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Full-Text Articles in Entire DC Network
High Order Shock Capturing Schemes For Hyperbolic Conservation Laws And The Application In Open Channel Flows, Chunfang Chen
High Order Shock Capturing Schemes For Hyperbolic Conservation Laws And The Application In Open Channel Flows, Chunfang Chen
University of Kentucky Doctoral Dissertations
Many applications in engineering practice can be described by thehyperbolic partial differential equations (PDEs). Numerical modeling of this typeof equations often involves large gradients or shocks, which makes it achallenging task for conventional numerical methods to accurately simulate suchsystems. Thus developing accurate and efficient shock capturing numericalschemes becomes important for the study of hyperbolic equations.In this dissertation, a detailed study of the numerical methods for linearand nonlinear unsteady hyperbolic equations was carried out. A new finitedifference shock capturing scheme of finite volume style was developed. Thisscheme is based on the high order Pad?? type compact central finite differencemethod with the …
Optimal Water Quality Management Strategies For Urban Watersheds Using Macro-Level Simulation Models Linked With Evolutionary Algorithms, Mohammad Tufail
Optimal Water Quality Management Strategies For Urban Watersheds Using Macro-Level Simulation Models Linked With Evolutionary Algorithms, Mohammad Tufail
University of Kentucky Doctoral Dissertations
Urban watershed management poses a very challenging problem due to the varioussources of pollution and there is a need to develop optimal management models that canfacilitate the process of identifying optimal water quality management strategies. Ascreening level, comprehensive, and integrated computational methodology is developedfor the management of point and non-point sources of pollution in urban watersheds. Themethodology is based on linking macro-level water quality simulation models withefficient nonlinear constrained optimization methods for urban watershed management.The use of macro-level simulation models in lieu of the traditional and complexdeductive simulation models is investigated in the optimal management framework forurban watersheds. Two different …
Co2-Selective Membrane For Fuel Cell Applications, Louei Abdel Raouf El-Azzami
Co2-Selective Membrane For Fuel Cell Applications, Louei Abdel Raouf El-Azzami
University of Kentucky Doctoral Dissertations
We have developed CO2-selective membranes to purified hydrogen and nitrogenfor fuel cell processes. Hydrogen purification impacts other industries such as ammoniaproduction and flue gas purification at reduced costs.Dense chitosan membranes were used for the first time to separate CO2 from amixture of 10% CO2, 10% H2, and 80% N2 at temperatures of 20 – 150oC and feedpressures of 1.5 atm – 5 atm. At 1.5 atm and 20 – 150oC, dry chitosan membranesachieved CO2 permeabilities, CO2/N2 and CO2/H2 separation factors of 0.383 – 24.3barrers, 10.7 – 3.40, and 4.54 – 1.50, respectively. The dry chitosan acted as an ordinarysolution-diffusion membrane: …
Influence Of Moisture Regime And Tree Species On Nitrogen Cycling And Decomposition Dynamics In Deciduous Forests Of Mammoth Cave National Park, Kentucky, Usa, Eric Fabio
University of Kentucky Master's Theses
The study of biogeochemical cycles and their role in ecosystem function has helped to highlight the impacts of human activities on natural processes. However, our understanding of the effects of nitrogen (N) deposition on forested ecosystems remains limited due to the variable controls on N cycling. Soils, microclimate, and vegetation can influence rates and processes of N cycling, singly or in concert at multiple scales. Understanding how these factors influence N cycling across the landscape will help to elucidate the impacts of N deposition. The objectives of this study were to characterize variation in soils, microclimate and vegetation characteristics, and …
Habitat Selection Of The Cerulean Warbler In Eastern Kentucky, Patricia J. Hartman
Habitat Selection Of The Cerulean Warbler In Eastern Kentucky, Patricia J. Hartman
University of Kentucky Master's Theses
Successful forest management requires an understanding of the habitat requirements of individual species at multiple spatial scales. The cerulean warbler (Dendroica cerulea) is a neotropical migratory songbird that has recently gained widespread attention as a species of conservation and management concern. It breeds in mature, deciduous forests of eastern North America and has experienced precipitous range-wide declines over the last 40 years. Although Kentucky likely supports one of the largest breeding populations of the species, no information exists on cerulean warbler habitat selection within the state. The overall purpose of this study was to identify important habitat features associated with …
