Digital Commons Network^™

Multi-Band Spherical Mesh Reflectors For Cis-Lunar Communication Relay Networks, Aman Chandra, Terrance Pat, Harlie Rios

Small Satellite Conference

No abstract provided.

Propulsion System Design And Sensitivity Analysis Of Sub 10cm Debris Detection Cubesat Mission, Mirza Talha Baig, Nicholas Crisp, Despina Ioannide

Small Satellite Conference

Low Earth Orbit (LEO) satellites which are significant to global communication networks, face escalating collision risks from debris smaller than 10 cm. This risk has significantly increased by expanding satellite constellations like Starlink. Bob Sat is a small satellite(cube sat) conceptual design for detecting sub 10 cm debris for which a concept tradeoff was used to choose concept 1. This research introduces the propulsion system design for Bob Sat equipped with 36 JRT laser sensors for enhanced debris detection, crucial for collision avoidance. We detail a strategic mission plan deploying the satellite in circular orbits at various altitudes ranging from …

Preliminary Design Of A 3d Printing System For Creating Infinitely Large Structures In Space, Stephen Timperley, Grant Stec, Daniel Miller

Small Satellite Conference

As interest in the space environment grows, the demand for larger and more capable space systems will follow. A possible solution to fill this demand is additive manufacturing in the form of 3D printing. This paper showcases a working preliminary system to 3D print large structures in space from a small satellite. This is achieved by replacing the normal Z axis control of a conventional CoreXY fused deposition modeling (FDM) 3D printer with a system to move along an infinitely extendable printed track. Having the ability to print and then move along this track creates a cycle of printing and …

The Cosmic X-Ray Background Nanosatellite 3 (Cxbn-3): Toward An Improved Understanding Of Diffuse Emission Produced By High-Redshift Active Galactic Nuclei, Breno Mascarenhas Pontes, Brannon Jones, Thomas Pannuti, Jaden Yates, Benjamin Malphrus

Small Satellite Conference

The Cosmic X-ray Background (CXB) is the diffuse emission of hard X-rays (3-300 keV) that is observed across the whole sky. The general consensus for the sources of the CXB (particularly at higher energies) are heavily obscured active galactic nuclei (AGN) located at a moderate redshift (z ≈ 1). To explore the properties of the CXB further (such as whether flux variations are present at different angular scales), the Space Science Center (SSC) at Morehead State University (MSU) is developing CXBN-3 (Cosmic X-ray Background Nanosatellite 3), a nanosatellite designed to measure the intensity of the CXB within the energy …

Aerodynamic Satellite Attitude Control In Very Low Earth Orbit, Cheng Chang, Robert Breidenthal, Bo-Chuan Lin, Ya-Xun Yang

Small Satellite Conference

Simulation of a 3U-sized standard platform with four control panels attached to the rear part of the satellite at an altitude of 300 km was performed in Simulink to verify the feasibility of the aerodynamic control. The entire controller is composed of three loops: one outer loop and two inner loops. The outer loop is based on the robust and tested quaternion error feedback regulator to provide the target torque input for the two inner loops. The inner loops are responsible for actuating the control panels, using the square-root-based PI controller and a dedicated designed Panel Selecting Method (PSM) to …

Lunar High Quality Terrain Scanning Mission Using Lidar Technology, Mohammed Muqahhis, Mohammed Al Qahtani, Ziyad Al Shamrani, Abrar-Ul-Haq Baluch

Small Satellite Conference

As interest in exploring the moon grows, this study suggests a mission plan that involves using a CubeSat fitted with a LiDAR sensor (SALi) to survey large sections of the lunar landscape and gather precise information on its ruggedness and altitude. By making use of available components and an advanced Guidance, Navigation and Control (GNC) system featuring star trackers, IMUs and maintaining a circular polar orbit at 125 km above the moon’s surface the CubeSat will implement the Lambert Method for efficient orbital insertion around the moon and employ reaction wheels along with ion thrusters for accurate imaging. Communication will …

Development Of Testing And Verification Procedures For Memesat-1'S Subsystems, Jillian Russell, Deepak Mishra

