渐近的

In the first part, first of all, we have a priori estimate for solution of the reaction-diffusion equation with initial condition and Dirichret boundary conditions. Then, we construct a semidiscrete Legendre pseudospectral scheme, and have a priori estimate for approximate solution. We discuss the asymptotic stability of approximate solution. At last, we get a error estimation on large time for solution of the semidiscrete system.

首先，对此类方程初边值问题的解进行了先验估计；然后建立方程半离散的Legendre拟谱格式，并对近似解进行了先验估计，讨论了近似解的渐近稳定性；最后，得到了半离散系统解的长时间误差估计。

When a matrix inequality is satisfied, based on the modified Lyapunov function, the system without unknown disturbance can be quadratically stabilized under static state feedback control.

然后研究离散时间时延系统的鲁棒跟踪控制问题，通过求解一个LMI得到控制器的增益矩阵，进而使得闭环系统的状态变量渐近跟踪上任意预先设定的轨迹。

This paper discusses a discrete stochastic Lotka-Volterra competition systemwhere ε_1,κ are i.i.d N(O,1),ε_2,κ are i.i.d N(0,1), p is is revelant coefficient of ε_1,κ and ε_2,κ. Maximum Likelihood Estimation of parameters and asymptotic characteristic of the system are studied.

本论文主要讨论离散随机Lotka-Volterra竞争系统其中ε_1，κ是i.i.d N(0，1，ε_2，κ也是i.i.d N(0，1)，ρ是ε_1，κ与ε_2，κ的相关系数参数的极大似然估计及估计模拟和系统的渐近性。

Researching and developing riderless bicycle is a important work offering scientific and actual significance . Internal and overseas research actuality was summarized in this paper , existent problems was analyzed , and then primary development direction of riderless bicycles was presented .

而自行车机器人实际上就是一种无人驾驶的自行车，因此，自行车机器人的控制问题相当困难，如不能采用连续或可微的纯状态反馈实现系统的渐近稳定，不能采用非线性变换实现整体线性化等。

The proposed method is applied to Sepic converter, Lyapunov's function is constructed successfully and an asymptotic stable control law is obtained, simulation results confirm the effectiveness of the proposed control law.

以Sepic变换器为例，成功构造出Lyapunov函数，并且推导得到一种使Sepic变换器控制系统渐近稳定的控制律，仿真结果证实了该文提出的新型控制律的有效性。

In consideration of the nonlinear characters of driving chain, with the general perturbation method, the asympototical solution to the nonlinear dynamic equation of the valve train with multinomial timing cam of symmetrical type is reached in this paper.

本文在考虑到传动键的非线性特性情况下，用普通小参数法求出了具有对称多项式凸轮的配气机构气门的渐近解。

The baryon is of fundamental interest to quantum chromodynamics and its application.

量子色动力学作为描述强子间相互作用的基本理论具有两个跟夸克-胶子跑动耦合常数有关的重要性质：大动量转移时的渐近自由和长程禁闭行为。

To tackle this issue, we construct a goodness-of-fit test for checking the validity of copulas with some specific form.

因此，基于copula函数的经验分布，我们提出了一种用于检验具有某种特定参数结构的copula函数拟合数据优良性的方法，并得到了此检验的渐近性质。

A framework of stability theory including the definition of stability and asymptotic stability was put forward based on the model of DAHS.

建立了含有微分代数子系统的混杂系统的数学模型，并提出了包括该类混杂系统稳定性和渐近稳定性定义在内的理论框架。

We addressed the solutions of the collision-less plasma Vlasov-Poisson system, involving Vlasov equation coupled with Poison equation, in quasi-neutral limit. The two asymptotic-preserving particle-in-cell methods were developed and applied to a model of one-dimensional, periodic perturbation plasma.

针对准中性无碰撞等离子体的Vlasov方程及与其相耦合的求解电势的Poisson方程所组成的Vlasov-Poisson系统，提出了两种渐近保持PIC算法，并将其运用到一维周期性波动等离子体模型上。

Recall that, in the Kolmogorov axiomatization, measurable sets are the sets which have a probability or, in other words, the sets corresponding to yes/no questions that have a probabilistic answer.

延期开工的Kolmogorov宣布要衡量所有套职能有限许多坐标限制在于衡量子寅。换句话说，如果是/否的问题回答f可看的价值观念在许多最有限坐标，然后它有一个概率的答案。

The experimental results showed that the algorithm can filter singular points and remain fixity of the target edge.

实验表明：基于模糊理论的图像智能滤波方法比常规图像滤波方法运算量小，它既能去除奇异点，又能保持图像中目标的边缘不变性，具有很好的滤波效果。