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Full-Text Articles in Engineering

Data Driven Trade-Off Analysis For Cybersecurity, Goskel Kucukkaya, Murat Ozer, Murat Balci, Emrah Ugurlu Jan 2024

Data Driven Trade-Off Analysis For Cybersecurity, Goskel Kucukkaya, Murat Ozer, Murat Balci, Emrah Ugurlu

Engineering Management & Systems Engineering Faculty Publications

Trade-off analysis, a specialization of systems engineering, addresses design criteria like security, cost, performance, and compliance. Monte Carlo simulations are commonly employed to generate impact scenarios for trade-off analysis combined with solution alternatives that accommodate industry-specific considerations and uncertainties. In the cyber domain, this paper proposes a methodology for data-driven trade-off analysis in cybersecurity, leveraging industry reports as primary data sources using confidentiality, integrity, and availability as trade-off analysis objectives. Distribution functions are derived to manage and model uncertainties for various industries. The approach given in this study aims to facilitate informed choices and to enhance cybersecurity decision making and …


Engineering Management And Industrial Engineering Industry And Educational Workforce Development Strategy, Robert J. Gies, Resit Unal, Charles B. Keating Jan 2024

Engineering Management And Industrial Engineering Industry And Educational Workforce Development Strategy, Robert J. Gies, Resit Unal, Charles B. Keating

Engineering Management & Systems Engineering Faculty Publications

This paper provides an overview of the development and resulting product of a collaborative industry-academia engineering management and industrial engineering workforce development strategy. In the spring of 2017, Old Dominion University's (ODU) Engineering Management and Systems Engineering Department (EMSE) approached Newport News Shipbuilding (NNS) with a concept to develop an educational initiative to support the preparation and development of the future workforce. The concept came to fruition over the next two years as a certification program in Engineering Systems and Industrial Engineering for NNS working professionals. This paper examines the primary aspects of the development of the certification program. Emphasis …


System Of Systems Engineering: A Literature Review And Research Frontiers, Charles B. Keating, Polinpapilinho F. Katina, James C. Pyne Jan 2024

System Of Systems Engineering: A Literature Review And Research Frontiers, Charles B. Keating, Polinpapilinho F. Katina, James C. Pyne

Engineering Management & Systems Engineering Faculty Publications

System of Systems Engineering (SoSE) has existed and been developing for well over 2 decades. The time is appropriate to take a reflective look at the past and examine the future evolution of this nascent field. To address this challenge, this paper is focused on two primary objectives. First, a literature review of the SoSE field is conducted. This literature review (1) organizes the SoSE body of knowledge and provides a synthesis of major crosscutting themes, and (2) provides a scholarly critique and identifies gaps in the current state of the SoSE field. The second objective is focused on providing …


Navigating The Complexities Of Engineering Management: Insights Into Metrics, Measurements, And Pitfalls, Charles Daniels Jan 2024

Navigating The Complexities Of Engineering Management: Insights Into Metrics, Measurements, And Pitfalls, Charles Daniels

Engineering Management & Systems Engineering Faculty Publications

In the realm of Engineering Management, the reliance on metrics and measurements stands as a cornerstone for effective decision-making processes. These quantitative tools offer insights into performance dynamics and facilitate informed strategic choices. However, the uncritical application of metrics devoid of profound domain expertise presents significant challenges. This abstract explores the pitfalls inherent in utilizing metrics and measurements within Engineering Management without comprehensive understanding, emphasizing the potential consequences and proposing strategies for navigating this complex terrain.


