Index Catalog // ScholarsArchive@OSU

System design for Dungeness crab processing

Creator:: Adams, Burton Warren
Abstract:: Dungeness crab is an important fishery on the Pacific Coast. The processing subsystem of the fishery is hampered by a variety of problems that have acted to impede technological innovations that could improve efficiency and sanitation in seafood plants. This paper provides background for problems encountered by the processors, discusses...
Resource Type:: Masters Thesis
Full Text:: OF THE THESIS OF BURTON WARREN ADAMS for the MASTER OF SCIENCE (Name of student) (Degree) in Ocean

The activity and growth of a chlorophenol reductively dechlorinating soil culture in the presence of exogenous hydrogen

Creator:: Lotrario, Joseph Bryce
Abstract:: The addition of exogenously supplied hydrogen stimulates PCP reductive dechlorination and increases bacterial growth. While research focuses mainly on pure cultures, few exist capable of aryl reductive dechlorination, and few markers exist to identify reductively dechlorinating bacteria within mixed cultures. Furthermore, most active bioremediation projects stimulate mixed cultures of native...
Resource Type:: Dissertation
Full Text:: Burton for their time and effort. If there is one person who deserves my gratitude, it is Dr. Sandra

Advancements Toward the Simulation of Steel Structures in Fire Using OpenSees

Creator:: Gordon, James A.
Abstract:: Since the collapse of World Trade Center building number seven (WTC7), significant research has been done to understand the behavior of steel structures in fire and enable engineers to account for the behavior of steel framing systems exposed to fire during design. Despite these efforts, there are still significant barriers...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF James A. Gordon

3-D finite element modeling in OpenSees for bridge live-load girder distribution factors

Creator:: Scoggins, Luke A.
Abstract:: A generalized, three-dimensional, finite element bridge model was created in order to efficiently and accurately assess live-load girder distribution factors for a variety of bridge types. This model shortens the time required by bridge analysts to develop individual finite element models for bridges of varying geometries. The creation of the...
Resource Type:: Masters Thesis
Full Text:: Factors. Abstract approved: Michael H. Scott A generalized, three-dimensional, finite

Amplification of solitary waves along a vertical wall

Creator:: Li, Wenwen
Abstract:: Reflection of an obliquely incident solitary wave at a vertical wall is studied experimentally in the laboratory wave tank. Precision measurements of water-surface variations are achieved with the aid of laser-induced fluorescent (LIF) technique and detailed temporal and spatial features of the Mach reflection are captured. During the development stage...
Resource Type:: Dissertation
Full Text:: of Solitary Waves along a Vertical Wall Abstract approved: Harry H. Yeh Reflection of an obliquely

Nonlinear finite element analysis of reinforced concrete structures strengthened with FRP laminates

Creator:: Chansawat, Kasidit
Abstract:: The Horsetail Creek (HC) bridge is an example of an Oregon bridge that was classified as structurally deficient and was not designed to withstand earthquake (EQ) excitations. A fiber-reinforced polymer (FRP) rehabilitation was performed on the HC bridge to increase flexural and shear capacities for traffic loads. However, a seismic...
Resource Type:: Dissertation

Experimental and Analytical Studies of Large-Scale Pile Caps

Creator:: Al-Sakin, Yasmeen
Abstract:: Pile caps are structural elements used to transfer loads from columns to a group of piles, which transfer them to stronger soil layers. Pile cap with horizontal distance between the column and piles less than twice its effective depth is categorized as "deep," where significant nonlinear strain distribution occurs through...
Resource Type:: Dissertation
Full Text:: , Christopher Higgins, James Newell, and Kent Yu

Evaluation of crumb rubber modified mixtures using performance based analyses

Creator:: Saxton, Robert W.
Abstract:: This study investigated the laboratory performance of crumb rubber modified mixtures compared to a standard bituminous mixture using performance based test procedures. This study was part of an asphalt resurfacing program for the Seattle Washington area. Laboratory analyses were used to estimate the long term pavement performance of these mixtures...
Resource Type:: Masters Thesis
Full Text:: cracking. All of the Plus Ride H® mixtures performed inadequately when tested for permanent deformation

