Engineering Commons^™

Comparative Evaluation Of Conventional And Sustainable Concrete Protective Coatings: Performance, Economic, And Environmental, Andro Ebrahim

Theses and Dissertations

Concrete structures are highly susceptible to deterioration from environmental, chemical, and mechanical factors, making protective coatings essential for ensuring durability and reducing maintenance demands. This study aims to compare and evaluate conventional and innovative coating systems for concrete protection across three dimensions—technical performance, environmental sustainability, and life cycle cost efficiency—and to assess whether coatings often regarded or marketed as sustainable genuinely achieve sustainability across these three pillars. Four representative coatings were selected for assessment: epoxy solvent-based, epoxy solvent-free, acrylic water-based, and cementitious. Technical performance was examined through laboratory testing, expert interviews, and multiple real project cases, providing a comprehensive understanding …

Green Roofs For Grey Water Treatment – Comparative Study Of Economic And Environmental Impacts, Shaden S. Attia

Theses and Dissertations

Cities are under more pressure than ever to use sustainable methods for managing water and other resources because of urbanization, climate change, and a lack of water. Standard greywater treatment systems (SGTSs) work well, but they use a lot of resources and don't provide a lot of ecosystem services. Greywater-treating green roofs (GTGRs) have emerged as a promising Nature-Based Solution (NBS), combining wastewater recycling with benefits like regulating temperature, reducing greenhouse gas (GHG) emissions, and reducing the urban heat island (UHI) effect. Even with this potential, there is still not enough real-world research on how GTGRs affect both the economy …

Expression Of Concern: The Innovative Technique For Obtaining The Solutions Of Jeffery Hamel Nano-Fluids Flow Problem, Haedir Abd Alrazak Namoos, Abeer Majeed Jasim

Iraqi Journal for Computer Science and Mathematics

EXPRESSION OF CONCERN FOR: H.A.A. Namoos and A.M. Jasim, ``The Innovative Technique for Obtaining the Solutions of Jeffery Hamel Nano-fluids Flow Problem,'' Iraqi Journal for Computer Science and Mathematics, vol. 6, no. 3, 2025, Article 31. DOI:https://doi.org/10.52866/2788-7421.1303.
Available at: https://ijcsm.researchcommons.org/ijcsm/vol6/iss3/31.

Reason for Expression of Concern:The Editors wish to alert readers to potential concerns regarding the reliability of the findings reported in “The Innovative Technique for Obtaining the Solutions of Je ery Hamel Nano-fluids Flow Problem (Manuscript 1303)”. The journal has initiated an additional editorial assessment of the article’s methodology, data provenance, and reported outcomes to …

Expression Of Concern: Software Engineering Approach To Enhancing Privacy Protection: Automated Face Blurring Using Deep Learning In Arab Social Media, Yasmin Makki Mohialden, Nadia Mahmood Hussien, Mostafa Abdulghafoor Mohammed

Iraqi Journal for Computer Science and Mathematics

EXPRESSION OF CONCERN FOR: Y. M. Mohialden, N. M. Hussien, and M. A. Mohammed, ``Software Engineering Approach to Enhancing Privacy Protection: Automated Face Blurring Using Deep Learning in Arab Social Media,'' Iraqi Journal for Computer Science and Mathematics, vol. 6, no. 3, 2025, Article 43. DOI: https://doi.org/10.52866/2788-7421.1317.
Available at: https://ijcsm.researchcommons.org/ijcsm/vol6/iss3/43.

Reason for Expression of Concern: The Editors wish to alert readers to potential concerns regarding the reliability of the findings reported in “Software Engineering Approach to Enhancing Privacy Protection: Automated Face Blurring Using Deep Learning in Arab Social Media (Manuscript 1317)”. The journal has initiated an additional …

Expression Of Concern: Quantum Machine And Deep Learning For Medical Image Classification: A Systematic Review Of Trends, Methodologies, And Future Directions, Eman A. Radhi, Mohammed Y. Kamil, Mazin Abed Mohammed

Iraqi Journal for Computer Science and Mathematics

EXPRESSION OF CONCERN FOR: E. A. Radhi, M. Y. Kamil, and M. A. Mohammed, ``Quantum Machine and Deep Learning for Medical Image Classification: A Systematic Review of Trends, Methodologies, and Future Directions,'' Iraqi Journal for Computer Science and Mathematics, vol. 6, no. 2, 2025, Article 9. DOI: https://doi.org/10.52866/2788-7421.1252.
Available at: https://ijcsm.researchcommons.org/ijcsm/vol6/iss2/9.

