Digital Commons Network^™

Analysis Of Perturbations And Station Keeping Maneuvers Of A Satellite In Geostationary Equatorial Orbit (Geo), Michael I. Safier

Mechanical Engineering and Materials Science Independent Study

This independent study analyzed the station keeping maneuvers and ΔV’s required to offset major natural perturbations to keep a satellite in Geostationary Equatorial Orbit (GEO). This was completed with Poliastro in Python by modeling those perturbations and propagating through a GEO orbit. This allowed for the determination of the North-South and East-West station keeping maneuvers required to keep the satellite within a ± 0.05 longitude and latitude box. The four major perturbations studied were 𝐽₂, lunar gravity, solar gravity, and solar radiation pressure, whose accelerations were all found to be on an order of magnitude of 10−9 km/𝑠 …

Investigation Of New Surfaces For Pressure Injury Prevention, Jeremy Choh

Mechanical Engineering and Materials Science Independent Study

Pressure injuries remain as a large challenge for the health care industry with hospitals responsible for more than half of the pressure injuries cases. [1] Current methods for pressure injury prevention are labor intensive or expensive. The use of hydrogels and diaelectric materials with reversible mechanical properties were investigated to generate 32 mm Hg pressure relief for pressure injury prevention. However, it was determined that the mechanical properties of these materials were inefficient in mechanical strength, activation time, or activation energy to be suitable for health care purposes. The use of low intensity ultrasound therapy was studied instead. A single …

Comparing The Use Of Measured And Smoothed Data In Forecasting Visual Field Tests Using Deep Learning, Ashkan Abbasi, Sowjanya Gowrisankaran, Wei-Chun Lin, Xubo Song, Bhavna Josephine Antony, Gadi Wollstein, Joel Schuman, Hiroshi Ishikawa

Wills Eye Hospital Papers

OBJECTIVE: To evaluate the impact of training and testing deep learning (DL) models for visual field (VF) forecasting using input-target pairs in which the target is either the measured VF test result, or its smoothed counterpart constructed via linear regression.

DESIGN: A retrospective data analysis study evaluating DL models for VF forecasting under multiple training and testing configurations.

SUBJECTS AND CONTROLS: A total of 1400 subjects (healthy and glaucoma patients) with 19 437 reliable Humphrey VF (24-2 Swedish Interactive Threshold Algorithm) tests collected from longitudinal cohorts at the University of Pittsburgh and New York University.

METHODS: Three DL-based pointwise VF …

Volume Electron Microscopy Reveals Heterogeneity Of The Hemostatic Response In Veins And Arteries, Maurizio Tomaiuolo, Meghan E. Roberts, Jenna R. Severa, Christopher D. Mansi, Brenna B. Y. Mathers, Anna Mannix, Trace A Christensen, Lawrence F Brass, Talid Sinno, Timothy J. Stalker

Cardeza Foundation for Hematologic Research

Intravital imaging studies have provided insights into the spatial and temporal variations of platelet activation and thrombin generation that occur during hemostasis; however, these studies are generally limited to small vessels due to the practical limitations of imaging in thicker tissues. Recent advances in cleared tissue fluorescence imaging as well as volume electron microscopy (vEM) coupled with machine learning-based image segmentation provide an opportunity for analysis of the 3-dimensional structure of complex tissues. We utilized these technologies to examine hemostatic plugs from murine jugular veins and carotid arteries to investigate the spatial distribution of platelet activation and biochemical responses in …

A Governance-Aware Multi-Agent Framework For Enhancing Fairness & Temporal Accuracy In Disaster Response Systems, Md. Ashfaqur Rahman

