"互联网+教育","一带一路"等战略的提出给高校英语教学带来了新的机遇和挑战,该文基于阿兰·凯灵顿的移动学习模型(Padagogy轮),针对高职英语教学中的母语文化元素融入,通过目标、行为动词、活动、平板的应用程..."互联网+教育","一带一路"等战略的提出给高校英语教学带来了新的机遇和挑战,该文基于阿兰·凯灵顿的移动学习模型(Padagogy轮),针对高职英语教学中的母语文化元素融入,通过目标、行为动词、活动、平板的应用程序(i Pad Apps)的设计逐步实现核心圈识记和理解、应用、分析、评价、创造的教学目标,从Padagogy轮的构建和实施提出适应战略机遇期的英语信息化实践的策略参考。展开更多
Four methods, including voltammetric measurement of double layer capacitance, surface oxides reduction, under potential deposition of Cu and carbon monoxide （CO） stripping have been applied to evaluate the real surf...Four methods, including voltammetric measurement of double layer capacitance, surface oxides reduction, under potential deposition of Cu and carbon monoxide （CO） stripping have been applied to evaluate the real surface area of a polycrystalline Pd （pc-Pd） electrode. The results reveal that the second and third methods lead to consistent results with deviations below 5%. And from the determined double layer capacitance and CO stripping charge, it is deduced that the double layer capacity unit area is 23.1±0.4μF/cm2 and the saturated CO adlayer should be ca. 0.66 ML in order to ensure that the real surface area as determined is consistent with the other two techniques. The applicability as well as the attentions when applying these techniques for the determination of the real surface area of pc-Pd electrodes have been discussed.展开更多
文摘"互联网+教育","一带一路"等战略的提出给高校英语教学带来了新的机遇和挑战,该文基于阿兰·凯灵顿的移动学习模型(Padagogy轮),针对高职英语教学中的母语文化元素融入,通过目标、行为动词、活动、平板的应用程序(i Pad Apps)的设计逐步实现核心圈识记和理解、应用、分析、评价、创造的教学目标,从Padagogy轮的构建和实施提出适应战略机遇期的英语信息化实践的策略参考。
文摘Four methods, including voltammetric measurement of double layer capacitance, surface oxides reduction, under potential deposition of Cu and carbon monoxide （CO） stripping have been applied to evaluate the real surface area of a polycrystalline Pd （pc-Pd） electrode. The results reveal that the second and third methods lead to consistent results with deviations below 5%. And from the determined double layer capacitance and CO stripping charge, it is deduced that the double layer capacity unit area is 23.1±0.4μF/cm2 and the saturated CO adlayer should be ca. 0.66 ML in order to ensure that the real surface area as determined is consistent with the other two techniques. The applicability as well as the attentions when applying these techniques for the determination of the real surface area of pc-Pd electrodes have been discussed.