Reason for Expression of Concern: The Editors wish to alert readers to potential concerns regarding the reliability of the findings reported in “Quantum Machine and Deep Learning for Medical Image Classification: A Systematic Review of Trends, Methodologies, and Future Directions (Manuscript 1252)”. The journal has initiated …

Expression Of Concern: Ontology Features-Based Arabic Text Augmentation Using Word2vec, Enas Tariq Khudair, Onsa Lazzez, Mourad Zaied, Tarek M. Hamdani, Ahmed T. Sadiq, Habib Chabchoub, Adel M. Alimi

Iraqi Journal for Computer Science and Mathematics

EXPRESSION OF CONCERN FOR: E. T. Khudair, O. Lazzez, M. Zaied, T. M. Hamdani, A. T. Sadiq, H. Chabchoub, and A. M. Alimi, “Ontology Features-Based Arabic Text Augmentation Using Word2Vec,” Iraqi Journal for Computer Science and Mathematics, vol. 6, no. 3, 2025, Article 40. DOI: https://doi.org/10.52866/2788-7421. 1302 Available at: https://ijcsm.researchcommons.org/ijcsm/vol6/iss3/40

Editor's Note: The Expression of Concern (DOI: https://doi.org/10.52866/2788-7421.1386) regarding the Original Article (DOI: https://doi.org/10.52866/2788-7421.1302) has been resolved. The publication timeline is as follows: Original Article → Expression of Concern → Resolution.

Expression Of Concern: Leveraging Machine Learning For Accurate Prediction Of Nba Player Salaries, Ye Cheng, Yan Song, Mingqi Wang

Iraqi Journal for Computer Science and Mathematics

EXPRESSION OF CONCERN FOR: Y. Cheng, Y. Song, and M. Wang, ``Leveraging Machine Learning for Accurate Prediction of NBA Player Salaries,'' Iraqi Journal for Computer Science and Mathematics, vol. 6, no. 3, 2025, Article 1. DOI: https://doi.org/10.52866/2788-7421.1275
Available at: https://ijcsm.researchcommons.org/ijcsm/vol6/iss3/1

Reason for Expression of Concern: The Editors wish to alert readers to potential concerns regarding the reliability of the findings reported in “Leveraging Machine Learning for Accurate Prediction of NBA Player Salaries (Manuscript 1275)”. The journal has initiated an additional editorial assessment of the article’s methodology, data provenance, and reported outcomes to confirm their reliability and reproducibility. This notice …

Expression Of Concern: Improving Road Safety Through Multimodal Deep Learning For Driver Drowsiness Detection, Hadel A. Hussain, Mohammed A. Subhi, Ahmed S. Al Tmeme, Ahmed D. Radhi, Marwan Ali Albahar

Iraqi Journal for Computer Science and Mathematics

EXPRESSION OF CONCERN FOR: H. A. Hussain, M. A. Subhi, A. S. Al Tmeme, A. D. Radhi, and M. A. Albahar, ``Improving Road Safety Through Multimodal Deep Learning for Driver Drowsiness Detection,'' Iraqi Journal for Computer Science and Mathematics, vol. 6, no. 4, Article 12, 2025. DOI: https://doi.org/10.52866/2788-7421.1330.
Available at: https://ijcsm.researchcommons.org/ijcsm/vol6/iss4/12.

Reason for Expression of Concern: The Editors wish to alert readers to potential concerns regarding the reliability of the findings reported in “Improving Road Safety Through Multimodal Deep Learning for Driver Drowsiness Detection (Manuscript 1330)”. The journal has initiated an additional editorial assessment of the article’s …

Expression Of Concern: Improving Heart Attack Prediction Accuracy Performance Using Machine Learning And Deep Learning Algorithms, Iraqi Journal For Computer Science And Mathematics

Iraqi Journal for Computer Science and Mathematics

EXPRESSION OF CONCERN FOR: M. H. Al-Adhaileh, M. I. Ahmed Al-mashhadani, E. M. Alzahrani, and T. H. H. Aldhyani, ``Improving Heart Attack Prediction Accuracy Performance Using Machine Learning and Deep Learning Algorithms,'' Iraqi Journal for Computer Science and Mathematics, vol. 6, no. 2, 2025, Article~3. DOI:~https://doi.org/10.52866/2788-7421.1239.
Available at: https://ijcsm.researchcommons.org/ijcsm/vol6/iss2/3.

