Digital Commons Network^™

Design And Implementation Of Non-Isolated High Gain Dc-Dc Converter For Photovoltaic Application, Rajesh R

Theses and Dissertations

Fossil fuel-based power plants emit 25% of greenhouse gases and 40% of carbon emissions globally. Therefore, several countries focus on deploying RES-based electricity production (such as solar and wind). As per the International Energy Agency report, solar PV might be the lowest-cost option for generating electricity in the future. Solar energy is highly emission-free, but it is still a key challenge in procuring the maximum amount of energy from solar PV due to its non–linear characteristics. Therefore, a DC-DC converter must integrate with solar PV to increase the output voltage level. Many existing topologies exist in the literature, but the …

A Rabbit Model Of Voice Function Changes Caused By The Administration And Subsequent Withdrawal Of Asthma Inhalers, Savannah Forbes Bullock

Theses and Dissertations

Combination inhaled corticosteroids (ICs) are the primary treatment prescribed for patients with asthma; however, voice problems are also associated with ICs. In this study, 32 rabbits were assigned randomly to one of five experimental groups: baseline, induction, induction control, reversibility, and reversibility control. The baseline group received no treatment and larynges were obtained following quarantine. Rabbits belonging to experimental groups received IC treatment twice a day until trained raters noted visible vocal fold changes during endoscopy, which was performed every 2 weeks. When changes were observed, animals were euthanized, and the larynges were harvested from the experimental induction group and …

Exploring Caregiver Support For Advanced Practice Nurses Following An Error, Sunnie Lee Nield

Theses and Dissertations

Advanced Practice Registered Nurses (APRN) are a growing population of employed individuals within the healthcare system, working in outpatient and inpatient settings. Like other healthcare professionals, nurse practitioners can and do make errors while practicing. Nevertheless, little to no research has focused on them. This research aimed to better understand nurse practitioners' attitudes towards error approach, perception, and cause using the Medical Error Attitude Scale (MEAS). Additional purposes included the further exploration of APRNs' experiences following an error and support they may or may not receive. A convenience sample of ARPNs licensed in Utah was sent an electronic survey via …

The Space Between Pedagogy And Praxis: Enacting An Accessible, Critical Disability Studies Pedagogy Through The Course Syllabus, Jennifer M. Coe

Theses and Dissertations

This thesis explores the practical implementation of an accessible critical disability studies (CDS) writing pedagogy within the framework of course design, with an emphasis on the syllabus as a transformative tool of invention and possibility. By interrogating the course syllabus as a mediator of access, this project works to bridge the gap between theoretical insights and tangible movement towards access and seeks to contribute to the ongoing discourse on inclusive and accessible pedagogy, encouraging educators to reimagine their classrooms to better serve diverse student populations. This research focuses on the intersection of pedagogical strategy and praxis, institutional policy, and inclusive …

Design Of Multi-Objective Optimization Algorithms For Vlsi Floor Planning, Srinivasan B

Theses and Dissertations

VLSI floorplanning is a key design step that determines the optimal placement of circuit modules to minimize chip area, wire length, and heat generation. Existing swarm intelligence–based metaheuristics improve area and wire length but often ignore thermal effects.

To address this, the Multi-Objective Firefly Optimization–based Floorplanning (MOFO-FP) technique is introduced, using a Heat-Aware Firefly Optimization (HAFO) algorithm that minimizes heat, space, and wire length under fixed outline constraints. Each firefly represents a floorplan, with brightness indicating solution quality; dimmer fireflies move toward brighter ones to find optimal placements.

A second method, the Hybridized Multicriteria Ant Colony and …

The Impact Of Divided Attention Tasks On Stress: Insights From Heart Rate Variability And Galvanic Skin Response, Kira Stefanie Uluave

Theses and Dissertations

This study examined the impact of divided attention tasks on stress using physiologic measures. The divided attention conditions included speech tasks (conversation or procedural discourse) and non-speech computer-based tasks (visuospatial, mathematical, language, data entry, or text editing). Participants included 60 adults divided into two groups of 30 by age. The young adult group ranged in age from 18-30 years and the older adults ranged from 55-82 years. Participants were required to perform the speech task and the non-speech task in isolation as well as a speech task performed concurrently with each of the non-speech tasks. The order of the tasks …