The Integration Of The Theory Of Planned Behavior, Altruism, And Self-Construal: Implications For Designing Recycling Campaigns In Individualistic And Collectivistic Societies, Rungrat Chaisamrej
The Integration Of The Theory Of Planned Behavior, Altruism, And Self-Construal: Implications For Designing Recycling Campaigns In Individualistic And Collectivistic Societies, Rungrat Chaisamrej
University of Kentucky Doctoral Dissertations
This study was an effort to uncover four major facts: (a) the predictive power ofthe proposed integrated model, which posits the influence of attitudes (ATT), subjectivenorms (SN), perceived behavior control (PBC), altruism, self-construal, and paperrecyclingknowledge on behavioral intentions; (b) the moderating effects ofindividualism-collectivism (I-C) on the attitudes-intentions relationship and thesubjective norms-intentions relationship; (c) the comparison of the predictive power ofthe TPB model and the proposed integrated model; and (d) the relationship between twointentions measures: behavioral intentions and implementation intentions.This cross-sectional research consisted of two phases: the TPB elicitation researchand the main study. Participants were undergraduate students recruited from two majorpublic …
Fault-Tolerant Distributed Channel Allocation Algorithms For Cellular Networks, Jianchang Yang
Fault-Tolerant Distributed Channel Allocation Algorithms For Cellular Networks, Jianchang Yang
University of Kentucky Doctoral Dissertations
In cellular networks, channels should be allocated efficiently to support communication betweenmobile hosts. In addition, in cellular networks, base stations may fail. Therefore, designing a faulttolerantchannel allocation algorithm is important. That is, the algorithm should tolerate failuresof base stations. Many existing algorithms are neither fault-tolerant nor efficient in allocatingchannels.We propose channel allocation algorithms which are both fault-tolerant and efficient. In theproposed algorithms, to borrow a channel, a base station (or a cell) does not need to get channelusage information from all its interference neighbors. This makes the algorithms fault-tolerant,i.e., the algorithms can tolerate base station failures, and perform well in …
Petrofabric And Geochemical Analysis Of The Great Smoky -- Snowbird Group Contact, Western Blue Ridge, North Carolina And Tennessee, Kristopher M. Clemons
Petrofabric And Geochemical Analysis Of The Great Smoky -- Snowbird Group Contact, Western Blue Ridge, North Carolina And Tennessee, Kristopher M. Clemons
University of Kentucky Master's Theses
Detailed structural and petrographic analysis of the Greenbrier Fault (GBF) reveal different fold and fabric styles and generations preserved in the Great Smoky Group (GSG) hanging wall and Snowbird Group (SG) footwall. Four planar fabrics (S0, S1, S2, and S3) are completely overprinted within meters of the contact by shear zone-related fabrics. Bedding (S0) is defined by planar laminations in the SG siltstones. S1 is weak, not associated with folding of S0, and defined locally by sub-parallel alignment of biotite. S2 (slaty cleavage) is deflected into a disjunctive planar (in GSG) or continuous planar (in SG) S3 foliation characterized by …
Optimal Phase Measuring Profilometry Techniques For Static And Dynamic 3d Data Acquisition, Veeraganesh Yalla
Optimal Phase Measuring Profilometry Techniques For Static And Dynamic 3d Data Acquisition, Veeraganesh Yalla
University of Kentucky Doctoral Dissertations
Phase measuring Profilometry (PMP) is an important technique used in 3D data acquisition. Many variations of the PMP technique exist in the research world. The technique involves projecting phase shifted versions of sinusoidal patterns with known frequency. The 3D information is obtained from the amount of phase deviation that the target object introduces in the captured patterns. Using patterns based on single frequency result in projecting a large number of patterns necessary to achieve minimal reconstruction errors. By using more than one frequency, that is multi-frequency, the error is reduced with the same number of total patterns projected as in …
Citizens On Patrol: Community Policing And The Territorialization Of Public Space In Seattle, Washington, Marcia Rae England
Citizens On Patrol: Community Policing And The Territorialization Of Public Space In Seattle, Washington, Marcia Rae England
University of Kentucky Doctoral Dissertations
This dissertation shows how organizations, including local government and police, and residents within Seattle, Washingtons East Precinct define and police the contours of community, neighborhoods and public space. Under the rubric of public safety, these players create territorial geographies that seek to include only those who fit the narrowly conceived idea of a neighbor. Territoriality is exercised against the social Other in an attempt to build a cohesive community while at the same time excluding those who are seen as different or as non-conformant to acceptable behaviors in the neighborhood. This research provides a framework through which to examine how …
