Introduction of Huygens Achievements in Qing Dynasty;
惠更斯的科学成就在中国清代的传播
Huygens just took advantage of analogy to establish optics wave doctrine.
惠更斯充分利用了类比法的创造性作用提出了光的波动学说 ,但惠更斯在将声与光进行类比时有其成功的一面 ,同时也具有其失误的一面 。
The formulation and simulation of the refraction of e beam within the principal cross section of a uniaxial crystal in accordance with the Huygen's principle and by MATLAB,respectively.
应用惠更斯原理可推导主截面内折射角公式和阵面角公式,这是分析和演示双折射现象的基础;应用MATLAB的立体作图和动画功能,能够简单、直观地阐明双折射的规律。
The article incorporates Huygens principle with existing fire behavior models of surface fire spread,crown fire spread,fire acceleration,builds forest fire simulation models which fit to Anning s terrain,and develops related dynamic modules for Yunnan Province.
利用惠更斯原理进行林火蔓延模拟,结合国际上成熟的林火行为模型(Rothermel的地表火模型,Van Wagner的树冠火蔓延模型,McAlpine的林火加速模型),建立适合云南省特殊地形的林火蔓延动态模型,并开发相应的动态模拟模块,在云南特殊地形地貌上的林火蔓延模拟做出一定探索。
In this paper,it is studied that the angular spectral method for electromagnetic wave propagation is equivalent to Huygens principle.
证明了平面电磁波传播的角谱法与惠更斯原理是完全等效的。
With the case of any orientations of optical axis in uniaxial crystal,the versatile and precise formula of the phase difference for a birefringent plate is derived by means of Huygens principle.
在单轴晶体光轴任意取向的情形下应用惠更斯原理导出了双折射滤光片产生位相差的精确公式,结合几种熟知的特殊情形进行了简要讨论,给出完全一致的相关结果,揭示该普遍公式的正确性。
Analysis of the negative refraction phenomenon in the common uniaxial crystals by using the Huygens construction;
用惠更斯作图法分析单轴晶体中的负折射现象
Evolution of paraxial field--Heggens transform;
近轴光场演化的计算——惠更斯变换