Index Catalog // ScholarsArchive@OSU

Hydrology and delineation in four wetlands in the Oregon Cascades

Creator:: MacLeod, Norman A.
Abstract:: Four wetland sites were identified and delineated in Silver Falls State Park, Oregon using procedures outlined in the 1989 Federal Manual for the Identification and Delineation of Jurisdictional Wetlands and subsequently monitored for a ten month period. A network of 225 shallow (32") wells was installed throughout the sites to...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Norman A. MacLeod for the

Distribution of Ceratomyxa shasta (Myxozoa) and habitat preference of the polychaete host, Manayunkia speciosa in the Klamath River

Creator:: Stocking, Richard W.
Abstract:: Ceratomyxa shasta is a myxozoan parasite of salmonids and requires the freshwater polychaete, Manayunkia speciosa to complete its life cycle. The parasite’s distribution is currently limited to the Pacific Northwest region of North America and has been reported to cause substantial losses of both wild and hatchery salmonids. The spatial...
Resource Type:: Masters Thesis
Full Text:: Richard W. Stocking for the degree of Master of Science in Microbiology presented on February 23, 2006

Leukemia incidence and benzene air pollution in Portland Oregon

Creator:: Voss, Robert W.
Abstract:: Benzene is a widespread urban pollutant and monitoring results show concentrations are particularly high in Portland, Oregon. Nationally, benzene air pollution is the largest contributor to total cancer risk from air pollutants. We used data from several data sets including: modeled benzene distribution at the census block group level from...
Resource Type:: Masters Thesis
Full Text:: THESIS OF Robert W. Voss for the degree of Master of Science in Environmental Health and

Effect of plant date on subsequent seedling field performance

Creator:: Taylor, Michael Monroe
Abstract:: Douglas-fir (Psudotsuga menziesii (Mirb.) Franco) seedlings were outplanted on eight dates (every three weeks from mid-August 2005 through mid-January 2006). On each plant date, seedlings from a conventional dormancy (CONV) induction treatment, including moisture and nutrient stress, and a shortened daylength (SD) treatment were outplanted on three western Oregon sites...
Resource Type:: Masters Thesis
Full Text:: . Abstract approved ____________________________________________________________________ Robert W. Rose

Variation in communities of ammonia-oxidizing and denitrifying bacteria in Fennoscandian boreal forest soils

Creator:: Ghimire, Rama D.
Abstract:: The objective of this study was to examine the variation among ammonia-oxidizing and denitrifying communities in soils of a natural Fennoscandian boreal forest and of a forest with a long history of fertilization with different levels of nitrogen (N), and to examine whether there are any changes in the microbial...
Resource Type:: Masters Thesis
Full Text:: . Abstract approved: David D. Myrold The objective of this study was to examine the

A comparison of measured and simulated exposure rates near tungsten-based medical transport pigs

Creator:: Newman, Errol D. I.
Abstract:: A lack of data concerning tungsten-based medical shields, specifically unit dose transport pigs, may lead to unnecessary exposure to medical personnel. Available research comparing lead to sintered tungsten shows that tungsten is approximately 1.5 - 10.0 times more effective as a radiation shield. However, this research lacks high-energy vs. low-energy...
Resource Type:: Masters Thesis
Full Text:: David M. Hamby A lack of data concerning tungsten-based medical shields, specifically unit dose

Do vigorous young forests reduce streamflow? Results from up to 54 years of streamflow records in eight paired-watershed experiments in the H. J. Andrews and South Umpqua Experimental Forests

Creator:: Perry, Timothy D.
Abstract:: This study quantified the magnitude and timing of summer streamflow deficits in paired-watershed experiments in the Cascade Range of Oregon where mature and old-growth conifer forests were subjected to clearcutting, patch cutting, and overstory thinning treatments in the 1960s and 1970s. Hydrologic effects of clearcutting, small-patch cutting, and overstory thinning...
Resource Type:: Masters Thesis
Full Text:: OF THE THESIS OF Timothy D. Perry for the degree of Master of Science in Geography presented

Comparison of MODIS binary and fractional snow cover mapping techniques in the Himalayan Region, Nepal

Creator:: Tuladhar, Preeti
Abstract:: Satellite remote sensing is an effective tool for mapping snow covered area. However, complex terrain and heterogeneous land cover, due to vegetation and patchy snow cover, present challenges to snow cover mapping. This research compares two techniques for mapping snow covered area: binary and enhanced fractional snow cover mapping techniques....
Resource Type:: Capstone Project
Full Text:: ho w n in th e M O D IS tr ue c ol or , th e bi na ry SC A a nd th e M O

Microwave extraction of peppermint oil and comparison to the currentpractice of steam extraction

Creator:: Velasco, Carmen A.
Abstract:: The increase of diesel fuels and natural gas has increased the energy cost of the mint oil extraction industry in the Willamette Valley. In this study the energy evaluation of a distillation facility in Oregon is considered. Solvent free microwave extraction of peppermint oil is introduced as a new technique...
Resource Type:: Masters Thesis
Full Text:: . 8 Germacrene-d, Terpenen-4-ol and Furan Composition(1120 W)......................... 64 6. 9

A probabilistic model for anomaly detection in remote sensor streams

Creator:: Dereszynski, Ethan W.
Abstract:: Remote sensors are becoming the standard for observing and recording ecological data in the field. Such sensors can record data at fine temporal resolutions, and they can operate under extreme conditions prohibitive to human access. Unfortunately, sensor data streams exhibit many kinds of errors ranging from corrupt communications to partial...
Resource Type:: Masters Thesis
Full Text:: distribution ∆ ∼ N ( µqh,d + w∆t−1, σ 2 qh,d ) . The Markov process allows the ∆ distribution to “wander

ScholarsArchive@OSU

Hydrology and delineation in four wetlands in the Oregon Cascades

Distribution of Ceratomyxa shasta (Myxozoa) and habitat preference of the polychaete host, Manayunkia speciosa in the Klamath River

Leukemia incidence and benzene air pollution in Portland Oregon

Effect of plant date on subsequent seedling field performance

Variation in communities of ammonia-oxidizing and denitrifying bacteria in Fennoscandian boreal forest soils

A comparison of measured and simulated exposure rates near tungsten-based medical transport pigs

Do vigorous young forests reduce streamflow? Results from up to 54 years of streamflow records in eight paired-watershed experiments in the H. J. Andrews and South Umpqua Experimental Forests

Comparison of MODIS binary and fractional snow cover mapping techniques in the Himalayan Region, Nepal

Microwave extraction of peppermint oil and comparison to the currentpractice of steam extraction

A probabilistic model for anomaly detection in remote sensor streams

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