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The Cataclysmic Variable Cw 1045+525: A Secondary-Dominated Dwarf Nova?, C. Tappert, J. R. Thorstensen, W. H. Fenton, N. Bennert, L. Schmidtobreick, A. Bianchini

Physics

We present spectroscopic and photometric observations of the cataclysmic variable CW 1045+525. Both the optical spectrum and the photometric lightcurve show a strong contribution of a K5V-M0V secondary. We derive an orbital period d by measuring the radial velocities of the absorption lines of the secondary. The period and spectral type of the secondary suggest a distance of 350-700 pc. There is evidence for additional sources of line- and continuum emission, but no direct evidence of an accretion disc. We discuss several scenarios for the nature of CW 1045+525 on the basis of our results, finding a dwarf nova classification …

A Geostatistical Screening Strategy For Assessing Contaminated Sediment, Yasuyo K. Makido

Masters Theses

Many environmental problems involve the collection and interpretation of spatial data. Screening methods attempt to develop efficient test procedures to determine the presence and absence of contaminants in samples. Screening methods can reduce monitoring costs and effectively identify contamination problems. Adaptive sampling has the flexibility to adjust for follow-up sampling based on the observed patterns in the population. Geostatistical method is employed for the adaptive sampling scheme. Geostatistics are statistical methodologies that use spatial coordinates to help formulate models used in estimation and prediction.

This study seeks to map Polychlorinated Biphenyls (PCBs) concentrations in sediment in Lake Allegan and Morrow …

A Theory Of Volumetric Growth For Compressible Elastic Biological Materials, Stephen M. Klisch, Timothy J. Van Dyke, Anne Hoger

Mechanical Engineering

A general theory of volumetric growth for compressible elastic materials is presented. The authors derive a complete set of governing equations in the present configuration for an elastic material undergoing a continuous growth process. In particular, they obtain two constitutive restrictions from a work-energy principle. First, the authors show that a growing elastic material behaves as a Green-elastic material. Second, they obtain an expression that relates the stress power due to growth to the rate of energy change due to growth. Then, the governing equations for a small increment of growth are derived from the more general theory. The equations …

Characteristics Of Erp Software Maintenance: A Multiple Case Study, Fiona Fui-Hoon Nah, Silvana Faja, Teuta Cata

Research Collection School Of Computing and Information Systems

A multiple case study approach was employed to identify maintenance activities pertaining to enterprise resource planning (ERP) implementation, classify them into maintenance categories, and assess their relative frequency at various stages of the ERP maintenance lifecycle. Five maintenance categories (corrective, adaptive, perfective, preventive, user support) were identified from a review of the literature on software maintenance. A new category pertaining to ‘communication, coordination and knowledge exchange with external parties’ and herein labeled ‘external parties’ is introduced to highlight the supporting role of external parties in ERP maintenance. This category includes reporting problems to vendors and consultants, tracking their progress towards …

A Meta-Analysis Of Service Learning Research In Middle And High Schools, Amy E. White

Thesis, Dissertations, Student Creative Activity, and Scholarship

This study examines the relationship between service learning innovations and improved academics, self-concept, and social or personal growth in middle and high school students. Meta-Analysis is employed to arrive at effect-size estimates for each construct. A historical overview of service learning is presented and a detailed description of the study selection process is provided. The data revealed a moderate relationship between service learning participation and academics, self-concept and social or personal growth in middle and high school students. The findings are presented, and some appropriate conclusions are drawn. A discussion of the implications of these findings and recommendations for future …

Changing Mathematical Discourse: A Case Study Of A Secondary Mathematics Teacher, Mary Lynn Breyfogle

Dissertations

No abstract provided.

Modified Adaptive Algorithms, Yingkang Hu, Kirill A. Kopotun, Xiang Ming Yu

College of Natural and Applied Sciences

It is well known that the adaptive algorithm is simple and easy to program but the results are not fully competitive with other nonlinear methods such as free knot spline approximation. We modify the algorithm to take full advantages of nonlinear approximation. The new algorithms have the same approximation order as other nonlinear methods, which is proved by characterizing their approximation spaces. One of our algorithms is implemented on the computer, with numerical results illustrated by figures and tables.

Powwows And Identity On The Piedmont And Coastal Plains Of North Carolina, Chris J. Goertzen

Faculty Publications

No abstract provided.

