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Assessment Of Atrazine In A Rural Water Source: Rough River Lake, Kentucky, Scotty Sharp
Assessment Of Atrazine In A Rural Water Source: Rough River Lake, Kentucky, Scotty Sharp
Masters Theses & Specialist Projects
Atrazine [2-chloro- 4-(ethylamino)-6-(isopropylamino)-l,3,5-triazine], a widely used herbicide in US corn production, impacts quality of drinking water for many rural water supply systems. Four systems at Rough River Lake, Kentucky, have had high levels of atrazine in raw water and in some cases finished water that have exceeded the legal limit of 3 parts per billion (ppb). The Rough River Lake watershed is 1,700-km2, much of which is located in limestone karst. A hypothesis was developed stating that there would be higher concentrations of atrazine in the northeast section of the Rough River Watershed, located in Hardin County, due to the …
Flash Flooding In Eastern Kentucky: An Analysis Of The 3-4 August 2001 Event, Christina Henry
Flash Flooding In Eastern Kentucky: An Analysis Of The 3-4 August 2001 Event, Christina Henry
Masters Theses & Specialist Projects
Limited research exists concerning flash flooding in the United States. However, flash floods can occur anywhere and cause more fatalities than any other weather related natural disaster. Eastern Kentucky experienced an average of 41 flash floods per year (1993-2002), yet little research exists for this region. Therefore, this paper presents an analysis of the particularly devastating flash flood event of 3-4 August 2001, which resulted in $15 million worth of property damage and two deaths. Previous studies indicate that flash floods typically occur under relatively 'benign' conditions, the most common characteristics being a quasi-stationary system and high atmospheric moisture. The …
Identification, Characterization And Analysis Of Wrench Related Faulting In Southwestern Warren County, Kentucky, Joseph Islas
Identification, Characterization And Analysis Of Wrench Related Faulting In Southwestern Warren County, Kentucky, Joseph Islas
Masters Theses & Specialist Projects
Warren County, Kentucky is located south of the southern boundary of the Rough Creek Graben marked by the Pennyrile fault system. The Pennyrile fault system is a regional southwest-northeast trending fault system that extends into Kentucky from the Reelfoot rift zone. The Rough Creek fault system bounds the northern arm of the Rough Creek Graben and trends northwest-southeast also extending from the Reelfoot rift zone. The Rough Creek fault system is related to the Shawneetown fault system in southeastern Illinois and occupies the southern end of the Illinois Basin. The East Continent Rift Basin intersects the Rough Creek Graben near …
Modeling Soil Erosion In The Upper Green River, Ky, Narcisa Pricope
Modeling Soil Erosion In The Upper Green River, Ky, Narcisa Pricope
Masters Theses & Specialist Projects
Off-site soil erosion has tremendous impacts on the present state of most river systems throughout the United States, contributing sediments to channels mainly as nonpoint pollution resulting from land-use and agricultural practices and leading to sedimentation downstream and downwind, a decrease in the transport capacity of streams, increase in the risk of flooding, filling reservoirs, and eutrophication. A primary focus in examining the problems associated with soil erosion arid ultimately in proposing control measures should be on identifying the sources of the sediment. Therefore, a model that would be able to assess soil erosion needs to start by identifying the …
Strategies For Reducing Mosquito-Borne Disease Vulnerability In Equine Populations: A Kentucky Case Study, Sara Dalton
Strategies For Reducing Mosquito-Borne Disease Vulnerability In Equine Populations: A Kentucky Case Study, Sara Dalton
Masters Theses & Specialist Projects
This research examined equine management practices that limit or contribute to the spread of West Nile virus and other mosquito-bome disease. I hypothesize that there is a relationship between equine management practices and outbreaks of mosquito-borne disease in horse populations. Improved and appropriate mosquito habitat management may limit the risk of mosquito-borne disease in humans and horses by helping to lower the mosquito populations. The study goals were to recognize equine management practices and mosquito prevention practices that foster outbreaks of mosquito-borne disease. This study used a questionnaire for county level analysis of equine management practices and the relationship to …
Sustainability With Globalization: An Unsustainable Proposition, Daniel B. Reader
Sustainability With Globalization: An Unsustainable Proposition, Daniel B. Reader
Masters Theses & Specialist Projects
Globalization is recognized as a world-encompassing phenomenon, even as its benefits are debated. Sustainability, the capacity to maintain high standards of living through generations, is at stake. This paper examines the problems of sustainability with globalization from several perspectives. High statistical correlation between indices of globalization and environmental degradation (r2 = 0.977, p < .001) is found using multi-dimensional scaling software. The socially destabilizing, culture flattening effects of globalization are examined, and the terms ‘nationalism’ and ‘terrorism’ are defined. On the basis of its medial position among the indices of both globalization and environmental degradation, Chile is explored in a case study of the interaction. Conclusions regarding Chile’s vulnerabilities are reached, and the country’s environmental, social, and economic ‘weak spots’ are identified. The ethical positions of globalization and sustainability are considered, and the conclusion that there is very little that can be done to alter the nature of the interaction is drawn. It is suggested that globalization minimizes the prospects of success in efforts toward sustainability by maximizing vulnerabilities among sustainability’s components.
