SPOC翻转课堂作为数字化教育转型的创新模式,在增强《分析化学》教学质量方面展现出较大潜力。文章深入剖析了传统教学模式的局限性,并结合SPOC与翻转课堂的特点,系统阐述了SPOC翻转课堂的构建框架、实施流程及效果评估体系。实践证明,...SPOC翻转课堂作为数字化教育转型的创新模式,在增强《分析化学》教学质量方面展现出较大潜力。文章深入剖析了传统教学模式的局限性,并结合SPOC与翻转课堂的特点,系统阐述了SPOC翻转课堂的构建框架、实施流程及效果评估体系。实践证明,该模式在激发学生学习积极性、培养自主学习能力以及激发创新思维方面优势明显,为《分析化学》的教学改革提供了有益借鉴。The SPOC flipped classroom, as an innovative model of digital education transformation, has shown great potential in enhancing the teaching quality of Analytical Chemistry. The article deeply analyzes the limitations of traditional teaching models and systematically elaborates on the construction framework, implementation process, and effectiveness evaluation system of the SPOC flipped classroom, combining the characteristics of SPOC and flipped classroom. Practice has proven that this model has obvious advantages in stimulating students’ enthusiasm for learning, cultivating independent learning ability, and stimulating innovative thinking, providing a beneficial reference for the teaching reform of Analytical Chemistry.展开更多
利用电荷自洽离散变分Xα(SCC-D V-Xα)方法计算了钒基固溶体中钒氢反应前后钒及其氢化物(V H x,x=0,1,2)、假定原子簇模型V H 鄢x(x=1,2)和V H x'(x=0,1)的电子结构.结果表明:钒与氢气反应生成V H 时,化学效应和结构效应都使V 3d和...利用电荷自洽离散变分Xα(SCC-D V-Xα)方法计算了钒基固溶体中钒氢反应前后钒及其氢化物(V H x,x=0,1,2)、假定原子簇模型V H 鄢x(x=1,2)和V H x'(x=0,1)的电子结构.结果表明:钒与氢气反应生成V H 时,化学效应和结构效应都使V 3d和H 1s轨道向低能量方向移动,氢化物V H 中V 3d和H 1s轨道重叠最多,V -H 之间的相互作用较强。V H 再与氢气反应生成V H 2时,结构效应使V 3d和H 1s轨道都向高能量方向移动,氢化物V H 2中V 3d和H 1s轨道重叠最少,V 和H 之间的相互作用较弱。氢化物V H 和V H 2中不仅存在离子性相互作用,而且还存在共价性相互作用.结构效应导致V H 2中V -H 键的共价性减弱,从而导致V H 2中V 和H 之间的相互作用减弱。氢化物V H 的费米能级比V H 2的低,说明V H 更稳定.展开更多
文摘SPOC翻转课堂作为数字化教育转型的创新模式,在增强《分析化学》教学质量方面展现出较大潜力。文章深入剖析了传统教学模式的局限性,并结合SPOC与翻转课堂的特点,系统阐述了SPOC翻转课堂的构建框架、实施流程及效果评估体系。实践证明,该模式在激发学生学习积极性、培养自主学习能力以及激发创新思维方面优势明显,为《分析化学》的教学改革提供了有益借鉴。The SPOC flipped classroom, as an innovative model of digital education transformation, has shown great potential in enhancing the teaching quality of Analytical Chemistry. The article deeply analyzes the limitations of traditional teaching models and systematically elaborates on the construction framework, implementation process, and effectiveness evaluation system of the SPOC flipped classroom, combining the characteristics of SPOC and flipped classroom. Practice has proven that this model has obvious advantages in stimulating students’ enthusiasm for learning, cultivating independent learning ability, and stimulating innovative thinking, providing a beneficial reference for the teaching reform of Analytical Chemistry.
文摘利用电荷自洽离散变分Xα(SCC-D V-Xα)方法计算了钒基固溶体中钒氢反应前后钒及其氢化物(V H x,x=0,1,2)、假定原子簇模型V H 鄢x(x=1,2)和V H x'(x=0,1)的电子结构.结果表明:钒与氢气反应生成V H 时,化学效应和结构效应都使V 3d和H 1s轨道向低能量方向移动,氢化物V H 中V 3d和H 1s轨道重叠最多,V -H 之间的相互作用较强。V H 再与氢气反应生成V H 2时,结构效应使V 3d和H 1s轨道都向高能量方向移动,氢化物V H 2中V 3d和H 1s轨道重叠最少,V 和H 之间的相互作用较弱。氢化物V H 和V H 2中不仅存在离子性相互作用,而且还存在共价性相互作用.结构效应导致V H 2中V -H 键的共价性减弱,从而导致V H 2中V 和H 之间的相互作用减弱。氢化物V H 的费米能级比V H 2的低,说明V H 更稳定.