Theses and Dissertations

Large Language Models (LLMs) have demonstrated significant potential in disaster-response decision support, however, their deployment in high-stakes humanitarian settings raises critical concerns regarding factual reliability, fairness, temporal validity, and governance compliance. Hallucinated outputs, demographic bias, and outdated recommendations can directly impact vulnerable populations and undermine public trust. This dissertation proposes a governance-aware multi-agent framework designed to enhance fairness and temporal accuracy in disaster-response systems through structured Retrieval-Augmented Generation (RAG), verification-driven orchestration, and adaptive correction mechanisms.The proposed architecture decomposes response generation into specialized agents responsible for real-time retrieval, fact-checking, bias auditing, temporal validation, threshold-based correction, and monitoring. By embedding governance constraints …

Smart Pediatric Oncology Tracker Of Symptoms (Spots), A Web-Based Interface For The Pediatric Pro-Ctcae: Development And Usability Study, Stacey Crane, Deevakar Rogith, Melody Hellsten, Andrew D Miller, Jacqueline Castillo, Brandy Boeger, Susan Vidaurre, Stefanie Pieper, Cecile Nguyen, Duc Anh Thanh Huynh, Jessica Wooden, Amy Franklin, Karen Moody, Wenyaw Chan, Pamela S Hinds, Constance Johnson

Faculty, Staff and Student Publications

Background: Children undergoing cancer treatment experience a range of treatment-related toxicities that significantly affect quality of life and adherence to therapy. Current methods for symptom reporting rely heavily on clinician interpretation of caregiver or child verbal reports, which can result in incomplete or inaccurate records. The Pediatric Patient-Reported Outcomes version of the Common Terminology Criteria for Adverse Events (Pediatric PRO-CTCAE; National Cancer Institute) provides a validated mechanism for direct symptom reporting by children and caregivers, yet its traditional administration and preselection of questions limit the breadth of symptom capture.

Objective: This research aimed to co-design and conduct formative usability testing …

Thermal Transient Analysis Of Mahogany Wood Biomass Pyrolysis: The Role Of Zeolite Catalyst Variations On Temperature Distribution, Yusri Yusri, Widya Wijayanti, Mega Nur Sasongko

Journal of Mechanical Engineering Science and Technology (JMEST)

Biomass pyrolysis is a thermochemical process that converts waste into fuel. The use of zeolite catalysts can enhance efficiency by accelerating biomass decomposition. To demonstrate its effect, thermal simulations were conducted using ANSYS Thermal Transient to analyze temperature distribution, reaction rates, and catalyst effectiveness in the pyrolysis process. This study aims to improve thermal efficiency and temperature uniformity by analyzing the effect of 10% and 20% zeolite mixtures on heat distribution and heating rates at input temperatures of 650 K, 750 K, and 850 K, using the 2D axial symmetry method. The simulation was performed under specific boundary conditions: input …

Llms In Compiler Construction, Raffi Khatchadourian

Open Educational Resources

These lecture slides survey the use of large language models (LLMs) in compiler construction for a graduate compiler course (CSc 81010). They situate LLMs across the compiler pipeline and examine representative work: foundation models trained on LLVM IR and assembly (Meta's LLM Compiler), LLM-driven code optimization, binary decompilation (LLM4Decompile), and LLM-assisted automated refactoring—alongside the challenges of applying probabilistic models to tasks that demand correctness. The slides are a self-contained HTML (W3C Slidy) deck with editable Pandoc Markdown source. Part of a two-session unit on advanced compiler topics; see also "Deep Learning Compilers."

Deep Learning Compilers, Raffi Khatchadourian

Open Educational Resources

These lecture slides introduce deep learning compilers for a graduate compiler-construction course (CSc 81010). Building on the classical compiler pipeline, they show how modern machine-learning systems compile tensor programs: static tensor and type analysis (illustrated by a WALA/Ariadne-based refactoring of imperative TensorFlow code to graph mode), MLIR-based end-to-end compilation with IREE, and the PyTorch 2.x stack—TorchDynamo graph capture, AOTAutograd, PrimTorch operator decomposition, and TorchInductor lowering to Triton (GPU) and C++/OpenMP (CPU). The slides are a self-contained HTML (W3C Slidy) deck with editable Pandoc Markdown source. Part of a two-session unit on advanced compiler topics; see also "LLMs in Compiler Construction."

