查询词典 wave equation

Besides the previous research finding, the ideal gas equation and ideal gas, fluid dynamics and thermal dynamics were also included in the derivation of the equation of state of the detonation Wave.

目前国内可量测爆震波速度的仪器并不普遍，因此爆震波速度值得之不易，想利用爆震波速度来探讨爆破震动的特性更是难上加难，本文将依据理想气体方程式、流体动力学、热力学、理想气体多变定律和相关的经验公式，结合冲击波和爆震波传递时质量、能量和动量守恒的理论，推导爆震波的状态方程式，并藉由爆震波的状态方程式了解爆震波的特性及其应用。

It also make students grasp building method and analyzing method of some important mathematical model (such as wave equation,Laplace equation).

使学生熟悉一些重要的电磁场问题的数学模型（如波动方程、拉氏方程等）的建立过程以及分析方法。

In this paper, we constructed the new conservative schemes of regularized long wave equation according to the physical laws of this equation.

在本文中，我们基于RLW方程本身具有的物理律，构造RLW方程的新的守恒型差分格式。

With a unitary transformation, the Schrodinger equation becomes the standard mathieu equation, then the energy spectrum and the wave functions of the system are obtained.

用幺正变换将薛定谔方程变换为标准的马丢方程，通过对薛定谔方程的求解，得到了系统的能级和波函数。

Dinger equation becomes a standard Mathieu equation, and then the basal quantum character such as energy spectrum and wave functions of the system are obtained.

该系统的差分薛定谔方程在电流的表象中可以变为马丢方程的形式，从而系统最基本的量子性质——能级、本征态和电流的量子涨落可以在WKBJ近似下完成。

In order to study the effects of parametrical rolling on the ship movement and tilts, in allusion to ship's navigating in regular following waves, the equation of ship rolling motion is transformed into normal Mathieu equation by proper variable replacement when strong parametrical excitation in restoring moment varied according to sine or cosine wave.

为研究参数横摇对船舶运动和倾覆的影响，通过对船在规则波上随浪航行时，恢复力矩中出现的1个以正余弦规律变化的强参数激励项进行适当的变量置换，将船舶的横摇运动方程转换成标准形式的Mathieu方程。

Since the governing equations for atmosphere movement can be reduced to a convective equation, so, to verify the validity of SFEBS, the propagation of one dimensional wave packet and shock governed by convective equation are simulated and compared with the boundary scheme that is based on the idea of Taylor series expansion.

因为大气运动的控制方程简化后可以归结为一个对流方程，所以作为边界格式之间的比较和检验，在一维情况下用对流方程和数值模拟中具有代表性的波包和激波作为算例，将其与传统的基于Taylor展开思想构造的边界条件进行了比较。

The standard parabolic equation method was obtained by the decompocition of the scalar wave equation and the expansion of the pseudo-differential operator.

通过对传统波动方程的分解和伪微分算子的近似展开，获得了标准抛物线方程。

Based on the two phase anisotropic model this paper analyses and presents the dynamic equations of elastic wave propagation, the Galerkin variational equation, and the finite element equation in two phase anisotropic media.

基于双相各向异性介质模型，首先推导了双相各向异性介质中弹性波传播的动力学方程及其Galerkin变分方程和有限元运动方程，然后给出了孔隙弹性波方程的有限元数值解法以及二维双相PTL介质中波场模拟的人为吸收边界条件。

Based on the wave equation in the acoustic fluid space and the theory of thin-wall structure, the uncoupling error in low frequency range about the nonsymmetrical coupled structure-acoustic analysis equation is studied.

该对称模型特征值的非负性及特征问题的可降阶性也在本文中进行了深入研究，同时指出了在复模态分析中应当注意的问题；（2）由声空间波动方程和薄板理论出发，对非对称声振耦合方程的低频解耦误差问题进行了研究。

Aquatic or marsh-growing fern allies; known to have existed since the Cenozoic; sometimes included in Lycopodiales.

生活于水中或湿地的蕨类；从新生代生存至今；有时归于石松目之中。

The engine was uprated from a 90hp Franklin to a 125hp Lycoming.

改良过的引擎是从90hp到125hp莱康明富兰克林。