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It analyzed impact principle, and researched viscidity and springiness model of soil. So the relation of impact and soil was found, and the dynamic model of impact bar-soil system was established. After analyzing and researching the model, a better dynamic model with soil impact character was gained.

针对土壤的物理特性，对冲击原理进行分析，并对土壤的粘弹性模型进行研究，建立冲击与土壤之间的联系，为土壤压实冲击测量装置建立了冲击杆—土壤系统的动力学模型，并对模型进行分析研究，简化出更适合土壤冲击特性的动力学模型。

The dynamic character of the heat recovery steam generator is important in analyzing dynamic character of an advanced combined cycle.

余热锅炉动态特性的研究是燃气-蒸汽联合循环系统动态特性研究的重要环节。

The third chapter study on the dynamic correlation multivariate stochastic volatility dynamic hedging theory model.

第四章是对基于DC-MSV的动态套期保值模型进行实证，并与三种常用模型进行对比研究。

In order to verify validity of the proposed methods, a dynamic stochastic route choice model based on Cross-nested Logit model was employed to generate traffic environment of dynamic stochastic user equilibrium.

为了验证本文提出的信号控制方法的有效性，利用Cross-Nested Logit 模型构建了动态随机路径选择模型来获得动态随机用户均衡的交通环境。

Furthermore, attack stream model and dynamic evaluation model were presented here by applying theory of stochastic process. The dynamic evaluation model was used to evaluate the existing distributed CA schemes in mobile Ad Hoc network.

针对当前移动Ad Hoc网络分布式CA方案缺乏有效的安全性能评估模型问题，利用随机过程理论，提出了攻击流模型和网络安全性动态评估模型，并利用该动态评估模型对分布式CA方案的安全性进行了评估。

This is the Massachusetts Institute of Technology on Dynamic Programming and Stochastic Control in courseware, want to learn dynamic programming and stochastic control to all of us help.

详细说明：这是美国麻省理工学院的有关动态规划与随机控制方面的课件，希望对学习动态规划和随机控制方面对大家有所帮助。

In contrast with the second, third, fourth, and fifth chapter, the sixdi chapter analyzes the effect of the network externality and the firms' competitive strategy on the dynamic evolution of the market widi a stochastic dynamic game model.

为了验证本文的主要研究结论，各章节均结合相关的案例进行了定性讨论和分析。

Extending the dynamic evolution model of technology standard with network externality to the case of multi firms, based on a stochastic dynamic game model and exploring intensively the effect of network externality on the technology evolution.

但对于新进入厂商而言，它可以选择兼容或不兼容；如果新进入厂商采用适配器和互联等兼容策略，则在位厂商只有掌握了足够的网络规模基础优势，才会拒绝新进入厂商与其兼容，否则它将会选择与新进入厂商兼容。

This paper is mainly the dynamic input-output model that the time lag is one, which is base on the above models. After studying, we consider stochastic factor step by step in it, namely when consumption coefficient matrix is stochastic (when investment matrix is stochastic, it is almost same. So we dont research it), and they are both stochastic, then we research the stable increase solution. We utilize the means of the modern stochastic analysis and Markov process, that the stochastic dynamic input-output model don not exist the stable solution is proved. Namely, economic system must is adjusted constantly. The probability that the collapse time of the economic system is o is one.

本文对在上述基础上构造的一类时滞为1的动态投入产出模型，进行了深入研究，将随机因素逐步考虑进去，即对投入产出消耗系数矩阵为随机的情况(投资系数矩阵为随机的情况与投入产出消耗系数矩阵为随机的情况大致相同，这里就不再证明)，以及二者同时为随机矩阵时所得到的动态投入产出模型的稳定增长解问题，利用现代概率分析及马氏过程的工具，证明了不存在随机动态投入产出模型的稳定增长解；即投入产出模型反映的经济系统必须经常进行调整，其崩溃时间为无穷大的概率为零。

Stochastic structure dynamic analysis and optimization design based on dynamic reliability have wide engineering background and are of important theoretical significance and research worthiness.

随机结构系统的动力分析与动力可靠性优化设计是结构工程领域中的前沿性课题，具有广泛的工程背景和重要的理论意义与学术价值。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