Nowadays, China's foreign trade can not be compared with what it was before. As the foreign trade business has developed rapidly, a great deal of qualified talents on economy and trades are needed. These kinds of ...Nowadays, China's foreign trade can not be compared with what it was before. As the foreign trade business has developed rapidly, a great deal of qualified talents on economy and trades are needed. These kinds of talents are supposed to master academic knowledge of economy and trade as well as the related business knowledge. Moreover, they should have excellent competences of expressing themselves orally in foreign language. English is the popular language that is used in international communication. All English majors in Liuzhou City Vocational College (LCVC) are majoring in Business English. According to some research, one of the weakest abilities of business major is spoken English. Hence, it becomes an important task for teachers to enhance students' spoken English competence on business. This article is talking about this teaching condition and to make some analyzes and put forward some reform suggestions based on the investigation.展开更多
Orthogonal matrices have become a vital means for coding and signal processing owing to their unique distributional properties.Although orthogonal matrices based on amplitude or phase combinations have been extensivel...Orthogonal matrices have become a vital means for coding and signal processing owing to their unique distributional properties.Although orthogonal matrices based on amplitude or phase combinations have been extensively explored,the orthogonal matrix of polarization combinations(OMPC)is a novel,relatively unexplored concept.Herein,we propose a method for constructing OMPCs of any dimension encompassing 4n(where n is 1,2,4,8,…)mutually orthogonal 2ncomponent polarization combinations.In the field of holography,the integration of polarization multiplexing techniques with polarization-sensitive materials is expected to emerge as a groundbreaking approach for multichannel hologram multiplexing,offering considerable enhancements in data storage capacity and security.A multidimensional OMPC enables the realization of multichannel multiplexing and dynamical modulation of information in polarization holographic recording.Despite consolidating all information into a single position within the material,we effectively avoided extraneous crosstalk during the reconstruction process.Our results show that achieving four distinct holographic images individually and simultaneously depends on the polarization combination represented by the incident wave.This discovery opens up a new avenue for achieving highly holographic information storage and dynamically displayed information,harnessing the potential of OMPC to expand the heretofore limited dimensionality of orthogonal polarization.展开更多
文摘Nowadays, China's foreign trade can not be compared with what it was before. As the foreign trade business has developed rapidly, a great deal of qualified talents on economy and trades are needed. These kinds of talents are supposed to master academic knowledge of economy and trade as well as the related business knowledge. Moreover, they should have excellent competences of expressing themselves orally in foreign language. English is the popular language that is used in international communication. All English majors in Liuzhou City Vocational College (LCVC) are majoring in Business English. According to some research, one of the weakest abilities of business major is spoken English. Hence, it becomes an important task for teachers to enhance students' spoken English competence on business. This article is talking about this teaching condition and to make some analyzes and put forward some reform suggestions based on the investigation.
基金financial supports from National Key Research and Development Program of China(2018YFA0701800)Fujian Province Major Science and Technology Program(2020HZ01012)+1 种基金National Natural Science Foundation of China(NSFC)(U22A2080)China Scholarship Council(202109107007).
文摘Orthogonal matrices have become a vital means for coding and signal processing owing to their unique distributional properties.Although orthogonal matrices based on amplitude or phase combinations have been extensively explored,the orthogonal matrix of polarization combinations(OMPC)is a novel,relatively unexplored concept.Herein,we propose a method for constructing OMPCs of any dimension encompassing 4n(where n is 1,2,4,8,…)mutually orthogonal 2ncomponent polarization combinations.In the field of holography,the integration of polarization multiplexing techniques with polarization-sensitive materials is expected to emerge as a groundbreaking approach for multichannel hologram multiplexing,offering considerable enhancements in data storage capacity and security.A multidimensional OMPC enables the realization of multichannel multiplexing and dynamical modulation of information in polarization holographic recording.Despite consolidating all information into a single position within the material,we effectively avoided extraneous crosstalk during the reconstruction process.Our results show that achieving four distinct holographic images individually and simultaneously depends on the polarization combination represented by the incident wave.This discovery opens up a new avenue for achieving highly holographic information storage and dynamically displayed information,harnessing the potential of OMPC to expand the heretofore limited dimensionality of orthogonal polarization.