The control and fate of enteric bacteria in the environment with particular emphasis on the factors influencing fecal indicator survival in waste storage facilities

Creator:: Crane, Stuart R.
Abstract:: The indiscriminate release of fecal bacteria to the environment can present a public health hazard when pathogenic species gain access to drinking and recreational water sources. The extent of bacterial contamination of surface and ground waters associated with animal production units and waste application areas seems largely dependent on the...
Resource Type:: Dissertation

Evaluating dairy waste management systems ̓influence on fecal coliform concentration in runoff

Creator:: Grismer, Mark Edward
Abstract:: This paper examines the environmental factors influencing the die-off and transport of fecal coliform bacteria present in wastes applied to the land surface. These factors are examined specifically for dairy waste management systems and the net effect each system has on runoff water quality. A model is developed that considers...
Resource Type:: Masters Thesis

Polar analysis of beam-columns for aircraft

Creator:: Jones, Walter Richard
Abstract:: The analysis of a member carrying a combination of lateral and axial loads (a "beam-column") is a problem of frequent occurrence in aircraft structural design. This thesis presents the derivation and application of the Polar method, both analytical and graphical. The method was first suggested in Germany, several years later...
Resource Type:: Masters Thesis
Full Text:: load, and we may write: M,= Cco5(--E) 20. w MR ML p v FIG. 6o h R L L k

Early age performance of latex-modified concrete bridge deck overlays

Creator:: Sujjavanich, Suvimol
Abstract:: Environmental factors and physical properties of latex modified concrete (LMC) are hypothesized to contribute to early age cracking in bridge deck overlays. Cracking permits the ingress of moisture and aggressive solutions into the substrate and may contribute to other subsequent distresses. Understanding the material properties and mechanisms involved is necessary...
Resource Type:: Dissertation
Full Text:: Performance of Latex-Modified Concrete Bridge Deck Overlays. James R.Lundy Environmental factors and

Petroleum refinery residuals : a recycling feasibility study

Creator:: Hoffman, Andrew J.
Abstract:: Large quantities of unused heavy oil and residual waste products from the petroleum refining industry were deposited in on-site landfills, pits, and lagoons, prior to the promulgation of regulations governing their disposal and technology development that would further utilize and/or recycle these materials. Contacting petroleum products with sulfuric acid for...
Resource Type:: Masters Thesis
Full Text:: Residuals: A Recycling Feasibility Study. Abstract Approved: James R. Lundy Large quantities of unused

Bond strength investigations and structural applicability of composite fiber-reinforced polymer (FRP) rebars

Creator:: Kachlakev, Damian I.
Abstract:: The composite FRP rebars research at Oregon State University was initiated in 1993 principally to develop a non-metallic hollow reinforcement. It was recognized that the tensile properties of such reinforcement are unquestionably superior to steel, but its performance in concrete could be problematic. The bond between FRP rebars and concrete...
Resource Type:: Dissertation
Full Text:: approved James R. Dindy The composite FRP rebars research at Oregon State University was initiated in

Wave forces on a horizontal circular cylinder near a plane boundary

Creator:: Wright, James Christopher
Resource Type:: Masters Thesis
Full Text:: boundary AN ABSTRACT OF THE THESIS OF MASTER OF JAMES CHRISTOPHER WRIGHT for the degree OCEAN

Experimental and numerical modeling of wave height attenuation by emergent coastal vegetation

Creator:: Blackmar, Philip James
Abstract:: Coastal vegetation dampens waves which can provide benefits to the local area, but existing literature shows large variations in the degree of wave height attenuation depending on plant properties and wave conditions. Better knowledge of how to predict the wave height decay accurately in different types of vegetation may help...
Resource Type:: Masters Thesis
Full Text:: by Emergent Coastal Vegetation AN ABSTRACT OF THE THESIS OF Philip James Blackmar

Reductive, dechlorination of sediment-sorbed polychlorinated biphenyls by vitamin B₁₂(subscript s)

