Engineering Commons^™

Session 3a: Karst And Groundwater, Kentucky Water Research Institute

Kentucky Water Resources Annual Symposium

• Examining the Utility of Tryptophan-Like Fluorescence As a Proxy for Fecal Contamination in Karst Basins, Inner Bluegrass Region, Kentucky
• A Predictive Flood Model for Urban Karst Environments
• Improving Best Management Practices for the Siting, Maintenance, and Design of Urban Karst Groundwater Injection Wells

Session 3b: Sediments, Kentucky Water Research Institute

Kentucky Water Resources Annual Symposium

• Sediment Degradation Experiments for a Low Gradient Stream Suggest the Watershed’s Connectivity Regime Exhibits Control on Stream Biogeochemistry
• Does Sediment Organic Matter Content Mediate the Effects of Chironomid Larvae on Benthic Nitrous Oxide Flux
• Drivers of Variability in Annual Sediment Accretion Rates Within Wetland Easements of Western Kentucky

Poster Session, Kentucky Water Research Institute

Kentucky Water Resources Annual Symposium

• Evaluating the Effects of Beaver Dam Removal on the Hydrology, Water Quality, and Bioindicators of a Restored Wetland
• Predictive Sediment Flux Modeling of a Karst Spring Using High Resolution Sensors and Stable Carbon and Nitrogen Isotopes
• Development and Validation of qPCR Assays for Use in eDNA Detection of Four Species of Semiaquatic Salamanders .
• Analyzing Recent Spatio-Temporal Rainfall Erosivity Patterns and Trends Across Kentucky
• Development of eDNA Protocols for Detection of Four Darter (Percidae: Etheostomatinae) Species in Central Kentucky Streams
• Assessing Change in the Seasonality of Stable Isotopes δ18O and δ2H for Meteoric and Terrestrial Waters of Central Kentucky
• Coupling …

Session 2: Water And The Community, Kentucky Water Research Institute

Kentucky Water Resources Annual Symposium

• Development of Human Health Criteria for Surface Waters of the Commonwealth of Kentucky
• Kentucky Workforce Survey Results
• Modeling, Managing, and Mitigating Stormwater Flooding using a Real-time Monitoring Network and Environmental Equity Approach

Session 1a: Watershed Management, Kentucky Water Research Institute

Kentucky Water Resources Annual Symposium

• Motivations and Barriers to the Implementation of Riparian Buffer Zones on Central Kentucky Horse Farms
• Engaging Urban Watershed Stewards in Stormwater Management
• Efficacy Examination of Urban Reforestation Efforts on Streams in Lexington, KY: Macroinvertebrates and Water Quality Assessments
• Over a Decade of Monitoring Water Quality at McConnell Springs – What Have We Learned?
• Glenns Creek Watershed Characterization Efforts

Session 1b: Contaminant Exposure And Treatment, Kentucky Water Research Institute

Kentucky Water Resources Annual Symposium

• Cyanobacteria, Cyanotoxin Synthetase Genes, and Cyanotoxin Occurrence Among Selected Large River Sites in the Lower Ohio River Basin, 2020–21
• Emerging Contaminant Exposure Following WWTP Processes to Surface Waters
• Reactive Membrane Synthesis for Capture and Degradation of Toxic Water Contaminants
• Implications to Tap and Stream Water Chemistry Due to Variations in Sampling Location and Watershed Land Use
• Examining Toxicity of 2D Nanomaterial Phosphorene, Free-Standing and Embedded onto Membranes, and Its Application for Removal of Per-and Polyfluoroalkyl Substances (PFAS)

Proceedings Of 2022 Kentucky Water Resources Annual Symposium, Kentucky Water Resources Research Institute, University Of Kentucky

Kentucky Water Resources Annual Symposium

This symposium was planned and conducted as a part of the state water resources research institute annual program that is supported by Grant/Cooperative Agreement Number G21AP10631-00 from the United States Geological Survey (USGS). The contents of this proceedings document and the views and conclusions presented at the symposium are solely the responsibility of the individual authors and presenters and do not represent the official views of the USGS or of the symposium organizers and sponsors. This publication is produced with the understanding that the United States Government is authorized to reproduce and distribute reprints for government purposes. Mention of trade …

Using Design Science Research To Create A Virtual Environment For Nursing Students, Benjamin Botha, Lizette De Wet

African Conference on Information Systems and Technology

This paper aims to provide insight into the design science research approach followed during a transdisciplinary research study between computer scientists and professional nurses. The researchers used a design science research approach to create a virtual environment where nursing students could practice managing a patient with a foreign object in the right lung. The virtual environment underwent multiple changes as it progressed through the different cycles of design science research. Within these cycles, namely the relevance, design, and rigor cycle, various iterations of each of the cycles took place. Presented in this paper the design science approach followed will be …

