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Determination of Trend of a Radial Distribution of Moisture Content within a Log Cross Section by Oven-Drying of Cirmcumferential Slices - For some of domestic hardwoods -  

Lee, Nam-Ho (College of Agriculture, Chonbuk National University(Institute of Agricultural Science & Technology))
Li, Chengyuan (College of Agriculture, Chonbuk National University(Institute of Agricultural Science & Technology))
Choi, Jun-Ho (Daeboong Corp.)
Publication Information
Journal of the Korean Wood Science and Technology / v.31, no.1, 2003 , pp. 10-15 More about this Journal
Abstract
This study was carried out to investigate a radial distribution of moisture contents(MCs) within a log cross section(LC) during oven-drying of circumferential slices cut from some of domestic hardwoods LCs. For zelkova, the slices from sapwood and from transition part already reached to below hygroscopic range at 30% in average MC, whereas the innermost slice represented about 40% MC. A moisture gradient between the innermost slice and the adjacent slice from a cherry LC became severer with drying times. For castor aralia, the green MC for heartwood slices was approximately 23% higher than that for sapwood slices, and the similar moisture gradient still lasted until average 15% MC during oven-drying. For Chinese mahogany, the MCs of the mixed slices and the innermost slice were lower than those of the slices cut from the other parts during all over drying stage.
Keywords
radial distribution of moisture content; log cross section; circumferential slices; domestic hardwood;
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