文献类型：期刊文献

英文题名：EFFECTS OF SATURATED VAPOR PRE-STEAMING ON DRYING STRAIN IN ASIAN WHITE BIRCH: EXPERIMENTATION AND MODELLING

作者：Fu, Zongying[1,2] Avramidis, Stavros[3] Zhao, Jingyao[4] Cai, Yingchun[4] Zhou, Yongdong[1,2]

第一作者：Fu, Zongying;付宗营

通信作者：Zhou, YD[1];Zhou, YD[2]

机构：[1]Chinese Acad Forestry, Res Inst Wood Ind, Beijing, Peoples R China;[2]Key Lab Wood Sci & Technol State Forestry Adm, Beijing, Peoples R China;[3]Univ British Columbia, Dept Wood Sci, Vancouver, BC, Canada;[4]Northeast Forestry Univ, Coll Mat Sci & Engn, Harbin, Heilongjiang, Peoples R China

年份：2019

卷号：21

期号：1

起止页码：77-88

外文期刊名：MADERAS-CIENCIA Y TECNOLOGIA

收录：;Scopus(收录号：2-s2.0-85061449532);WOS:【SCI-EXPANDED(收录号:WOS:000455750900007)】；

基金：This work was supported by the National Forestry Industry Research Special Funds for Public Welfare Projects from State Forestry Administration of China (No. 201404502).

语种：英文

外文关键词：Artificial neural network; Betula platyphylla; mechano-sorptive creep; restrained shrinkage strain; white birch discs

摘要：The effect of low pressure saturated vapor pre-steaming on restrained shrinkage strain, mcchano-sorptive creep and the distribution of moisture content was investigated during conventional drying of wood discs. Mechano-sorptive creep was furthermore modelled by artificial neural network theory with five inputs. i.e.. pre-steaming and drying temperatures. wood moisture content, relative humidity and distance from the pith. Results revealed that, pre-steaming partly reduced the variation of moisture content distribution along radial direction, increased restrained shrinkage strain in heartwood and decreased in sapwood and slightly decreased the mechano-sorptive creep. The neural network model provided reasonable prediction results, namely, the coefficient of determination for training, validation and test sets greater than 0,95.