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Interpolation Techniques For Overset Grids, Paul S. Sherman, Nathan B. Edgar

Journal of the Arkansas Academy of Science

The use of finite difference schemes in computational aeroacoustics requires the use of structured grids incomputational space. Complex geometries in the physical space can be modeled using multiple overlapping grids that are transformed into computational space. In this work, finite difference schemes are used that necessitate the addition of psuedo- or ghost-points in the overlap region of the grids for closure of the difference stencil. The functional values at these ghost points must be approximated from the values at the original grid points. This paper investigates interpolation techniques for these overset grids. An n th order interpolation scheme using Lagrange …

Novel High Frequency Silicon Carbide Static Induction Transistor-Based Test-Bed For The Acquisition Of Sic Power Device Reverse Recovery Characteristics, Kevin M. Speer, Ty R. Mcnutt, Alexander B. Lostetter, H. Alan Mantooth, Kraig J. Olejniczak

Journal of the Arkansas Academy of Science

A test system is presented that utilizes a high-frequency Silicon Carbide (SiC) Static Induction Transistor (SIT) in place of the traditional MOSFET to test reverse recovery characteristics for the new class of SiC power diodes. An easily implementable drive circuit is presented that can drive the high-frequency SIT. The SiC SIT is also compared to a commonly used Si MOSFET in the test circuit application.

Parameter Extraction Software For Compact Diode Model, Maruf Hossain, Edgar Cilio, Ty R. Mcnutt, Alexander B. Lostetter, H. Alan Mantooth

Journal of the Arkansas Academy of Science

No abstract provided.

Testing And Modeling Electrical Characteristics Of Novel Silicon Carbide (Sic) Static Induction Transistors (Sits), Avinash S. Kashyap, Sharmila D. Mangan Lal, Ty R. Mcnutt, Alexander B. Lostetter, H. Alan Mantooth

Journal of the Arkansas Academy of Science

No abstract provided.

Status And Distribution Of Freshwater Mussels (Unionacea) Inhabiting The Saline River / Holly Creek Bottoms Area, Saline County, Arkansas, Chris L. Davidson, Dave Gosse

Journal of the Arkansas Academy of Science

No abstract provided.

87th Annual Meeting, 2003. Secretary's Report And Financial Statement, Academy Editors

Journal of the Arkansas Academy of Science

No abstract provided.

87th Annual Meeting, 2003. Program, Academy Editors

Journal of the Arkansas Academy of Science

No abstract provided.

Journal Of The Arkansas Academy Of Science - Volume 57 2003, Academy Editors

Journal of the Arkansas Academy of Science

No abstract provided.

Nesting Willow Flycatchers Discovered At Harrison, Arkansas, William C. Holimon, Douglas A. James

Journal of the Arkansas Academy of Science

The Willow Flycatcher, Empidonax traillii (Audubon), was a newly discovered species when John James Audubon found it at Arkansas Post in 1822. The bird was fairly common in summer in prairie-scrub habitat around Arkansas at least until the 1950s. There after numbers declined until one or two individuals were found occasionally at a single site in Benton County in the late 1980s through 1990s. We found a population consisting of three nesting territories on Baker Prairie Natural Area in Harrison, Boone County, Arkansas. This represents the first confirmed nesting since 1990 and only the second since 1969. A nest with …

Perceptions Of Minorities' Criminal Involvement In Grand Rapids: Community And Media Dialogue, Rafael E. Castanon

McNair Scholars Journal

This study examines media overrepresentation and its effects on community perception. The research examines the perception of racial/ethnic involvement in violent crimes in Grand Rapids, Michigan. Grand Rapids Police Department arrest reports for violent crime were dichotomized by race/ethnicity and compared to news articles reporting violent crimes found in the Grand Rapids Press to determine if a disparity exists between those data sets. To measure public perceptions, questionnaires were administered concerning racial/ethnic groups and their likelihood to commit violent crimes. The overall intention is to provide a better understanding of root causes of minority disparity within the Criminal Justice System.

Montana Business Quarterly, Winter 2003, University Of Montana--Missoula. Bureau Of Business And Economic Research

Montana Business Quarterly, 1949-2021

This is an academic publication produced by the Bureau of Business and Economic Research (BBER) at the University of Montana’s College of Business. This is volume 41, number 4.

2003-2004 Course Catalog, University Of Montana--Missoula. Office Of The Registrar

University of Montana Course Catalogs, 1895-2024

An annual catalog of courses and course descriptions offered at the University of Montana.

