电磁波

Some novel methods are studied in this paper. Firstly, the author studies DGFs in chiral medium avoid us ingwave field decomposition and eigenfunction expansion methods.

一些文献探讨了旋波媒质中电磁场矢量及其DGF的形式，这些文献从各自角度探讨了旋波媒质中依赖于电磁波场本征问题的DGF形式，但都存在局限性。

The mathematical formulas are used to determine the shape and placement of each piece to deflect the electromagnetic waves.

研究者运用数学公式来决定每块单片的外形和位置，从而偏移电磁波的方向。

Based on the theory of medium polarization, the dielectric properties of the mixture of oil and water researched, it is found that the best frequency for measuring dielectric constant of the oil-water mixture ranges between 10〓—— 10〓Hz considering medium polarization, EM wave modes, circuit simplification and so on.

本文的主要研究内容和研究成果如下：(1)根据介质极化理论，通过对油水混合介质的介电特性的研究，结合介质极化、电磁波的模式以及简化实现电路等因素，提出了测量油水混合介质介电常数的最佳工作频率在10〓～10〓Hz之间。

Circuit principles, analogue circuit, digit circuit which laid me a solid foundation of circuit for the study of communication; the study of electronic circuit of communication provided me with the working principles of analog communication system; the study on communication theory made me grasp the working methods of digital communication; the study on electromagnetic field, electromagnetic wave and aerial let me know that how signals travel through signal paths and how to apply signal and linear system, random signal and system to the research of noise's impact on signals

学习了电路原理、模拟电路、数字电路打下了学习通信的电路基础；学习了通信电子线路掌握了模拟通信系统的工作原理；学习了通信原理掌握了数字通信的工作方法；学习了电磁场与电磁波、微波与天线了解了信号如何在信道中传输；学习了信号与线性系统和随机信号与系统来研究噪声对信号的影响。

To take control of the propagation direction over the electromagnetic wave, or even over the propagation direction of wave, including light-wave, is a promising research target.

控制电磁波的传播方向，甚至控制包括光波在内的波的传播方向，是一个充满前景的研究目标。

An electromagnetic wave consists of fluctuating electric and magnetic fields, perpendicular to each other and to the direction of propagation, as described in detail in front.

一列电磁波由一系列频率的电场和磁场，它们相互垂直并垂直于波的传播方向，这在前面已详细做过说明，按照惯例，偏振方向就是电场的速度方向，而不是磁场。

Content question: there is no space in the universe, we observed with space is matter and field components space, the expansion of space is substances and substances in the expansion of the field, all moving substances and substances will be in a field-the-field sport, including light and electromagnetic waves, like automobile from the disconnexion in the same way, there is no absolute vacuum of space, there is no absolute coordinate system, all substances campaign has been relative motion.

内容题要：宇宙是没有空间的，我们观测的空间是物质和场物质组成的空间，空间的扩大也是物质和场物质在扩大，所有运动的物质和场物质都会在一个场上运动，其中包括光和电磁波，好象汽车离不开路一样，不存在绝对真空的空间，也没有绝对坐标系，所有物质运动都是相对运动。

Therefore,taking the disjunctive proposition as the prerequisite can attain the new by inferring from the known.

物理学在实际测出电磁波往返于月地间的时间之前，早就确定这个命题"若A则B"为

The disjunctive proposition has two aspects of independence of two important cornerstones for logic inference.

需用到下述充分条件假言命题：若电磁波往返于月地间的时间为x秒A(x，则月地距离为x/2×30万公里B

On this basis, we further analyze the situation of backward wave in anisotropic metamaterials with different dispersion relations, and the angle between wave vector and Poynting vector, and the general conclusion of backward wave propagation are obtained.

在此基础上，进一步分析了几种不同色散曲线关系的各向异性超常材料中倒退波的产生情况，获得了电磁波波矢和坡印亭矢量夹角的具体表达式和倒退波传播的一般性结论。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新