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Filtering by: Creator Jeffreys, Bradford J. Remove constraint Creator: Jeffreys, Bradford J. Advisor Morrell, Jeffrey J. Remove constraint Advisor: Morrell, Jeffrey J.

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  • 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
    Full Text:
    Abstract approved: ______________________________________________________ Jeffrey J. Morrell

  • Utilization of ground peanut husk as an alternative fiber material for particleboard

    Creator:
    Newton, Jacob A.
    Abstract:
    This research examined the potential for using peanut husk as a fiber alternative to wood in the production of melamine-formaldehyde (MF) particleboard. MF resin was used to produce panels with one, three, six, nine or 12 percent resin contents. Modulus of Rupture (MOR), Modulus of Elasticity (MOE), Internal Bond (IB)...
    Resource Type:
    Honors College Thesis
    Full Text:
    :_____________________________________________________ Jeffrey J. Morrell This research examined the potential for using peanut husk as a fiber

  • 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:
    Jeffrey J. Morrell Moisture intrusion in residential structures can lead to substantial fungal

  • Isolation of protoplasts from selected wood degrading fungi and their uses in studying fungicidal action

    Creator:
    Chen, Rui, 1963-
    Abstract:
    Studies of physiological effects of fungicides on fungi are critical for understanding modes of action and mechanism of resistance; however, studies are difficult to perform on filamentous fungi because of the inability to produce homogeneous a biological system using a mass of mycelium. Moreover, the presence of rigid cell wall...
    Resource Type:
    Masters Thesis

  • The effects of tree position and silvicultural practices on treatability of Douglas-fir lumber

    Creator:
    Hong, Seungdo
    Abstract:
    In spite of the lack of accurate information about the treatability of western wood species with waterborne wood preservatives, consumption of these products continues to increase. Western wood species, notably Douglas-fir, are notoriously difficult to treat with waterborne systems, yet there is relatively little data on the effects of wood...
    Resource Type:
    Masters Thesis
    Full Text:
    my God for sending me my major professor, Jeffrey J. Morrell and my committee who were C.J. Calder

  • 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
    Full Text:
    to my major professor Dr. Jeffrey J. Morrell for his unlimited guidance and encouragement during

  • 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
    Full Text:
    : ______________________________________________________ Jeffrey J. Morrell Copper is the most common ingredient in waterborne preservatives and

  • Supercritical fluid impregnation with biocides of wood using temperature reduction

    Creator:
    Kang, Sung-Mo
    Abstract:
    Supercritical fluid (SCF) impregnation is a promising preservative treatment method, however, the development of SCF processes has been slowed by a limited understanding of the process. Developing a better understanding of the effects of various process parameters on treatment results would allow for a more rational development of SCF impregnation....
    Resource Type:
    Dissertation
    Full Text:
    with Biocides of Wood Using Temperature Reduction. Abstract approved Jeffrey J. Morrell

  • 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
    Full Text:
    : ___________________________________ Jeffrey J. Morrell The sustainable use of wood for rail ties requires chemical

  • 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
    Full Text:
    Biocides in Potentially Copper Tolerant Soils. Abstract approved: Jeffrey J. Morrell Copper is an