Index Catalog // ScholarsArchive@OSU

Data Assimilation using Synthetic-Aperture Radar Imagery for Bathymetry Inversion at the Mouth of the Columbia River

Creator:: Harper, Spencer H.
Abstract:: Synthetic-aperture radar (SAR) imagery can provide wavenumber and frequency data to generate bathymetry estimates for locations where limited access or extreme ocean conditions can make standard bathymetry survey techniques difficult or impossible. The availability of SAR data could allow for regular bathymetry estimates of navigational channels providing insight into dredging...
Resource Type:: Masters Thesis
Full Text:: River. Abstract approved:_____________________________________________________ H. Tuba Özkan

Offshore controls on nearshore circulation

Creator:: Long, Joseph W.
Abstract:: The rip current field resulting from the transformation of surface gravity waves over offshore submarine canyons is studied. Employing a wave transformation model and a wave-induced circulation model over observed bathymetry we find that rip current circulation cells exist with alongshore spacing of O(1OOm) even though the nearshore bathymetry displayed...
Resource Type:: Masters Thesis
Full Text:: on Nearshore Circulation Abstract approved: H. Tuba Ozkan-Haller The rip current field resulting

Breaking Waves Offshore: Measurements and Modeling of Energy Dissipation

Creator:: Ticona Rollano, Fadia M.
Abstract:: In the presence of strong winds, ocean surface waves dissipate significant amounts of energy by breaking. Here, breaking rates and wave-following turbulent dissipation rate measurements are compared with numerical WAVEWATCH III estimates of bulk energy dissipation. At high winds, the measurements suggest that turbulent dissipation becomes saturated, however the modeled...
Resource Type:: Masters Thesis
Full Text:: : ______________________________________________________ H. Tuba Özkan‒Haller In the presence of strong winds, ocean surface waves dissipate

Toward wave energy in Oregon : predicting wave conditions and extracted power

Creator:: Oskamp, Jeffrey A.
Abstract:: Knowledge of wave conditions in nearshore regions supports the development of ocean wave energy technology by providing wave climatology for device design considerations, and power output estimates. By modeling wave transformation over the continental shelf, wave conditions were predicted in nearshore regions where potential wave energy conversion sites are located....
Resource Type:: Masters Thesis
Full Text:: would like to thank my advisor, Dr. H. Tuba Özkan-Haller, for the time she spent working with me on

Wave field patterns generated by wave energy converters

Creator:: McNatt, J. Cameron
Abstract:: The eventual deployment of wave energy converters (WECs) on a commercial scale will necessitate the grouping of devices into arrays or "wave farms," in order to minimize overhead costs of mooring, maintenance, installation, and electrical cabling for shoreward power delivery. Closely spaced WECs will interact hydrodynamically through diffracted and radiated...
Resource Type:: Masters Thesis
Full Text:: Patterns Generated by Wave Energy Converters Abstract approved: H. Tuba Özkan-Haller The eventual

Wave propagation processes at the mouth of the Columbia River

Creator:: Andes, Lisa (Lisa Christine)
Abstract:: The mouth of the Columbia River (MCR) has a longstanding reputation of hazardous navigational conditions. This reputation has been developing since the first ship, the Columbia, traversed through the inlet in 1792. The hazardous conditions are related to the large waves and strong tidal currents that are common in the...
Resource Type:: Masters Thesis
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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

Nearshore wave predictions along the Oregon and southwest Washington coast

Creator:: García-Medina, Gabriel
Abstract:: This thesis contains a manuscript describing the implementation of a high resolution wave forecasting model for the coasts of Washington and Oregon. The purpose of this project was to advance the wave predictive capabilities of the states of Oregon and the southwest part of Washington by including the effects of...
Resource Type:: Masters Thesis
Full Text:: : _____________________________________________________________________ H. Tuba Özkan-Haller This thesis contains a manuscript describing the implementation of a

Wave modeling at the mouth of the Columbia River

Creator:: Kassem, Sarah
Abstract:: As the second largest river in the U.S., the entrance to the Columbia River is home to some of the most extreme wave conditions on the Pacific Coast. Winter storms commonly generate waves 6-8 m in height, which in combination with strong tidal currents, can produce dangerous navigation conditions. To...
Resource Type:: Masters Thesis
Full Text:: of the Columbia River Abstract approved: H. Tuba Özkan-Haller As the second largest river in the

Nearshore hydrodynamic model comparisons and predictions of bathymetric evolution

Creator:: Lescinski, Jamie M.
Abstract:: The surf zone exhibits large energetic signals from wave shoaling and subsequent dissipation due to breaking, forcing circulation. The bathymetry responds to the wave and wave-induced circulation with the growth, transport, and destruction of large scale bathymetric features, such as mega ripples and sand bars. There is an obvious fluctuation...
Resource Type:: Masters Thesis
Full Text:: Abstract approved:-------- ........ ----------------- H. Tuba Ozkan-Haller The surf zone exhibits large

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:: : ____________________________________________________________________ H. Tuba Özkan-Haller This study presents a methodology for power take off (PTO) forecasting

Weather and large waves along the Oregon coast: atmospheric controls on a numerical wave model

Creator:: Ellenson, Ashley N.
Abstract:: In this study, the effects of implementing different wind input or physics packages in a numerical wave model to recreate large wave conditions are explored. Three large wave events are simulated with WaveWatch III. The wind inputs which are compared are NCEP's Global Forecasting System (GFS) with 0.5 degree resolution...
Resource Type:: Masters Thesis
Full Text:: acknowledge my committee members, H. Tuba Özkan-Haller, Jim Thomson, and Merrick Haller for their guidance

Ensemble-based data assimilation and depth inversion on the Kootenai River, ID, USA

Creator:: Landon, Kyle C.
Abstract:: Velocity measurements from drifter GPS records are assimilated and used in an ensemble-based inversion technique to extract the river bathymetry. The method is tested on a deep meandering reach and a shallow braided reach of the Kootenai River in Idaho, USA. The Regional Ocean Modeling System (ROMS) is used to...
Resource Type:: Masters Thesis
Full Text:: like to thank my advisor, Tuba Özkan-Haller. Tuba has been an integral part of my research, helping

Using Magnetotellurics Towards Imaging the Primary Magma Reservoir in the Cotopaxi Volcano, Ecuador

