查询词典 time-base control

In the last chapter,we study the control problems of the distributedparameter system governed by a class of higher order pseudohyperbolicequation related to the symmetric regularized long wave equation.we havediscussed the controllability and optimal control problems.we have obtainedcompatibility condition of the constraint when the state is controllable,therepresentation of the optimal control for both the time optimal control problemand the optimal control problem of minimum energy type,and the equationsatisfied by the minimum time.we have shown that the optimal control belongsto the boundary of the admissible control set.

在第六章中，我们研究了与对称正则长波方程相关的一类高阶拟双曲型方程支配的分布参数系统的控制问题。讨论了系统的状态能控性问题和最优控制问题，给出了状态能控时的约束相容性条件，给出了最速控制问题、最小能量型最优控制问题的最优控制表达式和最速时间所满足的方程式，证明了最优控制属于控制集合的边界。

The system is perfectly realized through the four counts below:1 ^ Using configuration soft compile the person-computer interface for information management of grain depot content and the application program for data collection. This program will finish real time data collection and conversion and will dynamic come after each bam flash-locks run state and will supervise and record the run instance ^ startup or stop time 2^ Using Visual FoxPro workout report table for grain depot content informationmanagement system witch carry out database management function. 3^ Using Visual C++ workout communication program between Force Control configurable soft and aptitude instruments.(1) N Receive data from aptitude instruments.

本课题从下面四个方面实现系统要求： 1 利用组态软件Force Control 2.0编制了仓容信息管理系统的人机界面和数据采集应用程序，完成设备状态的实时采集和转换，动态跟踪各粮仓闸门的运行状态，监视并记录斗提机的运行情况、启动和停止的时间； 2 利用Visual FoxPro编制了仓容信息管理系统报表记录应用程序，实现数据库的管理功能； 3 利用Visual C++编制Force Control组态软件与智能仪表以为例的通讯程序，实现下列两项功能：(1)接收来自在线流量计的数据。

According to the real time control experiment of the"3-2-1"type 6DOF platform, it proves that the real time motion control based on virtual simulation is a feasible control method. The designer himself needn't do the modeling and solving of the kinematic positive/negative calculation of the complex space structure and it deeply reduces the needs of the control hardware.

通过所进行的"3-2-1"型六自由度平台实时运动控制实验可以证明，所提出的基于虚拟仿真的实时运动控制是一种可行的控制方法，它不仅不需要设计者自己直接进行复杂空间机构的运动学正、反解的建模与求解，而且极大地降低了对系统控制硬件的要求。

Around the topic, the weak points of the traditional platform is analyzed first, such as complex arithmetic, long calculating time, high needs of hardware and so on. A real time control method based on virtual simulation is suggested to separate the complex positive/negative calculation of space kinematic and real time motion control. And a"3-2-1"type 6DOF platform is designed with the reference of the MAST (Multi-Axis Shaking Table) of MTS. The kinematic and dynamic calculation of the platform is finished. According to the calculating result, the control system of the"3-2-1"type 6DOF platform including 6 linear servo electric cylinders is designed and constructed. And the professional software Pro/E is used to do the 3D model and 6DOF motion simulation of the platform. The motion curves of the pistons of the 6 cylinders are exported with the simulation. At last the control software is programmed with Microsoft Visual Basic 6.0 and realizes the functions with the commands of GE series motion controllers. When loading the motion curves exported with the simulation, every cylinder can follow the curve very well and the platform realizes the hoped 6DOF motion.

围绕选题，本论文首先分析了传统的运动平台控制方法所存在的算法复杂、解算耗时长、硬件需求高的缺点，提出了一种基于虚拟仿真的实时控制方法，该方法将复杂的空间运动学正、反解与实时运动控制相分离；之后，参考MTS公司的MAST多轴振动平台，设计了新型的"3-2-1"型六自由度平台，并进行了运动学及动力学计算，根据相关计算结果，设计与搭建了包括驱动6个直线伺服电动缸在内的"3-2-1"型六自由度平台控制系统；接着，使用Pro/E对"3-2-1"型六自由度平台进行了三维建模和六自由度运动学仿真，并由仿真直接获得了6个直线伺服电动缸的活塞杆的相应运动曲线；最后使用Microsoft Visual Basic 6.0编写了控制软件界面，通过调用GE系列运动控制卡的各种命令函数实现了控制系统的相关功能，而当加载仿真得到的各缸运动曲线后，每缸均能很好地跟踪输入曲线，使平台实现了期望的多自由度运动。

