Index Catalog // ScholarsArchive@OSU

Beach Dune Subsurface Hydrodynamics and the Formation of Dune Scarps

Creator:: Bond, Hailey G.
Abstract:: The formation of beach scarps is a challenging morphodynamic phenomenon that the coastal community has yet to capture in coastal change models. Understanding scarp formation is crucial to accurately predicting coastal erosion and vulnerability during extreme events, as models without parameters for scarp formation and development severely underpredict total erosion...
Resource Type:: Masters Thesis
Full Text:: : ______________________________________________________ Meagan E. Wengrove The formation of beach scarps is a challenging morphodynamic

Numerical Characterization and Modeling Uncertainty of Frame-Spine and Frame-Spine-FLC Full-Scale Specimens Tested at E-Defense Shake-Table

Creator:: Astudillo, Bryam
Abstract:: The characterization of the seismic performance of structures relies on numerical simulations. However, estimates of seismic response are subject to various sources of uncertainty, including modeling uncertainty. This research estimated the response of two full-scale structural specimens composed of a moment resisting frame, elastic spines, and force-limiting connections (FLC), which...
Resource Type:: Masters Thesis
Full Text:: -Scale Specimens Tested at E-Defense Shake-Table. Abstract approved

Reducing sediment production from forest roads during wet-weather use

Creator:: Toman, Elizabeth Myers
Abstract:: Forest roads produce fine sediment with traffic during wet weather. If the forest road is connected to a stream it can be a source of turbidity and fine sediment that may be detrimental to aquatic organisms especially salmonids. The goal of this work was to investigate turbid runoff during wet-weather...
Resource Type:: Dissertation
Full Text:: : ________________________________________ _____________________________________ Arne E. Skaugset Marvin R. Pyles Forest roads

Radar and Optical Remote Sensing of Submesoscale Frontal Features

Creator:: Simpson, Alexandra J.
Abstract:: The coastal region is home to many types of surface fronts that exist on a submesoscale (1-10 $km$). While in situ observations capture point or transect observations of frontal behavior subsurface, their complex spatial patterns can be well-captured using remote sensing techniques, which provide synoptic views of the ocean surface...
Resource Type:: Dissertation
Full Text:: ) wavelengths during maximum flood currents along a tidally-consistent flood front. James River, VA, reveals

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:: TABLE OF CONTFNTS P aj e 1. INTRODUCTIO1 . . . . . . . . . . . . . . . . . . i 2. SINGLE SPAN

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

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

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:: Graduate School Date thesis is presented e. E? Typed by Marion F. Palmateer for James Dennis Clarke a

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
Full Text:: since moving to Oregon. Special thanks are extended to Senior Research Assistant E. Stuart Baker for

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
Full Text:: Appendix C. Soils Description 66 Appendix D. Model FORTRAN Program and Table 11 Data Results 72 Appendix E

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

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

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

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:: Engineering, in charge o or e Head of D partment of Civil Engineering Dean of Graduate ,School Date

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

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

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

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

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

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 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

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

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 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

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

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

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

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

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

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

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

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:: expansion of the equation of Winberg (1956) and others W = Q E. (3) This equation, which is a restatement

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:: : ______________________________________________________ Christopher E. Parrish Unmanned aircraft systems (UAS), also known as drones, are an

Abiotic and biological transformation of TBOS and TKEBS, and their role in the biological transformation of TCE and c-DCE

Creator:: Vancheeswaran, Sanjay
Abstract:: At Site-300, Lawrence Livermore National Laboratory (LLNL), CA, trichloroethene (TCE) is present along with tetraalkoxysilanes such as tetrabutoxysilane (TBOS) and tetrakis(2-ethylbutoxy) silane (TKEBS), as subsurface contaminants. Intrinsic transformation of TCE to cis-dichloroethene (c-DCE) was observed in the groundwater at locations co-contaminated with TBOS or TKEBS. Attenuation of TBOS and TKEBS...
Resource Type:: Masters Thesis
Full Text:: to Dr. James Ingle Jr. and Dr. Lewis Semprini for their encouragement and continued support. There

Storm runoff response from roadbuilding and logging on small watersheds in the Oregon Coast Range

