Digital Commons Network^™

Enhancing Stability And Emissions In Metal Halide Perovskite Nanocrystals Through Mn2+ Doping, Thi Thu Trinh Phan, Thi Thuy Kieu Nguyen, Trung Kien Mac, Minh Tuan Trinh

Chemistry and Biochemistry Student Research

Metal halide perovskite (MHP) nanocrystals (NCs) offer great potential for high-efficiency optoelectronic devices; however, they suffer from structural softness and chemical instability. Doping MHP NCs can overcome this issue. In this work, we synthesize Mn-doped methylammonium lead bromide (MAPbBr₃) NCs using the ligand-assisted reprecipitation method and investigate their structural and optical stability. X-ray diffraction confirms Mn²⁺ substitution at Pb²⁺ sites and lattice contraction. Photoluminescence (PL) measurements show a blue shift, significant PL quantum yield enhancement, reaching 72% at 17% Mn²⁺ doping, and a 34% increase compared to undoped samples, attributed to effective defect passivation and …

Comparison Of Gravity Waves Observed By Atmospheric Waves Experiment (Awe) And Simulated By High-Resolution Waccm-X, Jiarong Zhang, Han-Li Liu, Yucheng Zhao, Dominique Pautet, Ludger Scherliess, Michael Taylor

Space Dynamics Laboratory Publications

Outline

Data: AWE and High-Resolution Whole Atmosphere Community Climate Model with thermosphere and ionosphere extension (HR-WACCMX) simulation

• Quantify gravity wave (GW) activity
• Compare GW activity observed by AWE and simulated by high-resolution WACCMX
• GW activity over Western Europe

City & Town Perspectives On Water Management In Utah: Descriptive Report Of Survey Findings, Bailey M. Holdaway, Courtney G. Flint

Environment and Society Student Research

In an effort to better understand the water management practices of municipalities in Utah, surveys were conducted with city and town representatives. These surveys aimed to capture insights across a variety of key topics related to water resource management. A brief overview of survey methods is provided followed by findings organized by question topic.

Near-Earth Object (Neo) Surveyor Introduction “Neos”, Brent Carlsen

Space Dynamics Laboratory Publications

NEOS

- Near-Earth Object Surveyor (NEOS)

- Its Mission

- Its Importance

- How it’s built

- What you will see today

• Where piece parts were made
• Where it will be assembled
• Where it will be tested

Attitude Determination & Control Algorithms, Utah State University Space Dynamics Laboratory

Space Dynamics Laboratory Publications

Purpose

• Quick-look overview of all elements of ADCS (e.g. this control loop)
• Give references and terminology but not the complete "how-to"

Microstructure-Based Homogenization Of Elastic Properties In Additively Manufactured Thermoplastic Composites, Md Tareq Hassan, Samiul Alam, Juhyeong Lee

Mechanical and Aerospace Engineering Student Publications and Presentations

Additive manufacturing (AM) of fiber-reinforced thermoplastic composites has emerged as a promising technology, enabling the fabrication of lightweight, complex geometries with reduced material waste and lower production costs. Among various AM methods, composites-based additive manufacturing (CBAM) has gained attention for its rapid prototyping and producing parts with enhanced mechanical properties. Regardless of these benefits, CBAM-printed composites may inherently possess a certain level of defects introduced during the manufacturing process, such as voids, microcracks, and non-uniform porosity. To address these challenges, understanding the relationship between microstructural characteristics and effective mechanical properties is critical. Micro-computed tomography (μCT) is a powerful technique for …

Using Robot Toys To Play With Math, Space, And Coding: Children's Development Of Computational And Mathematical Thinking, Jessica Shumway, Jody Clarke-Midura, Deborah Silvis, Boram Lee, Anahita Ashineh, Camille Lund, Asmaa Yazidi Alaoui, Alissan Sarturato Firão, Makayla Rogers

Spatial Activities and Robot Coding (SPARC)

• CT as "the thought processes involved in formulating a problem and expressing its solution(s) in such a way that a computer—human or machine—can effectively carry out" (Wing, 2014)

Enhancing Digital Accessibility For Deaf Or Hard Of Hearing Learners- Innovative Strategies For Inclusive Education, Felicia Rutledge Ph.D.

