Index Catalog // ScholarsArchive@OSU

Creator:: Morrell, Jeffrey J. and Oregon State University. Forest Research Laboratory
Abstract:: The specification, inspection, and remedial treatment of utility poles are addressed. Included are discussions of enhancing specifications for improved performance, techniques for detecting decay and other defects, and chemical treatments available for arresting decay of poles in service.
Resource Type:: Technical Report
Full Text:: incised pole, B) side view of incisor teeth penetrating wood, and C) commercial pole incisor. A B C

Creator:: Zahora, Andrew R. and Morrell, Jeffrey J.
Abstract:: High concentrations of the fumigant methylisothiocyanate (MITC) will effectively control decay fungi in large wood structures, but the fungitoxicity of low MITC concentrations and the influence of wood moisture content (MC) on its performance are not well understood. The MC of Douglas-fir heartwood greatly influenced the susceptibility of the decay...
Resource Type:: Article
Full Text:: . At constant, low MITC vapor concentrations (less than l ~ g / c c air), wood at 10% MC adsorbed 5

Creator:: Prasad, T. R. Narayana, Humphrey, Philip E., and Morrell, Jeffrey J.
Abstract:: Preservative treatment of whole, wood-based composite products (mainly panels) has disadvantages; problems largely stem from swelling, strength loss, and incomplete or inappropriate penetration during treatment, and distortion during redrying. Pretreatment of comminuted wood prior to mat lay-up is one alternative, though the addition of chemicals may affect bonding during subsequent...
Resource Type:: Article
Full Text:: A. VICK, C. B., R. C. DEGROOT, AND J. YOUNGQUIST. 1990. Pizzi, ed. Wood adhesives: Chemistry and

Creator:: Morrell, Jeffrey J., Sexton, Camille M., and Lebow, Stan
Abstract:: Mylone@ and tridipam are two solid chemicals that decompose to produce methylisothiocyanate (MIT), a highly effective wood fumigant. In this study, two techniques -- a rapid, test-tube method and small-scale, wood-block assay -- were used to determine the effect of the pH of various chemical buffers on the decomposition of...
Resource Type:: Article
Full Text:: colonized with Poria carbonica and treated with varying dosages of Mylone" (A, B) or tridipam (C, D). The

Creator:: Demessie, Endalkachew Sahle, Hassan, Ali, Levien, Keith L., Kumar, Satish, and Morrell, Jeffrey J.
Abstract:: The effect of supercritical fluid treatment on superficial gas permeability of Douglas-fir was investigated by using carbon dioxide either alone or amended with methanol. Permeability increased in a majority of samples, although nearly one-third of the specimens declined in permeability. Improvements in permeability appeared to be unrelated to variations in...
Resource Type:: Article
Full Text:: . Eng. Chem. Res. 27:1301-1312. MCDONALD, E. C., J. HOWARD, AND B. BEN=. 1983. Chemicals from forest

Creator:: Peralta, Perry N. and Morrell, Jeffrey J.
Abstract:: The effects of moisture content, flow direction, concentration, and temperature on the diffusion of chloropicrin in Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) heartwood were investigated. Diffusion coefficients were strongly affected by wood moisture content. Coefficients for radial and tangential diffusion at the fiber-saturation point were twice as high as those at...
Resource Type:: Article
Full Text:: C than at 20 C; however, the difference was not statistically significant, suggesting that the flow

Creator:: Morrell, Jeffrey J., Miller, Donald James, Schneider, Philip F., and Oregon State University. Forest Research Laboratory
Abstract:: Untreated and preservative-treated fence posts were exposed in soil at a test site near Corvallis, OR. Several species, including western juniper and Osage-orange, showed exceptional natural durability. Preservative treatment generally extended the useful life of the posts, but the degree of protection varied with the chemical and the application method.
Resource Type:: Technical Report
Full Text:: this, 81% falls from October through March, when average monthly temperatures range from 4∞C to 12∞C

Creator:: Oregon State University. Forest Research Laboratory, Morrell, Jeffrey J., Graham, R. D. (Robert D.), and Miller, D. J.
Resource Type:: Other
Full Text:: Appendix A: Waste disposal 17 Appendix B: References 20 Appendix C: Personal protection when applying

Creator:: Morrell, Jeffrey J.
Abstract:: The resistance of three naturally durable heartwood species and a stranded giant bamboo product to fungal and termite (Coptotermes formosanus) attack was evaluated at a test site located near Hilo, Hawaii. Merbau (Intsia bijuga or I. palembanica) and ipe (Tabebuia spp.) were both exceptionally resistant to fungal and termite attack,...
Resource Type:: Article
Full Text:: structures above ground. Forest Prod. J. 21(10): 25–31. Scheffer, T. C. and E. B. Cowling. 1966. Natural

Creator:: Winandy, Jerrold E. and Morrell, Jeffrey J.
Abstract:: A new laboratory technique to simulate the initiation of wood decay and to assess the effects of incipient decay on material properties is described. Douglas-fir heartwood specimens were exposed to brown-rot (Postia placenta and Gloeophyllum trabeum) fungi for various periods. Bendlng properties were determined by nondestructive and destructive tests, and...
Resource Type:: Article
Full Text:: exposure and testing. The MC- SG blocks were oven-dried at 103 C for 48 h, measured, and weighed. Initial

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