Engineering Commons^™

Final Report - An Interactive System For Training And Assisting Bridge Inspectors In Inspection Video Data Analytics, Genda Chen, Ruwen Qin, Mohammad Hossein Afsharmovahed, Kevin Lai, Ritesh Sharma

Project WD-4

This project aims to develop an interactive, web-based system to assist bridge inspectors in machine learning and video analytics for a rapid condition state assessment of bridge elements in accordance with the 2019 Manual for Bridge Element Inspection. Referred to BridgeNet, the system includes region-based convolutional neural network (RCNN) models for bridge element and defect segmentation and an inspection video analytic tool that is integrated into a unified graphical user interface (GUI). It provides users with an image-based testbed of modulated RCNN models. The BridgeNet has evolved in four phases: (1) backend and frontend framework setups, (2) Mask-RCNN-based bridge segmentation, …

Final Report - Robot-Assisted Underwater Acoustic Imaging For Bridge Scour Inspection, Genda Chen, Peter Ogunjinmi, Son Nguyen

Project AS-8

This report details the development and testing of an innovative robotic system for underwater mapping and bridge scour inspection, integrating a 3D sonar with a modified remotely operated vehicle (ROV). The system addresses limitations in traditional scour monitoring methods, such as safety concerns and poor visibility after flooding. The research approach included laboratory experiments, pool testing, and field trials at two bridge sites in Missouri, with procedures developed for both water surface and underwater deployments. The system effectively mapped underwater structures and scour conditions, especially in hard-to-reach areas, revealing critical scouring, exposed pier footings and debris accumulation. The water surface …

Final Report - Bridge Inspection Robot Deployment Systems (Birds), Genda Chen, Son Nguyen, Alec Reven, Bo Shang

Project AS-4

This study aims to develop and evaluate Bridge Inspection Robot Deployment Systems (BIRDS) that support automated bridge inspection. BIRDS include uncrewed aerial vehicles (UAVs), structural crawlers, and/or their combination. A particular type of the BIRDS, which is a hybrid flying and traversing system called BridgeBot, is designed to aid in the inspection of steel and concrete girder bridges. BridgeBot has evolved in four prototypes (I-IV) for improved structural, mechanical, electronic, and control systems over the past five years. The first two prototypes built in Phases I and II were tested in laboratory to understand the feasibility of hybrid flying and …

Final Report - Probability Of Detection In Corrosion Monitoring With Fe-C Coated Lpfg Sensors, Genda Chen, Ying Zhou, Pengfei Ma

Project SN-8

This project aimed to develop and evaluate two statistical methods for determining the probability of detection (POD) in corrosion monitoring using Fe–C coated long-period fiber grating (LPFG) sensors. These methods, referred to as the Size-of-Damage-at-Detection (SODAD) method and the Random Parameter Model (RPM), addressed limitations in traditional POD models by considering the time dependency inherent in sensor data. The goal was to assess steel mass loss at 90% detection probability and establish the largest undetectable mass loss threshold at a 95% lower confidence bound. Both methods were assessed for computational efficiency, sensitivity to distribution assumptions, and robustness under varying model …

Final Report - Hyperspectral Imaging And Analysis For Steel Paint Condition Assessment, Hongyan Ma, Genda Chen, Pengfei Ma

Project SN-9

This project aimed to understand the durability of multiple coating settings that had been widely used in highway bridges. Coatings can prevent their substrate from being contacted by aggressive particles and thus corrosion to preserve structural components. However, the wide selection of coatings for steel girders or truss can greatly impact the serviceability of bridges. This project studied four types of top-coat materials (epoxy, Alkyd, acrylic, and polyurethane) and two types of under-coat materials (epoxy and acyclic). The coatings were configured as two-layer and three-layer systems to evaluate their difference in durability. The degradation process of the coatings was monitored …

The Location Of Cationic Substitutions In Carbonated Biomimetic Apatites Significantly Affects Crystal Nanomechanics, Stephanie Wong, Abigail Eaton, Cristina Krywka, Arun Nair, Alex Deymier

Mechanical Engineering Faculty Publications and Presentations

Bone and teeth are comprised of carbonate-substituted apatites with cationic substitutions, like sodium and potassium. Cations substitute for calcium in the apatite lattice but it is unclear whether they substitute for Ca(1) or Ca(2). Additionally, although we know that anionic substitutions affect the mineral mechanics, it is unclear how cationic substitutions affect mineral stiffness. Here, a combined experimental and theoretical approach using in situ fluid-mediated hydrostatic loading with synchrotron Wide Angle X-ray Scattering (WAXS) and Density Functional Theory (DFT) is used to elucidate the role of CO₃²⁻ and Na⁺ or K⁺ co-substitutions on the atomic structure …