Small Satellite Conference

MEMESat-1 is a 2U repeater crafted by the UGA Small Satellite Research Lab. It's geared towards inspiring the next generation of students to work in aerospace. MEMESat-1 is entering the stage of testing our satellite to ensure it will be prepared for its mission. These tests will be the respnsibility of MEMESat-1's Mission Operations team. MOPs will employ a series of ground tests to validate the satellite's subsystems, including its flight software via the DitL testing, communication via the Simulated Communication testing, power supply via the Charge Cycle testing, ADCS via the ADCS Verification testing, and command system via the …

Printed Circuit Board Reaction Wheels For Small Satellites, Saral Tayal, Paulo Fisch, Zachary Manchester

Small Satellite Conference

Reaction wheels are critical for spacecraft attitude control, enabling precise pointing. However, conventional designs are bulky and expensive, limiting their application in CubeSats and PocketQubes. This paper introduces a novel PCB motor architecture specifically designed for reaction wheels in small satellites. Our design integrates motor windings as traces on the PCB and utilizes a dual-purpose rotor-flywheel combination, resulting in a volumetrically efficient configuration. Additionally, the reaction wheel’s PCB casing enables multifunctional capabilities, such as serving as the satellite’s structural elements or solar panels. The accessibility of PCB manufacturing offers a simplified and cost-effective production process, with each reaction wheel costing …

Contentcube: A 1u Cubesat To Test Display Screens In Space, Joseph Esser, Jason Jagoda, Steffen Winther, Timothy Mcevoy, Tejas Vinod, Larsen Vanofferen, Dylan Cooper, Kevin Schroeder

Small Satellite Conference

ContentCube is a novel 1U CubeSat developed by inspireFly at Virginia Polytechnic and State University, in collaboration with Bronco Space at Cal Poly Pomona. The mission of ContentCube is to test the performance of the Adafruit breakout board OLED screen in orbit. This mission could pave the way for using display screens in the space environment. Such applications could include astronauts having displays on their suits that they can use to monitor critical information, or robotic systems having complex digital displays. The external display screen will be tested through a novel payload designed and tested at Virginia Tech. This payload …

Commissioning Plans For The Pandora Smallsat: A Mission To Quantify Stellar Contamination Of Exoplanet Transmission Spectra, Lindsey Wiser, Jessie Dotson, Thomas Greene, Thomas Barclay, Knicole Colon, Christina Hedges, Ben Hord, Aishwarya Iyer, Elisa Quintana, Rae Holcomb, Trevor Foote, Jordan Karburn

Small Satellite Conference

Pandora is a SmallSat mission designed to observe exoplanet atmospheres and stellar activity. Funded by the NASA Science Mission Directorate (SMD) Astrophysics Division through the Pioneers program, Pandora is a collaboration between NASA centers Goddard and Ames, the Lawrence Livermore National Laboratory, the University of Arizona, and other scientific institutions. Pandora will survey at least 20 transiting exoplanets during one year of science operations, obtaining a long baseline of simultaneous visible-light photometric and near-IR spectroscopic observations. These observations will be used to quantify and correct for stellar contamination of exoplanet transmission spectra due to spots and faculae on host stars. …

Modulation Recognition Using Machine Learning Approaches In Cubesat Signals, Vidushi Jain, Regina Lee, Franz Newland

Small Satellite Conference

• CubeSats make up a large subset of the small satellite industry. • Many CubeSat failure occur along the communication chain and failure to establish contact with the satellite • GNU radio is a platform commonly used for processing signal, with the help of GR-satellite • Establishing such decoding chains are a time-consuming task • Machine learning can be used as a tool to decode signal coming from spacecrafts • The focus is to target different layers of the OSI stack, and this poster demonstrates modulation detection layer

Engineering Model Development Of Lunacube: 6u Dual-Satellite Lunar Navigation And Communication System, Hirotaka Sekine, Kazuki Toma, Takeshi Matsumoto, Shinichi Nakasuka, Toshiki Tanaka, Takuji Ebinuma, Rion Sobukawa, Yoshihide Aoyanagi

Small Satellite Conference

Lunar navigation and communication satellite systems are now recognized as important infrastructure for more efficient lunar exploration. While establishing a full constellation system will take several more years, lunar surface explorations are already becoming more active. To address the immediate demand for positioning and communication relay, especially in the South Pole region, a nimble technology demonstration mission named Lunar Navigation CubeSat (LunaCube) has been proposed. Following the completion of preliminary design in 2021 and detailed design in 2022, the engineering model was developed in 2023. This paper presents updated orbit analysis that considers trade-off between orbit maintenance costs and positioning …

