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正演
相关语句
  forward
    Forward Modelling of the Wave Equation with Higher Accuracy
    高精度波动方程正演模拟
短句来源
    A finite - difference - injection method for forward modeling of time -lapse seismic
    时移地震正演模拟的有限差分注入法
短句来源
    Fast algorithm for a kind of locally changed forward model
    一类模型局部改变的正演模拟快速算法
短句来源
    BEM Applied to the Forward Problems of Magnetotelluric Anomalies
    用边界单元法求解大地电磁异常的正演问题
短句来源
    Wave fields forward problem is to study how earthquake waves spreads during the underground media by researching the position, shape and distributing situation of the source of the earthquake.
    波场正演是指由震源的位置、形状及分布情况来探究地震波在地下介质的分布与传播情况。
短句来源
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  “正演”译为未确定词的双语例句
    BEM Applied to the Calculation of Apparent Resistivity Sounding Curves on 2—D Complicated Geoelectric Sections
    用边界单元法解复杂地电断面的电测深曲线正演问题
短句来源
    Finite Difference Modelling of Two-Dimensional Geoelectromagnetic Induction Probroms by Iterative Method
    用叠代法求解二维介质大地电磁感应的有限差分正演问题
短句来源
    The Semi-discrate Method for Solving Direct and Inverse Problem of 2-D Wave Equation
    求解二维波动方程正演反演问题的半离散方法
短句来源
    In order to find the best way to explain the data, improve their dependability reduce the cost used in searching now oil fields, it is necessary for us to study the problems on Partial differential equations concerning the earth physics.
    为了获得地震资料解释的最佳方案,提高地震资料解释的可靠程度,减少普查勘探新矿床所需的钻探成本,体现找油找矿的巨大经济效益,十分有必要对波场所满足的弹性波偏微分方程正演与反演问题进行研究。
短句来源
    the TEM field is obtained by transforing the frequency-domain electromagetic field into the time-domain result for the same geologic model and the same array and calculated by the linear digital filtering method presented by Anderson et al.
    其正演计算是将频率域中相同模型、相同装置条件下的谐变场结果转换到时间域来。 计算方法上采用了安德森等人提出的线性数字滤波法。
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  forward
The second part deals with the unsolved problem put forward by Bennett [1] by showing that there is at least one payoff which is balanced, partnered and equal gains aspiration.
      
In this paper, a new optimal design criterion-joint model and criterion optimal design criterion is put forward.
      
In this paper a generalized defaultable bond pricing formula is derived by assuming that there exists a defaultable forward rate term structure and that firms in the economy interact when default occurs.
      
Discontinuous galerkin finite element method for a forward-backward heat equation
      
A space-time finite element method, discontinuous in time but continuous in space, is studied to solve the nonlinear forward-backward heat equation.
      
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  forward method
On the basis of the above initial model, we present an effective and practical forward method, i.e., a model-matched approach to conduct forward inversion arithmetic.
      
The influence of these unavoidable effects on reconstructed data is reviewed and a straight forward method is outlined for calculating the loss of quantification of small objects owing to finite detector resolution.
      
Stepwise multiple regression analysis (forward method) was performed with 22 gait variables obtained from the free and slow gait of 35 normal controls (women without knee arthropathy).
      
A straight-forward method of optimising protein solubility for NMR
      
A relatively straight forward method of fitting Ge(Li) photopeaks with a Gaussian histogram is presented.
      
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A simple computer program used in packet computer is need for VAS interpretation at field.The program compile with BASIC language and O'NILLs filter coefficient can be used for forward calculation with the gived model(pi,hi).with the input of the observed data and the assumeed model(pi,hi),one can obtain the observed curve and calcula- ted curve in the Same dual logarithm coordinate.The assumed model can easily be modified by the comparison between the two curves. Then these two curves fit,the final model is...

A simple computer program used in packet computer is need for VAS interpretation at field.The program compile with BASIC language and O'NILLs filter coefficient can be used for forward calculation with the gived model(pi,hi).with the input of the observed data and the assumeed model(pi,hi),one can obtain the observed curve and calcula- ted curve in the Same dual logarithm coordinate.The assumed model can easily be modified by the comparison between the two curves. Then these two curves fit,the final model is obtained,hence the result of the interpretion.

在野外作电测深解释需要有一个适用于袖珍计算机的简易程序。该程序是根据 O(?)NILL 的滤波系数,利用BASIC 语言编制的。它根据给定的地层模型(pi,hi)可作正演计算。输入野外观测值以及所假设的地层模型(pi,hi)便可在同一个双对数座标中绘出观测曲线和计算的曲线。对比两条曲线,可以很容易地修改地层模型,直到两条曲线相似为止。那么,所对应的最终摸型就是解释的结果。

The 2-dimentional wave equation was replaced by the couple of first order in time system of equations in time-space domain. Function ey was adopted to be approximated by an exponential converging series. The formula was derived, by which the wave field was continued in the direction of time. The accurate time section of forward modelling could be thus obtained.

在时间-空间域中将二维波动方程化为常微分方程组,利用快速收敛级数逼近函数e ̄y,由此导出顺时间递推公式并得到精确的正演模拟时间剖面。

The forward calculation method for the underground transient electromagnetic (TEM) field generated by a large loop on the ground is presented in this paper. For the foward problem. the TEM field is obtained by transforing the frequency-domain electromagetic field into the time-domain result for the same geologic model and the same array and calculated by the linear digital filtering method presented by Anderson et al.. and the computing speed is improved by the utilization of cubic spline interpolation method....

The forward calculation method for the underground transient electromagnetic (TEM) field generated by a large loop on the ground is presented in this paper. For the foward problem. the TEM field is obtained by transforing the frequency-domain electromagetic field into the time-domain result for the same geologic model and the same array and calculated by the linear digital filtering method presented by Anderson et al.. and the computing speed is improved by the utilization of cubic spline interpolation method.

本文讨论了地面大回线源在地下形成瞬变电磁场的正演计算方法。其正演计算是将频率域中相同模型、相同装置条件下的谐变场结果转换到时间域来。计算方法上采用了安德森等人提出的线性数字滤波法。计算过程中采用了三次样条函数插值法,提高了计算速度。通过均匀半无限空间解析解与数值解的计算结果比较表明,两者吻合很好,说明计算方法是可信的。

 
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