Digital Commons Network^™

Review Of Tethered Unmanned Aerial Vehicles: Building Versatile And Robust Tethered Multirotor Uav System, Dario Handrick, Mattie Eckenrode, Junsoo Lee

Faculty Publications

This paper presents a comprehensive review of tethered unmanned aerial vehicles (UAVs), focusing on their challenges and potential applications across various domains. We analyze the dynamic characteristics of tethered UAV systems and address the unique challenges they present, including complex tether dynamics, impulsive forces, and entanglement risks. Additionally, we explore application-specific challenges in areas such as payload transportation and ground-connected systems. The review also examines existing tethered UAV testbed designs, highlighting their strengths and limitations in both simulation and experimental settings. We discuss advancements in multi-UAV cooperation, ground–air collaboration through tethers, and the integration of retractable tether systems. Moreover, we …

Automated Beam Stitching And Segmentation Procedure For Space Division Multiplexing Optical Coherence Tomography Angiography, Andrew J. Song

McKelvey School of Engineering Graduate Student Theses & Dissertations

Optical Coherence Tomography Angiography (OCTA) has revolutionized ophthalmic imaging and its capability to produce high-resolution 3D maps of the retinal microvasculature is instrumental in diagnosing retinovascular diseases such as diabetic retinopathy and age-related macular degeneration; However, the existing OCTA devices often suffer from slow acquisition speed limiting the field-of-view (FOV) in the clinic. Space Division Multiplexing OCTA (SDM-OCTA) address these limitations by acquiring multiple beams simultaneously, achieving manyfold faster acquisition speeds than single beam OCTA systems. But as each beam contains only part of the image, SDM-OCTA requires additional processing steps to produce coherent wide-field images. Though manual stitching and …

Go Cry About It!, Grace C. Ryder

MFA in Visual Art

I have always been a crier. I have always felt deeply and intensely. Goodbyes, heartbreak, joy, and empathy—I’m grateful to feel it all, even when it hurts. My artwork often investigates vulnerable topics through making the personal public using self archival and diaristic elements. Inspired by my familial and romantic relationships, I explore my connections to other people and how I memorialize and honor them. My painted works often depict ephemeral objects, establishing their value through the use of oil paints while my sculptures are often exaggerated, oversize forms, emphasizing the passage of time.

From January 1st to December 31st …

The Role Of The Cgas-Sting Sensing Pathway In Hiv-1 And Sars-Cov-2 Infections, Jenna Eve Eschbach

Arts & Sciences Graduate Student Theses and Dissertations

Human immunodeficiency virus type I (HIV-1) and severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) are the causative agents of two unique pandemics. For a successful replication cycle to occur, viruses need to strategically outmaneuver host cell defenses. The innate immune system is the first line of defense against viruses and other pathogens. Host pattern recognition receptors detect viral nucleic acids and initiate signaling cascades that culminate in the expression of interferon (IFN) and transcriptional upregulation of antiviral interferon-stimulated genes (ISGs). This dissertation examines the involvement of the innate immune response during early, post-entry steps of HIV-1 and SARS-CoV-2 infection. During …

Partially Supervised Reinforcement Learning For Gps-Denied Navigation, Ethan Weilheimer

McKelvey School of Engineering Graduate Student Theses & Dissertations

Navigating dynamic environments is a key challenge for autonomous agents, yet most existing research focuses on 3D settings or settings where the agent has full access to relevant semantics. In this work, we propose a learning framework for aerial navigation in the presence of changing dynamics and limited positional information. Specifically, we consider a drone navigation task where a drone at one time has access to GPS location information, which it has now lost and needs to navigate in the same area but at a future time with no GPS signal and differing transition dynamics. To address this, we introduce …

Adaptive Noise Estimation And Denoising With Deep Learning For Nmr Spectroscopy, Naveen Asokan

McKelvey School of Engineering Graduate Student Theses & Dissertations

Nuclear Magnetic Resonance (NMR) spectroscopy is a powerful analytical technique widely used for molecular structure elucidation in chemistry, biology, and medicine. However, spectral accuracy is often degraded by noise—particularly in low acquisition time settings—resulting in reduced resolution and obscured chemical features. While traditional noise reduction techniques such as signal averaging can improve spectral quality, they require longer acquisition times, limiting their utility in real-time and high-throughput applications.

