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Articles 16021 - 16050 of 17271
Full-Text Articles in Entire DC Network
Generalized Block Diagram Of The Western Pennyroyal Karst, James C. Currens
Generalized Block Diagram Of The Western Pennyroyal Karst, James C. Currens
Map and Chart--KGS
Karst occurs where limestone or other soluble bedrock is near the earth's surface, and fractures in the rock become enlarged when the rock dissolves. Sinkholes and sinking streams are two surface features that indicate karst development. In karst areas most rainfall sinks underground, resulting in fewer streams flowing on the surface than in non-karst settings. Instead of flowing on the surface, the water flows underground through caves, sometimes reemerging at karst windows, then sinks again to eventually discharge at a base-level spring along a major stream or at the top of an impermeable strata. The development of karst features is …
Generalized Block Diagram Of The Eastern Pennyroyal Karst, James C. Currens
Generalized Block Diagram Of The Eastern Pennyroyal Karst, James C. Currens
Map and Chart--KGS
Karst occurs where limestone or other soluble bedrock is near the earth's surface, and fractures in the rock become enlarged when the rock dissolves. Sinkholes and sinking streams are two surface features that indicate karst development. In karst areas most rainfall sinks underground, resulting in fewer streams flowing on the surface than in non-caves, sometimes reemerging at karst windows, then sinks again to eventually discharge at a base-level spring along a major stream or at the top of an impermeable strata. The development of karst features is influenced by the type of soluble rock and how it has been broken …
Coal Availability In Western Kentucky, Gerald A. Weisenfluh, William M. Andrews Jr., Robert E. Andrews, John K. Hiett
Coal Availability In Western Kentucky, Gerald A. Weisenfluh, William M. Andrews Jr., Robert E. Andrews, John K. Hiett
Report of Investigations--KGS
Fourteen quadrangles in five separate areas of the Western Kentucky Coal Field were studied to determine what factors affect the availability of coal for mining. Each study area consisted of at least two adjacent 7.5-minute quadrangles in order to account for the geologic variability across broad distances in western Kentucky, and determine how this variability affects availability. Areas both north and south of the Rough Creek Fault System were selected to measure the effect of different geologic, structural, and overburden settings on coal availability. The study emphasized the coals occurring stratigraphically between the Springfield and the Baker.
About 90 percent …
Protect Kentucky's Karst Aquifers From Nonpoint-Source Pollution, James C. Currens
Protect Kentucky's Karst Aquifers From Nonpoint-Source Pollution, James C. Currens
Map and Chart--KGS
No abstract provided.
Karst Occurrence In Kentucky, Randall L. Paylor, James C. Currens
Karst Occurrence In Kentucky, Randall L. Paylor, James C. Currens
Map and Chart--KGS
This map was compiled from a digital version of the 1:500,000-scale geologic map of Kentucky (Noger, M.C., comp., 1988, Geologic map of Kentucky: U.S. Geological Survey). The areas of potential karst development were delineated using stratigraphic units mapped on the geological map. The classification of the potential for karst development was based on the field experience of the authors and other data. A number of isolate carbonated unites that would not have otherwise been differentiated on the geologic map were newly digitized for this map.
Generalized Block Diagram Of The Pine Mountain Karst, James C. Currens
Generalized Block Diagram Of The Pine Mountain Karst, James C. Currens
Map and Chart--KGS
Karst occurs where limestone or other soluble bedrock is near the earth's surface, and fractures in the rock become enlarged when the rock dissolves. Sinkholes and sinking streams are two surface features that indicate karst development. In karst areas most rainfall sinks underground, resulting in fewer streams flowing on the surface than in non-karst settings. Instead of flowing on the surface, the water flows underground through caves to eventually discharge at a base-level spring along a major stream or at the top of an impermeable strata. The development of karst features is influenced by the type of soluble rock and …
Exploring A Small Thrust Fault And Related Features On U.S. Highway 62/68, Near Maysville, Mason County, Kentucky, Paul Edwin Potter, John Grover, Gregory A. Schumacher
Exploring A Small Thrust Fault And Related Features On U.S. Highway 62/68, Near Maysville, Mason County, Kentucky, Paul Edwin Potter, John Grover, Gregory A. Schumacher
Map and Chart--KGS
One of the most unusual highway cuts in all of Kentucky is located approximately 395 ft (120 m) south of the high bridge that crosses Lawrence Creek on U.S. Highway 62/68, near Maysville, Mason County (see Figs. 1-2). The Carter coordinate location of the outcrop is 400 FSL x 900 FEL, 24-AA-69, which corresponds to 38°40'3" N latitude, 83°48'10" W longitude. The roadcut is approximately 1,315 ft (400 m) long, and rises in benches to a height of almost 110 ft (33 m). About 30 to 36 ft (9 to 11 m) of the Grant Lake Limestone is exposed at …
Geologic Map Of Kentucky, M. C. Noger
Illustrated Physiographic Diagram Of Kentucky, Kentucky Geological Survey
Illustrated Physiographic Diagram Of Kentucky, Kentucky Geological Survey
Map and Chart--KGS
No abstract provided.
