Index Catalog // ScholarsArchive@OSU

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:: , Corvallis, OR. GOODELL, B. S., AND R. D. GRAHAM. 1983. A survey of methods used to detect and control

Creator:: Schowalter, Timothy D. and Morrell, Jeffrey J.
Abstract:: The chemical composition of the boles of 14 Douglas-fir trees growing in the central Willamette Valley of western Oregon was examined to determine whether differences in various chemical component levels might help to explain arthropod or microbial colonization patterns. Levels of nearly all cations as well as N and P...
Resource Type:: Article
Full Text:: , Logan UT. MITCHELL, A. K.. H. J. BARCLAY, H. BRIX, D. E W. POL- LARD, R. BENTON, A N 0 R. DBJONG

Creator:: Zahora, Andrew R. and Morrell, Jeffrey J.
Abstract:: A closed-tube bioassay with Poria placenta was used to measure residual fungistatic vapors in wood fumigated with methylisothiocyanate (MIT). This bioassay showed an inverse linear relationship between fungal growth and the amount of MIT in the wood samples. For fumigated increment-core sections of unseasoned Douglas-fir heartwood (4.8 mm in diameter...
Resource Type:: Article
Full Text:: fungitoxic vapors in fumigant-treated wood. REFERENCES GOODELL, B. S., AND R. D. GRAHAM. 1983. A survey

Creator:: Zahora, Andrew R. and Morrell, Jeffrey J.
Abstract:: The influence of moisture content (MC) and conventional preservative treatment on methylisothiocyanate (MIT) sorption and diffusion were investigated in Douglas-fir wood. In wood at 0% MC, the ratio of equilibrium MIT adsorption to desorption concentrations was low (0.2), but it increased rapidly to about 0.94 above 18% MC. Partition coefficients...
Resource Type:: Article
Full Text:: Preservation. IRG/WP/1328. GOODELL, B. S., AND R. D. GRAHAM. 1983. A survey of methods used to detect and

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:: performance of MITC in wood. REFERENCES GOODELL, B. S., R. D. GRAHAM, AND R. L. KRAHMER. 1980

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:: COPPER ZINC ARSENATE ON SHEAR STRENGTH DEVELOPMENT OF PHENOLIC RESIN TO SITKA SPRUCE BONDS1 T. R

Creator:: Morrell, Jeffrey J. and Smith, Susan M.
Abstract:: Heartwood from coastal redwood [Sequoia sempervirens (D. Don.) Endl.] is very durable and is often used untreated in harsh environments, such as cooling towers of power or chemical processing plants. Wood in this environment is often attacked by soft rot fungi. Some wood users attempt to bolster protection by including...
Resource Type:: Article
Full Text:: soft rot fungi were con- tributing to this decline. M A T E R I A L S A N D METHODS Eight blocks

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:: :503507. S r w , R. G. D., AND J. H. TORUUE. 1980. Principles and procedures of statistics. McGraw

Creator:: Morrell, Jeffrey J.
Abstract:: The effect of various wood characteristics on decomposition of metham sodium to methylisothiocyanate in sixteen North American and Southeast Asian hardwoods and softwoods was investigated. While marked differences were noted in the degree of decomposition among some species, the relationship between decomposition and lignin content, extractive levels, wood pH, or...
Resource Type:: Article
Full Text:: r - r D N m m r - Day 2 5 5 7 613 23 57 802 32 5 7 1,052 2 3 2 b m -t h h h 0 - 4 m

Creator:: Acda, Menandro N., Morrell, Jeffrey J., and Levien, Keith L.
Abstract:: The effects of supercritical fluid (SCF) impregnation on physical properties of composites were investigated at various pressures, temperatures, and treatment times with carbon dioxide as the fluid and tebuconazole as a biocide. In general, within the ranges tested, SCF treatment had no negative effects on modulus of rupture (MOR), modulus...
Resource Type:: Article
Full Text:: rreatmrnr rime. Varinhle Stiltistic Plvwmd Pnniclcbnrd R r k c h o ~ ~ d MDF Thickness swella (%) Mean

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