Self-Oxidation Of The Atmospheres Of Rocky Planets With Implications For The Origin Of Life, Anders Johansen, Eloi Camprubi, Elishevah Van Kooten, H. Jens Hoeijmakers

School of Integrative Biological & Chemical Sciences Faculty Publications

Rocky planets may acquire a primordial atmosphere by the outgassing of volatiles from their magma ocean. The distribution of O between H2O, CO, and CO2 in chemical equilibrium subsequently changes significantly with decreasing temperature. We consider here two chemical models: one where CH4 and NH3 are assumed to be irrevocably destroyed by photolysis and second where these molecules persist. In the first case, we show that CO cannot coexist with H2O, since CO oxidizes at low temperatures to form CO2 and H2. In both cases, H escapes from the thermosphere within a few 10 million years by absorption of stellar …

Unveiling The Risks Of Speeding Behavior By Investigating The Dynamics Of Driver Injury Severity Through Advanced Analytics., Mouyid Islam, Parisa Hosseini, Anahita Kakhani, Mohammad Jalayer, Deep Patel

Henry M. Rowan College of Engineering Departmental Research

Single-vehicle crashes, particularly those caused by speeding, result in a disproportionately high number of fatalities and serious injuries compared to other types of crashes involving passenger vehicles. This study aims to identify factors that contribute to driver injury severity in single-vehicle crashes using machine learning models and advanced econometric models, namely mixed logit with heterogeneity in means and variances. National Crash data from the Crash Report Sampling System (CRSS) managed by the National Highway Traffic Safety Administration (NHTSA) between 2016 and 2018 were utilized for this study. XGBoost and Random Forest models were employed to identify the most influential variables …

Nanopore Signal Deviations From Pseudouridine Modifications In Rna Are Sequence-Specific: Quantification Requires Dedicated Synthetic Controls, Amr Makhamreh, Sepideh Tavakoli, Ali Fallahi, Xinqi Kang, Howard Gamper, Mohammad Nabizadehmashhadtoroghi, Miten Jain, Ya-Ming Hou, Sara H Rouhanifard, Meni Wanunu

Department of Biochemistry and Molecular Biology Faculty Papers

Chemical modifications to mRNA respond dynamically to environmental cues and are important modulators of gene expression. Nanopore direct RNA sequencing has been applied for assessing the presence of pseudouridine (ψ) modifications through basecalling errors and signal analysis. These approaches strongly depend on the sequence context around the modification, and the occupancies derived from these measurements are not quantitative. In this work, we combine direct RNA sequencing of synthetic RNAs bearing site-specific modifications and supervised machine learning models (ModQuant) to achieve near-analytical, site-specific ψ quantification. Our models demonstrate that the ionic current signal features important for accurate ψ classification are sequence …

Electronic Communication Between Co And Ru Sites Decorated On Nitrogen-Doped Carbon Nanotubes Boost The Alkaline Hydrogen Evolution Reaction, Meng-Ting Gao, Ying Wei, Xue-Meng Hu, Wenj-Jie Zhu, Qing-Qing Liu, Jin-Yuan Qiang, Wan-Wan Liu, Ying Wang, Xu Li, Jian-Feng Huang, Yong-Qiang Feng

Journal of Electrochemistry

Designing highly efficient Pt-free electrocatalysts with low overpotential for an alkaline hydrogen evolution reaction (HER) remains a significant challenge. Here, a novel and efficient cobalt (Co), ruthenium (Ru) bimetallic electrocatalyst composed of CoRu nanoalloy decorated on the N-doped carbon nanotubes (CoRu@N-CNTs), was prepared by reacting fullerenol with melamine via hydrothermal treatment and followed by pyrolysis. Benefiting from the electronic communication between Co and Ru sites, the as-obtained CoRu@N-CNTs catalyst exhibited superior electrocatalytic HER activity. To deliver a current density of 10 mA·cm^–2, it required an overpotential of merely 19 mV along with a Tafel slope of 26.19 mV·dec …

Zhong-Qun Tian, Academician And Honorary Member Of Electrochemistry Committee Chinese Chemical Society, Achieved "Raman Lifetime Award", Editorial Office Of J.Electrochem.

Journal of Electrochemistry

No abstract provided.

