Digital Commons Network^™

Harnessing Cubesat Technology For Precision Pesticide Management In Egyptian Agriculture, Motaz El Sayed, Salem Abdou, Abdelhamid Sherif

Small Satellite Conference

This paper presents the development of an autonomous spraying robot designed to optimize agricultural practices through precise pesticide application, facilitated by the integration of real-time satellite data. The robot utilizes multispectral imaging from satellites, including NDVI and thermal data, to assess crop health and identify specific needs for intervention. The system aims to significantly reduce the volume of chemicals used in farming by targeting only the areas that require treatment, thus minimizing environmental impact while maintaining or enhancing crop yield. By employing advanced algorithms for data processing and machine operation, the robot autonomously navigates through fields, delivering pesticides in an …

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 …

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 …

A Hardware-In-The-Loop Star Tracker Testbed, Ashley Haraguchi

Small Satellite Conference

As the use of small satellites for advanced space missions continues to grow, the importance of low mass and cost three axis attitude stabilization systems is increasing as well, which means high accuracy attitude knowledge is required. Star trackers provide the most accurate attitude knowledge of any type of attitude sensor, but their high cost, size, and weight can be prohibitive to small satellite missions. Many simple star trackers have been developed using commercial-off-the-shelf camera sensors and processing hardware, but the challenge remains in testing and characterizing these devices. Common methods involve night sky tests, where the star tracker is …

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 …

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 …

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 …

Cutting Propagation Of 'Coy' Alder-Leaf Mountain Mahogany, Asmita Paudel, Youping Sun, Atanda Samuel Oladejo

Plants, Soils, and Climate Faculty Publications

‘Coy’ alder-leaf mountain mahogany (Cercocarpus montanus) is a new cultivar developed from a species native to the western United States with potential for use in xeriscaping, rock gardens, and water-efficient landscaping. However, efficient propagation methods are not well developed for it. In this study, cutting propagation of ‘Coy’ alder-leaf mountain mahogany was investigated over 3 years to evaluate the effects of wounding method, rooting hormone, type of cuttings collected, and time for cutting collection on rooting. In May, Jul, and Sep 2020, 2021, and 2022, nondormant hardwood subterminal cuttings and/or semihardwood terminal cuttings were collected for wounding studies. …

Gps-Denied Navigation Using Location Estimation And Texel Image Correction, Nikolas I. Jensen

All Graduate Theses and Dissertations, Fall 2023 to Present

In recent years, the use of small drones, also categorized as small Unmanned Aerial Vehicles (sUAV), has surged. They are used for tasks like surveying land, collecting data from a distance, and performing maneuvers for military operations. These drones are popular because they are affordable, small, easy to use, and can navigate well in complex areas. These factors make them a cheap and quick option for tasks like surveying and surveillance when compared to traditional methods.

This thesis introduces a system that uses algorithms to figure out where the drone is. Typically, this relies on sensors and GPS, but GPS …

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 …

Using Digitized Building And Weather Records To Improve The Accuracy Of Ground To Roof Snow Load Ratio Estimations, Gideon Parry

All Graduate Theses and Dissertations, Fall 2023 to Present

Reliability target loads refer to the amount of accumulated snow a roof needs to be able to support to ensure that the probability of collapse is sufficiently low. Since ground snow weight, or load, is much easier to measure than roof snow load, models for roof snow loads rely on ground snow load measurements along with a statistical model that estimates roof snow retention as a ratio of the measured ground snow load. This thesis focuses on improving the roof snow retention model using data from Canadian case studies that include information about building geometry and local wind speeds. This …

Take A Seat: The Impact Of Three Classroom Seating Arrangements On Individual Student Performance, Mikayla Camacho

All Graduate Theses and Dissertations, Fall 2023 to Present

This study tested three common classroom seating arrangements: rows and columns, groups, and semicircle. It tested various seating arrangements to determine which one works best for young students who struggle with staying on task and tend to be disruptive. Researchers also studied if students did their work correctly and finished on time and what both students and teachers thought about the seating arrangements. Four students were observed in the different seating arrangements, and 10 students and one teacher were asked to answer questions about the different types of seating arrangements. The students' focus and behavior improved with semicircle seating; whereas, …

How Are Global Trade Relationships Affected By Western Sanctions?, Colin A. Martinez

All Graduate Reports and Creative Projects, Fall 2023 to Present

Do sanctions actually have an impact on their intended targets? This paper seeks to fill a gap in the existing literature on the effectiveness of sanctions by measuring potential impacts on the trade relationships of targeted states after the imposition of sanctions. To do so, it turns to a comprehensive dataset that combines all trade and sanctions data for each of 229 states, arranged in 23,132 dyads, from 2000 through 2019. It then examines 792 regressions using a hybrid fixed effects difference-in-difference model applied to twelve different types of sanctions, differentiated by the sanctioning state’s membership in certain groups of …

