查询词典 electromagnetic

Since the multiple scattering should be considered, the scattering problem of many-cylinders is more complicated than single cylinder. By using scattering matrix method to solve the scattering problem of many-cylinders, first we have to express the incident fieldand scattered field by special function（for example, Bessel function and Hankel function）under cylindrical coordinate, then use the addition theorem of special function to get a linear system of equations to relate the incident field coefficients and scattered field coefficients. The incident and scattered field coefficients for every cylinder can be solved from the linear equations by matching electromagnetic boundary condition pointwisely.

单颗圆柱散射体的散射场解析解很早就被解出，而多个圆柱阵列的散射场问题因为涉及到入射光在圆柱与圆柱间的多重散射，故散射行为较单颗圆柱的散射复杂，因此圆柱阵列的多重散射问题需要利用加法定理来处理；散射矩阵法的主要精神即是先用圆柱座标下的特殊函数对平面波和圆柱散射体的内外域电磁场做无穷级数展开，再藉由特殊函数的加法定理将所有圆柱散射体的展开中心移到同一个展开中心，最后可以得到一组连结整个散射系统的入射电磁场系数及散射电磁场系数的线性方程组，将该组线性方程配合电磁场在散射体边界的连续条件，便可分别求出圆柱阵列中各个圆柱体的内部电磁场与外部散射场，再利用线性叠加原理即可求得整个圆柱系统的全域电磁场分布。

Defect Mode and Mode of Electromagnetic Wave in Cylindrical Doping Photonic Crystal.

刘启能。圆柱形掺杂光子晶体中电磁波的模式和缺陷模。

Numerical results of single solid/core-shell and two cylindrical nanorods under plane electromagnetic wave with resonance frequency are presented.

本研究主要探讨不同细长比之单、双颗实心或核-壳细杆形金奈米粒子於电、磁场中受到平面波或电偶极波源时，散射体的表面电浆子现象。

The response of the electromagnetic wave resistivity MWD tool in cylindrically symmetrical 2D formation is simulated by the algorithm.

利用该算法对随钻电磁波电阻率测量仪器在轴对称二维地层中的响应进行数值模拟。

The far-field analytical expressions for the electromagnetic fields of a cylindrically polarized vector beam propagating in free space are obtained based on the vector angular spectrum and the method of stationary phase.

基于矢量角光谱法与静态位相方法，推导出了矢量圆柱偏振光束在自由空间传输的电磁场的远场解析表达式。

The good agreement of experimental results with the simulated values shows that D'Alembert's method coupled with the finite-difference time-domain method could be used to study and accurately analyze the pulse circuit from the electromagnetic viewpoint.

仿真和实验结果良好的一致性证明了达朗伯公式行波法结合时域有限差分法可以从电磁场角度研究并精确分析脉冲产生电路。

Specially made ceramics electrode daylight lamp of nanometer ,It is the electric light source patent technique produce that one kind of electrode launch electromagnetic wave that the ceramics stuff by means of the permanence was make was kindled phosphor powder .

纳米特制陶瓷电极荧光灯，是一种通过永久性的陶瓷材料制成的电极发射电磁波点燃荧光灯的电光源专利技术产品。纳米特制陶瓷电极荧光灯技术，改变了传统荧光灯的技术原理，材质和构造，纳米陶瓷电极荧光灯的使用寿命是白炽灯的30倍。

And it analyses the effect of decibel in the EMC test and electromagnetic design.

分析了分贝在电焊机电磁兼容测试和电磁兼容设计方面作用。

Domain Decomposition Method for Electromagnetic Field Boundary Value Problem .

电磁波时域有限差分方法，第二版。

An electromagnetic radiation effect evaluation method is presented in this paper. The effect is ranked by the weighted average of the coupled electric field with domain decomposition and subdomain sensitive factors.

提出了一种电磁辐射效应评估的方法：通过区域分解并且引入子域敏感因子，采用电场强度的加权平均作为EMR效应评估的参考指标。

This paper designs the communication system of radio telescope FAST.

针对500m口径球面射电望远镜FAST分布式控制系统的特点完成了其通信系统的设计。

Political sheep's step-by-step a large number of fossils unearthed in the county soil Ma Ali after rural village in the middle of sallow pelitic siltstone.

步氏和政羊化石大量出土于广河县阿力麻土乡后山村，产于灰黄色泥质粉砂岩中。