Digital Commons Network^™

Heat Transfer In Microchannel Compact Heat Exchanger, Mohammed Al-Khateri

Theses

This study aims to investigate heat transfer in a miniaturized channel heat exchanger and effectiveness for given real-life design. The main objective of the study is to develop and build a high-performance heat exchanger for thermal management in automotive application using typical radiator manufacturing techniques. This research uses experimental and model-based investigation. It conceptualizes the Miniaturized Channel Heat Exchangers (MCHX) model-based study for demonstrating the design of miniaturized channel heat exchangers, manufacture, and study the heat exchanger effectiveness by validating the developed mathematical model experimentally. The proposed design of the MCHX is to use extruded tubes containing miniaturized channels as …

Comparing Knowledge About Differential Diagnosis Of Childhood Apraxia Speech And Phonological Development Between Communication Disorders And Sciences Graduate Students, Bayley Eubanks

Theses

AN ABSTRACT OF THE THESIS OFBayley Eubanks, for the Master of Science degree in Communication Disorders and Sciences presented on March 30, 2023, at Southern Illinois University Carbondale. TITLE: COMPARING KNOWLEDGE ABOUT DIFFERENTIAL DIAGNOSIS OF CHILDHOOD APRAXIA SPEECH AND PHONOLOGICAL DEVELOPMENT BETWEEN COMMUNICATION DISORDERS AND SCIENCES GRADUATE STUDENTSMAJOR PROFESSOR: Dr. Valerie Boyer The purpose of the study was to gather information from current graduate students by a brief in-service on the differential diagnosis of CAS and PD in speech-language pathology pre-professionals. The distinctions between CAS and other speech sound disorders, such as PD, must be made clear to pre-professional SLPs …

Appearances Are Deceiving: Long-Distance Subject Anaphors And Phasal Binding Domains, Fahad A. Almalki

Theses

An unusual behavior of anaphors is to occur in embedded subject positions and bebound across a finite clause boundary by a matrix subject. This thesis, however, demonstrates that such constructions exist in Malki Arabic, besides other languages. First, this thesis shows that the clause size of the embedded clause in which subject anaphors are allowed is CP and not always a TP. Second, in light of current reductionist approaches to binding domains of the classical binding theory to phase theory, a cross-clausal binding relation bears issues to those approaches, as a long-distance antecedence relation crosses a phase boundary. Taking long-distance …

A Current To Digital Converter For Power Signature Generation Applications, Arunima Aindrila Badhon

Theses

The security of IoT devices is significantly increasing as a consequence of the widespread usage of the Internet of Things (IoT) in applications that include confidential data and implementation of important control decisions using those data. Because of their cheap cost and computational limitations, IoT devices confront significant obstacles in safeguarding. Among the variety of devised tactics analyzing power is one of the most potential strategies to address such challenges. However, due to the size, cost, and power consumption of power analysis devices, this strategy is not suited for many IoT applications. In this thesis, two techniques for collecting power …

Evaluating The Performance Of Process-Based And Machine Learning Models For Rainfall-Runoff Simulation With Application Of Satellite And Radar Precipitation Products, Amrit Bhusal

Theses

Hydrology Modeling using HEC-HMS (Hydrological Engineering Centre-Hydrologic Modeling System) is accepted globally for event-based or continuous simulation of the rainfall-runoff operation. Similarly, Machine learning is a fast-growing discipline that offers numerous alternatives suitable for hydrology research's high demands and limitations. Conventional and process-based models such as HEC-HMS are typically created at specific spatiotemporal scales and do not easily fit the diversified and complex input parameters. Therefore, in this research, the effectiveness of Random Forest, a machine learning model, was compared with HEC-HMS for the rainfall-runoff process. In addition, Point gauge observations have historically been the primary source of the necessary …

Multi-Species Trophic Response In Tributaries Of The Ohio River Along A Gradient Of An Invasive Planktivore, Justin Kowalski

Theses

1. Aquatic invasive species often have a gradient of abundance along connected systems as invasion occurs. Invading species effects on native species may not be apparent when the species first colonizes a new area but as abundance of the invader increases they may have detrimental effects to native ecosystems even when not fully established. 2. A gradient of Silver Carp (Hypophthalmichthys molitrix) abundance in the Ohio River exists as invasion has been slowed by the many navigation dams that exist on the river. I examined how the isotopic niche of four native species differed along the Silver Carp gradient in …

