相速度

另外，还用粒子模拟方法，研究了激光对热等离子体受激向后喇曼散射产生低相速度的等离子体静电波对低能电子加速的问题，探讨了多级或多波加速的可能性。

We have also studied the problem of ES wave with low phase velocity generated by laser plasma Raman scattering to accelerate non-relativistic electrons by using particle simulation methods , and possibility of multistage , or multiwave , acceleration is explored as well .

用改进双延迟线法测量SAW相速度

Determination of SAW Phase Velocity by Improved Dual-delay-line Method

成层介质中Love波相速度频散曲线计算的比较

Comparison of dispersive curve of Love wave propagating in horizontally elastic soil layers

德国南部地区Love波相速度分布

Love wave phase velocity map in southern Germany

在瑞雷波相速度的计算方面以往主要采用常规的Fourier变换。

Traditional Fourier transform is usually chosen to get the phase velocity of Rayleigh waves .

偏压电场对压电板中Lamb波相速度的影响

Effect of Biasing Electric Fields on Phase Velocity of Lamb Waves in Piezoelectric Plate

导出方程和边界条件后，借助于REDUCE解析语言（symbolicComputation），求得了毛细重力波的摄动级数解以及相速度、波形等有关物理量。

Relying on Reduce language for symbolic computation , we find perturbation solution and corresponding physical variables such as wave shape , phase velocity etc.

就相速度而言，在垂直方向附近，SV波的速度变化要比P波明显得多；

In the horizontal direction , the phase velocity of SV wave changes more obviously than that of P wave .

二维TIM中的传播矩阵与面波相速度

Propagating matrix and analytical solutions to the phase velocity of surface waves in 2-D transversely isotropic media

利用VSP直达波资料反演粘弹介质的相速度及品质因子

Inversion of phase velocity and quality factor from direct waves in vertical seismic profile data

对于Lamb波的每个模式，煤粒负载模型相速度与单层模型相速度的大小关系存在一个转折点。

For every mode of Lamb waves , the magnitude of phase velocity between the two models has the turning point .

计算表明，横向各向同性介质中的P波与SV波的相速度曲线不再是各向同性介质中的圆形。

The results show that the curves of the phase velocities of P wave and SV wave in vertical transvers isotropic media are not circular shaped .

两种类型中尺度涡旋Rossby波的相速度及其物理机制

Phase speeds of two kinds of meso-scale vortex Rossby wave and their physical mechanisms

讨论了在SAW气体的传感器中把化学信号（气体浓度）转换成物理信号（SAW相速度变化）的机制以及将它们彼此分离开来的方法。

The conversion mechanisms of a chemical signal ( gas concentration ) into a physical signal ( SAW phase velocity change ) in SAW gas sensors and the way to separate them are discussed .

中国大陆及边邻地区地壳上地幔Rayleigh面波相速度结构与方位各向异性研究

Study on the Phase Velocity and Azimuthal Anisotropy from Rayleigh Surface-Wave in the Crust and Upper-Mantle Beneath the Continental China and Its Adjacent Regions

β中尺度暴雨系统发生发展的一种可能物理机制I.涡旋Rossby波的相速度

A Possible Mechanism of the Genesis and Development of Meso - β Rainstorm System Part I. Phase Velocity of Vortex Rossby Waves

对比并分析了TTI介质和TI介质模型的相速度理论计算值的X分量特征的差异。TTI介质的相速度研究具有较高的理论研究价值和实际应用价值。

In addition , the x-component character differences between the modeled phase velocities of the two media models are compared and analyzed .

基本气流在垂直方向的切变也不能导致Kel-vin波发生不稳定，只能导致Kelvin波的相速度发生Doppler频移效应。

The vertical shear in the basic flow does not lead to the instability of Kelvin wave but to Doppler frequency shifting of its phase velocity .

立体传质塔板CTST罩内气相速度分布的研究

Study on the Gas - Phase Velocity Distribution in Cover of CTST

TE表面模式或TM表面模式的时间平均坡印亭矢量与模式相速度的方向依赖于系统参数，或是相反或是相同。

Depending on the system parameters , either TE or TM surface modes have the time averaged Poynting vector directed opposite or same to the mode phase velocity .

采用可实现性kε模型和随机颗粒轨道模型，对其气固两相流动进行了数值计算，得出了气相速度分布、颗粒浓度分布和流动阻力分布特性。

The realizable k - ε model and stochastic particle track model were used for gas-solid flow simulation . The numerical results showed the gas velocity , particle concentration and flow resistance distributions of the gas inlet hood .

应用理论模型计算方法研究了具有垂直对称轴的横向各向同性介质中P波、SV波的传播规律和Thomsen参数对P波相速度的影响。

On the basis of Thomsen 's parameters , the features of P wave and SV wave , and the effects of Thomsen 's parameters on their features are studied using theoretical models and calculation method .

在短波区域，理论上求得最低区的弥散曲线分支的极限相速度为Rayleigh波的波速，而其他区的弥散曲线分支的极限相速度为剪切波的波速。

At short wavelength region , it was obtained analytically that the phase velocity in the lowest region approaches to Rayleigh wave speed that the phase velocities in other regions and approach shear wave speed .

依据三维TTI介质的相速度表达式，模拟并分析了三维TTI介质相速度图像。

The authors simulated and analyzed the phase velocity of3D TTI media , based on the expressions for3D TTI medias phase velocity .

将推导的相速度带入Christoffel方程，得到TTI介质弹性波偏振方向。

Polarization direction of elastic wave in TTI media is worked out by putting phase velocity substitute into the Christoffel equation .

计算结果表明，在长波区域，第二和第四分支的群速度小于零；在短波区域，只有第二分支的相速度趋近于Rayleigh波的波速。

Numerical results show that the group velocities of the second and fourth branches are negative at large wavelength region and only the phase velocity of the second branch approaches the Rayleigh wave speed at the short wavelength region .

研究表明，体波群速度图案和相速度图案相对TI对称轴固定，随TI对称轴倾角及其相对测线方位角的变化呈现出一定的对称性和重复性；

That is , the spatial orientation of TI symmetry axis and surveying line azimuth have an effect on body-wave velocities . The patterns of body-wave group-velocities and phase-velocities are fixed relative to TI symmetry axis and exhibit certain symmetry and repetition of azimuth variation .

以典型的PZT-5H压电陶瓷板为例进行了数值计算，并讨论了偏压电场对Lamb波相速度及频散曲线的影响。

Numerical calculators were carried out for a PZT-5H piezoelectric ceramic plate . It is shown that the biasing electric field has great effect on the phase velocity of Lamb wave .

本文从目前普遍为油气地球物理工作者所承认的Hudson本构方程出发，分析讨论了含流体、气体裂隙各向导性介质中地震波相速度和横波双折射特性。

Based on the Hudson 's constitutive equation which is universally accepted by geophysicists nowadays , the phase velocity of seismic wave and S-wave birefringence in anisotropic media containing gas or fluid filled fissures are discussed .

采用自行研制的双电极电导探针，在0.75m×0.75m×1m方形搅拌槽中，测定了玻璃珠水体系中固体颗粒对液相速度的影响。

The influence of solid particles on fluid velocity was measured in a square stirred tank ( 0.75m × 0.75m × 1m ) with glass beads-water system .