查询词典 variable-density system

Taking the structure dynamical variables of LFSS as system states, the variable structure model reference adaptive coupling active control system is established.

以LFSS的结构动力学变量为系统状态，建立了变结构模型参考自适应耦合主动控制系统，研究了高阶参考模型和滑态参数矩阵的选择方法。

The first one is an algorithm with terminal sliding mode equality constraint. The second is a dual-mode control scheme, which enlarge the terminal region. The sliding mode based MPC is implemented while system state is outside of terminal region, and sliding mode variable structure control designed off-line is used once system state arrives in the terminal region.

第一种方法为终端滑模等式约束非线性模型预测控制方法，首先离线设计切换函数使得滑动模态渐近稳定，然后在有限预测时域的基础上对切换函数附加一个终端等式约束；第二种方法为双模控制方案，在终端区外采用模型预测控制，使得系统状态在有限时域内到达终端区内；在终端区内部采用离线设计的滑模变结构控制，使得系统渐近稳定。

Through the design of ventilation and air conditioning system for the proof-test center of farm produce quality in the Chinese academy of agriculture sciences, expounded the details of the application of variable air flow exhaust system with fume hood .

通过对中国农业科学院农产品质量检验中心通风、空调系统方案的设计，详细论述了通风柜变风量排风系统的应用。

Y using the principle of system analysis and synthetical evaluation method, several external variable s of product structure system of eight cotton mills were determined.

应用系统分析原理和综合评价方法确定了八家棉纺织企业的产品结构系统外生变量，并对诸项变量进行了多元回归和逐步回归分析。

This model was simplified to a single degree-of-freedom system by means of complex variable function. The stationary solution of system was solved by harmonic balance method, and the amplitude-frequency response was presented.

采用复变函数将系统的动力学方程简化，利用谐波平衡法分析了系统的稳态解，得到了系统的幅频响应。

Applications of homogeneous coordinates in the variable system classifications of structures;2. According to the homogeneous coordinate transition,we deduce the formula for computing target pose under the absolute coordinate system an.

在此基础上，进一步建立空间动态目标全姿态激光跟踪测量的模型，基于空间坐标系的齐次坐标变换，推导出目标分别在绝对坐标系和相对坐标系下的姿态计算公式。

After analyzed the result of experimentation, I found out the mathematics model between the speed of liquid and the variable of resistance.according to the minus- resistance characteristic, I brought forward a new way of hydrometry, found corresponding mathematics model of hydrometry, designed a metrical system and brought forward some advice of about this system, found some significative conclusion.

分析实验数据，验证了液体流速与其电阻变化量之间的数学模型。依据负阻特性，提出了一种新的流量测量方法，建立了相应的流量测量数学模型，并设计了一套对应的测量系统，提出了该系统的设计要点，得到了一些有意义的结论。

Paper used for printing is fed to the imaging system, and using the imaging system the same document page is imaged with variable database indicia from the multiple discrete sources.

将印制使用的纸张装入印制系统，利用印制系统将来自多个独立来源的可变的数据库文字说明印制在同一文件页上。

Using neural network a-th invert system, the induction motor variable frequency speed-regulating system of V/F and vector control can be changed into feigned linear systems.

结合磁场定向的特点，导出了矢量控制运行方式的交流电机变频调速系统的数学模型，并对该系统进行了可逆性分析，证明该系统可逆。

The PID control with variable integration has greatly improved control performance and realized dynamic process control and management of the BST attitude control system. Thus it has greatly enhanced flexibility and reliability of the BST attitude control system.

变积分的 PID控制大大提升了CMG控制特性和系统的控制品质，使BST姿控系统实现了动态过程控制，增加了BST姿控的精度和灵活可靠性。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。