Roundtable Panel Ii: Digital Video, Andrew Appel, Jeffrey Cunard, Martin Garbus, Edward Hernstadt

Fordham Intellectual Property, Media and Entertainment Law Journal

No abstract provided.

Image Compression By Wavelet Transform., Panrong Xiao

Electronic Theses and Dissertations

Digital images are widely used in computer applications. Uncompressed digital images require considerable storage capacity and transmission bandwidth. Efficient image compression solutions are becoming more critical with the recent growth of data intensive, multimedia-based web applications.

This thesis studies image compression with wavelet transforms. As a necessary background, the basic concepts of graphical image storage and currently used compression algorithms are discussed. The mathematical properties of several types of wavelets, including Haar, Daubechies, and biorthogonal spline wavelets are covered and the Enbedded Zerotree Wavelet (EZW) coding algorithm is introduced. The last part of the thesis analyzes the compression results to …

Hazardous Materials Transportation Flow Survey: An Evaluation Of Hazardous Materials Transported In Washington County., Daniel John O'Brien

Electronic Theses and Dissertations

This study examines the transportation of hazardous materials through Washington County, Tennessee. This study incorporates federal, state, and local data in assessing current transportation trends. Data gathering activities included local chemical inventories, hazardous materials transportation flow surveys, hazardous materials rail transportation trends, and hazardous materials incident data.

All data were compiled and then analyzed to identify hazardous materials transportation trends in Washington County, Tennessee. This information is pertinent to emergency planners for the preparation of hazardous materials transportation incidents. The data gathered further revealed the need for this type of study to identify changing trends in the transportation of hazardous …

A Meta-Analysis And Risk Assessment Of Heavy Metal Uptake In Common Garden Vegetables., Trent David Lecoultre

Electronic Theses and Dissertations

Peer reviewed literature was searched to identify research pertaining to the uptake of heavy metals (As, Cd, Pb and Zn) by vegetables (cabbage, carrot, lettuce, and radish). The objectives of this research were to 1) determine the relationship between heavy metal concentrations in the soil and heavy metal concentrations in vegetables, and 2) determine the level of risk associated with exposure to heavy metals through ingestion of contaminated vegetables. Highly variable estimates and biologically implausible regression equations resulted from this meta-analysis. Exposure to arsenic through the ingestion of lettuce grown on contaminated soil significantly increases cancer risk, especially in children. …

Spatial And Temporal Analysis Of Radial Growth In An Appalachian Watershed, Desta Beyene Fekedulegn

Graduate Theses, Dissertations, and Problem Reports (ETD)

This dendrochronological study used dated and measured tree-ring data to examine relationships between radial growth and climate for four hard wood species, yellow-poplar, northern red oak, chestnut oak and red maple, growing on contrasting topographic aspects of a watershed in north-central West Virginia.;The study showed that all species except northern red oak showed significant differences in growth between the mesic and xeric aspects. Where significant differences were found all except chestnut oak exhibited higher growth rates at the mesic aspect.;Yellow-poplar showed a sharp decline in growth from late 1950's to late 1960's, which was evidently caused by several years of …

Effects Of Baffles On Damping Lateral Fluid Sloshing Oscillations In Tanker Trucks, Rohit Kumar Tanugula

Graduate Theses, Dissertations, and Problem Reports (ETD)

Partially filled heavy-duty tanker trucks maneuvering constant radius turns or lane change maneuvers have lower rollover threshold than other vehicles because of the high center of gravity and dynamic sloshing of the liquid payload. Payloads are often toxic and hence, rollover accidents can be catastrophic. Therefore, attempts to increase the threshold velocity and predicting its value under various on-road maneuvers are of paramount importance.;This research was aimed at studying the effects of baffles on reducing the lateral sloshing and thereby, improving the stability of heavy-duty trucks. Various configurations (horizontal, vertical, horizontal and vertical, and diagonal) of baffles were considered for …

A Study Of The Effectiveness Of A Commercially Available Feedback Training Program In Increasing The Classroom Attending Skills Of Students With Attention Deficit Disorder, Janice M. Digiovanni

Masters Theses

The incidence of attention deficit disorder among elementary aged children has increased dramatically along with reliance on psychostimulant medication. Many parents and professionals seek alternative or supplemental treatments. Neurofeedback training is an alternative intervention that has been researched over the past twenty years with many positive results. The advent of commercially available systems makes neurofeedback training a more realistic and cost-effective option. Such systems must be shown to be effective and practical within a school setting.