Geoexpert - An Expert System Based Framework For Data Quality In Spatial Databases, Aditya Kumar
Geoexpert - An Expert System Based Framework For Data Quality In Spatial Databases, Aditya Kumar
Masters Theses & Specialist Projects
Usage of very large sets of historical spatial data in knowledge discovery process became a common trend, and in order to obtain better results from this knowledge discovery process the data should be of high quality. In this thesis we proposed a framework 'GeoExpert' for data quality assessment and cleansing tool for spatial data that integrates the spatial data visualization and analysis capabilities of the ARCGIS, the reason and inference capability of an expert system. In this thesis we implemented the proposed framework both stand-alone and web versions using ArcGIS Engine and ArcGIS Server, respectively. We used JESS expert system …
Pseudostationary Phase For Solid Phase Extraction, Qing Zhao
Pseudostationary Phase For Solid Phase Extraction, Qing Zhao
Masters Theses & Specialist Projects
A unique pseudostationary phase for Solid Phase Extraction is presented. This pseudostationary phase consists of surfactant, which is initially immobilized onto hydrophilic cation exchange resin. The surfactant chain through hydrophobic interactions extracts hydrophobic analytes in the same manner as conventional bonded alkyl moieties on silica based non-polar sorbents. Although hydrophobic analytes can be efficiently trapped on commercially available non-polar sorbents (i.e. Ci8 silica), organic solvents that are necessary to break strong hydrophobic interactions between the analytes and the sorbent are harmful. They are also incompatible for direct introduction into a reversed phase liquid chromatographic set up. In the presented approach, …
An Algorithm To Generate 4-Regular Planar Hamiltonian Graphs, Mehmet Ascigil
An Algorithm To Generate 4-Regular Planar Hamiltonian Graphs, Mehmet Ascigil
Masters Theses & Specialist Projects
In this paper, the problem of randomly generating 4-regular planar Hamiltonian graphs is discussed and a solution is described. An algorithm which efficiently generates the graphs in linear time and in a near-uniform manner is given. In addition, a formula is provided that determines the total number of such graphs. The generation of graphs starts with forming the Hamiltonian cycle of the final graph. Each vertex is randomly assigned to be connected with zero. one. Or two edges in the area bounded by the Hamiltonian cycle. A positive prefix vector is used to determine all the edges in the area …
Hydrochemistry In An Alpine Karst System, Sequoia And Kings Canyon National Parks, California, Joel Despain
Hydrochemistry In An Alpine Karst System, Sequoia And Kings Canyon National Parks, California, Joel Despain
Masters Theses & Specialist Projects
This study uses high-resolution, long-term conductivity, temperature, discharge, pH, and laboratory data from 2001 through 2003 from an alpine karst spring located at 2,500 m amsl in Sequoia National Park, California to reveal detailed chemical parameters of this karst system. The data show a system with a pronounced spring run-off, extended periods of base flow quiescence, storm responses tied to precipitation as rain or as snowfall, and clear diurnal and seasonal patterns of discharge. pH and spC values show an inverse relationship to discharge and temperature, which are generally in phase. Total inorganic carbon (TIC) and the fraction of mineral-derived …
Hydrolgeologic Groundwater Sensitivity And Vulnerability Mapping In South Central Kentucky, Andrea Croskrey
Hydrolgeologic Groundwater Sensitivity And Vulnerability Mapping In South Central Kentucky, Andrea Croskrey
Masters Theses & Specialist Projects
Groundwater sensitivity (Ray and O'dell 1993 a) refers to the inherent ease with which groundwater can be contaminated based on hydrogeologic characteristics. We have developed digital methods for identifying areas of varying groundwater sensitivity for a ten county area of south-central Kentucky relevant to a scale of 1: 24,000. The study area includes extensive limestone karst sinkhole plains, with groundwater that is generally extremely sensitive to contamination. Digitally Vectorized Geologic Quadrangles (DVGQs) were combined with elevation data to both identify hydrogeologic groundwater sensitivity regions and to identify zones of "high risk runoff where contaminants could be transported in runoff from …
On 4-Regular Planar Hamiltonian Graphs, David High
On 4-Regular Planar Hamiltonian Graphs, David High
Masters Theses & Specialist Projects
In order to research knots with large crossing numbers, one would like to be able to select a random knot from the set of all knots with n crossings with as close to uniform probability as possible. The underlying graph of a knot diagram can be viewed as a 4-regular planar graph. The existence of a Hamiltonian cycle in such a graph is necessary in order to use the graph to compute an upper bound on rope length for a given knot. The algorithm to generate such graphs is discussed and an exact count of the number of graphs is …
Operator Semigroups: Definitions, Properties And Applications, Ngoc Nguyen
Operator Semigroups: Definitions, Properties And Applications, Ngoc Nguyen
Masters Theses & Specialist Projects
A large part of contemporary natural science is concerned with investigating the motion of systems in time with a determined state space. To conduct this investigation, we study the theory of one-parameter semigroups. The theory is developed from the simplest scalar case and finite dimensional case to semigroups of linear operators on Banach spaces which started in the first half of the last century. This thesis is designed to give a basic introduction to semigroup theory and its application. Some proofs and illustrative examples are provided.
Spatial Characteristics Of Paleochannels In Association With The Mississippian/Pennsylvanian Systematic Boundary In Western And South-Central Kentucky, Scott Schoefernacker
Spatial Characteristics Of Paleochannels In Association With The Mississippian/Pennsylvanian Systematic Boundary In Western And South-Central Kentucky, Scott Schoefernacker
Masters Theses & Specialist Projects
The basal Pennsylvanian Caseyville Formation of south-central Kentucky includes an extensive network of paleochannels, which unconformably overlie various Mississippian (Chesterian Series) rocks. Questions have been raised about the extent and orientation of paleochannels and the systemic boundary in the region. The problematical systemic boundary is quite significant in cases where marker beds are lacking or where sandstone facies of Pennsylvanian age are juxtaposed on lithologically similar Mississippian-age strata. Discerning the systemic boundary may also be complicated by facies changes in Chesterian strata. This study employs various data to investigate the Mississippian-Pennsylvanian systemic boundary such as well logs, outcrops, and subsurface-to-outcrop …