Digital Commons Network^™

Computational Design Of Nanoporous Materials For The Adsorption Of Per- And Polyfluoroalkyl Substances, Daniel D. Mottern

Dissertations

Per- and polyfluoroalkyl substances (PFAS) are a large family of chemicals that have seen wide usage due to their fluorinated carbon backbone. The presence of strong C-F bonds in the backbone lends PFAS molecules high thermal and chemical stability, as well as strong hydrophobicity and lipophobicity. This combination of properties has led to heavy use of PFAS as surfactants, non-stick coatings, and aqueous foam forming films and flame retardants. However, these properties bring their own consequences. The high chemical and thermal stability of PFAS renders them persistent, with the C-F bonds resisting naturally occurring forms of degradation. Existing forms of …

Entropic Forces Near Fluctuating Surfaces, Rubayet Hassan

Dissertations

Nanoscale structures are inherently dynamic due to persistent thermal fluctuations. Even in solid materials, these random deformations, driven by ambient thermal energy, can become significant when their characteristic scale approaches that of the structure itself and strongly influence their overall mechanical behavior. Examples of such structures include crystalline membranes, appearing in diverse forms such as nanotubes, nanoribbons, and kirigami/origami structures. Similarly, biological nanostructures, including lipid membranes, microtubules, actin filaments, and DNA, exhibit extreme flexibility and responsiveness due to their low bending rigidity. Numerous physiological processes are intrinsically linked to these thermal fluctuations, including exocytosis and endocytosis, membrane fusion, pore formation, …

Computational Methods For Single-Cell And Multi-Omic Data Integration And Regulatory Network Inference, Jianlan Ren

Dissertations

Single-cell and multi-omic technologies have transformed the dissection of cellular heterogeneity and regulatory dynamics in health and disease. However, the high dimensionality, technical variability, and biological complexity of these datasets present significant challenges for integration, annotation, and interpretation. In this dissertation, a suite of computational approaches is introduced to address key problems in single-cell and multi-omic data analysis through model-based innovations and applied statistical frameworks.

First, a constrained deep learning framework for single-cell data integration, label transfer, and clustering is proposed. By incorporating biologically motivated constraints into the training process, robust performance is achieved across simulated and benchmark datasets spanning …

Material Degradation And Analysis Of N-Doped Graphene/Mof Nanocatalysts For Orr In Electrochemical Energy Systems, Niladri Talukder

Dissertations

The development of advanced electrochemical energy conversion and storage systems is crucial for achieving sustainable energy security. As alternatives to precious metal-based catalysts in electrochemical systems, especially for the oxygen reduction reaction (ORR), Nitrogen-doped Graphene with Metal-organic Frameworks (N-G/MOF) nanocatalysts have shown exceptional promise in recent years. This research advances the understanding of N-G/MOF nanocatalysts by systematically examining their structural features, degradation traits, correlated performance losses, and other aspects related to catalytic activities.

First, nitrogen-doped graphene (N-G) nanocatalysts were thoroughly investigated, resolving their physical properties, the influence of synthesis parameters, molecular-level material structures, and chemical and electronic structural details of …

Data-Driven Analysis And Atomistic Simulations Of Next-Generation Materials For Energy Conversion And Storage, Yuliang Shi

Dissertations

Metal-organic frameworks (MOFs), with their modular architectures and tunable properties, represent an especially rich domain for accelerated material design and discovery for a range of diverse applications. Within this class of multifunctional materials, two-dimensional (2D) electrically conductive MOFs (EC MOFs) are of particular interest, as their 7r-stacked layered structures combine permanent porosity with electronic conductivity, enabling potential breakthroughs in energy storage, energy conversion, and quantum sensing. But the discovery and design of new EC MOFs based on expensive experimental screening is increasingly impractical due to the infinite chemical space. Furthermore, the practical implementation of EC MOFs for specific tasks depends …

Effect Of Local Steel Slag Incorporation On The Mechanical Properties Of Concrete, Ahmed Safaa Tariq Karmah, Wissam Khadum Alsaraj, Luma A. Zghair

