控制

At last, with the position/velocity servo control modes, the precise reciprocating motion of single coordinate flat roofs and continuous whirligig of platens are achieved.

首先分析永磁同步电机及其驱动器的位置／速度伺服控制模式，然后提出在同一个运动控制系统中应用多伺服控制模式的概念，最后，基于位置／速度伺服控制模式，实现了坐标平台的精确往返运动控制和滚筒的连续匀速旋转运动控制，同时介绍了系统的构成，并对系统参数作了详细分析。

In the paper, we discussed application requirement and build mode of accurate equip assurance command control system, confirmed development model, means and rule of accurate equip assurance command control system, designed system architecture and function, built an integrate and banausic application model of accurate equip assurance command control system.

分析了基于信息共享的精确装备保障指挥控制与作战指挥控制的从属关系，研究了装备保障指挥控制系统的应用需求和组建模式，确定了装备保障指挥控制系统的开发模型、开发方法与原则，设计了装备保障指挥控制系统的总体体系结构和功能，建立了一套较为完整实用的装备保障指挥控制系统应用模型。

Based on average current mode, PI control adopts the same double loop structure as analog control; Repetitive control adds a feedback innerly to change the model of control object so that it can meet the requirements of stability. This equals to a three-loop structure.

PI控制的设计基于电流平均模式，与模拟控制的双环结构相似；重复控制的设计，内部增加一个负反馈，以改变控制对象的模型，使之满足重复控制的稳定性要求，相当于一个三环控制结构。

This paper uses cubic spline interpolation function, setting up a mapping between control inputs and control outputs directly based on the data of control input-output, and receives the control algorithm of cubic spline interpolative control for single variable and two variables to separately control the first order system and second order system.

本文利用三次样条插值函数，直接由控制输入输出数据对建立了控制输入与控制输出之间的映射关系，得到了一元三次样条插值控制算法和二元双三次样条插值控制算法，二者可以分别对单输入单输出系统和双输入单输出系统进行控制。

The results showed that resistant gene Ht in F1 heterozygote was the most effective on controlling spots number and size; all monogene in heterozygote could produce spore by moisture culture and resistant gene Ht1 was the most effective; resistant gene Ht1 in medium level, Ht3 in high level, and Ht in low level of vertical resistance of heterozygote, were the most effective on controlling spots spread; while Ht2 in high level of vertical resistance of heterozygote was the most ineffective on controlling spots spread; and all resistant monogene in heterozygote showed superior to their parents on controlling incubation period and gene Ht was more significant than other genes.

结果表明，抗性单基因Ht处于F1代杂合状态时，控制病斑数和病斑面积的效应最强；单基因处于杂合状态时，湿培48h病斑全部能产生分生孢子，且处于同一水平抗性杂合状态时，Ht1控制产孢量的效应最强；Ht1处于中水平、Ht3处于高水平和Ht、处于低水平垂直抗性杂合状态下，控制病斑扩展效应最强；而Ht2处于高水平垂直抗性杂合状态下，控制病斑扩展效应最弱；抗性单基因处于杂合状态下，控制潜伏期多表现超亲现象，Ht控制病害潜伏期比其它单基因显著。

In contrast, a nonfinite construction involving an I head with any negative specification ,, will necessarily license PRO.

根据PRO的不同语义指向，汉语控制结构可分为彻底控制、分裂控制、变量控制、隐含控制和任意控制。

This paper builtup esterification model, pre-polycondensation model, polycondensationmodel, and successfully built up monitoringon-line system of some key quality tar gets as well as operation systemmodel according to the polycondensation technique of NOY company.

本文在软测量技术的基础上，建立了酯化反应控制模型、预缩聚反应控制模型、终缩聚反应控制模型，并成功开发出在线控制系统，对生产过程中的关键质量指标如粘度、二甘醇、端羧基进行在线控制，控制精度达到小于2.5％。

The pyrometric cone and colored crayons and paints which indicate whether or not a certain temperature range has been exceeded serve a real need in certain high-temperature measurement situations, particularly where motion, as in tunnels and kilns, is involved.

B： Control Panel 背景知识：控制盘是控制系统与操作员之间的界面。常规的控制盘是一个钢的框架，上面装有各种显示仪表，控制仪表，报警装置和控制按钮。现在越来越多的控制系统的人机界面已经由计算机界面等取代。

The invention relates to a dynamic matrix control system of high-purity distillation, which comprises distillation tower, intelligent checker, DCS system, superior host, and on-site bus, while they are connected. The control system uses tower product group as the object variable, and the reflux ratio and reboil ratio as control variable; the superior receives history temperature and pressure data from the DCS real-time database, via the predict control and dynamic matrix controller, to obtain the output values of present controller as reflux ratio and reboil ratio, then feedback said two values to DCS system, to function the distillation object. The invention can confirm the high-purity stable operation, with better dynamical control.

本发明公开了一种高纯精馏的动态矩阵控制系统和方法；系统包括：精馏塔、智能检测仪表、DCS系统、上位机和现场总线；所述精馏塔、智能检测仪表、DCS系统和上位机通过现场总线依次相连，实现信息流的上传和下达；本发明所涉及的控制系统采用塔双端产品组分为被控变量，回流比和再沸比为对应的控制变量；上位机从DCS实时数据库中获得历史的温度、压力等数据，通过推断控制环节和动态矩阵控制器环节，得到当前控制器的输出值-回流比和再沸比，再把控制器输出值返回给DCS系统，实现了对高纯精馏过程的双端产品高纯控制，对双端组分的高纯度平稳操作，具有很好的动态品质和控制效果。

In view of the not high whole level of cost control of our construction enterprise, lacks the feasibility strong cost control method. The construction enterprise cost has one -sidedness to control the idea, workers cost consciousness of enterprise is not strong, construct enterprise cost is remain current situation during the course of constructing, etc. The thesis submits the focal point of every stages of cost controlling and the method and theory of cost control.

针对我国建筑业企业成本控制水平整体不高，缺乏可操作性强的成本控制方法，建筑业企业成本控制理念存在片面性，建筑业企业职工成本意识不强，施工企业成本控制只停留在施工阶段等现状，本论文拟从投标到竣工验收的全过程为研究对象，提出了各阶段成本控制工作的重点和成本控制方法。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。