Digital Commons Network^™

Pulse-Q: Space-To-Ground Quantum Key Distribution At The Cubesat Form Factor, Logan Hanssler, Stewart Kristiansen, Ellisian King, Neha Chandran, Unnathi Venkatesh, Selina Gao, Nelson Chan, Mika Sadikario, Joseph Sorel, Lexi Liu, Eleanor Gentry, Rohan Gupta, Juan Ignacio Prieto Asbun, Lauren Ayala, Vincent Redwine, Tian Zhong

Small Satellite Conference

Motivation 

• Quantum key distribution (QKD) offers provably secure communication regardless of the technology available to potential eavesdroppers.
• Space-to-ground QKD facilitates long-distance key distribution without costly terrestrial infrastructure.
• The Polarization-modUlated Laser Satellite Experiment – Quantum (PULSE-Q) is a 12U CubeSat mission to leverage recent innovations in compact quantum sources and optical communication to achieve space-to-ground QKD.

Processor And Sensor Interfacing On Fpga For Stp-H12-Vantage Space Mission, Christopher Brubaker, Alan D. George

Small Satellite Conference

Previous SHREC Missions

• STP-H5-CSP – Demonstration of CSP and hybrid COTS + rad-hard architecture
• STP-H6-SSIVP – Parallel and distributed computing with multiple CSPs
• STP-H7-CASPR – Onboard processing with next-gen sensors and apps

STP-H12-VANTAGE

• Visual And Neuromorphic Tracking And Geosensing Experiment
• Correlation of neuromorphic and visual sensor data
• Advancing usage of COTS SoMs supplemented with rad-hard monitoring and watchdog circuitry

Onboard Ai At The Orbital Edge: A Mission Debrief From Stp-H7-Caspr, Evan W. Gretok, Linus Silbernagel, Diego Wildenstein, Michael J. Cannizzaro, Seth Roffe, Alan D. George

Small Satellite Conference

Goals: Enable autonomous Earth observation and onboard sensor data processing with novel compute

Motivations: Growing numbers of spacecraft demand autonomy in operation and data collection

Challenges: Harsh radiation and thermal environment of space over four-year mission lifetime

A Comparative Analysis Of Radio Frequency And Optical Inter-Satellite Link Communications For Leo Mega-Constellations, Alexa Houck, Suryansh Aryan, Kevin Schroeder, Samantha Kenyon

Small Satellite Conference

SpaceNet design  

Software-based testbed for simulating large satellite networks, specifically LEO-based constellations to analyze network behavior, connectivity, routing, and overall communication.  

• Phase one focuses on connectivity and routing: Given the topology and link availability over time, how does my network behave? 
• Phase two focuses on network emulation: Given the topology and link availability over time, how does my network behave? 

Arcsecond-Level Pointing Accuracy In A Cubesat: Development And Verification Of The High-Precision Pointing System For The Cubespec Mission, Leonardo Peri

Small Satellite Conference

Mission and objectives 

CubeSpec is a 12U CubeSat mission designed to demonstrate high-resolution stellar spectroscopy from a small, low-cost space platform. 

Its scientific objectives require the payload line-of-sight to remain stable within a few arcseconds. This is beyond the capability of conventional CubeSat Attitude Determination & Control Systems (ADCS). 

To meet this challenge, CubeSpec uses a dual-stage pointing architecture: the spacecraft ADCS provides coarse body pointing, while a High-Precision Pointing Platform applies fast, precise corrections directly to the payload line-of-sight.

Snack Protocol For Reliable High-Throughput Data Transfer On Mtu-Constrained Low-Cost Uhf Radios, Samantha Mallari, Dennis Sarsozo, Miguel Nunes

Small Satellite Conference

• Student CubeSat missions using sub-$100 UHF radios are constrained by small packet sizes, making standard protocols (e.g., TCP, CFDP) too overhead-intensive for payload downlinks.  
• We developed a Selective Negative Acknowledgement (SNACK)-based protocol for the Artemis CubeSat Kit bus to support reliable 160 × 120 LWIR thermal image transmission for the CubeSats for Climate Change Monitoring (C3M) mission  
• A 45-byte SNACK bitmap acknowledges up to 360 packet fragments, minimizing retransmission overhead.  
• Field tests from 5 m to 1.6 km achieved 72.2 kbps peak throughput and ≥98.7% final data integrity.

