Digital Commons Network^™

Applicability Of Ozone In Small Drinking Water Systems, Craig D. Adams, Justin Sutherland

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

The use of ozone in water treatment plants is expanding rapidly in the United States. Ozone offers excellent disinfection properties (including chlorine-resistant pathogens) and does not form trihalomethanes. Additionally, ozone can be used to achieve or control many other water quality parameters such as color, taste and odor, and inorganic and organic contaminant concentrations. Control of ozone's disinfection byproducts such as bromate (formed in high bromide waters) is required. This presentation will review the synergistic effects of ozone applicable to use in small water treatment plants.

Accumulation Of Heavy Metals By Vegetables Grown In Mine Wastes, George P. Cobb, Kristin Sands, Melissa Waters, Bobby G. Wixson, Elaine Dorward-King

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Lead, cadmium, arsenic, and zinc were quantified in mine wastes and in soils mixed with mine wastes. Metal concentrations were found to be heterogeneous in the wastes. Iceberg lettuce, Cherry Belle radishes, Roma bush beans, and Better Boy tomatoes were cultivated in mine wastes and in waste-amended soils. Lettuce and radishes had 100% survival in the 100% mine waste treatments compared to 0% and 25% survival for tomatoes and beans, respectively. Metal concentrations were determined in plant tissues to determine uptake and distribution of metals in the edible plant parts. Individual soil samples were collected beneath each plant to assess …

Ovipositional Behavior Of The 12-Spotted Lady Beetle, Coleomegilla Maculata: Choices Among Plant Species And Potential Factors Influencing Those Choices, Marisa Lynn Griffin

University of Kentucky Master's Theses

Coleomegilla maculata is a beneficial coccinellid commonly found in sweet cornfields in Kentucky. Previous work on C. maculata has shown an ovipositional preferencefor the weed Acalypha ostryaefolia, compared to three selected weed species and corn. Also, predation of C. maculata egg clusters on A. ostryaefolia was less compared toclusters on corn and the presence of A. ostryaefolia led to higher densities of C. maculata larvae on corn.

I determined C. maculata ovipositional preference among weed species in fieldtests using nine common weeds. I also examined ovipositional preference using just A.ostryaefolia and Abutilon theophrasti. I assessed the roles of …

An Assessment Of On-Line Package Customization For Sheet Size Products Packaged In Paperboard Envelopes, Kevin Kennedy

Theses

This study evaluates the on-line printing of paperboard envelopes as a means of supporting the need to provide customized packaging. Market forces and new business models are contributing to the need for customized packaging and rapid response to orders. Large retailers are demanding unique packaging presentations and global marketing requires localized packaging for different regions of the world. A business environment ofjust-intime delivery and minimal inventory levels demand flexibility to react to unpredictable product mix and volumes. These conditions require customized packaging within short cycle times. The traditional carton printing process using offset lithography does not respond quickly enough to …

Reconstructing Air, Mathieu Poster

Theses

Not provided.

Evaluation Of Packaging Materials Under Vacuum For Potential Use As Internal Cushioning For Semiconductor Industry Vacuum Machinery, Andrew Baisch

Theses

This study explores a concept for applying basic packaging materials to an environment of high vacuum. This study identified three basic packaging materials and exposed them to a high vacuum environment to identify visual effects caused by the vacuum. In semiconductor and data storage industries, the machinery needed to ultimately create a computer chip often contains vacuum chambers. A common practice of the industry is to ship this machinery while under a state of high vacuum. There are parts inside these vacuum chambers that need protection from the effects of shock and vibration. By placing a sample of packaging material …

Nonlinear Ultrasound Image Modeling: Development Of A Complete End-To-End Model For Qualitative And Quantitative Analysis Of Medical Ultrasound, Kevin Ayer

Theses

Finite amplitude sound propagation undergoes nonlinear distortion due to continuous path interaction with the propagation medium. This distortion tends to defocus the beam causing significant lateral and contrast resolution degradation. Fundamental understanding of this interaction requires development of computational models that accurately predict the nonlinear interaction - development of media-borne harmonics - as well as produce an ultrasound image - introduction of transducer effects, interface transitions, and innovative image processing to extract harmonics. Most computational models of ultrasound propagation assume axial symmetry for computational expediency. Two notable exceptions are the K-Z-K and NLP models. A new endto- end model, NUPROP, …

Characterization Of The Earth's Surface And Atmosphere For Multispectral And Hyperspectral Thermal Imagery, Erich Hernandez-Baquero

