Digital Commons Network^™

Fault Diagnosis And Fault Tolerant Structure For Multilevel Inverters Using Machine Learning Techniques, Sudha V

Theses and Dissertations

A paradigm shift towards electric drives in domestic and industrial sectors has significantly increased the use of multilevel inverters (MLI). MLIs are constructed using more semiconductor devices, which hinders safety and reliability. Literature states 31.2% of failures in MLIs are due to semiconductor devices. Hence, there is a need for fault detection and tolerant mechanisms to ensure the safety and reliability of MLIs.

MLIs like Cascaded H-bridge(CHB) and Packed U cell(PUC) are mostly preferred due to low harmonic distortion, which is considered in this work. The complexity associated with fault diagnosis with more components in MLIs is addressed by machine …

Agricultural Drought Prediction From Multispectral Image Processing Using Deep Learning Models, Gowri L

Theses and Dissertations

Accurate and timely prediction of agricultural droughts is fundamental to the management of ecosystems, preservation of biodiversity, and environmental sustainability. It helps to reduce environmental exploitation, promotes eco-friendly irrigation techniques, and tackles climate change efficiently. Its social implications include food safety and financial stability through continuous rural employment. Drought prediction guarantees social progress and sustainability by ensuring zero hunger/poverty and effective water management. A multi-sensor image pre-processing framework that incorporates data from various satellite platforms like Landsat (30 metres), Sentinel-2 (10 metres, 20 metres, 30 metres), and MODIS (500 metres) is used to monitor and assess agricultural drought effectively.

Analysis …

Performance Assessment Of Fiber-Reinforced Asphalt Mixtures: A Comprehensive Laboratory And Full-Scale Investigation, Ali Raza Raza Khan

Theses and Dissertations

Asphalt concrete is a composite material widely used in the construction of roads; however, fatigue cracking (load associated), thermal cracking (non-load associated), and permanent deformation (or rutting) are the most challenging issues in flexible (or asphalt) pavement structures. These distresses affect ride quality and are considered the most well-known pavement deterioration types. Several modifiers have been used as potential solutions to cracking and rutting of asphalt mixtures (i.e., polymers, geogrids etc.). Among these modifiers, fibers were introduced to improve the resistance of asphalt mixtures to rutting and cracking. Addition of fibers into the asphalt mixture is always challenging because of …

Using Unmanned Aerial Vehicles To Facilitate Traffic Incident Management, Adam William Hill

Theses and Dissertations

Incident management teams (IMTs) minimize crash impacts and create a safer highway network for people and communities. Research has shown that optimizing the IMT fleet has strong benefits to the roadway network, but future models indicate that increasing IMT presence may have diminishing returns after excessive roadway saturation. The Utah Department of Transportation (UDOT) would like to improve situational awareness in areas of poor or limited camera coverage, where situational awareness is typically poor. UDOT is considering the use of unmanned aerial systems (UAS) to provide live camera coverage of traffic conditions in these instances. This thesis synthesizes practice from …

A Geomatic Appraisal On Restoration Of Tank Cascade Systems In Ambuliyar Watershed, Tamilnadu, Nasir N

Theses and Dissertations

Tanks and earthen embankments used for water harvesting and storage have been a significant part of India's irrigation system since the 2nd and 3rd centuries. In Tamil Nadu, around 39,202 tanks have storage capacities of around 178.94 million cubic feet. However, they have been impacted by natural and anthropogenic threats such as soil erosion, siltation, inadequate rainfall, and drought. This study aims to determine the current storage capacity of tanks, estimate the loss in storage capacity/volume of silt, estimate the rate of siltation and life of tanks, identify soil erosion-prone zones, and map deteriorating parameters along supply channels.

The study …

A Qualitative Program Evaluation Of A Community College Mentoring And Advising Initiative For First-Time, Full-Time African American Men, Duane Westley Reid

Theses and Dissertations

Duane W. Reid A QUALATATIVE PROGRAM EVALUATION OF A COMMUNITY COLLEGE MENTORING AND ADVISING INITIATIVE FOR FIRST-TIME, FULL-TIME AFRICAN AMERICAN MEN 2024-2025 Monica Reid Kerrigan, Ed.D. Doctor of Education This study examines the experiences of African American male students within the Operation Achievement initiative at Unique College, a community college in New Jersey with an enrollment of over 8,000 students across its four campuses, located in both urban and suburban settings. The educational challenges faced by African American male students have been widely researched, with many studies highlighting the risk factors that hinder their academic achievement. Variables such as race …