Al-Esraa University College Journal for Engineering Sciences

The increasing interest in the production of concrete through the utilization of inexpensive materials has caused a rise in the number of studies concerning the use of materials with cementitious properties, such as Silica Fume, Slag, Fly Ash and other pozzolanic materials. Moreover, the increasing amounts of Steel Slag being produced from local factories that are being deposited without an available method of disposal provides an opportunity to harness the Slag in the production of an inexpensive, and possibly better concrete. Slag has been used as both an addition and substitution of the cement and fine aggregate. The mixtures included …

Decoding Climate Change: A Comprehensive Statistical Insight Into Temperature Anomalies In Iraq And Its Neighboring Countries, Jameel T. Al-Naffakha, Mohammed R. Al-Qassabanda, Israa Jafar

Al-Esraa University College Journal for Engineering Sciences

This study applies advanced statistical techniques, including the Mann-Kendall Trend Test and ARIMA forecasting, to validate and predict temperature anomalies across Iraq and its neighboring countries (2014–2024). Findings confirm a statistically significant warming trend (p < 0.00000005) across all nations, with Syria (1.02°C) and Turkey (0.97°C) experiencing the highest anomalies. GIS-based spatial analysis highlights regional disparities, identifying climate-vulnerable zones. The persistent rise in temperature anomalies correlates with worsening water scarcity, desertification, and extreme weather events, including prolonged droughts and heatwaves. Iraq’s peak anomaly (1.48°C) has exacerbated heat stress, agricultural decline, and reduced river inflows, while Kuwait and Saudi Arabia struggle to maintain critical infrastructure under record-breaking temperatures exceeding 50°C. These climate shifts pose severe risks to water availability, food security, and energy demand, necessitating urgent policy interventions. Key recommendations include enhanced water resource management, climate-adaptive agriculture, and renewable energy expansion. If left unaddressed, rising temperatures could destabilize the region, increasing socio-economic vulnerabilities and escalating resource conflicts. This study underscores the need for cross-border collaboration and sustainable adaptation policies to mitigate the long-term impacts of climate change in the Middle East.

Optimal Power Flow Control In The Iraqi Power Grid Using Artificial Intelligence Algorithms For Carbon Emission Reduction, Mohammed Shakir Juber

Al-Esraa University College Journal for Engineering Sciences

Iraq’s power sector remains in a protracted and severe crisis characterized by a significant mismatch between supply and demand, high levels of losses during transmission and distribution, as well as an increasing challenge to the resources base being largely unfavourably. These inefficiencies impose heavy costs on the national economy in excess of 40 billion annually and they also reinforce greenhouse gas emissions, and exacerbate environmental issues. To deal with these problems, we proposed in this paper that a new hybrid AI tool should be developed for the solution of multi-objective optimization problem based on purpose Genetic Algorithm (GA) merger with …

Applying Machine Learning Techniques For Early Detection Of Cyber Attacks On Iot Devices, Noor Adnan Allamy

Al-Esraa University College Journal for Engineering Sciences

This research designs, implements, and evaluates a machine learning-based framework for the early detection of cyber attacks targeting Internet of Things (IoT) devices, with a specific focus on the context and challenges present in Iraq. The study conducts a comparative analysis of three supervised learning algorithms—Support Vector Machine (SVM), Random Forest (RF), and Deep Neural Networks (DNN)—using a combination of benchmark datasets (NSL-KDD, CIC-IDS-2017, Bot-IoT) and a synthesized dataset adapted to simulate the Iraqi threat landscape. Key performance metrics, including accuracy, precision, recall, and F1-score, were used for evaluation. The proposed Random Forest model demonstrated superior performance, achieving an accuracy …

Ai-Enhanced Heat Transfer Optimization In Magnetic Bio-Nanofluids, Hasan Attyah Shaboot

Al-Esraa University College Journal for Engineering Sciences

This study presents a hybrid Artificial Intelligence–Computational Fluid Dynamics (AI-CFD) framework for optimizing heat transfer in magnetic bio-nanofluids subjected to external magnetic fields. Magnetic bio-nanofluids, composed of biocompatible base fluids containing superparamagnetic nanoparticles, exhibit tunable thermal and flow behavior, making them promising for biomedical and micro-cooling applications. Conventional optimization methods based on experiments or brute-force CFD are computationally expensive and limited in exploring the full design space. To overcome these challenges, an Artificial Neural Network (ANN) surrogate model was developed to predict two key performance indicators, the Nusselt number and the friction factor, with high accuracy (R² > 0.997). The surrogate …

