稳定性条件

Work on the valve under the conditions of the above-mentioned unbalanced force, the choice of the method to change the direction of its role, is usually closed to flow into flow-based open-type, in general, the valve can easily solve the stability problem.

对阀工作在上述不平衡力条件下时，选用改变其作用方向的方法，通常是把流闭型改为流开型，一般来说都能方便地解决阀的稳定性问题。

These uncertainness comes from the external environment,the structure and parameters of systems.Self-adaptability of complex systems shows that when the environment of system was changed,system would make s...

当控制器及参数满足一定的条件时，通过构造误差系统的Lyapunov函数，得到误差系统的零解的全局渐进稳定性，从而使调控后的系统与原来系统的解达到同步。

Uncompensated power stability is readily achieved across the required dynamic range and across manufacturing variations and temperature extremes.

此外，在所需的动态范围上以及制造制程的变化范围内和极端温度条件下也很容易获得未补偿的功率稳定性。

It is introduced at first about HDS description and modeling and about an improved model of HDS. The character of HDS, such as stability, controllability, observability and unflappability, are analyzed and the corresponding criterion is defined. All conclusions can be generalized to other types of HDS.

首先介绍了HDS的描述与建模问题，给出了改进后的HDS数学模型，并分析了HDS的稳定性、能控性、能观性以及可镇定问题，给出了相应的判别条件，所得到的结论可以推广到其它类型的HDS。

At first, using fixed point theorem, we establish the sufficient conditions which guarantee the existence, uniqueness, uniform stability of periodic solutions for the equations.

首先，我们利用不动点定理，建立了保证该类方程周期解的存在性、唯一性及一致稳定性的充分条件。

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。

In order to study the uniform persistence and global stability of a delayed nonautonomous three specie predator-prey Lotka-Volterra system without dominating instantaneous negative feedback .

为了研究一类没有即时负反馈控制的3种群捕食者-食饵系统的持续性和全局稳定性；在给定的条件下，利用不等式知识，证明了系统的一致持续性。

A stability proof is given strictly in the sense of Lyapunov. It is shown that all the signals in the closed loop systems are uniformly ultimately bounded.

在很弱的假设条件下，应用李雅普诺夫稳定性理论证明了闭环系统内的所有信号为一致最终有界。

An apparatus simulating the discharge in AC PDP cell is thus designed. It consists of a driving power, discharge cell and vacuum system. Measuring are made possible on the working voltage and stability of dielectric protective film made from different materials with a variety of different processes. The secondary electron emission property can thus be properly reflected. Examinations are also the gas species, mixture composition ratio and pressure, discharge gap, etc., with reference to the discharge characteristics in AC PDP.

该装置由驱动电源、放电室及真空系统组成，能够模拟AC PDP的工作条件和过程，可用来测量AC PDP工作过程中用不同材料、方法及工艺制成的保护膜的工作电压、稳定性等，从而衡量保护膜的二次电子发射性能，还可用来测量AC PDP放电单元内所充气体的种类、混合比例、压力以及放电间隙的距离等参数对AC PDP放电特性的影响。

Study of experimentation, in which the medicament acted on the resistance and occlude action of venomousness and poisonous ingredient of gangue-brick, showed that the medicament on gangue-brick had the effect of pervading and lixiviating the venomousness ingredients.

在制砖扩大试验中，对实验室试验制砖的各项技术指标的最佳条件进行了验证，考查其重现性及误差；对扩试设备运行的连续性、稳定性和可靠性进行了考查；对试验中砖制品出现的技术问题进一步补充、完善，使扩试砖制品质量稳定并达到国家相应建材标准；根据扩试结果进行经济成本估算等，使尾矿制砖技术更趋完善。

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。