Mineral And Fuel Resources Map Of Kentucky, Warren H. Anderson, Garland R. Dever Jr.
Mineral And Fuel Resources Map Of Kentucky, Warren H. Anderson, Garland R. Dever Jr.
Map and Chart--KGS
The production of minerals and fuels in Kentucky is a multibillion dollar industry. Historically, coal, oil, natural gas, limestone, sand and gravel, clay, fluorite, barite, lead, iron, phosphate, zinc, and brines have been produced in the state. These resources have greatly influenced the development of Kentucky by providing raw materials for the early settlers who settled the state and for current industrial and economic development. Electrical power for homes, businesses, and factories; materials for constructing houses, buildings, automobiles, and roads; and products we consume in everyday life come from the earth's mineral and fuel resources.
The ability to locate and …
Generalized Block Diagram Of The Inner Bluegrass Karst, James C. Currens
Generalized Block Diagram Of The Inner Bluegrass Karst, James C. Currens
Map and Chart--KGS
Karst occurs where limestone or other soluble bedrock is near the earth's surface, and fractures in the rock become enlarged when the rock dissolves. Sinkholes and sinking streams are two surface features that indicate karst development. In karst areas most rainfall sinks underground, resulting in fewer streams flowing on the surface than in non-karst settings. Instead of flowing on the surface, the water flows underground through caves, sometimes reemerging at karst windows, then sinks again to eventually discharge at a base-level spring along a major stream or at the top of an impermeable strata. The development of karst features is …
Physiographic Diagram Of Kentucky, Kentucky Geological Survey
Physiographic Diagram Of Kentucky, Kentucky Geological Survey
Map and Chart--KGS
No abstract provided.
Trademark Law, Functional Design Features, And The Trouble With Traffix, Harold R. Weinberg
Trademark Law, Functional Design Features, And The Trouble With Traffix, Harold R. Weinberg
Law Faculty Scholarly Articles
This article concerns trademark law's functionality doctrine and the Supreme Court's troublesome opinion concerning it in TrafFix Devices, Inc. v. Marketing Displays, Inc. The doctrine provides that if a producer's useful or aesthetic design feature is "functional," then competitors can lawfully copy it even if the feature otherwise would be protected against copying by trademark principles. In order to introduce the functionality doctrine and the trouble with TrafFix, it is helpful to describe the nature of design features, the simultaneous roles they may play as source-identifying trade symbols and as useful or aesthetic product elements, and trademark law's place …
A Farm-Level Analysis Of Specialty Crop Production In Kentucky, Daniel C. Green
A Farm-Level Analysis Of Specialty Crop Production In Kentucky, Daniel C. Green
University of Kentucky Master's Theses
Special purpose crops are those with traits designed to meet the specificdemands of an end user. A mean-variance (E-V) mathematical programming modeland sensitivity analysis are used to quantify and discuss the potential net returns andrisk associated with the adoption of special purpose crops at the farm level.Furthermore, a spreadsheet-based decision aid is developed to assist farmers in thedecision of whether or not to produce high-oil corn on their operation.Results from this study indicate that the profitability of high-oil corn is verymarginal, dependent upon the ability of the crop to yield as well as conventional corn,and gain significant premiums. The potential …
New Input And Output Risk Management Strategies For Livestock Producers, Brian K. Coffey
New Input And Output Risk Management Strategies For Livestock Producers, Brian K. Coffey
University of Kentucky Master's Theses
