Civil and Environmental Engineering Commons^™

The Effects Of Chemical Coagulants On The Decolorization Of Dyes By Electrocoagulation Using Response Surface Methodology (Rsm), Erick B. Butler, Yung-Tse Hung, Oliver Mulamba

Civil and Environmental Engineering Faculty Publications

This study assessed the efficiency of electrocoagulation (ECF) coupled with an addition of chemical coagulant to decolorize textile dye. Tests were conducted using Box Behnken methodology to vary six parameters: dye type, weight, coagulant type, dose, initial pH and current density. The combination of electrocoagulation and chemical coagulation was able to decolorize dye up to 99.42 % in 30 min of treatment time which is remarkably shorter in comparison with using conventional chemical coagulation. High color removal was found to be contingent upon the dye type and current density, along with the interactions between the current density and the coagulant …

Impulse, Matt Schmidt, Lora Berg, Christine Delfanian, Dave Graves, Heidi Kronaizl, Emily Weber, Micayla Standish

Impulse (Jerome J. Lohr College of Engineering Publication)

[Page] 2 Better Equipped
[Page] 4 Flashback Summer Scholars
[Page] 6 Biomedical Engineering
Ryan Mahutga is the third mechanical engineering graduate in five years to receive a prestigious National Science Foundation Graduate Research Fellowship.
Nigerian native John Asiruwa is working with associate professor Stephen Gent on a mechanical engineering project to help Sanford Health build better heart stents.
Electrical engineering graduate Bruce Lutz has selected the biomedical engineering program as a target for his future giving.
[Page] 9 Programs Accredited
[Page] 10 Fast Wheels
[Page] 12 Five Unforgettable Weeks
[Page] 14 Second in the Nation
[Page] 16 Athletes and Engineering …

Impact Of Surface Ozone Interactions On Indoor Air Chemistry: A Modeling Study, M. Kruza, A. C. Lewis, G. C. Morrison, N. Carslaw

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

An INdoor air Detailed Chemical Model was developed to investigate the impact of ozone reactions with indoor surfaces (including occupants), on indoor air chemistry in simulated apartments subject to ambient air pollution. The results are consistent with experimental studies showing that approximately 80% of ozone indoors is lost through deposition to surfaces. The human body removes ozone most effectively from indoor air per square meter of surface, but the most significant surfaces for C6-C10 aldehyde formation are soft furniture and painted walls owing to their large internal surfaces. Mixing ratios of between 8 and 11 ppb of C6-C10 aldehydes are …

Cfrp Strengthening Of Ky 583 Over The Bluegrass Parkway Bridge In Hardin Country, Abheetha Peiris, Issam E. Harik

Kentucky Transportation Center Research Report

The report details the planning, design, and construction of the retrofit measure on the KY 583 Bridge (047B00072N), which traverses the Bluegrass Parkway in Hardin County, Kentucky. Reinforced concrete girders within the span over the eastbound Bluegrass Parkway of the bridge had cracks that led to concrete delamination and deterioration of the girders.

To remedy the problem, triaxial carbon fiber reinforced polymer (CFRP) fabric sheets were selected to perform a retrofit due to their strength, conformability, and flexibility. The concrete surface, over which the fabric sheets were applied, were first prepared by removing all spalling and deteriorated concrete, which exposed …

Kytc Maintenance Overview And Budget Analysis, Nancy Albright, Bryan Gibson, Steven Douglas Kreis

Kentucky Transportation Center Research Report

The Kentucky Transportation Cabinet (KYTC) manages over 27,500 miles of the state’s roadways and is responsible for preserving many assets in a good state of repair, including bridges, traffic signals, lighting features, traffic signs, and guardrails. The Cabinet’s Maintenance function, which encompasses maintenance (e.g., patching potholes, repainting roadway lines and markings, cleaning bridges, mowing) and operations (e.g., plowing and salting roadways; keeping signs, traffic signals, and roadway signals functional), had a budget in FY 2018 of roughly $350 million. This report describes core maintenance functions and reviews their importance for preserving Kentucky’s roadway network and analyzes trends in KYTC’s maintenance …

Early Empirical Evidence For The Effects Of Adaptive Ramp Metering On Measures Of Travel Time Reliability, Travis Charles Low

