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Ua66/9/1 Ogden College Of Science & Engineering Engineering Administration, Wku Archives

WKU Archives Collection Inventories

No abstract provided.

A Bridge Rehabilitation Strategy Based On The Analysis Of A Dataset Of Bridge Inspections In Co. Cork, Liam Dromey

Masters

Ageing highway structures present a challenge throughout the developed world. The introduction of bridge management systems (BMS) allows bridge owners to assess the condition of their bridge stock and formulate bridge rehabilitation strategies under the constraints of limited budgets and resources. This research presents a decision-support system for bridge owners in the selection of the best strategy for bridge rehabilitation on a highway network. The basis of the research is an available dataset of 1,367 bridge inspection records for County Cork that has been prepared to the Eirspan BMS inspection standard and which includes bridge structure condition ratings and rehabilitation …

Introducing Gaseous Transport Fuel To Ireland: A Strategic Infrastructure Framework, Niamh Power, Daniel Goulding, Dan Fitzpatrick, Rodger O'Connor, James D. Browne

Publications

European Union legislation in the form of the Renewable Energy Directive 2009/28/EC and the Deployment of Alternative Fuels Infrastructure Directive 2014/94/EC have placed mandatory requirements on Member States to deliver sustainable forms of alternative transport infrastructure in order to reduce greenhouse gas emissions in the transport sector. However, there is currently little or no refuelling infrastructure to support the development of an alternative transport fuel market for compressed natural gas and its renewable form biomethane in a number of EU Member States. Primarily focussing on a combination of biomethane and compressed natural gas (bio-CNG), this paper analyses the key considerations …

Assessing Impact And Blast Resilience Of Polymer Coated Cementitious Materials, Murtaza Nalwala, Gabriel Nsengiyumva, Yong-Rak Kim

UCARE Research Products

RESEARCH MOTIVATION The bridge piers are highly vulnerable to the impact and blast loads. The position in which they are constructed makes it difficult to install protective devices around them. By the current AASHTO standard, it is possible to under-design bridge piers for commercial vehicle impacts and other events such as blast.

OBJECTIVE To improve impact and blast resilience of bridge piers using polymeric coatings.

CONCLUSION Polymer coating of Portland cement concrete can be achieved with a good bonding. ü The polymeric coating seem to improve impact resilience of Portland cement concrete by increasing absorbed impact energy (i.e., area underneath …

Degradation And Deactivation Of Bacterial Antibiotic Resistance Genes During Exposure To Free Chlorine, Monochloramine, Chlorine Dioxide, Ozone, Ultraviolet Light, And Hydroxyl Radical, Huan He, Peiran Zhou, Kyle Shimabuku, Xuzhi Fang, Shu Li, Yunho Lee, Michael C. Dodd

Civil Engineering Faculty Scholarship

This work investigated degradation (measured by qPCR) and biological deactivation (measured by culture-based natural transformation) of extra- and intracellular antibiotic resistance genes (eARGs and iARGs) by free available chlorine (FAC), NH2Cl, O3, ClO2, and UV light (254 nm), and of eARGs by •OH, using a chromosomal ARG (blt) of multidrug-resistant Bacillus subtilis 1A189. Rate constants for degradation of four 266–1017 bp amplicons adjacent to or encompassing the acfA mutation enabling blt overexpression increased in proportion to #AT+GC bps/amplicon, or in proportion to #5′-GG-3′ or 5′-TT-3′ doublets/amplicon, with respective values ranging from 0.59 to 2.3 (×1011 M–1 s–1) for …

Developing A Calibrated Seepage Meter To Measure Stream-Aquifer Interaction In The Mississippi Delta, Wesley J. Bolton

Electronic Theses and Dissertations

The Mississippi Alluvial Plain (MAP) is a premier region for irrigated agriculture in the United States producing approximately 9 billion dollars in annual revenues. The region receives around 138 cm of precipitation annually; however irrigation is necessary to maximize crop yields as most of the precipitation does not occur during the growing season. There are 8 million irrigated acres within the Mississippi Alluvial Plain. The source of most of the irrigated water is the surficial aquifer in the Mississippi Embayment the Mississippi River Valley Alluvial Aquifer (MRVAA) and due to the reliance on irrigation for maximum crop yields recent potentiometric …