Performance Analysis Of A Pointing, Acquisition, And Tracking System For The Vision Laser Crosslink Mission, Yeji Kim, Pureum Kim, Han-Gyeol Ryu, Sang-Young Park

Small Satellite Conference

As the volume of space-borne data increases, laser communication techniques are being considered to achieve a fast transmission rate and high link security or privacy. The very-high-speed intersatellite link system using an infrared optical terminal and nanosatellite (VISION) mission comprises two 6U formation-flying nanosatellites, and its main objective is to achieve a Gbps-level inter-satellite data-transfer capacity by applying laser communication technology in free space. A pointing, acquisition, and tracking (PAT) system is required to establish and maintain a stable laser crosslink. In the CubeSat platform, the PAT system relies on a satellite attitude determination and control system (ADCS) for body …

A Systematic Review Of The Prevalence Of Late Identified Hearing Loss In Childhood, Karen Muñoz, Dylan Chan, Donald Goldberg, Diana Ortiz, Valerie James Abbott, Karl White

Communicative Disorders and Deaf Education Faculty Publications

Objectives

The objective of this systematic review was to assess the evidence about the prevalence of permanent hearing loss for children not identified from newborn hearing screening (NHS).

Design

Articles were grouped into three categories based on the methodological approach: (1) all participants received diagnostic testing, (2) otoacoustic emission (OAE) or pure tone screening was completed and those not passing were referred for a diagnostic test, and (3) data were retrieved from archival records. Study characteristics, prevalence, and contextual factors were synthesised and narratively described.

Study Sample

30 peer-reviewed articles.

Results

Prevalence of permanent hearing loss per 1,000 children ranged …

What Morgan County Leaders And Residents Can Do To Strengthen The Impact Of Girls And Women In Their Area, Amy Anderson, Deborah Lin, Susan R. Madsen

Marketing and Strategy Faculty Publications

This idea sheet is based on a 2024 gathering of 20 leaders in Morgan County. Girls and women face challenges unique to the area in which they live, and the goal of this gathering was to identify those barriers and determine strategies and initiatives that local leaders and residents can implement to address them. This document includes recommendations in the following areas: home and family, education, health and wellbeing, business and economics, and culture and community engagement.

Bear Lake Project Overview, Charlotte Williams, Alexander Theophilus

Publications

Bear Lake is a popular recreation and tourist destination split between the borders of northeastern Utah and southeastern Idaho. Bear Lake's beaches, watersports, and other outdoor recreation opportunities have attracted tourists for decades. Communities around Bear Lake include Garden City and Laketown, Utah, as well as Paris, Montpelier, Fish Haven, St. Charles, and Bennington, Idaho. Additionally, Bear Lake lies in close proximity to larger metropolitan areas along the Wasatch Front of Utah, such as Salt Lake City and Logan.

In Pursuit Of Eye Tracking For Visual Landscape Assessments, David Evans, Brent Chamberlain

Landscape Architecture and Environmental Planning Faculty Publications

Visual quality and impact assessments have historically relied on experts to formally evaluate the visual properties of a landscape. In contrast, environmental psychologists have studied subjective landscape preferences using ratings and surveys. These two approaches represent, respectively, the “objectivist” and “subjectivist” paradigms within visual landscape research. A gap, however, exists between these approaches: actual observation behaviors. In this paper, we argue for the inclusion of eye-tracking research in visual landscape assessments as a critical bridge between objective landscape qualities and subjective visual experiences. We describe the basics of eye-tracking methods and data types to introduce the role of eye movements …

A Theory Of Conditional Party Opposition, Samuel Nelson

All Graduate Theses and Dissertations, Fall 2023 to Present

This paper takes a critical look at executive power in the United States. Recent years have shown an increase of executive power that many people including: scholars, media, and the public have become skeptical of. The new norm has been for the executive to bypass Congress in order to accomplish policy goals. Traditionally the separation of powers between the executive, legislative, and judicial branches has been the remedy to executive power. This thesis, however, argues that scholarship has largely ignored the role of political parties in government. Due to this, scholarship has misunderstood the role parties play in the separation …