Hybrid Experimental–Computational Study On The Energy Absorption Of Graphene Nanoplatelet-Reinforced Sandwich Structures, Hamdan Yousif Hamdan

Al-Esraa University College Journal for Engineering Sciences

Background: Sandwich composites are widely used in aerospace, automotive, and marine applications because of their lightweight, stiffness, and strength, but they remain prone to out-of-plane impacts and barely visible impact damage (BVID). Graphene Nanoplatelets (GNPs) have shown strong potential to improve fracture toughness and impact resistance. However, hybrid experimental–computational studies applying such reinforcement are still lacking in developing contexts like Iraq, where practical and accessible solutions are essential. Aims: The study investigates the effect of GNP reinforcement on the low-velocity impact behavior and energy absorption of glass fiber/epoxy sandwich panels with PVC foam and balsa wood cores. Objectives include fabricating …

Effect Of Thick Closed Walls Of West And South Elevations Of Iraqi Middle And South Territory Housing Building On Reducing Energy Use, Abeer Qasim Jbur, Shaimaa M. Hamza, Mayyadah Lutfi Abdulwahhab

Al-Esraa University College Journal for Engineering Sciences

Thermal insulation is one of the most important factors in achieving sustainability, increasing efficiency, and reducing energy consumption, but modern insulation materials are expensive, in addition to their availability. Therefore, through our research, we resorted to investigating the issue of reducing thermal load in buildings through the use of thick-walled facades in the southern and western facades, where we studied a building with two windows with windows on the southern and western facades and another without these windows and with thick walls, for two locations, the first in central Iraq, which is the city of Baghdad, and the second in …

The Impact Of Ethyl Levulinate Additive On Diesel Engine Performance And Emissions: An Experimental Study, Maha Ali Ghadbaan

Al-Esraa University College Journal for Engineering Sciences

This study explores the environmental and operational impact of adding Ethyl Levulinate—a biodegradable ester derived from biomass—to diesel fuel. A fuel blend known as B5El6 (comprising 5% biodiesel and 6% Ethyl Levulinate) was prepared and tested experimentally using a single-cylinder diesel engine operating at a constant speed of 1500 rpm under full load conditions. Performance metrics and emission data were recorded, and a Life Cycle Assessment (LCA) was conducted using the IMPACT2002+ methodology.

The results revealed that B5El6 significantly reduced greenhouse gas emissions (100 kg CO2 eq) and improved ecosystem quality. However, it presented challenges in terms of human health …

The Role Of The Scenario In Formulating The Contemporary Architectural Text, Rounaq Arif Mohsin, Abbas Ali Hamza, Bashar Shamil Alkhafaji

Al-Esraa University College Journal for Engineering Sciences

In order to create an integrated architectural text, which is a complicated art that blends beauty and practical elements, a rigorous design procedure is necessary. In this situation, the scenario’s role becomes crucial in developing the current architectural text and directing architectural approaches. In order to better understand how the scenario influences the design process and the interactions between various architectural aspects, this project intends to explore and analyze the impact of the scenario in developing and refining architectural text formulation approaches.

The study looks at the idea of a scenario and how it has been used in architecture, as …

Investigation Of Some Physical Properties Of Slurry Infiltrated Fibrous Concrete (Sifcon) Under Different Curing Times, Rand Kh. Mahmoud, Mohmmed Juad Khadhim, Fayq Hasan Jabbar

Al-Esraa University College Journal for Engineering Sciences

This research studied the effects of different types fibers (Basalt, Carbon and Basalt-Carbon hybrid mix) and curing ages (7, 14, 28 and 56 days) on some physical properties of - Slurry infiltrated fibrous concrete (SIFCON). Density, ultrasonic pulse velocity UPV, Poisson’s ratio and water absorption were measured for the experimental study with 30% cement replacement by Class F fly ash to increase sustainability. It was found that properties were significantly affected by the type and dosage of fiber admixture. The UPV was enhanced by basalt fibers and the absorption reduced up to an optimal range of 3–5% after which agglomeration …