Factors Affecting The Adoption Of Information And Communication Technologies In Africa: Literature Review, Edison Wazoel Lubua

African Conference on Information Systems and Technology

This paper synthesised the literature on the adoption of Information and Communication Technology within Africa. The purpose was to determine factors (reported by the literature) determining technology adoption and use, in Africa. The paper used the systematic literature review. The study analysed the factors descriptively. Based on the analysis, the following are the main five factors reported to affect the adoption and use of Information Technology in Africa: Lack of ICT knowledge, unreliable infrastructure, high cost of adoption, the perceived usefulness of ICT, and the perceived ease of use. The government and technology implementing organisation has the key role to …

Removal Of Selenium And Heavy Metals From Coal Combustion Residuals Wastewater Using Surface Modified Iron Based Media, Madan Tandukar, Alex Korff, Andrew Vincent, Chris Hardin

World of Coal Ash Proceedings

No abstract provided.

2022 Technical Program, Inspire - University Transportation Center

INSPIRE-UTC Annual Meetings

INSPIRE University Transportation Center 2022 Annual Meeting
August 1-2, 2022

Evaluation Of The Chloride Ions Penetration Into Concrete Structure With The Surface Penetrants Served In Cold Marine Environment For 20 Years, Yanhua Kuang, Yuki Sakoi Associate Professor, Naoto Takashima Postgraduate, Minoru Aba Professor, Yoichi Tsukinaga Professor,

International Conference on Durability of Concrete Structures

The intrusion of chloride ions in concrete served in the marine environment is the leading cause of corrosion of steel bars. This paper examined the result of a long-term survey on the actual structure (the Tomakomai breakwater) treated with a set of penetrants partly. The survey was conducted twice, in the 12th and 20th years after construction.

The results showed that the penetrants could effectively reduce the penetration of chloride ions into concrete. After using the penetrants, the calculated surface chloride ion concentration was decreased by 5.04%/72.18% (the 12th year/the 20th year). As the service years increase, surface chloride ion …

Aiaa Design Build Fly Humanitarian Uav, Michael Finigian, Kyle Abbas, David Fryer, Kyle Bartholomew, Jacob Kaufman, William Ryan, Tyler Kwapniowski, Adam Witusik

Discovery Day - Prescott

Every year AIAA issues a challenge to any undergraduate universities willing to meet it: to build an unmanned aerial vehicle (UAV) designed to mission and product characteristics. This year the UAVs are to carry two different payloads in four missions with varying objectives, take-off distances, flight times and flight distances. The two payloads are large plunger syringes and mock vaccine vial packages. The Embry-Riddle Prescott team has decided that the best way to approach these competitions is to split responsibilities evenly between four integrated product teams (IPTs); Aerodynamics, Structures, Propulsion and Missions. In the early stages of the design process, …

Reconnaissance And Documentation (Rad), Cayli Farias, Terra Gordon, Sharik Joseph, Julia Kjenstad, Michael Lauber, Dakota Ross, Logan Hill, Dominick Uzzardo, Richard Harold

Discovery Day - Prescott

The Reconnaissance and Documentation (RAD) mission aims to utilize a Low Earth Orbit satellite using machine learning enabled image recognition and optical remote sensing to observe countries currently experiencing Stage Nine of the United Nations’ Ten Stages of Genocide. The primary objective of the RAD satellite, Leza, is to observe high-risk countries at adequate spatial and temporal resolutions to capture evidence of genocide. The secondary objective of Leza is to process images on-board, so flagged images serving as evidence may be distributed to proper authorities, the United Nations, and mainstream media outlets as soon as possible. Using remote sensing to …

Mybody Safety System, Diego Draguicevich, Nicholas Rodriguez

Discovery Day - Prescott

To any university, the safety of students, faculty, and staff when on campus is paramount. To enhance safety, many campuses have “safety stations” of some sort scattered throughout. However, campuses such as Embry-Riddle Prescott also have hiking trails nearby. Safety pillars on hiking trails would be prohibitively expensive to build and maintain, and would also be less useful due to a longer response time for security officers. The MyBody System seeks to resolve these issues by introducing a system which is affordable, self-enclosed, solar powered and easy to maintain. The system would achieve this via custom wireless speakers disguised as …

Thermal Analysis Of The Temperature Gradient Across Pintle Injector Face, Zoe Brand

Discovery Day - Prescott

Proper analysis of the temperature gradient across the pintle injector face is a complicated surface to acquire a reading from. Complications arise from the extreme temperatures seen on the combustion side mixed with the ambient temperatures seen on the fuel side of the injector. The orientation of temperature sensor placement is critical to mitigate hot spots and not disrupt the thermal flow through the injector face. The installment of the temperature sensors is also a critical issue since a new medium would need to be added to keep the sensor in place. The goal of this research is to figure …