Creator:: Hsieh, Frederic Shu-kong
Abstract:: The effects of roadbuilding, logging and burning upon stream runoff responses to individual storms are evaluated for the Alsea experimental watersheds, located in the Oregon Coast Range, The parameters analyzed are peak discharge, induced peak discharge, time-to-peak, and storm-runoff volume. The volume parameter is further sub-divided into total, quick, delayed,...
Resource Type:: Masters Thesis
Full Text:: WATERSHEDS IN THE OREGON COAST RANGE Abstract approved: Redacted for privacy James T. Kryg4Kid Redacted

Estimating the in situ Stratification via Remotely-sensed Internal Wave Speeds

Creator:: Fang, Chufan
Abstract:: This work investigates a methodology for estimating the ocean stratification gradient based on high-resolution, in space and time, remote sensing observations of internal wave propagation speeds. The internal wave speed observations were collected using a shore-based, X-band marine radar and the ocean vertical density profiles were collected simultaneously from an...
Resource Type:: Masters Thesis
Full Text:: the completion of my Master degree. I also want to thank Dr. James Lerczak. Through the discussion

Power Output Calculations for an Array of Point-absorber Wave Energy Converters

Creator:: García-Castaño, Manuel
Abstract:: This study presents a methodology for power take off (PTO) forecasting for an array of heave wave energy converters (WECs). Based on spectral data obtained directly from the National Data Buoy Center, representative realistic sea states are generated at the location of the WECs, and by using two wave-structure interaction...
Resource Type:: Masters Thesis
Full Text:: Haller and Dr. James Lerczak. I am especially thankful to Dan Cox, who instilled in me a love for

Evaluation of remediation techniques for circular holes in the webs of wood I-joists

Creator:: Polocoser, Tiberiu
Abstract:: The objective of this project was to evaluate methods to remediate a wood I-joist with a single, circular hole in the web while leaving utilities in place. The methods were experimentally evaluated with a full-scale bending test using four equally spaced point loads. There were three depths of joists with...
Resource Type:: Masters Thesis
Full Text:: ........................................................................................................................................................................ 79 APPENDIX E

Radon-222 as an in situ partitioning tracer for quantifying nonaqueous phase liquid (NAPL) saturations in the subsurface

Creator:: Davis, Brian M.
Abstract:: This study investigated the use of radon-222 as an in situ partitioning tracer for quantifying nonaqueous phase liquid (NAPL) saturations in the subsurface. Laboratory physical aquifer models (PAMs), field experiments, and numerical simulations were used to investigate radon partitioning in static (no-flow) experiments and in single-well, 'push-pull' tests conducted in...
Resource Type:: Dissertation
Full Text:: critique. I would also like to thank my committee members, Drs. Roy Haggerty, Pete Nelson, and James Ingle

Tidal range changes in the Delaware Bay : past conditions and future scenarios

Creator:: Hall, George F.
Abstract:: Throughout the Holocene, appreciable changes in bathymetry are hypothesized to have resulted in large changes to tidal datums in coastal and estuarine areas. An understanding of tidal change is an important contribution to the knowledge of relative historical sea-level change and future coastal planning. To test this hypothesis, the Advanced...
Resource Type:: Masters Thesis

Bridge Damage State Detection Based on Strain-Based Wireless Structural Health Monitoring

Creator:: Slaven, Kelli R.
Abstract:: The Pacific Northwest is at risk for significant seismic and tsunami events, which are capable of severely damaging lifeline transportation infrastructure, particularly bridges. As the bridges in the United States age and begin to show signs of fatigue, the risk for severe damage increases. Proper monitoring and inspection of bridges...
Resource Type:: Masters Thesis

Application of Titanium Alloy Bars for Strengthening Reinforced Concrete Bridge Girders in Flexure

Creator:: Vavra, Eric
Abstract:: Structurally efficient and cost-effective solutions are needed to extend the service-life of deficient and aging highway infrastructure around the world. One critical need is to increase the flexural strength of older reinforced concrete (RC) structures to carry heavier and more frequent loads. Titanium alloy bars (TiAB) offer a new opportunity...
Resource Type:: Masters Thesis

Curriculum synthesis and amelioration : a case study of undergraduate civil engineering