Creator:: Angel, Kaitlan W. E.
Abstract:: In this study, 3D finite difference and 2D finite element forward modeling were used to create an electromagnetic sensitivity analysis for the Cotopaxi volcano in Ecuador. Magnetotellurics (MT) is a natural-source electromagnetic geophysical technique that images electrical conductivity. Measuring strong contrasts in electrical conductivity in volcanic materials allows for the...
Resource Type:: Masters Thesis
Full Text:: Tuba Özkan-Haller In this study, 3D finite difference and 2D finite element forward modeling

Field validation of a nearshore circulation model for alongshore-nonuniform flows

Creator:: Wilson, Gregory W.
Abstract:: We investigate, theoretically and experimentally, the problem of modeling depth-integrated (2DH) surf zone circulation on an alongshore-nonuniform natural beach, with waves approaching from an arbitrary angle. An approximate theoretical model is developed, which captures the important effect of advection in the alongshore dynamics, and shows that a nondimensional parameter Re[subscript]s...
Resource Type:: Masters Thesis
Full Text:: Nearshore Circulation Model for Alongshore-Nonuniform Flows Abstract approved: H. Tuba Özkan-Haller

Large-scale laboratory observations of wave breaking turbulence on a fixed barred beach

Creator:: Scott, Christopher P.
Abstract:: This thesis presents the details of a large-scale laboratory experiment to study the turbulence generated by waves breaking on a fixed barred beach. The data set includes comprehensive measurements of free surface displacement and fluid velocity for one random and one regular wave case. Observations of the time-averaged turbulent kinetic...
Resource Type:: Masters Thesis
Full Text:: questions and encouragement from my cont mnbers, avtkic Hailer and Tuba kan-Hailer, are much appreciated

Nowcast/forecast of storm surge and drawdown using a hybrid FE/ANN approach

Creator:: Darnell, Joel T.
Abstract:: In the northwestern Gulf of Mexico there is a need for reliable water level forecasts to facilitate safe commercial navigation, marine construction, and emergency management. Though the low amplitude tides of the region can be predicted with conventional harmonic techniques, frequent strong storms make accurate forecasts of water levels difficult....
Resource Type:: Masters Thesis
Full Text:: last 4 years and my committee members, Dr. Merrick Hailer and Dr. Tuba Ozkan-Haller, for their

Assessing physical vulnerability of the coast in light of a changing climate : an integrated, multi-hazard, multi-timescale approach

Creator:: Harris, Erica L.
Abstract:: Hazards threaten coastal communities and ecosystems over a wide range of spatiotemporal scales. One of the most pressing concerns for coastal property owners, decision makers, and researchers is the uncertain role that a changing climate will have on the intensity and frequency of these hazards. The significant uncertainties associated with...
Resource Type:: Masters Thesis
Full Text:: under NOAA Grant #NA06OAR4170010. To my committee members, Jonathan Allan and Tuba Ozkan-Haller

Eddy correlation benthic O₂ exchange rates and characterizations of sediment properties from the central Oregon shelf at 30 meters

Creator:: McCann-Grosvenor, Kristina
Abstract:: Rates of benthic O₂ exchange are important measurements for determining organic matter remineralization, and can shed light on factors driving biogeochemical processes in coastal environments. Measurement of in situ O₂ consumption and production within permeable sediments, such as those found over ~43% of the Oregon-Washington shelf, has traditionally been done...
Resource Type:: Masters Thesis
Full Text:: acknowledge the hard work of Tuba Özkan-Haller for all of her help with the physical oceanography

Modeling Eddy Correlation Biases Created by Velocity Sensitivities of Clark-type Oxygen Microelectrodes Under Waves

Creator:: Albright, Andrea and Albright, Andrea T. P.
Abstract:: Field deployments, flume experiments, and a 2D wave model have been used to identify the characteristics of Clark-type oxygen microelectrodes and measurement parameters that could possibly bias eddy correlation (EC) flux measurements made under waves. Eddy correlation is a technique adapted from atmospheric sciences that couples concurrent and co-located velocity...
Resource Type:: Capstone Project
Full Text:: . Thanks to Tuba Özkan-Haller for teaching me about wave theory and providing the seeds to many of the

Remote sensing of radiation stress gradients from optical imagery

Creator:: Killian, Jason R.
Abstract:: Wave-induced circulation is the defining characteristic of the nearshore. Within this region, the constant feedback cycle between incoming waves, wave-generated currents, and the mobile sediment bed is responsible for the evolution of complex patterns in nearshore and beach morphology. Central to our understanding of this system is knowledge of the...
Resource Type:: Masters Thesis
Full Text:: help me finish this project, and my committee members, Mick Haller and Tuba Özkan-Haller, for their

Wave-by-Wave Forecasting via Assimilation of Marine Radar Data

Creator:: Simpson, Alexandra Joyce
Abstract:: A wave-by-wave forecasting system is desired for optimization of wave energy conversion devices and for improving safety of vessel-based marine operations. This study outlines the first validation attempts of a recently developed forecasting system called Wavecast. The forecasting approach uses X-Band marine radar images for data assimilation, then reconstructs and...
Resource Type:: Masters Thesis
Full Text:: like to acknowledge. To my committee members, Tuba Özkan-Haller, Ted Brekken and Geoff Hollinger

Analysis of rip current embayments on the Oregon coast

Creator:: Dalon, Matthew M.
Abstract:: Understanding the past, present, and future behavior of our nation's shorelines is vital for sensible coastal management. Localized areas of erosion, termed "erosional hot spots", can shift the shoreline landward threatening coastal infrastructure (Kraus and Galgano, 2001; Stauble and Gravens, 2004; McNinch, 2004). One specific type of erosional hot spot...
Resource Type:: Masters Thesis
Full Text:: my other committee members; Tuba Ozkan-Haller, Peter Ruggiero, and Roger Graham. Together this

Analysis of waves in the near-field of wave energy converter arrays through image processing

Creator:: Black, Colleen
Abstract:: Oregon State University conducted a series of laboratory experiments to measure and quantify the near-field wave effects caused within arrays of Wave Energy Converters (WEC). As the waves and WECs interact, the WECs generate radiated waves; these effects vary with the location within the array. Analyzing the near-field waves will...
Resource Type:: Masters Thesis
Full Text:: Abstract approved: ______________________________________________________ Merrick C. Haller

