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parameter inversion    
相关语句
  参数反演
    PARAMETER INVERSION IN TAU-P DOMAIN
    Tau-P域参数反演
短句来源
    2-D moving grid search method for two parameter inversion of electromagnetic wave logging
    电磁波测井双参数反演的2-D移动网格搜索法
短句来源
    RESERVOIR PARAMETER INVERSION USING NEURAL FUZZY SYSTEM
    基于神经模糊系统的储层参数反演
短句来源
    An improved genetic algorithm and its application in parameter inversion in anisotropic media
    遗传算法的改进及其在各向异性介质参数反演中的应用
短句来源
    GENETIC ALGORITHM FOR PARAMETER INVERSION OF SATURATED POROUS MEDIA
    流体饱和多孔介质参数反演的遗传算法
短句来源
更多       
  参数反演
    PARAMETER INVERSION IN TAU-P DOMAIN
    Tau-P域参数反演
短句来源
    2-D moving grid search method for two parameter inversion of electromagnetic wave logging
    电磁波测井双参数反演的2-D移动网格搜索法
短句来源
    RESERVOIR PARAMETER INVERSION USING NEURAL FUZZY SYSTEM
    基于神经模糊系统的储层参数反演
短句来源
    An improved genetic algorithm and its application in parameter inversion in anisotropic media
    遗传算法的改进及其在各向异性介质参数反演中的应用
短句来源
    GENETIC ALGORITHM FOR PARAMETER INVERSION OF SATURATED POROUS MEDIA
    流体饱和多孔介质参数反演的遗传算法
短句来源
更多       
  参数反演
    PARAMETER INVERSION IN TAU-P DOMAIN
    Tau-P域参数反演
短句来源
    2-D moving grid search method for two parameter inversion of electromagnetic wave logging
    电磁波测井双参数反演的2-D移动网格搜索法
短句来源
    RESERVOIR PARAMETER INVERSION USING NEURAL FUZZY SYSTEM
    基于神经模糊系统的储层参数反演
短句来源
    An improved genetic algorithm and its application in parameter inversion in anisotropic media
    遗传算法的改进及其在各向异性介质参数反演中的应用
短句来源
    GENETIC ALGORITHM FOR PARAMETER INVERSION OF SATURATED POROUS MEDIA
    流体饱和多孔介质参数反演的遗传算法
短句来源
更多       
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  parameter inversion
Test of Source-Parameter Inversion of Intensity Data
      
The multi-parameter inversion of elastic wave equation in a half-space within the Born approximation is studied.
      
The specific procedure is to conduct a 2D interface-constrained CEMP inversion using 2D seismic and log data followed by a property parameter inversion of the anomalous bodies using gravity and seismic data by the stripping technique.
      
Then, using multi-parameter inversion and integrated multi-attribute analysis, we predict the favorable reservoir distribution quantitatively and setni-quantitatively to clarify the distribution of high-yield zones.
      
We have proposed an AVA and physical parameter inversion algorithm.
      
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In this paper, the general theory of the source parameter inversion from geodetic data is considered to be consisted of modeling of the earthquake source, the realization of optimization and the utilization of the geodetic data. Mainly the latter two are studied in detail. A rigorous method of direct inversion from the original observation data (e.g. variations in length, angle, elevation difference, tilt and strain on the earth's surface) is put forward. The modified simple method accelerates the...

In this paper, the general theory of the source parameter inversion from geodetic data is considered to be consisted of modeling of the earthquake source, the realization of optimization and the utilization of the geodetic data. Mainly the latter two are studied in detail. A rigorous method of direct inversion from the original observation data (e.g. variations in length, angle, elevation difference, tilt and strain on the earth's surface) is put forward. The modified simple method accelerates the convergence of iteration. The convergence tests are given. The normalization of observation data according to sequential approximation guarantees that data of different observations are of the same normal distribution.The source parameters of the 1976 Tangshan earthquake are inversed from geodetic data. The stability and reliability of the results are tested. The results show right lateral slip of 2.51m and vertical slip of 0.70m (southeast side down) on a fault plane which dips 90°. The strike, width and upper margin of the earthquake fault are N56°E, 112 km, 15 km and 0 km respectively. The middle point position of the fault is N39°36'.6, E118°11',4. The seismic moment, stress drop and strain drop are 1.45 ×1027 dyne, cm, 37.2 bar and 5.6 × 10-5 respectively. This result is nearly the same as that deduced from seismic waves and other geophysical data observed during the earthquake. Therefore, it is concluded that there was rare possibility that fault creep, comparable with the faulting of the main shock, could have taken place both before and after the earthquake.