Creator:: Hamernik, Robert E.
Abstract:: The dynamic philosophy of education as applied to the undergraduate Civil Engineering program has been influenced by such factors as the introduction of new theories, the demands and needs of our society and the personnel responsible for teaching. These changes are reflected in the curriculum as witnessed by a historical...
Resource Type:: Dissertation
Full Text:: undergraduate civil engineering AN ABSTRACT OF THE THESIS OF Name: ROBERT E. HANERNIK for the DOCTOR OF

Examining Wave Attenuation Rates and Subsurface Pore Pressures Across Three Marsh Restoration Sill Structures on a Sandy Bed

Creator:: Converse, Jordan D.
Abstract:: With rising sea levels and more frequent exposure to extreme storms, coastlines worldwide are vulnerable to increased erosion and loss of natural marsh lands. In an effort to lessen these impacts, there is a growing practice of adapting hard or “gray” coastline protection techniques to more nature-based features that promote...
Resource Type:: Masters Thesis
Full Text:: : ______________________________________________________ Meagan. E. Wengrove With rising sea levels and more frequent exposure to extreme storms

Of Planes and Plumblines: Map Projections and Differential Leveling in a GNSS-based 3D Geodetic Framework

Creator:: Dennis, Michael L.
Abstract:: Modern geospatial data are frequently represented in some type of three-dimensional (3D) coordinate system, for example geodetic latitude, longitude, and ellipsoid height (φ, λ, h) derived from Global Navigation Satellite Systems (GNSS). But for engineering and surveying work, φ, λ, h coordinates are usually converted to a topocentric system consisting...
Resource Type:: Dissertation
Full Text:: Christopher E. Parrish Modern geospatial data are frequently represented in some type of three

Broad-crested weir design by abrupt contraction, free-streamline analogy

Creator:: Hickerson, Wallace Wayne
Resource Type:: Masters Thesis
Full Text:: Calculations .............. 34 LIST OF ILLUSTRATIONS Figure Pa&e i Sketch of two-dimensional

New Simulation and Fusion Techniques for Assessing and Enhancing UAS Topographic and Bathymetric Point cloud Accuracy

Creator:: Slocum, Richard K.
Abstract:: Imagery acquired from unmanned aircraft systems (UAS) and processed with structure from motion (SfM) – multi-view stereo (MVS) algorithms provides transformative new capabilities for surveying and mapping. Together, these new tools are leading to a democratization of airborne surveying and mapping by enabling similar capabilities (including similar or better accuracies,...
Resource Type:: Dissertation
Full Text:: : _____________________________________________________ Christopher E. Parrish Imagery acquired from unmanned aircraft systems (UAS) and

Estimating Drag and Roughness along a Near-Vertical Ice-Ocean Boundary on a Grounded Iceberg

Creator:: Cohen, Nadia
Abstract:: Ice–ocean interactions have profound consequences for the ocean and climate, influencing the rate of sea level rise. Submarine melt is commonly parameterized using a three-equation formulation for the heat, salt, and momentum conservation equations coupled to a buoyant plume model, together called plume-melt theory. However, recent direct observations of terminus...
Resource Type:: Masters Thesis
Full Text:: . Abstract approved: ______________________________________________________ Meagan E. Wengrove Ice

Dynamic behavior of silty soils

Creator:: Sunitsakul, Jutha
Abstract:: The cyclic resistance of predominantly fine-grained soils has received considerable attention following ground and foundation failures at sites underlain by silt-rich soils during recent earthquakes. In several cases substantial ground deformation and reduced bearing capacity of silt soils has been attributed to excess pore pressure generation during cyclic loading. These...
Resource Type:: Dissertation
Full Text:: (depth 6 m) computed using SHAKE and SUMDES. Top: N-S direction, Middle: E-W direction, Bottom: Vertical

Prediction of low temperature cracking of asphalt concrete mixtures with thermal stress restrained specimen test results

Creator:: Kanerva, Hannele K.
Abstract:: Low temperature cracking is attributed to tensile stresses induced in an asphalt concrete pavement that develop when the pavement is subjected to a cold temperature. Cracking results in poor ride quality and a reduction in service life of the pavement. Low temperature cracking has been predicted by regression equations, mechanistic...
Resource Type:: Dissertation
Full Text:: members, Chris A. Bell, J. R. Bell, James D. Ingle, Vincent C. Janoo and James R. Lundy for their