Effects Of Forest And Grass Vegetation On Fluviokarst Hillslope Hydrology, Bowman's Bend, Kentucky, Linda Leann Martin
Effects Of Forest And Grass Vegetation On Fluviokarst Hillslope Hydrology, Bowman's Bend, Kentucky, Linda Leann Martin
University of Kentucky Doctoral Dissertations
Subsurface solutional pathways make limestone terrains sensitive to changes in soil properties that regulate flows to the epikarst. This study examines biogeomorphic factors responsible for changed water movements and erosion in fluviokarst slopes deforested 200 years ago along the Kentucky River, Kentucky. In this project, infiltration and water content data from forest and fescue grass soil profiles were analyzed within a detailed overview of system factors regulating hillslope hydrology. Results show that grass has growth and rooting characteristics that tend to create a larger volume of lateral water movement in upper soil layers than occurs under forests. This sets up …
Karl Priebe, Young Woman At The Seashore, 1940, Stephen L. Franzoi
Karl Priebe, Young Woman At The Seashore, 1940, Stephen L. Franzoi
Psychology Faculty Research and Publications
No abstract provided.
The Smart Bookshelf, Danny Sylvester Crasto
The Smart Bookshelf, Danny Sylvester Crasto
University of Kentucky Master's Theses
The smart bookshelf serves as a test-bed to study environments that are intelligently augmented by projector-camera devices. The system utilizes a camera pair and a projector coupled with an RFID reader to monitor and maintain the state of a real world library shelf. Using a simple calibration scheme, the homography induced by the world plane in which book spines approximately lie is estimated. As books are added to the shelf, a foreground detection algorithm which takes into account the projected information yields new pixels in each view that are then verified using a planar parallax constraint across both cameras to …
Data Acquisition System For Muon Lifetime Experiment, Sivaram Kumar Battu
Data Acquisition System For Muon Lifetime Experiment, Sivaram Kumar Battu
University of Kentucky Master's Theses
I designed, developed and deployed a data acquisition (DAQ) system to meet the needsof the "??Lan" nuclear physics experiment. The main goal of the experiment is to measurethe positive muon lifetime to a precision of 1 part per million. This represents more thanan order of magnitude increase in precision beyond the current world average. The DAQdesign is motivated by very high data rate this experiment will produce. This experimentis being performed with the proton accelerator at Paul Scherrer Institut in Villigen,Switzerland. I have setup a mock experimental setup at the University of Kentucky. Thedesign and development of the DAQ software …
Performance Evaluation And Optimization Of The Unstructured Cfd Code Uncle, Saurabh Gupta
Performance Evaluation And Optimization Of The Unstructured Cfd Code Uncle, Saurabh Gupta
University of Kentucky Master's Theses
Numerous advancements made in the field of computational sciences have made CFD a viable solution to the modern day fluid dynamics problems. Progress in computer performance allows us to solve a complex flow field in practical CPU time. Commodity clusters are also gaining popularity as computational research platform for various CFD communities. This research focuses on evaluating and enhancing the performance of an in-house, unstructured, 3D CFD code on modern commodity clusters. The fundamental idea is to tune the codes to optimize the cache behavior of the node on commodity clusters to achieve enhanced code performance. Accordingly, this work presents …
Detection Of Malingered Mental Retardation, Lili Odom Graue
Detection Of Malingered Mental Retardation, Lili Odom Graue
University of Kentucky Master's Theses
The 2002 Supreme Court decision (Atkins vs. Virginia, 536 U. S. 304), prohibiting the execution of mentally retarded persons, may potentially increase malingering of mental retardation (MR). There is limited research addressing the detection of feigned MR. The present study compared results from tests of intelligence, adaptive functioning, legal/courtroom knowledge, and psychiatric and neurocognitive feigning to determine how effectively these instruments discriminate between MR participants and community volunteers asked to either approach the test honestly (CVH group) or feign, or malinger, MR (CVM group). CVMs suppressed their IQ scores sufficiently to appear MR. CVMs overestimated deficits on individuals with genuine …
Does Optimism Explain How Religiousness Affects Alcohol Use Among College Students?, Benjamin Lee Collier