This thesis presents a deep learning-based denoising framework designed to enhance the quality of complex-valued NMR spectra. The proposed model, built upon a U-Net architecture, incorporates both real and imaginary components of the …

Generic Fpga Preprocessing For Astrophysics Instruments In Hls, Qinzhou Song

McKelvey School of Engineering Graduate Student Theses & Dissertations

FPGAs are widely deployed on high-energy astroparticle physics instruments to preprocess large volumes of streaming data from various sensors. Increasingly, these deployments are finding their way to space-borne instruments, where constraints on size, weight, and power (SWaP) require careful balancing of speed and resource utilization. Although telescope designs vary widely, they often share common preprocessing elements, including channel-level readout, pedestal subtraction, waveform integration, and zero suppression from front-end ADCs, as well as identification and centroiding of signal islands across groups of multiple channels. High-Level Synthesis (HLS) tools allow these designs to be expressed at a conceptual level, which automates a …

Training Safety Control Filters Using High-Dimensional And Un-Labeled Data, Yuxuan Yang

McKelvey School of Engineering Graduate Student Theses & Dissertations

Synthesizing control policies that preserve the safety of autonomous systems is a challenge that remains to be solved. Towards that goal, control barrier functions (CBFs) have been developed as mathematical constructs that can be used in real-time to correct safety-violating nominal actions to ones which preserve the safety of control systems. However, synthesizing CBFs using correct-by-construction methods has not been scalable. Instead, recent research has proposed data-driven approaches for learning CBFs in the form of neural networks. Two main challenges face such approaches: (1) labeling states as unsafe or safe ones requires the knowledge of the states in the backward …

The Kinship Of Creatives, Saba Saif Ur Rehman

MFA in Illustration & Visual Culture

This research essay contends that artists and creative individuals must recognize their agency in shaping societal narratives, particularly during times of technological and political upheaval. The essay draws on the insights and contributions of visionaries like Walter Benjamin, Ursula K. Le Guin, and Tomm Moore to emphasize the power of imagination and creativity in addressing real-world issues. It argues that previous technological advances have often reinforced hierarchical and oppressive systems, benefitting a select few while neglecting the masses. As we enter the fourth Industrial Revolution, this essay calls the artists to reclaim their tools from being co-opted for exclusionary and …

Adler, Asterios, & Maus, Crystal Ganatra

MFA in Illustration & Visual Culture

Adler, Asterios, & Maus examines how small visual decisions in illustrations make up a language. And when the dialect changes from the predominant one in a graphic novel, something novel happens. A scene or specific quality gets the spotlight. It also explores how these visuals tie to Adlerian psychology and El Refaeian ideas on autobiography, behavior, and emotion. It identifies through two interesting grpahic novels- Asterios Polyp by David Mazzuchelli and Maus by Art Spiegelman- how these ideas can be used to understand ourselves. It intensely zeroes in on specific moments of visual language shift. Some of these change range …

Comics As Confrontation : A Case For Breaking Silence Around Sexual Abuse In Comics, Manimanjari Sengupta

MFA in Illustration & Visual Culture

In this essay I will provide an overview of the socio-cultural and legal attitude towards sexual violence in India, as evidence of the need for bringing survivor’s narratives out into public view. I will look closely at Indian comic artist Shromona Das’s Naming and Shaming (2018) , American artist Phoebe Gloeckner’s A Child’s Life and Other Stories (1998), and my own comic Feral (2025), to elucidate the ways in which comics are a potent medium for survivors to confront, not only our own memories by stringing together a sequential narrative, but also the audience, with the visualization of a lived …

Strategic Reactor Allocation For Deadlock-Free Execution, Jeevan Sivamohan

McKelvey School of Engineering Graduate Student Theses & Dissertations

As it becomes harder to increase the computation power of a single machine, we are turning towards parallel and distributed systems to extract additional performance by breaking down the problem into pieces and solving it simultaneously. While this provides a great opportunity for increased performance,e it comes with additional problems not present in the sequential approach. One such problem is deadlock. Deadlock is defined as the state in which program execution stalls because the system has run out of resources to manage and execute the program properly, or there exists some circular dependency in the data between parallel or distributed …

Structural Controllability For Switched Linear Ensemble Systems, Yi Li

McKelvey School of Engineering Graduate Student Theses & Dissertations

No abstract provided.