Backgounding beef cattle is an inherently risky venture. Producers faceproduction risks as well as marketing risks. If a backgrounding operation is to be viable,these risks should be addressed and effectively managed. While some effective riskmanagement tools are currently available to livestock producers, some other potentiallyuseful risk management tools, for various reasons, have been previously unavailable.Two such tools which could help livestock producers achieve the overall goal ofmanaging net income risk are a program for managing feed ingredient nutrient and pricevariability in the selection of minimum cost feed rations and government subsidizedlivestock price insurance.Due to lack of data and limited computational …
Porosity, Percolation Thresholds, And Water Retention Behavior Of Random Fractal Porous Media, Michael C. Sukop
Porosity, Percolation Thresholds, And Water Retention Behavior Of Random Fractal Porous Media, Michael C. Sukop
University of Kentucky Doctoral Dissertations
Fractals are a relatively recent development in mathematics that show promise as a foundation for models of complex systems like natural porous media. One important issue that has not been thoroughly explored is the affect of different algorithms commonly used to generate random fractal porous media on their properties and processes within them. The heterogeneous method can lead to large, uncontrolled variations in porosity. It is proposed that use of the homogeneous algorithm might lead to more reproducible applications. Computer codes that will make it easier for researchers to experiment with fractal models are provided. In Chapter 2, the application …
Implementation Costs Of Kentucky's Erosion Control Best Management Practices For Skid Trails, Bennett Scott Shouse
Implementation Costs Of Kentucky's Erosion Control Best Management Practices For Skid Trails, Bennett Scott Shouse
University of Kentucky Master's Theses
This paper describes a study designed to determine average labor and machine times required to implement erosion control and revegetation best management practices (BMPs) for skid trails in Kentucky. Labor and machine activities were recorded for 14,400 feet of skid trail on 10 nonindustrial private logging sites. Water bar construction and reshaping activities such as filling ruts and berm removal were filmed continuously with a video camera and then analyzed using time-motion study techniques. Labor activities for revegetation such as seeding and application of fertilizer were also timed. The average total machine time for retirement activities per 1000 feet was …
Pervaporation Of Solvent Mixtures Using Polymeric And Zeolitic Membranes: Separation Studies And Modeling, Dhaval S. Shah
Pervaporation Of Solvent Mixtures Using Polymeric And Zeolitic Membranes: Separation Studies And Modeling, Dhaval S. Shah
University of Kentucky Doctoral Dissertations
The separation characteristics of binary alcohol-water mixtures were studied overa wide range of feed concentration and temperature using polymeric and zeoliticpervaporation membranes. For the hydrophilic PVA membrane, the total flux (at 55 0C)for the ethanol-water system decreased from 0.45 to 0.05 kg/m2/hr as the feed ethanolconcentration was increased from 30 to 95 wt. %. The separation factor (water/ethanol)was found to increase by about 100 times for the same range of concentration. TheUNIQUAC theory was used to predict the activity of binary alcohol-water mixtures in thePVA membrane. The UNIQUAC theory successfully takes into account the nonidealitiespresent in the alcohol/water-PVA membrane system. …
Diversity In Hunter-Gatherer Landscapes In The North American Midcontinent, Victor Dominic Thompson
Diversity In Hunter-Gatherer Landscapes In The North American Midcontinent, Victor Dominic Thompson
University of Kentucky Master's Theses
The thesis examines changes in hunter-gatherer land-use along lower Cypress Creek, atributary of the Green River located in west-central Kentucky. Presented, are the results of the firstthree years of site survey and museum work conducted by the Cypress Creek Archaeological Project.Analysis of site location and hafted bifaces suggests that, throughout the Holocene, increasingemphasis was placed on certain locations and areas of the landscape. Comparison of the CypressCreek study area with other areas of Archaic research indicate that land-use was highly variable inboth space and time across the North American midcontinent.
