Index Catalog // ScholarsArchive@OSU

Discrete Ordinates Radiation Transport using High-Order Finite Element Spatial Discretizations on Meshes with Curved Surfaces

Creator:: Woods, Douglas N.
Abstract:: We spatially discretize the Sn transport equation using the high-order (HO) discontinuous finite element method (DFEM) on HO meshes. Previous work provided a proof-of-concept for this spatial discretization method in X-Y geometry. Included in the present work, we derive a spatial discretization for the Sn transport equation in both X-Y...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF Douglas N. Woods for

High Order Finite Elements SN Transport in X-Y Geometry on Meshes with Curved Surfaces in the Thick Diffusion Limit

Creator:: Woods, Douglas N.
Abstract:: The high-order finite element S[subscript N] transport equations are solved on several test problems to investigate the behavior of the discretization method on meshes with curved edges in X-Y geometry. Simpler problems ensured the correct implementation of MFEM, the general fi nite element library employed. A convergence study using the...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Douglas N. Woods for the

Interactions between sodium N-methyldithiocarbamate and Douglas-fir heartwood

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:: -SODIUM N-METHYLDITHIOCARBAMATE AND DOUGLAS-FIR 137 TABLE 2. Relative yield of rnethylisothiocyanate

Controlling decay fungi in Douglas-fir heartwood with pelletized sodium n-methyldithiocarbamate

Creator:: Sexton, Camille M., Morrell, Jeffrey J., and Newbill, Mark A.
Abstract:: A small block test was used in assessing whether pelletized sodium n-methyldithiocarbamate (NaMDC) would decompose and produce methylisothiocyanate (MITC) and thereby eliminate Antrodia carbonica colonies from Douglas-fir heartwood. Also evaluated were the effects of wood moisture content, dosage, incubation period, pH level, and presence of copper sulfate on percentage of...
Resource Type:: Article
Full Text:: , sodium n-methyldithiocarbamate, wood decay, Douglas-fir, pH. INTRODUCTION Fumigants are important to

How well do American viticultural areas correspond with the soil classes in Oregon's northern Willamette Valley? A question for the wine industry

Creator:: Wood, Douglas T.
Abstract:: The specific geography of individual wine growing regions has long been understood to be a significant factor in predicting both a region’s success in producing high quality grapes, and the resulting demand for wines produced from that region's fruit. In the American wine industry, American Viticultural Areas (AVAs) are increasingly...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Douglas T. Wood for the

Methylisothiocyanate fumigant content of Douglas-fir heartwood at various moisture levels after treatment with solid sodium N-methyldithiocarbamate

Creator:: Lebow, Stan T. and Morrell, Jeffrey J.
Abstract:: The relationship between moisture content and the presence of methylisothiocyanate (MITC) in wood following various applications of sodium n-methyldithiocarbamate (NaMDC) was investigated with small Douglas-fir heartwood blocks. While MITC levels were initially higher in wetter blocks, MITC levels in drier blocks remained more stable over the 8-week test period. The...
Resource Type:: Article
Full Text:: wood following various applications of sodium n-methyldithiocarbamate (NaMDC) was investigated with

Steady-state diffusion of chloropicrin in Douglas-fir heartwood

Creator:: Peralta, Perry N. and Morrell, Jeffrey J.
Abstract:: The effects of moisture content, flow direction, concentration, and temperature on the diffusion of chloropicrin in Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) heartwood were investigated. Diffusion coefficients were strongly affected by wood moisture content. Coefficients for radial and tangential diffusion at the fiber-saturation point were twice as high as those at...
Resource Type:: Article
Full Text:: residue in chloropicrin-treated Douglas-fir. Wood Fiber Sci. 18(1): 127-1 33. HIGHLEY, T. L., AND W. E

How we live with words

Creator:: Rhoten, Karalee N.
Abstract:: The words we use to define our lives are often determined by the way we render any given moment. Every instance of writing is a moment of remembering, and a non-fiction essay gives the author free rein to unravel an instance, paint a portrait of what time has already come...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Karalee N. Rhoten for the degree

Characterization of lignocellulose decomposition in stream wood samples using ¹⁴C and ¹⁵N techniques

Creator:: Aumen, Nicholas G.
Resource Type:: Dissertation
Full Text:: stream wood samples using ¹⁴C and ¹⁵N techniques AN ABSTRACT OF THE THESIS OF Nicholas G. Aumen for

No correlation between latewood formation and leader growth in Douglas-fir saplings

Creator:: Renninger, Heidi J., Gartner, Barbara L., and Grotta, Amy T.
Abstract:: The width of earlywood and latewood in conifer xylem may have a profound effect on water transport and storage, vulnerability to embolism, and wood strength, yet the controls over the timing of latewood formation are unclear. Tracheids differentiating in the cambial zone are influenced by IAA indole-3 acetic acid, the...
Resource Type:: Article
Full Text:: growth (E) occurred in each of the Douglas-fir saplings (mean ± SE, n = 14). 0 0 0 0 0 0 0 0 0 0

ScholarsArchive@OSU

Discrete Ordinates Radiation Transport using High-Order Finite Element Spatial Discretizations on Meshes with Curved Surfaces

High Order Finite Elements SN Transport in X-Y Geometry on Meshes with Curved Surfaces in the Thick Diffusion Limit

Interactions between sodium N-methyldithiocarbamate and Douglas-fir heartwood

Controlling decay fungi in Douglas-fir heartwood with pelletized sodium n-methyldithiocarbamate

How well do American viticultural areas correspond with the soil classes in Oregon's northern Willamette Valley? A question for the wine industry

Methylisothiocyanate fumigant content of Douglas-fir heartwood at various moisture levels after treatment with solid sodium N-methyldithiocarbamate

Steady-state diffusion of chloropicrin in Douglas-fir heartwood

How we live with words

Characterization of lignocellulose decomposition in stream wood samples using ¹⁴C and ¹⁵N techniques

No correlation between latewood formation and leader growth in Douglas-fir saplings

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