Digitally Beamformed 2d Scanning Phased Array Radar For Networked Unmanned Air Vehicle Detection And Tracking, Carson Reed Brown

Theses and Dissertations

Radar systems vary significantly in size, weight, power, and cost (SWaP-C) characteristics with many high SWaP-C models being inaccessible to consumers. Recognizing this, we have engineered an effective but low SWaP-C networked radar system tailored for detecting and tracking unmanned air vehicle (UAV) traffic. Using field-programmable gate arrays (FPGAs), and custom-designed printed circuit boards (PCBs), our system achieves remarkable efficiency without compromising performance. We use patch antennas for our transmitter and in our 4x4 receiver array. With our low SWaP-C system we have successfully concluded outdoor range testing, detecting corner reflector targets at a remarkable 10dB above our noise floor …

Dna-Templated Nanofabrication Of Metal-Semiconductor Heterojunctions And Their Electrical Characterization, Chao Pang

Theses and Dissertations

Bottom-up nanofabrication, although still in its early stages with formidable challenges, is considered a potential alternative method to address the limitations of traditional top-down techniques by offering benefits including process simplification, cost reduction, and environmental friendliness. DNA-templated nanofabrication, one of the most powerful bottom-up methods, presents an innovative way to create advanced nanoelectronics. In this approach, nanomaterials with specific electronic, photonic, or other functions are precisely and programmably positioned on DNA nanostructures from a disordered collection of smaller parts. These self-assembled structures offer significant potential for improving many fields such as biosensing, drug delivery and electronic device manufacturing. This dissertation …

Impact Of Legal Systems On Women's Representation In Parliament: Egypt And Tunisia, Omar Rabie

Theses and Dissertations

This thesis explores the disparities in women's representation in the parliaments of Egypt and Tunisia, underscoring the impact of legal systems on political participation. Through a comparative analysis, it identifies key differences and similarities in the legal frameworks of both countries, highlighting how this influences the level of women's parliamentary representation. Egypt, with its relatively low representation of women in Parliament, contrasts with Tunisia's significantly higher levels attributed to progressive legal reforms and quota systems. The research employs a mixed-method approach, combining qualitative and quantitative data to explore the institutional, legal, and cultural factors affecting women's political empowerment. By examining …

Communicating Politics Without Talking Politics: The Role Of The European Union In The Game Of Egyptian Culture., Mona Massoud

Theses and Dissertations

The European Union has provided various democracy aid programs to Egypt since 2013, yet the country’s democracy index has gone down since then[1]. Despite the stagnation in the trajectory of democratization, the EU expanded its democracy promotion aid programs in 2016 to encompass the independent cultural scene in Egypt. This thesis critically examines the reasons for the stagnation of democratization processes in Egypt, a MENA country that continues to be a recipient of the EU’s democracy promotion programs. It argues that there is a discrepancy between the EU’s stated democracy promotion rhetoric and its actions, a factor that …

Psychological Safety Of Pre-Licensure Nursing Students: A Longitudinal, Qualitative Study, Laura Butler

Theses and Dissertations

Background: Previous studies have explored the concept of psychological safety among pre-licensure nursing students; however, the literature is notably sparse on personal descriptions of pre-licensure nursing students' experiences of psychological safety in clinical settings. Individual descriptions of psychological safety will provide added insight and understanding about the elements that shape psychological safety in pre-licensure nursing students. Objectives: This research aimed to longitudinally explore pre-licensure nursing students' experiences of psychological safety during clinical rotations and how their experiences of psychological safety change over time. Methods: This study used a longitudinal, qualitative, descriptive approach. Participants were recruited from a nursing program in …

Mobile Robot Path Planning Optimization Problem Using Multi- Objective Genetic Algorithm, Suresh Ks

Theses and Dissertations

Mobile Robot Path Planning problem (MRPPP) is the most prominent research area employed in different real-time environments. The research domain of robotics offers abundant opportunities for researchers in various engineering fields with different dimensions. The automation of physical movements of the robots with intelligence to make dynamic decisions for interacting with the environment opens up a lot of challenges to the research community.