Theses

The goal of this research was to develop a new approach to solve the inverse problem of thermal remote sensing of the Earth. This problem falls under a large class of inverse problems that are ill-conditioned because there are many more unknowns than observations. The approach is based on a multivariate analysis technique known as Canonical Correlation Analysis (CCA). By collecting two ensembles of observations, it is possible to find the latent dimensionality where the data are maximally correlated. This produces a reduced and orthogonal space where the problem is not ill-conditioned. In this research, CCA was used to extract …

Monaural Cue Sound Localizer, John G. Harris, Chiang Jung Pu, Jose C. Principe

Electrical and Computer Engineering Faculty Research & Creative Works

We describe the first single microphone sound localization system and its inspiration from theories of human monaural sound localization. Reflections and diffractions caused by the external ear (pinna) allow humans to estimate sound source elevations using only one ear. Our single microphone localization model relies on a specially shaped reflecting structure that serves the role of the pinna. Specially designed analog VLSI circuitry uses echo-time processing to localize the sound. A CMOS integrated circuit has been designed, fabricated, and successfully demonstrated on actual sounds.

Mechanical Supported Adaptable Wing, Cory Pike

Theses

There are several advantages to the incorporation of an adaptable wing on an aircraft. Among these are increased fuel efficiency, greater maneuverability, and an improved ability to negotiate adverse conditions. This thesis explores the concept of a mechanically supported adaptable wing, where the supports are in the form of virtual spars running lengthwise along a wing of uniform cross-section. With no cross-sectional support to the wing, the skin spanning the area between the virtual spars experiences a certain amount of deflection due to the various aerodynamic forces acting on the wing. This thesis develops a process for optimizing (minimizing) the …

Vibration Field-To-Lab: Impact Of Time Measurement Intervals On Intensity, Frank Magnifico Jr, Jay Gerondale

Theses

The objective of this study was to determine what impact various time measurement intervals would have on intensity levels in the trucking environment. The study was limited to timer triggered data collection associated with semi trailer vibration. The study then examined the relationship between established wake-up time intervals and the resultant intensities and PSD plots for the same field trip. In order to accomplish this, it was necessary to use multiple recorders. Each recorder was to be set with a specific time trigger threshold for recording data. Two vibration environments were analyzed using Saver vibration recording equipment. One environment was …

New Buffer Layers, Large Band Gap Ternary Compounds: Cualte², K. Benchouk, E. Benseddik, C. O. El Moctar, J. C. Bernède, S. Marsillac, J. Pouzet, A Khellil

Electrical & Computer Engineering Faculty Publications

After deposition, by evaporation under vacuum, of Al/Cu/Te, multilayer structures, annealing at 673 K or more for half an hour, under argon flow, allows CuAlTe2 films crystallized in the chalcopyrite structure to be obtained. The optical and electrical properties are interpreted by introducing the influence of impurity foreign phases present in the films. The optical properties are sensitive to the small Al2O3 domains randomly distributed into the CuAlTe2 polycrystalline matrix. The optical band gap is slightly increased (2.35 eV) by the presence of alumina. The conductivity measurements show that a short circuit effect can be induced by a binary Cu2-xTe …

Comparison Of Text-Dependent Speaker Identification Methods For Short Distance Telephone Lines Using Artificial Neural Networks, Ganesh K. Venayagamoorthy, N. Sundepersadh

Electrical and Computer Engineering Faculty Research & Creative Works

The transition to democracy in South Africa has brought with it certain challenges. The main challenge is to get rid of crime and corruption. The paper presents a technique to combat white-collar crime in telephone transactions by identifying and verifying speakers using artificial neural networks (ANNs). Results are presented to show that speaker identification is feasible and this is illustrated with two different types of ANN architectures and with two different types of characteristic features as inputs to ANNs.

Textured Mos 2 Thin Films Obtained On Tungsten: Electrical Properties Of The W/Mos 2 Contact, E. Gourmelon, J. C. Bernède, J. Pouzet, S. Marsillac

Electrical & Computer Engineering Faculty Publications

Textured films of molybdenum disulfide have been obtained by solid state reaction between the constituents in thin films form when a (200) oriented tungsten sheet is used as substrate. The crystallites have their c axis perpendicular to the plane of the substrate. The annealing conditions are T=1073K and t=30 min. The films are stoichoimetric and p type. Such highly textured films are achieved without foreign atom addition (Ni, Co...). It appears, as shown by x-ray photoelectron spectroscopy, that a thin WS₂ layer is present at the interface W/MoS₂. The crystallization process is discussed by a …

Hyperspectral Imaging For Bottom Type Classification And Water Depth Determination, Nikole L. Wilson