Developmental Disabilities Network Journal

This research-to-practice brief explores innovative strategies to enhance digital accessibility for Deaf or Hard of Hearing (D/HH) learners, focusing on practical applications for inclusive K-12 education. Despite advances in digital learning, D/HH learners face unique barriers due to auditory-centered designs. Accessibility legislation such as the ADA, Section 504, and IDEA mandate educational inclusion for these learners. Key strategies include the integration of assistive technologies (e.g., captioning, ASL video interpretation), the application of the Universal Design for Learning (UDL) 3.0 guidelines, and adherence to WCAG 2.1 principles for accessible content design. The research-to-practice brief provides actionable insights for educators, administrators, and …

Shifting To A Culture Of Inclusion By Design: Applying A Mixed-Methods Approach To Advance Accessibility Of Public Health Emergency Information & Communication Technology, Jessica L. Franks, Erin Vinoski Thomas

Developmental Disabilities Network Journal

Adults with intellectual and developmental disabilities (IDD) experience inequities in access to timely, accurate, and understandable information and communication technology (ICT), which increases risk for public health emergency (PHE)-related health disparities and impedes opportunities to achieve optimal health. This study assessed federal COVID-19 webpage accessibility levels and explored existing knowledge of and experience with filing accessibility complaints for federal ICT among adults with IDD. Through a mixed-methods approach, we evaluated compliance with accessibility standards for 18 federal agencies’ COVID-19 webpages (study 1) and interviewed 16 adults with IDD about experiences accessing federal webpages and filing accessibility complaints (study 2). We …

Enhancing Online And Blended Course Design Through Conversations And Observations: The Role Of Stakeholders, Chris Smith, Darlene Schaefer, Geetanjali Soni, Thomas Cooper, Meghan Mcgrath

Developmental Disabilities Network Journal

Online course enrollment for K-12 students has increased dramatically since the early 2000s. This has resulted in promising opportunities for students with disabilities but also requires careful consideration of accessibility in course design and instructional delivery. This mixed-methods study investigated how stakeholder feedback influences the design of blended courses at North Carolina Virtual Public School (NCVPS), a graduation pathway for students with disabilities requiring significant support. Data was collected through surveys of NCVPS online teachers and co-teachers, analysis of course history documents, and the NCVPS student registration system. Findings revealed that educators often modify course templates to accommodate diverse learning …

Detecting Burn Severity And Vegetation Recovery After Fire Using Dnbr And Dndvi Indices: Insight From The Bosco Difesa Grande, Gravina In Southern Italy, Somayeh Zahabnazouri, Patrick Belmont, Scott David, Peter E. Wigand, Mario Elia, Domenico Capolongo

Watershed Sciences Faculty Publications

Wildfires serve a paradoxical role in landscapes—supporting biodiversity and nutrient cycling while also threatening ecosystems and economies, especially as climate change intensifies their frequency and severity. This study investigates the impact of wildfires and vegetation recovery in the Bosco Difesa Grande forest in southern Italy, focusing on the 2017 and 2021 fire events. Using Google Earth Engine (GEE) accessed in January 2025, we applied remote sensing techniques to assess burn severity and post-fire regrowth. Sentinel-2 imagery was used to compute the Normalized Burn Ratio (NBR) and Normalized Difference Vegetation Index (NDVI); burn severity was derived from differenced NBR (dNBR), and …

Combining N-Mixture And Occupancy Analysis Offers A More Complete Picture Of Carnivore Habitat Use In Northeastern Türkiye, J. David Blount, Austin M. Green, Mark Chynoweth, Emrah Çoban, Josip Kusak, Çağan H. Şekercioğlu

Wildland Resources Faculty Publications

Occupancy and N-mixture analyses have been successfully used to understand habitat use in various species. However, since these methods fundamentally answer different questions about wildlife distribution, the results from each modelling approach may provide different insights into species’ habitat use. In this study, we leveraged data from a long-term camera trapping study in northeastern Türkiye to compare the results from occupancy and N-mixture analyses, with the main objective of understanding how the modelling approach used can influence our knowledge of species’ habitat use. Specifically, we compared the habitat use preferences from N-mixture and occupancy analyses for three carnivore species with …

Laying The Groundwork: Building Long-Term Community Partnerships Across A Shared Curriculum, Juliana Chow, Eric Robertson, Kate Magargal

Utah Conference on Community Engagement

Maintaining long-term community partnerships is a major challenge for community-engaged classrooms. This poster presents a community-engaged learning (CEL) program template for a project shared between multiple courses and instructors, demonstrating how shared resources, skill sets, relationships, and coordination could result in a long-term community partnership linked to multiple community networks. It shows how 3 courses at the Honors College of the University of Utah can weave together learning objectives and cooperative planning for a course module focused on the Native Plants Program, part of the U of U Climate Action Plan.