A variety of approaches are employed to solve the Mobile Robot Path Planning Problem (MRPP), which is to derive a feasible collision-free path to reach the destination from the given starting point by avoiding obstacles. The solution …

Teacher Beliefs And Experiences Addressing Healthy Racial And Ethnic Identity Instructionally Through Social Emotional Learning, Juliana Gutierrez

Theses and Dissertations

Children and youth develop within an ecological context that includes family, peers, and broader social environments including school. Children’s understanding of their ethnic or racial group and the meaning they attribute to belonging in that group is also shaped by interactions in their school environment. Most research on school-based social-emotional learning (SEL) programs has focused on student behavioral and academic outcomes. However, as SEL spreads across U.S. K-12 schools, questions have emerged surrounding how children from diverse racial and cultural groups and unequal opportunity can benefit from universal SEL programs. Using a mixed-methods design, this study explores teachers’ understanding and …

The Use Of Music Therapy To Improve Relationships And Increase Bonding And Connectedness Between Adopted Children And Their Adoptive Parents, Hannah Appleyard

Theses and Dissertations

Background: Children who are adopted may face greater difficulty in developing secure attachment with their adoptive parents. Music therapy is one treatment method that could be used to improve relationships between adopted children and their adoptive parents.Purpose: The purpose of this study was to examine the use of music therapy to improve relationships and increase bonding and connectedness between adopted children and their adoptive parents. Four research questions were addressed in this study: (1) How can music therapy improve the relationship between adopted children and their adoptive parents? (2) What is the frequency of behavioral indicators of bonding and connectedness …

Development Of Quantum True Random Number Generators And Implementation On Ibm Cloud Lab, Vaishnavi K

Theses and Dissertations

Random numbers are the lifeline of any cryptographic operation in modern computing. Quantum mechanics has the intrinsic ability to generate truly random numbers, making it an ideal alternative for scientific applications that require high-quality randomness. Quantum True Random Number Generators (QTRNGs) can yield real random data to replace random-looking periodic sequences. To construct such a random number generator, this work uses the IBM Q Experience platform called Qiskit.

This research focuses on the development and analysis of quantum-based TRNGs along with their prime characteristics. Qubits and quantum gates are the predominant sources of true randomness on quantum platforms. These inherent …

A Study On The Impact Of Psychological Factors On Investment Decisions Of Gen Y - It Employees, Tamil Nadu, Karthikeyan S

Theses and Dissertations

Investments are indeed vital to the economic development of a country. Individual savings and investment patterns play an important role in any economy since they are major components of financial markets. The investment pattern and type of investment products preferred by investors decide the future of the economy. As the Investment decision-making became crucial for individual investors since it can result in significant gains or losses and also has effect on the economy. As a result, each individual investor needs to be so cautious of how they make decisions and what influences them. The people were categorised by the generations …

Community Assistant Role And Its Impact On Academic Performance And Mental Health, Abigail R. Lamanna

Theses and Dissertations

The purpose of this study was to analyze the multifaceted challenges faced by Community Assistants (CAs) within residential life at Rowan University. Through an examination of existing literature, data, and qualitative insights, this study sheds light on how CAs prioritize their academics and mental health within their role. Three research questions guided the study: (1) To what extent does the demanding role of a Community Assistant impact their ability to prioritize their academic responsibilities? (2) To what extent does the demanding role of a Community Assistant impact their ability to prioritize their Mental Health? (3) How can Residential Life Offices …

Combinatorial Studies Of Noble Metal Catalysts For Carbon Utilization, Natalie Leong Page

Theses and Dissertations

Electrocatalysts demonstrate significant promise for sustainable processes like carbon capture and generating recycled carbon fuels which are needed to achieve net zero carbon emissions. However, the commercialization of these processes is limited by several factors, one of which is the high cost of catalysts. The discovery and development of cheaper alternatives has been difficult due to constraints in experimental methodologies, scalability limitations, and a lack of understanding of reaction mechanisms. Within this dissertation is the development of a novel scanning electrochemical system and its implementation for high-throughput data generation from combinatorially sputtered material libraries. Combinatorial Pd-Au alloys were investigated for …

Farmers’ Hiring Decisions Towards Farm Mechanization Services In The Cauvery Delta Zone Of Tamil Nadu, Krishnadas R

