地震波

We present a traveltime computation method suitable for rugged topography and irregular interfaces.

以FMM为基础，提出了一种在复杂地质条件下计算起伏地表起伏界面地震波走时计算方法。

In order to solve this problem, an improved algorithm is presented in the paper. Results from model data show that the method can diminish traveltime error in near surface model with great difference in slowness and describe accurately seismic sliding along the interface of the velocity layers.

提出了一种改进的地震波走时计算的逆风差分算法，通过考虑首波和散射波的走时，能有效地减小速度值差异较大的近地表地质模型的走时计算误差，准确地描述速度界面上折射波的滑行描述，特别适用于近地表层析成像及地震勘探中的静校正问题。

Having analysed the localization of several typical methods for traveltime computation(finite difference method,linear interpolation method and so on) in briefly,authors put forward a method for traveltime computation based on nonlinear interpolation ,and deduced its calculation formula.

在简要分析目前最典型的几种地震波旅行时计算方法(如有限差分法、线性插值法等)局限性的基础上，提出了一种基于非线性插值的地震波旅行时计算方法，并推导了其计算公式。

Reservoir parameters include porosity, permeability, fluid type, etc., but seismic data only reflects on seismic traveltime, amplitude information, and elastic parameters which can be obtained through seismic inversion.

储层参数包括孔隙度、渗透率、流体类型等，而地震资料提供的是地震波旅行时和振幅信息，再通过反演可得到弹性参数。

But even strict control according to above method,the phenomena of the elastic and unelastic motive response results compare greatly even differ several times under some earthquke input which response spectra is similar will still come forth.

但即使严格按照前述方法控制，仍然可能出现在几条反应谱相近的地震波作用下，各模拟弹塑性动力反应结果之间的差异较大，甚至相差几倍以上的现象。

In this method the random variables that mainly affect the response characteristics of offshore piles were selected and sampled. The result of this simulation is good and it shows that the neural network method can be helpful to the controlling of warf pile's designation.

在此基础上提出了地震作用下码头桩-土相互作用的神经网络控振方法，分析了地震作用下的海洋港湾码头桩-土结构，同时，考虑场地土的不确定性和地震作用的随机性（地震烈度、地震作用方向、不同地震波）、结构-桩-土相互作用等因素的影响。

This paper, with calculation of dynamic range and the study of the characteristics o f seismic wave propagation, has analyzed the reason of insufficient use of dynam ic range of conventional and 24-bit remote seismometers.

从动态范围的计算出发，结合地震波的自身特点，分析了常规数字地震仪和24位遥测地震仪的动态范围没有得到充分利用的原因。

Anatomizing anisotropy information contained in the seismic wave can provide useful information about the earth's structure, deformation, dynamic processing and mantle convection.

地震波各向异性包含着地球内部的构造变形、动力学过程等方面的信息，对了解岩石圈演化、壳幔耦合以及探测地幔对流等有重要作用。

Besides various interferences, the wave front diffusion, the ground absorption and the attenuation are all the causes of a weak seismic reflection and, plus the complicated superficial geologic setting and the reservoir bed features of low amplitude, low porosity and low permeability of the compacted thin detrital rock in HJQ, the conventional seismic amplitude fidelities do not meet the criteria of the seismic inversion.

除各种干扰外，地震波传播过程中的波前扩散、大地吸收、衰减等使地震反射能量变弱，加之杭锦旗地区复杂的表层地质条件和低幅、低孔、低渗致密性薄层碎屑岩的储层特点，使常规保幅地震资料离地震反演的要求还有差距，并且反演技术本身不具备噪音识别功能，包含噪音的反演必然会影响地质效果。

In this article, we analyze the relationship between the wavelet width and the reflection angle, the reflector dip,the velocity, by the calculation of the attenuation Sinc wavelet.

本文通过对衰减Sinc子波的实际计算，分析了地震波速度、反射角和地层倾角分别与子波宽度的关系。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。