波动方程

Secondly, it is proved that the solution space of second-order wave equations can form the reproducing kernel Hilbert space H 1 0,+∞.

其次，证明了二阶波动方程的解空间构成再生核空间H 1 0，+∞。

This paper deals with the problem of nonlinear inversion of the SH wave equation in a homogeneous isotropic elastic half space with both transmitters and receivers in the bore hole.

讨论了均匀各向同性弹性半空间SH波动方程的非线性反演问题。

It adopts the variable step length scheme to evaluate at the connection point, and adopts the implicit difference scheme to evaluate in the same rod.

3运用在均质处采用隐式差分格式、节点处采用变步长的有限差分的混合方法求解抽油杆柱的波动方程。

A phase_space marching algorithm of wave propagation is proposed in the general frame case, based on the wave equation for inhomogeneous media.

本文从非均匀介质中波动方程出发，提出了基于一般标架的相空间波传播的步进算法。

This paper studies the existence of solution for a semilinear wave equation under the nonlinear term and initial value satisfying certain conditions.

本文研究了半线性波动方程在非线性项和初值满足一定条件下解的存在性。

This paper deals with the initial boundary value problem of a class of strongly damped wave equationsWhere,Ω?

本文研究以下强阻尼非线性波动方程的初边值问题其中Ω？

By solving the frequency equation,the relationship between initial stress and phase velocity is obtained.

通过求解考虑初应力时的耦合波动方程，得到了管道壁中应力波传播时相速度和初应力的关系，并进行了实例计算。

To complex the earth's surface with written software the real data of the area undertook trying calculating, processing makes clear as a result, with " phase shift - when move law " has fluctuant equation datum plane corrective can eliminate well rise and fall the influence that the earth's surface and logarithm of complex and upper structure occupy, for speed analysis and inphase overlay lay good foundation.

用编写的软件对复杂地表区的实际资料进行了试算，处理结果表明，用"相移-时移法"进行波动方程基准面校正能很好地消除起伏地表和复杂地表结构对数据的影响，为速度分析和同相叠加奠定良好的基础。

An integral expression for the time domain output response of traveling wave electrooptic phase modulator is derived by using the scalar wave equation and Fourier transform technique.

从标量波动方程出发，采用傅里叶变换的方法，导出了行波电光相位调制器的时间域输出响应的计算公式。

The phase anomaly zones are investigated on the basis of the integral theorem of Helmholtz and Kirchhoff in terms of the Kirchhoff′s boundary conditions and the physical meaning of the integral for the diverging and converging spherical waves.

从波动方程出发，在基尔霍夫边界条件下，根据积分的物理意义，简明地研究了发散和汇聚球面波的相奇异区域分布。结果表明，除了汇聚的球面波焦点区域存在相奇异现象外，焦点以外的区域及对发散的球面波同样存在相奇异现象。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。