The key of calculating fractal dimension and lyapunov exponents is to establish a good phase space . moreover , catastrophe parameter is an important feature of nonlinear time series . methods of calculating fractal dimension , lyapunov exponents and catastrophe parameter from seismic trace are exhausted 4 、 lyapunov指数混沌控制波阻抗反演的优化方法：从地震信号中反演出地下多层介质的波阻抗，以此判断介质和含流体性质，是地球物理的难点和重点。
This paper gained correlation conclusion about linear inversion pass through large numbers of test calculates , put emphasis upon the discussion of run parameters " acquired value extent about this algorithm is applied to wave impedance , gained the reference acquired value extent of run parameters 通过大量的试算，给出了线性反演的相关结论，重点讨论了采用本文编制的遗传算法用于波阻抗反演的运行参数的取值范围，并由试算结果给出了运行参数的参考取值范围。
First , basing on carefully post - processing and correcting seismic data , inverse the wave impendance and physical parameters of reservoir , making the researches of seismic attributes are made , then , the relationship between seismic attributes and oil - gas parameter are used to make regression analysis and calculating physical character parameter of reservoirs and oil - gas . basing on avo attributes analysis of known well , the correlation of avo attributes and oil - gas can be applicated in whole area 首先对地震资料进行精细叠后处理及统一校正，在此基础上进行波阻抗反演、物性参数反演、地震属性的研究，并利用油气参数与地震属性之间的关系进行回归分析，计算油气及储层的物性参数；从已知井处的avo属性处理及分析入手，研究avo与油气的关系并应用于整个研究区；计算出剖面的吸收系数并研究其与储层分布和油气之间的关系。
Flier - plate with graded wave impedance , which can be regarded as a new type of functionally graded material since its wave impedance changes quasi - continuously along the thickness " direction and thus has quasi - isentropic compressive characteristics , has come to show great potential for the application in dynamic high - pressure technique 波阻抗梯度飞片作为一类新型的功能梯度材料，因其波阻抗值沿厚度方向呈准连续变化，而具有准等熵压缩特性，可以看作是功能梯度材料在动高压物理研究领域中的应用新拓展。
Abstract : from the equilibrium and continuity conditions of wave impedance boundary of stress wave and velocity , wave , the paper derives the expressions of reflection coefficient and transmission coefficient of stress wave and velocity wave , further , discusses the characteristics of f - v curves at different impedance ratio , and analyzes the application of these characteristics to ascertain the defects of pile and soil resistance distribution around pile by practical engineering examples 文摘:该文从力波及速度波在波阻抗界面的平衡及连续条件，推导了力波、速度波的反射系数、透射系数表达式，进而讨论在不同阻抗比时的f ? v曲线特征，并引用几个工程实例对应用这些特征判定桩身缺陷及桩周土的阻力分布进行了分析。
The numerical simulations of loading processes of flier - plates show that the loading history of the flier - plate designed with wave impedance as design parameter is significantly different from that of the flier - plate designed with density as design parameter and the former is expected to have better quasi - isentropic characteristic , which indicates that it is very essential to use wave impedance as design parameter directly to design the wave impedance distribution of flier - plate 而以波阻抗作为设计参数，所得飞片的击靶波形随时间的变化更加平缓，有望获得更好的准等熵压缩性能。因此，直接采用波阻抗作设计参数，实现梯度飞片波阻抗分布的精确设计是非常必要的。
Used regulations method calculating , analyzing and comparing the lightning protection performance with field data for the line firstly , . then put forward more reasonable model ( distributing parameter model ) to calculate the surge impedance of tower combining the existing model and validate by emtp , furthermore studied the striking distance factor based on electromagnetism 首先利用规程法对线路的耐雷性能进行计算、分析，并与现场数据比较；同时结合目前对杆塔波阻抗的研究方法，提出一种更合理的杆塔波阻抗计算模型?杆塔分布参数模型，并利用emtp进行仿真计算和验证。
At the same time , the thickness of target should also be in accord with the impact velocity . experiments of quasi - isentropic loading to 93 w alloys by 93w - ofc - tc4 - a1 - mbz system flier - plate with graded wave impedance were performed on light gas guns . the corrected visar - measured wave profiles were profiles with an initial velocity jump followed by a stepwise - rising front to the peak velocity amplitude , indicating that quasi - isentropic compression energy waves had been successfully generated 在轻气炮上利用研制的93w - ofc一tc4 . ai一mbz系波阻抗梯度飞片实现了对93w合金(靶材料)的准等嫡压缩，经修正后的测试波形都是由一个较弱的初始速度跳跃和一段呈阶梯状缓慢上升的波阵面前沿所组成的准等嫡压缩波。
J22 well area geology condition is superior , forward modeling , earthquake attribute analysis , seismic phase analysis , wave impedance inversion are applying to the qualitative analysis and the rational description to the sand three center 3 granulated substance groups reservoir on the basis of the achievement of utilizing geology , well logging and mud logging combined with fine structure research , advantageous belt of the development of lithologic trap has been pointed out and the very good effect of detecting the position of exploration well has been obtained 摘要j22井区地质条件优越，在充分利用地质、测井、录井等成果的基础上，应用模型正演、地震属性分析、地震相分析、波阻抗反演、三维可视化等技术，对沙三中3砂组储层进行了定性分析和定量描述，结合精细构造研究，指出了构造岩性圈闭发育的有利区带，落实了勘探井位，取得了很好的效果。