Entrainment Of Electrical Activation By Spatio-Temporal Distributed Pacing During Ventricular Fibrillation, Yiping Gu

University of Kentucky Master's Theses

Spatio-temporal variation in action intervals during ventricular fibrillation (VF) suggestthat the excitable gap may also be distributed spatio-temporally. The observation leadus to hypothesize that distributed pacing can be used to modify and entrain electricalactivation during VF. We tested this hypothesis using simulated VF and animal studies.

We simulated VF in a 400 by 400 cell matrix. Simulation results showed that activationpattern could be entrained using spatially distributed stimulation. Up to a certain limit,increasing stimulus strength and density led to improved entrainment. Best entrainmentwas obtained by pacing at a cycle length similar to the intrinsic cycle length.

In order to verify …

The Ownership And Patenting Of Inventions Resulting From Stem Cell Research, John A. Lee

Santa Clara Law Review

No abstract provided.

Book Review [From Ideas To Assets: Investing Wisely In Intellectual Property], Santa Clara Law Review

Santa Clara Law Review

No abstract provided.

Patenting Genomic Technology - 2001 Utility Examination Guidelines: An Incomplete Remedy In Need Of Prompt Reform, Tanya Wei

Santa Clara Law Review

No abstract provided.

Correlation And Characterization Of Water Quality And Land Use And Land Cover In The Baker's Run Watershed, West Virginia, Mid-Atlantic Region., John Allen Gillilan

Graduate Theses, Dissertations, and Problem Reports (ETD)

Water quality variables were sampled for five years in the Baker’s Run watershed, before and during construction of a segment of Appalachian Corridor H located in the Eastern Panhandle of West Virginia. The purpose of the study was to determine if any effect from the construction could be measured and related to the cumulative change in land use and land cover. Variables sampled were turbidity, pH, conductivity, total suspend solids, alkalinity, acidity, sulfate, chloride, iron, calcium, nitrate, ammonia, phosphate, and flow. Land use/land cover was interpreted and classified from 1:24,000 digital ortho-quarter quads and correlated to changes in water quality …

E-Commerce Uses And Gratifications And Framing Study On Media Portrayal And Perspectives Of The Retail E-Commerce Web Site Industry., Margaret R. Millero

Graduate Theses, Dissertations, and Problem Reports (ETD)

This project examines how media framing, uses and gratifications theory and relationship marketing have all played important roles in the way the public, as well as editors, have viewed e-commerce Web sites and the virtual market place. A framing analysis was applied to major newspaper articles with the purpose of understanding how the media framed e-commerce Web sites and if the uses and gratifications e-commerce users were represented in the stories. Sixty articles were sampled from a variety of U.S. newspapers to understand how the media portray the industry. The results found an overwhelming number of representations of users’ uses …

Tracks In The Woods: Identifying And Evaluating Historic Logging Railroad Systems Within The Mt. Baker-Snoqualmie National Forest, Carol Taylor Hearne

All Master's Theses

The Sauk River Lumber Company (SRLC) operated in western Washington's Sauk River valley between 1922 and 1954. Impacts made on the landscape during that time can still be identified. Archival research, oral history interviews and archaeological fieldwork were undertaken to identify and evaluate the many landscape features associated with the SRLC's timber harvest activities. The systematic identification and documentation of this single company's logging operations and the features that resulted from those operations can be used to assist cultural resource managers facing the same task elsewhere. Maps, diagrams, and photographs are included to provide resource managers with basic tools and …

Gis Modeling Of Desert Root Crop Maturation On The Mid-Columbia Plateau, Mary Michelle Phillips

All Master's Theses

The settlement patterns of the prehistoric inhabitants of the Columbia Plateau were choreographed to match the cadence of the seasons, with movements timed to efficiently utilize available resources. Desert roots, such as lomatium and bitterroot, provided a primary source of dietary nutrition, yet the ideal conditions for exploiting these plant resources coalesced for a very limited time in any one location. It was therefore necessary to possess an intimate knowledge of the plants' lifecycles in order to effectively plan gathering activities. In order to predict the growth patterns and maturation rates of these desert root crops, a GIS model was …

Sediment Transport And Morphodynamics At An Estuary Mouth: A Study Using Coupled Remote Sensing And Numerical Modelling, Eduardo Siegle

