充分条件

A new sufficient condition of passive control for the systems is given by using the methods of Riccati equation, Lyapunov stable theory and matrix theory.

利用Riccati方程的方法，Lyapunov稳定理论和矩阵理论，给出了一类具有饱和输入的线性系统可无源控制的一个新的充分条件、利用Riccati方程的解，提出了该系统的一种无源控制器的设计方法。

On the existence of memoryless full state feedback controllers, we present a sufficient condition and give a design method in the form of Riccati equation.

关于全状态无记忆反馈控制器的存在性，给出了Riccati方程型的充分条件和设计方法。

Besides, they give the sufficient condition for the validation of the definition of a rollback block.

此外，还给出了恢复块定义有效的充分条件。

First, a map between the cones and tangent surface on C-Bézier curve und two-dimensional plane is found respectively and then a ruled surface between two Bezier curves is constructed and a sufficient condition on its developablity is given.

zier曲线上锥面、切线曲面的展开方法。然后，构造两条空间B？zier曲线上的直纹面，给出了它成为可展曲面的一个充分条件，并通过保角保长原则，将其贴合到平面上。

We prove the local solvabiity of the problem by schauder fixed point theorem , and establish the existence and the inexitence of global solutions.

证明了Neumann 边值问题古典解的局部存在性，并给出了整体解存在和解在有限时刻内爆破的充分条件。

The existence of triple positive solutions for second order multi-point boundary value problem is investigated by using Avery-Peterson fixed point theorem. Gives the sufficient conditions for the existence of three positive solutions of the problems.

研究一类二阶非线性微分方程的n点边值问题正解的存在性，应用Avery-Peterson不动点定理，给出这类边值问题至少存在3个正解的充分条件。

The resarch studies the space-like hypersurfaces with constant square of length of second fundamental form in locally symmetric Lorentz spaces, Some sufficient conditions for the hypersurfaces to be totally umbilical are obtained.

研究局部对称Lorentz空间中第二基本形式模长平方是常数的类空超曲面，获得了这类超曲面是全脐的若干充分条件。

At last we establish sufficient conditions for upper semicontinuity of the pertrubation map.

最后，我们再建立摄动映射的上半连续性的充分条件。

Then, one class of second-order semilinear differential systems with two parameters is considered.

第五章，用锥上的Deimling不动点定理分别讨论了依赖于参数的一阶中立型泛函微分方程和一阶中立型泛函微分系统，导出了一阶中立型泛函微分方程以及一阶中立型泛函微分系统存在两个正周期解，存在一个正周期解以及不存在正周期解的充分条件。

In neural networks learning, the Sigmoid function is improved and the stability conditions of backpropagation algorithm is analyzed theoretically.

在神经网络学习中，改进了前向神经网络中Sigmoid作用函数表达式，并在理论上分析了反向传播修正权值的迭代算法稳定收敛的充分条件。

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！