查询词典 undamped wave

The numerical model of non-linear wave in harbor, including the non-coupled and non-linear wave numerical model, the numerical model combined Boussinesq equations with Laplace equation and the coupled numerical model combined Boussinesq equations with Euler's equations, are studied.The studies on non-coupled and non-linear wave numerical model are following.

本文分别以Boussinesq方程，二维和三维Laplace方程，欧拉方程和牛顿第二定律作为基本控制方程，分别从非耦合非线性波浪计算模型(指单独采用一个计算模型：本文指Boussinesq方程，或边界元法解Laplace方程，或有限元法解Laplace方程)、Boussinesq方程与Laplace方程耦合计算模型、Boussinesq方程与欧拉方程耦合计算模型三个方面对港口非线性波浪计算模型展开了研究。

Through our studies, we concluded that the mesoscale disturbance spreading along the tangential and radial direction respectively has the characters of transverse wave and symmetric inertia-gravitational wave. Nevertheless, the mesoscale disturbance in the area of super-gradient current nearby the eye-wall of Typhoon has the features of the mixed vortex Rossby-inertia-gravitational wave.

研究认为切向和径向传播的中尺度扰动分别具有横波和对称型重力惯性波性质，但在台风眼壁附近的超梯度流区的中尺度扰动具有混合涡旋Rossby波－重力惯性波特征。

Seismic anisotropy can be studied by four basic seismic wave behaviors, e.g, direction-dependent travel time anomalies, shear-wave birefringence, surface-wave scattering, and direction-dependent conversion of compressional waves to shear waves.

目前人们利用4种基本的地震波现象研究地震各向异性，如横波双折射、面波散射、与传播方向有关的走时异常和PS转换波震相。

But the dependency of the first type compression wave and the shear wave is much smaller than that of the second type compression wave.

通过对比u-w和u-p方程的结果，首次定量说明了u-p方程适用于包含地震工程在内的大多数工程问题。

The frequency-dependent sensitivity coefficients with respect to the parameters of the radial layers are computed quantitatively. Comparing the horizontal permeability with the vertical permeability, the horizontal mobility plays the predominant role over the entire frequency range. The Stoneley wave is more sensitive to the velocity of the horizontally propagating SH wave than the flexural wave.

利用灵敏度曲线定量研究了不同频率下地层各个参数对相速度和衰减系数的贡献大小，主要结果显示模式波的衰减受水平渗透率影响明显，而垂直渗透率的变化对模式波几乎无影响；斯通利波对水平向传播的横波速度比弯曲波的灵敏度高。

A second larger wave of residential housing mortgage failures;(2) The first big wave of auto loan failures and repossessions;(3) Over $40 billion in credit card defaults, smashing the bank lenders;(4) The first wave of commercial mortgage failures and foreclosures on shopping malls, office buildings and other commercials;(5) And

超过400亿美元的信用卡违约，将打击银行贷款；（ 4 ）第一波购物商场、办公楼和其他商业地产的抵押贷款止赎权丧失；（ 5 ）最后，无保证金资金或定金的CDS交易将上演华丽的终场乐章！我们今天听到的总数是500万亿美元！我甚至不能形容这个数字。

A second larger wave of residential housing mortgage failures;(2) The first big wave of auto loan failures and repossessions;(3) Over $40 billion in credit card defaults, smashing the bank lenders;(4) The first wave of commercial mortgage failures and foreclosures on shopping malls, office buildings and other commercials;(5) And finally, the grand smashing finale of CDS Credit Default Swaps originated with No margin money or down payments!

在明年春天，我们看到：（ 1 ）第二次大浪潮住宅按揭失败；（ 2 ）第一大浪的汽车消费贷款的失败和收回；（ 3 ）超过400亿美元的信用卡违约，打破了银行贷款；（ 4 ）第一批失败和商业抵押贷款抵押品赎回权的购物商场，办公楼和其他商业广告；（ 5 ），最后，大砸最后的CD信用违约互换起源无保证金资金或订金！

There are four types of waveforms, increased sawtooth, square wave, triangle wave, sine wave.

共有四种波形，递增锯齿波，方波，三角波，正弦波。

Some one disagree our viewpoint, so at last we clarified that why this term vanishes identically when one rigorously studies the intrinsic magnetic moment of a particle, either fundamental or composite even we have chosen wave packets instead of plane wave, i.e. a superposition of physical plane-wave states, because they are strictly physical and practical.

因此我们的工作就是澄清了为什么当我们粗略研究一个粒子(不管这个粒子是基本的，还是复合的)的内禀磁矩的时候，我们是可以忽略掉这一项的，即使我们考虑波包而不是平面波，因为实际世界中我们遇到的更多是波包。

The result shows that gravity wave excited by the tropopause forcing can propagate stably to the mesosphere through the stratosphere so that the energy and momentum can be transferred from a region to another. In the propagation, gravity wave undergoes growth, overturning, convection and breaking. The breaking of gravity wave is the important source of convection and smallscale waves, and convective instability and overturn are the character of nonlinear phenomenon.

分析结果表明，从对流层顶激发的重力波能稳定地经平流层传到中层顶，从而将能量和动量从一个区域带到另一个区域；在向上传播过程中，重力波经历了发展、位温翻转、对流直至最终破碎的演变；重力波的破碎是对流和小尺度波动的重要的源，对流不稳定和翻转是非线性现象的一个基本特征。

The use of the web to spread fears that flicking the switch on the LHC could create a Black Hole that could swallow up the Earth particularly concerned him, he said.

他说，使用互联网散布恐慌说启动LHC会生成一个可能吞噬地球的黑洞的做法让他感到忧虑。

Not a single word have I written down.

我一个字也没有写下来。