Reason for Expression of Concern: The Editors wish to alert readers to potential concerns regarding the reliability of the findings reported in “Improving Heart Attack Prediction Accuracy Performance Using Machine Learning and Deep Learning Algorithms (Manuscript 1239)”. The journal has initiated an additional editorial assessment of the …

Expression Of Concern: Improved Harmony Search Algorithm For Sdn Controller Placement, Yousra Abdul Alsahib S. Aldeen, Ahmed T. Sadiq, Abeer E. Abed, Omar F. Hussain, Syed Hamid Hussain Madni

Iraqi Journal for Computer Science and Mathematics

EXPRESSION OF CONCERN FOR: Y. A. A. S. Aldeen, A. T. Sadiq, A. E. Abed, O. F. Hussain, and S. H. H. Madni, ``Improved Harmony Search Algorithm for SDN Controller Placement,'' Iraqi Journal for Computer Science and Mathematics, vol. 6, no. 2, 2025, Article 12. DOI: https://doi.org/10.52866/2788-7421.1249.
Available at: https://ijcsm.researchcommons.org/ijcsm/vol6/iss2/12.

Reason for Expression of Concern: The Editors wish to alert readers to potential concerns regarding the reliability of the findings reported in “Exact Solutions of M-fractional Complex Ginzburg-Landau Equation via Two Analytical Methods (Manuscript 1267)”. Exact Solutions of M-fractional: : : The journal has initiated an additional …

Expression Of Concern: Exact Solutions Of M-Fractional Complex Ginzburg-Landau Equation Via Two Analytical, Nematollah Kadkhoda, Mojtaba Baymani, Maad M. Mijwil, Mostafa Abotaleb

Iraqi Journal for Computer Science and Mathematics

EXPRESSION OF CONCERN FOR: N. Kadkhoda, M. Baymani, M. M. Mijwil, and M. Abotaleb, ``Exact Solutions of M-fractional Complex Ginzburg-Landau Equation via Two Analytical Methods,'' Iraqi Journal for Computer Science and Mathematics, vol. 6, no. 3, 2025, Article 11. DOI: https://doi.org/10.52866/2788-7421.1267.
Available at: https://ijcsm.researchcommons.org/ijcsm/vol6/iss3/11.

Reason for Expression of Concern: The Editors wish to alert readers to potential concerns regarding the reliability of the findings reported in “Exact Solutions of M-fractional Complex Ginzburg-Landau Equation via Two Analytical Methods (Manuscript 1267)”. Exact Solutions of M-fractional: : : The journal has initiated an additional editorial assessment of the article’s methodology, …

Expression Of Concern: Artificial Intelligence In Education: Mathematics Teachers' Perspectives, Practices And Challenges, Mohammad A. Tashtoush, Yousef Wardat, Rommel Al Ali, Shoeb Saleh

Iraqi Journal for Computer Science and Mathematics

EXPRESSION OF CONCERN FOR: M. A. Tashtoush, Y. Wardat, R. A. Ali, and S. Saleh, ``Artificial Intelligence in Education: Mathematics Teachers' Perspectives, Practices and Challenges,'' Iraqi Journal for Computer Science and Mathematics, vol. 5, no. 1, 2024, Article 20. DOI: https://doi.org/10.52866/ijcsm.2024.05.01.004.
Available at: https://ijcsm.researchcommons.org/ijcsm/vol5/iss1/20.

