文献类型：期刊文献

英文题名：Influence Factor for Prediction of Air-Dry Density of Eucalyptus Pellita by Near Infrared Spectroscopy

作者：Zhao Rong-jun[1] Huo Xiao-mei[1] Shangguan Wei-wei[1] Wang Yu-rong[1]

第一作者：赵荣军

通信作者：Wang, YR[1]

机构：[1]Chinese Acad Forestry, Res Inst Wood Ind, Beijing 100091, Peoples R China

年份：2011

卷号：31

期号：11

起止页码：2948-2951

外文期刊名：SPECTROSCOPY AND SPECTRAL ANALYSIS

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000296689700016)】；

语种：英文

外文关键词：Words near infrared (NIR) spectroscopy; Wood of Eucalyptus pellita; Air-dry density; Influence factor

摘要：Near infrared spectroscopy(NIR) technique was applied to compare the influence factors of Eucalyptus pellita's air-dry density. Air-dry density of eucalypt wood was tested by direct measurement. After collecting the near infrared reflectance spectra of samples in different section and with different thickness, moisture content and roughness, the NIR spectra were preprocessed with the second-derivative and the regression models were built in certain spectra. The calibration models were established using 50 similar to 140 samples with the partial least squares method and validated with external validation method. The results showed that the predicted results were influenced by sample's section, thickness, roughness and moisture content. The best near infrared spectroscopy prediction model was built under the condition of transverse section, 2 similar to 5 mm thickness, 12% moisture content and meticulous roughness of wood.