整个系统

The control system's design is introduced in detail because of its important role in the rotation system.

控制系统是整个系统的核心，本文详述了旋转运动控制系统的设计过程。

It consists of temperature senor, data acquisition unit, data processing software and computer control system. We also analyzed the data of the experiment of ion implantation.

整个系统由测量靶和温度传感器、数据采集、计算机数据处理软件以及控制系统组成，实现计算机测量系统的计算机控制，并达到比较理想的测量结果。

Hydraulic screw down system of cold rolling sheet plant of Benxi Iron and Steel Company was studied,physical and mathematical models of every part of hydraulic screw down were established and transfer function of the whole system under position control was deduced.

通过对本钢冷轧厂四辊冷带轧机液压压下系统的研究，对液压压下系统的各个环节建立了物理和数学模型，推导出了整个系统在位置控制方式下的传递函数。

Secondly, method of Taylor series is used to approximate the slow manifold and the O approximation of the slow manifold is given; slow dynamics such as saddle node bifurcation which has been proven to be the same as that for the full system is analyzed; at the same time, fast dynamics including bifurcation conditions and domain of attractor of the stable equilibrium are also analyzed; the attracting region which consists of the stable manifold of the unstable equilibrium and stable equilibrium is given; we found that when the inner flux decay increases, the domain of attractor is enlarged.

首先，给出了电力系统SMIB模型的时间尺度分解，得到标准的奇异摄动模型；其次，利用幂级数方法，给出了慢流形的O近似M〓，分析了在慢流形M〓上的慢动态，得到了慢子系统的鞍结分支值，并证明此分支值与原系统的鞍结分支值相同；分析了快子系统的平衡点和全局分支的存在条件，给出由不稳定平衡点的稳定流形与稳定平衡点形成的吸引域；并研究内部电压对稳定域的影响，发现稳定域随内部电压增加而扩大；最后给出整个系统的稳定平衡点的近似吸引域。

This system have virtues thereinafter, powerful function, friendly interface, easy debug, convenient configuration and steady run etc.Up to now, this system has produced great economic and social benefits. The investment is returned in less than a year.

本系统具有功能强大，界面友好，调试容易，组态方便，运行稳定等优点，系统已成功运行至今，取得了较大的经济和社会效益，整个系统运行一年就全部收回投资。

Firstly ,the whole system's construct is introduced and then it's approximate linear TIV model is educed and analyzed elementarily.

首先，介绍了整个系统的物理结构，推导出了系统近似的线性定常模型并对系统的运动进行了初步的分析。

Its well-balanced and high efficiency run is one of the necessary conditions of the high quality and high field for the middle plate product line .The nip-deliver roller system is the hard core in the armor plate side exscind system, so its reliability and veracity is very impotent.

它的正常高效运行是中板生产线优质高产的必要条件之一，在中板生产中扮演着很重要的角色，而夹送辊控制系统是整个系统的核心部分，因此对夹送辊控制系统的工作可靠性、准确性提出了很高的要求。

In the chapter 7, a new type of highly reliable and multifunctional hydroturbine microcomputer-based governing system is studied and developed; the structure design principle of microcomputer-based system is described and discussed; based on the adaptive control strategy with optimized PID parameter, a combined control strategy of frequency and phase with variable weighting factor is presented; in the design of hardware and software, the fault diagnosis, fault tolerance and fault avoidance techniques are adopted, and the suitability and reliability are greatly improved.

第七章研究开发了一种新型的高可靠多功能水轮机微机调节系统，论述了微机系统的结构设计原理，在适应式PID参数优化调节控制策略的基础上，提出了机组空载运行时的变权系数频率和相位综合控制策略；在微机调节控制器的硬软件设计中，全面应用了故障诊断技术、容错处理和避错处理技术，大大提高了整个系统的适应能力和可靠性。

In the whole system, each intelligential unit work independently and intercommunicate. The users can freely configure to realize kinds of functions according to their demands. So this system integrates advantages of DCS and fieldbus. This paper takes oneintelligential unit-mobile roll tension control unit as concrete object toanalyze.

整个系统设计时既可以采用RS-485技术，又可以采用CAN技术，它具有全数字化信息双向通信、多变量处理能力、自诊断等功能，系统中的各智能化单元工作独立，又可相互通信，在系统总线上，用户可以根据需要自由组态，灵活实现各种现场功能。

On the control strategy of liquid temperature, devoleping precompensation PIDstrategy was adopted based on the previous works. Considering the whole system, weadapt Linux OS that is steady than the MCU. It can complete the experiment by manypeople and many PC through the net. The system used Linux operation system based onthe ARM9 as the real-time kernel and the nether application software developmentenvironment. So it\'s easy to extend and maintain the system.

在实验温度控制上，详细分析了多种控制方案的优缺点，在改进前人的控制算法基础上选取了改进的分阶段预补偿PID控制技术，实现了温度的精确控制；从整个系统的需求出发，采用了比单片机更稳定的Linux操作系统，通过网络使得多人多机能够参与到实验中，更好的完成了杂交实验，实现了全系统的优化；在软件开发时选用了基于ARM9的Linux操作系统作为实时内核和下位机软件开发环境，极大地方便了系统的扩展和维护。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。