Generating Real-Time Synthetic Datasets To Improve Aerial Object Detection, Garrett Williams

Theses and Dissertations

The widespread use of unmanned aerial vehicles (UAVs) across civilian and military applications has necessitated the advancement of real-time drone detection and tracking capabilities. Machine Learning (ML) addresses these requirements, however, to train a robust and generalizable model requires large and diverse video datasets. Curating these real-world datasets is often time-consuming and cost-prohibitive. Here, we present DyViR, a real-time customizable rendering application capable of automatically generating highly realistic synthetic, multi-modal video of aerial objects, digital environments, and automatic generation and labeling of bounding boxes. Synthetic data, coupled with real-world training sets, augment the ML training process, leading to increased performance …

Shtëpi Banimi E Vetëqëndrueshme Villa S, Jon Fida

Theses and Dissertations

Kjo tezë fokusohet në hulumtimin dhe zhvillimin e një dizajni të vilës së qëndrueshme duke respektuar standartet ZEB të projektimit. Për dizajnimin e vilës së qëndrueshme do të merren për bazë standartet ZEB për dizajnim dhe projektim të vilave.

Lokacioni i përzgjedhur për dizajnimin e vilës së qëndrueshme në Mavrovë, përbën një sfidë në vete. Përzgjedhja e materialeve, përpos që duhet të përshtatet me lokacionin, duhet ti plotësojë nevojat e izolimit termik, si dhe kërkesat dhe vlerat për një zhvillim bashkëkohor. Intenca për një izolim të duhur termik, me një përfundim me ndikim sa më të vogël në mjedis.

Inhibition Of Lysine Deacetylase Activity Impacts Formation Of The Vitamin D Receptor Activation Complex, Shannon Dwyer

Theses and Dissertations

The vitamin D endocrine system is responsible for the regulation of many biological processes including bone metabolism, calcium homeostasis, cell proliferation and cell differentiation. Alterations to the vitamin D signaling pathway are associated with several diseases including bone diseases, diabetes, cardiovascular diseases, autoimmune diseases, and cancer. Vitamin D precursors are chemically modified to become the biologically active hormone, calcitriol. Calcitriol binds to the vitamin D receptor (VDR), a member of the nuclear hormone receptor (NHR) superfamily. VDR forms a heterodimer with retinoid X receptor (RXR) and together they bind to promoters containing vitamin D response elements (VDREs) to activate transcription …

Investigating The Risk And Protective Factors Of Internet Addiction Among Adolescents Through The Lens Of Cognitive Behavioral Theory: A Cross-Sectional Study, Noura Shaltout

Theses and Dissertations

—Introduction: The Internet has become a central part of modern life, enhancing education, providing means of global communication, and facilitating access to information and entertainment. However, an attendant risk of excessive Internet use is becoming unconsciously addicted to virtual online activities, especially when large tech companies design their products in a way that makes them addictive to users. These companies have the tools and knowledge that allow them to manipulate and transform the behavior of their target audience. Thus, this study aimed to investigate the potential risk and protective factors for Internet addiction among adolescents. Methodology: This cross-sectional study employed …

Integrated Agricultural Interventions And Women’S Empowerment\ A Case Study Of “She Feeds The World” – “Aysheen Bekhirha” Program In Egypt, Pakinam Shibl

Theses and Dissertations

“She Feeds the World” program is a program that empowers women in farming communities by integrating them into the agricultural value chain. With increased access to essential resources such as land, seeds, water, and technical training, women are expected to actualize their full potential and generate more income. This paper explores the intersection of societal mobilization and economic development through a case study of the “Aysheen Bekhirha” program. By drawing on primary sources, the researcher aims to provide insights into the program’s multifaceted approach and its impact on economic and social outcomes. The analysis focuses on the significance of women’s …

Reporting Sexual Violence: The Victim's Right To Protection And Justice, Nada Shehata

Theses and Dissertations

Incidents of sexual violence are still under-reported to legal institutions in Egypt despite the recent legal amendments. The reasons for under-reporting SV incidents to police stations appear to be the same that justifies victim’s non-reporting or resorting to various social media accounts on Facebook and Instagram as “Daftr Hekayat” and “AssaultPolice” which provided a safe space for them to reveal the assault incidents and warn potential victims from the shamed assailants. As successful as these accounts are, they have their drawbacks. It is not accessible to economically and educationally disadvantaged victims, and lately, the perpetrators started to file defamation lawsuits …

