模块是：用高级语言Visual Basic6.0开发的上位机人机交互界面程序、数据处理和图表输出程序，用执行效率高的汇编语言开发的下位机数据采集与系统监控程序、上位机与下位机之间的数据通信程序，汇编语言与VB之间的转接程序，等等。

According to the requirements of the glass furnace, this system is proposed to use computer and PLC build up into one new control technique. Using this system, the technical requirements of varying of Petroleum, Pulverized Air and Exhaust Fume in the operation are guaranteed effectively. The system has overcome the disadvantage of the traditional control system.

本文针对玻璃熔窑运行过程中的要求，采用计算机控制技术与PLC组合成一新型的控制系统，快速准确地实现生产过程的控制，有效的保证了运行过程中重油、雾化气、助燃风及废气闸板的换向要求，以实现火焰换向的自动化控制。

In order to meet the discharge norm of the contamination concentration limit, zone generalized predictive control is adopted which transforms the conventional quadratic objective of the MPC into a linear programming with soft constraints; besides, considering the wastewater treatment plants energy-saving targets, a multi-objective predictive control is formulated and finally hierarchical multi-objective optimization algorithm is applied for on-line optimization solution.

根据污水处理过程的实际要求，为了满足氮浓度的排放标准区间要求，研究了污水处理过程的区间广义预测控制策略，把预测控制的常规二次目标转化为带软约束问题的线性优化问题；同时考虑到污水处理的能耗，在出水水质目标之上建立了能耗最小目标，得到了污水处理的多目标预测控制，最后采用分层多目标优化算法进行在线优化求解，得到污水处理过程的多目标预测控制。

Secondly, the quality loss model of the quality control, quality problem tracing back and the quality improvement is constructed, which minimizes the quality loss in quality control system. The quality loss model combined with Duncan model and Taguchi quality loss model is studied, the control parameters such as the upper control limit and the lower control limit are computed for the quality control in manufacturing. The Taguchi quality loss model is improved with the fuzzy theory, and the validity of the quality loss model is validated by the instance of the principal axis quality control.

2构建了产品质量控制、质量问题追踪和质量改进的质量损失模型，使质量控制系统运行过程中质量损失最小；研究了由Duncan模型和田口质量损失模型相结合的质量损失分析模型，为过程质量控制提供了上下控制限等参数，利用模糊理论对田口质量损失模型进行了改进，并通过主轴质量控制实例验证了质量控制损失模型的有效性。

Expound clearly the development of the DCS, and the basic structure and the work principle of the DCS and the application at the industry spot of last years, analyzed emphasesly characteristic and constitutes of ECS-100 DCS Zhejiang soupcon Co., LTD. The thesis mostly introduced application of the DCS to urea manufacturing process , and the DCS control, including the control scheme of the DCS design, the controller configuration of the system, and the whole course of the engineering actual and so on.

本文对集散控制系统的发展过程进行了综述，介绍了集散控制系统的基本结构和工作原理，介绍了集散控制系统的发展趋势及近几年来集散控制系统在工业现场的具体运用情况，并介绍了DCS在锅炉控制中的详细应用，并对齐整个过程进行了设计，包括控制方案的设计，系统的组态，直至最后的工程实施等等。

This paper hereby introduces the cooling process of the common 160,000 m^3-in-capacity atmospheric LNG storage tank in China, the preconditions and matters to which attention is paid upon the cooling of tank. It also discusses some commissioning techniques needed in the cooling process, including pressure control, cooling medium supply and its flow control, process monitoring and cooling rate control, etc. The paper points out that the displacement of pipelines is easily to be overlarge and flange leakage takes place frequently in the cooling process and it gives corresponding solutions.

为此，详细介绍了国内LNG接收站常用16×10^4 立方分尺常压LNG储罐的冷却过程，分析了LNG储罐冷却前应具备的条件及注意事项，讨论了LNG储罐冷却过程中的压力控制、冷却介质供应及流量控制、冷却过程的监控及冷却速率控制等调试技术，指出了冷却过程容易出现管线位移过大、法兰泄漏等问题，并给出了相应解决方法。

A simplified CGPC controller, presental in this paper, is used for the temperature controlof electric resistance furnace in order to meet the requirement of auto-verifying thermocople.

针对热电偶自动检定系统中电阻炉炉温控制的需要，简化CGPC控制器被选用。根据实际阶跃响应数据可建立预测控制过程模型。简化CGPC用于电阻炉炉温控制过程的效果明显优于常规的控制，而且并不要求有精确的过程模型

The has been studied. Radix isatidis, a Chinese medicinal preparation used commonly , effectively in clinical and unclarified in active substance, was chosen as a model to be studied. Based on the concept of production quality control, considering the features of TCM itself, the process of TCM preparation, especially the heating process has been studied. The physico-chemical properties assay, chemical analysis and bioassay, also the bio-thermal activity had been applied in this study.

根据药物生产质量控制理念，结合中药的特点，本文选取临床常用、疗效确切但药效物质基础不清的板蓝根为研究载体，以中药制剂过程单元操作特别是加热过程质量控制为主要着力点和切入点，在常规理化检测和化学组分分析的基础上，引入生物活性检测，探索建立基于理化—生物关联检测的中药生产过程质量控制模式和方法，以期为中药生产中原料药、半成品和成品实现全程质量控制提供技术支持。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。