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Measurement of annual ring width of log ends in forest machinery
SPIE Proceedings, 2008The quality of wood is of increasing importance in wood industry. One important quality aspect is the average annual ring width and its standard deviation that is related to the wood strength and stiffness. We present a camera based measurement system for annual ring measurements.
Kalle Marjanen +2 more
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Evidence of Climatic Effects in the Annual Rings of Trees
Ecology, 1920The first substantial comparison between rings and rain with which the author is acquainted was made by the astronomer, J. C. Kapteyn of Holland, in i88o and i88i on oaks in the Rhine region. Professor Kapteyn has recently prepared and published a brief pamphlet on the subject.2 A similar comparison between the growth of the great sequoia (Sequoia ...
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The annual-ring sign of calculus in the setting of horseshoe kidney
The American Journal of the Medical Sciences, 2023Xiao, Han, Mingxing, Han, Jun, Li
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Annual, semi-annual and solar cycle variations in Sq, and ring current effects
Exploration Geophysics, 1986The difference of H at two magnetic observatories on the same meridian, but having latitudes equatorwards and polewards of the latitude of the Sq focus, yields a measure of Sq intensity largely free from disturbance. This is because the Sq variations are of opposite sign at the two observatories whereas the disturbance variations, having the same sign ...
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THINNING GRADES BASED ON THE THICKNESS OF ANNUAL RINGS
Forestry, 1955W. E. HILEY, R. LEHTPERE
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Intra-annual time scales in tree rings
Dendrochronologia, 2007Sergio Rossi, Annie Deslauriers
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