助手标题  
全文文献 工具书 数字 学术定义 翻译助手 学术趋势 更多
查询帮助
意见反馈
   正演计算 在 地质学 分类中 的翻译结果: 查询用时:0.048秒
图标索引 在分类学科中查询
所有学科
地质学
地球物理学
矿业工程
物理学
数学
无线电电子学
建筑科学与工程
更多类别查询

图标索引 历史查询
 

正演计算
相关语句
  forward calculation
    APPLICATION AND IMPROVEMENT OF FINITE-ELEMENT METHOD IN FORWARD CALCULATION OF GEO-ELECTROMAGNETIC FIELD
    有限元法在大地电磁场正演计算中的应用及改进
短句来源
    3D RESISTIVITY FORWARD CALCULATION ACCELERATEDBY ICCG ITERATION TECHNIQUE
    利用ICCG迭代技术加快电阻率三维正演计算
短句来源
    First of all, the relief of the first layer must be known, andthen the field value of the first field interface is gained by forward calculation.
    该方法是在知道第一层界面起伏情况下,通过正演计算出第一场界面的场值,然后再由总场值减去正演的第一层场值,最后反演下一层界面。
短句来源
    Seismic wavelet is an important parameter sequence for both the forward calculation and the inversion of seismic records.
    无论是在地震记录的正演计算或反演过程中,地震子波都是一个十分重要的参数序列,如果子波不准,则正演结果就不精确,与实际地震资料也难以吻合;
短句来源
    FORWARD CALCULATION AND ANALYSIS OFELECTRICAL SOUNDING CURVES OF THREEINCLINED LAYERS
    三层倾斜层的电测深曲线正演计算与解析
短句来源
更多       
  forward computation
    Forward computation of high order derivative of gravity anomaly relating to complex geologic body
    复杂形体重力异常高阶导数的正演计算
短句来源
    USE OF FORWARD COMPUTATION IN CONSTRUCTION OF BALANCED CROSS SECTION
    平衡剖面的正演计算及其应用
短句来源
    The forward computation of 2D geoelectric models are done on the Universe-68 micro-computer.
    针对实际计算中存在的困难,采取了一些必要措施,并在宇宙68微机上实现了二维模型的正演计算
短句来源
    It is of interest for interpreting the thin-bedded AVO anomaly to calculate the equation of reflection coefficient in the solid multilayered medium as derived in the paper and based on which to write the reflection forward computation program.
    文中推导的固体多层介质情况下计算反射系数的公式及据此编制的反射波正演计算程序对于薄层AVO异常的解释是有意义的。
短句来源
    In forward computation for seismic waves, subsurface media arc usually assumed to be completely clastic or acoustic.
    在地震波正演计算中,常假设地下介质是各向同性的理想弹性介质或声学介质,而实际介质通常是各向异性和非完全弹性的。
短句来源
更多       
  direct calculation
    Considering the influence of the topography, the authors analyzed in detail the geoelectric section model and made CSAMT two-dimensional inversion for the direct calculation data of the model. The result is basically consistent with the shape of the direct model. The electric section obtained can satisfactorily reflect the underground geological structure and accord with the geological data.
    复杂地形严重地影响可控源音频大地电磁测深(CSAMT)的解释结果,为此,笔者考虑了地形的影响,将地电断面模型经过精细剖分,对模型正演计算的数据进行CSAMT二维反演,得出的结果与正演模型的形态基本一致,获得的电性断面能很好地反映地下地质结构,与实际地质资料相吻合,证实了该方法的正确性和有效性。
短句来源
    It takes advantage of the reverse projection technique of seismic wave and electromagnetic wave, and applies the reverse projection of resistivity combined with the utilization of routine algorithm (conductive center method for direct calculation and nonlinear least squares method for inverse revision)so as to carry out the reconstriction of two-dimensional resistivity image.
    介绍了电阻率成像的几种供收方式,借鉴地震波和电磁波的反投影技术,应用电阻率反投影并联合使用常规算法,即导电α中心法作正演计算、非线性最小二乘法作反演修改,从而进行二维电阻率的图像重建。
短句来源
  “正演计算”译为未确定词的双语例句
    BOUNDARY ELEMENT METHOD FOR FORWARD SOLUTION OF TWO DIMENSIONAL FREQUENCY ELECTROMAGNETIC SOUNDING
    二维频率测深边界单元法正演计算
短句来源
    Taking the magnetic dipole as an example,this paper analyzed the characteristics of the time-lapse magnetic field,presented the method of inversion for it,and obtained a good effect when the theoretical model was utilized to simulate.
    本文以运动磁偶极子为例,研究了时移磁场的正反演问题,正演计算了一个运动磁偶极子在不同情况下的时移磁场,分析了时移磁场的特点,提出了对时移磁场的反演方法,并用理论模型进行了数值模拟,取得了良好的效果。
短句来源
    The Normal Deduction Calculation and its PrelimnaryExplanation of the Transient Sounding Resistivity Curve
    瞬变测深视电阻率曲线的正演计算及其初步解释
短句来源
    Forward finite differential calculation for 3-D transient electromagnetic field.
    3D瞬变电磁场的有限差分正演计算
短句来源
    Lanczos's iteration glgorithm in 3-D forward calculations of resistivity
    三维电阻率正演计算中的Lanczos迭代算法
短句来源
更多       
查询“正演计算”译词为用户自定义的双语例句