Master's Theses

Adaptive ramp metering (ARM) is a critical component of smart freeway corridors under an active traffic management portfolio. While improving capacity through smart corridors and application of proactive traffic management solutions is less costly and easier to deploy than freeway widening, conversion to smart corridors still represents a sizable investment for a state department of transportation. Early evidence of improvements following these projects can be valuable to agencies. However, in the U.S. there have been limited evaluations, of smart corridors in general and ARM in particular, based on real operational data. This thesis explores travel time reliability measures for the …

Quantifying Roadside Assessment For Highway Safety, Reginald R. Souleyrette, Michael A. Fields, Heather Hunt

Kentucky Transportation Center Research Report

Many of Kentucky’s two-lane rural roads pose an above average risk for fixed object crashes. In Kentucky, run-off-road (ROR) collisions with fixed objects account for 18.9% of all crashes and 41.6% of fatal crashes. Accordingly, ROR crashes are a significant public safety hazard that must be addressed through judicious investments in safety improvements. Until recently, transportation engineers and planners have mostly leveraged qualitative metrics to prioritize safety investments, however, qualitative methodologies are problematic because they may rely excessively on subjective opinion and intuition. This study applied methodologies and software from the U.S. Road Assessment Program (usRAP) to develop quantitative, objective …

Long-Term Corrosion Protection Of Bridge Elements Reinforcing Materials In Concrete, Christopher W. Van Dyke, Bobby W. Meade, Danny Wells, Sudhir Palle, Theodore Hopwood Ii

Kentucky Transportation Center Research Report

Preventing or mitigating the corrosion of reinforcing steel in bridge decks is a major challenge for state transportation agencies. With agency budgets stretched thinner every year, they must implement strategies to extend the service lives of bridges and other critical structures. As such, it is imperative for them to adopt cost effective materials and maintenance practices to delay the onset of bridge corrosion. To assist the Kentucky Transportation Cabinet (KYTC) in its efforts to improve the condition of its bridges as well as its construction and maintenance practices, researchers at the Kentucky Transportation Center (KTC) investigated the use and performance …

Large-Scale Testing Of Low-Strength Cellular Concrete For Skewed Bridge Abutments, Tyler Kirk Remund

Theses and Dissertations

Low-strength cellular concrete consists of a cement slurry that is aerated prior to placement. It remains a largely untested material with properties somewhere between those of soil, geofoam, and typical controlled low-strength material (CLSM). The benefits of using this material include its low density, ease of placement, and ability to self-compact. Although the basic laboratory properties of this material have been investigated, little information exists about the performance of this material in the field, much less the passive resistance behavior of this material in the field.In order to evaluate the use of cellular concrete as a backfill material behind bridge …

Teaching Professional Skills In Engineering Programmes: The Academic Perspective, Una Beagon

Other resources

My interest in preparing engineering students for a successful career in industry stems from personal experience of recruiting, mentoring and managing graduates in civil and structural engineering consultancies. The range of skills, abilities and values of each graduate was varied, and it became apparent that academic achievement, whilst important, was not the defining skill for achieving early responsibility or promotion within the company. More often, the graduate who could communicate well and self-direct his/her work was given more responsibility and opportunity.

The intent in this paper is to present a plan for a PhD research study in order to elicit …

Kytc Sidewalk And Curb Ramp Inventory For Ada Compliance, Reginald R. Souleyrette, Brian K. Howell, William Nicholas Staats

Kentucky Transportation Center Research Report

The Americans with Disabilities Act of 1990 (ADA) requires that all public and private organizations providing services to the public ensure their facilities and infrastructure comply with regulations set forth therein. The ADA requires that a transition plan “identify physical obstacles in the public entity’s facilities that limit the accessibility of its programs or activities to individuals with disabilities.” In the first phase of Kentucky’s transition plan to become ADA compliant, KTC researchers inventoried sidewalks along all state-maintained roads in Kentucky to determine the presence or absence of pedestrian facilities. This sidewalk inventory was used to query Kentucky’s intersection database …

Analysis Of Traffic Crash Data In Kentucky (2012-2016), Eric R. Green, Kenneth R. Agent, Jerry G. Pigman, Paul A. Ross

Kentucky Transportation Center Research Report

This report documents an analysis of traffic crash data in Kentucky for the years of 2012 through 2016. A primary objective of this study was to determine average crash statistics for Kentucky highways. Rates were calculated for various types of highways and for counties and cities. Difference criteria were used for exposure.