This multiple baseline single system experimental study of three male subjects with ADD/HD confirmed that the Play Attention feedback training program by Unique Logic, …

Prediction Of The Crystal Structures Of Perovskites Using The Software Program Spuds, Michael W. Lufaso, Patrick M. Woodward

Chemistry Faculty Research and Scholarship

The software program SPuDS has been developed to predict the crystal structures of perovskites, including those distorted by tilting of the octahedra. The user inputs the composition and SPuDS calculates the optimal structure in ten different Glazer tilt systems. This is performed by distorting the structure to minimize the global instability index, while maintaining rigid octahedra. The location of the A-site cation is chosen so as to maximize the symmetry of its coordination environment. In its current form SPuDS can handle up to four different A-site cations in the same structure, but only one octahedral ion. Structures predicted …

Influence Of Early Lithification On Late Diagenesis Of Microbialities: Insights From Δ 18O Composition Of Upper Cambrian Carbonate Deposits From The Southern Appalachians, B. Glumac

Geosciences: Faculty Publications

This paper documents a difference in isotopic compositions between Upper Cambrian microbial and non-microbial micritic deposits and proposes implications for diagenesis of calcimicrobial deposits. The δ 18O values (-10.98 to -8.71; average -9.88‰ VPDB) of calcimicrite comprising shallow subtidal microbialites from the southern Appalachians are more negative than: (1) the calcimicrite from associated subtidal non-microbial deposits (-8.98 to -7.16; average -7.82), suggesting a different diagenetic history; and (2) estimates of Late Cambrian marine calcite values (-5 to -3 ‰), indicating postdepositional modifications. Early diagenetic calcification of microbial deposits promoted the formation of growth cavities and borings rimmed with marine fibrous …

Bounded Control Of Multiple-Delay Systems With Applications To Atm Networks, Chaouki T. Abdallah, Sophie Tarbouriech, Marco Ariola

Electrical & Computer Engineering Faculty Publications

Congestion control in the available bit rate (ABR) class of asynchronous transfer mode (ATM) networks poses interesting challenges due to the presence of multiple-delays, magnitude and rate constraints on the inputs and additive disturbances. We consider a fixed-structure controller for an ATM/ABR network, and solve a robust tracking control problem in which the target is a threshold on the queue level.

Groundwater Study Of The Mukinbudin Townsite, F Lewis

Resource management technical reports

A groundwater study was carried out in the townsite of Mukinbudin, Western Australia. The town does not currently have a salinity problem, but the future risk is not known. It aimed to accelerate the implementation of effective salinity management options. The study consisted of a drilling investigation, installation of a piezometer network, groundwater flow modelling and a flood risk analysis.

Groundwater Study Of The Koorda Townsite, Louise Hopgood

Resource management technical reports

A groundwater study was carried out in the townsite of Koorda. It aimed to accelerate the implementation of effective salinity risk management. The study consisted of a drilling investigation and expansion of a piezometer network, a pumping test, groundwater flow modelling and a flood risk analysis.

Groundwater Study Of The Mullewa Townsite, Russell John Speed

Resource management technical reports

A groundwater study was carried out in the townsite of Mullewa, Western Australia. It aimed to accelerate the implementation of effective salinity management options. The study consisted of a drilling investigation, installation of a piezometer network, groundwater flow modelling and a flood risk analysis.

Real-Time Distributed Scheduling In Non-Guaranteed Networks Within A Quality Of Service Framework, Hisham Nabil El-Zahhar

Archived Theses and Dissertations

No abstract provided.

On Detecting Service Violations And Bandwidth Theft In Qos Network Domains, Ahsan Habib, Sonia Fahmy, Srinivas R. Avasarala, Venkatesh Prabhakar, Bharat Bhargava

Department of Computer Science Technical Reports

No abstract provided.