Educating For Shalom In Engineering, Julie Wildschut Jan 2024

Educating For Shalom In Engineering, Julie Wildschut

University Faculty Publications and Creative Works

Created in the image of God, humans have a unique purpose within creation. We are given the task of worshipping God (Isa 43:21), sharing the gospel of Jesus Christ (Mat 28:18-20), discovering and developing the potentials of creation (Gen 2:15), struggling and praying for shalom (Isa 1:17), and celebrating instances of God’s coming kingdom (Isa 9:1-7, Col 1:19-20). As Christian engineering educators, we have the additional task of preparing students to become capable engineers and to use those skills in response to God’s call in their lives. We have the blessing of not only teaching the technical aspects of engineering, …


Tailored Micromagnet Sorting Gate For Simultaneous Multiple Cell Screening In Portable Magnetophoretic Cell-On-Chip Platforms, Jonghwan Yoon, Yumin Kang, Hyeonseol Kim, Abbas Ali, Keonmok Kim, Sri Ramulu Torati, Mi-Young Im, Changyeop Jeon, Byeonghwa Lim, Cheolgi Kim Jan 2024

Tailored Micromagnet Sorting Gate For Simultaneous Multiple Cell Screening In Portable Magnetophoretic Cell-On-Chip Platforms, Jonghwan Yoon, Yumin Kang, Hyeonseol Kim, Abbas Ali, Keonmok Kim, Sri Ramulu Torati, Mi-Young Im, Changyeop Jeon, Byeonghwa Lim, Cheolgi Kim

Center for Bioelectronics Publications

Conventional magnetophoresis techniques for manipulating biocarriers and cells predominantly rely on large-scale electromagnetic systems, which is a major obstacle to the development of portable and miniaturized cell-on-chip platforms. Herein, a novel magnetic engineering approach by tailoring a nanoscale notch on a disk micromagnet using two-step optical and thermal lithography is developed. Versatile manipulations are demonstrated, such as separation and trapping, of carriers and cells by mediating changes in the magnetic domain structure and discontinuous movement of magnetic energy wells around the circumferential edge of the micromagnet caused by a locally fabricated nano-notch in a low magnetic field system. The motion …


Recovery Of Ionic Liquid From The Model Solution Mixture Mimicking The Catalytically Hydrolyzed Cellulose Product Utilizing Amberlyst Ion-Exchange Resin, Chhabilal Regmi, Chidambaram Thamariselvan, Zhexi Zhu, Xianghong Qian, S. Ranil Wickramasinghe Jan 2024

Recovery Of Ionic Liquid From The Model Solution Mixture Mimicking The Catalytically Hydrolyzed Cellulose Product Utilizing Amberlyst Ion-Exchange Resin, Chhabilal Regmi, Chidambaram Thamariselvan, Zhexi Zhu, Xianghong Qian, S. Ranil Wickramasinghe

Chemical Engineering Faculty Publications and Presentations

The hydrolysis of cellulose using ionic liquid (IL) has been extensively studied but there is limited understanding of the removal of IL from the biomass hydrolysate. Finding a suitable method for the recovery and reuse of IL is one of the biggest challenges before its large-scale application. Selecting an appropriate combined recovery process is very important. This study proposed a facile ion-exchange combined method for the recovery of IL from the modeled cellulose hydrolysate mixture containing sugars as well as γ-valerolactone (GVL) via an adsorption–desorption mechanism using sulfonic acid cation-exchange (Amberlyst 15 (H)) resin. The results showed that the resin …


2023-2024 Annual Security And Fire Report – Sayre Campus, Southwestern Oklahoma State University Jan 2024

2023-2024 Annual Security And Fire Report – Sayre Campus, Southwestern Oklahoma State University

ANNUAL SECURITY & FIRE REPORTS

This is the 2023-2024 Annual Security and Fire Report of the Sayre Campus by Southwestern Oklahoma State University.


2023-2024 Annual Security And Fire Report – Weatherford Campus, Southwestern Oklahoma State University Jan 2024

2023-2024 Annual Security And Fire Report – Weatherford Campus, Southwestern Oklahoma State University

ANNUAL SECURITY & FIRE REPORTS

This is the 2023-2024 Annual Security and Fire Report of the Weatherford Campus by Southwestern Oklahoma State University.