The other primary objective of this study was to provide data that can be used in the preparation of the problem identification portion of Kentucky’s Annual Highway Safety Plan. County and city crash statistics were analyzed. A summary of results and recommendations in several problem identification areas is …

A Hierarchical Modelling Approach For Assessing The Impact Factors Of The Measured Of Mobility And Safety At Intersections, Hiba Eyesha Abou-Kassem

Civil and Environmental Theses

Measuring safety and mobility for various types of intersections is crucial in any transportation study. Many factors contribute to changing the effectiveness of the different types of intersections on mobility and safety. Deciding which type of intersection is most suitable in a particular environ and prevailing traffic conditions depends on the number of crashes, injuries, delay time, etc. This study focuses on two intersection types; signalized intersections and non-signalized intersections (only roundabouts). The aim of this research is to devise a theoretical modeling framework and hence a statistical-based methodology that can be used to assess the safety and mobility measures …

Hydrologic Impacts Of Bioswale Porous Media On Parking Lot Drainage, Jungseok Ho, James Jihoon Kang

Civil Engineering Faculty Publications

Bioswales are stormwater control structures designed stormwater runoff volume and filter stormwater solids and pollutant from surface runoff. Bioswale generally consists of sloped surface ground with native wetland plants to lead stormwater percolation and infiltration, porous media to allow for stormwater retention and stormwater contaminant filtration, and stormwater drain conduit under the porous media. In this study, we monitored the bioswale evaluation factors of stormwater total volume reduction, peak flow rate reduction, and peak time attenuation. It is concluded that, based on a total of 29 monitoring of storm events, pumice is a hydrologically best performing material for the bioswale …

Application Of Ihsdm: Ky 30 Case Study, William Nicholas Staats, Adam J. Kirk

Kentucky Transportation Center Research Report

A section of KY 30 in Jackson and Owsley Counties is targeted for redesign to provide a safer and more efficient corridor that will support economic activity in eastern Kentucky. Data for the existing KY 30 alignment and eight alternative alignments developed by HMB Professional Engineers Inc. were provided to researchers at the Kentucky Transportation Center (KTC). KTC researchers also developed a new alternative that modified the existing alignment to improve the safety of various locations. Researchers applied safety analysis procedures from Part C of the Highway Safety Manual (HSM) to the existing and alternative alignments of KY 30 using …

Bs News September/October

Building Services Engineering

No abstract provided.

Streamlined Project Closeout For Construction At Kytc, Tyler A. Johnson, Dominic A. Michaels, Roy E. Sturgill, Timothy R. B. Taylor

Kentucky Transportation Center Research Report

Project closeout is the period between the end of construction and when a contract is finalized. During closeout, resources are held in encumbered funds intended for the project and in the contractor’s bonding capacity. Although the Kentucky Transportation Cabinet’s (KYTC) stated goal is to close out projects within 240 days of their ending, in 2016 the average duration of project closeout was 366 days. This report analyzes the Cabinet’s project closeout procedures, summarizes project closeout best practices adopted by other state transportation agencies, and recommends ways to improve KYTC’s practices. Streamlining project closeouts would free up sufficient funds to resurface …

Vulnerability Model Of Residential Structures Subject To Hurricane Induced Wind, Surge And Inundation, Mohammad Baradaranshoraka

Theses and Dissertations

Annualized hurricane-related losses to the built environment in the United States are in the billions of dollars. According to the National Oceanic and Atmospheric Administration, in 2010 39% of the United States population, or 123.3 million inhabitants, lived in a coastal county. This population is expected to increase by 8% from 2010 to 2020. The majority of these people live in buildings prone to hurricanes. The hurricanes can result in wind damage (due to high wind and/or wind-driven rain infiltration) and water damage (due to storm surge and waves or freshwater flooding) to the building and its contents, which are …

Estimating Vehicles Emissions At Signalized Intersections In The Highway Capacity Manual, Yuanyuan Fan

Dissertations

Over the past decades, motor vehicle volumes have continued to increase at a high rate. As a result, engineers in the transportation field not only need more robust knowledge of traffic operation control and transportation planning, but more attention is also needed to understand and estimate the influences that this increasing volume of vehicles has on the environment, especially the influence on air quality. The EPA has stated that reducing carbon monoxide (CO) from vehicle emissions is the most significant way to control air pollution from the transportation sector.