Construction Change Order Data As Inputs For A Programmatic Risk Model, Eric C. Klein

Theses and Dissertations

Hurricane Michael struck Tyndall Air Force Base as a Category 5 storm with 160 mph winds, damaging or destroying 90% of its infrastructure (484 buildings). This devastation prompted the Department of Defense to rebuild Tyndall as the “Installation of the Future,” encompassing 44 Military Construction (MILCON) projects and 260 Facility Restoration, Sustainment, and Modernization (FRSM) projects. Since reconstruction began, over 630 Change Request Forms (CRFs) have been closed, adding $67.8 million in costs and 4,880 construction days. The Air Force Civil Engineer Center's Natural Disaster Recovery (NDR) Division developed a programmatic risk model to predict future costs and delays. However, …

The Feminization Of Deteriorated Labor Force Participation In Egypt: 1990 – 2024, Mennan Gamal Nour El Din

Theses and Dissertations

The purpose of this thesis is to explain why female labor force participation deteriorated in quantity and in quality despite the recent rise in female educational attainment levels over the past three decades (1990 – 2024). On the one hand, labor participation declined, whereas on the other hand, female informal employment remains high in Egypt. This thesis dissertation utilizes a qualitative research methodology through both secondary data in the form of descriptive statistics on the phenomenon of female labor force participation as well as primary data in the form of six in-depth expert interviews with experts in the fields of …

The Role Of Gsk-3Α Inhibition In Attenuating Lps-Induced Inflammation In Raw 264.7 Cells, Oluwaseyi Oyewole

Theses and Dissertations

Glycogen synthase kinase-3 (GSK-3), an enzyme that modulates glucose metabolism, has been recognized as an essential target in major inflammatory diseases based on its great specificity in substrate recognition. GSK-3β has been connected to cancer, obesity, liver diseases, and neurological diseases. Nonetheless, the other GSK-3 isoform, GSK-3α, is much less studied. Previous studies from our laboratory showed that inhibiting GSK-3α potentially confers an anti-inflammatory response when tested on microglia. However, little has been documented regarding the exact mechanism by which GSK-3α exerts its effect. One of the potential mechanisms involving its anti-inflammatory effect could be partially attributed to activating the …

Metaheuristic Techniques To Optimize Trajectory Planning Of Uav Swarms: Enhancing Data Acquisition In Wireless Sensor Networks, Nada Ali Mohamed Ahmed Ahmed

Theses and Dissertations

Unmanned aerial vehicles (UAVs) have become increasingly integrated into various applications due to their cost-efficiency, rapid deployment, flexible maneuvers, and enhanced performance. This has led to the development of a new field called UAV-assisted Wireless Sensor Networks (U-WSNs), which focus on data routing, network performance optimization, and planning UAV trajectories between sensor nodes in wireless sensor networks. In this thesis, a new framework has been proposed to manage a swarm of UAVs cooperatively serving large-scale wireless sensor networks. The framework consists of three optimization problems: distributing sensor nodes among UAVs, finding optimal trajectories in the presence of obstacles, and performing …

Knocking On Gelenbevī’S Door: A First Exploration Of The Epistemological Overcoming Of The Aristotelian Conception Of Metaphysical Modalities In The Thought Of IsmāʿĪl Gelenbevī (D. 1790/1 C.E.), Hisham Fahmy Al-Farrash

Theses and Dissertations

This thesis is a first exploration of the epistemological turn in metaphysical modalities within Arabic philosophy, particularly within its post-classical period (circa 1100 – 1900 C.E.), which is the turn that highlights the Arabic post-classical philosopher’s attempt(s) to overcome the Aristotelian conception of metaphysical modalities. I here focus on some linguistic, philosophical, and theological nuances of this turn, by synoptically comparing the conceptions of metaphysical modalities of Ismāʿīl Gelenbevī (d. 1790/91) and Aristotle (d. circa 322 B.C.) as two points of culmination in their respective tradition’s reflections on modalities, which is the comparison that presents Gelenbevī’s said conception for …

Local And Transregional Networks Of Women In Late Medieval Mecca And The Mamluk Empire, Mona Hafiz