On the nearshore impact of wave energy converter arrays

Creator:: O'Dea, Annika Magnuson
Abstract:: Radiation stresses, defined as the excess flow of momentum due to the presence of waves (Longuet-Higgins, 1964), are the main drivers behind the cross-shore and longshore forcing that results in wave setup, set-down, and longshore currents (e.g. Svendsen, 2006). Longshore currents entrain and transport sediment and therefore play an important...
Resource Type:: Masters Thesis
Full Text:: , Peter Ruggiero, Tuba Özkan-Haller, and Emily Shroyer for their feedback. Finally, I would like to

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:: . Thank you to my committee members, Dan Cox, Peter Ruggiero, Tuba Ozkan- Haller, and John Simonsen for

Coupled wave and surge modeling of Tillamook Bay, Oregon : extreme events and climate change impacts

Creator:: Cheng, Tiffany Kay
Abstract:: Estuaries represent the confluence of land and ocean environments and encompass a number of complex interactions amongst tides, winds, offshore waves and the riverine contributions, all of which contribute to total water levels (TWLs). The study of TWLs and the relative weight of its components can assist local communities in...
Resource Type:: Masters Thesis
Full Text:: Ozkan-Haller and Peter Ruggiero for their insightful critiques and suggestions along the way. With Dr

Assessment of the Active Absorption System of the Large Wave Flume

Creator:: Savić, Una
Abstract:: The Large Wave Flume at the O.H. Hinsdale Wave Research Laboratory houses a piston wavemaker with a built-in active absorption system designed by MTS Systems Corporation. The performance of the active absorption system has not been properly assessed yet. This thesis evaluates the performance of the MTS active absorption system...
Resource Type:: Masters Thesis
Full Text:: . I would like to thank Tuba Ozkan-Haller for always being willing to listen and to Harry Yeh for

On the Imaging of Rip Currents in X-band Radar

Creator:: Kloster, Rebecca
Abstract:: Rip currents pose a serious danger to visitors of bathing beaches; they are also an important process in surf zone circulation. Haller et al. [2014] demonstrated that shore-based X-band radar can be used to compliment in situ measurements of rip currents. However, little is known of the underlying radar imaging...
Resource Type:: Masters Thesis
Full Text:: , Tuba Özkan-Haller, Dan Cox, and Ed Brook, for their feedback. Last, I would like to thank the

Laboratory observations and numerical modeling of the effects of an array of wave energy converters

Creator:: Porter, Aaron K.
Abstract:: This thesis investigates the effects of wave energy converters (WECs) on water waves through the analysis of extensive laboratory experiments, as well as subsequent numerical simulations. Data for the analysis was collected during the WEC-Array Experiments performed at the O.H. Hinsdale Wave Research Laboratory at Oregon State University, under co-operation...
Resource Type:: Masters Thesis
Full Text:: : Merrick C. Haller This thesis investigates the effects of wave energy converters (WECs) on water waves

Simulating extreme total water levels using a time-dependent, extreme value approach

Creator:: Serafin, Katherine A.
Abstract:: Coastal flood hazard zones and the design of coastal defenses are often devised using either the maximum recorded total water level (TWL) or a 'design' event such as the 100-year return-level flood, usually projected from observed extreme events. Despite technological advances driving more consistent instrumental records of wave heights and...
Resource Type:: Masters Thesis
Full Text:: is inspiring. To my other committee members, Rob Holman and Tuba Ӧzkan-Haller, thank you for your

The wave energy resource of the US Pacific Northwest

Creator:: Lenee-Bluhm, Pukha
Abstract:: The substantial wave energy resource of the US Pacific Northwest (i.e. off the coasts of Washington, Oregon and N. California) is assessed and characterized. Archived spectral records from ten wave measurement buoys, operated and maintained by the National Data Buoy Center and the Coastal Data Information Program, form the basis...
Resource Type:: Masters Thesis
Full Text:: committee members, Dr. H. Tuba Ozkan- Haller, Dr. Solomon Yim, Dr. Joe Zaworski and Dr. Bart Eleveld, for

An investigation on the modeling of wave field transformation and shoreline morphology near steep bathymetric features

Creator:: Michalsen, David R.
Abstract:: Steep bathymetric anomalies in the beach profile, such as offshore borrow pits, submerged breakwaters, and nearshore canyons can significantly transform the wave climate through the effects of refraction, diffraction, and reflection. When located in the nearshore region the modified wave climate can also substantially change the location of breaking and...
Resource Type:: Masters Thesis
Full Text:: also like to thank Dr. K.D. Suh and Dr. Tuba Ozkan-Haller whose knowledge was a tremendous asset with

A laboratory experiment on sand bar migration with comparisons to recent models

Creator:: Magalen, Jason
Abstract:: Successful prediction of nearshore sediment migration is important in determining the vulnerability of a coastline. During energetic wave climates (storm events) sediment rapidly erodes from beaches and is deposited offshore. In subsequent milder wave conditions, the sediment migrates shoreward, accreting on the beach and helping to protect the coastline. It...
Resource Type:: Masters Thesis
Full Text:: the value of questioning my results. I would like to thank Dr. Tuba Ozkan-HaIler for her

Wave-by-wave Forecasting of Sea Surface Elevation for WEC Applications Utilizing NARX Neural Networks

Creator:: Gillespie, Alice
Abstract:: Forecasting of ocean waves over a short duration on the order of tens of seconds was approached with the optimization of wave energy conversion in mind. This study outlines the development of an artificial neural network model, specifically the Nonlinear Autoregressive Network with Exogenous Input (NARX), to predict a wave-by-wave...
Resource Type:: Masters Thesis
Full Text:: : ______________________________________________________ Merrick C. Haller Forecasting of ocean waves over a short duration on the order of tens

Calibration, characterization, and linear quadratic Gaussian estimation of sensor feedback signals for a novel ocean wave energy linear test bed

Creator:: Haller, Christopher A.
Abstract:: Continual growth of the world's energy consumption and the demand for long-term clean renewable energy resources has led to the development of ocean-based wave energy technologies. Emerging technologies are advancing potential solutions to the complex problem of energy generation in the harsh and corrosive ocean environment. To develop these technologies,...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Christopher A. Haller for

