Index Catalog // ScholarsArchive@OSU

Mathematical approaches to the physics of mesoscale oceanography

Creator:: Early, Jeffrey J.
Abstract:: The long-term evolution of Gaussian eddies is studied in an equivalent barotropic model using both linear and nonlinear quasi-geostrophic theory in an attempt to understand westward propagating satellite altimetry tracked mesoscale eddies. By examining both individual eddies and a large basin seeded with eddies, it is shown that long term...
Resource Type:: Dissertation
Full Text:: 1 AN ABSTRACT OF THE DISSERTATION OF Jeffrey J. Early for the

Patterns of fungal attack in wood-plastic composites following exposure in a soil block test

Creator:: Mankowski, Mark and Morrell, Jeffrey J.
Abstract:: The ability of white and brown rot fungi to colonize wood-plastic composites was investigated by measuring weight loss and anatomical changes. Three composite materials were evaluated. The material containing a 70/30 wood-high density polyethylene (HDPE) mixture was most susceptible to fungal attack, while two different 50/50 wood-HDPE composites experienced little...
Resource Type:: Article
Full Text:: for a plastic-wood composite. Proc. Am. Wood-Preserv. Assoc. 89: 108-109 (Abstract). SIMONSEN, W. J

Copper, chromium, and arsenic levels in soils surrounding posts treated with chromated copper arsenate (CCA)

Creator:: Morrell, Jeffrey J. and Huffman, Jacob
Abstract:: The levels of copper, chromium, and arsenic in soil surrounding CCA-treated posts and beneath CCA-treated stakes were investigated at a plot near Gainesville, Florida. Metal levels were elevated in soil immediately adjacent to the treated wood, but decreased with distance away or depth. Mean extractable arsenic levels ranged from 1.74...
Resource Type:: Article
Full Text:: SURROUNDING POSTS TREATED WITH CHROMATED COPPER ARSENATE (CCA) Jeffrey J. Morrell† Professor Department of

Potential for using through-boring to improve groundline treatment of Australian wood species: A preliminary study

Creator:: Morrell, Jeffrey J. and Norton, Jack
Abstract:: An aging electricity distribution system and reduced availability of naturally durable tropical hardwoods in Australia will combine in the next decade to produce a major shortage of poles. One approach to mitigating this shortage is to utilize lower durability species and improve the penetration of preservatives into the refractory heartwood...
Resource Type:: Article
Full Text:: Products Society 2009. Forest Prod. J. 59(9):61–66. FOREST PRODUCTS JOURNAL VOL. 59, NO. 9 61 et al

The Oregon 4-H helmet policy: what do I need to know? [2000]

Creator:: Jeffreys, J. Bradford and Hart, Douglas A.
Abstract:: Revised January 1996. Reprinted July 2000 (with author information updated). Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Resource Type:: Learning Object
Full Text:: . Jeffreys and DA. Hart ^T^J 6^6^p Horseback riding has one of the highest injury rates of all

In-situ measurement of dimensional changes during supercritical fluid impregnation of white spruce lumber

Creator:: Kim, Gyu Hyeok and Morrell, Jeffrey J.
Abstract:: Supercritical fluids can markedly enhance preservative treatment of wood, but the high pressures employed can lead to collapse. We investigated the effects of the rates of pressure application and release on displacement of white spruce lumber during supercritical impregnation with carbon dioxide. Displacement was greatest when pressure was rapidly increased...
Resource Type:: Article
Full Text:: values. These tests indicated a tendency for samples to undergo maximum displacement early in the

Durability of a changing western redcedar resource

Creator:: Freitag, Camille M. and Morrell, Jeffrey J.
Abstract:: The heartwood of western redcedar (Thuja plicuta) is known for its natural resistance to fungal attack, but some users of western redcedar utility poles have suggested that its durability may be diminished as suppliers begin to harvest trees from younger stands. The decay resistance of western redcedar samples from the...
Resource Type:: Article
Full Text:: Camille M. Freitag Senior Research Associate and Jeffrey J. Morrell'f Associate Professor

Nutritional Quality of Douglas-fir Wood: Effect of Vertical and Horizontal Position on Nutrient Levels

Creator:: Schowalter, Timothy D. and Morrell, Jeffrey J.
Abstract:: The chemical composition of the boles of 14 Douglas-fir trees growing in the central Willamette Valley of western Oregon was examined to determine whether differences in various chemical component levels might help to explain arthropod or microbial colonization patterns. Levels of nearly all cations as well as N and P...
Resource Type:: Article
Full Text:: Entomology Oregon State University Corvallis. OR 9733 1 and Jeffrey J. Morrell? Professor

Abrupt changes in atmospheric methane at the MIS 5b–5a transition

Creator:: Grachev, Alexi M., Brook, Edward J., and Severinghaus, Jeffrey P.
Abstract:: New ice core analyses show that the prominent rise in atmospheric methane concentration at Dansgaard-Oeschger event 21 was interrupted by a century-long 20% decline, which was previously unrecognized. The reversal was found in a new ∼100-year resolution study of methane in the GISP2 ice core, encompassing the beginning of D-O...
Resource Type:: Article
Full Text:: 5b–5a transition Alexi M. Grachev,1 Edward J. Brook,1 and Jeffrey P. Severinghaus2 Received 24

Preservative treatment of Scots pine and Norway spruce

Creator:: Rhatigan, Ron, Freitag, Camille, El-Kasmi, Silham, and Morrell, Jeffrey J.
Abstract:: The ability to treat Scots pine (Pinus sylvestris) and Norway spruce (Picea abies) with oilborne copper-8-quinolinolate or with waterborne chromated copper arsenate, ammoniacal copper zinc arsenate, or ammoniacal copper quaternary was assessed using commercial treatment facilities in the Pacific Northwest. In general, Scots pine was more easily treated than was...
Resource Type:: Article
Full Text:: Norway spruce Ron Rhatigan Camille Freitag Silham El-Kasmi Jeffrey J. Morrell✳ he past decade has

ScholarsArchive@OSU

Mathematical approaches to the physics of mesoscale oceanography

Patterns of fungal attack in wood-plastic composites following exposure in a soil block test

Copper, chromium, and arsenic levels in soils surrounding posts treated with chromated copper arsenate (CCA)

Potential for using through-boring to improve groundline treatment of Australian wood species: A preliminary study

The Oregon 4-H helmet policy: what do I need to know? [2000]

In-situ measurement of dimensional changes during supercritical fluid impregnation of white spruce lumber

Durability of a changing western redcedar resource

Nutritional Quality of Douglas-fir Wood: Effect of Vertical and Horizontal Position on Nutrient Levels

Abrupt changes in atmospheric methane at the MIS 5b–5a transition

Preservative treatment of Scots pine and Norway spruce

Limit your search

Academic Affiliation

Advisor

Commencement Year

Committee Member

Conference Name

Creator

Date

Decade

Degree Field

Degree Level

Degree Name

File Format

Language

License

Non-Academic Affiliation

Peer Reviewed

Resource Type

Rights Statement

Subject

Search Constraints

Search Results

Limit your search