Experimental Evaluation Of Resource Allocation To Organelles In Eukaryotic Cells, Ronan Hanley

Senior Honors Papers / Undergraduate Theses

Among the hallmarks of the eukaryotic cell is its organization into spatially defined sub-compartments known as organelles. Organelles provide optimized environments for otherwise incompatible biochemical reactions within the cell. It has been shown that there is significant variation in the properties of organelles in a cell, and that cells have access to a limited pool of resources that they can allocate to organelles. This begs the question: by what principles do cells dictate how resources are allocated? To begin to explore this question, we look at resource allocation in S. cerevisiaefrom two perspectives. First, we use a combination of …

Soft, Adhesive Dry Electrodes For Improved Electrophysiological Signal Acquisition With Motion Tolerance And Long-Term-Recoverability, Ryan Andersen

McKelvey School of Engineering Graduate Student Theses & Dissertations

Soft electronic devices and sensors have seen substantial interest devoted to them for the purpose of recording and analyzing various electrophysiological signals including for the use of electrocardiography (ECG), electromyography (EMG), and electroencephalography (EEG). Dry electrodes specifically have enormous potential compared to traditional commercial electrodes for long-term, real-time monitoring of biopotential activity. Gel-based commercial electrodes have notable drawbacks such as limited flexibility, skin irritation that decreases comfort, inconsistent signal quality due to poor conformal contact, and degraded signal quality over long-term monitoring due to drying out.

Herein, we report a soft, adhesive dry electrode that utilizes chemical additives to promote …

New Signal Identification Algorithms For Enhanced Gamma-Ray Burst Detection In The Advanced Particle-Astrophysics Telescope, Longhao Huang

McKelvey School of Engineering Graduate Student Theses & Dissertations

This work presents a series of algorithmic advancements aimed at improving photon signal identification and gamma-ray burst (GRB) source localization for the Advanced Particle-astrophysics Telescope (APT) and its Antarctic Demonstrator (ADAPT). These advancements are aimed at identifying valid signals in noisy environments. Previous methods failed to effectively distinguish real photon signals from noise, prompting us to develop a new photon detection algorithm with peak counting. Instead of integrating all waveform data in the observation window, we use multiple thresholds to accurately identify single-photon and two-photon arrival events, minimizing false counts due to amplifier noise. The new peak count algorithm also …

The Role Of Piezo1 In Mediating Chondrocyte Cell Signaling And Senescence, Sophie Gretler Paradi

McKelvey School of Engineering Graduate Student Theses & Dissertations

Osteoarthritis (OA), the leading cause of disability, is driven by articular cartilage degeneration and inflammation. Mechanosensitive ion channels PIEZO1 and PIEZO2 have been implicated in OA progression via calcium signaling in chondrocytes. This study investigates the role of conditional Piezo channel knockout (cKO) in modulating calcium signaling and senescence in OA, particularly under the supra-physiologic inflammatory condition of a high-fat diet (HFD). Using calcium imaging, we found that Piezo1 cKO and dual Piezo1/2 cKO significantly reduced Yoda1-induced calcium signaling, while Piezo2 cKO alone had no effect. Under HFD conditions, Piezo1 cKO showed a non-significant trend toward reduced calcium influx, potentially …

Learning-Based Mri Reconstruction Method With Coil Sensitivity Estimation And Prior Adaptation, Haoyu Zhang

McKelvey School of Engineering Graduate Student Theses & Dissertations

Magnetic Resonance Imaging (MRI) reconstruction from undersampled multi-coil k-space data is a challenging inverse problem, typically relying on fixed priors such as precom puted coil sensitivity maps. To improve adaptability, we propose a novel framework named Learning-based Coil sensitivity Estimation and Prior Adaptation (LCEPA). LCEPA formu lates reconstruction as a bilevel optimization, using a Joint Deep Equilibrium (Joint DEQ) model in the inner loop to simultaneously estimate images and coil sensitivity maps, while the outer loop adaptively fine-tunes image and coil priors using supervised data. Experiments demonstrate that LCEPA surpasses state-of-the-art methods in terms of PSNR and SSIM, showcasing robust …