Educational and occupational aspirations of Oregon tenth grade girls

Creator:: Haller, Michele Suzanne
Abstract:: Purposes and Method of Study The purpose of this study was to find out if tenth grade girls were aware of the probability that a majority of them would work at some time during their lives, and if they planned to prepare for this possibility. A questionnaire was designed and...
Resource Type:: Masters Thesis
Full Text:: grade girls AN ABSTRACT OF THE THESIS OF MICHELE SUZANNE HALLER for the MASTER OF SCIENCE (Name

Hybrid approach to estimating nearshore bathymetry using remote sensing

Creator:: Catalán Mondaca, Patricio A.
Abstract:: The characterization of bathymetry and its time evolution is very important for both oceanographic science applications, and for societal reasons relating to coastal engineering and development. Historically, the process of depth surveying has been costly and labor-intensive. This is especially true in nearshore regions, hence a method that is both...
Resource Type:: Masters Thesis

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:: situ Stratification via Remotely-sensed Internal Wave Speeds Abstract approved: Merrick C. Haller

Observations on the evolution of shoaling nonlinear internal waves in Massachusetts Bay using shipboard X-band radar

Creator:: Nelson, Brian G.
Abstract:: During four cruises in July and September of 2008 and 2009, the shipboard X-band radar was tuned to detect the modulated bands of surface roughness caused by converging and diverging currents associated with high-frequency nonlinear internal wave (NLIW) packets. The data collected was used to quantify the propagation direction (ϴp),...
Resource Type:: Masters Thesis
Full Text:: Beam Width (H): 1.23 dgrs Frequency: 9.410gHz ± 0.030 gHz Beam Width (V): 20 dgrs TR Unit: RTR-079

Evaluation of Stereoscopic Camera Systems for Non-Intrusive Spatial Free Surface Measurement in Coastal Research Laboratories

Creator:: O'Day, Christopher S.
Abstract:: Physical modelling is instrumental to the progression of coastal engineering research and our understanding of the offshore and nearshore environments. Scaled models are designed and built to be tested in coastal research laboratories, where a wave basin or flume generates the desired wave conditions for experimentation. The surrounding hydrodynamics of...
Resource Type:: Masters Thesis
Full Text:: ............................................................................................................... 87 6.1.1 Shore Normal (H = 0.5 m, T = 1.8 s, θ = 0 deg, h= 1m

Evaluation of the performance of a taut-moored dual-body direct-drive waveenergy converter through numerical modeling and physical testing

Creator:: Elwood, David E.
Abstract:: With energy prices rising and increasing concern about the influence of fossil fuels on climate change, wave energy systems are on the verge of commercial implementation. These first generation wave energy converters utilize either pneumatics or hydraulics to convert the mechanical energy of waves into electricity. For the last several...
Resource Type:: Masters Thesis

Coastal sand dunes in the U.S. Pacific Northwest : regional variability in foredune geomorphology and associated physical vulnerability to hazards

Creator:: Mull, Jeremy M.
Abstract:: Coastal foredunes protect lives, infrastructure, and ecosystems during severe winter storms. In the U.S. Pacific Northwest (PNW), coastal foredune geomorphology is determined by both physical and ecological mechanisms. Before the 1900's, the native plant Elymus mollis was the dominant dune grass and dune morphology was largely determined by sediment supply...
Resource Type:: Masters Thesis
Full Text:: Merrick Haller and David Hill. Their advice on specific analyses and reviews of this document were

Hydrodynamic loads on fiber-optic micro cables

Creator:: Evans, Matthew R.
Abstract:: A Finite Element Model of a deployed Fiber-Optic Micro Cable (FOMC) was performed using the marine cable modeling software, OrcaFlex. The focus of this study was a parametric analysis of a two-part, towed cable array with the FOMC dragged behind a depressor and connected to a drogue chute. Length-to-diameter ratios...
Resource Type:: Capstone Project
Full Text:: opportunities and needs. My committee members, Dr. Dan Cox and Dr. Merrick Haller, not only supported this

The morphology of the reproductive system of the black vine weevil, Brachyrhinus sulcatus (F.)

Creator:: Cram, William Thomas
Resource Type:: Masters Thesis
Full Text:: spermatliecal duct is a long, elastic and very narrow tuba, the outer 'waU of which is a layer of soft chitin

Effect of processing and storage on the texture of canned berries

Creator:: Rao, Akkinapally Venketeshwer
Abstract:: The texture of processed berry fruits changes both during processing and subsequent storage. A study was made of these changes in processed strawberries, raspberries, blackberries, and blue- berries, spin-cooked and stored at 100°F. for 28 days in tin and glass containers. Four samples, from each of the two replications of...
Resource Type:: Masters Thesis
Full Text:: approved (Major Professor) /H The textur(g--of processed berry fruits changes both during pro- cessing

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

An evaluation of a water, sanitation, and hygiene (WASH) program for rural communities in northern Afghanistan

Creator:: Costello, Denise H.
Abstract:: The Water, Sanitation and Hygiene (WASH) sector of international development works to increase access to sustainable, safe water and improved sanitation. Currently, at least 780 million people live without clean drinking water and 2.5 billion without access to improved sanitation (UNICEF & World Health Organization, 2012). Lack of access to...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Denise H. Costello for the

Overexpression of the GROWTH REGULATING FACTOR 4-GRF-INTERACTING FACTOR 1 Transcription Factor Chimera Modifies Transformation and Regeneration Efficiency in Populus and Eucalyptus

Creator:: Ryan, Nathaniel W.
Abstract:: Transformation is a major bottleneck for genetic engineering and gene editing in forest tree species. This includes most genotypes of Populus and Eucalyptus, which are some of the world’s most widely-cultivated genera of plantation forest trees. To provide new tools for transformation, I tested the transcription factor-protein chimera consisting of...
Resource Type:: Masters Thesis
Full Text:: Steven H. Strauss Transformation is a major bottleneck for genetic engineering and gene

Numerical and Analytical Modeling of Temperature Evolution in Laser Processing of Materials

Creator:: Ball, Stefan R.
Abstract:: The ultimate goal of this work is to analyze and compare two predictive models of thermal profile in laser processing of materials. An analytical method that uses closed-form equations to represent a geometric model of a laser heat source will be contrasted with a commercial computational fluid dynamics code that...
Resource Type:: Masters Thesis
Full Text:: speed of the heat source to the medium, 𝑇 is temperature, 𝜌 is density, 𝑘 is conductivity, ℎ is