Spatial, diel and seasonal variations in dissolved oxygen and temperature within a stratified lake

Creator:: Smith, Stanley Allan
Abstract:: Spatial, diel and seasonal variations in dissolved oxygen and temperature were measured in Triangle Lake, Oregon. Spatial dissolved oxygen and temperature variations measured in the stratified lake are presented to illustrate the horizontal uniformity of the lake and to demonstrate the applicability of the one dimensional assumption for sampling and...
Resource Type:: Masters Thesis
Full Text:: thesis is presented Typed by Cheryl E. Curb for Stanley Allan Smith ACKNOWLEDGEMENTS The writer

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

Depth estimation and frontal imaging via X-band marine radar

Creator:: Honegger, David Andrew
Abstract:: This dissertation focuses on two core aspects of remote sensing: (a) interpretation of the remotely sensed data to identify and characterize sea surface features of interest, and (b) the quantitative analysis of previously characterized features to produce robust estimates of geophysical variables. Specifically, these aspects are addressed in the context...
Resource Type:: Dissertation
Full Text:: members, Dr. James Lerczak, Dr. David Hill, and Dr. Ted Brekken provided helpful guidance and asked

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:: . scalelog. scalelog. scalelog. scale V e rt . R e a c ti o n ( k N ) V e rt . R e a c ti o n

Tidal influence on downstream fining in gravel-bed rivers

Creator:: Coles, Derron Rafiq
Abstract:: This research examines the downstream fining phenomenon as it operates in coastal gravel-bed rivers of Oregon. Downstream fining is a change in bed composition toward smaller sediment sizes in the downstream direction. Changes in stream flow discharge and channel slope affect the rate of bed-load transport, thereby altering the downstream...
Resource Type:: Dissertation

Application of quality function deployment in the conceptual design of a construction project

Creator:: Hinkle, Verda O.
Abstract:: Quality Function Deployment (QFD) is a product development process that assures the needs and desires of the customer are heard and heeded during the design, development and production of a product. Though it has been used successfully in other industries, only a few companies in the U. S. Engineering and...
Resource Type:: Masters Thesis
Full Text:: Privacy ACKNOWLEDGEMENTS I wish to express my appreciation to Professor Neil E. Eldin for his

Hybrid Survey Networks : Combining Real-time and Static GNSS Observations for Optimizing Height Modernization

Creator:: Weaver, Brian Jerald
Abstract:: To derive ellipsoid heights on passive marks with cm-level accuracy, many current specifications require the collection and adjustment of long-duration, static Global Navigation Satellite System (GNSS) sessions. To increase efficiency, a survey procedure that includes real-time kinematic vectors from a real-time GNSS network (RTN) was evaluated. Thirty different “hybrid” networks...
Resource Type:: Masters Thesis

Quantifying the Relative Role of the Key Drivers of Coastal Dune Evolution: Observations and Simulations Across a Range of Time and Space Scales in Cape Lookout National Seashore, North Carolina

Creator:: Hovenga, Paige A.
Abstract:: Coastal dunes provide a diverse set of ecosystem services including coastal protection against destructive surge and waves during storm events. Dunes are constantly evolving through various stages of response to storm events and post-storm recovery at rates that vary due to a range of drivers including pre-existing morphology, environmental forcing...
Resource Type:: Dissertation
Full Text:: ) dune face slope, (e) total dune volume, (f) beach width, (g) backshore slope, and (h) foreshore slope

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

Improving Interlayer Bond Quality with Engineered Tack Coats under Adverse Construction Conditions: A Laboratory and Field Investigation

Creator:: Wruck, Blaine M.
Abstract:: Tack coat emulsion, comprised of asphalt binder, water and emulsifying agents, is an interlayer membrane applied before asphalt pavement construction, which helps pavement layers bond together and permeate stresses and strains induced by heavy wheel loads through the entire thickness of the pavement structure. Proper interlayer bonding aids in preventing...
Resource Type:: Masters Thesis

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

Cometabolic degradation of chlorophenolic compounds

Creator:: Wang, Gongming
Resource Type:: Dissertation
Full Text:: Sandra Woods, and the graduate school representative, Professor, James D. Jr. Ingle. Especially, I would