Comparative Analysis Of Intrinsic Reward-Based Reinforcement Learning Algorithms, Chengyu Li

McKelvey School of Engineering Graduate Student Theses & Dissertations

Reinforcement learning agents often struggle in tasks with sparse or delayed rewards, since they receive little guidance about which actions to pursue. This thesis investigates how adding intrinsic rewards can help address that issue. We focus on three main methods: Count-Based bonuses, where states are hashed and infrequent states receive higher rewards; Random Network Distillation (RND), where a predictor network learns to match the output of a fixed random target; and the Intrinsic Curiosity Module (ICM), which uses an inverse and a forward model to highlight transitions the agent cannot yet predict.

We implement these approaches under a single Proximal …

Firing The Canon: Queer Representation In The Magical Girl Genre, Lena C. Humble

MFA in Illustration & Visual Culture

This research delves into the impact queer representation in the shoujo (Japanese for young girl) genre has on audiences. More specifically, the “Magical Girl” (a subgenre of shoujo) genre’s main focus is about ordinary girls whose lives are drastically changed when they are given magical powers. One of the major plot points of magical girl media is how these girls find balance with their ordinary lives with their magical alter egos, and their attempts to keep these lives separate. Much of this media follows a small group of girls, who tend to build deeply emotionally intimate relationships as they share …

The Dragon's Eye: A Quest For Tabletop Role-Playing's Visual Culture, Benjamin Kent

MFA in Illustration & Visual Culture

The world of Tabletop Role-Playing Games (TRPGs) has always been defined and dominated by Dungeons & Dragons (D&D), the game that pioneered the industry in the 1970’s. Meanwhile during this time, independent games have consistently innovated new ways of utilizing this highly creative field both in contrast and in concert with D&D’s growth. As a decade-long player and developing creator of these games, I hold a vested interest in furthering our understanding of them. The visual aspects of these products are well-documented and celebrated, but in this essay I attempt to define the overall landscape of TRPG visual culture …

The Liminal Space Of Dreams: Narration Of Dreams In Graphic Novel And Comics, Muyang Li

MFA in Illustration & Visual Culture

This essay explores the dream as a narrative in graphic novels and comics, examining its character as a subconscious experience depicted by means of visual storytelling. Focusing on psychological, symbolic, and aesthetic functions of dream narrative, I demonstrate that dream narration offers an allegory by means of which both creator and reader can explore issues of identity, desire and trauma in an intimate and healing way. In analyzing these functions of dream narration, I draw upon ideas from theorists such as C.J Jung, Freud and other scholars who have engaged their work on the psychological perspective of the experience of …

Illustrated Nonfiction In The Screen Age, Katie Klaras

MFA in Illustration & Visual Culture

The addictive qualities of our phones and incessant demands on our attention pose consequential challenges to individuals and the collective. In the age of screens, what are illustrated nonfiction books uniquely positioned to offer modern audiences? This essay seeks to understand how the genre can serve as one possible antidote to the infinite scroll. I examine the qualities of three illustrated nonfiction texts: Abbi Jacobson’s I Might Regret This, Shaina Feinberg and Julia Rothman’s How We Got By, and Nora Krug’s Diaries of War. The essay considers how the slower pace of the reading experience, the careful curation of image …

Lines Of Thought: The Cartoon As A Phenomenological Object And A Philosophical Tool, Thomas Attwood

MFA in Illustration & Visual Culture

Cartooning’s greatest strength is its simplicity. This essay argues that the cartoon’s inherent modesty and accessibility are central to its philosophical utility, and that its spare visual language conveys more than meets the eye. Drawing on phenomenology, it considers cartooning as a process grounded in the body, and it investigates the bodily encounter between the viewer and the cartoon. Through an analysis of cartooning work by Saul Steinberg, R.O. Blechman, and Liana Finck - a “family of cartoonists” - it demonstrates how a line-drawn, representational cartooning language can transform the act of looking into a participatory experience that interrogates issues …