Autonomous Microelectronics See Payload For Validating Terrestrial Predictions In Space, Michael A. Blacconiere, Isaac Hudson, John W. Burgoon, Terrance Sacks, Spencer Westfall, Sajal Islam, Davidson Juhke, George Randel, Jared Harvey, Merek Chertkow, Daniel Loveless

Small Satellite Conference

The radiation environment in space is complex and time-varying, causing major risks for microelectronic applications. Terrestrial radiation sources are used to characterize devices before missions to predict in-orbit error rates. However, these predictions are rarely validated in deployment. The payload, designed by IU CREATE and The Radiation Team, the IUB-SAT-1, integrates IU’s RadFX-IC and commercial SRAMs with well-characterized terrestrial radiation responses into a modular payload to collect on-orbit radiation-response data. Results will refine radiation error-rate models and improves confidence in deploying advanced microelectronics to radiation-rich space environments.

Bit-Flip Sensitivity And Selective Fp32 Protection For Onboard Neural Networks In Flight Software: In-Place Secded Healing Of An Fp32 Weight Buffer Inside Nasa Cfs, Ryan Goodman, Carson Cramer, Braden Eichmeier, Emily Gerber, Christopher Roscoe

Small Satellite Conference

Smallsat missions increasingly deploy neural networks on COTS processors. In orbit, a charged particle striking such a device can flip a single bit of memory, a single event upset (SEU). An upset in a network weight raises no fault condition: the network continues to run, returns incorrect values, and the control loop downstream acts on them. 

The standard cFS response to memory corruption is process restart, which interrupts service and discards runtime state.

In-Transit Debris Remediation: Dual-Use Logistics For Sustainable Cislunar Smallsat Constellations, Wanjiku Chebet Kanjumba

Small Satellite Conference

A Debris Crisis Meets A Logistics Boom: Low- and high-Earth orbit keep accumulating debris faster than the atmosphere can clear it, even as NASA's Artemis and CLPS programs establish routine trans-lunar traffic. The 2009 Iridium-Cosmos collision and later anti-satellite tests proved that single fragmentation events can irreversibly degrade critical orbital shells, raising the specter of Kessler Syndrome. 

• 46,600+ objects tracked on orbit today, with ~130 million sub-cm fragments (ESA, 2025)
• $500K-$2M cost per kilogram for dedicated ADR, fiscally intractable at system scale
• 5-10 / yr large objects must be removed to stabilize LEO (Liou & Johnson)

The Unit-Economics Problem: Purpose-built …

Numerical Characterization Of Phase Coherence In Distributed Smallsat Sar Interferometry, Cameron Kaminski

Small Satellite Conference

Distributed SmallSat SAR requires independent spacecraft to maintain phase coherence over long integration times. This work presents a Monte Carlo simulation that combines manufacturer-derived oscillator phase noise, spacecraft thermal dynamics, and orbital perturbations to evaluate passive coherence limits. The results show that oscillator quality alone is insufficient; differential thermal-state evolution becomes a dominant driver of long-duration coherence performance.

F Prime To Flight Faster: Hardware-In-The-Loop Continuous Integration For Accelerated Cubesat Development, Nate Gay, Saidi Adams, Michael Pham

Small Satellite Conference

Flight software teams iterate quickly in development and then slow down at integration, because the software must be validated against real hardware that is itself still changing. 

Bench testing is manual, intermittent, and happens late. Defects surface days after the commit that caused them, once the context is gone and the change has been built on.

Promoting Assured Formation Flight Autonomy Onboard Resource Constrained Systems, Ryan Johnson, Maggie Michelsen, Jackson Gardner, Mario Harper, Charles Swenson, Jackson Kulik, Shawn Jones

Small Satellite Conference

Autonomously determining fuel-optimal, formation-keeping trajectories for small spacecraft operating in formation flight is often limited by available processing power. Because SmallSat missions are constrained by size, weight, and power (SWaP), field-programmable gate arrays (FPGAs) are an attractive option for onboard computing. Traditional formation-keeping relies on convex optimization to solve for fuel-optimal burns and burn times; however, implementing these solvers on FPGAs is challenging due to limited board resources.