A Practical Framework For Component-Level Structural Health Monitoring Of The Gerald Desmond Bridge, Mehran Rahmani, Vesna Terzic, Andrea Calabrese, Brittany Cambell Jan 2024

A Practical Framework For Component-Level Structural Health Monitoring Of The Gerald Desmond Bridge, Mehran Rahmani, Vesna Terzic, Andrea Calabrese, Brittany Cambell

Mineta Transportation Institute

Bridges serve as critical transportation infrastructure, but traditional maintenance inspection to ensure their safety is time-consuming, costly, and labor-intensive, especially for larger and more complex structures. This study presents a practical framework for the instrumentation, data acquisition, and remote condition assessment of the Gerald Desmond Bridge, California’s largest cable-stayed bridge. The framework aims to establish a foundation for real-time or near real-time remote health monitoring of the bridge’s critical elements. The study highlights the advantages of remote monitoring in terms of efficiency, cost-effectiveness, and early detection of damage.


Experimental Evaluation Of Thermal Adaptation And Transient Thermal Comfort In A Tropical Mixed-Mode Ventilation Context, Yue Lei, Duygu Zeynep Tekler, Sicheng Zhan, Clayton Miller, Adrian Chong Jan 2024

Experimental Evaluation Of Thermal Adaptation And Transient Thermal Comfort In A Tropical Mixed-Mode Ventilation Context, Yue Lei, Duygu Zeynep Tekler, Sicheng Zhan, Clayton Miller, Adrian Chong

Research Collection College of Integrative Studies

Mixed-mode ventilation offers a promising solution for achieving comfortable indoor environments in an energy-efficient manner. However, in the tropics, characterized by a year-round hot and humid climate, opportunities for natural ventilation (NV) are typically limited to specific hours, necessitating operational mode switches on an intraday basis. Much of the thermal comfort research on mixed-mode ventilation relies either on cross-sectional data collected from different subjects or longitudinal data spanning a few seasons. This raises an open question: Can occupants thermally adapt when switching between NV and air-conditioning (AC) modes within a single day? To address the gap, our experimental study engaged …


Filling Time-Series Gaps Using Image Techniques: Multidimensional Context Autoencoder Approach For Building Energy Data Imputation, Chun Fu, Matias Quintana, Zoltan Nagy, Clayton Miller Jan 2024

Filling Time-Series Gaps Using Image Techniques: Multidimensional Context Autoencoder Approach For Building Energy Data Imputation, Chun Fu, Matias Quintana, Zoltan Nagy, Clayton Miller

Research Collection College of Integrative Studies

Building energy prediction and management has become increasingly important in recent decades, driven by the growth of Internet of Things (IoT) devices and the availability of more energy data. However, energy data is often collected from multiple sources and can be incomplete or inconsistent, which can hinder accurate predictions and management of energy systems and limit the usefulness of the data for decision-making and research. To address this issue, past studies have focused on imputing missing gaps in energy data, including random and continuous gaps. One of the main challenges in this area is the lack of validation on a …


Ifn-𝜸 And Il-10 Immunosensor With Vertically Aligned Carbon Nanotube Interdigitated Electrodes Toward Pen-Side Cattle Paratuberculosis Monitoring, Shaowei Ding, Benjamin J. Brownlee, Kshama Parate, Cicero C. Pola, Bolin Chen, Jesse M. Hostetter, Douglas Jones, John Jackman, Brian D. Iverson, Jonathan C. Claussen Jan 2024

Ifn-𝜸 And Il-10 Immunosensor With Vertically Aligned Carbon Nanotube Interdigitated Electrodes Toward Pen-Side Cattle Paratuberculosis Monitoring, Shaowei Ding, Benjamin J. Brownlee, Kshama Parate, Cicero C. Pola, Bolin Chen, Jesse M. Hostetter, Douglas Jones, John Jackman, Brian D. Iverson, Jonathan C. Claussen

