用近红外漫反射法对炭布/酚醛预浸料的树脂含量、可溶树脂含量和挥发分含量进行在线监测,通过偏最小二乘法分别建立标准模型,并选择了光谱预处理方法和PLS的因子数。用近红外方法和标准方法对未知样品进行分析,通过t检验结果显示2种方...用近红外漫反射法对炭布/酚醛预浸料的树脂含量、可溶树脂含量和挥发分含量进行在线监测,通过偏最小二乘法分别建立标准模型,并选择了光谱预处理方法和PLS的因子数。用近红外方法和标准方法对未知样品进行分析,通过t检验结果显示2种方法没有显著差别,利用近红外方法可同时预测3项指标,1 m in内就可分析1个样品,在生产过程中可利用近红外分析的结果调解工艺参数。研究表明,近红外分析是控制炭布/酚醛预浸料质量的有效和准确的方法。展开更多
文章从实际应用的角度对满意度模型进行了分析,并通过前人的研究对两种估计方法进行了多方面的比较;运用Monte Carlo模拟对CSI实用中样本量问题进行了探讨:应用proactive Monte Carlo证明PLS在小样本下估计效果比LISREL更具稳健性,又应...文章从实际应用的角度对满意度模型进行了分析,并通过前人的研究对两种估计方法进行了多方面的比较;运用Monte Carlo模拟对CSI实用中样本量问题进行了探讨:应用proactive Monte Carlo证明PLS在小样本下估计效果比LISREL更具稳健性,又应用reactive Monte Carlo模拟证明PLS对样本量也有要求,并非任何小样本都适用。展开更多
The quality prediction of tube hollow model based on the variance staged multiway partial least square (MPLS) method was proposed.The key aspects of staged decomposition of the productive data,calculation of the varia...The quality prediction of tube hollow model based on the variance staged multiway partial least square (MPLS) method was proposed.The key aspects of staged decomposition of the productive data,calculation of the variance value,modeling,and on-lined prediction in the variance-staged MPLS method were introduced.Based on the model,iterative optimal control method was used for quality control of tube hollow.The experimental results show that the obvious benefits of this method are low maintenance cost,good real time function,high reliability precision,and practical application to on-line prediction and optimization on the quality of tube hollow.展开更多
文摘用近红外漫反射法对炭布/酚醛预浸料的树脂含量、可溶树脂含量和挥发分含量进行在线监测,通过偏最小二乘法分别建立标准模型,并选择了光谱预处理方法和PLS的因子数。用近红外方法和标准方法对未知样品进行分析,通过t检验结果显示2种方法没有显著差别,利用近红外方法可同时预测3项指标,1 m in内就可分析1个样品,在生产过程中可利用近红外分析的结果调解工艺参数。研究表明,近红外分析是控制炭布/酚醛预浸料质量的有效和准确的方法。
文摘文章从实际应用的角度对满意度模型进行了分析,并通过前人的研究对两种估计方法进行了多方面的比较;运用Monte Carlo模拟对CSI实用中样本量问题进行了探讨:应用proactive Monte Carlo证明PLS在小样本下估计效果比LISREL更具稳健性,又应用reactive Monte Carlo模拟证明PLS对样本量也有要求,并非任何小样本都适用。
基金Project(60674063) supported by the National Natural Science Foundation of China
文摘The quality prediction of tube hollow model based on the variance staged multiway partial least square (MPLS) method was proposed.The key aspects of staged decomposition of the productive data,calculation of the variance value,modeling,and on-lined prediction in the variance-staged MPLS method were introduced.Based on the model,iterative optimal control method was used for quality control of tube hollow.The experimental results show that the obvious benefits of this method are low maintenance cost,good real time function,high reliability precision,and practical application to on-line prediction and optimization on the quality of tube hollow.
