作者机构：
[胡云楚; 李慧; 黄自知; 吴袁泊] College of Science, Central South University of Forestry and Technology, Changsha, 410004, China;[袁利萍; 汤连东; 胡进波] College of Material Science and Engineering, Central South University of Forestry and Technology, Changsha, 410004, China
通讯机构：
[Yuan, L.] C;College of Material Science and Engineering, China
作者机构：
[胡云楚; 冯斯宇; 田梁才; 黄自知] College of Science, Central South University of Forestry and Technology, Changsha;410004, China;[袁利萍; 吴义强] College of Material Science and Engineering, Central South University of Forestry and Technology, Changsha;[胡云楚; 冯斯宇; 田梁才; 黄自知; 袁利萍; 吴义强] 410004, China
作者机构：
[文瑞芝; 黄自知; 马强; 王琼; 胡云楚] College of Science, Central South University of Forestry & Technology, Changsha, 410004, China;[Zeng D.] Hunan Center of Disease Control and Prevention, Changsha, 410005, China
通讯机构：
College of Science, Central South University of Forestry & Technology, Changsha, China
作者机构：
[李水芳; 李姣娟; 黄自知] College of Science, Central South University of Forestry and Technology, Changsha 4l0004, China;[Shan Y.] Hunan Food Test and Analysis Center, Changsha 410125, China;[张欣] Longping Branch Graduate School, Central South University, Changsha 410125, China
通讯机构：
Hunan Food Test and Analysis Center, China
关键词：
无损检测;拉曼光谱;葡萄糖;蜂蜜;果糖含量;偏最小二乘法;支持向量机法
摘要：
应用拉曼光谱结合化学计量学方法对蜂蜜果糖和葡萄糖含量进行了定量分析。用自适应迭代重加权惩罚最小二乘（adaptive iteratively reweighted penalized least squares，airPLS）算法进行基线校正，用竞争性自适应重加权采样（competitive adaptive reweighted sampling，CARS）算法筛选变量，分别用线性的偏最小二乘（partial least squares，PLS）回归算法和非线性的支持向量机（support vector machines，SVM）回归算法建立定量校正模型，并进行预测。2种模型都有较好的预测结果。对果糖，SVM模型预测值与高效液相色谱法（high performance liquid chromatography，HPLC）测定值的相关系数（R）和预测均方根误差（root mean square error of prediction，RMSEP）分别为0.902和1.401，略优于PLS模型（R为0.892，RMSEP为1.604）；对葡萄糖，PLS模型的R和RMSEP分别为0.968和0.669，优于SVM模型（R为0.933，RMSEP为1.410）。结果表明拉曼光谱结合化学计量学方法可快速无损测定蜂蜜果糖和葡萄糖含量。
通讯机构：
[Wang, Mei] C;Cent S Univ Forestry & Technol, Inst Appl Chem, Changsha 410004, Hunan, Peoples R China.
会议名称：
2011 International Conference on Chemical Engineering and Advanced Materials, CEAM 2011
会议时间：
28 May 2011 through 30 May 2011
会议地点：
Changsha, PEOPLES R CHINA
会议主办单位：
[Wang, Mei;Hu, Yunchu;Huang, Zizhi] Cent S Univ Forestry & Technol, Inst Appl Chem, Changsha 410004, Hunan, Peoples R China.
会议论文集名称：
Advanced Materials Research
关键词：
Composite;CONE;Epoxy;Heat flux
摘要：
<jats:p>Variation law of combustion performance of glass fiber reinforced epoxy composites under different heat fluxes was studied. Final result shows that the time of epoxy resin composite shortened when increased the heat flux, and the theoretical minimum ignition heat flux obtained by curve fitting of experiment data is 2.1638kW/m<jats:sup>2</jats:sup>; multiply heat flux increased the heat release rate and complicate the stratified combustion of materials, which making the heat release rate curves more complicated. What is more，multiply the heat flux caused incomplete combustion of materials and leaded greater smoke production rate. The residual quality decreased as increased heat flux, however when the heat flux beyond 50kW/m<jats:sup>2</jats:sup>, the residual quality no longer decreased, which suggested that the heat flux used to study these materials should not be more than 50kW/m<jats:sup>2</jats:sup>. To sum up the above combustion parameters ,we could know that the safety performance of this epoxy composite was medium level, in order to improve its security level further, smoke suppression should be handled.</jats:p>