Sensation-Suppression Theory: A New Explanation For Fibromyalgia Syndrome And Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (Me/Cfs), Michael E. Hyland

School of Psychology

Explanations and treatment of fibromyalgia syndrome (FMS) and myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) are controversial, and outcomes are poor. This paper describes sensation-suppression theory, a theory modelled on self-organizing control systems that are capable of adaptation in response to inputs and used in applications of artificial intelligence. The theory shows how the need to suppress inflammatory and other causes of pain or fatigue due to challenging circumstances sensitizes the neurological processing of pain and fatigue, thereby creating the amplified sensations and abnormal cognitions of central sensitivity syndromes. These syndromes are caused by errors in an evolutionarily early behavior-control mechanism of …

In-Tsira Healing: Integrating Trauma-Informed Design And Sustainable Design Into Wellness Centers For Survivors Of Gender Based Violence, Eniola Ololade Esther Akinyemi

Bachelor of Architecture Theses - 5th Year

Survivors of gender-based violence in Northern Nigeria face layered barriers to recovery, including trauma, stigma, displacement, and loss of livelihood. Yet the built environments intended to support them remain largely unresponsive. This thesis proposes a trauma-informed, climate-responsive wellness campus in Maiduguri, Borno State, grounded in cultural and environmental context.

The research asks how trauma-informed and sustainable design strategies can be implemented in healing centers to reduce re-traumatization, foster safety, and support reintegration through self-supportive, educational, and communal spaces?

How can trauma informed and sustainable design strategies be implemented in wellness centers to foster safety and healing while reducing re-traumatization, and …

A(Gr)Tecture: Designing An Agricultural Learning Facility To Energize Food Production In The Urban Areas Of Dominica, Kendel Constant

Bachelor of Architecture Theses - 5th Year

This thesis aims to explore my interests in improving the agricultural sector/farming within the urban areas of the tropical Caribbean Island of Dominica. The research will examine the issues currently challenging the agricultural sector, including hurricanes, landslides triggered by heavy rainfall, and shifts in temperature, which destroy open-field crops. In addition, other issues, including limited adoption of advanced farming techniques, an aging farmers’ population, and soil erosion, have weakened the agricultural sector in Dominica. My thesis project is to teach farming methods through an Agricultural Learning Facility that can help address these challenges, but focus on the urban areas.

The …

Rebel Commons: Reimagining Commoning, Connectivity, And Civic Space Through The 2025 Gen-Z Uprisings, Corbin Austin

Bachelor of Architecture Theses - 5th Year

In September 2025, Nepal’s Generation Z, those born roughly between 1997 and 2012, mobilized one of the largest horizontally organized youth rebellions in South Asia, using digital platforms to coordinate mass protests against corruption, unemployment, restricted opportunity, and failures of public governance. These grievances are exacerbated by Nepal’s unique geographical conditions, leading to severe physical disconnection due to the country’s extremely mountainous terrain. In tandem with this physical fragmentation, the nation has experienced years of political instability following the 1996 to 2006 civil war. As a result of these factors, young people face limited mobility, deteriorating infrastructure, and weak institutional …

Kattam Choreography- A Facade Of The Virgin Islands, Kiyani J.M. Ottley

Bachelor of Architecture Theses - 5th Year

Kattam Choreography reimagines a historic building in Charlotte Amalie, St. Thomas, USVI as a vibrant cultural hub that celebrates dance, memory, and commerce. Rooted in the embodied traditions of the qudrille folk dance, this project explores adaptive reuse as a performtive act—where architecture becomes a living archive of movement and heritage.