Acoustic Emission Sensing For Crack Monitoring In Prefabricated And Prestressed Reinforced Concrete Bridge Girders, Robert Lee Worley Ii

Graduate College Dissertations and Theses

Prefabricated and pre-stressed reinforced concrete beams and girders are integral components of many highway structures, including those built by rapid construction techniques. Concerns exist regarding the development of cracks during curing, form removal, detensioning, transport, installation, and operation. Non-destructive, Acoustic Emission (AE) sensing techniques have the potential for detecting and locating cracking in prefabricated, pre-stressed concrete girders used as Prefabricated Bridge Elements and Systems (PBES) used in rapid construction practices as part of a Quality Assurance/Quality Control (QA/QC) program. AE sensing records transient elastic waves produced by the release of stored elastic energy resulting in plastic deformations (i.e., crack nucleation …

Coupled Thermal-Hydrological-Mechanical-Chemical Processes In Geothermal And Shale Energy Developments, Arash Kamali-Asl

Graduate College Dissertations and Theses

Coupled Thermal-Hydrological-Mechanical-Chemical (THMC) processes that exist in the development of different geo-resources (e.g. deep geothermal and shale gas) affect the fracture response (i.e. aperture and permeability), which in turn influences the reservoir production. The main goal of this study was to experimentally evaluate the impact of THMC processes on the response of rock specimens relevant for deep geothermal and shale gas formations. The effects of THMC processes were investigated on: (i) success of the hydraulic fracturing/hydro-shearing mechanism during stimulation stage, and (ii) closure of the created network of fractures during production stage.

The elastic, cyclic, creep, and failure characteristics of …

Quantifying The Seismic Vulnerability Of Bridges In Low To Moderate Seismicity Regions, John Edward Lens

Graduate College Dissertations and Theses

The U.S. Congressional Research Service issued a report for Congress in May 2016, entitled” Earthquake Risk and U.S. Highway Infrastructure: Frequently Asked Questions” which highlighted the absence of a national database on the status of seismic vulnerability of bridges or other infrastructure, and thus no estimate of costs to retrofit vulnerable bridges. Low to moderate seismicity regions exist in each of the continental United States, with over 30 states having mostly or entirely low-to-moderate seismicity. Resources at state transportation agencies and municipalities are focused on higher seismicity regions, creating a gap in quantifying the system-wide seismic vulnerability despite an overall …

The Resilient City: A Platform For Informed Decision-Making Process, Paul Niculescu-Mizil Gheorghe, Jarutpong Vasuthanasub, Adrian Gheorghe

Engineering Management & Systems Engineering Faculty Publications

As over half of the world’s inhabitants lives in metropolises, the rapid growth in urbanization has made cities becoming more and more exposed and vulnerable to a broad spectrum of threats and hazards. In order to respond to such difficulties, a concept of resilience is considered a significant component for the long-term planning and sustainable development of the cities. “Resilient City” is a new paradigm that challenges the idealistic principle of stability and resistance to change implicitly in sustainable development and success. However, building a resilient city requires a holistic approach, as well as the appropriate adoption of knowledge and …

Edge-Of-Field Hydrology And Nutrient Fluxes Within Northeastern Agroecosystems: Evaluation Of Alternative Management Practices And Water Quality Models, Cameron Robert Twombly

Graduate College Dissertations and Theses

Agricultural runoff is one of largest contributors of phosphorus (P), nitrogen (N), and sediment affecting freshwater systems in watersheds across the Northeastern U.S., including the Lake Champlain Basin in Vermont. Agricultural cropping systems, such as corn silage and haylands, used for dairy feed production have been shown to impact watershed hydrology and water quality. Agricultural best management practices (BMPs) have the potential to decrease runoff volumes and flow rates and the associated export of nutrients and sediment from agricultural fields. Many states in the Northeastern U.S., including Vermont, are beginning to require farmers to implement water quality BMPs and further …

Timescales Of Global Tidal Flooding, Maria Bower

Honors Undergraduate Theses

Millions of people in low-lying areas are already affected by flooding, and the number will increase substantially in the future. Tidal flooding, the form of flooding caused by a combination of high tides and sea level rise to overcome protection levels, can cause damage and inconveniences such as road closures, overwhelmed drainage systems, and infrastructure deterioration from water damage. Tidal flooding already occurs annually in cities along the U.S. east coast, most notably Miami. However, the time it will take for other regions globally to begin to experience tidal flooding has not yet been assessed. Therefore, there is a limited …

Estudio Comparativo Del Perfil Del Motociclista En Cuatro Ciudades De Colombia: Bogotá, Medellín, Cúcuta Y Bucaramanga, Daniel Alfredo Martin Rojas, Daniela Pardo Castaño

Ingeniería Civil

No abstract provided.