Evaluation And Improvement Of The Design 4 Every Drop Course, Kenzy Fogle

All Graduate Reports and Creative Projects, Fall 2023 to Present

Utah and the greater Intermountain West are experiencing a water crisis. Many factors are contributing to this situation, including an arid climate exacerbated by climate change, rapid population growth, and a high-water-demanding landscape typology. Landscapes currently consume an estimated 60-80% of Utah’s potable water, representing a significant opportunity for water savings. However, changing the traditional water-dependent landscape typology requires educating the public regarding water-wise landscape design processes, best practices, and implementation approaches. Utah State University is the land grant university for Utah and home to one of the oldest Landscape Architecture departments in the Intermountain West. Utah State University’s community …

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 …

Analyzing Market Dynamics: Effects On Quality Grade Premiums And Discounts For Alfalfa Hay, Colby Wilkins

All Graduate Reports and Creative Projects, Fall 2023 to Present

This paper looks at how market strength affects the price premiums and discounts associated with alfalfa hay quality grades. Previous research has mainly focused on how attributes of alfalfa hay influence the price received. In this study, we use ordinary least squares linear regression and visual data representations to examine the effects of market strength on price received in conjunction with hay quality. The results demonstrate that during periods of relatively high average prices of alfalfa hay there is no significant impact on the average premiums and discounts associated with hay quality. However, during periods of relatively low average prices, …

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 …

Balancing The Scales: Evaluating Variables Of Greatest Impact To Profit Margins When Finishing Cattle, Ryan Bake

All Graduate Reports and Creative Projects, Fall 2023 to Present

This study examines the risk associated with finishing cattle in a feedlot, specifically in the context of historically high cattle prices and quality grade grid marketing systems that have not adjusted to these elevated prices. The analysis also looks at performance factors that drive profitability differences in pens of cattle in a commercial feedlot, and how market factors also impact profitability. Regression analysis determines the significance of performance variables such as days on feed, average daily gain, feed conversion rates, and carcass characteristics on pen profitability. The impact of cattle breeding and pre-feedlot management of the cattle are also considered …

Token Economies And Implementation In General Education Classrooms, Ana Kesler

All Graduate Reports and Creative Projects, Fall 2023 to Present

Previous studies have shown the positive effects token economies can have on student behavior. The current project examined the implementation and effects on student behavior of creating a tier two behavior intervention system based on student preferences for reinforcers and using token economies in a general education first grade classroom. Based on the Assessment portion of the project, five students would benefit from a token economy behavior intervention system. The author collaborated with general education school personnel to design and implement a token economy for each of the students. Using the token economy with preferred reinforcers positively impacted four of …

Tales In The Teeth: Using Isotopic Analysis To Understand The Paleoecology And Social Behavior Of Brontotheres Of The Intermountain Basins During The Middle Eocene, John Michael Michalski

All Graduate Reports and Creative Projects, Fall 2023 to Present

Isotopic analysis has been a common practice used in paleontology to study ancient ecosystems, and the lives of animals therein. Oxygen isotopic analysis is of particular importance not only because of its use in studying paleoecology, diet, and migration, but also its use in studying mountain elevation, and its impact on ancient ecosystems. I use stable oxygen isotopic analysis to study the habits and ecology of brontotheres from intermountain basins surrounding the Uinta Mountains of Utah and Wyoming, USA. I studied the oxygen isotopes from 16 fossil specimens of teeth, most of which belonged to brontotheres, including the genera Palaeosyops …

Leveraging Generative Ai For Sustainable Farm Management Techniques Correspond To Optimization And Agricultural Efficiency Prediction, Samira Samrose

All Graduate Reports and Creative Projects, Fall 2023 to Present

Sustainable farm management practice is a multifaceted challenge. Uncovering the optimal state for production while reduction of environmental negative impacts and guaranteed inter-generational assets supervision needs balanced management. Also, considering lots of different factors (cost, profit, employment etc), the agricultural based management technique requires rigorous concentration. In this project machine learning models are applied to develop, achieve and improve the farm management techniques. This experiment ensures the resultant impacts being environment friendly and necessary resource availability and efficiency. Predicting the type of crop and rotational recommendations will disclose potentiality of productive agricultural based farming. Additionally, this project is designed to …

The Effects Of The Performance Diagnostic Checklist-Human Services Non-Indicated Intervention On Improving Documentation Notes, Leigha Thorum

All Graduate Theses and Dissertations, Fall 2023 to Present

The Performance Diagnostic Checklist-Human Services (PDC-HS) is an assessment used in human service settings to determine effective interventions to improve employee performance. In this study, we used the PDC-HS assessment to help find a type of training that would best improve the quality of session note documentation completed by RBTs® in an autism clinical setting. The participating RBTs® all showed an increase in documentation quality during the non-indicated intervention phase. The results suggest that the PDC-HS non-indicated intervention was effective in improving RBT® performance in completing session note documentation and further research should be conducted to study the impact of …

Reactivity On Student On-Task Behavior: An Analysis Of On-Task Operational Definitions And Observer Presence On Student Behavior, Daria G. Fuell