The design treats the building’s layered history not as a static artifact, but as a choreographic score. Quadrille’s spatial logic—its symmetry, rhythm, and communal gestures—informs circulation, program, and atmosphere. The building unfolds as a triptych: a dance pavilion, multi-purpose educational spaces, and a gift shop. Each element responds to …

The Use Of Tactile Stimulations To Mitigate Somatic Anxiety Responses: A Pilot Study, Abigail C. Robbins

Masters Theses

Anxiety is the body’s response to detected danger or stress. Physiological responses include shallow breathing, increased heart rate, sweating, shaking, and muscle tension. Roughly 33.7% of the population experiences anxiety, with approximately 40 million adults in the United States being affected by the disorder. Anxiety can create severe personal, social, and economic burdens. Traditional treatments of anxiety disorders such as medication and psychotherapy can be effective, but present multiple barriers such as cost, accessibility, and side effects. As a result, there is a growing industry for non-invasive, low-cost solutions that can help individuals regulate their physiological anxiety responses and reduce …

Experimental Measurements Of The Forces Acting On A Submerged Beam Using High-Speed Videography, Madelyn Burrell

Masters Theses

The interaction of structures and fluids is highly relevant in many fields but difficult to accurately and reliably characterize. This study demonstrates a novel method of simplifying such problems by analyzing the structural deformations directly, without needing to explicitly solve for the fluid aspect. Six cantilever beams of varying properties were submerged in still water and released from an initial deflection at the free end: the cases consisted of three beam shapes (one of uniform width, one with a narrower free end, and one with a wider free end), with an end mass attached or detached. High-speed videography was utilized …

A Novel Hybrid Dual-Stream Deep Learning Architecture Integrating Multi-State Lstm, Cnn, And Multi-Head Self-Attention For Water Level And Discharge Prediction (Missouri River Basin, Usa), Milad Ahmadi Gharehtoragh, Ali Mehran, Georgia Destouni, Alireza Taheri Dehkordi

Faculty Research, Scholarly, and Creative Activity

Study region: The Missouri River Basin, located between the states of Nebraska and Iowa, USA. Study focus: Water level (WL) and discharge (Q) are key hydrological variables, accurate prediction of which in both long-term and short-term (extreme events) scenarios is essential for water resources and flood risk management. We propose a novel hybrid deep learning architecture, CNN-NLSTM-SA, which integrates a Convolutional Neural Network (CNN) branch for extracting local features and a Multi-State LSTM (NLSTM) branch for capturing long-term temporal dependencies. NLSTM, with its child-parent structure, enhances memory propagation and mitigates vanishing and exploding gradients. The outputs of these two branches …

Effects Of Niobium On The Mechanical And Oxidation Properties Of Additively Manufactured Tungsten, Alexander Lesieur, Cayla Eckley, Ryan A. Kemnitz

Faculty Publications

Although additive manufacturing presents a novel and customizable approach to fabricating tungsten (W) alloys, the layer-by-layer production technique presents a unique set of processing challenges which are further exacerbated by the metal’s refractory properties. In this study, additions of niobium (Nb) were found to improve the mechanical properties and oxidation resistance of additively manufactured W. Microstructural investigation revealed the effect of Nb on the cracking, grain size, and texture in the as-built material. Mechanical compression testing showed significant improvement in ductility with increasing Nb content. The low concentrations of Nb used did not induce large changes in the yield strength …

Simultaneous Multielectrode Recordings Along The Human Scala Tympani: Evidence For Level-Dependent Place Coding, Amit Walia, Matthew A Shew, Shannon M Lefler, Amanda J Ortmann, Patrick Ioerger, Jordan Varghese, Jacques A Herzog, Craig A Buchman

2020-Current year OA Pubs

The cochlea systematically encodes sound frequency and intensity via a precisely organized tonotopic map, in which traveling waves peak at specific cochlear locations. A fundamental but incompletely understood aspect of auditory coding involves how stimulus intensity shapes this tonotopic organization. In animal models, increasing intensity shifts the cochlear traveling wave peak basally; however, physiological evidence for such intensity-dependent shifts in human cochlear processing is limited. Here, we performed simultaneous multielectrode electrocochleography recordings along the human scala tympani to characterize how cochlear place coding varies as a function of stimulus intensity. In subjects with preserved cochlear mechanics, including individuals with auditory …

