偶极子

By reason of the dipole directivity of particle velocity sensor and also the acoustic intensity averagor, and its being able to realize the electronic rotation, coherent interferences can be effectively suppressed by skillful use of its zero point and extremal point.

振速传感器和平均声强器具有偶极子指向性，并且该指向性可实现电子旋转。巧妙利用偶极子指向性的零点和极值点，可有效地抑制声场中的相干干扰。

Goldberger AL, Bhargava V, West BJ, et al. On the mechanism of cardiac electrical stability: the fractal hypothesis, Biophys J.

按心电产生的瞬时空间电偶极子理论，各种导联的体表心电图信号是由瞬时空间电偶极子在各导联轴上的投影形成的。

The distribution of the electromagnetic field of an uniformly moving electric dipole is calculated by analyzing the electromagnetic potential of the electric dipole and making use of the covariability of electromagnetic field in different inertial frame under the theory of relativity.

本文通过对电偶极子电磁势的分析和相对论下电磁场在不同惯性系中的协变分布，计算了作匀速直线运动的电偶极子的电场和磁场的空间分布

Aha logogriphs elicited a more negative ERP deflection than did No-aha logogriphs in the time window within 1500-2000 ms (N1500-2000) and 2000-2500 ms (N2000-2500) after onset of the logogriph. Maps of the difference wave (P200-600) showed strong activity in the midline parieto-occipital scalp. Dipole analysis localized the generator of P200-600 in the left superior temporal gyrus and near parietotemporo-occipital cortex areas.

差异波的地形图表明，P200-400在中后部活动最为明显，偶极子溯源分析的结果显示，P200-400可能主要起源于左侧颞上回以及顶枕联合区附近；LNC1与LNC2均在左侧前额部有明显的激活，偶极子溯源分析的结果显示，LNC1可能起源于ACC附近，而随后的LNC2可能主要起源于PCC。

The duct and the wake of duct is also discreted by a number of small hyperboloidal quadrilateral panels. Constant source and doublet are distributed on duct while there are only doublet on wake of duct.

以面元的几何形心为控制点，在每个物面面元上布置等强度的源汇分布和偶极子分布，每个尾涡面面元上布置等强度的偶极子分布。

When the magnitudes and directions of the electric and magnetic dipoles were matched, the radiation in backward and sideward direction was obviously restrained.

当TEM喇叭天线与低频补偿回路形成电偶极子和磁偶极子满足匹配条件时，天线低频辐射的单向性将得到提高。

This paper applies the hybrid genetic algorithm and the adaptive genetic algorithm to simulate to the single and twin dipoles model.

文章分别采用了改进的自适应遗传算法和混合遗传算法，分别对单偶极子和双偶极子模型进行仿真。

This reflects the asymmetric polarization of defect dipoles and coupling interaction of defect dipoles with domain walls.

这些有趣的发现反应了缺陷偶极子的非对称性取向极化和酬壁与缺陷偶极子的耦合作用。

The electric current and potential distribution produced by dipoles in human brain was simulated by the finite element method.

讨论用有限元法计算电流源偶极子产生的电流与电位分布，推导出计算偶极子源在各向异性导电媒质中的有限元方程，并对其进行变形，使得在各向异性导电媒质中生成的有限元刚度阵对称。

The superior properties of antenna arrays composed of unequal dipoles are discovered and the method to modify the length of each element is described.

研究了由不等长的偶极子组成的天线阵的优越性，提出了调节偶极子的长度以达到设计目的的方法。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