To address the need for fast, reliable trajectory planning onboard space vehicles, we investigate leveraging machine learning to reduce computational cost for real-time, onboard execution. We propose using a deep neural network …

Technologies To Remoisturize Alfalfa In The Windrow For Baling, Earl Creech, Ryan Larsen, Matt Yost, Mark Nelson, Mckenna Barney

All Current Publications

Having the correct moisture at the time of baling is critical to maximizing economic return. In 2020 and 2021, researchers at Utah State University studied moisturization technologies to determine their impact on alfalfa yield, quality, and economic return. This fact sheet provides a research overview and study results on bale moisture and weight, yield, quality, and visual appearance. An economic analysis is also included.

Exploring Knowledge And Sources Of Information On Augmentative And Alternative Communication Among Board-Certified Behavior Analysts, Alyssa Roylance, Sophia R. D'Agostino, Avery Briggs, Naima Bhana-Lopez

Special Education and Rehabilitation Counseling Student Research

Applied Behavior Analysis (ABA) is often recommended to help autistic individuals develop needed skills, and as such, Board-Certified Behavior Analysts (BCBAs) should be prepared to assist minimally verbal individuals to learn how to communicate. Augmentative and Alternative Communication (AAC) can be a helpful tool to assist communication for these individuals. An explanatory sequential mixed-methods study, including a survey with Likert-type and open-answer questions and a semi-structured interview, was conducted to learn if BCBAs are receiving training on AAC systems and where they are obtaining AAC-related professional development. The survey and interview also inquired about collaboration with other professionals regarding the …

Sensitivity Study Regarding Abs Formulation On Hybrid Rocket Performance, Ava T. Wilkey, Ryan J. Thibaudeau, Stephen A. Whitmore

Mechanical and Aerospace Engineering Student Publications and Presentations

Acrylonitrile butadiene styrene (ABS) has emerged as a widely adopted solid fuel for hybrid rocket propulsion due to its compatibility with fused deposition modeling and favorable regression characteristics. As a terpolymer, however, ABS monomer mass fractions vary across commercial sources, introducing thermochemical variability that is rarely accounted for in propulsion modeling. This study presents a sensitivity analysis examining how compositional variability among ten commercially available ABS feedstock propagates into hybrid rocket performance predictions. Each source was characterized using bomb calorimetry and Fourier-transform infrared spectroscopy to derive source-specific constituent mass fractions and enthalpies of formation, which were supplied to NASA’s Chemical …

Malnutrition Risk, Nutrition Insecurity, Barriers, And Facilitators To Dietary Management Among Adults With Inflammatory Bowel Disease In The Us Rocky Mountain Region: A Cross-Sectional Mixed-Methods Study, Heather Burr, Carrie Durward, Korry Hintze, Getrude Mphwanthe

Nutrition, Dietetics, and Food Science Student Research

We conducted an online cross-sectional study to assess malnutrition risk, food and nutrition insecurity, and perceived barriers and facilitators to dietary management among adults (18–64 years old) with a self-reported clinical diagnosis of inflammatory bowel disease (IBD) in outpatient and community settings. We assessed malnutrition risk using the Saskatchewan IBD-Nutrition Risk screening tool, food security risk using the two-item Hunger Vital Signs questionnaire, and nutrition security risk using a validated four-item tool. Open-ended questions elucidated barriers and facilitators to dietary management of IBD. Among 57 participants who self-reported a clinical diagnosis of IBD, 52.6% (n = 30/57) had ulcerative colitis, …

Understanding And Supporting Youth Affected By Trauma And Stress, Cara Murray, Anna Gilliam, Jared Hawkins, Christina Pay

All Current Publications

Adults who work with youth are central to creating environments where young people feel safe, supported, and able to succeed. However, some youth have experienced stress, adversity, or trauma that can make it more difficult for them to feel safe, connected, and successful. By learning how to support youth with compassion and consistency, caring adults can help buffer the effects of adversity and promote resilience.

Investigating Factors That Affect Students' Help-Seeking Strategies In A University-Level Foundational Mathematics Course, Randall I. Haws

All Graduate Theses and Dissertations, Fall 2023 to Present

Quantitative literacy, or the ability to understand and use mathematical information, is an important skill developed in college. However, required math courses can be a major obstacle for many students, and those who struggle to complete them are more likely to leave school without earning a degree. Understanding why some students seek help while others do not is key to improving student success.