An Adaptation Of Nonlinear Aerodynamic Models For Non-Traditional Control Effectors, Christian R. Bolander, Douglas F. Hunsaker

Engineering Education Faculty Publications

This paper presents the development of a novel aerodynamic model tailored for the Bio-Inspired Rotating Empennage (BIRE), a non-traditional fixed-wing aircraft empennage inspired by avian flight. The BIRE replaces the conventional vertical stabilizer with an extra degree of freedom for the horizontal stabilizer, which is allowed to rotate about the body-fixed x axis. This empennage is similar to the tail of a bird, and allows control of both longitudinal and lateral moments. However, such a design introduces complex nonlinear longitudinal and lateral aerodynamic interactions, not typically accounted for in most fixed-wing aircraft aerodynamic models below stall. This work presents a …

Guidance And Lessons Learned For Instructors Seeking To Add Video Creation To Their Skill Set, Wendy A. Swenson Roth

Journal on Empowering Teaching Excellence

Access the online Pressbooks version of this introduction here.

Videos have entered the classroom, whether for online asynchronous courses or as supplementary information in synchronous classes. COVID-19 accelerated the pace of online and video learning but left instructors with little time to explore the optimal use of this technology. Nonetheless, videos are here to stay, raising questions about what unique choices faculty must make when implementing them and what new skills are required as videos become additional content delivery sources. The following article provides implementation guidance and lessons learned for instructors seeking to add video creation to their skill set.

The Role And Influence Of Faculty As Predictors For Retention And Satisfaction Among Generation Z, Katelyn Romsa, Stephani Jarecke, Jessie H. Hendricks, Bryan Romsa

Journal on Empowering Teaching Excellence

Access the online Pressbooks version of this introduction here.

While previous research has established that faculty and their interactions with students have had the greatest impact on student retention and satisfaction for centuries, limited studies have been done to understand how faculty are influencing Generation Z, our newest generation of students in higher education. This study examined how the quantity of faculty interactions is impacting student retention and satisfaction among 342 Generation Z first-year college students at a public land-grant institution in the Midwest using the National Survey of Student Engagement instrument. In a Mann-Whitney U test, significant difference was …

Full Issue: Journal On Empowering Teaching Excellence, Volume 9, Issue 1, Spring 2025

Journal on Empowering Teaching Excellence

The full-length Spring 2025 issue (Volume 9, Issue 1) of the Journal on Empowering Teaching Excellence

Access the online Pressbooks version (with downloadable EPUB format) here.

The issue includes five articles addressing challenges in higher education: faculty-student interactions with Generation Z students, experiences of first-generation single-mother college students, implementation of an interdisciplinary museum studies course, guidance for creating educational videos, and a book review on resistance to change in higher education. The journal emphasizes practical strategies for effective teaching, inclusivity, and innovative approaches to pedagogy across various educational contexts.

Making Visible Leadership Characteristics And Actions In Fostering Collective Teacher Efficacy: A Cross-Case Study, Donald R. Mendenhall, Suzanne H. Jones, Leann G. Putney

Teacher Education and Leadership Faculty Publications

Poverty can contribute to students' struggles with academic success, yet these struggles may be mitigated in schools with high levels of collective teacher efficacy (CTE). The purpose of this study was to identify effective Title I-eligible schools, serving a high percentage of financially disadvantaged students, while also maintaining high levels of CTE. Two schools were selected for cross-case analysis to explore how leadership characteristics and actions nurtured and sustained schoolwide CTE. The methodology used in this study was a qualitative cross-case analysis. The researchers purposefully selected the schools as cases based on the level of CTE existing in the schools. …

Precision Hinges For Origami Space Arrays, Jake Sutton, Trevor Carter, Davis Wing, Brooklyn Clark, Fisk Lundgreen, Spencer Magleby, Mark Stephen, Nathan Usevitch, Larry L. Howell