Optimization Of Channel Structure Of Alkaline Water Electrolyzer By Using An Expanded Mesh As A Bipolar Plate, Hai-Yan Xiong, Zhen-Xiao Zhu, Xin Gao, Chen-Ming Fan, Hui-Bao Luan, Bing Li

Journal of Electrochemistry

Alkaline water electrolysis (AWE) is the most mature technology for hydrogen production by water electrolysis. Alkaline water electrolyzer consists of multiple electrolysis cells, and a single cell consists of a diaphragm, electrodes, bipolar plates and end plates, etc. The existing industrial bipolar plate channel is concave-convex structure, which is manufactured by complicated and high-cost mold punching. This structure still results in uneven electrolyte flow and low current density in the electrolytic cell, further increasing in energy consumption and cost of AWE. Thereby, in this article, the electrochemical and flow model is firstly constructed, based on the existing industrial concave and …

2024 Tianmulake Advanced Anode Materials Innovation Forum And Sixth National Conference Of Advanced Battery Failure Analysis And Testing Technology Concluded Successfully, Editorial Office Of J.Electrochem.

Journal of Electrochemistry

No abstract provided.

Aging Characteristics Of Lithium-Ion Battery Under Fast Charging Based On Electrochemical-Thermal-Mechanical Coupling Model, Dong-Xu Zuo, Pei-Chao Li

Journal of Electrochemistry

The aging characteristics of lithium-ion battery (LIB) under fast charging is investigated based on an electrochemical-thermal-mechanical (ETM) coupling model. Firstly, the ETM coupling model is established by COMSOL Multiphysics. Subsequently, a long cycle test was conducted to explore the aging characteristics of LIB. Specifically, the effects of charging (C) rate and cycle number on battery aging are analyzed in terms of nonuniform distribution of solid electrolyte interface (SEI), SEI formation, thermal stability and stress characteristics. The results indicate that the increases in C rate and cycling led to an increase in the degree of nonuniform distribution of SEI, and thus …

The Importance Of Humanities In A Career-Focused Educational Environment, Geoff Zylstra, Jill Belli, Candido Cabo, Sean Macdonald, Robin Michals, Ann Marie Sowder, Christopher B. Swift

Publications and Research

The humanities have the potential to enhance STEM curriculum in career-oriented professional degree programs. As part of a larger college-wide initiative to develop interdisciplinary curricula, the National Endowment for the Humanities (NEH) awarded a grant to New York City College of Technology to explore the relationship between the humanities and career-focused degree programs in STEM departments. This article describes the design and implementation of coursework that bridges the curricular divides between humanities disciplines and technical or career-focused disciplines by bringing the humanities to bear on science and technology-oriented courses. Specifically, the humanities served to improve technical skills for students in …

Chinese Chemical Society: First Young Scholars' Symposium On Electrosynthesis Held Successfully, Chinese Society Of Electrochemistry (Cse)

Journal of Electrochemistry

No abstract provided.

The Effectiveness Of Certain Biological Additives Considered By-Products Of The Food Industry In Baker’S Yeast Activation, Nataliya E. Kulikova, Antonina G. Chernobrovina, Natalia N. Roeva

CHEMISTRY AND CHEMICAL ENGINEERING

One of the ways to increase the efficiency of the activation process of baking yeast is the use of waste and by-products of the food industry as nutrient media. The goal of the study was to develop ways to activate yeast in a nutrient medium with dietary supplements: potato cell sap, whey and quince pomace powder. We demonstrated the effectiveness of the use of biological additives (potato cell juice, quince pomace powder, whey), which are waste or by-products of the food industry to activate yeast. We have established that incubation in a nutrient medium with dietary supplements has a beneficial …

Study Of Regularities Of Formation Of Hydroxyammonium Oligomers From Alkanolamine Of The Type Of Hexahydrosimtriazine And Epichlorohydrin, Nozima M. Ibragimova, Ravshan I. Adilov

CHEMISTRY AND CHEMICAL ENGINEERING

The aim of the work is to study the patterns of formation of hydroxylammonium oligomers based on hexahydrosymtriazine with epichlorohydrin. The paper studies the interaction patterns of the alkanolamine hexahydrosimtriazine type - N, N', N'-tris (β-oxyethyl) hexahydro-S-triazine (THOHST)with epichlorohydrin (ECH). The reaction between TOEGT and ECH occurs at a noticeable rate, already at 0 ^oC. An increase in the reaction duration leads to a symbate increase in the molecular weight values, the concentration of hydrolyzed chlorine, a decrease in the content of epoxy groups, and the concentration of hydroxyl groups do not change within the experimental error. An increase …

O-Xloratsetiltimol Sintezi Va Uni Kimyoviy Modifikatsiyalash, Azimjon U. Choriev, Anvar K. Abdushukurov, Ilyos U. Normurodov, Sarvinoz K. Mirzayeva