Creator:: Trobaugh, Darin James
Abstract:: The reductive dechlorination of chlorobiphenyls in sediment by titanium(III) citrate-reduced vitamin Bus was studied in batch reactors. Long term ampoule studies demonstrated reductive dechlorination of sediment-sorbed 2,3,4,5,6-pentachlorobiphenyl (2,3,4,5,6-PeCB) to tetra-, tri-, di-, and monochlorobiphenyl products. Over 50% chlorine removal was observed over 160 days. The results of the ampoule experiment...
Resource Type:: Masters Thesis
Full Text:: biphenyls by vitamin B12(subscript s) AN ABSTRACT OF THE THESIS OF Darin James Trobaugh for the degree

Air photo analysis of waste dispersion from ocean outfalls

Creator:: James, Wesley Pierce
Abstract:: Aerial photography provides a method of analyzing dispersion of wastes that are discharged into the ocean. This method is more comprehensive than conventional boat sampling in dispersion studies. The photographic technique permits waste concentrations to be measured throughout the plume in one instant; thereby allowing the diffusion analysis to be...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE THESIS OF WESLEY PIERCE JAMES for the DOCTOR

Stiffness matrix analysis of structures by electronic digital computer

Creator:: Serpanos, James Evan
Resource Type:: Masters Thesis
Full Text:: Digital Computer AN ABSTRACT OF THE THESIS OF James Evan Serpanos for the M. S. in Structural

Foam separation of organic and toxic materials in kraft mill effluents

Creator:: Blazier, James Lewis
Abstract:: Because of the organic nature and the natural foaming characteristics of kraft mill effluents, it was decided to investigate the feasibility of using foam separation as a method of treatment. The treatment efficiency was evaluated by BOD and COD reductions as well as the decrease in toxicity to marine life....
Resource Type:: Masters Thesis
Full Text:: IN KRAFT MILL EFFLUENTS by JAMES LE\MIS BLAZIER A THESIS s ubrnitted to OREGON STATE UNIVERSITY

Behavior of cellular bulkheads in deep sands

Creator:: Maitland, James Keith
Abstract:: Large-scale experiments on circular model cell bulkheads were conducted to define the distribution of hoop stresses, deflections of the cells, distortion of the cell fill, ultimate overturning resistance, and the critical mode of failure. The embedment depth of the model cells was varied to investigate the effect of embedment on...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE THESIS OF James Keith Maitland for the

The evaluation of the field vane shear strength analysis of the Glen Aiken creek embankment failure

Creator:: Clarke, James Dennis
Abstract:: A post-failure investigation of a highway embankment constructed over organic and sensitive subsoils was made with a series of field vane tests. The results indicated that the embankment was quite stable, and, therefore, the reliabilities of both the Φ = 0 slip-circle analysis and the field vane results seemed to...
Resource Type:: Masters Thesis
Full Text:: of the Glen Aiken Creek Embankment Failure AN ABSTRACT OF THE THESIS OF JAMES DENNIS CLARKE for

Structural framing of large field houses

Creator:: Zarosinski, Donald James
Resource Type:: Masters Thesis
Full Text:: laborous tasks, connected with writing a thesis, contributed by James Gray and Hal Pritchitt is greatly

Characterization of reinforced fill soil, soil-reinforcement interaction, and internal stability of very tall MSE walls

Creator:: Walters, James J.
Abstract:: In many geotechnical design situations involving tight right-of-way constraints, Mechanically Stabilized Earth (MSE) walls are often the most cost-effective and reliable earth retention technology among available alternatives. However, few well-documented case histories with detailed material testing, instrumentation programs and construction observation of performance are available in the literature. Despite the...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF James J. Walters for the degree of Master of Science in Civil

A model for simulating river and reservoir temperatures with applications for anadromous fish management

Creator:: Currie, James William
Abstract:: A problem confronting the Corps of Engineers and other water resources planners in the Pacific Northwest is the prediction of anadromous fish enhancement benefits that would result from a proposed high dam project. These benefits are expected from augmenting natural streamflows with relatively cold reservoir withdrawals. The resulting increased streamflows...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE THESIS OF JAMES WILLIAM CURRIE for the