Cybercrime Regulations In The National Criminal Code, Josua Sitompul

Indonesia Law Review

In early 2023, Indonesia promulgated the National Criminal Code, which will be effectively enforceable in 2026. The promulgation is considered a historical milestone in the development of Indonesia’s criminal law that has strategic consequences for the criminal justice system in Indonesia. This new code repeals criminal provisions from 29 different acts, including the Electronic Information and Transactions Act (EIT Act). Policymakers inserted and developed new concepts into the new code, one of which is the concept of cybercrime. Employing a doctrinal legal research method, this article analyses the approaches used in the new code to regulate cybercrime. The results showed …

Legitimate Interests As A Lawful Ground For The Processing Of Data And Ai Development In The Middle East, Moufid El-Khoury

Sultan Qaboos University Legal Studies Journal

This article addresses the legal basis of legitimate interests for the processing of personal data in the region of the Middle East. Three categories of countries emerge after the survey of selected data protection laws in the region: jurisdictions that explicitly enacted the legitimate interests as a lawful ground for the processing of personal data, those that established a variant of ‘legitimate rights’, and those that omitted the concept of legitimate interests entirely. This article argues that the absence of a lawful ground of processing based on legitimate interests makes the privacy landscape very rigid in some jurisdictions in the …

Delayed Management Of Bilateral Massive Epidural Hematoma Involving Parasagittal Sinus: A Comprehensive Scoping Review From Indonesian Perspectives, Wihasto Suryaningtyas, Alivery Raihanada Armando, Candra Dwantara Ramadhan, Muhammad Fadhil Kamaruddin, Ramadhani Rizki Zamzam, Nathania Nathania

Folia Medica Indonesiana

Introduction: Vertex epidural hematomas (VEDH) involving the superior sagittal sinus (SSS) are rare, critical injuries often complicated by massive venous hemorrhage. This study evaluates the clinical outcomes of VEDH and identifies systemic barriers contributing to treatment delays in Low- and Middle-Income Countries (LMICs). Methods: We present a case series of three patients managed at an Indonesian tertiary center alongside a scoping review of 33 studies. Delayed management was defined as prolonged injury-to-surgery intervals resulting from referral inefficiencies and transport logistics. Results: The series highlights a unique case of a 66-year-old male with bilateral VEDH and SSS laceration who underwent surgery …

Equivalent Survival Outcomes Across Different Management Strategies In Partial Small Bowel Obstruction At Dr. Kariadi Hospital, Semarang In January - December 2024, Ezra Endria Gunadi, Abdul Mughni

Folia Medica Indonesiana

Small bowel obstruction (SBO) is[30pc]AU: Please provide the publication history dates. a common clinical condition in general surgery, contributing to approximately 12% of surgical admissions globally. With over 300,000 operations performed annually, timely and appropriate management is crucial for reducing morbidity and mortality. Although operative management remains standard in many cases, non-operative strategies are increasingly utilized. However, comparative evidence on survival outcomes, particularly from developing countries, remains limited. To improve health outcomes, this study aimed to evaluate the survival outcomes of operative and non-operative management strategies for partial SBO at a tertiary referral hospital. A retrospective analytical cross-sectional study was …

K-U-L-T-U-R-A Sa Gitna Ng Suliranin Ng Lupang Tirahan Ng Pamayanang Ayta Ng Putingkahoy, Rosario, Batangas, Jeyson T. Taeza

Dalumat: Multikultural at Multidisiplinaryong E-Journal sa Araling Filipino

Suliranin sa lupa ang isa sa pinakamabigat na hamon ng mga pamayanang Ayta sa bansa, ngunit nanatiling limitado ang mga pag-aaral hinggil sa kanilang paninirahan sa labas ng lupang ninuno. Tinugunan ng papel ang puwang na ito sa pamamagitan ng pagsusuri sa karanasan ng pamayanang Ayta sa Putingkahoy, Rosario, Batangas bilang indigenous peoples outside ancestral domain. Ginamit sa pag-aaral ang modelong mnemonic na K-U-L-T-U-R-A at disenyong etnograpiya na nakabatay sa partisipasyon ng pamayanan upang masuri ang kamalayan, saloobin, pag-uugali, reaksyon, at pagkilos ng mga Ayta sa kanilang suliranin sa lupang tirahan. Natuklasan na ang paninirahan sa labas ng lupang ninuno …

