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异常电位     
相关语句
  anomalous potential
     THE TOPOGRAPHIC CORRECTION OF THE ELECTRIC SOUNDING DATA BY THE BOUNDARY ELEMENT METHOD FOR ANOMALOUS POTENTIAL
     用异常电位边界单元法做电测深资料地形改正
短句来源
     In this paper,we completed the forward calculation of arbitrary shape line source with finite-difference method to anomalous potential's differential equation.
     本文针对任意形状线电流源,从异常电位所满足的微分方程出发,利用有限差分方法实现了任意形状线电流源三维地电场正演.
短句来源
     THE FINITE ELEMENT METHOD FOR SOLVING ANOMALOUS POTENTIAL FOR RESISTIVITY SURVEYS
     电阻率法中求解异常电位的有限单元法
短句来源
     1. Author detailedly deduced the calculation process of 3-D resistivity forward with finite element method when adopting tetrahedron element griddings, gave two calculation methods, anomalous potential method and total potential method, then discussed in the programming of 3-D resistivity finite element forward.
     1 详细推导了采用四面体单元时,有限元法求解三维电阻率正演问题的计算过程,分别给出了异常电位法和总电位法两种方法。
短句来源
     The topographic correction of the electric sounding data by the boundary element method for anomalous potential is discussed,and the significance effect is obtained.
     求解异常电位的边界单元法对电测深资料进行地形改正,应用效果明显。
短句来源
  abnormal potential
     Changes of Abnormal Potential During Cardioversion of Persistent Atrial Fibrillation by Cibenzoline in Goats
     Ic类抗心律失常药Cibenzoline转复山羊持续性心房颤动过程中心房异常电位的变化
短句来源
     C 5~6 was the predilection site of protrusion disc,and the incidence rate of abnormal potential was the highest in all sites.
     C5 ~6 椎间盘突出为好发部位,其肌电图异常电位发生率也最高。
短句来源
     33 patients presented abnormal potential in deep layer muscle of neck,28 patients presented denervate potential. The positive rate was 82.3%.
     颈部深层肌异常电位33 例,其中失神经电位28 例,阳性率8 23 % 。
短句来源
     Conclusions:The occurrence of abnormal potential was closely related with seriousness of clinical symptoms. The coincidence rate of denervate potential and hand/arm/shoulder numbness was 82.3%;
     结论:异常电位的出现与临床症状的轻重有紧密的关系,失神经电位与手/ 臂/ 肩麻木的符合率为823 % ;
短句来源
     Abnormal potential temporal lobe than that of parietal lobe were easly recorded with Cz reference elec- trode.
     Cz 参考电极干扰少有利于颞部的异常电位的暴露,但不利于头顶部病变的发现。
短句来源
  anomaly potential
     The method assumes that the arbitrary shape may be approximated by a series of plane surface which are perpendicular to one of the three major orthogonal axes. Therefore anomaly potential is produced practically from the charges which accumulate on the surface of model. The charge density distribution function can be determined by the boundary conditions at the surface of the model.
     该方法假定:任意形体均可以用一系列和座标轴相垂直的平面来代替,因此,异常电位实际上是由模型表面的积累电荷所引起,而电荷密度分布函数可以用模型表面的边界条件来确定。
短句来源
  secondary potential
     It is very convenient to be applied to the solution of the secondary potential, achieving much higher accuracy while the calculation is keeping fast.
     该算法可方便地应用于求三维异常电位 ,在保持快速计算的基础上 ,正演计算的精度显著提高 .
短句来源

 

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      anomalous potential
    An approximate formula to obtain the anomalous potential from the Bouguer anomaly is discussed.
          
    Eastward-propagating patterns in anomalous potential temperature and salinity of the Southern Ocean are analyzed in the output of a 1000-year simulation of the global coupled atmosphere-ocean GCM ECHO-G.
          
    Studies of anomalous potential drops due to ion density inhomogeneities
          
    The behavior of the anomalous potential spectrum is analyzed.
          