Evaluation and application of ice segregation parameters for frost heave prediction

Creator:: Ito, Yuzuru, 1958-
Abstract:: The success of civil engineering construction in cold regions often depends on the assessment of the potential for frost heave. Over the past two decades two models have been presented to the engineering community to identify the frost heave potential, namely: (1) the segregation potential (SP), and (2) the discrete...
Resource Type:: Dissertation
Full Text:: . Kellogg, J. Richard Bell, James R. Lundy, and William G. McDougal, as well as the former graduate

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:: . Merrick Haller, Dr. Robert Higdon and Dr. James Liburdy, who have generously gave your time and energy

Numerical simulation of anaerobic reductive dechlorination of CAHs in continuous flow systems

Creator:: Mustafa, Nizar Ahmad
Abstract:: Halogenated organic compounds have had widespread and massive applications in industry, agriculture, and private households, for example, as degreasing solvents, flame retardants and in polymer production. They are released to the environment through both anthropogenic and natural sources. The most common chlorinated solvents present as contaminants include tetrachloroethene (PCE, perchloroethene)...
Resource Type:: Dissertation
Full Text:: as percentage of total bacterial gene copies. (e from Azizian et al., 2008

Small Unmanned Aircraft Systems (UAS) for Engineering Inspections and Geospatial Mapping

Creator:: Javadnejad, Farid
Abstract:: Small unmanned aircraft systems (UAS) carrying consumer-grade nonmetric cameras are increasingly utilized to generate high-resolution 3D geospatial data. Low cost, ease of operation, widespread availability and low altitude maneuvering capabilities of UAS, as well as the rapid development of technology and methods, make UAS-based photogrammetry applicable to many civil engineering...
Resource Type:: Dissertation
Full Text:: ) ............................................................ 81 - 3D error ( )e

Structural analysis of symmetrical penstock bifurcations by the finite element method

Creator:: Shugar, T. A.
Abstract:: A need has existed for an in-depth structural analysis of penstock bifurcations because they form an integral part of hydroelectric power plants. Their geometrical complexity has prevented classical structural analysis from providing an accurate and overall picture of the stresses in the structure. Digital computers and the development of finite...
Resource Type:: Dissertation
Full Text:: E eering Redacted for privacy Dean of Graduate School Date thesis is submitted .11/6t-'47 C,/ (77

Modeling sediment transport, channel morphology and gravel mining in river bends

Creator:: Nam, Ilgi
Abstract:: A technique is developed and tested to analyze the interaction of flowing water, bed topography, and bedload sediment transport in meandering channels where gravel bars are removed. The method relates the local velocity distribution, bed shear stress and sediment transport conditions to the local bed configuration in river bends before...
Resource Type:: Dissertation
Full Text:: the members of my graduate committee, Professors David A. Bella, Jonathan D. Istok, Robert E. Wilson

The fate of specific organisms in a receiving stream

Creator:: Henshaw, Thomas Lamond
Abstract:: One of the major items in any program of municipal sanitation is the double problem of water supply and waste water disposal. Since streams are the general source of water supply and also the final receptacle for sewage, this dual use of the stream often leads to complications. Sewage and...
Resource Type:: Masters Thesis
Full Text:: , however, the E -coli colonies proved to be the easier of the two to count. (2) The membrane filter

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:: ...................................................................................... 142 Appendix E: Rates of Reductive Dechlorination ........................................... 161

Numerical Analysis of a Spine as a Retrofit of a Moment-Resisting Frame

Creator:: Rivera Torres, David M.
Abstract:: Steel moment-resisting frames (MRFs) are widely used in the United States to resist seismic forces. MRFs have many advantages, including architectural versatility, vetted member and connection detailing requirements, and high ductility for special MRFs (SMRF). However, MRFs require large members to meet story drift criteria. Moreover, strong-column-weak-beam requirements can result...
Resource Type:: Masters Thesis
Full Text:: experiment at E-Defense in Japan. A four-story MRF with Japanese details was retrofitted using a strongback

Quantification of advection and dispersion in lateral subsurface flowpaths at the hillslope-scale