All Graduate Theses and Dissertations, Fall 2023 to Present

This study examines student engagement during academic tasks, specifically investigating how the presence and type of observer affect student performance. The objective was to understand the influence of different observer conditions—no observer, an observer behind an observation window, a researcher in the session room, and a caregiver in the session room—on student behavior. Using a multi-element design, the study assessed three measures: active on-task behavior, passive on-task behavior, and academic work completion. The literature review identified a lack of recent research on how students respond to adult observers during academic tasks and highlighted the variability in definitions of engagement. To …

Applying Implementation Supports To Professional Development To Improve Implementation Of The Caught Being Good Game, Dylan Zimmerman

All Graduate Theses and Dissertations, Fall 2023 to Present

Disruptive behavior in the classroom can cause challenges for both teachers and students, creating high levels of teacher stress and preventing students from accessing academic instruction. Training on evidence-based classroom management is often resource-intensive and has inconsistent impact on teacher behavior in the classroom. The purpose of this study was to investigate the impact of professional development on paraprofessionals' treatment fidelity of the Caught Being Good Game. We used a multiple baseline design to provide a tiered model of professional development to provide the least intensive level necessary to support implementation. Results indicate that all four teachers successfully implemented most …

The Utah State University Ambassador Program: Predictors Of Acceptance And Rural High School Representation, Mariah P. Spencer

All Graduate Theses and Dissertations, Fall 2023 to Present

The Utah State University Ambassador Program focuses on leadership, recruitment, and service. In addition to the Logan Main Campus, there are ambassadors on the USU Eastern and Statewide Campuses. The Logan Program is the most competitive, receiving 450-700 applications each year. Selected applicants receive a scholarship of 100% tuition and fees renewable for up to four years. This study looked at what factors predict whether students are accepted into the University Ambassador Program in Logan for in-state and out-of-state first-year applicants. Factors considered included involvement in student government, school and community activities, whether the student is the first in their …

Federated Learning In Wireless Networks, Xiang Ma

All Graduate Theses and Dissertations, Fall 2023 to Present

Artificial intelligence (AI) is transitioning from a long development period into reality. Notable instances like AlphaGo, Tesla’s self-driving cars, and the recent innovation of ChatGPT stand as widely recognized exemplars of AI applications. These examples collectively enhance the quality of human life. An increasing number of AI applications are expected to integrate seamlessly into our daily lives, further enriching our experiences.

Although AI has demonstrated remarkable performance, it is accompanied by numerous challenges. At the forefront of AI’s advancement lies machine learning (ML), a cutting-edge technique that acquires knowledge by emulating the human brain’s cognitive processes. Like humans, ML requires …

Trip Production Models For Persons With Disabilities, Pouyan Saeidian

All Graduate Theses and Dissertations, Fall 2023 to Present

Nearly 13% of the US population consists of people with disabilities, yet finding an equitable and comprehensive approach to meet their travel needs remains a challenge. Our research delves into the mobility patterns of people with disabilities to understand how their daily travel—both the frequency of trips and the distance covered—compares to those without disabilities. We also explore the factors influencing their travel behaviors and how these insights can guide policymakers in improving accessibility and mobility for this community. Utilizing data from the 2022 US National Household Travel Survey, we applied a blend of statistical analysis and machine learning methods. …

Fishing Vessel Detection In Exclusive Economic Zones From Low Earth Orbit Satellites With Power And Computational Constraints, Kyler E. Nelson

All Graduate Theses and Dissertations, Fall 2023 to Present

Illegal fishing activities pose a significant threat to the sustainability of marine ecosystems and the economies and societies which rely on them. Detection of fishing vessels engaging in illegal activity is difficult, as many ships engaging in such activity actively avoid detection through radio systems used for maritime traffic monitoring. Satellite imagery provides a promising means for detecting fishing vessels, though designing an effective system is difficult due to limited availability of labeled image datasets of fishing vessels. This research proposes a system to detect illegal fishing activity through the use of a low-power ship detection satellite and proposes a …

Cyclical Patterns Of Self-Regulated Learning In College Students, David N. Longhurst

All Graduate Theses and Dissertations, Fall 2023 to Present

Zimmerman’s self-regulated learning (SRL) model is a cyclical approach to learning where learners use several processes to facilitate learning or to perform a skill within many domains. Zimmerman’s model describes three phases including forethought, performance, and self-reflection, which occur respectively before, during, and after a task. Theoretically, these phases interact in a cyclical feedback loop in which a person cognitively interacts with a task before, during, and after the activity and continuously do so independently. This model has been the basis for several school-based intervention programs. Those programs have been studied regarding academic outcomes and efficacy; however, less research has …

Creating A Virtual Hierarchy From A Relational Database, Yucong Mo

All Graduate Theses and Dissertations, Fall 2023 to Present

In data management and modeling, the value of the hierarchical model is that it does not require expensive JOIN operations at runtime; once the hierarchy is built, the relationships among data are embedded in the tree-like hierarchical structure, and thus querying data could be much faster than using a relational database. Today most data is stored in relational databases, but if the data were stored in hierarchies, what would these hierarchies look like? And more importantly, would this transition lead to a more efficient database? This thesis explores these questions by introducing a set of algorithms to convert a relational …