CHEMISTRY AND CHEMICAL ENGINEERING

The aim of the study is to develop a convenient method for the synthesis of O-chloroacetylthymol and to propose the mechanism of the O-chloroacetylation reaction. Thin-layer chromatography of chloroacetylation and nucleophilic substitution reaction products was studied and their composition was confirmed by reference substances. Nucleophilic exchange reactions of O-chloroacetylthymol with sodium oxalate, sodium tartrate, potassium rhodanides were studied. Favorable conditions for carrying out the nucleophilic exchange reaction were searched and 3 new substances unknown in the literature were synthesized. The structure of the synthesized substances was proved by IR and NMR spectra.

Study Of Crystallization Ability Of Glasses Synthesized In The Basalt-Quartz-Soda System, Eldor I. Ruzmatov, Mastura Kh. Aripova, Bahrom R. Ro'ziboyev

CHEMISTRY AND CHEMICAL ENGINEERING

The aim of the work is to study the crystallization capacity of glasses synthesized in the basalt-quartz-soda system. The crystallization capacity of glasses was studied by the method of mass crystallization in the range of 600 ^oC and 1050 ^oC. The stages of spontaneous crystallization were determined by the DTA method. The density, TCLE, refractive index, compressive strength and frost resistance were studied. The crystalline phases of crystallized glasses were determined by the X-ray phase method. The presence of diopside and anorthite was revealed.

Influence Of The Granulometric Composition Of Carbonate Rocks On Glass Formation Processes In Float Glass Technology, Sergey P. Grechuha, Yury G. Pavliukevich, Ludmila F. Pаpko, Olesya M. Mozhdzher, Aleksandr P. Kravchuk

CHEMISTRY AND CHEMICAL ENGINEERING

The aim of this work is to study the influence of the granulometric composition of dolomite and limestone of 0.1–1.0 mm, 1.0–1.6 mm, 1.6–2.5 mm fractions on the rate of glass formation processes in the synthesis of float glass. The dependence of the degree of decarbonization of dolomite and limestone on the dispersion of particles and the time of heat treatment has been established. According to the study of the influence of the granulometric composition of carbonate rocks on the melting characteristic of float glass, it can be concluded that it is possible to use the 1.0–1.6 mm fraction of …

Antibacterial Semi-Fritted Glazes Containing Iron (Iii) And Manganese (Iv) Oxides, Ivan A. Levitskiy, Mihail V. Dyadenko, Ekaterina E. Trusova

CHEMISTRY AND CHEMICAL ENGINEERING

The aim of this research work is production of colored antibacterial glaze coatings for ceramic products containing iron (III) and manganese (IV) oxides. The coatings are produced on the basis of multicalcium aluminoborosilicate frit, dolomite and iron or manganese oxides. The constant components in the raw mixture were feldspar, alumina, coal clay and kaolin. The coatings were obtained by finely grinding the components then applied to the dried semi-finished product and single fired at a temperature of 1200±5 °C for 60±2 minutes. The formation of the glaze layer, the decorative properties of coatings, and their physical and chemical and operational …

Synthesis Of Nanostructured Cerium-Doped Yttrium-Aluminum Garnets By Method Of Sol-Gel Burning In A Microwave Oven, Eygeniy N. Poddenezhny, Andrei A. Boiko, Ekaterina E. Trusova, Ekaterina R. Kravcova

CHEMISTRY AND CHEMICAL ENGINEERING

The aim of research is to study the new method of thermochemical synthesis of yttrium-aluminum garnet luminescent powder, cerium doped (Y₃Al₅O₁₂:Се³⁺, YAG:Ce) using the nitric acid salts of yttrium, aluminum and cerium, with the mixture of carbamide and hexamethylenetetramine used as fuel. Synthesis was performed in a microwave oven with the power of 800 W and frequency of 2450 MHz in a porcelain crucible closed with a perforated heat-resistant cover. The average size of coherent scattering region (CSR) of YAG:Ce particles (nominal diameter D) obtained in the crucible during the microwave heating …

2024 Kentucky Water Resources Annual Symposium, Kentucky Water Research Institute

Kentucky Water Resources Annual Symposium

The program and proceedings contains details of the 2024 Kentucky Water Resources Symposium, including presentations, award winners, and poster presentations.

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 G21AP10631-02 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 …

2024 Kentucky Water Resources Annual Symposium, Kentucky Water Research Institute

Kentucky Water Resources Annual Symposium

No abstract provided.