    Multiscale modelling of the Earth's anomalous potential from EGM96-model data is illustrated by use of bandlimited harmonic wavelets, i.e.
          
      abnormal potential
    Sites with single abnormal poten tials and longer intervals from the PP to this abnormal potential were marked with blue tags.
          
    Sites with multiple abnormal potentials and shorter intervals from the PP to the first abnormal potential were marked with pink tags.
          
      secondary potential
    HCl conformation and strong indication for the existence of a secondary potential minimum at the collinear Kr ...
          
    In both cases direct gravitational attraction of the mass variations and the secondary potential caused by the deformation of the lithosphere are sensed by a gravity mission.
          
    Plant nutrient deficiencies of P and Mg are secondary potential problems that may result from the use of coal combustion byproducts.
          


    This paper discusses the surface integral approach to the solution of 3D geoelectrical model in the D.C.electrical filed.The method assumes that the arbitrary shape may be approximated by a series of plane surface which are perpendicular to one of the three major orthogonal axes.Therefore anomaly potential is produced practically from the charges which accumulate on the surface of model.The charge density distribution function can be determined by the boundary conditions at the surface of the model.Thus anomaly...

    This paper discusses the surface integral approach to the solution of 3D geoelectrical model in the D.C.electrical filed.The method assumes that the arbitrary shape may be approximated by a series of plane surface which are perpendicular to one of the three major orthogonal axes.Therefore anomaly potential is produced practically from the charges which accumulate on the surface of model.The charge density distribution function can be determined by the boundary conditions at the surface of the model.Thus anomaly field may be calculated by means of accumulational charge. This paper relates theprinciple of the method.Give some results of calculation.Finally discuss some questions that are connected with calculational accuracy.

    本文讨论了直流电场中三维地电模型数值求解的面积分法。该方法假定:任意形体均可以用一系列和座标轴相垂直的平面来代替,因此,异常电位实际上是由模型表面的积累电荷所引起,而电荷密度分布函数可以用模型表面的边界条件来确定。这样,异常场便可借助于积累电荷来计算。本文讨论了方法的基本原理,给出了一些计算结果,最后,讨论了与计算精度有关的一些问题。

    Expressions were developed for the surface charge density of primary and secondary polarization fields and the total field on the surface of a volume-polarized medium. Surface charge densities at the interface of a multi-layered medium in a point-source field and on the surface of polarized spherical and cylindrical bodies in a uniform field have been calculated, theoretical curves characterizing the distribution of surface charges were also obtained. Using the results, the field-density in primary and secondary...

    Expressions were developed for the surface charge density of primary and secondary polarization fields and the total field on the surface of a volume-polarized medium. Surface charge densities at the interface of a multi-layered medium in a point-source field and on the surface of polarized spherical and cylindrical bodies in a uniform field have been calculated, theoretical curves characterizing the distribution of surface charges were also obtained. Using the results, the field-density in primary and secondary polarization fields and the distribution of potential anomalies can easily lie assessed.

    本文以等效电阻率法为理论基础,导出了几种常见情况下,体极化介质表面上一次电流场和二次极化电流场以及总电流场的面电荷密度的表达公式,并分别对点电流源场中多层介质分界面上的面电荷密度及在均匀电流场中球状和水平圆柱状极化体表面上的面电荷密度进行了具体计算,得到了某些表征电荷分布规律的理论曲线。利用本文中给出的研究结果,可以简便地对一次电流场和二次极化电流场的异常电位及异常电流强度的分布特征,进行定性分析和定量研究。

    The finite element method for solving anomalous potential for resistivity surveys is presented in this paper. The anomalous potential plus the normal potential equals to the total potential. The accuracy of the total potential obtained by this method is much higher than that of the total potential immediately obtained by the finite element method.

    本文给出求解电阻率法的异常电位的有限单元法.将异常电位与正常电位相加,得总电位.用这种方法得到的总电位比直接求总电位的精度高很多.

     
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