Creator:: Victory, Nichole I.
Abstract:: It is becoming increasingly important to understand fundamental hillslope-scale hydrological processes. Most hillslope-sale transport experiments have generally focused on conceptual findings or other aspect of flow behavior, rather than the quantification of the mass transport mechanisms of advection and dispersion. When the velocities have been quantified, dispersion has been mentioned...
Resource Type:: Masters Thesis
Full Text:: conditions [Brusseau, 1993; Hutchison et al, 2003; Maraqa et al, 1997; Vanderborght, 2000, 2002] and in the

Direct Shear Interface Friction and Linear Motion Shaking Response of Ecoroofs

Creator:: Kilroy, Kimberly A.
Abstract:: Ecoroofs have become more prominent in recent years. However, there is currently no enforceable standard or building code for the design and construction of ecoroofs across the United States (Kraupa, 2014). Further research is needed to determine how ecoroofs respond to roof motion and to develop an appropriate design standard.The...
Resource Type:: Masters Thesis
Full Text:: Acceleration Motion (A-E Show Gauges 1-5 respectively

Student Engagement : Exploring How and Why Students Engage In- and Out-of-Class

Creator:: Pascoe, Jason J.
Abstract:: Student engagement in a course plays a vital role in a student’s ability to process and construct knowledge. Student engagement research has investigated how students engage in and out of the classroom on a macro scale, through observation and survey data collection of large student populations, which lack focus on...
Resource Type:: Masters Thesis
Full Text:: Mitchell’s engagement.................... 54 2.5.6 Case study: James………………………………………….. 55 2.5.6.1 About

Impact of access density on number of crashes at commercial roadways

Creator:: Yi, Xiang
Abstract:: Numerous research efforts have proven the safety benefits of access management. There are several access management techniques, including unsignalized access spacing, signalized intersection spacing, left-turn lanes, right-turn lanes, Two-Way Left-Turn lanes (TWLTLs), nontraversable median, U-turns, interchange access separation distances and so on. This project explores the correlation between access density...
Resource Type:: Masters Thesis
Full Text:: ............................................................. 109 9.1.14 E Burnside St, Portland, OR

Winter design criteria for waste water stabilization lagoons in western Oregon

Creator:: Whitney, Gerald Lowell
Resource Type:: Masters Thesis
Full Text:: Dr. James E, McCauley, Research Associate, Department of Zoology, Oregon State College, for

The effects of gravity on the oblique hydraulic jump

Creator:: Lenahan, Earl Leonard
Resource Type:: Masters Thesis
Full Text:: relationship between the Froude numbers is found. V1sín 1g (gh1) (gh1) __ ____ J f -3' e) t, ,\ V

A method of seismic design for prestressed concrete highway bridge girders

Creator:: Lam, Kwok To
Abstract:: The effects of vertical ground motion are particularly significant in the design of highway bridge girders. Conventional codes do not recommend methods for solving the problem. The intent of this work is to suggest an approach for such design. A set of curves for velocity spectra which are the average...
Resource Type:: Masters Thesis
Full Text:: Comparison of E Values for Concrete 7 2 Modified Factors for Velocity Spectra 33 3 The Significant Ground

Adsorption of hexavalent and trivalent chromium to a clayey silt soil : batch kinetic and equilibrium studies

Creator:: Bean, Gregory R.
Abstract:: Chromium, an element of widespread use, is toxic in some forms. Improper disposal of waste chromium products has resulted in contamination of many sites throughout the United States, including the United Chrome Products Superfund site in Corvallis, Oregon. A better understanding of chromium chemistry is needed to facilitate the remediation...
Resource Type:: Masters Thesis
Full Text:: ,CrO, + 6 H+ + 3 e- = Cr3. + 4 H2O (Eq. 2.1) 15 to illustrate the pH dependency of the reduction

Stability of elastically restrained framed structures by matrix analysis

Creator:: Albertson, Oran Lester
Abstract:: It has been undertaken here to use the matrix method of structural analysis for the determination of the stability of elastically restrained, simple portal frames. This involves the formulation of the stiffness matrix of the structure in terms of the axial force in the members. The stability criterion, when applied...
Resource Type:: Masters Thesis
Full Text:: Figure 2(c) is the quantity e which refers to axial deformation. The sign of e is positive when there