The Problem With The Mode Of External Debt Servicing: The Case Of Nigeria, Shehu Tijjani Muhammed

Bullion

This study empirically tested the hypothesis that external debt servicing leads to debt accumulation using Nigeria as case study. The method employed combines logic and debt stock variation analysis. Results indicate that Nigeria has served interest on its external debt only to see its external debt stock increasing confirming the hypothesis. A reform is needed to enable the country retain the domestic income lost to international speculative capital to boost government revenue. A sovereign agency to intermediate between the indebted residents, exporters, and the banking system can be created to solve the problem.

Endogenous Liquidity Shocks And Liquidity Management Dilemma In Nigeria, Temitope J. Laniran, Hamza Abdulaziz, Nuruddeen Usman

Bullion

This paper examines the Central Bank of Nigeria’s (CBN) liquidity management framework over a period marked by aggressive monetary tightening in response to persistent inflationary pressures. The analysis suggested that despite sustained sterilisation efforts through CRR debits and open market operations (OMO), liquidity surpluses persisted, driven largely by autonomous factors such as fiscal injections, maturing OMO bills, and foreign exchange interventions. The resulting structural liquidity surpluses periodically weakened the alignment between short‐term interest rates and the policy corridor, highlighting operational frictions and transmission inefficiencies. The paper opines that heavy reliance on blunt liquidity‐absorbing instruments without addressing the root causes of …

Optimal Sizing Of Pv Water Pumping System For Off-Grid Rural Communities, Basma Abulkheir, Eid Gouda, A. A. Hegazi, Amir Abdel Menaem

Mansoura Engineering Journal

A large population worldwide lives in remote rural communities without access to electricity due to the limited reach of national transmission networks. This creates significant challenges in accessing water, hindering improvements in living conditions for off-grid communities. Photovoltaic water pumping systems (PVWPSs) offer a viable solution to this issue, but their sustainability must be examined due to the unpredictable nature of solar radiation. This paper presents a practical techno-economic approach to optimally size a PVWPS. A Particle Swarm Optimization (PSO) algorithm is employed, considering technical and economic indicators like life cycle cost, loss of load probability and PV curtailment rate. …

Efficient Task Allocation Technique For Robots In Smart Warehouse Using Center Of Items (Coi) Methodology, ‪Ahmed Yahya‬‏, Mohamed S. Saraya, Ahmed I. Saleh

Mansoura Engineering Journal

Nowadays, online shopping is very important in Daily life. in 2020 During the quarantine during the spread of COVID-19, online orders increased dramatically, as a result of the great progress in fifth-generation technologies and using the Internet of Things (IoT) and industrial Internet of Things (IIoT), industry 4.0 and 5.0, fog computing, cloud computing, robots systems, and drones systems. Smart warehouses picking system becomes a Basic need and can be implemented to improve efficiency in logistics. Smart warehouses are growing more dependent on robot systems to make the process of meeting these requests more flexible and effective. Therefore, the allocation …

Evaluating Stormwater & Carbon Benefits Of Urban Street Trees, Anthony J. Rodriguez Diaz

Theses

Urban areas experience a multitude of environmental challenges, including flooding and air pollution. In response to these pressures, urban forests have emerged as an essential nature-based strategy to enhance resilience and reduce climate-related risks. The implementation and expansion of urban street trees further contribute to this effort by mitigating stormwater runoff and reducing atmospheric carbon emissions.