The effect of elevated pressure on the activated sludge process

Creator:: Godsil, Patrick James
Abstract:: A study of the effect of elevated pressure on the activated sludge waste treatment process is presented. The method of study involved a comparison of two laboratory, batch type, activated sludge units. One unit was operated at atmospheric pressure as a base control and the other operated at elevated pressures...
Resource Type:: Masters Thesis
Full Text:: process AN ABSTRACT OF THE THESIS OF Patrick James Godsil for the Master of Science in Civil

Behavior of stream inflows to a stratifying field reservoir

Creator:: Chasse, James Peter
Abstract:: The behavior of a stream upon entering a field reservoir was studied at various stages of stratification. The principal field techniques included fluorometric and temperature surveys. General relationships were obtained, between dimensional and locational characteristics of the inflow current and the thermal structure of the impoundment. As predicted by analytical...
Resource Type:: Masters Thesis
Full Text:: reservoir AN ABSTRACT OF THE THESIS OF JAMES PETER CHASSE. for the MASTER OF SCIENCE (Name) (Degree) In

Biodegradability and oxygen uptake studies on resuspended estuarine bottom sediments

Creator:: Touhey, Robert James
Abstract:: A study was conducted to determine the oxygen uptake rate of resuspended estuarine bottom sediments and the biodegradability of the organic matter released during resuspension. Oxygen uptake was measured on a Gilson Differential Respirometer and the percent biodegradability was calculated by determining the soluble organic carbon on a Beckman Carbonaceous...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF ROBERT JAMES TOUHEY for the MASTER

The Fundamental Behavior of CLT Floor-to-Wall Connections in Fire

Creator:: Redus, James Aaron
Abstract:: This thesis focuses on the fundamental behavior of CLT floor-to-wall connections during a fire. Cross-laminated timber (CLT) panelized structures rely on floor-to-wall connections for the load path and stability of the structure. Additionally, the fire performance of these connections is critical to prevent horizontal or vertical fire spread within these...
Resource Type:: Masters Thesis
Full Text:: OF James Aaron Redus for the degree of Master of Science in Wood Science and Civil Engineering

Applying the Mixed Logit Model with Heterogeneity in Means and Variances to Pedestrian Injury Severity Outcomes

Creator:: Umphress, James
Abstract:: Walking is the single most universal mode of transportation in the world, but being a pedestrian exposes a traveler to high risk. Historically, pedestrians have consistently experienced disproportionately high rates of fatalities and severe injuries in traffic crashes. Research has probed into factors influencing pedestrian crash injury severity outcomes, but...
Resource Type:: Masters Thesis
Full Text:: OF THE THESIS OF James Umphress for the degree of Master of Science in Civil Engineering presented

Steel confined yielding damper for earthquake resistant design

Creator:: Newell, James D.
Abstract:: An experimental study of a passive energy dissipation tension-compression yielding brace or buckling restrained brace has been conducted. The Confined Yielding Damper (CYD) consists of a steel yielding core confined within a tube filled with non-cohesive media. The external tube and confined non-cohesive media provide lateral stability to the core...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF James D. Newell for the degree of

An evaluation of the cubic autotape under dynamic conditions

Creator:: Plasker, James Robert
Abstract:: Accuracy requirements for positioning a vessel in the near shore area have increased in recent years. To meet these requirements several electronic positioning systems have been developed. One such system is the Cubic Autotape Model DM-40. The Autotape is a circular positioning system which utilizes the phase comparison between transmitted...
Resource Type:: Masters Thesis
Full Text:: conditions AN ABSTRACT OF THE THESIS OF JAMES ROBERT PLASKER for the MASTER OF SCIENCE (Name) (Degree) in

Predicting pore pressure response in in-situ liquefaction studies using controlled blasting

Creator:: Eller, James Michael
Abstract:: Originally used as a method to densify loose soils, controlled blasting has expanded its applicability to geotechnical engineering by becoming a research tool to physically generate liquefaction for full-scale in-situ tests, ranging from seismic performance of deep foundations to evaluating ground improvement techniques. Current methods used to design the blasting...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF James Michael Eller for the degree of Master of Science in Civil