Theses and Dissertations

This thesis examines the local and transregional networks of women in Mecca during the ninth/fifteenth century, as represented in the biographical dictionaries of al-Sakhāwī (d. 902/1497), Ibn Fahd (d. 885/1480), and al-Fāsī (d. 832/1429). It combines qualitative and quantitative methods in order to analyze the family, knowledge, and travels networks of women in late medieval Mecca and the Mamluk empire. It argues that Meccan women’s social and intellectual roles extended beyond their families, to other families, scholars, and regions. Simultaneously, the thesis focuses on Mecca as a central node in the networks that tied together different regions of the Mamluk …

The Right To Truth In Transitional Justice, Nouran Hassan

Theses and Dissertations

Transitional justice is sought by nations suffering from legacies of human rights violations. The field of transitional justice stands on four main pillars: truth seeking, criminal justice, reparations and guarantees of non-recurrence. It promotes utilizing legal and non-legal mechanisms to achieve a transition to democracy and the mechanisms employed must relate to, at least, one of its pillars. Truth is considered substantial for transitions to happen. Revealing the truth is believed to be essential for reconciliation and promoting peace. However, in various experiences the truth did not lead to reconciliation and was widely distorted. The approach of the transitional justice …

Exploring The Contributing Factors To Irregular Migration Towards Sweden Among Eritreans In Egypt, Mohammad Ammar Alhasn

Theses and Dissertations

This thesis provides an understanding of the interplay between individual aspirations, social networks, and policy frameworks to explore the impact of such factors on the mobility of Eritreans from Egypt towards Sweden. Utilizing a qualitative research approach, the study engaged with twenty-four Eritreans through semi-structured interviews to delve into their lived experiences and decision-making processes. The research is underpinned by theoretical frameworks as follows: social network theory, and institutional theory, which collectively inform the analysis of the migratory phenomenon. The findings reveal that the decision to undertake irregular migration is driven by a confluence of factors in Egypt as a …

Evaluation Of The Adoption Of World Health Organization 10-Group Classification System For Cesarean Section In Egyptian Hospitals, Reham Dewedar

Theses and Dissertations

Egypt has seen a significant rise in Cesarean Section (CS) deliveries over the past decade. While CS is a crucial procedure that can save lives when medically indicated, its misuse poses risks to both mothers and infants, including potential mortality. To address this issue, the WHO introduced the 10-Group Classification System (TGCS) in 2015 to standardize CS monitoring, aiming to prevent overuse or underuse of CS and to enable comparisons across health facilities and countries. This tool was introduced in Egypt through a training session conducted by the World Health Organization (WHO) in 2021.This study examines the effectiveness of this …

Operation And Maintenance Costs In Reverse Osmosis Desalination Projects Adopting Public-Private Partnerships: A Comprehensive Investigation And Analysis, Mayar Mohamed Khairy

Theses and Dissertations

Water Desalination projects, specifically ones adopting reverse osmosis (RO) technology, play a pivotal role in addressing the scarcity of water globally. Since these projects require huge investments, there is an imperative need to focus on the role of public-private partnerships (PPPs) in their developments. This research tries to provide a comprehensive investigation into the factors affecting O&M costs in PPP desalination projects due to their importance.

A comprehensive research approach, including a literature review, expert interviews, survey analysis, and statistical tools, is adopted in this research aiming to identify key factors and recommendations based on best practices in O&M costs …

Functional Dissection Of The Periplasmic Domain Of Rcsd, The Phosphotransfer Protein Of Escherichia Coli Rcs System, Abdelraouf Dapour

Theses and Dissertations

Microbial resistance to antibiotics poses a major health threat worldwide, prompting the scientific community to dedicate considerable efforts toward understanding the molecular mechanisms underlying this resistance. The Gram-negative cell envelope serves as a formidable barrier to environmental stressors and numerous antimicrobials. In E. coli and other enterobacteria, the Rcs system (Regulator of capsule synthesis) is a crucial two-component signalling pathway that plays a critical role in maintaining the integrity of the bacterial envelope. One unique aspect of the Rcs system is the involvement of several auxiliary proteins in its signalling cascade. Among them, RcsD, an inner membrane 100 kDa protein, …

Sustainability Transformation For Healthcare Facilities Following Net Zero Model, Esraa Elmitainy

Theses and Dissertations

The healthcare industry is a field undergoing huge development. Focused on SDG 3 “Good Health and Well-being”, the healthcare industry, as the main health service provider, was marked by experts as a sector that should lead sustainable development by example. The current work aims to formulate a sustainability rating system for new and existing healthcare facilities to encourage the Egyptian healthcare industry to move towards sustainability according to net zero concepts. Additionally, the transition to net zero waste is investigated though experimental work to test the possibility of utilizing sterilized medical waste in cement-based bricks.