Faculty Publications

Highly sensitive vertically aligned carbon nanotube arrays (VANTAs) interdigitated electrode (IDE) arrays are developed for electrochemical biosensing of two cytokines (i.e., interleukin-10 (IL-10) and interferon-gamma (IFN-𝜸)) that are useful for early detection Johne’s disease (Bovine Paratuberculosis) in cattle. The high aspect ratio VANTA-IDEs (50–60 μm in height) are grown through a chemical vapor deposition process from an iron (Fe) catalyst that is lithographically patterned on a silicon wafer with equal finger width and inter-finger spacing of 25 μm. After functionalization with distinct antibodies the VANTA-IDEs are capable of selective detection of both IL-10 and IFN-𝜸 within an actual biological matrix …


Latent Space Dynamics Learning For Stiff Collisional-Radiative Models, Xuping Xie, Qi Tang, Xianzhu Tang Jan 2024

Latent Space Dynamics Learning For Stiff Collisional-Radiative Models, Xuping Xie, Qi Tang, Xianzhu Tang

Mathematics & Statistics Faculty Publications

In this work, we propose a data-driven method to discover the latent space and learn the corresponding latent dynamics for a collisional-radiative (CR) model in radiative plasma simulations. The CR model, consisting of high-dimensional stiff ordinary differential equations, must be solved at each grid point in the configuration space, leading to significant computational costs in plasma simulations. Our method employs a physics-assisted autoencoder to extract a low-dimensional latent representation of the original CR system. A flow map neural network is then used to learn the latent dynamics. Once trained, the reduced surrogate model predicts the entire latent dynamics given only …


Effect Of Water Vapor Desorption On The Performance Of Gallium Nitride Field Emitter Array, Ranajoy Bhattacharya, Pao-Chuan Shih, Tomás Palacios, Jim Browning Jan 2024

Effect Of Water Vapor Desorption On The Performance Of Gallium Nitride Field Emitter Array, Ranajoy Bhattacharya, Pao-Chuan Shih, Tomás Palacios, Jim Browning

Electrical and Computer Engineering Faculty Publications and Presentations

We are exploring the potential of gallium nitride (GaN) field emitter arrays in vacuum channel transistors. This study investigated the impact of ultraviolet (UV) light on the emission properties of large arrays of GaN field emitters. Arrays of 150 × 150 emitters were analyzed before and after UV exposure. With a constant collector voltage of 200 V DC, gate voltage sweeps from 0 to 60 V were applied. The initial I–V measurements showed a rapid increase in emission current, indicating a conditioning effect, settling at a stable value of 1.25 μA after three to five sweeps. Remarkably, exposure to …


Generation Of Micro-Fracture Clouds In Rocks: Mechanisms And Applications, U. Mutlu, G. Boitnott, A. Lisjak, O. Mahabadi, Taghi Sherizadeh, D. Guner, S. Nowak, A. Ghassemi Jan 2024

Generation Of Micro-Fracture Clouds In Rocks: Mechanisms And Applications, U. Mutlu, G. Boitnott, A. Lisjak, O. Mahabadi, Taghi Sherizadeh, D. Guner, S. Nowak, A. Ghassemi

Mining Engineering Faculty Research & Creative Works

Volume increasing or decreasing processes in rocks can lead to inter or intragranular fractures in subsurface formations. The volume change can be caused by chemical reactions involving fluid, reactive transport, and coupling with the mechanical deformation of the grains. Depending on stress, material properties and coupled thermo-hydro-mechanical-chemical (THMC) conditions, grain scale fractures may propagate and coalesce, forming a cloud of well-connected fracture networks. The mechanisms responsible for propagation, coalescence and inhibition of cloud fractures are not well known. In this study, we review coupled micro-fracture network generation mechanisms as published in the literature and observed in field, experiments, and models. …