Study Of Advanced Friction Material For The Automotive Industry, Manisha Upreti

Theses

Manufacturing/casting defects and the corroding nature of grey cast iron require the attention of researchers to search for a better alternative to grey cast iron rotors. The increasing demand and market of electric, hybrid vehicles draw the attention of scientists and car manufacturers to conduct more research to find suitable and sustainable braking material that can overcome the issues related to grey cast iron rotors brakes. A modern alternative for grey cast iron rotors may be 3D-printed stainless steel rotors. The promising future of 3D printing technology has propelled the manufacturing industry into a new era of customized fabrication. Thus, …

Electrochemical Investigation Of Copperzirconium Based Metallic Glass Cu₅₁Zr₃₀Hf₁₄Ag₅, Tamim Mohammad Ahmad

Theses

This thesis is concerned with the electrochemical investigation of the copper-zirconium

based metallic glass Cu₅₁Zr₃₀Hf₁₄Ag₅. Studying the corrosion behavior of the novel melt-spun metallic glass ribbons contributes to further research on the possibility of building future bio-implants. The objectives of this thesis are to synthesize the metallic glass ribbons which are free from cytotoxic elements using melt spinning technique, verify their amorphous nature using X-ray diffraction method, study the corrosion behavior using Potentiodynamic polarization and Electrochemical Impedance Spectroscopy in different acidic, neutral and basic solutions, and finally examine the surface morphology of …

Invariants Of 3-Braid And 4-Braid Links, Mark Essa Sukaiti

Theses

In this study, we established a connection between the Chebyshev polynomial of the first kind and the Jones polynomial of generalized weaving knots of type W(3,n,m).
Through our analysis, we demonstrated that the coefficients of the Jones polynomial of weaving knots are essentially the Whitney numbers of Lucas lattices which allowed us to find an explicit formula for the Alexander polynomial of weaving knots of typeW(3,n).
In addition to confirming Fox’s trapezoidal conjecture, we also discussed the zeroes of the Alexander Polynomial of weaving knots of type W(3,n) as they relate to Hoste’s conjecture. In addition, …

The Impact And Severity Of Non-Covid-19 Illnesses During Covid-19 Pandemic, Hanadi Alhammadi

Theses

The Covid-19 pandemic is a global crisis that occurred around the world and resulted in a large number of infections and deaths. As of September 2020, it was estimated that the Covid-19 pandemic had killed 976,000 people worldwide, healthcare facilities were burdened with containing this pandemic and made great efforts to treat and protect people, but in turn the focus on containing the pandemic led to many side effects, one of these effects is death from causes other than Covid-19. During the pandemic, people were afraid to visit hospitals to avoid contracting the COVID-19 virus, and hospitals were under great …

An Examination Of The Association Between Microaggression And Select Disordered Eating Behaviors Within The Transgender And Non-Binary Community, Dee Murray

Theses

Background: Microaggressions experienced by transgender and non-binary (TNB) individuals differ from those experienced by non-TNB individuals. Limited research has explored the association between TNB-focused microaggression and disordered eating behaviors. Methods: An online survey consisting of validated instruments was administered to respondents (N=194) over a 96-day period. The instruments included the Satter Eating Competence Inventory (ecSI 2.0TM), Three Factor Eating Questionnaire (TFEQ-18), Cohen’s Perceived Stress Scale (PSS-14), and the Transgender Discrimination Scale (TDS-21). Associations between characteristics were assessed with the Pearson correlation coefficient. Results: Microaggression was positively associated with negative eating behaviors such as cognitive restraint (r= 0.41; p

Investigating The Impact Of Baselines On Integrated Gradients For Explainable Ai, Ajay Shewale

Theses

Deep Neural Networks have rapidly developed over the last few years, demonstrating state-of-the-art performances on various machine learning tasks such as image classification, natural language processing, and speech recognition. Despite their remarkable performance, deep neural networks are often criticized for their need for more interpretability, which makes it difficult to comprehend their decision-making process and get insights into their workings. Explainable AI has emerged as an important area of study that aims to overcome this issue by providing understandable explanations for deep neural network predictions. In this thesis, we focus on one of the explainability methods called Integrated Gradients (IG) …

Combating Systemic Racism With Truth Commissions, Katherine E. Miles

Theses

The main form of justice practiced in the United States when it comes to criminal proceedings and individual wrongdoings is a form of justice called Retributive Justice. Retributive justice is committed to following these three principles, 1: that those who commit certain kinds of wrongful acts, morally deserve to suffer an equivalent punishment; 2: that it is intrinsically morally good—good without reference to any other goods if some legitimate punisher gives them the punishment they deserve; and 3: that it is morally impermissible to punish the innocent intentionally or to inflict disproportionately large punishments on offenders. From the three principles …