Reason for Expression of Concern: The Editors wish to alert readers to potential concerns regarding the reliability of the findings reported in ``Artificial Intelligence in Education: Mathematics Teachers' Perspectives''. The journal has initiated an additional editorial assessment of the article's methodology, data provenance, and reported outcomes to confirm their reliability and reproducibility.
This …

Expression Of Concern: A Lightweight U-Net Model For Accurate Skin Lesion Segmentation, Fallah H. Najjar, Karrar A. Kadhim, Farhan Mohamed, Mohd Shafry Mohd Rahim, Asniyani Nur Haidar Abdullah

Iraqi Journal for Computer Science and Mathematics

EXPRESSION OF CONCERN FOR: F. H. Najjar, K. A. Kadhim, F. Mohamed, M. S. Mohd Rahim, and A. N. Haidar Abdullah, ``A Lightweight U-Net Model for Accurate Skin Lesion Segmentation,'' Iraqi Journal for Computer Science and Mathematics, vol. 6, no. 2, 2025, Article 1. DOI: https://doi.org/10.52866/2788-7421.1230.
Available at: https://ijcsm.researchcommons.org/ijcsm/vol6/iss2/1.

Reason for Expression of Concern: The Editors wish to alert readers to potential concerns regarding the reliability of the findings reported in ``A Lightweight U-Net Model for Accurate Skin Lesion Segmentation (Manuscript 1230)''. the journal has initiated an additional editorial assessment of the article's methodology, data provenance, and …

Characterizing Indoor Surface Voc Contamination After The 2025 Los Angeles Fires, Brett W. Stinson, Emily Lei, Elliott T. Gall

Mechanical and Materials Engineering Faculty Publications and Presentations

We quantify volatile organic compound (VOC) emissions from indoor surface swabs and portable air cleaner (PAC) filters collected in a home 30 days after the 2025 Los Angeles wildland-urban interface (WUI) fires. We calculate emissions for 17 fire-relevant compounds. Surface emissions exceeded those of clean controls, and emissions from a windowsill in a room without a PAC were ∼15× and ∼2× higher for benzene and toluene, respectively, than rates reported in the literature for comparable materials unaffected by smoke/soot. Particle filters installed in PACs at the start of the fire emitted aromatics at rates comparable to those reported in a …

Models Of Change: Communicating To Your Funder And Stakeholders How You Believe Your Project Will Succeed, Jean Mclaughlin, Thuy Vu, Noe Vargas Hernandez, Arturo A. Fuentes

Civil Engineering Faculty Publications

No abstract provided.

Dynamic Multi-Layered Hardware Obfuscation With Behavioral Drift Locking For Sat-Resistant Designs, Ahmed Yehia Salah Mohamed Emish

Theses and Dissertations

The globalization of the semiconductor supply chain has introduced critical vulnerabilities, including intellectual property (IP) piracy, reverse engineering, and hardware tampering. While traditional logic locking offers a baseline of defense, the emergence of powerful Boolean satisfiability (SAT) solvers has rendered many static obfuscation techniques ineffective. This work proposes a Dynamic Multi- Layered Hardware Obfuscation Framework that utilizes Behavioral Drift Locking (BDL) to provide a robust defense-in-depth against advanced adversarial models. The methodology integrates four synergistic layers: • Dynamic Key Management using a time-dependent rotation mechanism that updates keys every clock cycle to prevent static analysis. • Control Obfuscation through opcode …

A Proposed Vision To Activate Smart Urban Growth Concepts For The New Egyptian Cities, Nirman M. El-Sayed, Mamdouh A. Al-Minshawi

Mansoura Engineering Journal

Smart urban growth is the ideal solution to urban problems within the cities of the fourth generation in Egypt, and despite this, most of them depend on traditional urban thought without activating "Smart Urban Growth", which is known to maintain lands from deterioration and make societies suitable for living and providing the necessary services. The goal of research to set standards to activate smart urban growth as a thought that keeps pace with sustainable urban development and Egypt's 2030 vision, work to use the global smart cities approach and how they reach intelligence. While the research follows the "analytical" deductive …

The Evolution Of Mro Outsourcing: Global Trends, Regulatory Challenges, And Strategic Considerations In Aviation Maintenance, David C. Ison

Journal of Aviation Technology and Engineering

The maintenance, repair, and overhaul (MRO) industry plays a critical role in ensuring the safety, efficiency, and sustainability of the global aviation sector. As airlines seek to reduce costs, optimize operations, and access specialized expertise, MRO outsourcing has become an increasingly prevalent strategy. This essay examines the key drivers of MRO outsourcing, including cost reduction, access to advanced technologies, and the focus on core competencies. The essay also explores emerging trends such as the rise of new MRO hubs in Asia and the Middle East, the integration of predictive maintenance and artificial intelligence, and the growing emphasis on environmental sustainability. …

Polar Reconnaissance & Imagining Survey (Polaris), Max Brooks, Zion Carpenter, Isabel La Coss

Student Research Symposium (SRS)

In preparation for the permanent human presence on the lunar south pole as part of the ARTEMIS Accords, planned human excursions will conduct science on regions of interest to locate resources for sustained habitation. The objective of the Polar Reconnaissance & Imaging Survey simulation is to take a predetermined region sized image of a planned astronaut excursion site to identify terrain features and threats. This shall be a satellite mission control (MCC) simulation with four Earth-based satellite console operators, and one moon-based EVA encompassing.

