稳定性

The purpose is to study the enzyme characterizations of neutral protease fermented by synergism strains of Bacillus natto SH and B1. The optimal reaction temperature, optimal reaction pH, pH stability, thermal stability, metal ions, surface-active agent, inhibiter, simulated intestinal environment on enzyme stability were determined by Folin-phenol method, diversify graphs of residual activity were drawed.

为研究纳豆芽孢杆菌SH和B1配伍发酵产物中中性蛋白酶的性质，通过Folin-酚法测定中性蛋白酶的最适作用温度、最适作用pH值、pH稳定性、热稳定性和金属离子、表面活性剂、抑制剂、模拟胃肠道环境对酶活力的影响，绘制相对酶活力变化图。

Moreover, the stability of the FETD in inhomogeneous media has been discussed, and the condition for stable solution has been given.

并对非均匀介质中的时域有限元的稳定性进行了深入地讨论，给出了其稳定性条件。

The integral inequality is a useful tool when we study the stability theory of differential equation, especially when we study the stability, the estimate of solution and the boundedness of differential equation.

在研究微分方程稳定性理论中，尤其在探讨微分方程的稳定性，解的估计及有界性的过程中，积分不等式是一强有力的工具。

The stability of Lurie type control systems with multiple time-delays and nonlinearities is considered. Based on the Lyapunov stability theory, using an improved new integral inequality and the method of linear matrix inequality, a refined method called the integral inequality approach is presented.

为了研究具有非线性干扰项的多时滞Lurie控制系统的稳定性问题，依据Lyapunov稳定性理论，利用线性矩阵不等式方法，通过一个改进的新积分不等式，给出了一个新的判断系统稳定的新方法―积分不等式法。

It is pointed out that the adaptive controller based on Lyapunov stability theory completes the integration of the square term caused by the integration of the multiplication term, and the integration of the square term is exactly the source of the slow-drift and its instability.

本文用均值平衡位置内摄动分析法，分析了有正态零均值噪音及有未建模动态时MRAC 的慢漂移。指出用Ляцунов稳定性理论或超稳定性理论设计的自适应控制器中，完成相乘项和平方项的积分，是MRAC慢漂移及慢漂移不稳定的根源。

We discussed the positive invariant set,the exsistence and the stability of the equilibrium by the stability theory of ordinary differential equation and the conditions for the global asymptotic stability of the disease-free equilibrium and the endemic equilibrium are obtained.

本文讨论了模型的正不变集，运用微分方程稳定性理论分析了模型平衡点的存在性及稳定性，得出了疾病消除平衡点和地方病平衡点的全局渐进稳定的充分条件。

For its two special cases: N = 0 and R=0, based on nongradient and gradient methods respectively, neural networks for the two cases are constructed. With the Lyapunov theorem and the LaSalle invariant set principle, the proposed networks are proved to be

推广了R_0性质的定义，并证明无约束优化问题目标函数的水平集的有界性与矩阵对的R_0性质是等价的，最后运用Lyapunov稳定性理论和LaSalle不变原理，严格分析了网络模型的稳定性和收敛性，这些模

RESULTS The contents of mezlocillin sodium mixed with fructose injection and invert sugar injection were stable within six hours,and the mixed solutions were clear with stable pH values.

美洛西林钠在多种输液中稳定性良好，但笔者未见其在果糖注射液和转化糖注射液中的稳定性考察。

The stability,semistability and isomorphic classification of linear dynamic systems are relatively important aspects of research.

徐祥线性动力系统的稳定性、半稳定性以及同构的分类是比较重要的研究方向。

The relationship between minimal model characteristic value of electric power system tie flow Jacobin matrix and voltage steady-state stability is was discussed, and the minimal model eigenvalue is was defined as voltage stability abundant degree. On this foundation, the sensitivity of voltage stability abundant degree to control variables and to PQ point load are was defined in order to seek the factors of impacting voltage stability and explore the voltage weak point, and give out their algorithm simultaneously.

讨论了电力系统潮流雅可比矩阵最小模特征值与系统电压静态稳定性的关系，将最小模特征值定义为电压稳定裕度，在此基础上定义了电压稳定裕度对控制变量的灵敏度和PQ节点负荷灵敏度，用以找出对系统电压稳定性造成影响的因素和寻找系统电压薄弱点，同时给出了它们的算法。

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。