Utah Space Grant Consortium

Optical satellite performance improves with increased surface area, which enhances light capture and sensor input. Deployable array mechanisms allow satellites to remain compact during launch and expand in orbit. This study focuses on designing passive hinges in rigid-panel origami-based deployable satellites for optical applications. A novel kinematic coupling method is developed, incorporating magnets, compact Lamina Emergent Torsional (LET) joints, and principles from Maxwell couplings. This system autonomously achieves precise alignment without motorized actuation reducing complexity. The design process involved iterative testing of ten two-panel hinge prototypes to identify the most effective designs. These were integrated into a degree-four vertex pattern …

Reconstruction Of Cad Models Into Analysis-Ready Single Trimmed Surfaces With Aerospace Applications, Rebecca Rasmussen, Royce Pablo Harline, Kendrick Shepherd

Utah Space Grant Consortium

Classical methods by which computer-aided design (CAD) geometries are represented for both design and analysis involve meshing. However, the current process of converting a CAD model into an analysis-suitable surface mesh takes a significant amount of time and labor [23, 4, 18], results in a faceted representation of the original smooth geometry, and generates representations that are prohibitively expensive for use in high-order explicit dynamics computations [35, 9].

This research focuses on accurately and efficiently rebuilding given CAD surfaces or meshes, such as shell-like components of aeronautical structures or automotive vehicles, into smooth, single trimmed spline surface approximations (rather than …

Poly(2-Methyl 1-Pentene Sulfone) (Pmps) As A Potential Oxidation Retardant For Aluminum Mirrors For Space Telescopes, Kira Sand, Matthew Clarkson, Morgan Peterson, David Allred

Utah Space Grant Consortium

The reflectivity of aluminum mirrors, essential for capturing high-quality far-ultraviolet (FUV) images in space telescopes, is compromised by oxidation caused by exposure to Earth's atmosphere. Barrier coatings like magnesium fluoride can protect aluminum but still permit slow oxidation over time. To address this, we propose using photodegrading polymer films, which depolymerize under UV light in a vacuum, as a protective coating for aluminum mirrors until they exit Earth's atmosphere. Our research focuses on Poly(2-methyl 1-pentene sulfone) (PMPS), which depolymerize when exposed to ultraviolet light in vacuum, ensuring stability until reaching space.

Multiple Wavepacket Decomposition Of F404 Engine Military Jet Noise, Tyce W. Olaveson, Kent L. Glee

Utah Space Grant Consortium

Jet noise sources are challenging to measure directly due to the extreme environment. Inverse methods, such as acoustic beamforming, using data collected near these sources can be used to construct equivalent source models that accurately describe the acoustic radiation. However, generating these models for a complex source can require thousands of parameters for a complete description. To address this challenge, a multiple wavepacket decomposition is introduced, reducing the source model into a set of analytic wavepackets, which recreate the full-rank model. This paper provides an overview of the decomposition procedure and applies it to acoustic data collected near a T-7A-installed …

Bistatic Continuous Wave Radar Using Sdrs, Matthew Finger

Utah Space Grant Consortium

This paper describes a research project at Weber State University (WSU) to create a small-scale passive-bistatic radar (PBR) using a low-cost software-defined-radio (SDR). SDRs have improved (in terms of performance versus cost) to where an affordable, low-power, receive-only radar system may be used in suitable RF environments.

The initial effort will generate a PBR testbed. Controlled measurement campaigns will validate radar-signal processing algorithms using two-dimensional geometries with a controllable transmitted signal. Follow-on research will integrate a two-element phased-array antenna at the receive SDR.

Analysis Ready Aerospace Wing Assembly Reconstruction Using Parameterization, Brian Shawcroft, Kendrick Shepherd

Utah Space Grant Consortium

Accurate analysis of structures in the design process are often labor intensive and computationally expensive. Isogeometric analysis (IGA) provides potential to better connect the design through analysis process and converge to accurate results more quickly. Here, methods are proposed to help in the goal of automating the process of converting design geometry to an analysis suitable model for IGA. This is done by using tools previously built in combination with a motorcycle graph algorithm to extract quadrilateral layouts of the intended geometry. This method will be demonstrated by reconstructing and analyzing an airplane structure.