Petrological And Geochemical Analyses And Economic Potential Of Some Milestones And Siliceous Rocks In Northern United Arab Emirates., Mohammed Ahmed A. Ibrahim

Theses

Combined microscopic, heavy mineral, X-ray diffraction and chemical analyses have been carried out on the Jurassic limestone, the upper cretaceous Hawasina cherts and the coastal and inland sand dunes in several localities in the Ras Al Khaimah Emirate. The obtained results revealed that a number of represents cherts subfacies; namely: ferruginous radiolarian ribbon chert, carbonaceous radiolarian ribbon chert, colloform ribbon chert, calcareous chert and siliceous mud stone. These rocks consist of (in order of decreasing abundance): quartz, calcite, dolomite and hematite. The carbonate rocks are made up of lime mudstone, wackestone; pack stone and, rarely, crystalline limestone. Various types of …

Fast Implementation Of Depth Contours Using Topological Sweep, Kim Miller, Suneeta Ramaswami, Peter Rousseeuw, Toni Sellarès, Diane Souvaine, Ileana Streinu, Anja Struyf

Computer Science: Faculty Publications

The concept of location depth was introduced in statistics as a way to extend the univariate notion of ranking to a bivariate configuration of data points. It has been used successfully for robust estimation, hypothesis testing, and graphical display. These reguire the computation of depth regions, which form a collection of nested polygons. The center of the deepest region is called the Tukey median. The only available implemented algorithms for the depth contours and the Tukey median are slow, which limits their usefulness. In this paper we describe an optimal algorithm which computes all depth contours in &Ogr;(n 2) time …

Challenges For The New West: Economic Impacts Of Wilderness In Nevada's Rural Counties, Lesley Regina Argo

UNLV Theses, Dissertations, Professional Papers, and Capstones

Public lands designated as part of the National Wilderness Preservation System are removed from multiple-use management for protection of their natural condition. Opponents argue that "locking up" the natural resources on these lands through designation will undermine the rural economies in the west that are dependent upon extractive industries such as mining and logging. Proponents argue that the "Old West" reliance on extractive industries is declining and, in the "New West", wilderness promotes economic development in rural communities by preserving the amenity values that draw population and employment to the region. Characteristics of Nevada's economy, population and land challenge the …

A Framework For Multilingual Information Processing, Steven Edward Atkin

Theses and Dissertations

Recent and (continuing) rapid increases in computing power now enable more of humankind's written communication to be represented as digital data. The most recent and obvious changes in multilingual information processing have been the introduction of larger character sets encompassing more writing systems. Yet the very richness of larger collections of characters has made the interpretation and processing of text more difficult. The many competing motivations (satisfying the needs of linguists, computer scientists, and typographers) for standardizing character sets threaten the purpose of information processing: accurate and facile manipulation of data. Existing character sets are constructed without a consistent strategy …

The Slippery Slope Of Secrecy: Why Patent Law Preempts Reverse-Engineering Clauses In Shrink-Wrap Licenses, John E. Mauk

William & Mary Law Review

No abstract provided.

A Comparison Of Intellectual Test Performance Across Native American And European American Children, Austin P. Keith

Theses and Dissertations

Differential scoring across Native American and European .American groups on the Wechsler Intelligence Scales for Children - Third Edition (WISC-IIi) was examined while controlling for Full Scale IQ and age. Comparisons were made across the groups on Verbal IQ and Performance IQ, individual subtests, individual subtest items and two composite index scores. Results indicated no significant scorino differences between the two groups on Performance IQ or, on the Perceptual Organization Index, Significant scoring differences were also not evident on the Coding, Picture Arrangement, Arithmetic, Block Design, Vocabulary-, Object Assembly and Comprehension subtests. Significant scoring differences were found across the groups …

Effects Of Land Use On Biotic Integrity In Ridge And Valley Streams In The Chattanooga Metropolitan Area, Tennessee-Georgia, Jeannie Long

Masters Theses and Doctoral Dissertations

Twenty-one sites across seven streams in the Chattanooga metropolitan area, Tennessee-Georgia, were studied from April-August, 1999, as part of the Urban Streams Project. All sites are in the Ridge and Valley ecoregion and are part of the Nickajack Reservoir watershed in the Tennessee River system. Study sites were characterized in terms of water quality, habitat, and fish assemblages. Relationships among these features and land use, at both the riparian and watershed scales, were examined. A total of 40 species representing nine families of fishes were collected by electrofishing. Biotic integrity at all sites was degraded to some extent, with 16 …