In order to explore internal factors for adsorption kinetic effect of miglitol by D001 resin, a batch adsorption operation for miglitol kinetic adsorption at different concentrations, temperatures and vibrating rates ...In order to explore internal factors for adsorption kinetic effect of miglitol by D001 resin, a batch adsorption operation for miglitol kinetic adsorption at different concentrations, temperatures and vibrating rates was investigated in oscillator (SHZ-A), respectively. The different kinetic mathematical model, Webber-Morris kinetic equation, film diffusion coefficient equation and kinetic boundary model were all applied to discuss the adsorption process. The results showed that Type 1 pseudo-second order kinetic equation can be all used to describe miglitol adsorbed by D001 resin at different concentrations, temperatures and vibrating rates. Moreover, the total activation energy (Ea) can be calculated and its value is 9.7 kJ/mol, and then calculated values of the process film diffusion coefficient and pore diffusion coefficient, it may be inferred from these gotten values that the ion exchange process is all mainly controlled by film diffusion. Therefore, the results also suggest that the external adsorption factors such as solute concentration, temperature and vibrating rate for effect of mass transfer diffusion process control of miglitol onto D001 resin are relatively weak.展开更多
Purpose:This article was intended to share and reflect on experiences concerning the education for sustainable development(ESD)project at Hongqiao Kindergarten in Shanghai.The project aimed to explore how ESD could be...Purpose:This article was intended to share and reflect on experiences concerning the education for sustainable development(ESD)project at Hongqiao Kindergarten in Shanghai.The project aimed to explore how ESD could be implemented in a current curriculum and to provide useful examples of educational activities and experiences.Design/Approach/Methods:The action research included two cycles with four steps.The first cycle involved the integration of ESD into a traditional science curriculum.The second cycle involved the validation and optimization of the ESD objectives.The implementation strategies were reviewed and refined.Findings:First,a variety of strategies can be used to identify the theme and choose the content.Second,the objectives should be developed on children’s life experiences and interests.Third,the idea of ESD can be implemented in multiple ways.Fourth,a reasonable objective system involving ESD was constructed for children by ages.Fifth,there were many effective ways to integrate ESD activities into other domains of curriculum.The challenges and implications were also discussed.Originality/Value:The study had a positive effect on teachers’ability to practice ESD.This was a pioneer project in early childhood education in China,which provided valuable information for those aiming to implement ESD practices in Chinese kindergartens.展开更多
文摘In order to explore internal factors for adsorption kinetic effect of miglitol by D001 resin, a batch adsorption operation for miglitol kinetic adsorption at different concentrations, temperatures and vibrating rates was investigated in oscillator (SHZ-A), respectively. The different kinetic mathematical model, Webber-Morris kinetic equation, film diffusion coefficient equation and kinetic boundary model were all applied to discuss the adsorption process. The results showed that Type 1 pseudo-second order kinetic equation can be all used to describe miglitol adsorbed by D001 resin at different concentrations, temperatures and vibrating rates. Moreover, the total activation energy (Ea) can be calculated and its value is 9.7 kJ/mol, and then calculated values of the process film diffusion coefficient and pore diffusion coefficient, it may be inferred from these gotten values that the ion exchange process is all mainly controlled by film diffusion. Therefore, the results also suggest that the external adsorption factors such as solute concentration, temperature and vibrating rate for effect of mass transfer diffusion process control of miglitol onto D001 resin are relatively weak.
文摘Purpose:This article was intended to share and reflect on experiences concerning the education for sustainable development(ESD)project at Hongqiao Kindergarten in Shanghai.The project aimed to explore how ESD could be implemented in a current curriculum and to provide useful examples of educational activities and experiences.Design/Approach/Methods:The action research included two cycles with four steps.The first cycle involved the integration of ESD into a traditional science curriculum.The second cycle involved the validation and optimization of the ESD objectives.The implementation strategies were reviewed and refined.Findings:First,a variety of strategies can be used to identify the theme and choose the content.Second,the objectives should be developed on children’s life experiences and interests.Third,the idea of ESD can be implemented in multiple ways.Fourth,a reasonable objective system involving ESD was constructed for children by ages.Fifth,there were many effective ways to integrate ESD activities into other domains of curriculum.The challenges and implications were also discussed.Originality/Value:The study had a positive effect on teachers’ability to practice ESD.This was a pioneer project in early childhood education in China,which provided valuable information for those aiming to implement ESD practices in Chinese kindergartens.