A Graph-Based Approach To Studying The Spread Of Radical Online Sentiment, Le Nguyen

Theses

The spread of radicalization and extremism through the Internet is a growing problem. We are witnessing a rise in online hate groups, inspiring the impressionable and vulnerable population towards extreme actions in the real world. Though the body of research to address these issues is growing in kind, they lack a key understanding of the structure and behavior of online extremist com- munities. In this thesis, we study the structure and behavior of extremist online communities and the spread of hateful sentiments through them to address this gap in the research. We propose a novel Graph-Based Approach to Studying the …

Moodify, Jiaqi Liu

Theses

Abstract Degree: Master of Fine Arts Program: Visual Communication Design Authors Name: Jiaqi Liu Advisors Name: Mike Strobert; Adam Smith Thesis Title: Moodify This paper proposes a research and solution to address the major psychological risk factor of pathological rumination, which can lead to depression, anxiety, and other chronic conditions. Rumination and worry are identified as key components of mental illnesses and may be underpinned by the same cognitive process. This paper proposes a combined approach of Cognitive Bias Modification (CBM) and Mindfulness-Based Cognitive Therapy (MBCT) treatments to reduce worry and/or rumination. The proposed solution aims to assist users in …

Állo (Neutral - “Other”), Alex Jarus

Theses

In a balancing act between fear and curiosity, I have created a series of wood-based artifacts to serve as vessels in which I may pose questions to myself. At the core of each artifact is a sphere primarily produced from a log allowed to dry and fracture naturally, capturing a snapshot of change in motion. Through the creation of these vessels, I attempted to better understand how I define what it means for me to be queer and non-binary. Although these artifacts are contemporary works, I have removed them from a particular known visual time in hopes of providing a …

Redesign A Pet Bottle: Creating Possibilities For Future Recycling, Shen Liu

Theses

As a case study, I evaluated the difficulties faced by millennials in recycling PET bottles and their potential expectations for recycling systems. My design includes a visually appealing, compressible PET bottle with a delicate appearance. It helps consumers save four-fifths of their storage space during recycling. That means consumers can easily carry it around until they are ready to recycle. This change is more likely to improve the storage efficiency of bottles and the possibility of bottle recycling. In addition, designing a brand is an important step in building customer trust in sustainable design, helping to connect consumers with their …

When It Clicks, Mitch Goldstein

Theses

“When It Clicks” examines my relationship to the chaos, discomfort, and anxiety of traveling through life, and the moments of calm, understanding, and clarity that intersect and juxtapose with my journey — those moments when things seem to click together and allow me to see a path through the complexities and ambiguity of life.

On Groundless Fears, Justin Aungst

Theses

I often have dreams in which I’m chased or followed. Sometimes there’s an urgent life-threatening pace where I’m running from a pursuer. Often, it’s slower and less immediate, and in some cases, I don’t turn around to see if someone is behind me. The feeling of being followed is enough to keep me moving. On Groundless Fears is a photographic series that focuses on subconscious anxieties where the root causes are not readily apparent to us. Untethered from reality, these fears loom and seep into the mundane. The setting of an American suburb is meant to be familiar and unsuspecting; …

A Study On The Design Of Public Speaking Preparation And Social Anxiety In Young People, Jacqueline Qiu

Theses

Modern society is demanding more and more from young people. Young people need expertise and speech skills to succeed professionally. These skills need to be good enough to be appreciated and recognized in public presentations. However, most young people need clarification when it comes to speaking. They must integrate their expertise, presentation slides efficiently, and other speech skills so that the audience or leaders can comprehend. The people who are the best at public speaking become the most successful. This paper concerns a study on speech experience, presentation skills, and presentation effectiveness as indicators to improve presentations. This project was …

Can You Escape Agency By Falling Asleep? Killing Two Constitutivists’ Problems With One Stone, Henrique Cassol Leal

Theses

In this paper, I present a new problem to constitutivism (the idea that agency grounds our practical norms) and argue that the solution to this problem also solves Enoch’s shmagency question. The problem I bring forth involves the fact that agency seems to be metaphysically escapable, such as when we fall asleep, or get hit by a truck. If this is correct, then we allow for perplexing cases in which a wrongdoing is done, but no agent is responsible, nor is any norm broken—for, what grounds responsibility and norms, our agency, has disappeared. I thus argue for a notion of …

Physiological Signals And The Effects On Prediction Of Future Blood Glucose Values In A Deep Learning Model, Andrew Rearson

