Compared with the traditional techniques of constant temperature and pH value without controlling in whole fermentation process, the control strategy could increase sisomicin product about 10%. 与在整个发酵周期内控制一种温度和不控制pH值的传统工艺相比,该策略可提高西索米星产量10%。
Rotor time constant Tr and the rotor flux reference value ψ r have an important effect on the timing performance of asynchronous motor in vector control. 在矢量控制算法中,转子励磁时间常数Tr和给定转子磁链ψr对异步电机的调速性能有着至关重要的影响。
In the paper, considering three satellite constellation, optimal time control of orbit transfer with constant value, continue working and Newton grade thrust is studied, by means of Minimum Principle in optimal control theory. 本文针对形成三星星座,利用最优控制中的极小值原理,解算了用恒值、连续工作、牛顿级小推力变轨的时间最短控制问题。
The result accuracy of constant value quality control assay was satisfactory. 定值质控物测定结果准确度满意。
Three types of control can be realized in the controller. They are constant value control, servo-motor and stepper motor motion trace control and welding process working procedure control. 该控制器可以实现的控制类型有:恒值控制,伺服电机和步进电机的运动轨迹控制,焊接过程的程序控制等。
Control of Constant-limiting Value and Its Control Strategy 定限值控制问题与控制策略
Under the constant condition of environmental load, water consumption of ten thousand Yuan output value is got from the control equation. It is unable to meet the recycling economy's demand. 在环境负荷不变条件下,运用控制方程求得的万元产值用水量无法满足循环经济的需求。
This paper describes the optimal control algorithm of multivariable time varying systems with constant time delays using minimal value theory and parameter optimization theory of optimal control theory, and presents the digital analog hybrid simulation method and practice methods of the systems based on this algorithm. 应用最优控制理论的极小值原理和参数优化理论,叙述了具有常数时滞的多变量时变系统的最优控制算法,基于该算法,提出了这类系统的数模混合仿真方法和实践方法。
Thereof, neuron network controller has been adopted after the preliminary study in order for finding out a suitable way to make constant value control approach to constant-limiting value control. 初步讨论了采用神经网络控制器,来实现定值控制向定限值控制逼近的方法。
One reason is the cheat of listed companies and high p/ e ratio price when issuing, the other reason is the constant reducing of investment value of listed companies because the controllers of listed companies abusing the control power. 究其原因,一是上市公司的包装上市与高市盈率发行,二是上市公司控制人滥用控制权导致的上市公司投资价值的不断降低。
Then, a controller is designed by use of feedback linearization to cause the output of chaos system to track an expected constant value or period orbit with a rational developing strategy formulated, thus implementing the feedback tracking control of chaos in the system. 利用反馈线性化方法设计控制器,进而制定合理的开发策略,使受控混沌系统的输出跟踪期望的恒值或某一期望的周期轨道,实现对混沌系统的反馈跟踪控制;
The design of the constant value unit accords to the negative feedback control theory, including power and temperature. Because the method of the temperature-wavelength modulation slowly, this paper uses the PI isolated circuit to speed up the rate of the temperature modulation effectively. 恒值单元根据负反馈控制原理,分别设计出功率和温度负反馈稳定电路,并针对温度-波长调制速度慢的缺点,引入了比例积分分离电路,有效加快了温度调制速率。