The effects of phenyl content and group distribution on the refractive index of phenyl silicone oil were investigated by synthesis and characterization of silicone oils of different molecular structures.A group contri...The effects of phenyl content and group distribution on the refractive index of phenyl silicone oil were investigated by synthesis and characterization of silicone oils of different molecular structures.A group contribution function model was established to predict the refractive index. The results showed that refractive index of phenyl silicone oil increased as its phenyl content increased. A linear equation had been established to describe the quantitative relationship between the refractive index and phenyl content.Refractive index values from the group contribution function model showed good consistency with experimental results.展开更多
OBE(Outcome Based Education,成果导向教育)理念是工程教育认证的核心思想,已得到工程教育界的广泛认可与推广。其中,毕业要求指标体系与课程体系的对应关系是该理念落实的关键环节。但目前的构建思路是基于课程层面的,忽视课程体系的...OBE(Outcome Based Education,成果导向教育)理念是工程教育认证的核心思想,已得到工程教育界的广泛认可与推广。其中,毕业要求指标体系与课程体系的对应关系是该理念落实的关键环节。但目前的构建思路是基于课程层面的,忽视课程体系的功能模块结构(或课程群)特点,与指标体系对应课程选择存在较大的随机性、主观性问题。该文以广州大学环境工程专业为例,从尊重课程体系的功能模块化结构特点出发,探讨毕业要求指标体系与课程群的对应关系,具有逻辑结构清晰与操作简便、高效的优点。展开更多
基金National Natural Science Foundation of China(No.11304048)Special Fund Project for Technology Development of Guangdong Province,China(No.2016B070701023)Funds of Applied Science and Technology Research in Guangdong Province,China(Nos.2017A070701024,2017A070702020)
文摘The effects of phenyl content and group distribution on the refractive index of phenyl silicone oil were investigated by synthesis and characterization of silicone oils of different molecular structures.A group contribution function model was established to predict the refractive index. The results showed that refractive index of phenyl silicone oil increased as its phenyl content increased. A linear equation had been established to describe the quantitative relationship between the refractive index and phenyl content.Refractive index values from the group contribution function model showed good consistency with experimental results.
文摘OBE(Outcome Based Education,成果导向教育)理念是工程教育认证的核心思想,已得到工程教育界的广泛认可与推广。其中,毕业要求指标体系与课程体系的对应关系是该理念落实的关键环节。但目前的构建思路是基于课程层面的,忽视课程体系的功能模块结构(或课程群)特点,与指标体系对应课程选择存在较大的随机性、主观性问题。该文以广州大学环境工程专业为例,从尊重课程体系的功能模块化结构特点出发,探讨毕业要求指标体系与课程群的对应关系,具有逻辑结构清晰与操作简便、高效的优点。