Investigation of a hipped plate roof structure

Creator:: Kim, Jai Bin
Resource Type:: Masters Thesis
Full Text:: ) . . . . . . . . . . . . . . 15 E. Case II, Considering Plate Rotations . . 19 F. Deflection Formulas . . . . . . . . . . . 22

Estuarine sediment controls on trace metal distributions

Creator:: Davies-Colley, Robert J.
Abstract:: Sediments are the major compartment in aquatic environments for many materials of toxic or nutrient concern. The lack of knowledge of the phase associations of toxic metals in sediments is the largest deficiency in our understanding of the environmental hazard posed by metal contamination. This study examined the sedimentary partitioning...
Resource Type:: Dissertation
Full Text:: DISTRIBUTIONS by ROBERT JAMES DAVIES-COLLEY A THESIS submitted to Oregon State University in partial

Critical buckling load for round tapered columns with variable end fixity

Creator:: Dotson, George Franklin
Abstract:: The critical buckling load for round tapered columns with variable end fixity is presented. The theory used is presented together with the general solution for the resulting differential equation. This general solution is solved by use of a computer. The computer program written specifically for this thesis, the flow chart,...
Resource Type:: Masters Thesis
Full Text:: fixed 1. 00 16.0 176k 70. 5k 50. 7k 46 BIBLIOGRAPHY 1. Boyd, James E. Tapered struts; a theoretical

Regional and Site-Specific Vulnerabilities of the Western Power Grid from a M9.3 Cascadia Subduction Zone Earthquake

Creator:: Lathrop Eve D.
Abstract:: The likelihood of a Cascadia Subduction Zone (CSZ) earthquake is estimated between 37 to 42% in the next 50 years, leading to strong shaking, liquefaction, landsliding, and other seismic ground failure resulting in major impacts to critical lifelines such as the western power grid. Electrical power is essential for continued...
Resource Type:: Masters Thesis
Full Text:: decide to pursue a master’s degree. Thank you to Dr. Eduardo Cotilla-Sanchez, Leon Kempner, James

Modeling estuary pollution by computer simulation

Creator:: Grenney, William J.
Abstract:: A digital computer model was developed to simulate the time and space distribution of a dissolved pollutant in an estuary. The program is basically a one-dimensional finite-difference model, but two dimensions can be represented by attaching together several one-dimensional channels. The influence of convection, dispersion and decay are included in...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF William James Grenney for the

Dynamic analysis of three-dimensional frames

Creator:: Scholl, Roger Edwin
Abstract:: The response of three-dimensional frames subjected to an arbitrary dynamic force is studied. The method of mode superposition is used to obtain the frame response solution. Two different modeling systems are used to idealize the frame. These are the "discrete mass system" and the "continuous mass system." For an example...
Resource Type:: Dissertation
Full Text:: ) Torsion L + e 1 P L .1 (c) Axial x Figure 2. 2. Force-displacement sign convention for 6 x 6 [ ki

The Effectiveness of Red Light Cameras In Washington and Oregon

Creator:: Bradbury, Kate Elise
Abstract:: This study considered collision data for Seattle, Washington and Portland, Oregon in order to determine whether or not red light cameras are effective in reducing red light running collisions. Red light running is extremely dangerous and is a leading cause of urban automobile collisions in the United States. Red light...
Resource Type:: Honors College Thesis
Full Text:: : Red light camera, Washington, Portland, effectiveness, collisions Corresponding E-mail Address

The geochemical partitioning and bioavailability of trace metals in marine sediments

Creator:: Oakley, Stewart M.
Abstract:: Trace metals in the aquatic environment are generally concentrated on the surface of solid geochemical phases which eventually become incorporated into estuarine and marine sediments. The mechanism of trace metal concentration is believed to be adsorption with various geochemical phases such as hydrous metal oxides, clays, and organic matter. Metals...
Resource Type:: Dissertation
Full Text:: j = E E [MeLi(j)] i j [MeS] = E E [MeLi(j)S] where [Me T ] is the total soluble trace metal

Correlation of methods for solving indeterminate frames

Creator:: Liu, David Cheng-Tso
Resource Type:: Masters Thesis
Full Text:: , . . . . . . e s s s s e e s . 5 57 CORRELATION OF MTTHODS FOR SOLVING INDETERMINATE FRAMES CHAPTER I