    我想查看译文中含有:的双语例句
例句
为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法,我们为您准备了出自英文原文的大量英语例句,供您参考。
  forward calculation
A 3-D FDTD method with perfectly matched layer (PML) absorbing boundary condition (ABC) is selected for the forward calculation of the scattered field by the buried object.
      
Although the relation between theINTRA-LORE and the wave function is simple, a straight forward calculation is not possible.
      
Preliminary result of 3-D gravitational forward calculation study in Bohai Sea
      
To that end the forward calculation is restarted from suitably placed checkpoints leading to a more or less complicated reversal schedule.
      
In the forward calculation, estimates of the unknown material parameters are used to get tentative predictions of the measurements.
      
更多          
  forward computation
Block diagram implementation of the time-recursive algorithm is described, computational complexity with respect to increasing block size is compared with straight forward computation, and the proper time-recursive block size is suggested.
      
This approach avoids forward computation on the complex geometry of irregular grids.
      
A forward computation algorithm continuously computes dynamic slices as statements are executed.
      
As far as we know, no experimental data has been published for forward computation algorithm.
      
As mentioned above, the forward computation algorithms maintain the latest dynamic slice for each variable/location.
      
更多          
  direct calculation
Together with traditional maximization of the Lundberg characteristic coefficient R is considered the problem of direct calculation of insurer's ruin probability ?r (x) as an initial-capital function x under the prescribed level of net-retention r.
      
With the use of dispersion forces as an example, it is demonstrated by direct calculation that a correction to the Gibbs formula for the variations of surface tension can be substantial for nanoparticles that approach molecular sizes.
      
A high-speed precision digital phase meter with direct calculation of the signal phase
      
The AD mutation rate was estimated by direct calculation.
      
The method is based on direct calculation of the dynamics of photosynthate accumulation and absorption rates of nitrogen compounds in the plant root system.
      
更多          


In this paper a finite element method for solving direct problem of magnetic exploration is proposed. Here the assumption of homogeneous magnetization is no longer required.In recent years, the problem of inhomogeneous magnetization is usually solved by iterative methods. These methods obtained good results for simple magnetic bodies. But. when the forms of the bodies become more complicated, the calculation time increases rapidly, and the accuracy and stability decreases. The finite element method is based...

In this paper a finite element method for solving direct problem of magnetic exploration is proposed. Here the assumption of homogeneous magnetization is no longer required.In recent years, the problem of inhomogeneous magnetization is usually solved by iterative methods. These methods obtained good results for simple magnetic bodies. But. when the forms of the bodies become more complicated, the calculation time increases rapidly, and the accuracy and stability decreases. The finite element method is based on va-riational principle to minimize an energy function. The method can be applied to investigate the effects of various complicated factors, and to calculate the effective magnetization and magnetic anomalies of inhomogeneously magnetized bodies.