High-Surface-Area Ficus Leaf-Extracted Cuo-Zno-Nio Ternary Nanocomposites For Rapid Adsorption-Assisted Uv-A Degradation Of Direct Blue 15, Kafa’A H. Ali, Mohammed A. Atiya, Ahmed K. Hassan

Karbala International Journal of Modern Science

Direct Blue 15 (DB15) is a long-lasting synthetic dye that pollutes water and is difficult to remove during wastewater treatment. Conventional treatments fail to remove DB15 adequately due to rapid electron-hole recombination, which necessitates photocatalysts with reduced recombination rates for effective dye removal. The study aims to synthesize and evaluate a CuO-ZnO-NiO ternary system as an integrated adsorption and UV-A photocatalysis platform for DB15 removal. Ficus leaf-extracted CuO-ZnO-NiO nanocomposites with four Cu:Zn:Ni ratios (1:1:1, 1:1:2, 1:2:1, 2:1:1) were prepared by co-precipitation, followed by extensive chemical and physical characterization and dye-removal performance measurements. The CuO-ZnO-NiO nanocomposite exhibited hexagonal zinc oxide, cubic …

Notiflkasi Hukum Konstitusi Melalui Pendldlkan, Astim Riyanto

Jurnal Hukum & Pembangunan

Abstract

Uncovering The Impact Of Youtube's Hidden Algorithm On Its Users, Oscar Perez

COD Library Student Research and Award Symposium

YouTube is a well-known platform that offers users endless hours of news, entertainment, and education. This research seeks to understand how the algorithm functions and uncover the effects of allowing a system to curate content for viewers. The research combines academic sources with fieldwork to understand the impact of YouTube's algorithm.

Faculty Sponsor:  Professor Jacqueline McGrath

Leadership Fireside Chats, Chief Operations Officer, Assistant Secretary Will N. Watts, Jr., P.E., Melissa Mccaffrey, Blain Newton, Diana Siegel, Ryan Naru, Jc Asencio, Andrew Gappy, Megha Bhatia, Rani Plaut, Charlie Hillis, Warren Carroll, Kevin Cox, Mike French, C.M., Addison Ferrell

Florida Advanced Air Mobility Symposium

• 3:00 - 4:00 pm Original Equipment Manufacturers (OEMs)
• 4:00 - 4:30 pm Operators
• 4:30 - 5:15 pm Infrastructure Developers

A Geotechnical Analysis Of Mid-Slope Soil Sample Pp-15 From The Palouse Prairie Restoration Project In Cheney, Wa, Basil Lund, Robin Roose, Chloe Jensen

2026 Symposium

The Palouse is an Inland Northwestern ecoregion with loess hills created by aeolian processes related to Pleistocene glacial events. Eastern Washington University’s Prairie Restoration Project aims to restore a 120-acre site located in Cheney, Washington. EWU is gradually seeding bunchgrasses and perennial forbs to increase biodiversity of the site, which will be used for educational and recreational purposes. The objective of this project was to determine to what extent the engineering properties of soil on the site varies along a slope. To determine if location on the slope affects soil properties on the site, we sampled and performed a geotechnical …

Vmi Hosts Statewide Science Fair Vda Members Serve As Judges For Annual Event, William A. Burston Dmd

Virginia Dental Journal

No abstract provided.

For Hobbs & Associates, Giving Back Is A Family Tradition, Tara Quinn

Virginia Dental Journal

No abstract provided.

House Overwhelmingly Votes In Favor Of Repealing Mccarranferguson Antitrust Exemption For Health Insurance Companies

Virginia Dental Journal

No abstract provided.

Relief From Dry Mouth- A Novel Approach, Jeffrey W. Cash Dds

Virginia Dental Journal

No abstract provided.

Message From The Editor, Richard F. Roadcap Dds

Virginia Dental Journal

No abstract provided.

Va Dent J April, May And June 2017

Virginia Dental Journal

No abstract provided.