Does Optimism Explain How Religiousness Affects Alcohol Use Among College Students?, Benjamin Lee Collier
University of Kentucky Master's Theses
Alcohol use, because of its many negative consequences, is the number one health problem facing college students. Because of this, researchers have looked for factors associated with reduced drinking. Religiousness is one such factor. Religiousness is a complex, multidimensional construct, and while it tends to be negatively associated with alcohol use, research progress has been slow due to the tendency of researchers to poorly operationalize this construct and to design studies that fail to go beyond the bivariate relationship of religiousness and alcohol use. In order to address these shortcomings, this study will assess two dimensions of religiousness, religious commitment/motivation …
Search For Gravitational Waves From Binary Black Hole Inspirals In Ligo Data, B. P. Abbott, R. Abbott, W. G. Anderson, Mario C. Diaz, Wm. R. Johnston, Soumya Mohanty, Soma Mukherjee, Cristina V. Torres
Search For Gravitational Waves From Binary Black Hole Inspirals In Ligo Data, B. P. Abbott, R. Abbott, W. G. Anderson, Mario C. Diaz, Wm. R. Johnston, Soumya Mohanty, Soma Mukherjee, Cristina V. Torres
Physics & Astronomy Faculty Publications
We report on a search for gravitational waves from binary black hole inspirals in the data from the second science run of the LIGO interferometers. The search focused on binary systems with component masses between 3 and 20M⊙. Optimally oriented binaries with distances up to 1 Mpc could be detected with efficiency of at least 90%. We found no events that could be identified as gravitational waves in the 385.6 hours of data that we searched.
The Lazarus Project. Ii. Spacelike Extraction With The Quasi-Kinnersley Tetrad, Manuela Campanelli, Bernard Kelly, Carlos O. Lousto
The Lazarus Project. Ii. Spacelike Extraction With The Quasi-Kinnersley Tetrad, Manuela Campanelli, Bernard Kelly, Carlos O. Lousto
Physics & Astronomy Faculty Publications
The Lazarus project was designed to make the most of limited 3D binary black-hole simulations, through the identification of perturbations at late times, and subsequent evolution of the Weyl scalar Ψ4 via the Teukolsky formulation. Here we report on new developments, employing the concept of the “quasi-Kinnersley” (transverse) frame, valid in the full nonlinear regime, to analyze late-time numerical space-times that should differ only slightly from Kerr. This allows us to extract the essential information about the background Kerr solution, and through this, to identify the radiation present. We explicitly test this procedure with full-numerical evolutions of Bowen-York data for …
Optimizing Consumer Credit Markets And Bankruptcy Policy, Ronald J. Mann
Optimizing Consumer Credit Markets And Bankruptcy Policy, Ronald J. Mann
Faculty Scholarship
This Article explores the relationship between consumer credit markets and bankruptcy policy. In general, I argue that the causative relationships running between borrowing and bankruptcy compel a new strategy for policing the conduct of lenders and borrowers in modern consumer credit markets. The strategy must be sensitive to the role of the credit card in lending markets and must recognize that both issuers and cardholders are well placed to respond to the increased levels of spending and indebtedness. In the latter parts of the Article, I recommend mandatory minimum payment requirements, a tax on distressed credit card debt, and the …
Impact Of Glass Cockpit Experience On Manual Flight Skills, John P. Young, Richard O. Fanjoy, Michael W. Suckow
Impact Of Glass Cockpit Experience On Manual Flight Skills, John P. Young, Richard O. Fanjoy, Michael W. Suckow
Journal of Aviation/Aerospace Education & Research
Modern aircraft employ a wide variety of advanced flight instrument systems that have been designed to reduce pilot workload and promote safe, efficient flight operations. Research to date on advanced flight instrumentation has primarily focused on mode confusion or pilot misinterpretation of system information. A few studies have also identified pilot concern with a reduction in manual flight skills as a result of regular operation in automated modes. This paper addresses that concern in an attempt to identify factors useful to flight curriculum development. Study participants included 110 experienced airline, corporate, and military pilots who were surveyed before and after …
Annual Reports Of The Town Of Seabrook, New Hampshire For The Year Ending December 31st, 2005 As Compiled By The Town Officers., Seabrook Town Representatives
Annual Reports Of The Town Of Seabrook, New Hampshire For The Year Ending December 31st, 2005 As Compiled By The Town Officers., Seabrook Town Representatives
Seabrook, NH Annual Reports
This is an annual report containing vital statistics for a town/city in the state of New Hampshire.
