Index Catalog // ScholarsArchive@OSU

Evaporative heat loss of the upper Middle Fork of the John Day River, northeastern Oregon

Creator:: Benner, David A.
Abstract:: Evaporation was studied along the Middle Fork of the John Day River in northeastern Oregon. Evaporation pans and various meteorological sensors recorded data at nine sites during the summer of 1998; measurements were made at each site over a 3-4 day period. A Dalton-type evaporation model was produced using water...
Resource Type:: Masters Thesis

MCNP benchmarking and analysis of Oregon State University TRIGA Reactor

Creator:: Merritt, Patrick A.
Resource Type:: Masters Thesis

Anthocyanin pigment, nonvolatile acid and sugar composition of blackberries

Creator:: Fan-Chiang, Ho-ju
Abstract:: The pigments of blackberry fruit were investigated by analytical and preparative high performance liquid chromatography (HPLC) to characterize anthocyanin patterns in commercially important blackberry (Rubus eubatus) cultivars and selections. Five anthocyanin pigments were detected in Evergreen blackberry and they were identified as cyanidin-3-glucoside, cyanidin-3-rutinoside, pentosecyanidin derivative and two acylated cyanidin...
Resource Type:: Masters Thesis

The impact of extended fisheries jurisdiction on global fishery markets : the case of Alaska pollock from the U.S. West Coast

Creator:: Gancho, Paula
Abstract:: The increased US domestic production of surimi from the US Pacific Coast after 1977 is a major consequence of the US's extended fisheries jurisdiction to 200 nautical miles. It is only one consequence, however, whose nature can best be understood by examining the surimi market in the context of what...
Resource Type:: Masters Thesis

Standing crop dynamics and productive potential of southwestern Oregon rangelands

Creator:: White, G. R.
Resource Type:: Masters Thesis

Architectural support for multithreading on a 4-way multiprocessor

Creator:: Kim, Gwang-Myung
Abstract:: The microprocessors will have more than a billion logic transistors on a single chip in the near future. Several alternatives have been suggested for obtaining highest performance with billion-transistor chips. To achieve the highest performance possible, an on-chip multiprocessor will become one promising alternative to the current superscalar microprocessor. It...
Resource Type:: Masters Thesis

Long-term effects of tillage, nitrogen, and rainfall on winter wheat yields

Creator:: Camara, Kelli Marie
Abstract:: Winter wheat is commonly grown in dryland cropping systems in the Pacific Northwest region of semi-arid eastern Oregon. For agronomic, economic, and environmental reasons, it is important to understand the long-term sustainability of such dryland systems. The objective of this study was to evaluate the long-term effects of tillage, nitrogen...
Resource Type:: Masters Thesis

Annual bluegrass (Poa annua L.) emergence under different residue management practices in perennial ryegrass and determination of resistant and susceptible annual bluegrass germination under controlled temperature and moisture

Creator:: Schuster, Matthew D.
Abstract:: With the loss of field burning the amount of crop residue that remains in perennial ryegrass fields has increased. As the amount of crop residue remaining in the field increases so does annual bluegrass. This has resulted in the increased use of herbicides to control annual bluegrass. However, this increased...
Resource Type:: Masters Thesis

A simulation and architectural study of TCP/IP

Creator:: Becker, Bridget A.
Abstract:: This paper discusses current network technologies and protocols and presents a simulation study of the most common networking protocol used today, TCP/IP. The TCP/IP protocol stack has many inherent problems that will be shown through this simulation study. Using the SimpleScalar Toolset, the significance of the data copying and checksumming...
Resource Type:: Masters Thesis

Genetic engineering of disease resistance in poplar : effects of bacterio-opsin over-expression and analysis of a copper-based system for resistance-gene activation

Creator:: Mohamed, Rozi
Abstract:: We tested a synthetic bacterio-opsin (bO) gene derived from Halobacterium halobium for its effect on disease resistance in transgenic poplar hybrids, and assessed a genetic system for controlling expression of this gene. In tobacco the bO gene caused necrotic lesions similar to an induced hypersensitive response (HR), increased levels of...
Resource Type:: Masters Thesis