The Highway Capacity Manual is a national and international resource that …

15-06 Integrated Crowdsourcing Platform To Investigate Non-Motorized Behavior And Risk Factors On Walking, Running, And Cycling Routes, Ala Al-Fuqaha, Sepideh Mohammadi, Jun-Seok Oh, Valerian Kwigizile, Fadi Alhomaidat

Transportation Research Center Reports

There are several factors on the roads that impact bicyclists’ safety. This research aims to find the most important risk factors on roads, mainly in infrastructure facilities, to improve the safety for walkers, runners, and bicyclists. Most mobile cycling applications currently used by cyclists and runners were reviewed in this study in order to gain insight about the features that users care about. Features, such as speed, cumulative elevation gain, and connectivity to Google Fit, were found to be the most common features in the widely-used cycling apps. In this research, we developed and launched a mobile application for crowd-sourcing …

15-01 Effect Of Cycling Skills On Bicycle Safety And Comfort Associated With Bicycle Infrastructure And Environment, Jun-Seok Oh, Valerian Kwigizile, Kapseong Ro, Ahmad Feizi, Brent William Kostich, Raed Abdullah Hasan Hasan, Fadi Abdallah Mousa Alhomaidat

Transportation Research Center Reports

This study seeks to improve the methodology for determining the relationship between cycling dynamic performance and roadway environment characteristics across different bicyclists’ skill levels. To achieve the goal of this study, an Instrumented Probe Bicycle (IPB) equipped with various sensors was built. A naturalistic field experiment, including intersections, roundabout, alignment changes, and different road surface conditions, was conducted. Two self-reported questionnaires were used in order to obtain each participant’s skill level as well as perception on the level of cycling comfortability. The Cycling Comfortability Index (CCI) was derived from the probabilistic outcome of an Ordered Probit Model, which describes the …

Water Use In Irrigated Agriculture: An Approach To Water Productivity In Drip And Sprinkler Systems, Fernanda Lamede Ferreira De Jesus, Jéssica Garcia Nascimento, Rubens Duarte Coelho, Sergio Nascimento Duarte, Fernando Campos Mendonça

Daugherty Water for Food Global Institute: Faculty Publications

Irrigation plays an important role in agriculture and the increase in the irrigated area and scarce water resources have encouraged the use of irrigation systems and management systems that increase the efficiency of water use. Thus, maximize water productivity has been one of the most important challenges in agriculture. The present study aimed to relate information on water productivity for two irrigation systems, drip and sprinkler systems, with the purpose of understanding the characteristics of these systems and contributing to the advancement of studies and research carried out in the area. Technological innovations aimed at reducing consumption and increasing water …

Designing And Implementing A Network For Sensing Water Quality And Hydrology Across Mountain To Urban Transitions, Amber Spackman Jones, Zachary T. Aanderud, Jeffery S. Horsburgh, David P. Eiriksson, Dylan Dastrup, Christopher Cox, Scott B. Jones, David R. Bowling, Jonathan Carlisle, Gregory T. Carling, Michelle A. Baker

Civil and Environmental Engineering Faculty Publications

Water resources are increasingly impacted by growing human populations, land use, and climate changes, and complex interactions among biophysical processes. In an effort to better understand these factors in semiarid northern Utah, United States, we created a real-time observatory consisting of sensors deployed at aquatic and terrestrial stations to monitor water quality, water inputs, and outputs along mountain to urban gradients. The Gradients Along Mountain to Urban Transitions (GAMUT) monitoring network spans three watersheds with similar climates and streams fed by mountain winter-derived precipitation, but that differ in urbanization level, land use, and biophysical characteristics. The aquatic monitoring stations in …

15-11 Assessing Transit Oriented Development Strategies With A New Combined Modal Split And Traffic Assignment Model, Guangchao Wang, Anthony Chen, Ziqi Song, Songyot Kitthamkesorn

