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This paper studies chaotic motions in a nonlinear oscillatory system perturbed by external harmonic force and bounded noise excitation.

研究谐和外力与有界噪声激励联合作用下的一类非线性振子的混沌运动。

First, for state estimation problem of the linear stochastic systems with uncertainties in both the state matrix and the noise matrix, a new satisfactory estimator is constructed with stochastic theory, which can guarantee that estimator error system with bounded perturbed model parameter satisfies the constraint indexes that is given. Thus a sufficient condition of solving satisfactory estimation is obtained; secondly, the algorithm of designing satisfactory estimator is presented by analysis.

首先，根据满意控制思想，针对一类在状态矩阵及噪声矩阵中均含有不确定性的随机系统，设计一种满意估计器，使预测误差系统在模型的参数发生扰动时，依然满足预先给定的设计约束指标，得到了满意估计问题求解的充分条件；然后根据分析给出了满意估计器设计的算法。

In this paper,we study the oscillation properties of solutions to the following problems of three classes of delay parabolic equations of neutral type.where Ω is a bounded domain in R~n with a piecewise smooth boundary ?

本文研究了三类中立型时滞抛物方程：解的振动性。其中G=Ω×(0，+∞)，Γ=Ω×0，+∞，ΩR~n是有界域，边界Ω逐片光滑，Δ是拉普拉斯算子，？

A3 B; a {+ E Q* P3 q a6 Z After Matsui popped up to end the inning, Sabathia pumped his fist and screamed as he bounded off the mound. The bullpen was perfect behind him until a pinch-hit single by Jason Giambi with two outs in the ninth.2 N, Q! W f7 E% S0 t7 p

在松井的小飞球结束那局后，Sabathia下投手丘时振奋的握拳大叫，接他之后上场的牛棚表现完美，直到9上2出局时才被代打的Jason Giambi挥出一支安打。

A closed plane figure bounded by straight sides .

被垂直的面限制边界的有限平面形。

This belt is bounded on the north by a group of large plutonic masses.

该带的北部被一群大规模的深成岩体所限。

The rate of convergence of pointwise approximation for local bounded functions are obtained.

引入一种积分型的 Szász- Bézier算子，并研究其逼近性质，得到了此类算子对局部有界函数的逼近阶估计公

With a suitable performance function and an initial control that made the closed system bounded, a serial of controls that made the performances better could be obtained by policy iteration, and ergodic Markov chains were constructed by the state serial with the corresponding feedback control.

在合适的性能指标并能找到一个使系统性能有界的控制的前提下，通过策略迭代可以求出逐步改善系统性能的控制序列，同时得到状态序列在相应反馈控制作用下构成遍历的马尔可夫链。

The simulation results demonstrate that there is locally favorable distribution in the probability density function of the basic random variables in bounded environment.

仿真结果表明，在有约束环境中该基本随机变量的概率密度分布显示出明显的局部偏好性。

By this equality,we prove that the amplitude of a compact DG module M over a cohomologically bounded DG algebra A is just the sum of the amplitude of A and the projective dimension of M.

对于一个同调有界的连通DG代数上的紧的DG模，我们由此等式可得其振幅与DO代数的振幅的差恰是它的投射维数。

Plunder melds and run with this jewel!

掠夺melds和运行与此宝石！

My dream is to be a crazy growing tree and extend at the edge between the city and the forest.

此刻，也许正是在通往天国的路上，我体验着这白色的晕旋。