随机

The problems of random nonlinear operators in Banach spaces belong to fields of random nonlinear functional analysis.

Banach 空间中的随机非线性算子问题属于随机非线泛函分析的范畴。

Based on the recent situation and trend of the nonlinear systems, we present some recent developments and important problems in stochastic dynamics such as response, bifurcation , chaos, synchronization and control.

摘要介绍了非线性随机动力学的响应、分岔、混沌以及混沌同步与控制的研究现状和发展趋势，探讨了随机复动力系统、时滞系统、逼近方法和数值方法研究中的若干问题及其进展。

The exploration of nonlinear random vibration with random parameters has engineering background and great academic value, and it is of theoretical significance as well.

随机参数非线性结构随机振动响应分析的研究有着广泛的工程背景和重要的理论意义与学术价值。

By uniform distribution of random variables generate normal random variable algorithm.

由均匀分布的随机变量生成正态分布的随机变量的算法。

3The variables that described changing of gas in the room of gas operatedand moving law of piston are thought random.The numerical value answer aboutrandom differential equation is given.

3考虑描述自动机气筒压力变化规律和活塞运动规律的控制方程中各变量的随机扰动，提出了求解随机微分方程组的数值解法。

With Qi-deficiency and blood-stasis syndrome, a randomized double-blinded controlled clinical trial was used in this study. One hundred and eleven cases were randomly divided into two groups, 56 cases of which were treated with Naoshuankang and basic treatment as the treatment group and 55 cases received placebo and basic treatment as control.

为客观评价益气活血化瘀复方脑栓康(由黄芪、水蛭、葛根等中药组成)治疗急性缺血性中风气虚血瘀证的临床疗效，采用随机双盲对照临床试验，将 111 例急性缺血性中风气虚血瘀证患者随机分为两组。

Methods: In this prospective, singleblinded, controlled clinical trial, thirtyone patients with gastric cancer operatively treated were randomly divided into two groups, with 14 patients in control group and 17 in study group.

采用前瞻性、随机、单盲、对照研究，将31例胃癌手术患者随机分为对照组14例和研究组17例。

Optimal consumption and investment ; stochastic volatility ; stochastic optimal control ; value function

最优消费和投资；随机方差；随机最优控制；值函数

Based on the principle of optimality,the search problem is then transformed to an equivalent problem of deterministic distributed parameters system,represented by a second order PDE.

采用分析的方法来研究随机运动目标的最优搜索问题，并将原问题转化为由一个二阶偏微分方程所表示的确定性分布参数系统的等价问题，推导出随机运动目标的最优搜索问题的HJB方程，并证明了该方程的解即是所寻求的最优搜索策略。

The results show that, with the increasing order of polynomial chaos, the probability density curve of a response approaches the results from Monte Carlo simulations.

结果表明：随着随机多项式次数的增加，随机响应面所得到的响应概率密度曲线愈加趋近于由蒙特卡罗方法所得到的概率密度曲线。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。