The effect of waste water lagoon effluent upon a receiving stream

Creator:: Sawyer, Harold Louis
Resource Type:: Masters Thesis
Full Text:: Experiment Station for providing the necessary test facilities. Mr. and Mrs. James C. Pearson : fór their

A Numerical Investigation of the Bearing Capacity of Shallow Foundations on Salt-Encrusted Flat Sabkha

Creator:: Refaei, Raied
Abstract:: Salt-encrusted flats, or Sabkha, are common in arid and semi-arid regions worldwide, including coastal and inland areas. Due to their low shear strength and high compressibility, these soils are often unsuitable for supporting infrastructure or structures. The unique salt content of sabkha formations sets them apart from other soil types....
Resource Type:: Masters Thesis
Full Text:: incremental displacement, (e) and (f), for the stress state

Alum coagulation in conjunction with the activated sludge treatment of corn processing waste water

Creator:: Jensen, Harold LeRoy, III
Abstract:: The treatment of waste water from a corn freezing process by activated sludge with the aid of alum coagulation was investigated. Both high and low energy level systems were observed with good flocculation occurring at the low energy level. Because poor flocculation occurs at high energy level conditions, alum was...
Resource Type:: Masters Thesis
Full Text:: examination of water and wastewater. 12th ed. New York, 1965. 769 p. 2. Drake, James A. and Fred K. Bieri

Effect of electron donors on the reductive dechlorination of trichlorofluoroethylene in anaerobic microcosms and in situ push-pull tests

Creator:: Louie, Erika N.
Abstract:: This research focuses on the anaerobic transformation of trichloroethylene (TCE) that is occurring in the subsurface of the Evanite site in Corvallis, OR. Two anaerobic studies were conducted to investigate the effects of microbial communities in the presence of different electron donors during the anaerobic degradation of trichlorofluoroethylene (TCFE), and...
Resource Type:: Masters Thesis
Full Text:: ......................................................................... 89 Appendix E Well Measurements

A Methodological Approach for Structural Health Monitoring of Mass-Timber Buildings Under Construction

Creator:: Baas, Esther J.
Abstract:: As mass-timber building construction rises around the globe, there exists the need to verify the long-term, in-situ behavior and performance of these structural systems. Structural health monitoring (SHM), generally defined as a damage detection strategy consisting of a network of sensors, a data acquisition system, and algorithms for data analysis,...
Resource Type:: Masters Thesis

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:: processes. In the action balance, the action density, N, is defined as N = E/σ, where E is the wave energy

Airphoto analysis of estuarine circulation

Creator:: Weise, Harry Gordon
Abstract:: Aerial photography has become a valuable method of acquiring information on estuarine current circulation patterns. The method provides a comprehensive picture of nearly simultaneous surface water movements. It represents a significant improvement over conventional surface float and current meter methods because large areas may be covered in great detail with...
Resource Type:: Masters Thesis
Full Text:: researchers (James, 1970). In this study, operational procedures for optimum coverage of an estuary are

Effect of deposits in Columbia Slough on algae growth in Smith and Bybee lakes

Creator:: Sobolewski, William Joseph
Abstract:: Currently, the Port of Portland is developing a 9, 410 acre area at the confluence of the Columbia and Willamette Rivers in Multnomah County, Oregon. This area will be developed for industrial, commercial, and recreational use. The recreational development in the North Portland Peninsula area, including the Rivergate Industrial District,...
Resource Type:: Masters Thesis
Full Text:: . Gahler and Mr. Thomas E. Maloney also from the water laboratory were kind enough to read and provide

In situ measurement of the benthal oxygen requirements of tidal flat deposits

Creator:: Crook, Gene Ray
Abstract:: In situ light and dark planktonic and benthal respirometers were used to measure the oxygen requirements of Yaquina estuary water and benthal deposits. Respirometer devices were constructed so that actual conditions of mixing could be simulated and benthal deposit disturbance would be minimized. A mathematical model of a benthal respirometer...
Resource Type:: Masters Thesis

Laboratory study of chromium sorption and desorption in undisturbed soil

Creator:: Müller, Heike K.
Resource Type:: Masters Thesis
Full Text:: , precipitation, etc.. Another descriptive approach was taken by James and Bartlett (1983). Since Bartlett and

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