Contact and impact dynamic modeling capabilities of LS-DYNA for fluid-structure interaction problems

Creator:: Challa, Ravi
Abstract:: Fluid-structure interaction (FSI) is a very interesting and challenging multi-disciplinary field involving interaction of a movable or deformable structure with an internal or surrounding fluid flow. FSI plays a pivotal role in many different types of real-world situations and practical engineering applications involving large structural deformation and material or geometric...
Resource Type:: Masters Thesis
Full Text:: thankful to Prof. Harry Yeh and Prof. Merrick Haller for imparting the basic principles in ocean

Predicting deep water breaking wave severity

Creator:: Hovland, Justin
Abstract:: Ocean Wave Energy Converters (WECs) operating on the water surface are subject to storms and other extreme events. In particular, high and steep waves, especially breaking waves, are likely the most dangerous to WECs. A method for quantifying the breaking severity of waves is presented and applied to wave data...
Resource Type:: Masters Thesis
Full Text:: of gravity (m/s2) h Water depth (m) H Wave height (m) Hm0 Spectrally derived significant wave

Wave Resource Assessments: Spacio-Temporal Effect of Wave Energy Converter Scale and Blue Economy Opportunities

Creator:: Dunkle, Gabrielle R.
Abstract:: Wave energy has the potential to power large and small factions of economies around the world alike. Current methods for determining the amount of wave energy resource available to wave energy converter (WEC) devices entail capturing the look of the sea state at large by presenting characteristic wave heights, periods,...
Resource Type:: Masters Thesis
Full Text:: thank my committee members Dr. Meagan Wengrove, Dr. Merrick Haller, and Dr. Edward Dever for their

Morphodynamic Evolution of Coastal Oregon: Using New Lidar-derived Beach and Sand Dune Morphometrics to Explore Multi-decadal Change

Creator:: Light, Jacob W
Abstract:: The coast of Oregon is highly dynamic, with beach and dune morphodynamics constantly evolving in response to physical and ecological forcing at scales ranging from seconds to decades and meters to tens of kilometers. Evaluating spatial and temporal trends in shoreline evolution is paramount in understanding and eventually developing a...
Resource Type:: Masters Thesis
Full Text:: committee members Dr. Merrick Haller, Dr. Meagan Wengrove, and Dr. Rick Colwell for their support and

A Techno-Economic Assessment Methodology for Advanced Additive and Joining Processes

Creator:: Malshe, Harsha A.
Abstract:: Integrated manufacturing systems, a combination of subtractive, additive, and joining processes, provide a competitive advantage for manufacturing organizations. As product designs become more complex and capital more scarce, an ideal combination of advanced manufacturing technologies (e.g., powder bed fusion or friction welding), in tandem with traditional subtractive manufacturing systems, can...
Resource Type:: Masters Thesis

Application of Motion Capture Technologies to Assess the Free Surface and Track Waterborne Debris in Wave Research Laboratories

Creator:: Shultz, Jamie
Abstract:: In coastal and ocean engineering, understanding the ocean environment and the forces from waves, tsunamis and waterborne debris on structures and floating bodies is an important aspect of designing safe and effective infrastructure. Understanding the impact of these forces on structures becomes an important question in the design process. Answering...
Resource Type:: Masters Thesis
Full Text:: A and B value, the wave height calculated from the B value, and kh and h calculated from this wave

Development of a Cartesian-grid-based solver for an oscillatory boundary layer over a rough wall

Creator:: Skitka, Joseph M.
Abstract:: Predominant models for predicting rates of sediment transport face acute shortcomings when applied to coastal boundary layers. This is due to a neglect of the web of stochastic variables governing the rate of sediment dislodgement. While stochastic models do exist, the parametric extent of their validity tends to be limited,...
Resource Type:: Masters Thesis
Full Text:: , my labmates Chaitanye Ghodke and Justin Finn, my masters thesis committee: Dr. Merrick Haller, Dr

Effect of several apple rootstocks on growth, yield components and leaf area estimates on "Starkspur Supreme Delicious" trees

Creator:: Siller-Cepeda, Jorge H.
Abstract:: Growth, yield components and leaf area were evaluated on 'Starkspur Supreme Delicious' apple on nine rootstocks: MAC 24, EMLA 7, EMLA 26, OAR 1, MAC 9, 0.3, EMLA 9, M 9, and EMLA 27. Estimates of planting density based on growth, estimates of leaf area based on four independent variables...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Jorge H. Siller-Cepeda for the

Light-frame versus timber frame : a study in quantifying the differences

Creator:: Malone, Brian P.
Abstract:: The objective of this study was to compare light wood framing and traditional timber framing quantitatively through environmental impact assessment and load path analysis. This research was inspired by a traditional timber frame structure constructed in Vermont in 2011, and the design of structures considered within reflect the general characteristics...
Resource Type:: Masters Thesis
Full Text:: in Quantifying the Differences Abstract approved: Rakesh Gupta Thomas H. Miller The

Effect of an Idealized Mangrove Forest of Moderate Cross-shore Width on Loads Measured on a Sheltered Structure and Comparison with Predicted Forces

Creator:: Mitchell, William T.
Abstract:: As coastal communities face increasing chronic and acute hazards, nature-based coastal engineering solutions have experienced a rapid growth in popularity and interest. Recent works on this topic have shown that “Green Infrastructure” may be effective at mitigating coastal hazards and therefore provide sustainable adaptation alternatives to traditional engineering solutions such...
Resource Type:: Masters Thesis
Full Text:: encouraging me to present the work as a thesis  Merrick Haller for serving on my committee, providing

Computational Study of Smoldering Combustion in Cellulose and Hemicellulose Mixtures

Creator:: Mulky, Tejas Chandrashekhar
Abstract:: Due to global warming wildland fires are increasing in frequency and severity. In the case of wildland fires, the major modes of combustion occur include smoldering combustion and flaming combustion. Smoldering combustion occurs most commonly in porous fuels like peat, forest duff, and woody fuels, which are available in abundance...
Resource Type:: Masters Thesis
Full Text:: (c, k, ρwet, and ∆H) was changed to its value for 70% moisture content while holding all other

