In the case of plane motion, the phase plane method can be used to analyse the motion qualitatively.
对于平面运动的特殊情形，可在相平面内进行定性分析。
This paper presents the phase plane method and the stable region method to analyze the stability of the fuzzy control systems.
本文给出了模糊控制系统稳定性分析的相平面法和稳定区间法，并对应用这两种方法设计模糊控制系统进行了讨论。
The stability of the helical equilibrium is analyzed with phase plane method, and an analytical criterion of stability is revealed.
用相平面法分析螺旋线平衡的稳定性，导出解析形式的稳定性条件。
The first one is about how to build the connection between describing function method and phase plane method through limit cycle analysis.
第一个是关于如何通过极限环分析建立描述函数法与相平面法之间联系；
In general, the design of phase-lock loops has been done by a combination of linear analysis, phase plane plots, rule of thumb, and simulation.
锁相环一般采用线性分析，相平面图，近似计算法以及计算机模拟来设计。
Firstly we introduced the phase plane method in nonlinear dynamics to analyze qualitatively the threshold dynamical behavior of neurons in this thesis.
本文中，我们首先用非线性动力学中的相平面法来定性地分析神经元的阈值特性。
The effects of velocity ratio of free streams on the particle sedimentation in liquid-solid two phase plane mixing layer are studied by flow visualization method.
本文采用流动显示的方法对平板混合层中上下层流体速度比对固体颗粒在混合层中沉降的影响进行了研究。
On the basis of the trajectory on the phase plane and Lyapunov' s direct method, switching line is introduced for controlling static compensator under large disturbance.
根据相迹方程和李亚普诺夫直接法提出了在大扰动下控制静止补偿器的开关线。
The gas and particle phase in the gas solid two phase plane mixing layers flow is numerically simulated using the discrete vortex method and trajectory method respectively.
对气固两相平板混合层流动，采用离散涡方法模拟气相场，轨道法跟踪颗粒的运动。
The L F signals are transformed by entropy based on wavelet packet algorithms for best basis selection, and the results are displayed in time- frequency space namely phase plane.
该方法采用基于熵的小波包最佳基选取准则，对局部损伤信号进行自适应小波包分解，将分解结果显示于时—频空间即相平面上。
The local behavior of the surface oil flow patterns is analyzed with phase plane theory of ordinary differential equations. Also the surface oil flow patterns are locally classified.
在此基础上利用微分方程相平面理论分析表面油流谱的局部特性和对流谱局部地进行分类。
One is the saddle-type structure where the projection point is located either in the up part or the down part of the phase plane, which is divided by both stable and unstable manifolds.
一类是投影点处的轨迹走向服从鞍点规律，且由于投影点位于稳定流形与不稳定流形分割的相平面的上部或下部，故轨迹将沿稳定流形方向到达动态鞍点再沿不稳定流形方向离开该点；
First, we take the analysis of phase-plane on the invariant plane for the perturbed and unperturbed systems.
首先，我们在常值平面上对扰动和未扰动系统进行相平面分析；
Time history curves of displacement, hysteretic curves of restoring force, phase-plane trajectory curves, time history curves of energy have been obtained.
得到了框架结构稳定与不稳定时的位移时程曲线、滞回曲线、相平面曲线及能量时程曲线。
Based on MATLAB, the phase-plane method can be used to research on nonlinear capture function and nonlinear tracing function of PLL.
基于MATLAB，用相平面法研究了，PLL的非线性捕获和非线性跟踪性能。
Hepatic blood flow earlier perfusion phase, time-activity curve(TAC), hepatic blood pool phase(plane and tomography), CT and color ultrasound were compared as control group.
再与肝血流灌注相的早期充盈、时间活性曲线（TAC）、肝血池（平面及断层）显像、CT和彩超检查作对照。
Hepatic blood flow earlier perfusion phase, time-activity curve(TAC), hepatic blood pool phase(plane and tomography), CT and color ultrasound were compared as control group.
再与肝血流灌注相的早期充盈、时间活性曲线（TAC）、肝血池（平面及断层）显像、CT和彩超检查作对照。
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