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波动

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The wave process of sedimentary basin is a form of earth's crust movement,which is controled by both cosmogony and earth evolution.

沉积波动过程是地壳波状运动的具体表现,它是各种天文因素、地质因素共同作用的结果,沉积波动过程的时空演化控制着地层层序的时空展布特点。

On the basis of these studies, the statistical cross-talk noise model was successfully proposed and built.

通过分析互连几何参数波动对互连寄生参数的影响,得到其近似的函数关系表达式,在此基础上建立了考虑工艺波动的串扰噪声的统计模型。

From 1920s up to Now, various techniques and methods for wave field decomposition, propagation and migration/imaging have been well developed, such as the Kirchhoff asymptotic method, frequency-wavenumber domain phase-shift and phase-shift-plus-interpolation methods, and the one-way wave equation based phase-screen and generalized screen methods, etc.

自上个世纪二十年代至今,波场分解、传播与偏移成像技术经历了将近一个世纪的发展,形成了多种不同的方法,如Kirchhoff波动方程高频近似解方法,频率-波数域的相移(phase-shift)方法和相移-内插方法,以及在混合域中基于单向波动方程的相位屏、广义屏方法等。

First of all, the evolutionary game model of this system is built, according to a population and determinately dynamic function in evolutionary game theory, and quilibrium structure and effect factors of the evolutionary system are analyzed. Next, the evolution quilibrium characteristics of investor behaviors in China's securities market are researched as a demonstration, and the reasons why noise traders become popular in the process of investor behavior evolution are explained, based on its evolutionary mechanism. Moreover, the influences of investor behavior evolution on share market's fluctuation are researched through setting up its noise trade model. When noise traders are dominant in securities market, price discovery function and resource configuration effect are also analyzed. Finally, when noise trade become popular, the shortage of some policies, such as, enlarging institution investor and short sale is explained, and some good suggestions are provided according to former research results.

首先,应用进化博弈论中的单群体确定性模仿者动态方程建立证券投资者行为的进化博弈模型,并对进化系统的均衡结构特征及其影响因素进行分析;其次,根据我国证券市场实际,对我国证券投资者行为进化的均衡结构进行实证分析,并从投资者行为进化的角度,解释我国证券投资者行为进化为噪声交易主导市场的原因;然后,通过建立股市波动的噪声交易模型,研究投资者行为的进化对股市波动的影响,并进一步分析我国噪声交易主导市场时对市场价格发现和资源配置功能的影响;最后,根据理论及实证的研究成果,分析噪声交易主导市场时大力发展机构投资者等制度作用的有限性,并进一步提出我国证券市场相机治理的政策建议。

Thirdly, fuzzy control method and PID method were used respectively to design temperature self-adjustment controller of carbon fiber concrete laminate beam,by the MATLAB simulation it is found that the PID method has higher speed but is more sensitive to the fluctuation of system parameter ,it is suit to the regulating when the heat transfer coefficient fluctuates diminutively and the structure has little heat transfer with the environment;fuzzy control can be adapt to the parameter variety in a large scale , it is suit to the regulating when the heat transfer coefficient fluctuates greatly.

分别采用PID和模糊控制策略设计了温差自调节控制器,通过MATLAB仿真研究得出:PID方式具有更快的调节速度,但对系统参数变化较敏感,适合系统与外界对流交换较微弱,对流参数波动不大时的调节;模糊控制能够适应系统参数在较大范围内的变化,适合对流参数波动较大时的调节。

This paper mainly studies the technique of the width control of E2 edger mill which belongs to Panzhihua Iron and Steel Industry. It introduces the development of the technique. In addition, this paper describes the Automatic Width Control technique in detail, including the composing and the control principle of the AWC hydraulic system.

本文主要研究了攀钢E2轧机的自动宽度控制液压系统,介绍了宽度控制的发展概况,并详细论述了E2轧机宽度自动控制系统的组成及原理——针对轧制力变化引起立辊轧机有载辊缝波动而相应调节侧压位移量以补偿辊缝波动

To be able to calculate the volatility of the spread, we must equalize the volatilities of the individual options.

为了能够计算出波动的传播,我们必须平衡波动的个人选择。

This paper proposes an equivalent second order elastic wave equation to solve the problem of being unable to completely separate the coupled P and S wave by full elastic wave equation.

给出了一种等价的二阶弹性波动方程,以解决弹性波场中完全弹性波动方程不能完全分离耦合的纵、横波波场问题。

The results show that the force coefficient, the equivalent inductance and resistance are constant when the moving magnets oscillate in an operating region.

结果表明:推力系数在一定的动子行程内是基本恒定的,在上死点附近,推力系数有减小趋势;等效电感和电阻在一定的工作电流内是基本恒定的;直线电机等效电阻及电感的波动对活塞位移自传感器的输出几乎无影响,推力系数的波动影响活塞位移自传感器输出幅值的大小;若要提高直线压缩机活塞位移自传感器的输出精度,需要对模拟电路参数进行微调,以确保输出不失真,同时需要在活塞上死点附近对自传感器的输出进行修正。

There are totally five chapters in the paper. Chapter 1 is the introduc-tion,and extreme value theory and methods and modelling for returns fat tails are introduced systematically in Chapter 2.This chapter also presents mean excess function and de Haan's moment estimate to decide on the reasonable exceedance threshold. Chapter 3 describes in detail non-linear time series mod-els such as GARCH models and the corresponding statistical inferences,and it also gives modelling and statistical analysis methods for returns series. Chap-ter 4 uses the models in Chapter 2 to analyzes the daily returns for Shanghai complex index and Shenzhen complex index in the Shanghai and Shenzhen stock markets. Chapter 5 applies the models in Chapter 3 to the volatility analysis of the two stock indices returns.

论文总共五章:第一章是引言部分;第二章系统介绍了极值理论方法和收益率厚尾的建模方法,给出了平均剩余函数法和de Haan矩估计相结合的方法确定合理的超越门限;第三章详细论述了非线性时间序列模型GARCH类模型及其统计推断,并且给出了收益率时间序列波动的建模和统计分析方法;第四章利用第二章的模型对国内沪深两市大盘指数上证综指和深证综指日收益率数据分布的厚尾进行了实证分析;第五章将第三章的模型应用到两个股指日收益率时间序列的波动分析。

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推荐网络例句

Means the parent directory, so this command means to execute "toolchain.sh," which is in the current directory.

代表父目录,所以这个命令就是执行当前目录下的"toolchain.sh"。

Yes,In fact,I'm on our city ream.

是的。事实上我是我们市队的。

The strong ionospheric disturbances caused by the significant magnetic storm appeared on the whole world.

用欧亚大陆地面电离层垂测站资料考察1989年3月12~16日磁暴期间的电离层暴形态及其发展变化。