The rating system starts with …

Design And Implementation Of Uvm-Based Verification Framework For Deep Learning Accelerators, Randa Ahmed Hussein Aboudeif

Theses and Dissertations

Recent advancements in deep learning (DL) have made hardware accelerators, known as deep learning accelerators (DLAs), a preferred solution for numerous high-performance computing (HPC) applications, including speech recognition, computer vision, and image classification. DLAs are composed of hundreds of parallel processing engines to speed up computations and can gain access to pre-trained networks from the cloud or through on-chip memory to implement the DNN inference process. DLA verification is becoming an important and challenging phase. The verification process is required to handle the complex DLA design. Moreover, the reliability of DLAs is critical for assessment as they are involved in …

Rethinking Rupture And Continuity: Al-Jarād And Khamāsīn, Two Poetry Magazines Of The Egyptian 1990s, Caroline Benson

Theses and Dissertations

This thesis analyzes two Egyptian poetry magazines, al-Jarād and Khamāsīn, to enrich critical understanding of the Egyptian literary 1990s. It uses The Rules of Art: Genesis and Structure of the Literary Field (Les Règles de l’art: Genèse et structure du champ littéraire), Pierre Bourdieu’s 1992 sociological study of the literary field, as a theoretical framework. Numerous scholars have noted that the “nineties generation” is known for its aversion to politics, ideologies, and collectivities; its rupture with stylistic and thematic conventions of its predecessors; and its turn away from the “major issues” (al-qaḍāyah al-kubrā) of the …

Unlocking Local Economic Potential: Understanding The Role Of Place-Based Industrial Policy In Egypt, Nashwa Shaban

Theses and Dissertations

Industrial Policy has regained prominence in both academic and practical spheres over the years, as the discourse largely shifted from an ideological debate to exploring ways for effective implementation. This renewed interest, coupled with growing concerns over regional inequality and persistent economic distress, has sparked a growing interest in Place-based Industrial Policies. Place-based Industrial Policy is an approach to industrial policy that focuses on both specific industries and locations through various policy Instruments. Similar to industrial policies, the outcomes of place-based policies have been mixed, nevertheless, evidence suggests that they often achieve the intended objectives especially in lagging and declining …

Assessing Egypt’S Readiness To Introduce Program And Performance-Based Budgeting, Eman Negm

Theses and Dissertations

Program and performance-based budgeting is one of the recent and most controversial developments in the Egyptian budgetary system. As a results-based budgeting methodology, it can potentially support the government's endeavors to enhance the efficiency and effectiveness of public expenditures and improve the overall levels of transparency and accountability. As per the new Unified Finance Law, Egypt is preparing for the full implementation of the program and performance budgeting reform to start in FY 2027-2028. The main objective of this study is to assess the readiness of Egypt to introduce program and performance-based budgeting based on six main assessment pillars which …

Breaking Taboos: Syrian Women Reshaping Gender Roles In Zarqa, Jordan, Farah Qonaish

Theses and Dissertations

This research explores the changes in gender roles among Syrian refugee women in Jordan. Since 2011, more than a million Syrian refugees have settled in Jordan. Around 83% of Syrian refugees have resided in host communities in Jordan and around 70% of the Syrian population come from the rural areas in Syria refugees. Syrian refugees have experienced change on different levels of their lives since the beginning of the displacement. This ethnographic study was conducted in Zarqa, a major city in the middle region of Jordan, and a major host community for Syrian refugees in Jordan. The city is known …

Unveiling The Public Sector Hold: Egyptian Women And Work-Life Balance, Safa Gadelhak

Theses and Dissertations

Educated women in Egypt view the public sector as their preferred employer, irrespective of their educational level or recent efforts towards women empowerment and the rise of digitization. This study attempts to understand the perceptions of working women, through analyzing their reasons whether prominent or underlying to make this career choice. To better understand this behavior, twenty semi-structured interviews and two focus group discussions were conducted with a total of thirty women from both public and private sectors. The findings revealed that women gravitate towards the public sector mainly because of five reasons: (a) convenient working conditions, (b) feeling stuck, …