Injuries And Accidents On Airport Ramps, Kavya Banarjee

Student Research Symposium (SRS)

Media coverage of aircraft incidents/accidents often triggers public scrutiny and heightened anxiety. But behind that are injuries and fatalities caused on the airport ramps; incidents like these are rarely covered by the media but pose just as much of a safety concern as an aircraft incident. This paper aims to inform aviation industry professionals and airline executives about the causes of incidents and accidents on the airport ramp; it also covers the importance of finding and implementing solutions for safety. The methodology for this paper focuses on research and analysis of publicly available information. Relevant data and perspectives were gathered …

Emulating Camera Parameters For A Digital Twin Lunar Terrain Simulation, Samuil Nikolov

Student Research Symposium (SRS)

Digital twin simulations play an integral role in the design, validation and implementation of a plethora of systems in any industry - including aerospace. EagleCam 2 presents a great technical challenge, where we need to evaluate how our systems will do data acquisition best - image capturing in particular. In order to assist with the design and validation of our systems, a digital twin that emulates the Lunar environment as we expect it to be during the lifecycle of the mission is a crucial component. Such digital twin system allows us to simulate all the parameters that are considered variable …

Crew Resource Management Analyzed In Guyana Military Accident, Kaylee Lall

Student Research Symposium (SRS)

"In December 2023, a Guyana Defence Force Bell 412EP helicopter crashed in mountainous jungle terrain near the Venezuela border, killing five of the seven personnel on board. Preliminary investigation findings indicate the probable cause of the accident was pilot error, rather than mechanical failure. Due to deteriorating weather conditions, the crew deviated from the standard route and elected to fly under visual flight rules (VFR) along the Mazaruni River. The combination of limited visibility, rising mountainous terrain, and potential spatial disorientation likely contributed to this controlled flight into terrain.

This case study applies the SHELL model to analyze the interactions …

Contrasting Coastal Dune Environments In Chile, Aurora Christianson

Student Research Symposium (SRS)

Emerging coastalization and urbanization threats to the prehistoric Concón Dunes and Humedal de Mantagua coastal area of Chile is being investigated by researchers via uncrewed aircraft systems (UAS). Four UAS were utilized: Anzu Raptor T, DJI Mavic 3E, DJI Mavic 3M, and DJI Air 3 to collect various images of the coastal dunes. Multispectral and RGB cameras gather images by photogrammetry to create orthomosaics and monitor vegetation indexes in Pix4Dmapper. Thermal cameras provided images in rainbow, white hot infrared, and black hot infrared schemes to monitor wildlife and vegetation. The normalized difference vegetation index (NDVI) was calculated to visualize overall …

Growing Plants On The Moon: How Mizuna Roots And Organic Matter Spark Microbial Metabolism, Stefani Capasso Villanueva, Nupur Kulkarni

Student Research Symposium (SRS)

Establishing functional plant–microbe systems in extraterrestrial substrates is critical for sustainable lunar agriculture. We tested whether manure amendment and Mizuna mustard (Brassica rapa var. japonica) rhizosphere activity enhance the metabolic potential of a lunar regolith simulant (LHS-1). Plants were grown in four treatments: Unplanted manure-amended regolith (LRM), planted manure-amended regolith (LRMP), planted unamended regolith (LRP), and soil controls. Plant height and community-level physiological profiles (CLPP; Biolog EcoPlates) were measured to assess growth and metabolic diversity. Mizuna grew best in soil, with modest improvements in LRMP compared to LRP, though regolith treatment differences were not statistically significant. CLPP revealed the highest …

Examining Self-Direction In Learning Programming Among First-Year Students, Abigail Blalock