Theses

Many recreational, military, and commercial activities take place in shallow coastal waters; therefore, interest is high in characterizing these areas. A variety of methods have been employed to determine water depths and classify the bottom using remote sensing. This research proposes to apply Philpot's principal components algorithm for bathymetric mapping to a MISI hyperspectral image, whereas previously this approach has been used on synthetic data. A description of the principal components algorithm is presented along with an outline of how it was applied to airborne hyperspectral images. The algorithm takes advantage of the ability to implement a deep-water correction, and …

Using Δe Distribution As A Predictor Of Digital Proofing Performance, Raul Eduardo Gonzalez Dorbecker

Theses

The performance of color matching in ICC-based Color Management Systems (CMS) is being improved, and its workflow established. As part of the digital workflow, digital proofing plays an important roll in the control of color from capture to the printed page, but its method of evaluation is not clearly understood.

To evaluate the degree of color matching by digital proofing in an ICC-based CMS between a reference image and a sample image, the [formula] calculated by averaging the individual color differences is being used. Doing a qualitative evaluation, ICC-based CMS should be able to stand behind the statement that the …

Narrative Whiskey Flasks, Christopher Mackey Kelly

Theses

This thesis will explore and celebrate how men have lived, their different roles throughout history, and their future position in the world. I have chosen the whiskey flask as a metaphor for men. Each flask will be a symbolic representation of a selected individual taken from literature.

Residency Status And Age Of Entry As Moderators Of The Effectiveness Of A Special Act School District, Sabrina Beckerink

Theses

This study investigated the effectiveness of the program at Randolph Academy Union Free School District, a special act school district designed to educate students with emotional, behavioral, and learning difficulties. The outcome of treatment is documented by measurement of change in academic achievement. Pre-post comparisons of standardized achievement test scores were collected from the psychoeducational files of 49 students. Results indicate significant gains in academic achievement. A two-way analysis of covariance identified age of entry into the program as a moderator of academic achievement: younger entrants improved their relative ranking more than older entrants.

Wavelet Analysis Of Acoustic Signals, John E. Smertneck

Theses

Wavelets and wavelet transforms have become popular new tools in the fields of signal processing and mathematical modeling because of the various advantages they have over traditional techniques. The Fourier Transform decomposes a signal into a frequency spectrum at the loss of time domain information. Wavelet transforms involve decomposing a signal into various levels to study frequency patterns over time. High frequency characteristics in the lower levels and low frequency characteristics in the higher levels allow the analyst to make predictions regarding the nature of the signal.

This case involved the study of tuning fork frequency characteristics using the Discrete …

Virtual Rubik's Cube, Wen-Bin Wu

Theses

Not Included

Universityie: Information Extraction From University Web Pages, Angel Janevski

University of Kentucky Master's Theses

The amount of information available on the web is growing constantly. As a result, theproblem of retrieving any desired information is getting more difficult by the day. Toalleviate this problem, several techniques are currently being used, both for locatingpages of interest and for extracting meaningful information from the retrieved pages.Information extraction (IE) is one such technology that is used for summarizingunrestricted natural language text into a structured set of facts. IE is already being appliedwithin several domains such as news transcripts, insurance information, and weatherreports. Various approaches to IE have been taken and a number of significant resultshave been reported.In …

Luminesence Study Of Polymer-Copolymer Blends Using A Carbazole/Iodine Probe/Quencher System, Tammy Davis

Theses

The miscibility behavior of binary blends of polystyrene (PS), poly(methyl methacrylate) (PMMA) and their copolymers was re-evaluated using the luminescence of carbazole (Cz) and its quenching by 4-iodoaniline (I). The chromophore and quencher probes were polymerized into the polymers and copolymers to be blended. These experiments were conducted at room temperature, on thin films, and were compared to the published results of Braun, et. al.13Homopolymer/copolymer blend compositions were selected from regions of miscible, partially miscible, and immiscible phase behavior. The quencher molecule, 4-iodoaniline, was derivatized to form the vinylfunctionalized monomer, N-(4-iodophenyl)maleimide (NIPMI). The synthesis of NIPMI was carried out in …

Determination Of Thermal Maturity And Organic Matter Type By Principal Components Analysis Of The Distributions Of Polycyclic Aromatic Compounds, Michael A. Kruge

Department of Earth and Environmental Studies Faculty Scholarship and Creative Works

The thermal maturity and organofacies sensitivity of polycyclic aromatic compound (PAC) distributions was explored by examination of the aromatic fractions of solvent extracts from a diverse set of 53 shales, coals and kerogen macerals which have undergone either natural or artificial maturation and which represent all three principal sedimentary organic matter (OM) types. Systematic changes with maturation were observed in the following groups of isomers: tri- and tetramethylnaphthalenes, methyl- and dimethylphenanthrenes, methyl- and dimethyldibenzothiophenes, methylpyrenes, and methylchrysenes. The maturity differences were quantified by mathematical ratios of the relative concentrations of the more thermally stable isomers to the less stable, on …

Oculoplastic Surgery, Curtis W. Perone

Theses

Not Included

Pod, Margaret Slinker

Theses

This thesis explores the themes which motivate the creation of abstract sculpture, searching for common forms and universal shapes throughout the pieces examined in the thesis. The examples presented were created by other artists and by the author, which include ceramic sculpture and earthenware oxides and glazes.