Sustainable Additive Manufacturing Of Polysulfone Membranes For Liquid Separations, Brian Leonard, Harrison Loh, David Lu, Ebuka A. Ogbuoji, Isabel Escobar, Konstantinos Sierros, Oishi Sanyal Jan 2024

Sustainable Additive Manufacturing Of Polysulfone Membranes For Liquid Separations, Brian Leonard, Harrison Loh, David Lu, Ebuka A. Ogbuoji, Isabel Escobar, Konstantinos Sierros, Oishi Sanyal

UK CARES Faculty Publications

Membranes serve as important components for modern manufacturing and purification processes but are conventionally associated with excessive solvent usage. Here, for the first time, a procedure for fabricating large area polysulfone membranes is demonstrated via the combination of direct ink writing (DIW) with non-solvent induced phase inversion (NIPS). The superior control and precision of this process allows for complete utilization of the polymer dope solution during membrane fabrication, thus enabling a significant reduction in material usage. Compared to doctor blade fabrication, a 63% reduction in dope solution volume was achieved using the DIW technique for fabricating similarly sized membranes. Cross …


Drivers’ Education Through Elearning And Exposure: An Opportunity To Increase Acceptance Of Connected And Automated Vehicles, Sarah El-Dabaja, Bhaven Naik, Bernard Ndeogo Issifu, Deborah S. Mcavoy, Deogratias Eustace Jan 2024

Drivers’ Education Through Elearning And Exposure: An Opportunity To Increase Acceptance Of Connected And Automated Vehicles, Sarah El-Dabaja, Bhaven Naik, Bernard Ndeogo Issifu, Deborah S. Mcavoy, Deogratias Eustace

Kentucky Transportation Center Presentations

No abstract provided.


Analysis Of Potential Safety Benefits Resulting From Different Automation Levels And Penetration Rates Of Automated Vehicles: A Case Study In The Netherlands, Dimitra Michalaka, Amna Chaudhry, Eleonora Papadimitriou, Joshua Wetmore Jan 2024

Analysis Of Potential Safety Benefits Resulting From Different Automation Levels And Penetration Rates Of Automated Vehicles: A Case Study In The Netherlands, Dimitra Michalaka, Amna Chaudhry, Eleonora Papadimitriou, Joshua Wetmore

Kentucky Transportation Center Presentations

No abstract provided.


Discrepancies In Av Work Zone Mapping: Analyzing Design Vs. As-Built Coordinates And Their Impact On Safety, Vaishnavi Wagh, Sean Brennan Jan 2024

Discrepancies In Av Work Zone Mapping: Analyzing Design Vs. As-Built Coordinates And Their Impact On Safety, Vaishnavi Wagh, Sean Brennan

Kentucky Transportation Center Presentations

No abstract provided.


Virtual Reality Simulation Of Pedestrian Crossings At Channelized Right-Turn Lanes In Urban Unsignalized Intersections, Alberto Figueroa-Medina, Didier Valdés-Díaz, Andrés Chamorro-Parejo, Natacha Cardona-Rodríguez Jan 2024

Virtual Reality Simulation Of Pedestrian Crossings At Channelized Right-Turn Lanes In Urban Unsignalized Intersections, Alberto Figueroa-Medina, Didier Valdés-Díaz, Andrés Chamorro-Parejo, Natacha Cardona-Rodríguez

Kentucky Transportation Center Presentations

No abstract provided.


Proactive Assessment Of The Crash Potential Of Signalized Intersection, Vedant Bhamare, Ishant Bonde, Suvin P. Venthuruthiyil Jan 2024

Proactive Assessment Of The Crash Potential Of Signalized Intersection, Vedant Bhamare, Ishant Bonde, Suvin P. Venthuruthiyil

Kentucky Transportation Center Presentations

No abstract provided.