Theses and Dissertations

Agriculture is critical to any country's economic development. It not only benefits the primary and secondary sectors but also helps the economy flourish. In addition to ensuring food security, the Indian agricultural sector provides work to huge populations, both directly and indirectly. Traditional farming practices are now overused, labour is no longer abundant, and the power demand is rising steadily. The rapid development of technology has given rise to new opportunities in agriculture (Balafoutis, Evert, & Fountas, 2020). Technology aids agricultural growth by allowing more effective utilization of inputs. It has the potential to make an immense contribution to agricultural …

Existence And Uniqueness Results For Deformable Fractional Differential Equations, Sreedharan R

Theses and Dissertations

Fractional calculus and fractional differential equations are considered to be the valuable tools in modeling many phenomena in various fields of science and engineering. In the literature, many definitions for fractional order derivatives, such as Riemann-Liouville, Caputo, Jumarie, Hadamard, Weyl, and more, were developed to study the fractional differential equations that govern various phenomena in science and engineering. But these definitions have their own limitations, such as derivatives of constants, product of two functions, quotient of two functions, assertion laws, and limiting values of the derivatives at zero and negative numbers.

To overcome the deficiencies, researchers have recently introduced some …

Design And Development Of Contactless Capacitive Coupled Electrodes For Cardiovascular Signal Acquisition, Ramya Lakshmi Vs

Theses and Dissertations

In biosignal acquisition and physiological monitoring, developing advanced electrode technologies is crucial in enhancing signal quality, minimizing interference, and improving overall reliability. One such innovative approach is the utilization of capacitive-coupled electrodes, a cutting-edge solution that addresses some of the challenges associated with traditional electrodes in biosignal recording.

Capacitive-based sensors have become prominent in physiological signal measurement over the past decade. The electric field from the external affects both the human body and the electrode. The primary aim while designing the capacitive electrode is to maximize the signal-to-noise ratio. Hence, we introduce shielding and guarding techniques to improve the signal-to-noise …

An Exploration Of Power Relations In Select Plays Of Girish Karnad A Foucauldian Perspective, Srinivasa Yogananda Rao Netrakanti

Theses and Dissertations

The present study, ‘An Exploration of Power Relations in Select Plays of Girish Karnad: A Foucauldian Perspective‘ aims to study power relations among the different characters in the three plays of Girish Karnad viz., Tughlaq, Naga-Mandala and Tale- Danda through Foucault's three modalities of power viz., bio-power, disciplinary power and sovereign power.

Chapter 1, Introduction gives a bird-eye view of Foucauldian concepts of power followed by the three modes of objectification and dividing practices, subjects and power relations, inter-connectedness between power and knowledge, panopticism, bio-power and discourses, the application of Foucauldian theories of the three major powers. Next, a Girish …

Experimental Investigation On Downstream Characteristics Of S809 Airfoil With And Without Passive Flow Control Device, Mano S

Theses and Dissertations

The wake behaviour of extended flat plate (EFP) and serration in the trailing edge of S809 airfoil is presented in this experimental study using wind tunnel testing for several freestream turbulence intensities (TI). The clustering wind turbines in wind parks has recently been an important problem, as it involves determining the number of wind turbines to be installed to increase the power output.

The downstream wake characteristics are one of the most significantparameter that influence the performance of subsequent wind turbines.These wind turbine blades are made up of airfoil cross sections and need to be studied in detail. A series …

Investigating The Impact Of Climate Change On Evapotranspiration Using Modeling, Faten Waheed

Theses and Dissertations

The available water resources are at risk due to climate change and the increasing water demand. Evapotranspiration is a very important element in water cycle. Evapotranspiration is perceived as a linking mechanism between the surface of the land and the atmosphere. Therefore, investing appropriate approaches to estimate evapotranspiration and the implication of climate change on evapotranspiration and available water resources are of great importance for better water management and food security. Penman-Monteith (PM) equation is considered as one of the most widely used equation for estimating ETo. It is also one of the most complex energy balance equations requiring detailed …

Design Of An Integrated System For The Protection Of Patient Health Information In Medical Images, Manikandan V

Theses and Dissertations

Electronic clinical data such as Patient Health Information (PHI) is stored by adapting the Digital Imaging and Communications in Medicine (DICOM) standard to build an integrated healthcare system where medical images from various sources can be interlinked. The healthcare industry poses a threat from hackers, and the information fetched by hackers provides more money than the other information stolen. This thesis deals with designing and analysing encryption algorithms, key generation mechanisms, and information-hiding schemes for protecting PHI.

