Index Catalog // ScholarsArchive@OSU

The Effect of Sill Height on Decay in Air-Seasoning Crossties

Creator:: Rogers, Leon R.
Abstract:: The sustainable use of wood for rail ties requires chemical treatment to increase service life and maintain structural integrity. Treatment can only be applied after lengthy air-seasoning to reduce moisture content in wood, but seasoning leaves ties exposed to attack by decay fungi for up to a year. One factor...
Resource Type:: Masters Thesis

The phytosanitation of solid wood packaging materials using wood preservatives

Creator:: Schauwecker, Christoph F.
Abstract:: New species introductions have been associated with the movement of people for thousands of years. For instance, horses were introduced into North America by Spanish explorers, while pigs were introduced by the Polynesians into many Pacific islands long before the establishment of permanent European settlements. Both of these species introductions...
Resource Type:: Masters Thesis

Application of Infrared Spectroscopy for Determination of Wood Natural Durability

Creator:: Lipeh, Shahlinney
Abstract:: Natural durability remains one of the most attractive characteristics of wood, and helps wood obtain a premium price. A worldwide shift towards the use of younger trees from intensively managed forests has created greater concerns about wood quality, especially the wood’s resistance to fungi and insects. Wood durability is assessed...
Resource Type:: Dissertation
Full Text:: . Laurence R. Schimleck for guidance, support and valuable advices during my PhD years in the Wood Science

Wood treatment by double-diffusion using copper sulfate and sodium fluoride

Creator:: Pavia-Jones, K. Josephine
Abstract:: In investigating wood treatment as a possible processing option for Alaska forest products manufacturers, the double-diffusion method using sodium fluoride followed by a copper sulfate appeared to be the most advantageous approach. Yet, little information was available as to the chemical retention after treating and its resistance to leaching. Green...
Resource Type:: Masters Thesis
Full Text:: Double-Diffusion Using Copper Sulfate and Sodium Fluoride. Abstract approved: Michael R. Milota Jeffrey

Environmental effects on heartwood extractive content and their consequences for natural durability in Douglas-fir and western redcedar

Creator:: Taylor, Adam McVaugh, 1969-
Abstract:: Heartwood can have properties that are distinct from sapwood, including resistance to insect and microbial attack. Despite the practical importance of heartwood formation in trees, a review of the literature revealed that little was known about the effects of environmental factors on heartwood quality or how variations in heartwood properties...
Resource Type:: Dissertation
Full Text:: and crown of the tree than at I m above the ground. They hypothesized that respiration was r&ated to

Characterization of Fungal Communities in Selected Wood Species by Field Exposure Tests

Creator:: Torres-Andrade, Paola A.
Abstract:: Fungi are the primary biological agents of wood deterioration and cause major economic losses of wood products globally. Wood in outdoor applications tends to remain wet for extended time periods, making it susceptible to fungal attack. Understanding the factors involved in fungal colonization of wood is important for developing improved...
Resource Type:: Dissertation

Fungal colonization of Douglas-fir sapwood

Creator:: Kang, Sung-Mo
Abstract:: The fungi that cause mold and stain of freshly sawn lumber result in millions of dollars in losses to the forest products industry. Stain and mold are typically prevented by either kiln drying or by application of a topical fungicide. While these treatments are effective, kiln drying is costly and...
Resource Type:: Masters Thesis

Development of an Accelerated Method for Assessing Decay of Wood Plastic Composites (WPC's)

Creator:: Silva Guzman, Jose Antonio
Abstract:: This study examined the decay resistance of the pine and maple components of wood plastic composites (WPC' s) of varying thicknesses exposed on several culture media to wood decay fungi under laboratory conditions. The ability of malt agar extract (MEA), potato dextrose agar (PDA), amended basal salts, sawdust (maple and...
Resource Type:: Dissertation

Management of powder-post beetles, Dinoderus minutus F. in freshly cut bamboo

Creator:: Garcia, Carlos Manalo
Abstract:: The goal of this project was to develop an integrated pest management strategy for the control of a powder-post beetle (Dinoderus minutus F.). This species causes serious damage in Philippine bamboo. Developmental threshold and thermal constants were examined and natural enemies and ftmgi associated with beetles were investigated. Finally, the...
Resource Type:: Dissertation
Full Text:: Garcia presented on February 3, 2005 APPROVED aj r Profes , representing Wood Science Head o the