On The Varieties Of Religious Experience In Latter-Day Saint Temples, 1836–1940, Jared Gage Bennett

All Graduate Theses and Dissertations, Fall 2023 to Present

From 1836 to the present, the members of the Church of Jesus Christ of Latter-day Saints have constructed and undertaken rituals in buildings called temples. In the first temple in Kirtland, Ohio, its 1836 dedication was the scene of visions and speaking in tongues, much like those the apostles had at Pentecost in Acts 2. The second temple in Nauvoo, however, had none of these, and the third set of temples built in Utah, with the first completed in 1877, again saw a number of religious experiences but of a radically different form: mainly the appearance of the spirits of …

Desire As A Framework For Adaptation: Examining Aku No Hana As An Unconventional Adaptation Of Les Fleurs Du Mal, Zoe Dalley

All Graduate Reports and Creative Projects, Fall 2023 to Present

In this project, I began by arguing that the 2009 to 2014 manga series Aku No Hana by author and artist Shūzō Oshimi should be considered an unconventional adaptation of the 19th century collection of poems Les Fleurs Du Mal by French poet Charles Baudelaire. I then turned my analysis to the practice of adaptation more broadly, using desire, a central theme to both of my chosen primary texts, as my lens through which I examined some of the central complexities and paradoxes inherent to adaptation, such as the simultaneous expectation of textual faith and a new authorial vision. I …

Unveiling Key Features: A Comparative Study Of Machine Learning Models For Alzheimer's Detection, Cailean Bushnell

All Graduate Reports and Creative Projects, Fall 2023 to Present

This thesis rigorously evaluates the application of an array of natural language processing (NLP) techniques and machine learning models to identify linguistic signatures indicative of dementia, as sourced from the DementiaBank Pitt corpus. Utilizing a binary classification paradigm, this study meticulously integrates sophisticated embedding methods—including Doc2Vec, Word2Vec, GloVe, and BERT—with traditional machine learning algorithms such as Random Forest, Multinomial Naïve Bayes, ADA boost, KNN classifier, and Logistic Regression, alongside deep learning architectures like LSTM, Bi-LSTM, and CNN-LSTM. The efficacy of these methodologies is evaluated based on their capacity to differentiate between transcribed speech impacted by dementia and that from control …

Quality Of Life Domains For Students Living With A Severe Disability And Their Families, Eden Withers

All Graduate Reports and Creative Projects, Fall 2023 to Present

Background and Purpose

From the latter half of the 20th century to now, the United States has dramatically focused its efforts on increasing life longevity and quality of life for people with disabilities, including people with intellectual and developmental disabilities (IDD). Federal legislation has taken steps to increase quality of life for people with IDD. Quality of life can be assessed through a variety of questionnaires, including the familial perspective of quality of life. Although quality of life can be assessed and it is supported by federal legislation, people with IDD broadly have yet to experience an enviable quality of …

Legend Trips And Vernacular Film Theory: Spooky Encounters In Tiktok Mediated Legend Trips, Drew Holley

All Graduate Reports and Creative Projects, Fall 2023 to Present

In this thesis I looked at how legend tripping is mediated through the affordances of new social technologies and apps, specifically TikTok. Short video formats allowed for folk cinematography to spread legend narratives and at the same time create more visual online landscapes for people to interact with. I defined folk cinematography as the way in which people make videos based on a vernacular level. This has been based on people having more access to video making tools and learning from informal patterns such as trends on sites like TikTok. Because of this, I explored how audiences participate in a …

The Sustainable Sites Initiative As It Applies To Existing Parks In Logan Utah, Randall Smith

All Graduate Reports and Creative Projects, Fall 2023 to Present

The Intermountain West of the United States consists of a variety of climates and landscapes. Despite their diversity, all of these regions face similar issues, such as water shortage, lack of biodiversity, invasion of non-native plant species, land development, and population growth. The pursuit of sustainability has become imperative in order to meet the needs of the present, while simultaneously safeguarding the ability of future generations to meet their own needs. Many influential landscape architects have advocated for sustainable design; namely, Frederick Law Olmsted, Ian McHarg, and Laurie Olin. However, sustainability is used too often as a generic buzzword, diminishing …