本文提出用有限元法解磁法勘探的正问题,不再需要引入均匀磁化假定。 传统的正演计算方法是在均匀磁化的假定下建立的,它不能适应解释复杂磁异常的需要。近几年来,国外学者提出了用迭代方法作非均匀磁化条件下的正演计算,对形状比较简单的磁性体取得了较好的效果。但随着磁性体的形状变得比较复杂,计算所需时间很快增加,精度和稳定性也明显降低。以求能量函数极小的变分原理为依据,用有限元法作非均匀磁化条件下的正演计算,得到的磁位势函数满足磁性体内外的偏微分方程和全部界面条件(文中对此作了证明)。因此,这种方法可以研究各种复杂因素的影响,宜于计算非均匀磁化磁性体的有效磁化强度和磁异常。

In the first part of this paper a finite element method for two-dimentional resistivity modelling is developed. We applied the mixed boundary condition and the LLT decomposition for solution of the equation system and designed a optimization programme-The results of computation show that the programme is better in temrs of the velocity and the accuracy of computation than L. Rijo's programme.In the second part of the paper an approximate method for solving the integral equation of three-dimentional resistivity...

In the first part of this paper a finite element method for two-dimentional resistivity modelling is developed. We applied the mixed boundary condition and the LLT decomposition for solution of the equation system and designed a optimization programme-The results of computation show that the programme is better in temrs of the velocity and the accuracy of computation than L. Rijo's programme.In the second part of the paper an approximate method for solving the integral equation of three-dimentional resistivity modelling is discussed. The iterative method for calculating the integral equation is applied. The results of computation show that this algorithm is faster than the algorithm proposed by K. Dieter et al.

本文前一部分叙述了点源二维电阻率法数值模拟正演计算的有限单元法,文中采用混合边界条件、用LL~T分解解线性方程组等优化措施,使二维有限单元法电阻率法正演计算的速度和精度都比目前国外流行的L.Rijo方法和程序有了进一步的提高。文中介绍了有关的方法并引入了若干计算结果。本文后一部分叙述了三维电阻率法数值模拟的积分方程近似解法,由于对K.Dieter等人提出的方法作了一些近似处理,并用迭代法求解积分方程表示式,实算结果说明在保证计算精度的条件下,提高了计算速度,从而提高了三维电场正演计算的有效性和实用性。所提出的方法容易推广到激发极化法的正演计算中。

An interactive linear inverse method for gravity anomaly is suggested. The subsurface space is divided into squares with equal size. For a surveyed gravity anomaly, the combination of some squares is taken as the initial model. Some other squares are used as the equivalent sources. The difference between the surveyed anomaly and the calculated anomaly for the initial model is used to establish simultaneous linear equations. By solving these simultaneous equations, we get the density values of the equivalent...

An interactive linear inverse method for gravity anomaly is suggested. The subsurface space is divided into squares with equal size. For a surveyed gravity anomaly, the combination of some squares is taken as the initial model. Some other squares are used as the equivalent sources. The difference between the surveyed anomaly and the calculated anomaly for the initial model is used to establish simultaneous linear equations. By solving these simultaneous equations, we get the density values of the equivalent sources. Then the initial model is updated by the interpreter. A new set of equivalent sources is arranged. The iteration is carried on until the calculated anomaly is approaching to the surveyed one satisfactorily.

本文提出了一种人机结合的线性反演方法。将下半空间划分为许多大小相等的方格。对于一个实测的重力异常,先用若干方格的组合作为初始模型。在其周围布置另一些方格作为等效源。根据实测异常初始模型的正演计算异常之差建立线性矛盾方程组。解此方程组可求得等效源的密度值。然后由解释人员修改初始模型。再布置一套新的等效源。迭代步骤持续进行,直到实测异常与计算异常满意地符合为止。

 
<< 更多相关文摘    
图标索引 相关查询

 


 
CNKI小工具
在英文学术搜索中查有关正演计算的内容
在知识搜索中查有关正演计算的内容
在数字搜索中查有关正演计算的内容
在概念知识元中查有关正演计算的内容
在学术趋势中查有关正演计算的内容
 
 

CNKI主页设CNKI翻译助手为主页 | 收藏CNKI翻译助手 | 广告服务 | 英文学术搜索
版权图标  2008 CNKI-中国知网
京ICP证040431号 互联网出版许可证 新出网证(京)字008号
北京市公安局海淀分局 备案号:110 1081725
版权图标 2008中国知网(cnki) 中国学术期刊(光盘版)电子杂志社