Detection And Modeling Of Radiation Induced Effects In Tissues By Dielectric Spectroscopy, Dorin A. Todor

Physics Theses & Dissertations

The work presented here is applied physics research in the field of radiation treatment. We address the development of a new and innovative method, in vivo and possibly non-invasive, for tumor and healthy tissues control during and after the radiation treatment. The radiation treatment is delivered in an almost standardized manner for particular classes of tumors. The large variance in the individual radio sensitivity of healthy tissues and tumors often leads to local recurrence of neoplastic growth and/or distant metastatic disease which often remains untreated. The method is based on the measurement and analysis of electrical impedance data in …

Chemical Oxidation Of Mtbe Under O2-Rich And O2-Limited Environments Coupled With Biological Degradation Of Oxidation Byproducts, J. Sutherland, B. Panka, Craig D. Adams, Joel Gerard Burken

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

The H2O2/UV Advanced Oxidation Process (AOP) Was Investigated to Determine Byproduct Formation under Different Experimental Conditions (PH, Alkalinity, and H2O2/UV Dose). a Key Factor in the Efficiency of the AOP Was the Dissolved Oxygen Concentration. Gas Chromatography/mass Spectrometry (GC/MS) Analysis Was Used to Identify Byproducts Resulting from Oxidation under Oxygen-Rich and Oxygen-Limited Conditions. Resultant Oxidation Byproducts Were Analyzed for their Susceptibility to Biological Degradation. Biodegradation Rate Constants Were Determined and Modeled for the Primary Byproducts of the Advanced Oxidation Process. Inhibition Resulting from the Presence of Multiple Byproducts in a Biological System Was Investigated as Well. Effects of Process Parameters …

The Effects Of Light And Nitrate Levels On The Relationship Between Nitrate Reductase Activity And (No3-)-N-15 Uptake: Field Observations In The East China Sea, Chin-Chang Hung, George T. F. Wong, Kom-Kee Liu, Fuh-Kwo Shiah, Gwo-Ching Gong

OES Faculty Publications

Nitrate reductase activity (NRA) and ¹⁵NO₃- uptake (NU) were determined in the East China Sea and the adjoining Kuroshio in May 1996, at six stations covering a range of hydrographic conditions: the nutrient-rich and fresher plume of Changjiang Diluted Water along the Chinese coast, the nutrient-rich upwelling Kuroshio Subsurface Water at the shelf edge northeast of Taiwan, the oligotrophic Kuroshio Surface Water and the mixing zones among these water masses on the shelf. The values of NRA in the surface mixed layer ranged between 16 and 0.1 nM-N h^-1, whereas those of NU ranged between …

Intraspecific Variation In The Selenium Requirement Of Different Geographic Strains Of The Toxic Dinoflagellate Gymnodinium Catenatum, Martina A. Doblin, Susan I. Blackburn, Gustaaf M. Hallegraeff

OES Faculty Publications

The requirement for selenium (IV) was assessed in five strains of the toxic dinoflagellate Gymnodinium catenatum Graham, representing three populations from Tasmania (Australia), as well as one each from Japan and Spain. Strains were grown in nutrient-enriched sea water medium with 10^-9 M selenium added as selenite (H₂SeO₃), or with no added selenium, and monitored for growth and cell yield. Strains exhibited different selenium (Se) requirements, as evidenced by (i) a decrease in exponential growth rate (10-20%) and cell yield (up to 80%) (Japanese strain); (ii) a decrease in cell yield only (Tasmania Derwent Estuary …

Free Speech On The Internet: Regulating Web Authorship By Students, Rhoda J. Yen

Computer Law Review and Technology Journal

As Internet use increases, more websites authored by students will populate the World Wide Web (WWW). Indeed, about one-third of all personal websites now belong to students, who are mostly minors.' Students' increasing use of the web raises new questions about free speech. This article addresses one of them: May schools censor student-created websites? If so, under what circumstances may they delete pages, edit pages, or discipline students for website speech?

In answering this question, this article looks for guidance to the history of free speech in the classroom. And examining the problem from a free-speech perspective is appropriate. If …