Transportation Research Center Reports

Transit oriented development (TOD) has emerged in recent years as a promising paradigm to promote public transportation, increase active transportation usage, mitigate congestion, and alleviate air pollution. However, there is a lack of analytic studies investigating the benefits of TOD quantitatively. Two major challenges of modeling a multimodal transportation network with TOD areas are: (1) failing to consider differences in feasible travel options available to different households in TOD areas may lead to inaccurate representations of travelers’ mode choice behavior, and (2) route overlapping is one of the major concerns in the route choice models used in the traffic assignment …

Long-Term Assessment Of Climate Change Impacts On Tennessee Valley Authority Reservoir Operations: Norris Dam, Joseph Rungee, Ungtae Kim

Civil and Environmental Engineering Faculty Publications

Norris Reservoir is the oldest and largest reservoir maintained and operated by the Tennessee Valley Authority (TVA). Norris Dam received a new operating guide in 2004; however, this new guide did not consider projected climate change. In an aging infrastructure, the necessity to assess the potential impacts of climate change on water resources planning and management is increasing. This study used a combined monthly hydrologic model and a general circulation model’s (GCM) outcome to project inflows for three future time spans: 2030s, 2050s, and 2070s. The current operating guide was then assessed and optimized using penalty-function-driven genetic algorithms to gain …

The Subject Librarian Newsletter, Engineering And Computer Science, Fall 2017, Buenaventura "Ven" Basco

Libraries' Newsletters

No abstract provided.

Enhancing The Performance Of Anaerobic Bioreactors For The Biological Degradation Of Volatiles Organic Compounds In Groundwater Using Alternate Electron Acceptors, Leslie Michele Pipkin

LSU Doctoral Dissertations

Engineered anaerobic bioreactors (ABR) constructed from mixed media and sand can biodegrade high concentrations of volatile organic compounds (VOCs). Sustainable treatment of benzene, toluene, ethylbenzene, and xylenes (BTEX), chlorinated ethenes and ethanes were used to investigate the use of engineered ABRs, while also analyzing the system performance of a full-scale ABR system. Experimentations conducted on environmental and biological factors that affect ABR system performance was conducted through serum bottles, columns, and reactor studies.

Column and reactor ABR systems were designed to treat VOCs via biodegradation in groundwater with varying terminal electron acceptors (TEAs). Laboratory-scale column ABRs were constructed to treat …

Bim+Blockchain: A Solution To The Trust Problem In Collaboration?, Malachy Mathews, Dan Robles, Brian Bowe

Conference papers

This paper provides an overview of historic and current organizational limitations emerging in the Architecture, Engineering, Construction, Building Owner / Operations (AECOO) Industry. It then provides an overview of new technologies that attempt to mitigate these limitations. However, these technologies, taken together, appear to be converging and creating entirely new organizational structures in the AEC industries. This may be characterized by the emergence of what is called the Network Effect and it’s related calculus. This paper culminates with an introduction to Blockchain Technology (BT) and it’s integration with the emergence of groundbreaking technologies such as Internet of Things (IoT), Artificial …

Analysis Of Traffic Collisions In Dublin Using Gis Based System, Jagteshwar Singh, Niamh O' Reilly

Conference papers

This study aims to analyse traffic collisions in the Greater Dublin Region between the period 2006-2012, using GIS to identify hotspots and examine the relationship between collisions and a range of contributory factors including vehicular speeds, traffic volume, road curvature, road category and distance from intersection that could enable prediction of traffic collisions. To this end, Road Safety Authority (RSA) collision data for Dublin Region geocoded as point events, road profiles, traffic flow characteristics on which these occur are spatially merged using ArcGIS and FME software to establish if a significant relationship exists between collision frequencies on road links and …

Performance Evaluation And Development Of Mechanistic Empirical Pavement Design Procedure Of Thin Rcc Pavements, Moinul Islam Mahdi

LSU Doctoral Dissertations

With the increasing shale gas exploration, agricultural and logging activities on the low volume roadways, the Louisiana Department of Transportation and Development (LADOTD) and the Louisiana Transportation Research Center (LTRC) are interested in thin applications of Roller Compacted Concrete (RCC) to be used as a design alternative for those low volume roadways having frequently heavy truck trafficking. The objectives of this research were: (1) to evaluate the structural performance and cracking failure mechanism of thin RCC pavements; (2) to develop a mechanistic-empirical based RCC pavement thickness design procedure for LADOTD to use in their low-volume pavement design.

In this study, …