Unveiling Safety Inequity: A Location-Based Crash Prediction Approach, Olin Green, Davis Chacon-Hurtado, Alexandra Paxton, John N. Ivan, Kerry L. Marsh, P. Adrian Frazier Jan 2024

Unveiling Safety Inequity: A Location-Based Crash Prediction Approach, Olin Green, Davis Chacon-Hurtado, Alexandra Paxton, John N. Ivan, Kerry L. Marsh, P. Adrian Frazier

Kentucky Transportation Center Presentations

No abstract provided.


Facilitating The Conversation: Fatigue Countermeasure Acceptance For Autonomous Shuttle Operations, Ashleigh Filtness, Rachel Talbot, Anna Sjörs Dahlman, Christer Ahlstrom, Anna Anund Jan 2024

Facilitating The Conversation: Fatigue Countermeasure Acceptance For Autonomous Shuttle Operations, Ashleigh Filtness, Rachel Talbot, Anna Sjörs Dahlman, Christer Ahlstrom, Anna Anund

Kentucky Transportation Center Presentations

No abstract provided.


An Integrated Field Testing And Numerical Modeling Of Sole Geothermal-Based Pavements: A Promising Sustainable Solution For Thermal Crack Mitigation And Deicing, Amin Mohammadzadeh, Omid Ghasemi-Fare, Zhihui Sun Jan 2024

An Integrated Field Testing And Numerical Modeling Of Sole Geothermal-Based Pavements: A Promising Sustainable Solution For Thermal Crack Mitigation And Deicing, Amin Mohammadzadeh, Omid Ghasemi-Fare, Zhihui Sun

Kentucky Transportation Center Presentations

No abstract provided.


Impact Of Retroreflective Backplates And Flashing Yellow Arrows On Distraction-Related Crashes In Kentucky, Arunabha Banerjee, Tyaha Woodard, Bharat Kumar Pathivada, Dylan Justice, Kirolos Haleem Jan 2024

Impact Of Retroreflective Backplates And Flashing Yellow Arrows On Distraction-Related Crashes In Kentucky, Arunabha Banerjee, Tyaha Woodard, Bharat Kumar Pathivada, Dylan Justice, Kirolos Haleem

Kentucky Transportation Center Presentations

No abstract provided.


Exploiting Explainable Machine Learning Models To Reveal Critical Factors In Fatal Crashes Across Pre-Covid, Covid, And Post-Covid Periods, Saumik Sakib Bin Masud, Seyedeh Mahgam Tabatabaei, Alexandra Kondyli Jan 2024

Exploiting Explainable Machine Learning Models To Reveal Critical Factors In Fatal Crashes Across Pre-Covid, Covid, And Post-Covid Periods, Saumik Sakib Bin Masud, Seyedeh Mahgam Tabatabaei, Alexandra Kondyli

Kentucky Transportation Center Presentations

No abstract provided.


Driver Perception Of Fluorescent Yellow Green Signage, Busisiwe Marole, Keolebogile Bosilong, Tshegofatso Mongae, Namatirai Cheure, Karien Venter Jan 2024

Driver Perception Of Fluorescent Yellow Green Signage, Busisiwe Marole, Keolebogile Bosilong, Tshegofatso Mongae, Namatirai Cheure, Karien Venter

Kentucky Transportation Center Presentations

No abstract provided.


Driving Simulation For Driving Education: Can Mixed Reality Do It?, Helen Loeb, Chase Leibowitz, Ronit Tehrani, Jaime Hernandez Jan 2024

Driving Simulation For Driving Education: Can Mixed Reality Do It?, Helen Loeb, Chase Leibowitz, Ronit Tehrani, Jaime Hernandez

Kentucky Transportation Center Presentations

No abstract provided.


Unveiling Crash Causation Through Data-Driven Strategies For Ohio Work Zone Safety, Isaac Baah, Mohamed M. Ahmed Jan 2024

Unveiling Crash Causation Through Data-Driven Strategies For Ohio Work Zone Safety, Isaac Baah, Mohamed M. Ahmed

Kentucky Transportation Center Presentations

No abstract provided.