Control of Lepidium latifolium and restoration of native grasses

Creator:: Laws, Margaret S.
Abstract:: Lepidium latifolium L. (perennial pepperweed, LEPLA) is an exotic invader throughout western North America. At Malheur National Wildlife Refuge (MNWR) in southeast Oregon, it has invaded about 10% of meadow habitats that are important for wildlife. This study's objective was to determine the most effective and least environmentally harmful treatment...
Resource Type:: Masters Thesis

Effect of a broccoli green manure, soil solarization, and isolates of Verticillium dahliae on Verticillium wilt of agronomic and nursery crops

Creator:: Berlanger, Ingrid E.
Abstract:: Green manures, soil solarization, and long rotations with crops not susceptible to Verticillium wilt are among the disease management tactics currently under investigation as alternatives to chemical fumigation of soil. The effect of a broccoli green manure on soil microsclerotial populations of three isolates of Verticillium dahliae and on Verticillium...
Resource Type:: Masters Thesis

Learning classification rules by randomized iterative local search

Creator:: Chisholm, Michael (Michael Andrew), 1974-
Abstract:: Learning easily understandable decision rules from examples is one of the classic problems in machine learning. Most learning algorithms for this problem employ some variation of a greedy separate-and-conquer algorithm. In this paper, we describe a system called LERILS that learns highly accurate and comprehensible rules from examples using a...
Resource Type:: Masters Thesis

Low molecular weight organic acids in forest soils

Creator:: Hayden, John
Abstract:: Two studies concerning low molecular weight organic acids in soils were conducted. In the first study, anion exclusion chromatography was used to separate and identify 12 common organic acids, and the accuracy, precision and detection limits of the method were determined. The method was found to be sensitive and accurate...
Resource Type:: Masters Thesis

Low power, high performance pseudo-static D flip-flop

Creator:: Low, Tim D.
Abstract:: Digital systems, in particular microprocessor, have recently experienced phenomena growth in performance. Both technology advancement and clever design have sustained this performance growth. As clock frequency heads into the Ghz range, new circuit design, for both logic and storage, are needed. Such new circuit technology must provide needed performance with...
Resource Type:: Masters Thesis

Systematics of the genus Ramaria inferred from nuclear large subunit and mitochondrial small subunit ribosomal DNA sequences

Creator:: Humpert, Andrea J.
Abstract:: Ramaria is a genus of epigeous fungi common to the coniferous forests of the Pacific Northwest of North America. The extensively branched basidiocarps and the positive chemical reaction of the context in ferric sulfate are distinguishing characteristics of the genus. The genus is estimated to contain between 200-300 species and...
Resource Type:: Masters Thesis

Effects of sheep grazing to control weeds in a pine plantation on weed reproductive success, trees and sheep performance

Creator:: Milliman, Lisa J.
Abstract:: Use of sheep to control weeds in a ryegrass-white clover pasture in which Knob Cone-Monterrey hybrid pine trees had been planted was investigated in Corvallis, Oregon during 1997-1998. Treatments consisted of an ungrazed control (C) and grazing applications to achieve 25 (L), 50 (M) or 75 (H) percent utilization of...
Resource Type:: Masters Thesis

Use of the Combined Index, a hazard screening tool, to target for pollution prevention in the State of Oregon

Creator:: Code, Aimee
Abstract:: The purpose of this study was to apply the Combined Index (Con, a hazard screening tool, developed by Dr. Debra Forman of EPA Region III Office of Air Radiation and Toxics Division, to the 1994 and 1995 Oregon Toxic Chemical Release Inventory (TRI) for pollution prevention and facility targeting analysis....
Resource Type:: Masters Thesis

Physiology and genetics of drought hardiness in coastal Douglas-fir (Pseudotsuga menziesii var. menziesii (Mirb.) Franco) seedlings

Creator:: Lomas, M. Christine
Abstract:: Physiology and genetics of drought hardiness were investigated in two-year-old coastal Douglas-fir seedlings from 39 full-sib families obtained from coastal British Columbia and grown at Oregon State University, Corvallis, Oregon. The seedlings were subjected to three drought treatments (control, moderate, and severe drought) in their second growing season (June through...
Resource Type:: Masters Thesis