Fortunately, advances in environmental modeling have made it increasingly possible to quantify these ecosystem services using specialized software. The United States Department of Agriculture (USDA) Forest Service's i-Tree suite exemplifies this progress. The software provides a comprehensive set of tools designed to quantify environmental …

The Effect Of Withering Methods On Physicochemical And Sensory Properties Of Liberica Coffee Leaf Tea (Coffea Liberica), Surhaini Surhaini, Indriyani Indriyani, Rahayu Suseno, Rinaldi Rinaldi, Ferry Jie, Huda Wazzan

Research outputs 2022 to 2026

This study aims to evaluate the effect of different withering methods on physicochemical and organoleptic properties of Liberica coffee leaf tea (Coffea liberica) and to identify the optimal treatment. The experiment was conducted using a Completely Randomized Design (CRD) with five withering treatments, including no withering, room temperature withering for 10 h, air withering for 10 h, oven withering at 60°C for 30 min, and steaming for 2 min, each with four replications. The observed parameters included powder moisture content, pH, color (L*, a*, b*), antioxidant activity, total phenols, total tannins, flavonoids, and sensory attributes, namely color, aroma, acidity, taste, …

Role Of Primary Healthcare Centers In The Prevention Of Overweight And Obesity, Safanah Ghassan Al-Chalabi, Eman Adnan Al-Kaseer

Hilla University College Journal For Medical Science

Background: About two-thirds of the population worldwide are obese or overweight, and if the current trajectory continues, 50% of the population will be obese by 2030. Community health centers and primary care providers are leading the charge against this epidemic.

Objectives: To report on sharing primary healthcare centers in the prevention of obesity via the knowledge, attitude, and practice of primary healthcare physicians.

Methods: A cross-sectional study, including analytical components was performed, involving a total of 224 primary healthcare physicians for the period 1^st Nov. 2024 to 1^st April 2025. In addition to demographic data, knowledge, attitude, and …

Digital Twinning To Advance Effluent Water Treatment For Pulp And Paper Mills: A Data-Driven Approach For Process Optimization, Fatima Iqbal, Fatemeh Naeijian, Christopher Page, George Fu, Francisco Cubas-Suazo, Stetson Rowles

Civil Engineering & Construction: Faculty Publications

The pulp and paper industry is the third largest freshwater consumer and faces pressure to minimize water usage and environmental impact. Aerated stabilization basins (ASBs) play a crucial role in treating their wastewater, yet existing open-source models often fail to accurately predict treatment efficiency across varying conditions. This study addresses this gap by advancing ASB modeling for ultimate oxygen demand prediction. Specifically, we improved accuracy with variable temperature corrections and incorporating uncertainty to capture the variability in outputs. The models demonstrated strong predictive performance for ultimate oxygen demand (mainly carbonaceous and nitrogenous biochemical oxygen demand) with R2 values ranging from …

The Influence Of Social Media Interactions On Consumer Behavior In Influencer Vs. User-Generated Destination Content: The Role Of Source And Content Factors, Elmira Listiawardany, Rifelly Dewi Astuti

ASEAN Marketing Journal

Based on Service Dominant Logic, Value Co-Creation, and the Information Adoption Model, this research model examines the influence of Social Media Interactions on destination content on Visit Intention and Behavioral Engagement, involving Source Credibility, Homophily, and Content Quality as mediators in this relationship. To provide more specific implications, this study also compares how the model applies to two different types of content, namely influencer content and user-generated content (UGC).

This research uses a survei questionnaire method and obtained 313 samples that meet this research criteria, which are those who located in Indonesia, age 17 to 43, using social media, and …

Smart Building Rating System: A Comparative Analysis Of National And International Rating Systems, Amanah Hamidah, Mohammed Ali Berawi, Mustika Sari, Gunawan Saroji

CSID Journal of Infrastructure Development

Smart buildings have become a key part of the Fourth Industrial Revolution, driven by the need for efficient, sustainable, and adaptive built environments. Their importance is growing alongside Indonesia’s effort to develop smart cities. This study compares Indonesia’s national smart building certification system, established under Ministerial Regulation No. 10 of 2023, with two international systems: the European Union’s Smart Readiness Indicator (SRI) and the SmartScore certification. The analysis uses a literature review and comparative method to examine each system’s assessment criteria, scoring method, and certification tier. The findings show that Indonesia’s regulation includes six parameters, such as cybersecurity and operational …