Effects of best management practices on copper migration from Douglas-fir lumber treated with ACZA, CA or ACQ

Creator:: Ye, Min
Abstract:: Copper is the most common ingredient in waterborne preservatives and provides excellent activity against most fungi and insects. However, issues associated with copper migration from treated wood have created increasing concerns about potential risks to non-target organisms in surrounding environments, especially those in sensitive aquatic environments. Various Best Management Practices...
Resource Type:: Masters Thesis

Modeling changes in flexural properties of softwood beams during fungal decomposition

Creator:: Mitsuhashi Gonzalez, June M.
Abstract:: Moisture intrusion in residential structures can lead to substantial fungal decay and this damage costs billions in repair/replacement costs. The extent of damage and the rate at which it occurs are primarily dependent on the wood moisture content and temperature in the structure. Determining the risk of decay for various...
Resource Type:: Dissertation
Full Text:: ), Gloeophyllum trabeum (Pers.:Fr.) Murr. (Madison 617), and Trametes versicolor (L:Fr.) Pilat (Madison R-105

Controlling biodeterioration of western wood species with over- the-counter wood preservatives

Creator:: Newbill, Mark A.
Abstract:: Over-the-counter (OTC) wood preservatives can provide wood with both a moisture barrier and fungicidal protection against biodeterioration, yet there is little comparative data on the performance of these preservatives. In this study, the potential of various low-toxicity, OTC preservatives was evaluated on five western wood species, western red cedar (Thuja...
Resource Type:: Masters Thesis
Full Text:: versicolor (L:Fr.) Pilt (Mad. R-105). The inoculated bottles were incubated at 28 C until the feeder strip

Performance of copper based biocides in potentially copper tolerant soils

Creator:: Chang, Andrew B.
Abstract:: Copper is an excellent biocide which has a long history of usage for protecting wood from deterioration, but some organisms have developed tolerance for this chemical. Copper tolerance among wood decay fungi is a poorly understood phenomenon that is gaining importance as cofactors such as arsenic and chromium are removed...
Resource Type:: Masters Thesis

The effects of supercritical CO₂ on the bending properties and treatment defects of four refractory wood species

Creator:: Anderson, Matthew E.
Abstract:: It is difficult to treat the heartwood of many wood species with liquid preservatives using conventional liquid processes. Supercritical fluids (SCF) used as carriers of preservatives to impregnate refractory wood species may be an attractive alternative to conventional liquid carriers. While SCF impregnation has many potential advantages, some wood species...
Resource Type:: Masters Thesis
Full Text:: ;....,.,,,.a.+-=:t-.1 ---.uf--71'-- ___ , __________ _ I L.-.!...L....1 T.:>fl"r.:>u T l\tf nrr~ll Robert J

ScholarsArchive@OSU

The Effect of Sill Height on Decay in Air-Seasoning Crossties

The phytosanitation of solid wood packaging materials using wood preservatives

Application of Infrared Spectroscopy for Determination of Wood Natural Durability

Wood treatment by double-diffusion using copper sulfate and sodium fluoride

Environmental effects on heartwood extractive content and their consequences for natural durability in Douglas-fir and western redcedar

Characterization of Fungal Communities in Selected Wood Species by Field Exposure Tests

Fungal colonization of Douglas-fir sapwood

Development of an Accelerated Method for Assessing Decay of Wood Plastic Composites (WPC's)

Management of powder-post beetles, Dinoderus minutus F. in freshly cut bamboo

Effects of best management practices on copper migration from Douglas-fir lumber treated with ACZA, CA or ACQ

Modeling changes in flexural properties of softwood beams during fungal decomposition

Controlling biodeterioration of western wood species with over- the-counter wood preservatives

Performance of copper based biocides in potentially copper tolerant soils

The effects of supercritical CO₂ on the bending properties and treatment defects of four refractory wood species

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