Piv Measurements Of Channel Flow With Multiple Rib Arrangements, Harald Roclawski
Piv Measurements Of Channel Flow With Multiple Rib Arrangements, Harald Roclawski
University of Kentucky Master's Theses
A model of a gas turbine blade cooling channel equipped with turbulators and a backward facing step geometry was examined. Up to four turbulators oriented cross-stream and inclined 45° to the flow direction were mounted in the channel. The blockage ratio b/H of the turbulators and the height h/H of the backward facing step was 0:125 and 0:14 respectively. The number of turbulators as well as their size was varied. In a preliminary investigation, hot-wire and pressure measurements were taken for three different Reynolds numbers (5,000, 12,000, 18,000)in the center plane of the test section. Subsequently, particle image …
Continuum Pumping Of [Fe Ii] In The Orion Nebula, E. M. Verner, D. A. Verner, J. A. Baldwin, Gary J. Ferland, P. G. Martin
Continuum Pumping Of [Fe Ii] In The Orion Nebula, E. M. Verner, D. A. Verner, J. A. Baldwin, Gary J. Ferland, P. G. Martin
Physics and Astronomy Faculty Publications
This paper presents detailed comparisons between numerical simulations of Fe II emission spectra and recent high-resolution and signal-to-noise spectra of the Orion Nebula. We have identified 40 [Fe II] lines in the spectrum, allowing extensive comparisons between theory and observations. The identifications are based on predictions of a realistic model of the Fe II atom, which includes the lowest 371 levels (all levels up to 11.6 eV). We investigate the dependence of the spectrum on electron density and on pumping by the stellar continuum. Orion is important because it provides a relatively simple environment in which to test complex simulations. …
Simulation Of Daily And Monthly Stream Discharge From Small Watersheds Using The Swat Model, Crystal A. Spruill, Stephen R. Workman, Joseph L. Taraba
Simulation Of Daily And Monthly Stream Discharge From Small Watersheds Using The Swat Model, Crystal A. Spruill, Stephen R. Workman, Joseph L. Taraba
Biosystems and Agricultural Engineering Faculty Publications
The Soil and Water Assessment Tool (SWAT) was evaluated and parameter sensitivities were determined while modeling daily streamflows in a small central Kentucky watershed over a two-year period. Streamflow data from 1996 were used to calibrate the model and streamflow data from 1995 were used for evaluation. The model adequately predicted the trends in daily streamflow during this period although Nash-Sutcliffe R2 values were –0.04 and 0.19 for 1995 and 1996, respectively. The model poorly predicted the timing of some peak flow values and recession rates during the last half of 1995. Excluding daily peak flow values from August …
Metallic Nanoscale Fibers From Stable Iodine-Doped Carbon Nanotubes, Peter C. Eklund, Leonid Grigorian, Keith A. Williams, Gamini U. Sumanasekera, Shaoli Fang
Metallic Nanoscale Fibers From Stable Iodine-Doped Carbon Nanotubes, Peter C. Eklund, Leonid Grigorian, Keith A. Williams, Gamini U. Sumanasekera, Shaoli Fang
Physics and Astronomy Faculty Patents
A method of doping involves soaking single-walled carbon nanotubes in molten iodine. Excess physisorbed iodine may then be removed by annealing.
Observational Constraints On The Internal Velocity Field Of Quasar Emission-Line Clouds, Mark Bottorff, Gary J. Ferland, Jack Baldwin, Kirk Korista
Observational Constraints On The Internal Velocity Field Of Quasar Emission-Line Clouds, Mark Bottorff, Gary J. Ferland, Jack Baldwin, Kirk Korista
Physics and Astronomy Faculty Publications
This paper addresses the question, what does the spectrum of a typical quasar reveal about the velocity structure within its broad emission line region clouds? Turbulent (i.e., nonthermal) broadening of spectral lines can be due to macroturbulence or microturbulence. Microturbulence affects line formation and the emitted spectrum and may be required to account for the observed smoothness of the line profiles. The velocity field is crucial since it addresses the fundamental nature of the individual clouds and the global structure of the active galactic nuclei (AGNs) environment. For example, stellar winds or magnetically confined blobs might be highly microturbulent, requiring …
The Toxicology Of Aluminum In The Brain: A Review, Robert A. Yokel
The Toxicology Of Aluminum In The Brain: A Review, Robert A. Yokel
Pharmaceutical Sciences Faculty Publications
Aluminum is environmentally ubiquitous, providing human exposure. Usual human exposure is primarily dietary. The potential for significant Al absorption from the nasal cavity and direct distribution into the brain should be further investigated. Decreased renal function increases human risk of Al-induced accumulation and toxicity. Brain Al entry from blood may involve transferrin-receptor mediated endocytosis and a more rapid process transporting small molecular weight Al species. There appears to be Al efflux from the brain, probably as Al citrate. There is prolonged retention of a fraction of Al that enters the brain, suggesting the potential for accumulation with repeated exposure. Al …
Reconsidering The Reliance Interest, Christopher W. Frost
Reconsidering The Reliance Interest, Christopher W. Frost
Law Faculty Scholarly Articles
This essay discusses the place of Fuller and Perdue's The Reliance Interest in Contract Damages in the contracts classroom. After first describing my use of The Reliance Interest, I will set out what I consider to be the pedagogical benefits of beginning the course with remedies and the attractiveness of Fuller and Perdue's analytical model in conveying an understanding of the remedial structure. Next, I will discuss the views of critics Craswell, Kelly and Barnes. Finally, I will revisit the place of Fuller and Perdue's work in the contracts course in light of these criticisms.