Student Research Symposium (SRS)

In this poster, we present empirical insights into first-year students’ self-direction in learning programming. In this study, we use a 25-item Personal Responsibility Orientation to Self-Direction in Learning Scale (PRO-SDLS) to assess the self-direction of first-year students in learning programming. The PRO-SDLS is comprised of 4 constructs: self-efficacy, initiative, motivation, and control. Additionally, this study examines the results of the PRO-SDLS across different demographic groups (i.e., first-generation, students with employment, financial aid, etc.). A pre- and post-survey was administered during the Fall 2024 semester in an introductory programming course for first-year engineering students. Data was collected from seven course sections, …

Intravascular Ultrasound Is More Accurate Than Angiography In Arteriovenous Vascular Access Lesions, James W. Decker, Dima Banihani, Curtis Honshideler, Saran Lotfollahzadeh, David Jasen Wu Wong, Alik Farber, Jeffrey J. Siracuse, Najia Idrees, Laura Dember, Mohammad Bader, Suvranu Ganguli, Vijaya Kolachalama, Tarek Shazly

Faculty Publications

Background:

Conventional angiography remains the standard diagnostic modality for arteriovenous (AV) access dysfunction in hemodialysis patients, but its geometric accuracy is limited. Intravascular ultrasound (IVUS) offers superior lesion detection, yet its absolute measurement accuracy remains uncertain. Using three-dimensional (3D) printed vascular conduits as reference standards, we assessed the accuracy of IVUS versus angiography, hypothesizing that complex conduit geometry, quantified by Gaussian curvature, would exacerbate angiographic error.

Methods

Clinically relevant AV access geometries were modeled with computer-aided design (CAD) and fabricated using 3D printing. Lumen diameters were measured by contrast angiography and IVUS and compared with CAD dimensions. Conduit geometry was …

Numerical Investigation Of Highly Efficient Chlorine-Doped Perovskite Solar Cells, Md Abdul K Sheikh, Md Shazarul Islam, Hasina Huq

Electrical and Computer Engineering Faculty Publications

In this study, we present a comprehensive numerical investigation of chlorine-doped perovskite solar cells using the SCAPS-1D simulation framework, with the device structure ITO/ZnO/CH3NH3PbI3−xClx/NiOx/Au. This work focuses on optimizing active-layer properties and compositional engineering to enhance photovoltaic performance. Initially, the influence of absorber thickness on device parameters was investigated, revealing that CH3NH3PbI3 achieves optimal performance at 800 nm thickness, delivering a power conversion efficiency (PCE) of 24.17%, along with a short circuit current density (Jsc) of 25.31 mA cm−2, an open circuit voltage (Voc) of 1.15 V, and a fill factor (FF) of 82.75%. Subsequently, chlorine incorporation was systematically varied …

In Situ Detection Of Dead Cells From Live Cells Via A Dc Plus Low Frequency Ac Resistive Pulse Sensor, Jiang Zhe, Ge Zhang, Joseph Ketchum, Ashely Wong

University Research

Differentiation and detection of live and dead cells are critical for assessing cell viability in biomedical research, evaluating drug efficacy, and monitoring cytotoxicity in therapeutic applications. We present a microfluidic sensor that consists of two successive resistive pulse sensing channels. An excitation signal composed of a low-frequency AC (75 kHz) component and a DC bias was used to measure four key parameters. Through the AC measurement, differences in cell impedance causes variations in phase angle and voltage peak. From the DC measurement, cell size can be inferred from the resistive pulse magnitude, and the cell’s zeta potential is represented by …

Finding Research Datasets And Evaluating Data Quality, Ibis Anette Moreno-Lozano Phd.

Day Family Research Lab Workshop Series

No abstract provided.

Building And Sustaining Chosen Family Amongst Low-Income First-Generation Engineers, Justin C. Major

First-Generation Symposium

Support is integral for low-income first-generation student success in and out of engineering, particularly because of the role support plays in building belonging. Students receive support from many individuals including their traditional and chosen families. While traditional family are those family “assigned at birth,” chosen family are those family you pick and choose, inclusive of teachers, friends, and others. Our research group’s (ASPIRE) extensive work on the topic has documented how chosen family come to be and why they are important for low-income first-generation success. Amongst many components, we have found that chosen family are more trustable given their authenticity …