Effects of saponin-containing extracts on fat digestibility, growth, and nutrient availability in domestic fowl

Creator:: Hix, Rebecca J.
Abstract:: Numerous properties of Yucca schidigera and Quillaja saponaria have been studied with respect to the saponins in the plant. These saponins are present in the extract as well and have been utilized commercially in the food and cosmetic industry for various products. Saponins have detergent-like properties in the presence of...
Resource Type:: Masters Thesis

Sub-regional detention siting : a methodology using GIS

Creator:: Murdock, Carol L.
Abstract:: The Mt. Scott watershed in northern Clackamas County, Oregon is an urban watershed that lies inside the Portland metropolitan urban growth boundary. Urbanization of the watershed began in the early 1970s and has recently accelerated. A landscape level analysis of the urbanization process was combined with the results of a...
Resource Type:: Masters Thesis

Effects of diet on growth and development of nesting seabirds

Creator:: Romano, Marc D.
Abstract:: Recent declines in nesting success of some fish-eating seabirds in Alaska have been attributed to declines in availability of certain schooling forage fishes (e.g., capelin Mallotus villosus, Pacific sand lance Ammodytes hexapterus, and Pacific herring Clupea harengus pallasi). These fishes tend to have high lipid content compared with other species...
Resource Type:: Masters Thesis

Abundance and habitat associations of Washington ground squirrels in north-central Oregon

Creator:: Greene, Eric
Abstract:: Much of the Columbia River Basin has been cultivated for agriculture, which has reduced and fragmented the native shrub-steppe habitats. As a result, the range of the Washington ground squirrel (Spermophilus washingtoni) has been significantly reduced, prompting the states of Washington and Oregon to review their status. Consequently, I investigated...
Resource Type:: Masters Thesis

Local and area-averaged momentum fluxes

Creator:: Nakamura, Reina
Resource Type:: Masters Thesis

Low frequency noise and the upconverted phase noise effects in NMOSFET circuits

Creator:: Xie, Dingming
Resource Type:: Masters Thesis

Habitat segregation of two ambystomatids in mountain ponds, Mount Rainier National Park

Creator:: Brokes, Brendan J.
Abstract:: Ambystoma macrodactylum (long-toed salamander) and A. gracile (northwestern salamander) are two common salamander species occupying key trophic positions in mountain ponds of Mount Rainier National Park. The objective of this research was to document and evaluate the distributions and abundances of the two species, relative to habitat characteristics of ponds...
Resource Type:: Masters Thesis

Mycorrhizal status of post-fire Pezizales

Creator:: Fujimura, Kei E.
Abstract:: Post-fire Pezizales often fruit seasonally approximately six weeks after a fire in successional groups over the course of two years. Two methods, pure culture synthesis and PCR-based identification, were used to determine if some of these species were mycorrhizal. Eleven fungal isolates, Anthracobia melaloma, Gyromitra infula, Helvella compressa, Morchella sp.,...
Resource Type:: Masters Thesis

Preliminary investigation of artificial incubation of emu eggs, and alternative feeds and management techniques for emu chicks up to ten weeks of age

Creator:: Allen, Carol Ann
Abstract:: A preliminary study was conducted to establish baseline data for emu artificial egg incubation and emu chick growth and management. Three experiments examined factors affecting hatchability of emu eggs that occur prior to and during artificial incubation. Characteristics analyzed were egg storage duration, hen age, egg weight, egg index, shell...
Resource Type:: Masters Thesis

An epifluorescence method for assessing viability of bacteria in soil aggregates

Creator:: Shiozawa, Tracy L.
Resource Type:: Masters Thesis

Content-based color image retrieval

Creator:: Varanguien de Villepin, Audrey
Abstract:: A fully automated method for content-based color image retrieval is developed to extract color and shape content of an image. A color segmentation algorithm based on the k-mean clustering algorithm is used and a saturated distance is proposed to discriminate between two color points in the HSV color space. The...
Resource Type:: Masters Thesis

Spectral integration and the numerical solution of two-point boundary value problems