Stochastic analysis of a nonlinear ocean structural system

Creator:: Lin, Huan
Abstract:: Stochastic analysis procedures have been recently applied to analyze nonlinear dynamical systems. In this study, nonlinear responses, stochastic and/or chaotic, are examined and interpreted from a probabilistic perspective. A multi-point-moored ocean structural system under regular and irregular wave excitations is analytically examined via a generalized stochastic Melnikov function and Markov...
Resource Type:: Dissertation
Full Text:: . Appreciation is also given to other members of my committee: Prof. Robert M. Burton, Prof. John W. Leonard

The role of specific surface area and related index properties in the frost susceptibility of soils

Creator:: Rieke, Ross D.
Resource Type:: Masters Thesis
Full Text:: members of my graduate committee, Robert Layton and James Knudsen. Prior to, and during this research

Optimization of feeding schedules for coho salmon in the hatchery environment

Creator:: Corey, Philip David
Abstract:: A growth model is developed for coho salmon which accounts for temperatures and feeding rates typically encountered in fish hatchery operation. Feeding rates utilized by the model ranged from maintenance to maximum utilizable rations. The model is derived from an empirical equation for maximum growth rate, and a theoretical equation...
Resource Type:: Dissertation
Full Text:: Improvement of Ration Adjustment Function 13 amaz(TX, R4aint(71'In' and h(T) for Salmonids 28 Summary and

An Interdisciplinary Agent-based Evacuation Modeling Framework: Seeking Convergence of Social, Natural, and Engineered Systems to Improve Life Safety in the Cascadia Subduction Zone

Creator:: Chen, Chen
Abstract:: Social scientists have studied people's responses to disasters for many decades, and behavioral commonalities and variations are summarized in different mental schemes/models in disaster studies. Integrating those findings from social science into evacuation simulation can improve simulation accuracy and eventually better support decision-making and disaster preparedness. However, this kind of...
Resource Type:: Dissertation
Full Text:: , Dr. Daniel Cox, and Dr. David James Lewis. They all have been providing a lot of great suggestions

Estimating the impacts of a vehicle mileage fee using a discrete continuous choice modeling approach

Creator:: Valluri, Divya
Abstract:: The gasoline tax, the main source of highway revenue is no longer a viable source of funding to maintain the existing highways. Many states in the United States are already using revenues from other sources such as sales tax and income tax to fund new highways. Oregon along with many...
Resource Type:: Masters Thesis
Full Text:: re go n C ol or ad o M ic hi ga n M in ne so ta U ta h V ir gi ni a W as hi

Breaking wave problems and probabilities

Creator:: Yeh, Rong-chuen
Resource Type:: Dissertation
Full Text:: Privacy Dr. John H. Nath Wave breaking is a continuous process which can cause a dramatic change in

Depth-dependence of surf zone eddies : a study at Duck, NC

Creator:: Aiken, Rebecca A.
Abstract:: Surf zone eddies (f < 0.01 Hz) are important in nearshore mixing, shoreline erosion, the distribution of pollutants, and ecological processes, such as offshore transport of larvae. Surf zone eddies have traditionally been treated as two-dimensional features with horizontal length scales larger than the local water depth. Studies by Lippmann...
Resource Type:: Masters Thesis
Full Text:: : ______________________________________________________ H. Tuba Özkan-Haller Surf zone eddies (f < 0.01 Hz) are important in nearshore mixing

Optimizing intake screens for Ocean Thermal Energy Conversion power plants

Creator:: Hansen, Robert Michael
Resource Type:: Masters Thesis
Full Text:: . John H. Nath An Ocean Thermal Energy Conversion (OTEC) power plant requires continuous large volume

Random wave velocity field from periodic theory

Creator:: Kobune, Koji
Abstract:: Random waves are often expressed as a mathematical superposition of an infinite number of sinusoidal components. The mean square spectral density of the water surface elevation is often called the wave spectrum. The zero upcrossing wave heights usually have a Rayleigh probability distribution. However, the design wave concept is still...
Resource Type:: Masters Thesis
Full Text:: Theory Abstract approved: Redacted for Privacy Dr. John H. Nath Random waves are often expressed as a