Eaglenautics: Sae Aero West Design Competition Team, Steven Booth, Jessica Millard, Celin Rawther

Discovery Day - Prescott

Eaglenautics is an engineering club affiliated with Embry-Riddle Aeronautical University. Every year, Eaglenautics participates in the SAE Aero West Design Competition. This competition challenges teams to design a competitive R/C scale aircraft from the ground up. Eaglenautics tackles this challenge by using a modified design-build-fly (DBF) process by adding a simulation step after the design step. Simulation software allows for a faster convergence to a design before the build process starts. Eaglenautics utilizes simulation programs like XFLR5 and OpenVSP to aid with the design of the aircraft to save time building multiple aircraft iterations. This process is especially helpful for …

Effects Of Equivalence Ratio During Shutdown Of A Rocket Engine On Hardware Longevity, Benjamin Black

Discovery Day - Prescott

During the shutdown or purge period after firing of a rocket engine it is critical to understand what equivalence ratios are desirable and implement a shutdown sequence so that the hardware is subjected to the lowest thermal and mechanical loading. Furthermore, it is essential that hazards to the test technicians caused by this method be minimized. The initial study was conducted into combustion mechanics, to understand how the reactants would ideally behave at varying equivalence ratios and in both pre-mixed and diffusion flame combustion. Using this foundation an analytical model for a Propane-Oxygen flame was created and tested using a …

Space Debris Characterization Using Machine Learning Methods, Anson Biggs, Ana Bader-Elenes

Discovery Day - Prescott

Orbital debris is a form of pollution that is growing at an exponential pace and puts current and future space infrastructure at risk. Satellites are critical to military, commercial, and civil operations. Unfortunately, the space they occupy is increasingly becoming more crowded and dangerous, potentially leading to a cascade event that could turn orbit around the Earth into an unusable wasteland for decades proper mitigation is not introduced. Unfortunately, existing models employed by NASA rely on a dataset created from 2D images and are missing many crucial features required for correctly modeling the space debris environment. Our approach uses highresolution …

Team Keryx: Project Lifelink, Robert Belz-Templeman, Evan Hefflin, Jessica Millard, Ariana Anderson, Jacob Hindmarsh, Corey Washburn

Discovery Day - Prescott

First responders such as wildland firefighters, search and rescue crews, and disaster relief workers often operate in cellular-service-denied environments. This lack of long-range communication channels greatly inhibits the spread of vital information. Project LifeLink is Team Keryx’s capstone project designed to solve this issue as well as meeting the course goals of AE 420/421. The course goals for AE 420/421 are to utilize the skills and knowledge obtained in prior classes to design, develop, build, and test an aircraft tailored to a specific challenge. The students will work together in an organized structure and process to prepare them for industry …

Proposal To Augment U.S. Army Lsa And Uars, Cameron Beard

Discovery Day - Prescott

The U.S. Army currently has a gap in its aerial reconnaissance capabilities, with the OH-58D Kiowa completing its phase transition to the AH-64E. Since the Army has done away with its rotary-wing scout aircraft, it currently relies on the AH-64E attack helicopter (an aircraft not designed for such a role), in tandem with UAS RQ- 7Bs and MQ-1C Grey Eagle. These aircraft use the MUM-T (Manned-Unmanned Teaming) system, which allows AH-64E pilots to control the camera and weaponry of the drones while both aircraft are in flight. The draw back to this system lies in two categories; 1) the inability …

Interactive Planetarium Project, Eric Babcock, Cody Park, Johann Van Hilst

Discovery Day - Prescott

The Interactive Planetarium Project will design and build the software framework for connectivity between the Digistar 6 planetarium projection software and the smartphones of all audience members in the Jim and Linda Lee Planetarium. The goal of this project is to make planetarium shows more participatory, add a feature to our planetarium shows that many other universities do not yet have, and create a framework for future students and faculty to build from. To demonstrate our technology, we will make a real-time competitive trivia game able to support 60 concurrent users (number of expected audience members in the planetarium).

