We study the evolution of spectral intensity and degree of coherence of a new class of partially coherent beams,Hermite non-uniformly correlated array beams,in free space and in turbulence,based on the extended Huygen...We study the evolution of spectral intensity and degree of coherence of a new class of partially coherent beams,Hermite non-uniformly correlated array beams,in free space and in turbulence,based on the extended Huygens–Fresnel integral.Such beams possess controllable rectangular grid distributions due to multi-self-focusing propagation property.Furthermore,it is demonstrated that adjusting the initial beam parameters,mode order,shift parameters,array parameters and correlation width plays a role in resisting intensity and degree of coherence degradation effects of the turbulence.展开更多
主述位理论提出,在一个句子中,信息的出发点就是主位,述位是对主位的进一步描述。根据该理论,译者可以找到Why can’t male astronauts see after spending time in space?一文中长难句的主要成分和次要成分,较好地理解科技英语中的难...主述位理论提出,在一个句子中,信息的出发点就是主位,述位是对主位的进一步描述。根据该理论,译者可以找到Why can’t male astronauts see after spending time in space?一文中长难句的主要成分和次要成分,较好地理解科技英语中的难句所传递的信息,使译文逻辑更加严谨,思路更加流畅。本文通过保留原文主位结构和重建原文主位结构的策略,针对文中出现的长难句进行了案例分析,进一步阐述了主述位理论在科技文本翻译中的重要指导作用。展开更多
基金the National Key Research and Development Program of China(Grant No.2019YFA0705000)the National Natural Science Foundation of China(Grant Nos.91750201,11525418,11947240,11974218,12004218,and 11904087)+1 种基金the Local Science and Technology Development Project of the Central Government(Grant No.YDZX20203700001766)Innovation Group of Jinan(Grant No.2018GXRC010)。
文摘We study the evolution of spectral intensity and degree of coherence of a new class of partially coherent beams,Hermite non-uniformly correlated array beams,in free space and in turbulence,based on the extended Huygens–Fresnel integral.Such beams possess controllable rectangular grid distributions due to multi-self-focusing propagation property.Furthermore,it is demonstrated that adjusting the initial beam parameters,mode order,shift parameters,array parameters and correlation width plays a role in resisting intensity and degree of coherence degradation effects of the turbulence.
文摘主述位理论提出,在一个句子中,信息的出发点就是主位,述位是对主位的进一步描述。根据该理论,译者可以找到Why can’t male astronauts see after spending time in space?一文中长难句的主要成分和次要成分,较好地理解科技英语中的难句所传递的信息,使译文逻辑更加严谨,思路更加流畅。本文通过保留原文主位结构和重建原文主位结构的策略,针对文中出现的长难句进行了案例分析,进一步阐述了主述位理论在科技文本翻译中的重要指导作用。