Analysis of evapotranspiration for various climatic regimes using geostatistics

Creator:: Nuss, Jeffery L.
Abstract:: Research was conducted to determine the applicability of using the theory of regionalized variables or geostatistics in characterizing the spatial variability of reference evapotranspiration (ETr) over various climatic regimes for the state of Oregon. The state was divided into five climatic regions based on topographic features and local meteorological conditions:...
Resource Type:: Masters Thesis
Full Text:: Various Climatic Regimes Using Geostatistics Abstract approved: Redacted for Privacy Dr. Richard H

A Multivariate Comparison of Drone-Based Structure from Motion and Drone-Based Lidar for Dense Topographic Mapping Applications

Creator:: Simpson, Chase H.
Abstract:: Unmanned aircraft systems (UAS), also known as drones, are an increasingly popular method of collecting surveying and mapping data. Two common drone-based mapping techniques are lidar and structure from motion (SfM) photogrammetry, and a frequently-heard (yet nearly impossible to answer) question is: “which is better?” The most common metric for...
Resource Type:: Masters Thesis
Full Text:: THESIS OF Chase H. Simpson for the degree of Master of Science in Civil Engineering presented on

Fluid-structure interaction analysis with the particle finite element method

Creator:: Zhu, Minjie
Abstract:: To facilitate the evaluation and design of structures subjected to fluid loading, a study of fluid-structure interaction (FSI) using the particle finite element method (PFEM) is presented to approximate the responses and sensitivities of structures which interact with fluid. A wide range of structural types are permissible by making no...
Resource Type:: Dissertation
Full Text:: analysis with the particle finite element method Abstract approved: Michael H. Scott To facilitate

Evaluation of the Efficiency of Supplementary Cementitious Materials to Prevent Alkali-Silica Reaction in Concrete with Highly and Very Highly Reactive Aggregates

Creator:: Chopperla, Krishna Siva Teja
Abstract:: The most common test methods to evaluate alkali-silica reaction (ASR), the concrete prism test (CPT) and the accelerated mortar bar tests (AMBT), have limitations and are not entirely reliable in terms of predicting the performance of concrete with prevention measures under field conditions. In this study, the miniature concrete prism...
Resource Type:: Dissertation
Full Text:: : ______________________________________________________ Jason H. Ideker The most common test methods to evaluate

Near-Surface Response of Beach Sand : An Experimental Investigation

Creator:: Adams, Rachel Katie
Abstract:: The near-surface region of a coastal sediment bed is complex and dynamic. At some sites, near-surface sediment deposits are susceptible to extreme events, such as tsunamis or other large overflows, which induce high shear stresses on the sediment bed. The specific properties of sediment beds subjected to such extreme loading...
Resource Type:: Masters Thesis
Full Text:: Response of Beach Sand: An Experimental Investigation Abstract approved: H. Benjamin Mason Keywords

A procedure to identify and evaluate forest arterial and collector road networks

Creator:: Kehr, Richard H.
Abstract:: This thesis presents a procedure to identify and evaluate forest arterial and collector networks. The procedure identifies those decision criteria important in evaluating both the arterial and collector networks and the specific facilities identified on these networks. The procedure incorporates the decision criteria and results from network and facility analysis...
Resource Type:: Masters Thesis
Full Text:: Kehr, Richard H. AN ABSTRACT OF THE THESIS OF Richard

Experimental and analytical investigation of ponding load effects on a steel joist roof system

Creator:: Stark, Duncan
Abstract:: Ponding of water on roof systems leading to collapse causes expensive damage and jeopardizes the life safety of building occupants. Current building codes and design specifications for flat roof systems offer minimal guidance in designing for ponding loads. The present research investigated ponding load effects on a long span, lightweight...
Resource Type:: Masters Thesis

The analysis of directional wave spectra from current and pressure measurements

Creator:: Lin, Li-hwa
Abstract:: Directional wave spectra have been estimated in this study based upon simultaneous subsurface measurements of current and pressure. Two previously developed methods, the stochastic and deterministic approaches, have been reviewed and restudied. It is demonstrated by means of the Correlation Theorem that the stochastic and deterministic approaches are, under certain...
Resource Type:: Masters Thesis
Full Text:: throughout this research. The technical assistance provided by Mr. James Washburn and Mr. David Standley at

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