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Chloropicrin movement and fungitoxicity in decaying southern pine laminated timbers

Creator:: Goodell, Barry Scott
Abstract:: Three groups of experiments were performed to determine an effective procedure for controlling decay in southern pine (Pinus spp.) laminated timbers. (i) A decaying laminated arch of southern pine was treated with chloropicrin. Movement of the chemical vapor through the arch and its effect on the decay and nondecay fungal...
Resource Type:: Masters Thesis

Chemical characterization of breakdown products involved in detection of incipient decay of wood

Creator:: Holt, Kris E.
Abstract:: See pdf
Resource Type:: Masters Thesis

Fluorescence microscopy for detecting incipient decay and estimating residual strength of wood

Creator:: Lowell, Eini Carole
Abstract:: The objectives of this study were to 1) develop a relatively quick staining procedure that would detect incipient decay by color differentiation under fluorescence, 2) quantitatively assess the amount of decay present with the use of an image analyzer, and 3) re/ate loss in strength at various decay levels to...
Resource Type:: Masters Thesis
Full Text:: Microscopy for Detecting Incipient Decay and Estimating Residual Strength of Wood Abstract approved

Detecting early decay and estimating residual strength of Douglas-fir heartwood by infrared and ultraviolet spectrophotometry

Creator:: Gibson, David G. (David Glenn), 1958-
Resource Type:: Masters Thesis
Full Text:: , 1978). They are the two major types of decay fungi responsible for deterioration of wood products and

The effects of moisture content and initial heterotrophic colonization on the decomposition of coarse woody debris

Creator:: Barker, Jason Scot
Abstract:: Previous research on coarse woody debris (CWD) indicated that moisture content and initial heterotrophic colonization of decaying wood can affect the decomposition process. Six heterotrophic treatments were created to simulate the effects of physical penetration of the bark and wood and the transmission of ascomycetes versus basidiomycetes into CWD. In...
Resource Type:: Masters Thesis
Full Text:: content and initial heterotrophic colonization of decaying wood can affect the decomposition process. Six

Measuring extracellular enzymes in pure and mixed cultures of Trametes versicolor (L.:Fr.) Pilat and Trichoderma harzianum Rifai

Creator:: Freitag, Michael
Abstract:: The biocontrol potential of Trichoderma harzianum Rifai, Trichoderma polysporum (Link.:Pers.) Rifai, Scytalidium aurantiacum Klingstr. et Beyer or a Penicillium sp. against Trametes versicolor (L. :Fr.) Pilat, Neolentinus lepideus (Fr.) Redh. et Ginns, Postia placenta (Fr.) M.Lars. et Lomb. and Irpex lacteus Fr. was evaluated using agar plate, soil bottle and...
Resource Type:: Masters Thesis

Moisture effects on properties of wood-composite assemblies

Creator:: King, David
Abstract:: Engineered wood composites are used in many structural applications and are intended for dry use. However, these materials may encounter significant amounts of wetting while in service, which can lead to structural failures. This study combined aspects of wood science, mechanics, structural engineering, and mycology to assess changes in material...
Resource Type:: Masters Thesis
Full Text:: David King for the degree of Master of Science in Wood Science and Civil Engineering presented on March

¹³C-CP MAS NMR study of decomposition of five coniferous woody roots from Oregon

Creator:: Hawkins, Robert E.
Abstract:: Using ¹³C cross polarization magic angle spinning nuclear magnetic resonance techniques on 5 species of dead trees from the northwest (western hemlock, Douglas fir, Sitka spruce, lodgepole pine and ponderosa pine) I tracked the lignin and cellulose content over a 22 to 36 year period in order to determine the...
Resource Type:: Masters Thesis
Full Text:: flmgi, if any, that is attacking certain species of tree. I had samples from the wood ofthe roots, the

Copper compounds for durable composites : effects on material properties

Creator:: Vidrine, Cheney L.
Abstract:: The effects of incorporation of selected biocides on physical and mechanical properties of aspen strandboard were assessed using five copper-based preservatives or zinc borate at three retention levels. Tebuconazole or 4,5-dichloro-2-N-octyl-4-isothiazolin-3-one (DCOI) were added as co-biocides to selective copper-based treatments. Mold box tests showed that only panels treated with DCOI...
Resource Type:: Masters Thesis
Full Text:: Cheney L. Vidrine for the degree of Master of Science in Wood Science presented on June 19, 2008. Title

ScholarsArchive@OSU

Chloropicrin movement and fungitoxicity in decaying southern pine laminated timbers

Chemical characterization of breakdown products involved in detection of incipient decay of wood

Fluorescence microscopy for detecting incipient decay and estimating residual strength of wood

Detecting early decay and estimating residual strength of Douglas-fir heartwood by infrared and ultraviolet spectrophotometry

The effects of moisture content and initial heterotrophic colonization on the decomposition of coarse woody debris

Measuring extracellular enzymes in pure and mixed cultures of Trametes versicolor (L.:Fr.) Pilat and Trichoderma harzianum Rifai

Moisture effects on properties of wood-composite assemblies

¹³C-CP MAS NMR study of decomposition of five coniferous woody roots from Oregon

Copper compounds for durable composites : effects on material properties

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