1) group velocity method
群速度法
2) group velocity
群速度
1.
Phase velocity,group velocity,and ray parameters in transversely isotropic media;
TI介质中的相速度和群速度及射线参数
2.
Measurements of group velocity of ultrasonic guided waves and thickness of material based on Hilbert-Huang transform;
基于希尔伯特-黄变换测量超声导波的群速度及材料厚度
3.
The equivalent index of refraction defined through the complex transmission coefficient is calculated and the group velocity of an optical pulse with frequency spectrum around the defect mode frequency is investigated.
计算了由复透射系数定义的等效复折射率并由此研究了频谱位于缺陷模频率附近的光脉冲的群速度。
3) negative group velocity
负群速度
1.
Left-handed materials have many strange properties,such as negative refractive index,negative group velocity,perfect imaging,inverse Doppler effect and abnormal Cerenkov radiation.
本文介绍了左手材料的概念、原理和它具有的负群速度、负折射率、理想成像、逆Doppler频移、反常Cerenkov辐射等种种奇异的物理性质。
2.
They have many strange properties such as negative group velocity, negative refractive index, perfect imaging, inverse Doppler effect and abnormal Cerenkov radiation.
它具有诸如负群速度、负折射率、理想成像、逆Doppler频移、反常Cerenkov辐射等种种奇异的物理性质 。
3.
The paper introducs the history and research of negative refractive materials and simply analysis of negative index of refraction gives rise to the strange properties such as negative group velocity,negative refraction,perfect lens,inverse doppler effect and abnormal Cerenkov radiation.
介绍了负折射率材料的发现及研究历史,简单分析由负折射产生的负群速度、逆多普勒频移、反常切伦柯夫辐射、完美透镜等各种效应,进一步讨论负折射材料的应用展望。
4) group velocity diagram
群速度图
5) group-velocity
群速度
1.
Based on the method of coordinates transform for arbitrary spatial orientation TI media,we expanded to study the azimuth variations of body-wave phase-velocity and group-velocity for arbitrary spatial orientation TI media with arbitrary strength of anisotropy.
本文基于任意空间取向TI介质中坐标变换的方法,扩展研究了任意强弱、具有任意空间取向对称轴的TI介质中体波相速度和群速度的方位变化;通过模型数值计算,获得了相速度与群速度方位变化图案,并比较了二者偏差。
2.
Rytov proved the relation of group-velocity and energy-transportation velocity in non-absorption medium on the basis of group-velocity concept in 1947.
1 947年Rytov在波包群速度概念的基础上 ,证明了在无吸收介质中群速度与能量传播速度之间的关系。
6) group velocity
[物]群速度
补充资料：群速度
见波。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条