课程是人才培养的核心。专门用途英语(English for Special/Specific Purpose,简称ESP)课程设计的优劣直接影响ESP的教学质量。基于"工作过程"的教育理念与ESP的教学目标相吻合,以外贸商务函电与单证课程为例,通过对ESP课程...课程是人才培养的核心。专门用途英语(English for Special/Specific Purpose,简称ESP)课程设计的优劣直接影响ESP的教学质量。基于"工作过程"的教育理念与ESP的教学目标相吻合,以外贸商务函电与单证课程为例,通过对ESP课程内容进行解构、融合和重构,构建了基于"工作过程"的ESP课程设计模型及教学实践,力求帮助学习者加强"工作语言"记忆,培养其"工作技能",以期提高ESP教学质量。展开更多
The equilibrium and kinetic characteristics of the adsorption of erythromycin to Sepabeads SP825 were determined.The equilibrium data in a batch system was well described by a Langmuir isotherm.The separation performa...The equilibrium and kinetic characteristics of the adsorption of erythromycin to Sepabeads SP825 were determined.The equilibrium data in a batch system was well described by a Langmuir isotherm.The separation performance was investigated in a fixed-bed system with respect to the adsorption superficial velocity,ionic strength and pH.A mathematical model was used to simulate the mass transfer mechanism,taking film mass transfer,pore diffusion and axial dispersion into account.The model predictions were consistent with the experi-mental data and were consequently used to determine the mass transfer coefficients.展开更多
文摘课程是人才培养的核心。专门用途英语(English for Special/Specific Purpose,简称ESP)课程设计的优劣直接影响ESP的教学质量。基于"工作过程"的教育理念与ESP的教学目标相吻合,以外贸商务函电与单证课程为例,通过对ESP课程内容进行解构、融合和重构,构建了基于"工作过程"的ESP课程设计模型及教学实践,力求帮助学习者加强"工作语言"记忆,培养其"工作技能",以期提高ESP教学质量。
文摘The equilibrium and kinetic characteristics of the adsorption of erythromycin to Sepabeads SP825 were determined.The equilibrium data in a batch system was well described by a Langmuir isotherm.The separation performance was investigated in a fixed-bed system with respect to the adsorption superficial velocity,ionic strength and pH.A mathematical model was used to simulate the mass transfer mechanism,taking film mass transfer,pore diffusion and axial dispersion into account.The model predictions were consistent with the experi-mental data and were consequently used to determine the mass transfer coefficients.