Model Predictive Control for Underwater Robots in Ocean Waves

Creator:: Fernández, Daniel C.
Abstract:: Underwater robots beneath ocean waves can benefit from feedforward control to reduce position error. This thesis proposes a method using Model Predictive Control (MPC) to predict and counteract future disturbances from an ocean wave field. The MPC state estimator employs a Linear Wave Theory (LWT) solver to approximate the component...
Resource Type:: Masters Thesis
Full Text:: water depth, but instead is simply proportional to the squared wave height term (H). The rate at which

Energy-efficient clock generation for communication and computing systems using injection locking

Creator:: Ma, Chao
Abstract:: The design of high-performance, high-speed clock generation and distribution becomes challenging in terms of phase noise, jitter and power consumption, due to the fast development of communication and computing systems. Injection locking is a promising clocking technique since it can significantly improve the energy efficiency, suppress the phase noise of...
Resource Type:: Masters Thesis
Full Text:: helps in and after classes. I am grateful to Prof. Merrick C. Haller for taking the time to serve as

Accelerating the convergence of the k-eigenvalue problem using a coarse mesh finite differencing scheme in cylindrical geometry

Creator:: Hummel, Andrew J.
Abstract:: Reactor modeling is largely limited by the computational time required to perform accurate full core calculations. There are many different methods and techniques employed in different reactor simulation codes, but properly modeling all of the physics that takes place in the system requires extensive computational effort. The Coarse Mesh Finite...
Resource Type:: Masters Thesis
Full Text:: method in PARCS for cylindrical geometry. The Need T/H, Xe/Sm, and XSUPD boxes can only be invoked

Time-domain modeling of heaving point absorber wave energy converters, including power take-off and mooring

Creator:: Ruehl, Kelley
Abstract:: Wave energy conversion is still in its infancy, and in order for it to become a commercially viable technology, developers, investors and utilities need to estimate a Wave Energy Converter's (WEC's) performance for the wave climate of a potential installation site. With the goal of estimating a design's power output...
Resource Type:: Masters Thesis
Full Text:: absorber model is subject to an incident wave η(t), and is moored to the sea floor at water depth h

Enhancing Resolution and Scalability of Power Grid Reliability Algorithms

Creator:: Lassetter, Austin R.
Abstract:: This Thesis aims to determine whether we can improve the accuracy, resolution, and speed of calculations for common power system problems using simple computational models that scale well to machine learning and high performance computing solutions. The second chapter of this Thesis implements more precise aging and degradation models for...
Resource Type:: Masters Thesis

Radiometric Calibration of EAARL‐B Bathymetric Lidar Data

Creator:: Wilson, Nicholas C.
Abstract:: The Experimental Advanced Airborne Research Lidar ‐ B (EAARL‐B), which was built and deployed by the U.S. Geological Survey (USGS) in 2014, is a novel topographic‐bathymetric lidar system. While retaining a number of features that were pioneered in the original National Aeronautics and Space Administration (NASA) EAARL system (e.g., low...
Resource Type:: Masters Thesis
Full Text:: also like to thank my committee members Michael Olsen, Merrick Haller and Jamon Van Den Hoek for

John Turberville Needham (1713-1781) and eighteenth century theories of generation

Creator:: Benson, Keith Rodney
Abstract:: There were two viable theories of generation, preformation and epigenesis, existing in the Seventeenth and Eighteenth Centuries. Due to their irreconcilable nature, they were often at loggerheads during this time interval. The status of these generation theories can be effectively understood in terms of Thomas Kuhn's conception of preparadigm science....
Resource Type:: Masters Thesis
Full Text:: conflict. As a result, he joined the ranks of other natural philosophers (Maupertuis, Haller, Buffon and

Moisture Resistance of Wood-Based Composite Materials

Creator:: Molina, Luis
Abstract:: Dimensional stability of wood-based composites with changing moisture content remains an important challenge in the industry for many applications. Wood modification technologies have shown significant improvement in dimensional stability by altering the chemistry of the wood substrate, or by filling the available space in the wood microstructure that otherwise would...
Resource Type:: Masters Thesis
Full Text:: swelling values. The mean TS values for MDF materials after 192 h of water spray exposure were

Macrophage infection with wild-type Mycobacterium avium or isogenic attenuated PPE mutant revealed differences in gene expression and mycobacterial vacuole proteins

Creator:: Jha, Samradhni
Abstract:: Mycobacterium avium is a ubiquitous environmental organism found in water and soil. It can cause disease in patients with pre-existing pulmonary conditions, immunocompromised patients with the most prevalent being AIDS patients, as well as apparently healthy people. Studies have indicated that, upon macrophage uptake, Al. avium prevents phagosome-lysosome fusion, thus...
Resource Type:: Masters Thesis
Full Text:: different from isogenic PPE mutant phagosomes at 30 mm, 4 h and 24 h. The proteins identified in the

Methods for evaluating the impact of renewable resource variability on grid operation and planning

Creator:: Halamay, Douglas A.
Abstract:: With the recent interest in increasing the penetration of renewable energy sources onto the power grid, there has been an unprecedented rapid deployment of wind generation, especially in the US Pacific Northwest. While wind farm developers have continued to expand their operations, power system operators are left to deal with...
Resource Type:: Masters Thesis
Full Text:: also like to gratefully acknowledge the assistance of Dr. Tuba Ozkan-Haller in developing the code

Chemical composition of dietary fiber and polyphenols of wine grape pomace skins and development of wine grape (cv. Merlot) pomace extract based films

Creator:: Deng, Qian
Abstract:: The objectives of this project were to investigate the chemical composition of five varieties of wine grape pomace (WGP) skins obtained in the Pacific Northwest of the United States with the emphasis on dietary fiber (DF) and polyphenolic compounds, and further to evaluate the feasibility of developing WGP extract based...
Resource Type:: Masters Thesis
Full Text:: by the haze percentage of water after 24 h of film immersion (52.8%) than that of TF-PE (25.7%) and

The Oregon Nearshore Research Inventory Project : the importance of science and the scientific research community in marine spatial planning

Creator:: Sherman, Kate
Abstract:: The purpose of Oregon's Nearshore Research Inventory (NRI) project was to inventory and map the current and future use of Oregon's nearshore environment by the scientific research community for use in Oregon's marine spatial planning process. Spatial and qualitative data on the use of Oregon's ocean and coast by the...
Resource Type:: Masters Thesis