Introduction To Landscape Architecture State Standards And Curriculum For Utah High Schools, Joseph Pancoast

All Graduate Reports and Creative Projects, Fall 2023 to Present

Utah State University (USU) offers a successful Introduction to Landscape Architecture class for college students; this class increases awareness and understanding of landscape architecture as a profession. Though this is a wonderful resource offered at the college level, high school is a key time for career awareness. Unfortunately, there is a lack of student awareness surrounding the profession of landscape architecture. In Utah and the rest of the United States, there are currently no in-person Introduction to Landscape Architecture classes available in a high school setting to increase awareness and understanding for students in a high school setting. Providing a …

Birds, Bees, And The Babies: Study Of The Influence Of Self-Efficacy On Parent-Child Sex Communication, Cassandra M. Craig

All Graduate Theses and Dissertations, Fall 2023 to Present

Previous studies show that parents tend to be uncomfortable discussing sexual topics with their children, such as menstruation, masturbation, and/or condom use. This study offers a look at the part confidence plays in a parent's intentions to talk to their kids about such topics. The results indicated that the confidence parents feel about discussing sexual topics is not related to how much their own parents talked with them about sex. However, the confidence they feel that could be coming from other models, like social media or peers, is related to how much parents intend to talk with their own children …

Utilizing Bayesian Optimization In Technoeconomic Analyses For Integrated Energy Systems, Anthoney Griffith

All Graduate Theses and Dissertations, Fall 2023 to Present

Technoeconomic analysis is a key element in the study of integrated energy systems. The goal of this analysis is the sizing of technologies resulting in the best economic outcome for the system. The evaluation of this system involves sizing the components and simulating the resulting market to determine an outcome. This simulation incorporates multiple possible values of uncertain parameters like grid price and wind generation. This problem is currently approached with the gradient descent optimization method. An alternative approach, Bayesian optimization, sees success on simple problems of a similar nature to technoeconomic analyses. These results motivate applying Bayesian optimization as …

The Rise And Fall Of Elizabeth Holmes: Investigating Myths Within Media Coverage, Charlotte Emelia Williams

All Graduate Theses and Dissertations, Fall 2023 to Present

When Elizabeth Holmes became the youngest female billionaire in 2014, news media framed her as the next Steve Jobs due to her similarities as a dropout, a passionate industry disruptor, and a visionary. When she was discovered as a fraud in 2018, coverage framed her as a feminine, seductive monster who duped everyone. I analyzed the media coverage in both years to uncover myths that guided these narratives and argue that these news frames contributed to the large interest in her rise and fall while also reinforcing harmful ways of thinking toward success and female leadership.

Ensemble Machine Learning At The Edge Using The Codec Classifier Structure And Weak Learners Guided By Mutual Information, Aj Beckwith

All Graduate Theses and Dissertations, Fall 2023 to Present

The Codec Classifier is a low-computation, low-memory tree ensemble method that dramatically improves feasibility of image classification on resource-constrained edge devices. It achieves advantages over other tree ensemble methods due the separation of encoder and decoder tasks in the classifier. The encoder partitions feature space, and the decoder labels the regions in the partition. This functional separation of tasks enables the encoder design (partitioning) to be guided by maximizing the mutual information (MI) between class labels and the features (i.e. the encoded representation of the data) without regard to the error performance of the classifier. Experiments show maximizing MI leads …

Managing Public Land Outdoor Recreation For Improved Visitor Experience And Resource Protection: Comparing Direct And Indirect Visitor Use Management Tools, Iree Wheeler

All Graduate Theses and Dissertations, Fall 2023 to Present

Public land managers incorporate a variety of tools to manage visitors to Parks and Protected Areas (PPAs). The intention of these management actions is to mitigate visitor impacts on natural resources, and facilitate high quality visitor experiences by minimizing depreciative behavior or spreading out visitation to reduce congestion. Approaches such as interpretation and educational information which indirectly influence visitor behavior by encouraging people to participate in minimum impact behavior or to visit during a different time, are referred to as indirect management actions. Other approaches use enforcement or regulations to mandate changes in behavior, or direct management actions. While these …