查询词典 asymptotic stability

The stability equation and the standard of the stability safety factor were gained by the stability analysis and calc...

所研制的新型单体液压支柱具有结构工艺简单、工作行程大、使用范围大、稳定性安全系数大、重量轻、操作安全可靠等特点。

Relationships among the structural stability、stability、loss of stability and bifurcation are also discussed.

文中还讨论了结构稳定、稳定、失稳和分叉之间的关系。

At the same time, the paper uses the spot price expression based on security region, which takes the consideration of transmission line thermal stability constraint and static voltage stability constraint and transient stability constraint simultaneously, thus the main security constraints of power system can be considered comprehensively in the security cost allocation.

同时，该文使用基于安全域的节点电价表达式，其中计及了输电线路热稳定约束、系统的静态电压稳定约束和暂态稳定约束，使安全成本的分摊能综合考虑电力系统中主要的安全约束。

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。

According to time, voltage stability can be divided into longer-term voltage stability and transient voltage stability.

从时间上划分，电压稳定性问题可以分为中长期电压稳定和暂态电压稳定。

The software for dynamic stability, transient stability and voltage stability of power system with various control schemes about SVC is developed.

研制并完成了带有SVC的电力系统动态稳定、暂态稳定和电压崩溃分析软件。

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。

The dissecting of samples in group2 were difficult. The root of pulmonary artery and ascending aorta failed to be unfolded because fibrous tissue was tough, right and left fibrous trigone were too firm to be solved by hand. Cardiac muscle fibers couldn't be stripped along myofibrillar trajectory since they were prone to break because of their friability.

组2的心脏解剖困难，表现为纤维组织坚韧，游离肺动脉非常困难；徒手无法松解左、右纤维三角，肺动脉和主动脉根部的游离非常困难；心肌纤维坚硬、质脆，解剖时容易断离成碎块，无法沿纤维走行方向剥离。

We have battled against the odds in a province that has become increasingly violent.

我们对在一个争夺日益激烈省的可能性。