An electronic tachometer for measuring the relative angular displacement of rotating machines

Creator:: Michael, Robert Ray
Resource Type:: Masters Thesis
Full Text:: assuming c2 very small compared to c1 , the voltage change on c 1 per pulse is E/h =- e:C2/c1 ( 8)j

Genetic analysis of malt extract and grain yield in a spring barley (Hordeum vulgare L.) cross

Creator:: Ozdemir, Ergun
Resource Type:: Masters Thesis
Full Text:: CD0669 4.6 CD0669 BCD402B 14.0 BCD402B TubA 1 10.3 TubA 1 ABG3 4.8 ABG3 ABG484 5.4 ABG484 WG464 10.4

Experimental Validation of the Hydrodynamic Coefficients for an Oscillating Water Column Wave Energy Converter

Creator:: Bentivoglio, Marine M. J.
Abstract:: Resulting from the action of wind over open water surfaces, water waves contain colossal amounts of energy that has not yet been harnessed. Seen as a very promising source for renewable energy generation, many studies have tried to make wave energy a cost competitive source by investigating optimal designs of...
Resource Type:: Masters Thesis
Full Text:: of H=0.15m, H=0.30m and H=0.45m

Regional scale sandbar variability : observations from the U.S. Pacific Northwest

Creator:: Di Leonardo, Diana R.
Abstract:: Understanding sandbar dynamics and variability is integral to developing a predictive capacity for nearshore flows, sediment transport, morphological change, and ultimately for determining coastline exposure to damaging storm waves. Along the high-energy U.S. Pacific Northwest (PNW) coast, sandbars typically dominate the bathymetry of the active zone. Here we report on...
Resource Type:: Masters Thesis

The impact of physical and biological properties on the erodibility of sediments along the western Adriatic Sea, Italy

Creator:: Stevens, Andrew W.
Abstract:: During two cruises in February and June of 2003, the erodibility of sediment along the western Adriatic Sea was measured using a "Gust erosion chamber". In addition, the surficial sediment properties were characterized through a suite physical and biological measurements including porosity, grain-size, inorganic carbon, organic carbon and colloidal carbohydrate....
Resource Type:: Masters Thesis
Full Text:: Fred Prahl, Tuba Ozkan-Haller, and graduate representative John Schmitt and I thank them for their

Evaluating Community Engagement in Wave Energy Siting off the Oregon Coast

Creator:: Goodwin, Briana
Abstract:: The ocean off Oregon's coast is a busy place with many activities occurring that can sometimes be in competition or cooperation. Deciding how new uses fit with existing ocean uses is complex, but there are some tools available to help decision-makers. Generating energy from waves is an emerging ocean use...
Resource Type:: Masters Thesis
Full Text:: , & Tortorici, 2008; Cada et al., 2007; Haller & Ozkan-‐Haller, 2013; Haxel

Cooperative product development between researchers and commercial fishermen to find applications for ocean condition forecasting technology

Creator:: Duncan, Colin
Abstract:: This is a case study of the cooperative development of an ocean condition forecasting tool by Oregon commercial fishermen, Oregon State University (OSU) scientists, and OSU student software engineers. Ocean condition forecasting models developed by OSU scientists were used to create an online tool to assist decision-making for fishermen. This...
Resource Type:: Masters Thesis

Spatiotemporal Variability in Benthic-Pelagic Coupling on the Oregon-Washington Shelf: An Investigation of Bottom Water and Benthic Flux Data

Creator:: Hughes, Anna R.
Abstract:: Continental shelf sediments are sinks for dissolved oxygen and sources of many major and minor nutrients required for oceanic surface primary production, resulting in a strong coupling between benthic and pelagic biogeochemical cycling. However, the influence and spatiotemporal variability of benthic remineralization on bottom-water chemistry and the supply of nutrients...
Resource Type:: Masters Thesis
Full Text:: Water samples for TSS and POC/PN (1 L), were immediately filtered through pre- combusted (400°C for 4 h

The plate load impedance characteristics of a push-pull audio amplifier

Creator:: Craine, Lloyd Bernard
Resource Type:: Masters Thesis
Full Text:: resistive load line may be plotted on the static characteristics if the operat- Ing point of each tuba

Exploring the Impacts of Climate and Management on Coastal Community Vulnerability through Alternative Future Scenarios

Creator:: Mills, Alexis K.
Abstract:: Coastal communities throughout the U.S. Pacific Northwest face heightened risk due to sea level rise and increasing storminess resulting in coastal flooding and erosion hazards. Incorporating uncertainty with respect to both climate change and policy decisions is essential to project the evolving probability of coastal inundation and erosion, and the...
Resource Type:: Masters Thesis

Hydroelastic modeling of a wave energy converter using the arbitrary Lagrangian-Eulerian finite element method in LS-DYNA

Creator:: Meicke, Stephen A.
Abstract:: This thesis investigates the applicability of the finite element method to model wave energy converter (WEC) hydroelasticity using LS-DYNA. The proposed methodology uses the Arbitrary Lagrangian-Eulerian formulation to model Fluid-Structure Interaction (FSI) between the WEC and the fluid elements. This formulation allows for time-domain modeling of higher order effects such...
Resource Type:: Masters Thesis

Investigating rotating microelectrodes for rapid in situ detection of oxygen

Creator:: Chace, Peter J.
Abstract:: Rotating disc electrodes (RDEs) exploit the induced flushing of a radially spun electrode to increase the overall rate of analyte flux to an electrode sensing surface and its resulting signal current (i). Here initial efforts to evaluate a rotating platinum (Pt) microelectrode for efficacy as a rapid in situ dissolved...
Resource Type:: Masters Thesis
Full Text:: . 44 12. Microdisc response to dissolved oxygen. 46 13. Measurements over 8 h period at steady

Real-Time Estimation and Prediction of Wave Excitation Forces for Wave Energy Control Applications

Creator:: Ling, Bradley A.
Abstract:: Wave energy is emerging as a new potential source for renewable energy generation. However, wave energy technology is not currently cost competitive with other more mature renewable energy sources such as wind and solar. One approach that researchers and developers are taking to reduce the cost of wave energy is...
Resource Type:: Masters Thesis
Full Text:: Depth h 50 m Vertical Center of Gravity (w.r.t mean water line) n/a 0.42 m Generator Damping Raio