Models Of Aviation Technical Communication With Augmented Reality, Anthony Majoros, Dennis Vincenzi, Sathya Gangadharan, Paul Jackson
Models Of Aviation Technical Communication With Augmented Reality, Anthony Majoros, Dennis Vincenzi, Sathya Gangadharan, Paul Jackson
Journal of Aviation/Aerospace Education & Research
A fundamental characteristic of augmented reality (AR) is the overlay of computer graphics (e.g., installation instructions) on views of world objects (e.g., a section of an aircraft wing) and registration of those graphics to features in the world scene. In AR, the mechanisms of information retrieval rely on detection of features of real-world objects, and communication is by way of virtual content in a real world scene; causing information to become a function of the composite scene, where real and virtual elements are interdependent. Various models of technical media communication are made possible by these characteristics and are discussed in …
High-Dynamic-Range Photography: Image Display And Perception, Jiangtao Kuang
High-Dynamic-Range Photography: Image Display And Perception, Jiangtao Kuang
Theses
Current desktop and hard copy display media are capable of only a limited dynamic range in luminance. Hence, high dynamic range (HDR) images require tone-mapping operators for rendering on these media to adequately reproduce their perceptual qualities. Furthermore, the development of these operators requires a methodology for their evaluation in terms of perceptual attributes. To this end, a series of psychophysical experiments was conducted to evaluate a wide-variety of previously published, HDR tone-mapping operators. The evaluations were conducted in terms of rendering accuracy and image preference, and from them, a general methodology for evaluating tonemapping operators was proposed. A next …
"Dr. Kyle Choe's Facial Plastic Surgery Patient Education Website", Eunju Park
"Dr. Kyle Choe's Facial Plastic Surgery Patient Education Website", Eunju Park
Theses
Not Included
Effect Of A Biomes Genetics Unit On Student Achievement In High School Biology, Melissa C. James
Effect Of A Biomes Genetics Unit On Student Achievement In High School Biology, Melissa C. James
Dissertations and Theses @ UNI
Research has found the learning cycle to be an effective science instructional tool for implementing hands-on activities and leading interactive discussion. In 2000 a curriculum entitled Biology Instructional Opportunities for Motivating Every Student (BIOMES), was written by teachers from Iowa and Wisconsin and edited by Dr. Jody Stone and Dr. Lyn Countryman of the University of Northern Iowa. BIO MES was designed using a three stage learning cycle format to allow students to be true science investigators and create a more student-centered environment to stimulate the development of reasoning skills. The purpose of this study was to test the BIO …
Structure Of 1-(Thiophen-2-Ylmethyl)-2-(Thiophen-2-Yl)-1h-Benzimidazole, Necmi̇ Dege, Memet Şekerci̇, Süleyman Servi̇, Muharrem Di̇nçer, Ünzi̇le Demi̇rbaş
Structure Of 1-(Thiophen-2-Ylmethyl)-2-(Thiophen-2-Yl)-1h-Benzimidazole, Necmi̇ Dege, Memet Şekerci̇, Süleyman Servi̇, Muharrem Di̇nçer, Ünzi̇le Demi̇rbaş
Turkish Journal of Chemistry
The title compound, C_{16}H_{12}N_2S_2, crystallizes in the monoclinic space group P2_1/n with Z = 4, a = 8.950 (5) Å, b = 9.141 (5) Å, c = 17.429 (5) Å and \beta = 93.638 (5)°. The benzimidazole ring is essentially planar. The crystal structure is stabilized by intermolecular C---H ... N and C---H ... \pi contacts.
