电磁场

Using a method for storing the large-scale sparse matrix with varying band width, Cholesky decomposition, Green function and normalized least square fitting inversion, the paper improved the computing accuracy and efficiency in imaging calculation.

利用有限元方法实现了井间电磁成像，为了求取散射电磁场的积分方程组，运用了处理大型对称变带宽方程组的 Cholesky 分解法，反演时使用了格林函数和最小二乘法，既提高了反演速度又提高了反演质量。

In part, this dysfunction of the immune system can be attributed to chronic stress from EMFs.

这部分功能的免疫系统可以归因于慢性应激从电磁场。

Simulations based on finite integration method are carried out in a wide frequency range for a balanced feeding finite wide-angle biconical antenna and many results including input impedance and far fields are obtained.

利用基于有限积分法的电磁场仿真技术对平衡馈电的有限长宽角双锥天线作了计算，得到了天线在很宽频带内输入阻抗、远区辐射场与频率的关系曲线。

Since the highly accurate RF field was significant to the image reconstruction of parallel data acquisition and surface coil array design, Biot-Savart Law was applied to calculate the magnetic field of surface coil. Then the sensitivity of the RF receiver coil was presented by Biot-Savart Law and Ansoft HFSS respectively.

论文用Biot-Savart定律计算了表面线圈的场；并分别用Biot-Savart定律和高频电磁场仿真软件Ansoft HFSS给出了表面线圈灵敏度函数的分布，讨论了高频效应对线圈灵敏度函数的影响。

In this paper, we discuss the open-region boundary conditions based on Finite Element Method.

本文以有限元方法为基础，以开域边界条件为核心，对电磁场开域问题中的有限元算法做详细描述。

A finite element method with boundary element method is presented for computing electromagnetic induction.

提出了用有限元－边界元法计算三维电磁场感应问题。

A new kind of numerical method, the boundary point method , is used to calculate the magnetic field.

第五章将新型计算方法——边界点方法引入电磁场的计算。

The calculation formulas of the boundary point method were deduced, based on the magnetic field.

从描述电磁场的偏微分方程出发，推导出相应的边界积分方程；通过对边界积分方程的离散，建立特解矩阵，进而推导出稀土永磁齿轮传动磁场的边界点方法计算公式。

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The viscous torque can be calculated by a simple method and the frictional torque can be obtained by experiments. The torque dependent on the magnetic field is obtained by electromagnetic finite element analysis.

由动力粘度产生的力矩可以通过简单的方法进行计算，由摩擦产生的力矩可以通过实验测得，而由磁场产生的力矩则要通过电磁场的有限元分析得到。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。