Index Catalog // ScholarsArchive@OSU

Dissolved nitrogen in surface waters and nitrogen mineralization in riparian soils within a multi-land use basin

Creator:: Evans, Daniel M.
Abstract:: The growing population of Oregon’s Willamette River Basin places an increasing demand on the basin’s surface waters. Watershed-scale research addressing spatial trends of dissolved nitrogen (DN) and its relationship with landuse and soil N dynamics, such as N mineralization, is sparse in the Willamette Basin. I measured DN along 124...
Resource Type:: Masters Thesis
Full Text:: members, Dr. Parker J. Wigington , Dr. Stephen M. Griffith and Dr. George Mueller- Warrant for helping me

Water quality of runoff from flood irrigated pasture in the Klamath Basin, Oregon

Creator:: Ciotti, Damion C.
Abstract:: Runoff from agricultural lands into Upper Klamath Basin rivers and lakes can cause water quality problems affecting fish and wildlife. Excessive eutrophication in Upper Klamath Lake is linked to high nutrient input (particularly phosphorus) stemming from both lake sediments and watershed tributaries. On a unit area load basis the Wood...
Resource Type:: Masters Thesis
Full Text:: , support and interest and assistance with field work and funding. Dr Stephen Griffith from the USDA

Selenium measurement in ground water and biological material by instrumental neutron activation analysis

Creator:: Yousef, Samir
Abstract:: The utilization of ⁷⁷ [superscript m] Se, half life 17.5 s, and ⁷⁵ Se, half life 119.8 d, for quantification of trace amounts of Se in well water and biological materials by means of instrumental neutron activation analysis (INAA) is described. A Se detection limit of 0.03 ppm was achieved...
Resource Type:: Masters Thesis
Full Text:: approved by : Redacted for privacy Jack F. Higginbotham The utilization of 77 m Se, half life 17.5 s, and

Seasonal relationships between dissolved nitrogen and landuse/landcover and soil drainage at multiple spatial scales in the Calapooia Watershed, Oregon

Creator:: Floyd, William C.
Abstract:: The Calapooia River, a major tributary of the Willamette River in western Oregon, is a watershed typical of many found in the Willamette Basin. Public and private forested lands occur in the steep Upper Zone of the watershed, mixed forest and agriculture lands are found in the Middle Zone, and...
Resource Type:: Masters Thesis
Full Text:: continue my development as a scientist. The other members of my committee, Dr. Stephen Griffith and Dr

Quantification of fructose equivalents in straw extracts

Creator:: Kim, Eugene
Abstract:: Cereal and commercial grass-seed straws are abundant plant biomass materials that are currently being considered for application in industrial processes aimed at the production of biofuels, biomaterials, and biochemicals. The carbohydrate fraction of these straws is of particular interest in this context due to its chemical functionality and relative ease...
Resource Type:: Masters Thesis
Full Text:: thesis. I also thank my committee members (Dr. Arp, Dr Griffith, and Dr. Goddik) and special thanks to

Nature of the inheritance of gluten strength and carotenoid pigment content in winter by spring and durum wheat crosses (Triticum turgidum L. Var. durum)

Creator:: Ammar, Karim
Abstract:: Durum wheat cultivars for North-Eastern Oregon have to be competitive in terms of their yield potential with soft white winter wheat cultivars and meet strict quality requirements of the milling industry. Combining the high yield potential of fall planted durum wheat cultivars which have an acceptable level of winter hardiness...
Resource Type:: Masters Thesis
Full Text:: and enjoyable learning experience. I would like to express my sincere appreciation to Dr Patrick M

Internal charge-phosphor field analysis, electrical characterization, and aging studies of AC thin-film electroluminescent devices

Creator:: Abu-Dayah, Ahmad I.
Resource Type:: Masters Thesis
Full Text:: encouragement. I would like to thank Professors S. M. Goodnick, A. Weisshar, and David Griffiths for serving

Factors Influencing Growth and Bioenergetics of Fish in Forested Headwater Streams Downstream of Forest Harvest

Creator:: Jensen, Leslie R.
Abstract:: In this study, we used a combination of conventional statistical analyses and mechanistic bioenergetics models to understand the potential effects of environmental variability on growth of stream-living fishes in four headwater streams subject to upstream forest harvest. We focused on two common fish consumers in headwater streams in the Pacific...
Resource Type:: Masters Thesis
Full Text:: never-ending patience. I would also like to thank my other committee members, Lisa Ganio and Stephen

High accuracy CMOS switched-current ladder filters

Creator:: Hoei, Jung-sheng
Abstract:: Clock-feedthrough effects, channel-length modulation and device mismatch are the main causes of the inaccuracy of Switched-Current (SI) circuits. In this paper, these non-ideal effects are analyzed. A high-performance current mirror, namely regulated cascode current mirror, which eliminates drain voltage variation problem is introduced. By using this current mirror as a...
Resource Type:: Masters Thesis
Full Text:: to thank my graduate committee members, Drs. Stephen M. Goodnick, Roy Rathja, and Donald Pierce for

Road networks, timber harvest, and the spread of Phytophthora root rot infestations of Port-Orford-cedar in southwest Oregon

Creator:: Clark, William C.
Abstract:: Phytophthora lateralis is the causal agent of cedar root rot, a fatal forest pathogen whose principal host is Chamaecyparis lawsoniana (Port-Orford-cedar), a predominantly riparian-restricted endemic tree species of ecological, economical, and cultural importance to coastal Oregon and California. Local scale distribution of P. lateralis is thought to be associated with...
Resource Type:: Masters Thesis

ScholarsArchive@OSU

Dissolved nitrogen in surface waters and nitrogen mineralization in riparian soils within a multi-land use basin

Water quality of runoff from flood irrigated pasture in the Klamath Basin, Oregon

Selenium measurement in ground water and biological material by instrumental neutron activation analysis

Seasonal relationships between dissolved nitrogen and landuse/landcover and soil drainage at multiple spatial scales in the Calapooia Watershed, Oregon

Quantification of fructose equivalents in straw extracts

Nature of the inheritance of gluten strength and carotenoid pigment content in winter by spring and durum wheat crosses (Triticum turgidum L. Var. durum)

Internal charge-phosphor field analysis, electrical characterization, and aging studies of AC thin-film electroluminescent devices

Factors Influencing Growth and Bioenergetics of Fish in Forested Headwater Streams Downstream of Forest Harvest

High accuracy CMOS switched-current ladder filters

Road networks, timber harvest, and the spread of Phytophthora root rot infestations of Port-Orford-cedar in southwest Oregon

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