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However, in the current highly uncertain environment a floor of sorts is very important to help stabilise sentiment.

然而，在目前高度不确定的经济大环境下，这样的支持平台对帮助稳定市场情绪是极为重要的。

A new robust reliability method for stabilizing controller design of uncertain systems is presented based on quadratic stability criterion.

基于二次稳定性准则，提出了参数不确定系统鲁棒镇定控制器设计的鲁棒可靠性新方法。

On the basis of exact stochastic nonlinear systems, the connection between the $L_2$-gain of the uncertain stochastic nonlinear systems and the solution to a certain HJI inequality is established.

在精确模型随机非线性系统$H_\infty$基础上，建立了模型不确定系统$L_2$增益和HJI不等式的可解性的关系。

Stochastic optimal control is an important content of the optimization theory for uncertain systems too.

随机最优控制也是随机不确定系统优化的一个重要内容。

The main contributions of this dissertation are as follows: In the first, Exponential stability of a class of stochastic control systems with uncertain parameters is discussed.

本学位论文的主要工作有以下几个方面：第一，讨论了一类具有不确定参数的随机控制系统的指数稳定性。

The uncertain factors in electricity market that power generation companies will face with are analyzed, then a stochastic game model is built to realize bidding equilibrium of active power among these companies and a concept of virtual unit is led in to quantitatively calculate the energy shortage.

分析了市场环境下发电商面临的不确定性因素，建立了发电厂出力与报价均衡的随机博弈模型，引入了"虚拟机组"的概念对能源短缺进行定量计算。

Quasi Hamiltonian system; nonlinear stochastic optimal control; robustness; robust control; parametric uncertainty; uncertain disturbance; Bouc-Wen hysteretic system; Preisach hysteretic system; minimax optimal control; stochastic stabilization; stochastic averaging method; stochastic dynamical programming principle; stochastic differential game; maximal Lyapunov exponent

国家自然科学基金；拟Hamilton系统；非线性随机最优控制；鲁棒性；鲁棒控制；参数不确定性；不确定扰动； Bouc-Wen滞迟系统； Preisach滞迟系统；极小极大最优控制；随机稳定化；随机平均法；随机动态规划原理；随机微分对策；最大Lyapunov指数

The movement of stock price during a period is uncertain, which follows one stochastic process.

一段时间内股票价格价格的变动是不确定的，完全是随机的。

An approach to the reliability of structural systems with uncertain parameters subjected to stochastic process excitation is presented.

提出了随机过程荷载激励下，具有随机参数的结构系统可靠度分析的一种方法。

In this paper, we take the Priori distribution in the Stochastic Linear Programming as the uncertain information quantity.

本文把随机线性规划问题的先验分布，理解为对该问题的不确定性的信息的度量，从而利用信息理论来确定问题的先验分布。

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％。