The ＂sergeants and soldiers rule＂ occurring in helical copolymer emulsions derived from an achiral monomer （M1） and a chiral monomer （M2） was observed. TEM, GPC, and 1H-NMR techniques in combination demonstrate ...The ＂sergeants and soldiers rule＂ occurring in helical copolymer emulsions derived from an achiral monomer （M1） and a chiral monomer （M2） was observed. TEM, GPC, and 1H-NMR techniques in combination demonstrate the formation of nanoparticles constituted by the copolymers. CD and UV-Vis spectra show the （co）polymer chains in the nanoparticles adopt helical structures of a predominant helicity, and the copolymers follow the ＂sergeants and soldiers rule＂ in forming helical structure.展开更多
Aiming at solving the problems of outdated mode and single method of English teaching for sergeant students,as well as the separation of learning and applying in traditional English classes,this paper proposes a blend...Aiming at solving the problems of outdated mode and single method of English teaching for sergeant students,as well as the separation of learning and applying in traditional English classes,this paper proposes a blended teaching mode guided by the production-oriented approach,carries out feasibility analysis,designs teaching activities according to the output-driven hypothesis,and tests the effectiveness of this teaching mode in Sergeant English class through practice.It has proved that this teaching mode can effectively stimulate students’motivation and interest in learning English,improve their English output and enhance their learning confidence,and significantly improve the teaching effectiveness.展开更多
基金supported by the National Natural Science Foundation of China (Nos. 21174010, 20974007)the Fundamental Research Funds for the Central Universities (ZZ1117)
文摘The ＂sergeants and soldiers rule＂ occurring in helical copolymer emulsions derived from an achiral monomer （M1） and a chiral monomer （M2） was observed. TEM, GPC, and 1H-NMR techniques in combination demonstrate the formation of nanoparticles constituted by the copolymers. CD and UV-Vis spectra show the （co）polymer chains in the nanoparticles adopt helical structures of a predominant helicity, and the copolymers follow the ＂sergeants and soldiers rule＂ in forming helical structure.
文摘Aiming at solving the problems of outdated mode and single method of English teaching for sergeant students,as well as the separation of learning and applying in traditional English classes,this paper proposes a blended teaching mode guided by the production-oriented approach,carries out feasibility analysis,designs teaching activities according to the output-driven hypothesis,and tests the effectiveness of this teaching mode in Sergeant English class through practice.It has proved that this teaching mode can effectively stimulate students’motivation and interest in learning English,improve their English output and enhance their learning confidence,and significantly improve the teaching effectiveness.