Evaluación De Una Malla Tejida De Retamo Espinoso Ulex Europaeus L Para Protección De La Erosión En Taludes, Natalia Alejandra Ortiz Alzate

Ingeniería Civil

No abstract provided.

Modelo De Susceptibilidad A Deslizamientos Del Departamento De Cundinamarca Colombia, Fundamentado En Las Características Topográficas Del Terreno, Andrés Felipe Landínez Quintero, David Steven Beltrán Pérez

Ingeniería Civil

Colombia es un país que dada su geografía presenta diferentes problemas de remoción en masa como son los deslizamientos. En consecuencia, la falta de estudios sobre estos genera pérdidas económicas, razón por la cual necesitamos más información para efectuar análisis de gestión de riesgos. Por lo anterior, se realiza un análisis de susceptibilidad sobre deslizamientos en el departamento de Cundinamarca, Colombia. Esta investigación se desarrolla mediante un método no experimental con un enfoque cuantitativo y multivariado llamado análisis discriminante; donde se cuenta con diferentes variables topográficas del terreno obtenidas mediante imágenes satelitales y bases de datos confiables, además de un …

Análisis De Viabilidad Del Uso De Cenizas De Palma De Aceite Mezcladas Con Escoria Granulada Y Activadores Alcalinos Para Elaboración De Morteros De Recubrimiento, Beraldo Sánchez Moreno, Jorge Solano Silva

Ingeniería Civil

Este documento presenta el análisis de viabilidad del uso de cenizas de palma de aceite (CVPA) y escorias granuladas negras (EGN) en un remplazo progresivo del cemento Portland (CP) (25, 50, 75 y 100 %), el efecto que tiene las soluciones activadas de hidróxido de sodio (NH) y silicato de sodio (NS) en morteros elaborados con CVPA y EGN exclusivamente, y la influencia de diferentes temperaturas de curado (28 y 65°C). Se fabricaron 8 tipos de morteros incluyendo una mezcla patrón con CP, las demás mezclas varían el porcentaje de los diferentes materiales de cementante. Se evaluaron los parámetros físico-mecánicos …

Análisis Del Comportamiento Estructural De Una Tribuna En Concreto Reforzado Para Un Estadio Con Y Sin Aisladores De Base, Diego Camilo Ángel Giraldo, Camilo Andrés Rincón Chuscano

Ingeniería Civil

No abstract provided.

Kentucky Traffic Collision Facts 2018, Eric R. Green, Paul A. Ross, Christopher L. Blackden, Kentucky State Police

Kentucky Transportation Center Research Report

KENTUCKY’S TRAFFIC COLLISION FACTS report is based on collision reports submitted to the Kentucky State Police Records Branch. As required by Kentucky Revised Statutes 189.635, “every law enforcement agency whose officers investigate a vehicle accident of which a report must be made...shall file a report of the accident...within ten days after investigation of the accident upon forms supplied by the bureau.” The stated purpose of this requirement is to utilize data on traffic collisions for such purposes as will improve the traffic safety program in the Commonwealth. Data contained in this report are based solely on the observations and judgements …

Deterioration Modelling Of Bridges On Brm 5.2.3, Sudhir Palle, Theodore Hopwood Ii

Kentucky Transportation Center Research Report

The Kentucky Transportation Cabinet (KYTC) initiated the study KYSPR 17-532, “Deterioration Modelling of Bridges on BrM 5.2.3,” so it could receive assistance identifying and employing bridge deterioration and cost forecast modeling for its bridge maintenance program. The Kentucky Transportation Center (KTC) was to help coordinate KYTC in adapting BrM 5.2.3’s deterioration and cost modelling features and update the existing guide material to reflect all changes for BrM 5.2.3. This study included acquiring access and becoming familiar with AASHTO Bridge Management (BrM 5.2.3) software. It was also to explore opportunities for any training on BrM and BrM 5.2.3’s deterioration and cost …