On the analysis foundation for the at the same time generator control law of permanent magnetisms have discussed the at the same time generator word of permanent magnetism of niter quantity to melt the function of every control son modular in control system and the specific ay of realizing, have put forward a set of at the same time generator word of permanent magnetism of entire quantity to melt the specific enforcement of control scheme, and according to this set of scheme having established the synchronous generator of permanent magnetism based on Simulink the word of entire quantity melts to control emulation model, for the control made scheme emulate to analyses.

在对永磁同步电机控制规律的分析基础之上，讨论了永磁同步电机全数字化控制系统中各个控制子模块的功能和具体的实现方式，提出了一套永磁同步电机全数字化控制的具体实施方案，并根据这套方案建立了基于 Simulink的永磁同步电机全数字化控制仿真模型，对所出的控制方案进行了仿真分析。

A time-shared control circuit points to multiplexer, applies the control signal and switches and repeats to output the input signal by the predetermined cycle order. A comparator compares the voltages of the output signal from the multiplexer and the reference voltage and outputs a dimorphic signal representing the comparative result. A time-share controlled circuit applies the control signals, controls the action of the multiplexer and the latch circuit to lead the respective voltage comparative result to be maintained in the latch circuits.

分时控制电路(5)对多路调制器(4)，使用控制信号(Sc1)，以所定周期顺序切换反复输出所输入的信号(St1)-(St4)，比较器(3)对从多路调制器(4)输出的信号的电压和基准电压进行电压比较，输出表示该比较结果的二态信号，分时控制电路(5)使用控制信号(Sc1)及(Sc2)，控制多路调制器(4)及闩锁电路(LT1)-(LT4)的动作，使得信号(St1)-(St4)的各电压比较结果分别保持在闩锁电路(LT1)-(LT4)中。

At the same time, the effects and mechanism of pyruvate supplement on body composition and lipometabolism during exercise should be discussed.38 male Wistar rats were selected and randomly divided into 4 groups: placebo control group, training control group, supplement control group and training and supplement group. All rats were in normal diets and drink at random.

动物实验：选取38只健康成年雄性Wistar大鼠，周龄8周，随机分为安慰剂对照组(placebo control，简称PC组)、运动对照组(training control，简称TC组)、补充丙酮酸对照组(supplement control，简称SC组)和补充丙酮酸运动组(training and supplement，简称ST组)。

Stability, robustness and oscillation of differenct uncertain time-delay systems are analyzed. Synthetical time-delay control schemes are proposed, including robust stabilizing control, variable structure control, robust dissipative control and so on. Industrial time-delay system model are established based on the theorematic results and industrial requirements. Pratical control algorithms and APC-software are developed and applied to practical process successfully.

在国家自然科学基金资助下，本项目对各类不确定时滞系统的稳定性分析、振动性质分析、鲁棒镇定控制器设计等问题进行了全面的理论分析，并结合流程工业生产过程的特点和企业需求，建立工业过程时滞系统模型，开发实用型的控制算法和先进控制软件，在一些典型的工业生产过程进行了成功的应用，取得了显著的经济效益和社会效益。

Experiments were carried out to investigate the impact on animal manure composting with two kinds of aeration control modes, time control and time-temperature control.

考察了2种不同通风控制方式(时间控制、时间-温度联合控制)对动物粪便堆肥过程的影响。

The simulation outcomes show that the control strategy is very effective to Shunt-wound APLC. 3. This chapter analyzes vibration of a traditional servo motor include relay with place and time lag, and brings forward fuzzy control scheme, changes the time of control action in the place delay zone, When reaching the balance point, system will be freedom movement. Theory analysis and simulation outcome all prove that control arithmetic is right.

针对一类带位置、时间滞后的继电器型伺服系统，分析其产生抖动的原因，并在此基础上提出了改善一种特定的带有继电器的伺服电机模糊控制策略，在继电器空间滞后区改变控制作用时间的大小，在靠近平衡点附近引入自由运动。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失