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Title Transcription
PARTIAL LEAST SQUARES PLS ホウニヨル モクザイ ノ ヒジュウ オヨビ カガク セイブン ノ スイテイ
Title Alternative (English)
Estimation of Wood Specific Gravity and chemical content with Partial Least Squares (PLS) method
File
language
jpn
Author
Murayama, Miho
Nakai, Takahisa
Yashiro, Makoto
Mishiro, Akiyoshi
Description
In order to conveniently estimate an air-dried specific gravity and a chemical abundance such as alcohol benzene extractives,holocellulose and lignin content of sugi(Cryptomeria japonica D.Don),the partial least squares(PLS)method was done on the basis of spectrum values got from Fourier transformation Raman spectroscopy and the prediction a㏄uracy was confirmed. In the following,the results of examining prediction a㏄uracy of calibration curve in 20 unknown samples are shown,after calibration curve is made in 43 known samples.
(1) In air-dried specific gravity and holocellulose content, correlation coefficients between measured and predictive values in the known samples were 0.97 and 0.99,respectively. However,either correlation coefficients were 0.88 in the unknown samples.
(2) In the alcohol-benzene extractives content,the correlation coefficient between measured and predictive values in the known sample was 0.98,and was 0.96 in the unknown sample. However,it was indicated that attention was necessary for the applicatlon of the PLS method since the relative prediction error was about 20%.
(3) In the lignin content,the correlation coefficient between measured and predictive value in the known sample was 0.93,and was 0.92 in the unknown sample.
Journal Title
島根大学総合理工学部紀要. シリーズA
Volume
33
Start Page
139
End Page
147
ISSN
13427113
Published Date
1999-12-24
NCID
AA11157087
Publisher
島根大学総合理工学部
Publisher Aalternative
Interdisciplinary Faculty of Science and Engineering, Shimane University
NII Type
Departmental Bulletin Paper
OAI-PMH Set
Interdisciplinary Graduate School of Science and Engineering
Remark
30-41+ / 1997-2007
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