查询词典 variable-density system

Subminiature underwater robots, Piston--style ups-downs system, Variable structure PID, Grey model PID control, Fuzzy inverse model

中文关键词超小型水下机器人，活塞式沉浮系统，变结构PID，灰色PID控制，模糊逆模型

The initial value susceptivity and the longest forecastble time, the least number of independent variable , the chaos degree and the average forecastable time of the system have been calculated.

并从混沌学的角度讨论了煤自然氧化时间序列的混沌特性、系统独立变量的最小数目以及系统的混沌度等混沌动力学参数。

Based on dual variable principle, a symplectic algorithm for solving optimal control problem of nonlinear dynamic system was proposed.

基于对偶变量变分原理提出了求解非线性动力学系统最优控制问题的一种保辛数值方法。

Using Charent's pressure variable, two-phase, incompressible, immiscible flow in porous media is governed by a system of coupling nonlinear partial differential equations.

引入Charent压力变量，对于多孔介质中两相不可压缩流体的非混溶驱动问题，其模型表现为耦合的非线性偏微分方程组，一个是压力方程，另一个为饱和度方程。

By adopting its complex variable solutions, the stress solutions of dislocation in bi-material on the whole plane were worked out, integration of which along the crack line would lead to the basic stress solutions in Cartesian and polar coordinates system of an bi-material incline crack.

应用两相材料中点位错在全平面的复势函数解，导出了两相材料中点位错在全平面的应力场解，进而将该解沿裂纹线积分得到倾斜裂纹的直角坐标及极坐标应力场基本解，同时利用该基本解退化出单根界面裂纹的直角坐标及极坐标应力场基本解。

And the solutions of arbitrary time-space elastic force equations of time-space variable system multi-linear vectors all are corresponding constant modulus multi-linear vectors, their time-space moving regular are: only change their directions but do not change their moduluses.

而任何时空可变系多线矢的时空弹性力方程的"解"，都是相应的"常模长多线矢"，它在时空的运动规律是：仅改变方向，不改变"模长"。

A guide system for variable rate machine is designed.

本文的主要研究结论是：1。

The design and development of the control system for the Continuously Variable.

本文论述了基于MC68HC912DG128A 单片机的汽车无级变速控制系统系统的设计和研制。

The simulation results state that, the sliding mode variable structure control system can improve the stability further.

仿真研究表明，所设计的滑模变结构控制系统，能进一步改善系统的动态品质。

Stability of a class of nonlinear system via a smooth variable structure control.

通过滑模变结构控制的一类非线性系统的稳定性。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。