Sensitive multimedia information of all forms is encrypted, with a key, before storage and transmission to protect it from illegal use and manipulation …

Examining How Artistic Expression In The Classroom Can Increase Students' Academic Performance And Understanding Of Course Material, Jake Taylor Marrazzo

Theses and Dissertations

This qualitative research study examined how artistic expression in the classroom can increase students’ academic performance and understanding of course material. This study consisted of graduate students in the Masters of Arts in Higher Education program at Rowan University, during the Fall/Spring 2023-2024 semesters, enrolled in at least one of the following courses: Crisis Management, Higher Education in America, and The College Student. The study utilized an artistic expression activity, painting, in connection with participants' course material and readings to understand the benefits of artistic expression on student success in the classroom. Some findings of this study show that artistic …

Intervening For A Better Social Life? A Comparative Analysis Of Psychological Egoism And Aristotle As Alternate Foundations For Applied Social Psychology's Aims, Samuel D. Major

Theses and Dissertations

The scientific aim which distinguishes applied social psychological research from basic social psychological research is that of using social psychological theory to develop interventions meant to rectify social and practical problems in hopes of fostering a flourishing or thriving social sphere. In developing their interventions, however, many applied social psychologists have failed to consider their pre-investigatory philosophical commitments, commitments which imply the kind of flourishing social life that may come as a result of interventions rooted in them. The aim of this dissertation is to invite applied social psychologists to consider if their frequently noted, yet often unexamined, commitment to …

Design And Implementation Of A Machine Learning Predictive Model For Crop Yield In Indoor Vertical Hydroponics Farming, Emna Bouzid

Theses and Dissertations

To optimize agricultural practices and address water scarcity, this work introduces Vertical Hydroponics and Machine Learning (ML) to smart agriculture, using data from Internet of Things (IoT) sensors to enhance crop production in low and medium-income countries, particularly Tunisia's, hydroponic farms. This research is an innovative approach to enhancing crop production within indoor vertical hydroponic systems by utilizing different ML predictive models and assessing their performance. This part was done at UALR while the data collection was done at MedTech, with 21 basil plants. This study compares Linear Regression, Long Short-Term Memory (LSTM), and Deep Neural Networks (DNN) for precision …

The "Essence" From Within: A Phenomenological Study Examining The Lived Experiences Of Racial And Ethnic Minoritized Women (Raemw) Senior Level Administrators At 4-Year Predominately White Institutions (Pwis) In The United States (U.S.), Felicia Crockett

Theses and Dissertations

The purpose of this study was to explore the experiences of senior level RAEMW administrators who work at 4-year PWIs in the U.S. and analyze the impact of institutional environments on their success. The theories that guided this study were: Crenshaw’s (1994; 1989; 2015) intersectionality framework and four tenets of CRT which include counter-storytelling, the permanence of racism, interest convergence, and intersectionality (Hiraldo, 2010, 2019). This study was guided by the three research questions: 1) How do RAEMW senior level administrators describe their experiences navigating higher education, 2) How do senior level RAEMW administrators describe the impact of institutional environments …

Beyond Urban Development: The Political Economy Of The Decision To Build A New Administrative Capital [Nac], Arsany Medhat

Theses and Dissertations

Following major societal upheavals, regimes often embark on grandiose infrastructure projects, particularly new capital cities. This thesis delves into the political-economic motivations behind such seemingly monumental undertaking, taking the case of Egypt's New Administrative Capital (NAC) as its prime example. Through meticulous analysis, it argues that three key drivers—legitimization, legibility, and clientelism—underpin this decision, ultimately fostering a process of power consolidation. Legitimization: The NAC serves as a potent symbol of a "new era," offering the post-upheaval regime a platform to showcase its modernity, efficiency, and commitment to progress, thereby bolstering its legitimacy in the eyes of both domestic and international …