منابع مشابه
Effect of Curve Sawing on Lumber Recovery and Warp of Short Cherry Logs Containing Sweep
—It has been estimated that approximately one-third of hardwood sawlogs have a significant amount of sweep and that 7 to nearly 40 percent of the yield is lost from logs that have greater than 1 inch of sweep. While decreased yield is important, for hardwood logs the loss of lumber value is likely more significant. A method that produced lumber while accounting for log curvature (sweep) would a...
متن کاملElectroweak Double-logs at Small X
We investigate enhanced EW corrections to inclusive hard processes in the TeV energy region with emphasis on the small-x situation, in which the hard scale Q is significantly smaller than the available energy √ s ≡ Q/x. We first propose and justify a general factorization formula in which the (double-log) EW form factor at scale Q is factorized from EW parton distribution functions, which satis...
متن کاملSAWing on Symmetry
In this paper we investigate the behavior of mutation-based evolutionary algorithms on highly symmetric binary constraint satisfaction problems. With empirical methods we study why and when these algorithms perform better under the stepwise adaptive weighting of penalties (SAWing) than under the standard penalty function. We observe that SAWing has little effect when the local optima of the sym...
متن کاملSimulation of Hardwood Log Sawing
Preface Abstract Mathematical modeling computer programs for several hardwood sawing systems have been developed and are described. One has judgment capabilities. Several of the subroutines are common to all of the models. These models are the basis for further research which examines the question of best-grade sawing method in terms of lumber value yield. This Research Paper is one in a series...
متن کاملThe effect of curve sawing two-sided cants from small-diameter hardwood sawlogs on lumber and pallet part yields
Curve sawing is a primary log breakdown process that incorporates gang-saw technology to allow two-sided cants from logs with sweep to be cut parallel to the log surface or log axis. Since curve-sawn logs with sweep are cut along the grain, the potential for producing high quality straight-grain lumber and cants increases, and strength, stiffness, and dimensional stability are maximized. Presen...
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ژورنال
عنوان ژورنال: The Forestry Chronicle
سال: 1963
ISSN: 0015-7546,1499-9315
DOI: 10.5558/tfc39175-2