The results show that the annual variations in time and latitude determinations in China can be partially explained with the anomalous refraction. 结果表明用反常折射可以部分地解释我国天文观测残差的周年变化。
Anomalous refraction is believed to be the main error source for classical astrometry. 反常折射已成为传统天体测量学的主要误差来源。
Anomalous propagation may be appeared, while radar electromagnetic wave propagating in the atmosphere. Especially when there is atmospheric duct in the condition of trap refraction. 雷达电磁波在大气环境中会出现异常传播现象,尤其在陷获折射条件下,形成大气波导传播。
The negative refractive material is receiving much attention recently because of its many peculiar features, especially the anomalous refraction, compared with the regular material. 负折射材料是近年来研究人员关注的新型材料,与常规材料相比,它有许多非寻常的表现,特别是光的折射。
A detailed explanation of the anomalous refraction in material with a negative refractive index using the Huygens principle is presented. The differences of the design of optical devices of the negative refractive material and that of regular material are also analyzed. 用惠更斯原理解释了负折射材料的折射规律,并分析了负折射材料制作的一些常用光学元件与传统材料制作的相应光学元件的不同作用。
The method to calculate the influence of anomalous refraction on time-latitude observations. 反常折射对时纬观测影响的计算方法。作为应用实例,本文计算了长江三角洲地区的大气光学面斜倾、反常折射及其对时纬观测的影响,并作了初步分析。
The annual variation of optical astronomical observational residuals caused by the anomalous refraction 反常折射引起的地面天文观测残差的周年变化
More importantly, it is found that in some scattering cases ( especially at relatively high energy), there exist the interesting anomalous negative reflection and refraction of the wave packets. 更重要的是在某些条件下(尤其当电子能量比较高时),发现存在电子波包的负反射和负折射等有趣的反常现象。