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| Title | Publication | Publish Year |
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Lignin Utilization II — Resin Properties of 4-Alkyl Substitutes Catechol Compounds
Four-methylcatechol was tested as a resin monomer and found to produce an excellent formaldehyde resin. This result is in marked contrast with the 4-alkyl substituted guaiacol compounds obtained directly from […]
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Forest Products Journal | 1972 |
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Liquid Flow Paths Into Wood Using Polymerization Techniques– Douglas-Fir and Styrene
The path of flow of a liquid into Douglas-fir was studied by forcing catalyzed monomeric styrene into wood and polymerizing the liquid to a solid condition. Microtome sections were prepared […]
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Forest Products Journal | 1964 |
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Load-withdrawal displacement characteristics of nails
Load-withdrawal displacement relationships were established for five different nails for use in nonlinear finite-element models. Although withdrawal capacity is commonly reported, load-withdrawal displacement relationships for nails are not available in […]
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Forest Products Journal | 1993 |
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Locating Knots By Industrial Tomography–A Feasibility Study
Industrial photon tomography was used to scan four southern pine logs and one red oak log. The logs were scanned at 16 cross-sectional slice planes located 1 centimeter apart along […]
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Forest Products Journal | 1984 |
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Locating knots in wood with an infrared detector system
Developing accurate machine vision is one of the final obstacles that the wood processing industry now faces. In this research, radiant heating of lumber followed by scanning for knots with […]
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Forest Products Journal | 1998 |
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Log Grading Improvements
Grades were developed for logs according to desirability of their products relative to current utilization practices. Hardwood logs can be graded for yield of factory lumber (Class I) and heavy […]
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Forest Products Journal | 1954 |
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Logging Residues in Florida, Georgia, and South Carolina
A study conducted in 1966 – 1972 of 292 active harvesting operations in Florida, Georgia, and South Carolina has provided utilization information by product and by softwood and hardwood species […]
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Forest Products Journal | 1974 |
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Logistic Regression: A Potentially Useful Tool for Researchers
The potential usefulness of logistic regression is illustrated using data from 112 harvested timber tracts. The binary (0 or 1) dependent variable is indicative of either a profit or loss […]
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Forest Products Journal | 1986 |
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Long-term strength of CCA-treated lumber
The effect of chromated copper arsenate (CCA) treatment on the bending duration-of-load (DOL) characteristics of 2 by 4 southern pine lumber was studied. Previous DOL studies have used untreated lumber. […]
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Forest Products Journal | 1989 |
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Longevity of Untreated Wood in Use Above Ground
Test crosses constructed from 12 different softwoods and 9 different hardwoods were exposed on a test fence for 9 to 12 years in both southern Mississippi and Wisconsin. Objectives of […]
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Forest Products Journal | 1985 |
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Longitudinal and radial variation of slope of grain in black spruce lumber
Slope-of-grain measurements were taken at 11 positions along 94 planed and kiln-dried specimens of black spruce Picea Mariana (Mill.) B.S.P. lumber measuring 38 mm by 89 mm by 4.27 m […]
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Forest Products Journal | 1995 |
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Longitudinal Flow of Liquids in Southern Pine Poles
Rates of flow of several 1.5 percent water-soluble preservatives in southern pine poles was investigated by using an end-cap fitted to the butt end of the pole and sealed so […]
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Forest Products Journal | 1969 |
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Longitudinal Moisture Response in Truss Lumber–A Potential Cause of Ceiling-Partition Or Floor-Partition Separation
In recent years we have seen an increase in a phenomenon referred to as ceiling-floor partition separation (CFPS). Generally, CFPS can be described as cracking or breaking of the ceiling […]
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Forest Products Journal | 1983 |
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Longitudinal Permeability of Wood to Gases and Nonswelling Liquids
A number of samples of both heartwood and sapwood of eastern hemlock were selected in order to cover a very broad range of permeability. The permeability of these samples was […]
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Forest Products Journal | 1967 |
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Longitudinal Shrinkage of Western Redcedar, Western Hemlock, and True Fir
Longitudinal shrinkage of western redcedar, western hemlock, and true firs is within the range of values usually given for this property. Average longitudinal shrinkage from green to OD condition was […]
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Forest Products Journal | 1974 |
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Loss of Creosote from Douglas-Fir Marine Piles
Three Douglas-fir marine piles were sampled for creosote content soon after pressure treatment to a minimum retention of 20 pounds of creosote per cubic foot of wood in the outer […]
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Forest Products Journal | 1977 |
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Low Cost Protein Glue for Southern Pine Plywood
A moderately alkaline soybean-blood glue containing 2.5 percent dialdehyde starch, a nonvolatile polymeric dialdehyde, was evaluated for hot-press bonding in southern pine plywood. Resistance to delamination exceeded commercial standard requirements […]
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Forest Products Journal | 1965 |
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Low lumber recovery at southern pine sawmills may be due to misshapen sawlogs
For years, analysts have criticized the southern pine sawmill industry for low lumber recovery and the careless waste of our timber resource. But evidence suggests that low lumber recovery may […]
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Forest Products Journal | 1993 |
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Low-Speed Effects on Thick-Slicing
A previous study showed that as knife-cutting speed was reduced from 500 to 5 feet per minute, the depth of fractures caused by the slicing also decreased. The purpose of […]
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Forest Products Journal | 1976 |
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Lumber Complex of the Future–Part VIII: the Rough Mill Process
The conventional rough mill is a crosscut first sequence with cut lines determined by the machine operator based on visual examination of the lumber. Future rough mill process concepts include […]
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Forest Products Journal | 1981 |
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Lumber Grade Yields from Spruce Budworm–Damaged Balsam Fir
In two grade yield studies conducted at a commercial sawmill in Northern Minnesota, 383 100-inch bolts, bucked from 149 balsam fir trees, were processed into lumber. Production of 2- by […]
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Forest Products Journal | 1983 |
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Lumber Manufacturing in 1959
Forecast for the sixties–more automation, more packaging, more utilization, and more research. Rapid technical advances were made during 1959. In the Southeast sparse-tooth saws in edgers and headrigs increased production […]
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Forest Products Journal | 1960 |
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Lumber moisture content and temperature changes with kiln conditions
Lumber driers need more information regarding the use of electronic lumber moisture content (MC) and temperature sensors for monitoring and controlling kiln conditions. The goal of this study was to […]
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Forest Products Journal | 1989 |
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Lumber Production–Analyzing Costs, Sales, and Supply Relationships
Production costs and volumes and sales realization for Montana lumber producers are analyzed for the 1963-1972 period. The effect of grade recovery on sales realization is demonstrated to show how […]
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Forest Products Journal | 1974 |
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Lumber Quality of Beetle-Killed Southern Pine in Virginia
Test sawings of beetle-killed southern pine were conducted to determine the potential grade yields of dimension lumber at various times after foliage fade Trees were harvested at periods of 12 […]
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Forest Products Journal | 1979 |