Index Catalog // ScholarsArchive@OSU

Evaluation of various chemical treatments to prevent the abiotic deterioration of southern pine surfaces through outdoor screening trials

Creator:: Schauwecker, Christoph F.
Abstract:: Rapid discoloration and checking of wooden surfaces when exposed outdoors has caused wood to fall out of favor as an outdoor building material, especially in applications where appearance is important. The surface appearance of wood products exposed outdoors can be improved through the application of film forming coatings or by...
Resource Type:: Dissertation
Full Text:: through Outdoor Screening Trials Abstract approved: Jeffery J. Morrell Rapid

Interactions of the fumigant methylisothiocyanate with Douglas-fir wood and their influence on fumigant effectiveness

Creator:: Zahora, Andrew Roy
Abstract:: Experiments investigated how the fumigant methylisothiocyanate (MIT), Douglas-fir wood at various moisture contents (MC), and the wood decay fungus Poria carbonica Overh., interacted to govern overall fumigant effectiveness. MIT decomposed in wood to form non-MIT residues at rates of about 0.16%, 0.9%, and 1.6% of the total bound MIT per...
Resource Type:: Dissertation

Microfungi of preservative treated Douglas-fir poles before and after fumigant treatment

Creator:: Giron, Magdalena Y.
Abstract:: See pdf
Resource Type:: Dissertation

Inter-relationships of vegetation, hydrology and micro-climate in a young, Douglas-fir forest

Creator:: Barnard, Holly Rene
Abstract:: The links between forests, streamflow, and climate are poorly understood. Despite hundreds of studies over the past 60 years, fundamental questions of forests' effects on the hydrologic cycle remain unanswered. The hydrological cycle involves mutually-dependent biological and physical processes that operate at multiple scales of time and space, and this...
Resource Type:: Dissertation
Full Text:: -fir Forest Abstract approved: Barbara J. Bond Jeffrey J. McDonnell The links

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:: . Jeffrey J. Morrell, for his inspiring encouragement and full support from the initial phase of

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

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

Effect of nutrients on interactions between two decay fungi and Trichoderma harzianum Rifai on ponderosa pine sapwood wafers

Creator:: Canessa, Edwin
Abstract:: Small size wood assays were utilized to study the effect of added nutrients to the wood on the interactions of Trichoderma harzianum Rifai and two wood decay fungi, Trametes versicolor (white rot) and Gloeophyllum trabeum (brown rot). Weight losses related to time of exposure were monitored as a measure of...
Resource Type:: Dissertation
Full Text:: Pine Sapwood Wafers. fa (,)/2yJ. Morrell Small size wood assays were utilized to study the effect

Biology of the carpenter ants Camponotus vicinus (Mayr) and Camponotus modoc (Wheeler) in western Oregon

Creator:: Mankowski, Mark E.
Abstract:: Pest control operators in Oregon were surveyed to examine the occurrence of carpenter ants and other wood destroying organisms in structures. Carpenter ants frequently occurred in the coast and Willamette valley regions of the state and were associated with wetter, mesic habitats. To examine the effects of substrate and moisture...
Resource Type:: Dissertation

Pressure measurement in wood as a method to understand impregnation processes : conventional and supercritical carbon dioxide

Creator:: Schneider, Philip F.
Abstract:: Two approaches to improving wood treatability include the modification of pressure schedules during conventional liquid treatments and the use of supercritical fluids (SCFs). In both of these techniques, pressure differences are important for transporting materials into wood. The level of pressure and its change during SCF treatments are also important...
Resource Type:: Dissertation

ScholarsArchive@OSU

Evaluation of various chemical treatments to prevent the abiotic deterioration of southern pine surfaces through outdoor screening trials

Interactions of the fumigant methylisothiocyanate with Douglas-fir wood and their influence on fumigant effectiveness

Microfungi of preservative treated Douglas-fir poles before and after fumigant treatment

Inter-relationships of vegetation, hydrology and micro-climate in a young, Douglas-fir forest

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

Supercritical fluid impregnation with biocides of wood using temperature reduction

Modeling changes in flexural properties of softwood beams during fungal decomposition

Effect of nutrients on interactions between two decay fungi and Trichoderma harzianum Rifai on ponderosa pine sapwood wafers

Biology of the carpenter ants Camponotus vicinus (Mayr) and Camponotus modoc (Wheeler) in western Oregon

Pressure measurement in wood as a method to understand impregnation processes : conventional and supercritical carbon dioxide

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