Investigating The Use Of In-Place Lateral Pull Off Tests To Determine The Compressive Strength Of Structural Concrete, Charlie Sun

Kentucky Transportation Center Research Report

The Kentucky Transportation Cabinet’s current practice for determining the compressive strength of structural concrete consists of two methods. Both methods require that samples be delivered to an off-site facility for testing. Accordingly, affected parties on the project site must wait for the delivery of samples to the off-site facility, the performance of tests and analysis of test data, and the return of test results to the project site. Analysis of existing structural concrete requires core samples to be taken from the structural element in question. As a result, sample locations must be patched and repaired. Sampling can also potentially damage …

An Assessment Of Historical Traffic Forecast Accuracy And Sources Of Forecast Error, Jawad Mahmud Hoque

Theses and Dissertations--Civil Engineering

Transportation infrastructure improvement projects are typically huge and have significant economic and environmental effects. Forecasts of demand of the facility in the form of traffic level help size the project as well as choose between several alternatives. Inaccuracy in these forecasts can thus have a great impact on the efficiency of the operational design and the benefits accrued from the project against the cost. Despite this understanding, evaluation of traffic forecast inaccuracy has been too few, especially for un-tolled roads in the United States. This study, part of a National Cooperative Highway Research Program (NCHRP) funded project, bridges this gap …

Decomposing A Watershed’S Nitrate Signal Using Spatial Sampling And Continuous Sensor Data, Evan Clare

Theses and Dissertations--Civil Engineering

Watershed features, physiographic setting, geology, climate, and hydrologic processes combine to produce a time-variant nutrient concentration signal at the watershed outlet. Anthropogenic influences, such as increased agricultural pressures and urbanization, have increased overall nutrient loadings delivered to the fluvial network. The impact of such increased nutrient loadings on Kentucky’s drinking water remains a potential threat to the region.

By coupling spatial sampling of nitrate concentrations in surface water with contemporary nutrient and water quality sensor technology, a decomposition of the Upper South Elkhorn watershed’s nitrate signal and an estimation of source timing and loading in the watershed was completed. The …

Techno- Economic Feasibility Study Of Solar Water Pumping For Public Facilities In Nigeria, Anamika Singh

Cal Poly Humboldt theses and projects

This thesis presents a techno-economic feasibility analysis of solar water pumping systems in public facilities located in rural parts of Nigeria. Three different public facilities namely, a primary health care center in Ibwa (PHC, Ibwa), a comprehensive health care center in Kwali (CHC, Kwali), and the LEA Primary School in Mapa (LEA School, Mapa), all located in Federal Capital Territory (FCT) of Nigeria, were analyzed. The facilities considered in the study have varying levels of water demand (micro, small, and medium), and they are used as cases to establish the techno-economic suitability of solar water pumping systems to deliver water …

Development Of A Readiness Model For The Application Of Precast Concrete In Housing Construction: A Case Study In Myanmar, Aung Phone Myint

Chulalongkorn University Theses and Dissertations (Chula ETD)

Precast concrete construction has been verified that it is one of the solutions for the growth of urbanization and housing development. In addition, it helps to reduce the labor requirement and material wastage in construction. However, the use of precast concrete technology is not still popular and not widely used within the Myanmar housing construction industry. Moreover, there is no readiness assessment model encompassed the readiness of construction industry including major stakeholders who are representatives of the construction industry for accepting the new technology. Therefore, the aim of this study is to develop a readiness model that can assess the …

Planteamiento De Alternativas Para La Reutilización Del Drywall Como Residuo De Construcción Y Demolición-Rcd En Colombia, Juliana Alejandra Guzmán Cañón

Ingeniería Ambiental y Sanitaria

No abstract provided.