Creator:: Norris, Gordon F.
Abstract:: Spectral integration methods have been introduced for constant-coefficient two-point boundary value problems by Greengard, and pseudospectral integration methods for Volterra integral equations have been investigated by Kauthen. This thesis presents an approach to variable-coefficient two-point boundary value problems which employs pseudospectral integration methods to solve an equivalent integral equation. This...
Resource Type:: Masters Thesis

Winter wheat response to nitrogen, phosphorus, sulfur, and zinc supplied by municipal biosolids

Creator:: Shearin, Todd E.
Resource Type:: Masters Thesis

Evaluating the efficiency of the Washington State Ferry routes using data envelopment analysis

Creator:: Owen, Alyce L.
Abstract:: This paper uses data envelopment analysis (DEA) to examine the relative technical efficiency of the Washington State Ferry (WSF) routes operating in Puget Sound. This is the largest ferry system in the country. It is publicly operated and does not face direct competition from any other agency, public or private....
Resource Type:: Masters Thesis

Evidence for a stepwise mechanism in the cycloreversion of rhenium diolates

Creator:: Ness, Stephanie L.
Resource Type:: Masters Thesis

Factors contributing to prosocial behavior among pre-school children from low-income families

Creator:: Vale, Elizabeth
Abstract:: This exploratory study examined whether temperament, home environment, and family stress impact the amount of prosocial behavior displayed by pre-school age low-income children and examined how much of an impact each factor has. Each factor was explored in depth along sub-scale dimensions including, (1) self-regulatory temperament, negative reactive temperament, and...
Resource Type:: Masters Thesis

Conifer phytotoxicity and vegetation control efficacy of ten selected herbicides

Creator:: Coate, Jeremy E.
Abstract:: Ten herbicides (atrazine, azafenidin, chlorsulfuron, clopyralid, hexazinone, imazapic, imazapyr, metsulfuron, pendimethalin, and sulfometuron) were evaluated for phytotoxicity in first-year seedlings of eight conifer species (Douglas-fir, grand fir, noble fir, redwood, Sitka spruce, western hemlock, western red cedar, and western white pine). Six of these herbicides (atrazine, clopyralid, hexazinone, imazapyr, metsulfuron,...
Resource Type:: Masters Thesis

Caught between two spheres : the relationship of Charles Dickens' street people to the Victorian concept of home

Creator:: Wylie, Lynne S.
Abstract:: Nineteenth-century England witnessed burgeoning urban growth and the resultant struggle of the poor to find adequate shelter. Against this backdrop, Charles Dickens was a fierce advocate for the rights of the street people of London to have sanitary and adequate housing, earning him the title of radical. By combining sentimentality...
Resource Type:: Masters Thesis

Recovery and utilization of Pacific whiting frame meat for surimi production

Creator:: Wendel, Ari P.
Abstract:: In surimi manufacturing, less than 25% of the total weight of the fish is utilized. This research focused on meat recovery from fish frames, the residual portion of the fish after filleting headed and gutted fish. A new technology, the water jet deboning (WJD) system, was tested. The WJD system...
Resource Type:: Masters Thesis

Nonlinear internal waves on the continental shelf: observations and KdV solutions

Creator:: O'Driscoll, Kieran
Abstract:: Numerical solutions of the Korteweg-de Vries (KdV) and extended Korteweg-de Vries (eKdV) equations are used to model the transformation of a sinusoidal internal tide as it propagates across the continental shelf. The ocean is idealized as being a two-layer fluid, justified by the fact that most of the oceanic internal...
Resource Type:: Masters Thesis

Guarantees and requirements : implementation and complexity analysis of a new model of types for declarative visual programming languages

Creator:: Chen, Roger Ding-Fu
Abstract:: Djang et al. [1998] introduced a new model of types for declarative visual programming languages (VPLs). Implicit static typing is used in their type model, in order to eliminate the programming mechanisms associated with type declarations, provide immediate visual feedback with respect to type errors and guarantee type safe programs....
Resource Type:: Masters Thesis

A model system to study the effects of methylglyoxal on the yield and quality of tissue plasminogen activator produced by CHO cells

