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ScholarsArchive at Oregon State University
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Analysis of topographic and river morphometric parameters was conducted using digital elevation models (DEMs) and field observations in order to determine the role of variable rock resistance on topographic relief, to examine how spatially and...
2002-11-19 (iso8601)
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The purpose of this project was to isolate gabosines and other compounds through chemical screening of secondary metabolites of Streptomyces cellulosae subsp. griseorubiginoses strain S1096. Two different media were used to cultivate S....
2008-07-14T17:20:02Z (iso8601)
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The current proliferation of portable electronic devices for personal
communication, business and entertainment has created a demand for high energy density
power supplies. A hydrocarbon fuel with a conversion efficiency of over
15% can provide...
2008-07-30T23:04:38Z (iso8601)
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In many composites, fiber bridging develops as part of the fracture process. Fiber bridging invalidates many toughness evaluation methods such as the ASTM E399 and complicates the identification of crack length, which is a necessary parameter in...
2008-07-16T20:38:47Z (iso8601)
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Alpha acids are found in the lupulin glands of hops cones. These acids have no bitterness of their own, but can be isomerized and subsequently hydrogenated to form bitter iso-α-acids and tetrahydroiso-α-acids respectively. Current literature...
2008-06-20 (iso8601)
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The present thesis chemically examined 174 industrial North Staffordshire pottery fragments from an archaeological context, using Instrumental Neutron Activation Analysis (INAA). In an integrated effort to combine an archaeometric approach with...
2008-06-17 (iso8601)
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In this study I discuss the state of Free-Choice Learning research, and an investigation into the use of personal ubiquitous technology on visitors' experiences at a science center. The three manuscripts included in this document:
1. Review...
2008-07-16T18:07:30Z (iso8601)
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This study examines the long-term role of interference on stand development of Douglas-fir (Pseudotsuga menziesii [Mirb.] Franco) and red alder (Alnus rubra Bong.) planted mixtures in the Central Cascades of Oregon, USA. The two species are...
2008-07-14T21:06:48Z (iso8601)
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The intent of this work is to extend Implicit Monte Carlo Diffusion (IMD)[Gen.
2001] to account for frequency dependence and to incorporate the difference formulation[Szo. 2005] as a source manipulation variance reduction technique. This
work...
2008-08-20T19:59:45Z (iso8601)
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The functioning of marine habitats needs to be understood in the context of the ecological relationships and associations between organisms and the physical and biogenic environment they inhabit. Thus, it becomes important to explore and define...
2008-07-11T20:32:18Z (iso8601)
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Since the eruption of Mount St. Helens on May 18,1980, the rural communities within its shadow have experienced tremendous change. Tourism has become a highly visible and somewhat controversial component of change in the region, and its importance...
1993-07-21 (iso8601)
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The inherent and apparent optical properties of different ocean regimes are the basis for all optical remote sensing of the ocean. Ecological information derived from remote sensors therefore relies on having a detailed understanding of how...
2008-06-05 (iso8601)
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The navigability of the Columbia river permits Portland, located more than 100 miles inland from the Pacific Ocean, to function as the major port of the state of Oregon. It could be expected that the waterfront spanning the greatest share of the...
1975-05-02 (iso8601)
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The ever changing nature of the retail industry, and the additional challenges of doing business in a rural area, mean that retailers in rural communities face a unique situation that makes them especially vulnerable to outshopping by rural...
2008-07-16T20:04:33Z (iso8601)
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Two-phase gas-liquid flows in microscale fractal-like branching channel flow networks were experimentally studied to assess the validity of existing void fraction correlations and flow regimes based on superficial gas and liquid velocities. Void...
2008-07-21T23:10:01Z (iso8601)
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This research proposes a Human Fallibility Identification and Remediation Methodology (HFIRM) that supports the systematic identification and remediation of potential human errors. The objective of this research was to develop and test a prototype...
2008-06-06 (iso8601)
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Del.icio.us, a well-known social bookmarking tool, is being used by several librarians at Oregon State University (OSU) Libraries to enhance access to web resources suggested on their subject research guides (SRGs). The Geosciences and...
2008-07-14T17:12:58Z (iso8601)
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This dissertation arose out of an awareness of difficulties undergraduate linear algebra students encounter when solving linear algebra problems from novel, non-isomorphic settings, even when the problems could be solved with matrix...
2008-07-21T23:01:39Z (iso8601)
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This study examined the social and contextual factors that lead to differences in
the way biracial adolescents interpret their racial identity. Using 11 interviews with a sample of biracial youth between the ages of 14 and 17-years-old, this study...
2008-07-25T20:18:24Z (iso8601)
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A new era for partnerships between the US land grant university community and the US Agency for International Development began when Title XII legislation was enacted by the US Congress in 1975. Collaborative Research Support Programs emerged as...
1998-02-19 (iso8601)
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Stream management and design recommendations related to the Salmon Habitat Recovery Program in the Pacific Northwest require area specific information concerning appropriate methods of stream classification, bankfull discharge recurrence...
1997-01-17 (iso8601)
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The main theme of this research is the application of geographic techniques in a study involving environmental monitoring and analysis of the associations between landscape and in-stream characteristics in the Pacific Northwest. The geographic...
1997-09-15 (iso8601)
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Nehalem Bay is located on the northern coast of Oregon in Tillamook County and contains approximately 243 ha of salt marsh. The Nehalem marshes occur as islands and land-tied units. West Island is the largest marsh island with an area of 82.9 ha...
1974-11-16 (iso8601)
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The purpose of this research was to develop methods for using geographic information system (GIS) analysis and unsupervised classification of Global Vegetation Index (GVI) images to improve carbon budget estimates of the former Soviet Union (FSU)....
1993-07-13 (iso8601)
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Common resources are those for which rights to use, access and management have not been assigned. Common resources are frequently subject to over-exploitation, a phenomenon frequently referred to as the "tragedy of the commons," and solutions to...
2002-02-15 (iso8601)
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