Index Catalog // ScholarsArchive@OSU

Creator:: Jeihooni, Asghar, Krahmer, Robert L., and Morrell, Jeffrey J.
Abstract:: The effect of pretreatment of Douglas-fir flakes with CCA-C, borate, and azaconazole on properties of flakeboard was studied. Flakes had higher retention levels of CCA-C and borate in their ends than in their centers. The distribution of chemicals was uniform in panels, which indicates that the chemicals did not migrate...
Resource Type:: Article
Full Text:: DOUGLAS-FIR FLAKEBOARD1 A,sghnr Jeihooni Research Assistant Rohort L. Krahmer l'~.ofessc~r Emeritus

Creator:: Ye, Min and Morrell, Jeffrey J.
Abstract:: The potential for preservative migration from treated wood exposed in or above aquatic environments has become a major concern in some parts of the United States. Best management practices (BMP) were designed to decrease the potential environmental footprint of treated wood, but there are few studies assessing the efficacy of...
Resource Type:: Article
Full Text:: COPPER MIGRATION FROM ALKALINE-COPPER-TREATED DOUGLAS-FIR LUMBER Min Ye Graduate Research Assistant E

Creator:: Gartner, Barbara L., Morrell, Jeffrey J., Freitag, Camille M., and Spicer, Rachel
Abstract:: Heartwood durability of Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco var. menziesii) was studied as a function of vertical and radial position in boles of trees with a wide range of leaf area/sapwood area ratios. Six 34- year-old trees were harvested from each of three plots established 14 years before: very dense,...
Resource Type:: Article
Full Text:: Douglas-fir trees from a young stand Barbara L. Gartner, Jeffrey J. Morrell, Camille M. Freitag, and

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:: , R. L. 1961. Anatomical features ofpermeable and refmctoq Douglas-fir. Forest Prod. J. 11:439-441

Creator:: Schneider, Philip F., Levien, Keith L., and Morrell, Jeffrey J.
Abstract:: The development of pressure inside wood during preservative impregnation was studied using Douglas-fir heartwood and ponderosa pine sapwood. Pressure sensors mounted on sample holders provided the most reliable measurements. As expected, pressure equilibrated most rapidly with air as the treatment medium and ponderosa pine as the test species. Pressure changes...
Resource Type:: Article
Full Text:: Protection, Inc. 3941 Bonsal Rd. Conley, GA 30288 Keith L. Levien Associate Professor Department of

Creator:: Schneider, Philip F., Freitag, Camille M., and Morrell, Jeffrey J.
Abstract:: Wood that is submerged in fresh water for long periods has increased permeability and other changed properties. Wood that is submerged in salt water may absorb considerable quantities of salts, which may render the wood resistant to microbial colonization. In this report, we describe decay tests on Douglas-fir sapwood and...
Resource Type:: Article
Full Text:: DECAY RESISTANCE OF SALTWATER-EXPOSED DOUGLAS-FIR PILES1

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:: residue in chloropicrin-treated Douglas-fir. Wood Fiber Sci. 18(1): 127-1 33. HIGHLEY, T. L., AND W. E

Creator:: Lebow, Stan T. and Morrell, Jeffrey J.
Abstract:: Tests were conducted to determine the effect of ACZA composition on fixation and the roles of adsorption and precipitation in fixation. The sites of copper and zinc adsorption within the treated wood and the bonding environment of adsorbed copper were also examined. The results generally support the finding that arsenic...
Resource Type:: Article
Full Text:: DOUGLAS-FIR' Stan T. LeboW2 Senior Research Assistant Department of Forest Products Oregon State

Creator:: Miller, D. B. and Morrell, Jeffrey J.
Abstract:: Vapam(r) (NaMDC) is the fumigant most commonly used to arrest and control decay of utility poles. While volatile fungitoxins are detectable only 1 to 2 years after treatment, poles treated with Vapam(r) remain free of decay fungi for 6 to 17 years. Vapam(r) decomposes to produce volatile fungicides as well...
Resource Type:: Article
Full Text:: DOUGLAS-FIR HEARTWOOD' D. B. Miller and .I. J. Morrell Research Associate and Assistant Professor

Creator:: Forsyth, Paul G. and Morrell, Jeffrey J.
Abstract:: Basamid (3,5-dimethyl-l,3,5,2H-tetrahydrothiadiazine-2-thione), a crystalline powder first used as a soil sterilant, has shown promise as a wood fumigant. This chemical decomposes to methylisothiocyanate (MITC), the primary active ingredient, as well as other products; but the rate of decomposition in wood is too slow to be effective unless certain catalysts are...
Resource Type:: Article
Full Text:: DECOMPOSITION OF BASAMID IN DOUGLAS-FIR HEARTWOOD

ScholarsArchive@OSU