Creator:: Triplett, Charla K.
Abstract:: In this research, a model system for studying the effects of the toxic metabolite, methylglyoxal, was created using Chinese Hamster Ovary (CHO) cells which produce tissue plasminogen activator (t-PA). The human gene for glyoxalase I was subcloned into an inducible mammalian expression vector. This vector was then used to create...
Resource Type:: Masters Thesis

Effect of trellis type and canopy location on yield components, fruit composition, shoot morphology, leaf gas exchange, and the dynamics of storage carbohydrates in Pinot noir grapevines

Creator:: Ratliff-Peacock, Joey D.
Abstract:: Five trellis types were compared during 1996 and 1997 for their effect on Pinot noir yield components, fruit composition, fruit set, shoot morphology, leaf gas exchange, and trunk carbohydrate storage. These trellis systems were: upright vertical, cane pruned (double Guyot); upright vertical, spur pruned (bilateral cordon); Scott Henry, cane pruned;...
Resource Type:: Masters Thesis

Forest structure, species diversity and spatial patterns of trees in monodominant and mixed stands in the Ituri Forest, Democratic Republic of Congo

Creator:: Makana, Jean-Remy M.
Abstract:: Two rectangular 10-ha plots (200 x 500 m) were established in each of the two main forest types of the Ituri Forest, Democratic Republic of Congo (formerly Zaire). The description of stand structure and species diversity, the comparison of the two forest types, and the evaluation of the effects of...
Resource Type:: Masters Thesis

Escherichia coli uracil-DNA glycosylase : DNA binding, catalysis, and mechanism of action

Creator:: Shroyer, Mary Jane N.
Resource Type:: Masters Thesis

Dynamics of water-soluble carbon in forest soils of contrasting fertility

Creator:: Wagai, Rota
Abstract:: Most soil organic C is in a stable form, associated with clay minerals in the upper soil profile. Upon environmental and land-use changes, stable soil C is subject to losses, which influence the global C cycle and the productivity of terrestrial ecosystems. However, mechanisms controlling soil C destabilization are not...
Resource Type:: Masters Thesis

The ecology of Devil's club (Oplopanax horridum (J.E. Smith) Miq.) in western Oregon

Creator:: Roorbach, Ashley H.
Abstract:: Devil's club (Oplopanax horridum (J. E. Smith) Miq.) is an indigenous shrub of the Pacific Northwest, often found in the Tsuga heterophylla (western hemlock)/Devil' s club association in western Oregon. In the same family as ginseng, Devil's club is gaining attention for its medicinal properties. While traditional uses of Devil's...
Resource Type:: Masters Thesis

Determinants of exports and foreign direct investment in the U.S. manufacturing sector

Creator:: Ma, Alyson C.
Resource Type:: Masters Thesis

Oregon's Conservation Reserve Enhancement Program : likely participation and recommendations for implementation

Creator:: Kingsbury, Leigh
Abstract:: This study used contingent valuation techniques to model the probability of participation in Oregon's CREP as a function of the incentive payment and a vector of socio-economic variables. Possible reasons for non-participation were evaluated and landowner preferences for various program components were assessed. Recommendations for program improvement and implementation were...
Resource Type:: Masters Thesis

Characteristics of public land grazing permittees

Creator:: Gentner, Brad
Abstract:: The federal government is the largest single landowner in the 11 western states. The majority of federal lands is grazed by domestic livestock, a consumptive resource use. Communities have evolved dependent on traditional consumptive uses. Recently, non-traditional users today have contested public land management decisions and these users have become...
Resource Type:: Masters Thesis

The volunteer experience: predictors of success in the long term care Ombudsman role

Creator:: DeHart, Kimberly N.
Abstract:: This study explored the influence of motivations on the volunteer experience. The relationship among motivations. volunteer satisfaction, acceptance and support of the organizational goals, and outcomes of success in the volunteer role (pattern of participation and ombudsman effectiveness) were explored using Multiple Linear Regression analyses. Motivational Systems Theory (Ford, 1992)...
Resource Type:: Masters Thesis

Search Constraints

Search Results

Limit your search