Munition Mobility in Mixed Grain (Sand and Cobble) Environments

Creator:: Paskoski, Jessica
Abstract:: Nearly 24% of Formerly Used Defense Sites (FUDS) containing military munitions are in the nearshore coastal zone with approximately 30% of those sites containing heterogeneous sediment compositions of gravel-sand. Previous exploration in munition mobility was performed on beaches of sandy or muddy bottoms leaving the influence of heterogeneous sediment properties...
Resource Type:: Masters Thesis
Full Text:: Station Sensors (H#) and Buried (B#) Sensors . 119 1 Introduction Underwater munitions are exposed to

Design Optimization of a Structurally Flexible Wave Energy Converter with a Direct Search Algorithm

Creator:: Berrier, Austin S.
Abstract:: Several wave energy converter designs have been recently proposed that are made of flexible materials. Flexible devices are able to generate electricity by being stretched, and are intended to simplify deployment and maintenance concerns over existing wave energy devices. Due to the relative infancy of flexible wave energy converters, however,...
Resource Type:: Masters Thesis
Full Text:: an incoming wave, and can be seen in the literature as the shorter abbreviation H(ω) as well. That is

An Evaluation of the Search Advocate Program at Oregon State University: Identifying Strengths and Opportunities for Development

Creator:: DeFelice, Jessica
Abstract:: A commitment to diversity is now quite common in the missions of colleges and universities. One of the primary barriers to hiring a diverse faculty is the role that implicit bias, or the case of identifying flawed ideas as reliable choices systematically, plays in the search and selection process. At...
Resource Type:: Capstone Project

Development of antioxidant dietary fibers from wine grape pomace and their applications as functional food ingredients

Creator:: Tseng, Angela Y.
Abstract:: Wine grape pomace (WGP), the byproduct from winemaking, is a good source of polyphenols and dietary fibers, and may be utilized as antioxidant dietary fibers (ADF) for food applications. The objectives of this thesis research were to first determine the phenolic compounds, antioxidant and antimicrobial activities in red WGP under...
Resource Type:: Masters Thesis
Full Text:: activity against bacteria, fungus and virus (Jayaprakasha, Selvi, & Sakariah, 2003; Özkan, Sagdiç

Epizoology of Erysipelothrix rhusiopathiae infection in turkeys

Creator:: Osebold, John William
Resource Type:: Masters Thesis
Full Text:: degree of KASTER OF SCIENCE August 19.50 { g I h, r g t { {n .1 . r l.a I t E F o t

Physical factors affecting the spatial distribution of infaunal bivalve assemblages and species along the continental shelf of the Pacific Northwest

Creator:: Labou, Stephanie Grace
Abstract:: The spatial distribution and abundance patterns of benthic infauna result from interactions with a host of environmental variables including sediment characteristics (percent silt-clay, grain size, total organic carbon), depth, temperature, and dissolved oxygen. This thesis focuses on the association of bivalve assemblages and species with potentially influential environmental variables along...
Resource Type:: Masters Thesis
Full Text:: . Shannon’s H’ diversity index (Shannon 1948) and Pielou’s J’ evenness index (Pielou 1966) were calculated

Habitat suitability and uncertainty : a Bayesian approach to mapping benthic invertebrate distributions

Creator:: Havron, Andrea M.
Abstract:: Mitigating for increased human impact to the seafloor associated with resource extraction activities and renewable energy development can benefit from an understanding of the distribution of sensitive marine benthic species. Habitat suitability predictive modeling is a cost effective statistical tool to infer species distribution patterns from constrained sampling locations. However,...
Resource Type:: Masters Thesis

The flow characteristics of flowing vapors through an agitated fluid catalyst bed

Creator:: Frey, John Stanley
Resource Type:: Masters Thesis
Full Text:: ._1_:____ . _E,- 6 ______ ____ 4 -- ----- ------ ___----. ___ _____ ____ 2 -H------ ----.---i

The ascorbic acid, dehydroascorbic acid and diketogulonic acid content of canned and frozen juices and beverages in relation to cost

Creator:: Jarvis, Helen Wilma
Resource Type:: Masters Thesis
Full Text:: Acid Values>aai>».#6ao60» 38 Calculation p£ Cog^ £.@g h Oz* Serving and Peg 30 Mg of Total

The effect of irradiation with ultraviolet light on chlorinated hydrocarbon insecticides : a review

Creator:: Banks, Kenneth A.
Abstract:: Pesticide chemists have recognized since the 1940's that ultraviolet light was deleterious to the insecticidal properties of certain compounds. However, it has been only within the last 15 years that a number of photodecomposition products of the chlorinated hydrocarbon insecticides have been isolated and identified. The degradation of insecticides by...
Resource Type:: Capstone Project
Full Text:: . 30:3h9—35h. Fleck, E. E. and H. L. Haller. l9h5. Compatibility of DDT with Insecticides, Fungicides

Convective mass transfer from pure liquid stationary drops to a flowing liquid

Creator:: Lockwood, Robert Addis
Resource Type:: Masters Thesis
Full Text:: . H.!.u.•s, plate etf1c1en c1es, etc., have been calculated for the standard types ot

Tribal Tourism Development on American Indian Reservations in the Western United States

Creator:: Browne, Rita-Jean
Abstract:: In their search for viable economic development opportunities, many American Indian tribes have focused their attention toward tourism development on their reservation lands. In many cases, the greatest potential for economic development and attracting income to the reservations lies in tourist trade. Although tourism may not be a tribe's primary...
Resource Type:: Capstone Project
Full Text:: for all proposals, it neglected to ascertain the legitimacy of the feasibility studies. H. Osborn

A study of the development of motion picture usage in Arizona public schools

Creator:: Shaner, Bernard Reed
Resource Type:: Masters Thesis
Full Text:: Oitre of rtlt, ftDnifth film tes tni h*ndbookø vith oolrkp:tøte deeorIptthn ôt fil s er o* * t.ting

Heat transfer between gas and solid in beds of fluidized solids

Creator:: Olson, Raymond Lloyd
Resource Type:: Masters Thesis
Full Text:: gratitude to Professor . H. Gref, Director of the Engineering Experinntoi 3tstion under the auspices of

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