School of Geography, Earth and Environmental Sciences Theses

The balance of the physical processes that drive the morphodynamics of a complex inlet system is investigated in this work. For this purpose, an innovative technique using coupled video imaging and numerical modelling has been used to study the relative importance of the driving forces that control the sandbar dynamics at the Teignmouth inlet system. The sandbars that form the ebb tidal delta are highly dynamic, leading to a cyclic morphological behaviour. Application of the numerical model (MIKE21 HD, NSW, ST) served two separate functions. The hydrodynamic model has been used for the image processing and, combined with the sediment …

A Simplified Two Dimensional Soil Model For The New Madrid Seismic Zone, Wei Zheng, Ronaldo Luna

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

The New Madrid Seismic Zone (NMSZ) is one of the most seismically susceptible areas in United States. Deep alluvial soil deposit of the Mississippi Embayment overlies the NMSZ, which remains a major uncertainty for site response analysis. based on the experiment data, a simple constitutive soil model is developed to take into account the influence of the effective confining pressure on the shear modulus degradation and the viscous damping development in soil, and also the shear strain and the plasticity index. This model is implemented into a two-dimensional finite element code in the time domain. the Rayleigh viscous damping scheme …

John Russell Bozeman Papers, Zach S. Henderson Library Special Collections

Finding Aids

This collection consists of research materials belonging to Georgia Southern College instructor, John Russell Bozeman. Materials span 1948-1994 and include research files on beach erosion, the ecology of the Georgia barrier islands, and general information on Southeastern ecology and topography.

Find this collection in the University Libraries' catalog.

Establishing Religious Ideas: Evolution, Creationism, And Intelligent Design, Kent Greenawalt

Faculty Scholarship

In this article, I first sketch the basic conflict between evolutionary theory and creationism and describe the opposition of creationists to the teaching of standard evolutionary theory. I then state the basic educational and constitutional questions

about evolution, standard creationism, and "intelligent design." After exploring of five fundamental premises that, in combination, generate the most troubling questions about science, religion, and the public schools, I turn to claims of miracles. Like assertions that God has intervened in natural processes of development, these claims suppose that God transcends or violates scientific principles; their investigation suggests that scientific principles; their investigation suggests …

Table Of Contents

Journal of Hindu-Christian Studies

Table of contents for Volume 16.

Ethics And Genetic Engineering In Indian Philosophy, And Some Comparisons With Modern Western, Harold Coward

Journal of Hindu-Christian Studies

In the context of India, Genetic Engineering research and technology is well underway. The Government of India has issued statements indicating that India "will fully utilize the availability of genetic engineering resources ... for maximizing output besides working out a sustainable program ...." Between November 22, 1998 and March 21, 1999 no less than 32 stories of genetic engineering research or technology developments appeared in India media sources - particularly the PTI News Agency and the Inter-Press Service in Delhi. The research spans a wide range from genetic studies of the human population of the Indian sub-continent to various agricultural …

Illuminating Theatre / Ariel Davis : Utah Innovator, J. Michael Hunter

Faculty Publications

The general history of stage lighting and of lighting in the Salt Lake Theatre are described. Ariel Davis (1912-1997) was a famous inventor of theatrical lighting equipment. He grew up in Provo and graduated from Brigham Young University (BYU).

Deuterium Nmr Studies Of Bulk And Silica-Absorbed Polystyrene, Macduff O. Okuom, Jinhua Yang, Frank D. Blum

Chemistry Faculty Research & Creative Works

Thin polymer films are used in applications such as electronics, biomedical devices and coatings. As the trend to make the devices smaller continues, a film's influence on a material's overall properties becomes more prominent. Previous studies have shown that thin polymer films have characteristics slightly different from those of bulk polymers. Film behavior has been characterized by examining thermal expansion, diffusion, conformation, density and glass transitions. The dynamics of glassy polystyrene has been investigated using a wide variety of theoretical and experimental methods. Schaefer et al., using 13C NMR, reported that ~7% of phenyl rings in polystyrene undergo -flips. Using …

Carrc Coal Ash Resources Research Consortium, University Of North Dakota. Energy And Environmental Research Center

EERC Brochures and Fact Sheets

Brochure on the Energy & Environmental Research Center's Coal Ash Resources Research Consortium (CARRC). CARRC is dedicated to environmentally safe and economically viable coal ash utilization. [This item is an outdated or superseded version and retained for historical purposes only. It may no longer reflect current information, policies, or practices.]

Pediatric Mobility Education Unit, Michelle Dobmeier, Brett Johnson

Occupational Therapy Capstones

No abstract provided.