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Physical and Mechanical Properties of catalpa bungei clones and Estimation of the Properties by Near-Infrared Spectroscopy

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Journal of Renewable Materials 2022年第12期10卷 3285-3302页

作者： Rui Wang Lanlan Shi Yurong Wang Research Institute of Wood Industry Chinese Academy of ForestryBeijing100091China

Air-dry density,modulus of rupture(MOR),modulus of elasticity(MOE),compressive strength parallel to grain,and hardness of catalpa bungei clones were investigated in this study with feasibility of predicting these properties by near infrared(NIR)*** best candidate Luoqiu 3'has been selected from three clones based on wood physical and mechanical property *** values of wood physical and mechanical properties have been found in the corewood compared to the *** were significant positive correlations between the air-dry density and mechanical *** from cross section for air dry density,compressive strength parallel to grain,and hardness yielded prediction models with better effects,along with the best MOR and MOE modeling effects resulted from average sections'spectra *** scatter correction(MSc)+Savitzky-Golay(S-G)smoothing method has been proved to be the most applicable *** addition,the predictions from five point sampling method were slightly better than three point ***,results suggest NIR spectroscopy was viable to predict the physical and mechanical properties of c.bungei dones with methods developed in this study proved effective in preliminary screening.

关键词： c.bungei wood density mechanical properties near-infrared spectroscopy

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