Pore size distribution(PSD) curves of synthesized hollow silica spheres with ultrmicropores and small mesopores were obtained from calculations based on the BJH,KJS,SF,MP,NLDFT models and Prof.Zhu's method.Comparis...Pore size distribution(PSD) curves of synthesized hollow silica spheres with ultrmicropores and small mesopores were obtained from calculations based on the BJH,KJS,SF,MP,NLDFT models and Prof.Zhu's method.Comparisons indicate that Zhu's method not only gives reasonable small mesopore size but also could be further extended to the ultramicropores region for the PSD evaluation.展开更多
裂区设计能够灵活地增加试验处理和进行误差分级控制,在农业试验中应用广泛。但数据的统计分析较复杂,目前有效的相关统计软件十分缺乏。为了建立操作简单、实用性强、计算结果无误的统计分析手段,采用SAS广义线性混合模型(GLIMMIX)程...裂区设计能够灵活地增加试验处理和进行误差分级控制,在农业试验中应用广泛。但数据的统计分析较复杂,目前有效的相关统计软件十分缺乏。为了建立操作简单、实用性强、计算结果无误的统计分析手段,采用SAS广义线性混合模型(GLIMMIX)程序模块进行裂区设计数据的统计和分析,并通过实例分析说明GLIMMIX相较于传统一般线性模型(general linear model,GLM)程序模块的优缺点。结果发现,与GLM相比,GLIMMIX能够自动选用正确的误差项方差和自由度进行统计量计算,克服了GLM在某些情况下难于计算所需统计量的问题。实例验证说明,采用GLM进行裂区设计统计分析的不足及GLIMMIX分析的其他优点,并与混合程序模块(MIXED)进行了比较,认为GLIMMIX是裂区设计数据统计分析的首选模块。展开更多
基金Sponsored by Scientific Research Foundation for Returned Overseas Chinese Scholars,State Education Ministrysupported by the NFSC(No. 50672052)
文摘Pore size distribution(PSD) curves of synthesized hollow silica spheres with ultrmicropores and small mesopores were obtained from calculations based on the BJH,KJS,SF,MP,NLDFT models and Prof.Zhu's method.Comparisons indicate that Zhu's method not only gives reasonable small mesopore size but also could be further extended to the ultramicropores region for the PSD evaluation.
文摘裂区设计能够灵活地增加试验处理和进行误差分级控制,在农业试验中应用广泛。但数据的统计分析较复杂,目前有效的相关统计软件十分缺乏。为了建立操作简单、实用性强、计算结果无误的统计分析手段,采用SAS广义线性混合模型(GLIMMIX)程序模块进行裂区设计数据的统计和分析,并通过实例分析说明GLIMMIX相较于传统一般线性模型(general linear model,GLM)程序模块的优缺点。结果发现,与GLM相比,GLIMMIX能够自动选用正确的误差项方差和自由度进行统计量计算,克服了GLM在某些情况下难于计算所需统计量的问题。实例验证说明,采用GLM进行裂区设计统计分析的不足及GLIMMIX分析的其他优点,并与混合程序模块(MIXED)进行了比较,认为GLIMMIX是裂区设计数据统计分析的首选模块。