本文利用大地测量资料反演地震震源参数的一般理论,归纳为震源模型的建立、最优化计算的实施和观测资料的使用等三部分.文中着重研究了后两部分:提出了利用原始观测资料(地面长度、角度、高差、倾斜、应变的变化值)直接进行反演的严密方法;改进了单纯形最优化计算方法,加速了迭代的收敛并给出了收敛准则;按逐渐趋近法进行观测资料的标准化,保证了标准化后的各类资料都属于同一正态分布.文中根据地震前、后的大地测量资料,对1976年唐山7.8级地震的震源参数进行了反演,并对成果的稳定性和可靠性进行了检验,得到地震断层长度为112公里,走向为北东56°,倾角为90°,断层破裂至地面,断层面延深(宽)15公里,水平错距(右旋)2.51米,垂直错距(东南盘下降)0.70米,断层迹线中点位置为北纬39°36'6、东经118°11'4.由此计算得到的地震矩为1.45×10~(27)”达因·厘米,应力降为37.2巴,应变降为5.6×10~(-5).这个结果与根据地震波及震时其它地球物理资料求得的结果相近,因此认为本次地震前(或后),发生相当于主震规模的断层蠕动的可能性不大.

The principle and method of source parameter inversion from coseismic tilt steps are treated. The Dimension Reduction Method is put forward. This method deals with coseismic tilt step values and their directions separately, using the step directions to determine the optimal strike, dip angle and slip angle and the step values to determine the optimal length, width and slip dislocation. Results obtained from the study of Heze earthquake (M_s=5.9)and Haiyuan earthquake(M_s=5.5) by using the Dimension Reduction...

The principle and method of source parameter inversion from coseismic tilt steps are treated. The Dimension Reduction Method is put forward. This method deals with coseismic tilt step values and their directions separately, using the step directions to determine the optimal strike, dip angle and slip angle and the step values to determine the optimal length, width and slip dislocation. Results obtained from the study of Heze earthquake (M_s=5.9)and Haiyuan earthquake(M_s=5.5) by using the Dimension Reduction Method show that it is a effective method in dealing with coseismic tilt steps. The earthquake fault of Heze earthquake has a strike of NNE, a main strike-slip with some dip-slip dislocation, and s small dip angle.The authors believe that Heze earthquake occured on the Liaokao fault belt or was controled by it.

本文探讨由同震倾斜阶跃按静态位错模式反演震源参数的原理和方法,提出了降维法,该法把同震倾斜阶跃的量值和方向分别处理,用其方向分布求解断层的走向、倾角和滑动角,用其量值求解断层长、宽和错动量。应用降维法对菏泽5.9级地震和海原5.5级地震的研究表明,该法能取得令人满意的结果。本文认为:荷泽5.9级地震震源断层是北北东向的,以走滑为主,兼有倾滑分量,倾角很小,地震看来是发生在聊考断裂带上或受其控制。

I sketch out the following points. (1)·My unified formulas for reflection and transmission of plane elastic wave. ·Dynamic difference between converted wave and unconverted wave. ·The reflection and transmission coefficients of plane elastic and converted waves incident upon an interface between different elastic media are the odd functions of ray parameter p respectively. ·The reflection and transmission coefficients of unconverted wave are the even function of ray parameter p. (2)·Some power series type formulas...

I sketch out the following points. (1)·My unified formulas for reflection and transmission of plane elastic wave. ·Dynamic difference between converted wave and unconverted wave. ·The reflection and transmission coefficients of plane elastic and converted waves incident upon an interface between different elastic media are the odd functions of ray parameter p respectively. ·The reflection and transmission coefficients of unconverted wave are the even function of ray parameter p. (2)·Some power series type formulas for reflection and transmission of plane elastic wave, which include Aki's and Shuey's formulas that are widely used nowadays. ·These new formulas have more definite physical meaning, clearer lithology property,simpler form and easier separation of variates than other's formulas. ·They broaden the application of AVO technique, favour better lithology parameter inversion and advantage separating P wave from S wave. (3)·My AVO filtering concept that copes with the problem existing in seismic horizontal stacking. ·My AVO curve filtering, which is a new processing method for obtaining amplitude fidelity,high resolution and high S/N ratio. ·It is pointed out that traditional CDP stacking concept may be forsaken in more reliable new lithology analysis, which is the development tendency of seismic exploration. The principles and applications of these new methods are illustrated at the conclusion of the article.

本文阐述了如下内容:①提出了平面弹性波反射和透射的统一公式,并阐明了转换波和非转换波动力学特征的差异。指出,“在不同弹性介质分界面上入射平面弹性波,转换波的反射系数和透射系数是射线参数p的奇函数;非转换波的反射系数和透射系数是射线参数p的偶函数”。②作为上述结论的直接应用,本文提出一组以奇偶幂级数形式表示的平面弹性波反射和透射的近似公式,包括目前广泛用于地震勘探的Aki公式和Shuey公式。与前人的公式相比,本文公式具有物理意义明确、岩性关系清晰、形式简洁和易于分离变量等优点。新的近似公式扩展了AVO分析的应用领域、易于实现更为全面的岩性参数反演,并可分离纵波和横波。③针对地震勘探中的水平叠加技术存在的问题,本文提出了AVO滤波的概念,发展了一种振幅保真、高分辨率、高信噪比的处理新方法——AVO曲线拟合滤波,并且指出更为真实的岩性分析方法必须抛弃传统的CDP叠加概念,这是地震勘探的必然趋势。文中最后以实例说明了这些新的处理方法的原理和应用。

 
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