偶极子

The polarization stability of the samples poled by constant voltage corona charging was investigated by means of measuring the open-circuit thermally stimulated discharge current-temperature spectrum, the electro-optical coefficient and the isothermal surface potential decay.

样品用恒压电晕充电法极化，通过测量电光效应的等温衰减监测偶极子有序取向稳定性，用开路热刺激放电、等温表面电位衰减测量等手段分析了材料的电荷动态特性。

Performance of dual-polarization SARs to distinguish three basic scattering mechanisms from an isotropic surface, a dipole, and an isotropic dihedral is studied theoretically. Performance of dual-polarization SARs to identify the eight scattering mechanisms inside the feasible region in H-αplane is analyzed, and a feasible division of H-αplane for HH-VV dual-polarization SAR is obtained in an experimental manner.

推导了双极化H-α平面有效区域的边界，从理论角度研究了双极化SAR对各向同性表面、偶极子和各向同性二面角三种基本散射的识别能力，通过实验分析了双极化SAR对H-α平面有效区域内八种基本散射机理的识别性能，并给出了HH-VV双极化H-α平面的一种可行划分方式。

Results showed that Aha logogriphs elicited a more negative ERP deflection than did No-aha logogriphs in the time window within 1400-1700 ms (LNC1), 1700-2000 ms (LNC2) and 2000-2500 ms (LNC3) after onset of the logogriph. Dipole analysis localized the generator of LNC1 in the left Gyrus frontalis superior, LNC2 in the left frontal cortex and LNC3 in the posterior cingulate cortex.

对差异波进行偶极子溯源分析，结果显示，在1400-1700 ms内该负成分(LNC1)主要起源于左侧额中回(BA 9)附近；在1700-2000ms内，该负成份(LNC2)可能主要起源于左侧额叶(BA 4)；而在随后的2000-2500ms，该负成分(LNC3)可能主要起源于PCC(BA 31)附近。

Based on single magnetic dipole model, the spatial filtering method of cardiac magnetic signal in the frequency domain was investigated.

本文利用心脏磁场单磁偶极子模型研究了心脏磁场强度检测信号的频域空间滤波法。

Authors of this paper has designed a LRC circuit as the vertical magnetic dipole source in time domain.

设计了一种LRC电路控制的瞬变垂直磁偶极子场源，该场源可通过线路中的电阻R调节其振荡频率和衰减速率，以获取高能量、穿透能力强的时域电磁波信号。

Using concept of magnetic Polaris, this paper derives read-back signal of heads, and computes influence impacted on read-back signal by adjacent bit magnetic transitions and adjacent track magnetic transitions.

采用磁偶极子概念对磁头的读出信号进行了数学推导，并计算了相邻比特磁化翻转及相邻磁道磁化翻转对读出信号的影响。

Objectives: To locate Sensory's areas of volunteers whose native language are Chinese by equivalent current dipole and synthetic aperture magnetometry of magnetoencephalography in order to reveal the language processing of Chinese.

目的：采用脑磁图（magnetoencephalography，MEG）的等价偶极子定位法（equivalent current dipole，ECD）和合成孔径磁场定位法（SAM Synthetic Aperture Magnetometry，SAM）定位母语为汉语健康自愿者的听觉性语言中枢，探讨汉字的语言加工过程。

Thirdly, in order to improve the estimation precision of the magnetic dipole parameters, the method that combined Neural Networks with Maximum Likelihood Estimation method was purposed in this paper.

进一步，为了提高磁偶极子参数的估计精度，本文提出了将极大似然参数估计与神经网络相结合的方法。

And the capabilities and limitations of this method are accessed. Then a testing system is designed to detect current of micro-ampere to milliampere level. The experimental results show that the acoustic response is proportional to the current in the tissue.

基于连续介质和电磁学理论，建立偶极子模型，为磁声耦合检测神经电流提供数学基础，得到此方法分析生物体内和体外电流的能力和限制。

Now our main products are: PTX-LCD, TEX-LCD/S, BLUES30NV serial FM exciters, TX serial 1-10KW FM transmitters, TX serial 3-20KW hot plug-in transmitters, AJ1F serial vertical polarization FM antenna, DPA serial panel FM antenna, star-point or bridge style FM multiplexor, digital STL microwave link, professional receivers and any TV related products.

公司主要产品有：PTX-LCD/S，TEX-LCD/S，BLUES系列调频激励器，TX系列1-10KW调频发射机，TX系列3-20KW热插拔数字调频发射机，AJ1F系列各种功率等级的垂直极化调频天线，DPA系列带反射板偶极子调频天线，星型，桥型系列大功率调频多工器，数字STL微波传输系统，专业调频收转机等及所有电视设备产品

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