Dichloride[1-(2,4,6-Trimethylbenzyl)-3-(Biphenyl-2-Ylmethyl)-Imidazolidin- 2-Ylidine (\Eta^6-Hexamethylbenzene)]Ruthenium, Hakan Arslan, Donald Van Derveer, İsmai̇l Özdemi̇r, Sedat Yaşar, Beki̇r Çeti̇nkaya
Dichloride[1-(2,4,6-Trimethylbenzyl)-3-(Biphenyl-2-Ylmethyl)-Imidazolidin- 2-Ylidine (\Eta^6-Hexamethylbenzene)]Ruthenium, Hakan Arslan, Donald Van Derveer, İsmai̇l Özdemi̇r, Sedat Yaşar, Beki̇r Çeti̇nkaya
Turkish Journal of Chemistry
The single crystal X-ray structure of the imidazolidin ruthenium complex, C_{38}H_{46}N_2Cl_2Ru, was determined. The complex is an orthorhombic space group Pbca with a = 17.3586(32) Å, b = 14.4447(27) Å, c = 27.4325(52) Å, and V = 6878.466(4) Å^3 with Z = 8 for D_{calc} = 1.357 g/cm^3. It exhibits the expected 3-legged piano stool geometry. There is one coordination bond of the ruthenium atom with the electrons of the \eta^6-hexamethylbenzene, 2 symmetrical Ru-Cl bonds, and one Ru-C bond involving the imidazole ring. The coordination around the ruthenium atom is 4-fold, which in this is case is pseudo-tetrahedral.
The Mechanism And Crystal Structure Of 2-Methoxy-2-Methyl-4-Phenyl-3,4,4a, 10b-Tetrahydro-2h,5h-Pyrano[3,2-C]Chromen-5-One. Acetal Of Warfarin Acid, Saira Shahzadi, Saqib Ali, Irum Asif, Rizwana Ashraf, Guo-Xin Jin
The Mechanism And Crystal Structure Of 2-Methoxy-2-Methyl-4-Phenyl-3,4,4a, 10b-Tetrahydro-2h,5h-Pyrano[3,2-C]Chromen-5-One. Acetal Of Warfarin Acid, Saira Shahzadi, Saqib Ali, Irum Asif, Rizwana Ashraf, Guo-Xin Jin
Turkish Journal of Chemistry
Acetal of warfarin acid has been synthesized via a hemi acetal intermediate and structurally characterized by X-ray diffraction. The crystal structure shows that the title compound was formed by the hydrolysis of warfarin acid in methanol at pH 3, with space group P2_1/n and unit cell parameters a = 5.859 (17), b =16.745 (5), c = 16.402 (5) Å, \alpha = 90.00; \beta = 94.853 (4), and \gamma = 90.00°.
Streaming Video Performance And Enhancements In Resource-Constrained Wireless Networks, Justin James Madigan
Streaming Video Performance And Enhancements In Resource-Constrained Wireless Networks, Justin James Madigan
Theses
Streaming video is an increasingly popular application in wireless networks. The concept of a live streaming video yields several enticing possibilities: real-time video conferencing, television broadcasting, pay-per-view movie streaming, and more. These ideas have already been explored via the internet and have met with mixed success, largely due to the shortcomings of the underlying network. Taking streaming video to wireless networks, then, poses several significant challenges. Wireless networks are inherently more susceptible to failures and data corruption due to their unstable communications medium. This volatility suggests serious drawbacks for any implementation of streaming video. Video frame errors, jitter, and even …