Theses

Diabetes is a chronic disease that currently has no cure. However, in the last decade, life- changing technology for people with diabetes has advanced primarily due to new sensors that continuously measure glucose. Individuals with diabetes manually use this data for diabetes management, but the artificial intelligence community has seen the increase in data as an opportunity to work towards automating diabetes control. The project developed deep-learning neural networks incorporating blood glucose measurements measured by a continuous glucose monitor (CGM) and physical activity data from a wearable health sensor (WHS) to predict future glucose values and compare how different configuration …

Intentional Passing And Closeted Agency, Logan Bohlinger

Theses

It is characteristic of closeted queer agents that they behave so as to pass as heterosexual, cisgender, or otherwise as non-queer. Thus, I take it that an action-theoretic account of the phenomenon of straight-passing is essential to developing an action-theoretic account of the practical disposition of being “in the closet.” To progress towards a broader account of closeted queer agency, I endeavor in this thesis to clarify the patterns of practical reasoning involved in straight-passing with an aim to demonstrate that straight-passing, in all its forms, is something that a queer agent can intentionally do. However, a queer agent often …

Implementation Of Model-Free Sliding Mode Control On A Multi-Input Multi-Output System, Walker Hare

Theses

Bioinspired flight serves to balance the advantages of fixed-wing flight as well as traditional rotary systems. A flapping wing aerial system exhibits high maneuverability at low speeds like a rotary system and the higher efficiency that fixed-wing systems exhibit in forward flight. A method to actuate a flapping wing structure is using piezoelectric elements. Using flapping wings to perform aerial maneuvers and facilitate stable flight will require precise control of the piezoelectric elements and control surfaces. The focus of the research is the construction of a feedback control platform for the flapping wing aerial system. For any type of feedback …

Hopelessness And Spiritual Well-Being In Persons With Hiv Infection, Kevin M. Gulliver

Theses

The purpose of this study was to examine the relationship between hopelessness and spiritual well-being in a population of persons diagnosed to be Human Immunodeficiency Virus (HIV) positive. Demographic variables were examined to determine their potential relationship to hopelessness and spiritual well-being. The Neuman Systems Model was used as the conceptual framework for the research.

Ecomves: Enhancing Comves Using Data Piggybacking For Resource Discovery At The Network Edge, Sanzida Hoque

Theses

Over the past few years, Augmented Reality (AR) and Virtual Reality (VR) have emerged as highly popular technologies that demand rapid and efficient processing of data with low latency and high bandwidth, in order to enable seamless real-time interaction between users and the virtual environment. This presents challenges for network infrastructure design, which can be addressed through edge computing. However, edge computing also presents challenges, such as selecting the appropriate edge server for computing tasks in dynamic networks with rapidly changing resource availability. Named Data Networking (NDN) is a potential future Internet architecture that could provide a balanced distribution of …

Care: Towards Customized Assistive Robot-Based Education, Nafisa Abdul Razak Maaz

Theses

Purpose of the Study The aim of this paper is to propose a solution for enhancing the learning experience of elementary school students by combining Artificial Intelligence (AI) and robotics in education. Our AI-powered system aims to classify students according to their intellectual abilities and offer personalized educational materials to assist their progress. Summary We propose using a personalized tutor robot to aid students in their learning. The robot categorizes students into three groups – High-Ability Student (HAS), Average-Ability Student (AAS), or Low-Ability Student (LAS) - based on their performance, facial expressions, and subjective feedback. The robot then displays educational …

Student Grade Prediction Using Machine Learning Methods, Hameed Al-Obaidi

Theses

This capstone project addresses the challenge of students' lack of awareness regarding their academic performance and potential grade declines throughout the semester. The project aims to develop a predictive model that offers students timely warnings about their predicted grades, enabling them to take proactive measures to improve their academic performance. Utilizing the CRISP-DM (Cross-Industry Standard Process for Data Mining) methodology, the project analyzes a comprehensive dataset comprising student demographics, curriculum history, and grades in various subjects. The model undergoes rigorous evaluation and validation to ensure its effectiveness in predicting students' academic outcomes accurately. The findings reveal that the linear regression …

Facility Management System, Abdulla Talib Al Malik

Theses

Businesses nowadays are suffering due to high costs associated with energy consumption, maintenance, and overall lack of monitoring of assets. The downside of this is the negative impact high energy consumption has on the environment in terms of carbon emissions. To address this concern, this paper proposes a Facility Management System that details how a business can link all their assets to one central location for effective monitoring. This will allow any business to ensure that their maintenance costs are managed appropriately, all asset operations are in line with demand and not operating outside of when it Is required, and …

End Of Ages: The End Of The Middle Ages And The Problem Of Periodization, Daniel Buck

Theses

Abstract