This study explores how students in a university-level foundational mathematics course (college algebra) seek help and what factors influence their use of available support services. A total of 118 students completed a survey about their help-seeking behaviors, …

Causal Discovery In Photospheric Magnetic Field Time Series For Interpretable Solar Flare Prediction, Nathan W. Nelson

All Graduate Theses and Dissertations, Fall 2023 to Present

Solar flares are capable of damaging many valuable resources, including satellites, power grids, and even human lives. Being able to predict solar flares can allow for proactive measures to be taken that can prevent that damage. Many new deep learning methods for predicting solar flares have shown promise in this task, but the decisions they make are harder to explain to humans. This makes understanding why these models make mistakes difficult, which in turn makes fixing and maintaining them more challenging. We test a recent deep learning method that helps discover relationships between different measurements of the Sun as they …

Investigating The Role Of Patient-Provider Interaction Quality And Illness Interference In Patients' Basic Psychological Need Fulfillment And Subjective Well-Being, Rebecca Erin Elwood

All Graduate Theses and Dissertations, Fall 2023 to Present

Patient-provider communication occurs between patients and medical professionals. This type of communication is experienced by most U.S. adults yearly, and it can lead to positive health outcomes. The purpose of this study was to examine the role of this type of communication in patient’s lives overall. Specifically, the study considered if good quality patient-provider communication is associated with people feeling an overall sense of autonomy, competence, relatedness, and an overall positive experience of their life. It also considered how much symptoms or treatment of health issues impact people’s lives. Data in the study was collected through an online survey with …

Agronomic And Economic Evaluation Of Alternative Forage Crops Under Irrigation Technologies And Deficit Irrigation, Shikha Sharma

All Graduate Theses and Dissertations, Fall 2023 to Present

Water is becoming more limited in the western United States, including Utah, so farmers need forage crops that can produce well while using less irrigation water. This study examined how different forage crops respond to reduced irrigation and different irrigation application methods, and whether some crops can provide better economic returns under limited water conditions.

Field studies were conducted at three Utah locations, Cedar City, Logan, and Vernal, from 2020 to 2024. The alternative forage crops included teff, sorghum-sudangrass (sudex), and forage rye. For economic comparison, conventional forage crops included alfalfa, corn, and three-way small grains. Four to five irrigation …

Developing A Resilient Park For Palisade State Park: A Model For Intermountain West State Parks, Hirone T. Warner

All Graduate Reports and Creative Projects, Fall 2023 to Present

Palisade State Park in central Utah is a cherished natural resource, offering diverse recreational opportunities and serving as an important ecological habitat. However, the park faces increasing challenges due to increasing visitation and the impacts of climate change. This thesis presents a strategic master plan for Palisade State Park, designed to guide its development over the next 20 years.

Recognizing the need for a sustainable approach, this project adopts a participatory method, involving park users, residents, and environmental experts in the planning process. The goal is to create a master plan that not only addresses the park’s immediate needs but …

Park Visitor Education And Landscape Conservation: Evaluating Education-Based Strategies To Mitigate Visitor-Caused Damage In Goblin Valley State Park, Jason Beukers

All Graduate Reports and Creative Projects, Fall 2023 to Present

Goblin Valley State Park contains rare and highly fragile geological formations that are increasingly impacted through visitor-caused damage. While the park’s open-range management approach enhances recreational freedom and the visitor experience, it also leaves vulnerable hoodoo formations susceptible to vandalism and damage by visitor behavior and exploration. Balancing public access with landscape preservation remains a persistent challenge, particularly in large, protected areas where staffing, enforcement, and management resources are limited. This thesis reviews the effectiveness of management strategies, particularly education-based strategies such as signage and visitor messaging, in reducing depreciative visitor behaviors in national and state parks and other protected …

Alternate Method For Determining The Liquid Pressure Recovery Factor, Bryson H. Parker

All Graduate Reports and Creative Projects, Fall 2023 to Present

The term liquid pressure recovery factor aids in determining the flowrate through valves at the maximum flowrate under choking conditions. The pressure recovery factor can be difficult to determine for certain types of valves based on the industry standard procedure. This report looks at the current industry standard procedure and adds a procedure in the event of the industry standard not being feasible. Often it is not feasible for a testing facility to supply enough flow through the valve to reach the industry standard. The industry standard is to test the valve at the maximum flowrate with a constant upstream …