A Novel Modular Spherical Joint For Truss Robots, Ivyann O. Running, Simon Charles, Eli Francom, Bryce Parkinson, Adam Rose, Hunter Pruett, Larry Howell, Nathan Usevitch

Utah Space Grant Consortium

Truss robots and structures are beneficial for lunar missions because of their high strength-to-mass ratio. Even better are robots and structures that are highly modular, allowing the same materials to be rearranged to perform various tasks. The joints of these robots are what must be connected and disconnected to create different truss forms. Therefore, it is necessary to develop highly mobile, modular spherical joints that allow multiple truss elements to attach. Moreover, these joints must be resistant to the lunar regolith. Our contribution in this paper is the design of a new spherical joint and its application to an isoperimetric …

Bi-Level Route Optimization And Path Planning With Hazard Exploration, Grant Stagg, Cameron K. Peterson

Utah Space Grant Consortium

Effective risk monitoring in dynamic environments such as disaster zones requires an adaptive exploration strategy to detect hidden threats. We propose a bi-level unmanned aerial vehicle (UAV) monitoring strategy that efficiently integrates high-level route optimization with low-level path planning for known and unknown hazards. At the high level, we formulate the route optimization as a vehicle routing problem (VRP) to determine the optimal sequence for visiting known hazard locations. To strategically incorporate exploration efficiency, we introduce an edge-based centroidal Voronoi tessellation (CVT), which refines baseline routes using pseudo-nodes and allocates path budgets based on the UAV's battery capacity using a …

Dynamic Riskscapes For Prey: Disentangling The Impact Of Human And Cougar Presence On Deer Behavior Using Gps Smartphone Locations, Heather N. Abernathy, Mark A. Ditmer, David C. Stoner, Kent R. Hersey, Kathryn A. Schoenecker, Pat J. Jackson, Kristin N. Engebretsen, Julie K. Young, George Wittemyer

Wildland Resources Faculty Publications

Prey species adjust their behavior along human-use gradients by balancing risks from predators and humans. During hunting seasons, prey often exhibit strong antipredator responses to humans but may develop tolerance in suburban areas to exploit human-mediated resources. Additionally, areas with high human activity may offer reduced predation risk if apex predators avoid such locations. This study examined mule deer Odocoileus hemionus behavioral responses to risks from humans and their primary predators, cougars Puma concolor, contextualized by differences in risk levels between study sites, individual risk exposure, and human habituation. We framed our investigation using three non-mutually exclusive hypotheses: (H1) …

Ability Of Strained C Atoms To Act As An Electron Donor, Mariusz Michalczyk, Wiktor Zierkiewicz, Steve Scheiner

Chemistry and Biochemistry Faculty Publications

There is a great deal of strain within the propellane and pyramidane hydrocarbon molecules. Quantum chemical calculations evaluate how this strain affects the ability of the bridgehead C atom to act as an electron donor in hydrogen, halogen, chalcogen, pnicogen, and tetrel bonds, despite the absence of a formal C lone pair or CC multiple bond. The strain induces the formation of a substantial region of negative electrostatic potential on this C atom which can attract the σ-hole of an electrophile. Each such molecule also contains an occupied molecular orbital that can be described as either a C lone pair …

Transportation’S Influences On Wellbeing: A Literature Review And Scoping Framework, William Bouck, Patrick Singleton, Louis Alloro, Kim Clark

Curiosity

This study investigates the relationship between transportation and wellbeing: the conditions humans need to flourish at all levels. Using the results gleaned from our literature review of 44 articles, we found correlations linkages between transportation elements and components of physical, psychological, economic, and social wellbeing. These transportation factors affected overall wellbeing, not merely wellbeing during travel. We find that active travel, followed by public transit, are the best travel modes for wellbeing, and that congestion, pollution, and transport disadvantage harm wellbeing. Our findings also indicate that multimodal, people-focused infrastructure corresponds to higher wellbeing. Generally, the four areas of wellbeing we …

Near-Earth Object (Neo) Surveyor Development: Challenges And Opportunities In Support Of Planetary Defense, G. Loftus, B. Carlsen, P. Scott, S. Backlund, L. Reinhart, T. Martin, T. Hoenes, R. Burgon, S. Ashby, J. Peterson, B. Lamborn, J. Bowman

Space Dynamics Laboratory Publications

The Near-Earth Object (NEO) Surveyor mission is a key element in our future planetary defense portfolio, which will survey our solar system in the infrared to discover and characterize asteroids and comets.

The mission is designed to detect, track, and characterize small bodies throughout our solar system. By United States Congress mandate, NASA must discover more than 90% of all asteroids and comets that are larger than 140 meters in diameter and could potentially impact Earth. NEO Surveyor will provide critical decision support for stakeholders who must assess the risks of NEO impacts to Earth and identify potential mitigation strategies. …