Pride Water Quality Assessment Report: I. Problems And Programs, Kentucky Water Resources Research Institute. University Of Kentucky
Pride Water Quality Assessment Report: I. Problems And Programs, Kentucky Water Resources Research Institute. University Of Kentucky
KWRRI Research Reports
This report provides an overview of the water quality problems and associated state and federal programs in the 40 counties that make up the PRIDE region. The 2000 Kentucky 305(b) stream assessment has identified over 1000 miles of impaired stream within the region. The major cause of pollution in the region is related to problems with pathogens. Much of these problems are related to straight pipes and failing septic and wastewater systems. It has been estimated that there are over 35,000 straight pipes and failing septic systems in the PRIDE region. A second major environmental impact in the region is …
Pride Water Quality Assessment Report: Iii. Existing And Proposed Monitoring Network, Kentucky Water Resources Research Institute, University Of Kentucky
Pride Water Quality Assessment Report: Iii. Existing And Proposed Monitoring Network, Kentucky Water Resources Research Institute, University Of Kentucky
KWRRI Research Reports
This document provides a recommendation for proposed sampling sites in support of the general water quality assessment of the 40 county PRIDE region. A general assessment of the associated environmental problems and programs in the region can be found in the companion report: PRIDE Water Quality Assessment Report I: Problems and Programs while the report PRIDE Water Quality Assessment Report II: Chemical, Biological and Habitat Assessments provides a 10 year baseline assessment of environmental conditions in the region as measured by indicators of pH, fecal coliforms, habitat assessment, and macro-invertebrate assessment.
Pride Water Quality Assessment Report: Ii. Chemical, Biological And Habitat Assessments, Kentucky Water Resources Research Institute, University Of Kentucky
Pride Water Quality Assessment Report: Ii. Chemical, Biological And Habitat Assessments, Kentucky Water Resources Research Institute, University Of Kentucky
KWRRI Research Reports
The efficient utilization of federal funds in improving the water quality and aquatic habitat of the region requires a mechanism for assessing and evaluating the impacts of the proposed and ongoing projects as well as some mechanism for prioritizing the allocation of additional funds. In order to evaluate the effectiveness of these projects it is important to provide a formal monitoring and assessment program based on sound scientific principles. This report provides an initial 10 year baseline assessment of the existing water quality conditions in the 40 county PRIDE·region for the purpose of evaluating the impacts of the PRIDE programs …
Clathrate Structure For Electronic And Electro-Optic Applications, Leonid Grigorian, Peter C. Eklund, Shaoli Fang
Clathrate Structure For Electronic And Electro-Optic Applications, Leonid Grigorian, Peter C. Eklund, Shaoli Fang
Physics and Astronomy Faculty Patents
A method including the steps of (a) depositing a metal layer on a selected portion of a silicon substrate under a first set of predetermined conditions to form an metal silicide layer and an intermediate n-type silicon layer; and (b) exposing the metal silicide layer and the n-type silicon layer to a second set of predetermined conditions to form a silicon clathrate film on the selected portion of the silicon substrate, where the intermediate n-type silicon layer acts to bond the silicon clathrate to the silicon substrate to form a silicon clathrate structure.