Multi-Functional Gelatin-Dithiolane Hydrogels For Tissue Engineering, Saad Asim, Cody Tuftee, Asma Talib Qureshi, Rachel Callaghan, Moira L. Geary, Mithun Santra, Vaibhav Pal, Ilayda Namli, Gary Hin Fai Yam, Ibrahim T. Ozbolat, Muhammad Rizwan

Michigan Tech Publications

Biomaterials that integrate multiple functionalities, mimic the extracellular matrix (ECM) microenvironment to support cellular growth, and adhere robustly to damaged tissues are highly needed to advance tissue engineering. Protein-based biomaterials are promising due to their inherent biocompatibility, biomimicry, biodegradation, and cell-supportive properties. Herein, by leveraging the unique ability of dithiolanes to generate on-demand in situ thiols, a new class of dithiolane-modified, protein-based biomaterial that combines unique, seemingly opposing functions for tissue engineering is developed. Dithiolane-modified gelatin, a model protein used herein, enabled photoinitiator-free photo-crosslinking to form multi-functional gelatin-dithiolane (GelDT) hydrogels, which displayed exceptional long-term stability in cell culture media ( …

Fatigue-Resistant Mechanoresponsive Color-Changing Hydrogels For Vision-Based Tactile Robots, Jiabin Liu, Wei Li, Yu She, Sean Blanchard, Shaoting Lin

School of Industrial Engineering Faculty Publications

Mechanoresponsive color-changing materials that can reversibly and resiliently change color in response to mechanical deformation are highly desirable for diverse modern technologies in optics, sensors, and robots; however, such materials are rarely achieved. Here, a fatigue-resistant mechanoresponsive color-changing hydrogel (FMCH) is reported that exhibits reversible, resilient, and predictable color changes under mechanical stress. At its undeformed state, the FMCH remains dark under a circular polariscope; upon uniaxial stretching of up to six times its initial length, it gradually shifts its color from black, to gray, yellow, and purple. Unlike traditional mechanoresponsive color-changing materials, FMCH maintains its performance across various strain …

A Novel Model Of Autologous Tooth Transplantation For The Study Of Nerve Recruitment, Teresa E. Fowler, Doan T. Bloomquist, Caroline Glessner, Poonam Patel, Jeffrey N. James, Kathryn Bollinger, Lynnette P. Mccluskey, Ryan F. Bloomquist

School of Dentistry Faculty Publications

Background: Limited treatment options exist for damaged nerves and despite impressive advances in tissue engineering, scientists and clinicians have yet to fully replicate nerve development and recruitment. Innervation is a critical feature for normal organ function. While most organs are innervated prior to birth, a rare example of postnatal nerve recruitment occurs in the natural development of secondary teeth during adolescence. Many animals undergo postnatal shedding of deciduous teeth with development and eruption of secondary teeth, a process requiring recruitment of nerve and vasculature to each tooth pulp for viability. Here, the investigators created a novel model for the study …

Ai-Enhanced Decision-Making For Course Modality Preferences In Higher Engineering Education During The Post-Covid-19 Era, Amirreza Mehrabi, Jason Morphew, Babak Nadjar Araabi, Negar Memarian, Hossein Memarian

School of Engineering Education Faculty Publications

The onset of the COVID-19 pandemic has compelled a swift transformation in higher-education methodologies, particularly in the domain of course modality. This study highlights the potential for artificial intelligence and machine learning to improve decision-making in advanced engineering education. We focus on the potential for large existing datasets to align institutional decisions with student and faculty preferences in the face of rapid changes in instructional approaches prompted by the COVID-19 pandemic. To ascertain the preferences of students and instructors regarding class modalities across various courses, we utilized the Cognitive Process-Embedded Systems and e-learning conceptual framework. This framework effectively delineates the …

Rotational Machine Fault Diagnosis Using Artificial Intelligence (Ai) Strategies For The Operational Challenges Under Variable Speed Condition: A Review, S. Sowmya, M. Saimurugan, Immanuel A. Edinbarough

Informatics and Engineering Systems Faculty Publications

Rotational machines in industries often encounter uncertainties during operation, are monitored and diagnosed through machine condition monitoring. Particularly when speed varies, Artificial Intelligence (AI) provides a great deal of support in recognizing machine faults efficiently. This paper reviews various articles that focused on fault identification in industrial rotating machines under varying speed condition using AI techniques. It investigates various machinery faults, experimental datasets and reputed institutions datasets, complex signals from faulty components and their processing method. Further, the involvement of intelligent based techniques in extracting and selecting suitable features to classify defects are comprehensively reviewed. In addition, as multi-signal fusion …