The …

Tip Driven Rotor System, Kevin Allyas

Discovery Day - Prescott

The Tip-Driven Rotor System (TDRS) Project is a product designed for KRyanCreative, LLC (KRC), as the basis of a Levitated Annular Rotor System (LARS) for commercial and tactical military vertical takeoff and landing (VTOL) vehicles. Conceptually, this design will greatly increase power density and lift capacity over conventional shaft-centric helicopters. The design also enables variable rotational velocity control that can greatly expand the VTOL flight envelope. The LARS innovatively leverages electromagnetism and superconductive levitation in the transfer of energy from vehicle source to aerodynamic lifting surface. The benefits of LARS include: the reduction of wing tip vortices due to a …

The Effects Of Curing Temperature On The Hydration Kinetics Of Plain And Fly Ash Pastes And Compressive Strength Of Corresponding Mortars With And Without Nano-Tio2 Addition., Dan Huang, Mirian Velay-Lizancos, Jan Olek

International Conference on Durability of Concrete Structures

Incorporation of fly ash in cementitious systems containing ordinary portland cement (OPC) increases their long-term strength and durability. However, replacement of cement by fly ash also reduces the heat of hydration of such systems and reduces early-age strength development. The reduced rate of strength development can increase the risk of durability problems, e.g. scaling, in cases when young concrete is exposed to low temperatures and deicing chemicals. This study investigated the potential of nano-titanium dioxide (nano-TiO₂) particles to modify the hydration kinetics of fly ash pastes and compressive strength development of corresponding mortars cured under low (4°C) and …

The Degradation Of Concrete Tunnel Wall Panels: A Case Study, Christian Paglia

International Conference on Durability of Concrete Structures

Concrete panels are often used along tunnel walls for technical and aesthetic purposes. Generally, the environment in contact with such materials is aggressive. Emission gases from the vehicles, sulphates, chlorides coming from the winter salt spreading, high temperature and humidity promote an acceleration of the deterioration phenomena. In this work 30 years old concrete panels placed along a 16 km long highway tunnel across the Alps were investigated with respect to their durability. The focus was given to the tunnel entrance zone. This region of the tunnel exhibited a critical environment with respect to the durability of the cementitious material …

End Effect Of Corroded Steel Bar In Concrete Specimen During Corrosion Test By Galvanostatic Method, Peng Zhao, Gang Xu, Qing Wang, Xuan Wang

International Conference on Durability of Concrete Structures

The galvanostatic method is a commonly used accelerated corrosion method in studying the durability of concrete structures caused by steel corrosion. If this method is not adequately controlled, the ends of steel bars will be corroded seriously (this phenomenon is called end effect), which is not common in natural corrosion. How to effectively control the end effect during electrified corrosion is helpful to make the characteristics of electrified corrosion more similar to that of natural corrosion. In this paper, experimental and electromagnetic numerical simulation methods are used to study the influence of cathode and corrosion medium coverage area along the …

Investigation Of Chloride Transportation Mechanism In Reinforced Concrete Specimen Subjected To Eccentric Compression, Yong Dong Yan

International Conference on Durability of Concrete Structures

In order to deal with the chloride ion transportation mechanism in eccentric compressive concrete pier and column in marine environment, stress distribution in the section of eccentric compressive concrete specimen was analyzed firstly, relationship between chloride diffusion coefficient and stress level was developed according to porosity varying under different loads, at last a model of chloride diffusion coefficient under varying stress level was developed. Conversion-diffusion equation in COMSOL Multiphysics was used in this paper to calculate the chloride ion transportation process. Three test beams with different mixture were cast and then loaded to different stress level. After that, all of …

Finite Element Modeling Of Thermal Effect On Airport Slabs, Chuanyue Shen

International Conference on Durability of Concrete Structures

A sub-ground tunnel connecting two concourses of a terminal at Chicago O’Hare International Airport suffered from water leakage. The airport engineers suspected that the problem was caused by high stresses impinging on the tunnel structure by the pavement sections above the tunnel, acting to damage joints and waterproofing membranes that should have prevented such leakage. To provide a fundamental solution to this problem while minimizing the interference with airport operation, a repair strategy needs to be determined based on a clear understanding of the root cause. A preliminary field inspection confirmed that the concrete pavement slabs moved significantly when ambient …

Application Of Multi-Environmental Time Similarity Theory Based On Relative Information (Ri-Mets) Theory In Durability Of Concrete Structures In Marine Chloride Environment, Zhang Kai

International Conference on Durability of Concrete Structures

The Multi-environmental time similarity (METS) method is a testing method that establishes the similarity relationship between the indoor test environment and the on-site environment to evaluate the durability and predict service life of the proposed or under-constructed concrete structure. Based on the METS theory, a similarity ratio of chloride ion concentration and diffusion coefficient between the indoor accelerated environment and the on-site natural environment was established. Then the relative information entropy was introduced into the Multi-Environmental Time Similarity based on Relative Information (RI-METS) theory to consider the time variability of the diffusion coefficient and the surface chloride ion mass fraction. …

Durability Assessment Of Repairing Vertical Cracks In Concrete Using Microbially Induced Calcium Carbonate Precipitation Technique, Chunhua Lu

International Conference on Durability of Concrete Structures

No abstract provided.