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The proportion of heartwood in conifer (Pinus sylvestris L., Picea abies [L.] H. Karst.) trunks and its influence on trunk wood moisture
pine spruce heartwood moisture content of wood
2015/4/24
As the tree age increases, the formation of heartwood takes place in the central part of the tree. Since there is a large difference in the moisture content between sapwood and heartwood in conifers, ...
A Defect Estimation Method within a Trunk Based on Wavelet Analysis by Diagnostic Slapping Sounds
trunk defect diagnosis wavelet analysis slapping sound
2009/8/24
It has been known that there is a relationship between wind-falls of trees and such defects as cavities or decays within their trunks. However, up to now, no such methods or devices have been develope...