稳定性判据

The stability of a liquid helium free superconducting magnet could be analyzed using the adiabatic stability criterion because there is no cryogen in the system.

制冷机直接冷却的超导磁体，没有冷却介质，因此，用绝热稳定化判据分析其稳定性是合适的。

The relationship between elastic strain energy and the reduction coefficient can be used as criteria in slope stability analysis using strength reduction method.

研究结果表明：采用强度折减法，当边坡处于稳定状态时，折减系数增大引起边坡变形增大，导致边坡体弹性应变能随之增大；但是，边坡岩土体能够承受的弹性应变能是有极限的，当折减系数增大到某一值时，边坡体的弹性应变能达到极限，再增大折减系数将导致边坡失稳破坏；边坡体弹性应变能与折减系数服从指数关系；利用弹性应变能与折减系数关系曲线得到的边坡安全系数与采用其他经典的方法所得边坡安全系数基本一致，弹性应变能随折减系数变化而变化的规律可以作为边坡稳定性强度折减法分析的失稳判据。

In this paper, a new method used to deal with the motion ability is studied deeply based on Routh-Hurwitz Criterion. The advantage of this kind of analysis method consists in the fact that after establishing the equation in differential calculus for the motion system, there is no need to know a root of the equation, if you know the root signs, you can judge the zero solution stability of the system.

本文利用劳斯－赫尔维茨判据(Routh-Hurwitz Criterion)对机械系统中离心转速调节器的运动德定性进行了分析，这种分析方法的优点就在于：建立系统运动微分方程的特征方程后，不必求解特征方程的根，只需知道根的符号就可判断系统的零解稳定性。

It is very practical for geotechnical engineering design.Fundamentals of the limit state finite element method are discussed in this paper,such as the definition of safety factor and the selection of yield criteria.Through a series of case studies,the applicability of the proposed method is demonstrated.

本文探讨了极限分析有限元法的一些基本原理，包括安全系数的定义、岩土体整体失稳的判据、屈服准则的选用等，并将该方法应用于边坡、地基、隧道稳定性计算，算例表明了此法的可行性，拓宽了该方法的应用范围

A geometrical method of judging whether nonlinear differential equation of oscillation has stable solution—phase plane method, is applied to analyze operation stability for the first time.

首次将研究非线性振动微分方程稳定解判据的几何研究方法——相平面法——用于脉冲燃烧运行稳定性研究。

The studies about the periodicity and stability is of basic requirement for the verification and the design of hybrid control system.

研究了线性切换系统的周期性和稳定性规律，给出线性切换系统周期性的充要条件及平稳性的充分性判据。

The stability of a typical buffer-oriented playout synchronization system is analyzed based on Routh criterion.

文章应用Routh判据，对一种典型的基于缓存数据量控制的播放端同步控制系统[1]进行了稳定性分析。

The Routh criterion is a method for determining continuous system stability, for systems with an nth-order characteristic equation of the form

劳斯判据是用来判断连续系统的稳定性的，如系统具有如下n阶特征方程形式

Based on the theory and experiments, the paper builds up the simplified mathematical model of the servo control system, deduces the system control rigidity expression, and points out the method to improve control rigidity. According to Routh stability criterion, the analytic stability condition is solved, which shows the conflict between the stability and control rigidity and that gyroscope is the key factor of the conflict.

论文结合理论和试验建立了光电稳定伺服控制系统的简化数学模型，推导出系统控制刚度表达式，指出提高控制刚度的方法；利用劳斯判据求解出系统稳定的解析条件式，描述了稳定性与控制刚度之间的矛盾，并指出陀螺是矛盾关键。

According to the Routh criterion, the linear interval mathematical model system stability's necessary and sufficient conditions are the first row numbers and are all positive numbers; they equal to its lower bound over zero.

根据Routh判据，区间数学模型的线性系统稳定性的充要条件是第一列全部为正数，等价于其下界大于零。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。