充分条件

The paper is concerned with the robust stabilization of uncertain systems with delayed state and input, a sufficient condition for the stablization of the system is derived by using a memoryless linear state feedback control law.

主要研究了具有状态和输入均带有时滞的线性不确定系统的鲁棒镇定问题，进而导出了系统可以用一个无记忆的状态反馈控制率鲁棒镇定的充分条件，最后提出了一个鲁棒稳定化控制器的设计方法。

Using the concept of Quadratic Stability and the approaches of predictive control, such as finite horizon and horizon receding, memoryless robust control and sufficient conditions of its existence and closed-loop stability are presented.

采用二次型稳定的概念，并借用预测控制中的时域有限及时域滚动的方法，给出了无记忆鲁棒控制律，并给出了其存在和使闭环系统渐近稳定的充分条件。

The stability and the periodic nature of the positive solutions ofare considered, we will prove that there exist monotonical solutions and converge to the unique positive equilibrium point of the equation ifα≠β.

第四章讨论了方程的全局稳定性，其中F=fx_(n-r1，x_(n-r2)，…，x_，G=gx_(n-m1，x_(n-m2)，…，x_，H=Hx_(n-p1，x_(n-p2)，…，x_，并给出了x=1是方程的唯一正解且全局渐进稳定的充分条件。

Based on the dynamical system of a tuberculosis spread m odel, the dynamical behavior of a tuberculosis spread model with constant immigr ation was discussed, and the local and global asymptotic stability of the endemi c equilibrium on this model is studied by using Hurwitz criterion and multiple m atrix theory. Sufficient conditions for the local and global asymptotically stab ility of the endemic equilibrium on this model are obtained.

在结核病传播的数学模型的动力学系统基础上，利用 Hurwitz 判据和复合矩阵理论，讨论了具有常数移入的结核病传播的数学模型的动力学性质，研究了具有常数移入的结核病模型的地方病平衡点的局部和全局渐近稳定性，得到了具有常数移入的结核病模型的地方病平衡点是局部和全局渐近稳定的充分条件。

These results indicate that initiation reaction is not a plenary condition for enhancing degradation efficiency of ozonation.

以上结果表明，自由基引发反应并不是臭氧化降解效率提高的充分条件。

Based on the assumption of the small perturbance,sufficient conditions of permanence for above systems are obtained by employing the known conclusions and Lyapunov function method.

在扰动适当小的假设下，应用有关脉冲自治系统的结论和Lyapunov 方法讨论该扰动系统的持续性问题，给出了该类系统持续生存的充分条件。

We also derive the sufficient conditions of robust stability by rank-1 decomposition of the matrix under the assumption that uncertainty is matrix polytope structured uncertainty.

假设不确定性为矩阵多胞形结构不确定性，利用矩阵的秩-1分解，得出系统鲁棒稳定的充分条件。

In this paper include: Successfully using iterative analysis method get some pulsive delay differential equations and sufficient condition of the existence,uniqueness and stablility of their solutions.

本文主要工作包括：利用迭代分析方法很成功地获得了某类脉冲和时滞微分方程解的存在性和唯一性，以及其解稳定的充分条件。

The second result provides analogous conditions that are sufficient for the existence of a quadratically stabilizing dynamic PDC controller.

第二个结果给出了类似的二次型稳定动态反馈控制器存在的充分条件。

Sufficient conditions under which the sliding mode system is quadratically stable are also deduced.

同时，也给出了系统渐近稳定的充分条件。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！