Buffalo Bill And The Great Western Story, Sarah A. Hawkes

MFA in Illustration & Visual Culture

The author investigates how narratives are constructed through visual culture to better understand her own history. Buffalo Bill’s Wild West Show acts as a case study demonstrating how “history” is often a narrative established by those in power. These narratives often essentialize their subjects, leading to erasure and exclusion. Sitting Bull and Annie Oakley are used as examples of figures that have become caricatures in service to a greater narrative about the American West. This paper argues for the inefficacy of considering any one narrative as “history” instead recommending a close reading of many different narratives. Three different Western figures, …

America Is Banking On You! Selling American Ideology During World War Ii, David W. Maupin

MFA in Illustration & Visual Culture

This essay uncovers advertising from World War II found in tear sheet archives. Through deep reading and contextual analysis, this essay seeks to determine what these advertisements—found in magazines, newspapers, and posters—were asking their viewers to do in response to the global conflict of the 1940s. It argues that advertisers used emotions and racism to entice citizens of specific classes to invest, enlist, and align their values with American ideals. The creators of these advertisements were hired by American companies, who used government sponsored tactics to woo citizens to the American Ideology while keeping the corporate brand in the public …

Froggy People: Anthropomorphism And Slice-Of-Life In Autobiographical Comics, Maddie Baker

MFA in Illustration & Visual Culture

This essay explores how the following three comics categories overlap and interact with one another: slice-of-life, anthropomorphic, and autobiographical. I search for reasons why comic makers would choose to tell their own daily life stories using animal avatars rather than their own faces. While each of these three categories has been studied extensively individually, I hope to find additional insights by observing how comic makers employ the genres together as storytelling devices. Each category has unique narratological power which impacts the reader’s experience. For example, anthropomorphism affects how the author and reader internalize and relate to characters. Slice-of-life comics are …

Imaginary Friends: Engaging The Unconscious Mind Through Picture Books, Cleonique Hilsaca

MFA in Illustration & Visual Culture

“Imaginary Friends” investigates the potential of the ‘imaginary friend’ as a narrative device in picture book storytelling. By combining the research of Marjorie Taylor on ‘imaginary companions’ and Lois Rostow Kuznets on ‘toy animals’ in literature, I seek to give form to the concept of the imaginary friend, to then explore the phenomenon further by delving into the intellectual heritage of the imaginary and the unconscious mind. To explain how the imaginary friend works as a visual metaphor in illustrated narratives, I borrow principles of image-making and their effect on children, as discussed by Martin Salisbury, Morag Styles, and Molly …

Hauntological Warfare: Explorations In Propaganda, Influence Campaigns, And Online Affect, Roy Uptain

MFA in Visual Art

This thesis, Hauntological Warfare: Explorations in Propaganda, Influence Campaigns, and Online Aesthetics, investigates how ideological power continues to shape contemporary reality through both overt and spectral means. Drawing from concepts like hauntology, psychological operations (PsyOps), and disinformation aesthetics, I examine how propaganda does not simply vanish once its immediate goals are achieved, but instead lingers—reshaping memory, identity, and cultural narratives through what I call hauntological warfare.

My post-conceptual research-based art practice engages this terrain by creating site-specific installations, performances, and media works that make these invisible forces perceptible. Works such as Kill Zones (for Boeing) (2024), r/RoastMe (2024), …

Unmeasured, Detached, And Isolated: The Legitimation Of A Domesticated Identity, Eva M. Agüero

MFA in Visual Art

Unmeasured, detached and isolated explores the lingering effects of colonialism on identity, behavior, and cultural perception through the lens of my personal experience as a Venezuelan immigrant in the United States. I investigate how colonial legacies—especially those codified through manuals of etiquette like Manuel Antonio Carreño’s Manual de Urbanidad y Buenas Maneras—continue to shape self-perception and societal expectations. Through video, sculpture, miniatures, and installation, I reconstruct a visual language that resists simplification and reclaims complexity. Engaging with the symbolic weight of tropical imagery, domestic spaces, and hybrid aesthetics, my work challenges Eurocentric frameworks and examines the figure of the migrant …