Language Learning Under Pressure: Rethinking Anxiety, Assessment, And Support In Second Language Classrooms, Bryn C. Cole

All Graduate Reports and Creative Projects, Fall 2023 to Present

This portfolio examines the role of anxiety in second language acquisition (SLA) and its impact on student performance, assessment, and overall participation. Drawing on both the author’s classroom experience and SLA research, it argues that language anxiety should be understood as a structural feature of classroom environments rather than an individual learner deficit. The paper explores how traditional assessment practices may obscure students’ underlying competence by prioritizing performance under pressure. It proposes two key shifts in response: reformatting assessments as a more flexible and context-sensitive process, and integrating peer mentorship as a form of interpersonal instructional support. Together, these approaches …

A Focus On Student Needs In German Instruction, Elisa E. Remund

All Graduate Reports and Creative Projects, Fall 2023 to Present

This portfolio serves as documentation of the author’s professional progress throughout the Master of Science of Second Language Teaching (MSSLT) program at Utah State University, shown through teaching philosophy, hands-on teaching experience and practice, and demonstrates the author’s use of pedagogical strategies and theory, including but not exclusive to comprehensible input, the sociocultural method, dynamic assessment, and the output hypothesis. It details the usage of current research-based strategies to increase classroom engagement and student proficiency, such as the IMAGE Model for teaching culture and language, collaborative learning, and dynamic assessment strategies. Furthermore, the portfolio includes a reflection on the benefits …

The Legend Of The Bear Lake Monster, Melissa Anderson Asay

All Graduate Reports and Creative Projects, Fall 2023 to Present

The Bear Lake Monster is a legend that has persisted for centuries. This monster is rooted in Shoshone oral traditions and hold the potential to be based off of fossils found in the Shoshone territory. This living legend was later amplified by Mormon settlers. One settler in particular, Joseph C. Rich, played a significant role in shaping its narrative. Though he eventually admitted to fabricating sightings to encourage settlement, belief in the creature remains alive today. The serpent’s presence in local lore has undeniably influenced the Bear Lake region, shaping both its identity and tourism industry. This legend serves as …

Historical Inquiry-Based Lessons In World History Classrooms: Creating Opportunities For Historical Thinking, Melinda Thatcher Lofland

All Graduate Reports and Creative Projects, Fall 2023 to Present

This Plan B project creates inquiry-based lessons that help students investigate the global tapestry of World History with its vast threads of transregional connections and diverse cultures that color our contemporary world and help prepare them to participate as global citizens. This project uses primary and secondary sources to create evidence-based lesson plans that will help history teachers provide opportunities for students to practice historical inquiry skills in Utah’s world history classrooms. These plans employ current scholarship and best teaching practices while following national and state standards for World History. In addition, these lessons were developed using inquiry-based historical thinking …

Criticality In A Heterogeneous Neutron Transport Rod Model, Samuel Kaleb Crowford

All Graduate Reports and Creative Projects, Fall 2023 to Present

This work studies the stochastic behavior of neutron populations in a one-dimensional rod model using Monte Carlo simulation. The first part of this project reproduces the computational results of Dumonteil, Horton, Kyprianou, and Zoia (2025) by independently implementing the Monte Carlo algorithm described in their article, with the asymptotic behavior of the first moment analyzed in relation to the dominant eigenvalue and adjoint eigenfunction of the neutron transport operator. The model is then extended to a heterogeneous setting by introducing a central region where fission is suppressed. A global expectation over initial positions and directions is used to estimate the …

Graph-Based Machine Learning For Multivariate Time Series Prediction In Scientific Domains: Streamflow Forecasting And Solar Flare Prediction, Kishore Ragul Alagarsamy

All Graduate Reports and Creative Projects, Fall 2023 to Present

Machine learning methods applied to multivariate time series data have emerged as powerful tools across a range of scientific domains. This report examines two distinct application areas in which such methods yield actionable predictive insights: hydrological streamflow forecasting and solar flare prediction in space weather.

In the domain of streamflow forecasting, a Two-Graph Spatio-Temporal Graph Neural Network (Two-Graph STGNN) was developed to predict river discharge across a 20-station network in the Upper Colorado River Basin. The architecture separates hydrological and meteorological feature streams into two complementary graph representations and fuses them through a learned attention mechanism. Systematic evaluation across 23 …