Análisis Y Recomendaciones Sobre Los Resultados De Las Pruebas Saber Pro-2017 Y 2018 En El Programa De Ingeniería Ambiental Y Sanitaria De La Universidad De La Salle, Fabián Esteban Pérez Bravo, Daniel Francisco Niño Sánchez

Ingeniería Ambiental y Sanitaria

El proyecto realizado especificado “Análisis y recomendaciones sobre los resultados de las pruebas sabre pro 2017-2018 en el programa de ingeniería ambiental y sanitaria de la Universidad de La Salle”, se ejecutó con el fin de generar una herramienta de información potencial para el programa de ingeniería ambiental y sanitaria (IAS) de la Universidad de La Salle cuyo objetivo será aplicar estrategias de refuerzo y progreso de cara para mejorar el modelo de educación actual en el programa y sus próximos desempeños en los exámenes nacionales de educación SaberPro. Para lograr estrategias específicas de desarrollo y hacer un análisis profundo …

Análisis De Riesgo Por Inundación Frente A Escenarios De Cambio Climático A Partir De La Modelación Hidrodinámica Y De Calidad De Agua En Iber - 2d De Un Tramo De La Microcuenca Quebrada Resaca - Palestina Del Barrio Duitama, Usme, Jorge Andrés Bolivar Fandiño, Diego Mauricio Pineda Toro, Ingrid Gisela Salcedo Herrera

Ingeniería Ambiental y Sanitaria

Las inundaciones se caracterizan por ser eventos recurrentes que se originan cuando por causas antrópicas o naturales es superada la capacidad de transporte o almacenamiento del flujo dentro de un sistema hídrico; el incremento en la precipitación producto del cambio climático ha incrementado la ocurrencia de fenómenos de inundación. En la microcuenca Quebrada Resaca-Palestina, tramo transcurrido en el barrio Duitama – Usme, se han generado escenarios de riesgo y vulnerabilidad para la comunidad aledaña a la ronda hídrica, debido a fenómenos de inundación por desbordamiento principalmente en temporadas de altas precipitaciones. Esta problemática se ha incrementado debido a la expansión …

Alternativa De Tratamiento De Agua Salobre Para El Mejoramiento Del Suministro Y Calidad De Agua Potable En La Ranchería De Jellusira Del Corregimiento De Musichi, En Manaure Guajira, Colombia, Vivian Melissa Díaz González, July Alejandra Rojas Gutierrez

Ingeniería Ambiental y Sanitaria

En este proyecto se formuló una alternativa de tratamiento de agua salobre para contribuir al mejoramiento del suministro y la calidad del agua potable de la ranchería Jellusira en el corregimiento de Musichi, en la jurisdicción de Manaure (Guajira, Colombia), partiendo de la evaluación de proyectos llevados a cabo en el contexto nacional e internacional. Para tal fin se dividió el proyecto en 3 etapas, la etapa inicial consistió en un análisis cualitativo de las condiciones actuales de la región, teniendo en cuenta los aspectos socioambientales. En la segunda etapa se evaluaron 4 proyectos de tratamiento de agua salobre, a …

Tsunamigenic Potential Of The Baiyun Slide Complex In The South China Sea, Linlin Li, Fengyan Shi, Gangfeng Ma, Qiang Qiu

Civil & Environmental Engineering Faculty Publications

The Baiyun slide complex contains geological evidence for some of the largest landslide ever discovered in the continental slopes of the South China Sea. High-resolution seismic data suggest that a variety of landslides with varied scales have occurred repeatedly in this area. The largest landslide reconstructed from bathymetric and seismic data has an estimated spatial coverage of ~5,500 km² and a conservative volume of ~1,035 km³. Here, using geomorphological and geotechnical data, we construct a series of probable landslide scenarios and assess their tsunamigenic capacity. By treating the slides as deformable mudflows, we simulate the dynamics of …

Evaluación De Un Sistema De Fitoacumulación En Raíces Por Medio De Un Humedal Artificial Subsuperficial De Flujo Horizontal Para Remediar Aguas Hidrocarburadas Con Gasolina Provenientes Del Vertimiento De La Eds Texana En Cumaral Meta, Camilo Andrés Jiménez Pulido, Valeria Esmeralda Castillo

Ingeniería Ambiental y Sanitaria

Esta investigación estuvo orientada a la evaluación de un sistema de fitoacumulacion en raíces conformado por tres humedales artificiales subsuperficiales de flujo horizontal, los cuales fueron formulados para remediar aguas hidrocarburadas con gasolina provenientes del vertimiento que se realiza al sistema de alcantarillado en la estación de servicio Texana ubicada en Cumaral Meta. Este tipo de humedales se consideran como un ecosistema que se compone de un sustrato que sirve para el soporte de la vegetación y permite la fijación de las plantas, adicionalmente sirve como medio poroso para el paso del flujo; como segundo componente se tiene el vertimiento …