查询词典 transient stability

After introducing failure model of PCPCF, the dissertation has deduced the circular arc method formula of PCPCF's total stability analysis. The analysis shows that PCPCF can improve the stability of natural foundation. At the same time, the dissertation has also perfected stability calculation method of composite foundation which has caverns.

介绍了复合地基的破坏模式之后，推导了素混凝土桩复合地基整体稳定性分析的圆弧法公式，分析表明素混凝土桩复合地基有利于提高天然地基的抗滑稳定性；另一方面完善了洞室复合地基稳定性的计算方法。

The evaluating items included:(1) Balancing apparatus test index such as the total stability index, anterior-posterior direction stability index, left and right direction stability index;(2)Berg measurement for the motor function of lower limbs and PASS measurement for the equilibrium function;(3)Fugl-Meyer measurement for the motor function of lower limbs;(4) Barthel index scales for ability of daily life.

评定内容：（1）平衡仪测试指标包括总体稳定指数、前后方向稳定指数、左右方向稳定指数；（2）用Berg平衡量表和PASS姿势评定量表评估平衡功能；（3）用Fugl-Meyer下肢运动评分量表评估下肢运动功能；（4）用改良Barthel指数评分量表评估日常生活活动能力。

Stability shows asymptotic behaviors of a system. Chapter 3 discusses Sobolev-Galpern equation with pseudoparabolic characteristic, studies the stability under disturbance of the initial value, i.e., the Lyapunov stability problem, and shows the global asymptotic behavior of the trivial solution.

在第三章，本文考(来源：Ab6BC论文网www.abclunwen.com)察了具有伪抛物特性的Sobolev-Galpern方程关于初始值扰动下的稳定性问题，即Lyapunov稳定性问题，论证了其平凡解的全局渐近稳定性。

In chapter 2. to two classes of specific systems in engineering, we make researches into stability with respect to their own invariant sets through the theoretic techniques of HDS. And then we bring forward sufficient conditions of uniform asymptotic stability and exponential stability with respect to their own invariant sets in the sense of Lyapunov.

第二章针对实际工程之中的两类具体系统用混合动态系统的理论方法对其关于不变集的稳定性进行了研究，提出了它们关于各自的不变集在Lyapunov意义下一致渐近稳定、指数稳定的充分条件。

The main factors of affecting the stability of submarine pipeline are analyzed, and the result shows: effect of Wake has disadvantage for pipeline stability, weight of per length unit pipeline is a important factor affect the stability of pipeline.

根据所建模型对影响裸置管线横向稳定性的各项因素分析表明，忽略尾流的影响会严重高估裸置管线的在位稳定性，影响管线稳定性最主要的因素是单位长度管线重量。

First, the Lyapunov functional and variation of constants method are adopted to study the effect that Sigmoid function and the relation of resistance, capacitance and current in Hopfield neural networks have on the stability of networks. The stability criterion constructed by physics parameters is obtained. Thus how the constrained relation of physics parameters affects the stability of Hopfielf neural networks is clear. Based on the study above, the perturbation model of recurrent neural networks is constructed. And the theorems of the existence of solution of perturbation model are presented.

首先，采用Lyapunov泛函法和常数变易法研究Hopfield神经网络中给出的电阻、电容、电流之间的关系以及Sigmoid函数对网络稳定性的影响规律，得出仅由物理模型参数构成的稳定性判据，从而弄清物理模型参数约束关系对Hopfield神经网络稳定性所起的作用，在此基础上，构建了递归神经网络的扰动模型，并通过讨论扰动模型解的存在性问题，给出递归神经网络扰动模型解的存在性定理。

To study the influence of this damper configuration to aeromechanical stability, some work has been done in this thesis. First, dynamic equation of the rotor-hub system was modeled with the generalized Hamilton principle, which can be used to analyze the stability problem in different conditions like on-ground, hovering and flight. When fastening the fuselage, the model can also be used to analyze the stability problem of isolated rotor system.

为了研究这种新型布置减摆器对直升机稳定性的影响，本文所作研究工作如下：首先，本文利用广义的Hamilton原理建立了适用于不同状态的旋翼/机体耦合系统的动力学模型，该模型中将机体固定可以用来分析孤立旋翼的稳定性问题。

First introduction whole wave commutate electric circuit ofwork principle, immediately after introduction the electriccapacity filter the function characteristics of an electriccircuit, and in the electric circuit adoption exaltation stability,exaltation temperature stability and limit flow a type over flowprotection electric circuit of concrete measure with insure anelectric circuit safety stability of work.

首先介绍了全波整流电路的工作原理，接着介绍了电容滤波电路的性能特点，然后引入了具有放大环节和辅助电源的串联可调式稳压电源，并在电路中采用了提高稳定度，提高温度稳定性及限流型过流保护电路的具体措施，以确保电路安全稳定的工作。

The author suppose, the anisotropically undrained shear strength is applied for the first time in the analysis of resistant heave stability for deep braced excavations in the world, the safety factors of two kinds of stability failure are gained, the first kind of factor is stability against sliding, the second is losing the ultimate bearing capacity.

在国内外首次将各向异性不排水剪强度应用到深基坑抗隆起稳定分析中，推导抗滑稳定破坏（包括浅桩支护及刚性支护）和丧失极限承载力破坏两种情况下的稳定安全系数公式，对典型上海软土的模型参数进行计算分析，并对各参数对安全系数的影响进行讨论，最后以三个工程实例加以验证。

According to the basic principles of neural networks and in combination with 35 examples of actual landslide projects, this paper establishes RBF and BP neural network models respectively. The comparative results of the two models show that RBF neural network model has higher accuracy and fewer errors and is more suitable for the stability evaluation of landslide. Therefore, this model is used to calculate the stability coefficients of Yellow Caoba ancient landslide and predict the stability of the landslide.

根据神经网络的基本原理，结合35个实际滑坡工程实例，分别采用RBF神经网络和BP神经网络建立滑坡稳定性评价模型，利用MATLAB编程求解，并对比了两种模型的计算结果，表明采用RBF网络模型计算出的结果精度高、误差小，更适合于对滑坡的稳定性评价；同时，运用RBF网络模型计算了黄草坝古滑坡的稳定性系数，对其稳定性进行了预测，以验证该方法的有效性。

Finally it offers the analysis of the fault-tolerance system as well as its test verification.

这样，运行于空间环境中的系统的设计目标就是在保证系统实时性

However, it is still difficult to find out the real reason of the increase of the keratinized gingiva during the orthodontic extrusion whether it is due to the proliferation of the gingival tissue or to its elastic nature, that is because the proliferation of the fibroblasts as well as the connective tissue changes in volume and the intra-fibers spaces were all immeasurable in most of the studies.

然而，仍然难以找到真正的原因增加的角化牙龈在正畸挤压它是否是由于扩散的牙龈组织或其弹性性质，这是因为增殖的成纤维细胞以及作为结缔组织的变化量和内部纤维空格都是不可估量的，大多数的研究。