Digital Commons Network^™

Fatigue Life Predictions Of Additively Manufactured Components For Satelite Structures, Daniel G. Miller, Ryan A. Kemnitz, Ramana V. Grandhi, Luke C. Sheridan

Small Satellite Conference

The fatigue life properties of Additive Manufactured (AM) components are limited due to the defects naturally generated from the AM Process. For limited design life problems the finite fatigue life El-Haddad model linked defect size, applied stress, and design life. This paper developed a method to predict the smallest defect of interest for a given load case and the lowest failure generating stress for a given defect size. Experimental testing validated the method steps. The model was adjusted to demonstrate the space utility based on a 12U CubeSat chassis. Applying the design life and expected load, the finite fatigue life …

Autonomous System-Level Fault Diagnosis In Satellites Using Housekeeping Telemetry, Evana Gizzi, Hayley Owens, Nicholas Pellegrino, Christopher Trombley, James Marshall, Jivko Sinapov

Small Satellite Conference

To continue the growing success of scientific discovery through deep space exploration, missions need to be able to be able to travel further and operate more efficiently than ever before. To ensure resilience in this capability, on-board autonomous fault mitigation methods must be developed and matured. To this end, we present a system for cross-subsystem fault diagnosis of satellites using spacecraft telemetry. Our system leverages a combination of Kalman Filters, Autoencoders, and Causality algorithms. We test our system for accuracy against three data sets of varying complexity levels, along with baseline testing. Additionally, we perform an ablation study to evaluate …

A University Deep Space Cubesat Mission: Lessons Learned From The University Of Colorado Boulder Earth Escape Explorer (Cu-E3), Brodie Wallace, Scott Palo, John Sobtzak

Small Satellite Conference

The University of Colorado Boulder Earth Escape Explorer (CU-E³) CubeSat is a student designed and built CubeSat initially slated for launch into deep space on Artemis-1, the inaugural launch of the NASA Space Launch System (SLS). CU-E³ was designed to compete in the Cube Quest Challenge’s (CQC) Deep Space Derby for monetary prizes associated with deep space communication system performance, while also serving as a technology demonstration platform for a series of innovative university CubeSat technologies and practices, including a low-cost X-band CubeSat transmitter, an X-band reflectarray antenna, and the use of solar radiation pressure to control …

Regolith And Host Rock Influences On Co2 Leakage: Active Source Seismic Profiling Across The Little Grand Wash Fault, Utah, Lee M. Liberty, Jonathan Yelton, Elin Skurtveit, Alvar Braathen, Ivar Midtkandal, James P. Evans

Geosciences Faculty Publications

Understanding carbon dioxide (CO₂) reservoir to surface migration is crucial to successful carbon capture and sequestration approaches; especially fault/reservoir interactions under injection pressure. Through seismic imaging, we explore regolith and shallow stratigraphy across the Little Grand Wash fault. The presence of natural CO₂ seeps, travertine and tufa deposits confirm modern and ancient fault-controlled CO₂ leakage. We consider this an analogue for a long-failed sequestration site. We estimate bulk porosity and fracture density for host rock, regolith, and fault zone from petrophysical relationships. When combined with existing geochemical and geological data, we characterize a 60 m wide …

Level Down To Level Up: The Impact Of Item-Level Description On Finding Aid Discoverability, Paul Daybell, Andrea Payant, Becky Skeen, Liz Woolcott

Library Faculty & Staff Presentations

Utah State University Libraries Cataloging and Metadata Services unit investigated the discoverability of local Encoded Archival Description (EAD) finding aids using different levels of description. The research team created two nearly identical versions of the same finding aid for five collections and posted them online. The only difference in the finding aids was the level to which the collection contents were described. For each collection, one version of the finding aid was described at the file (box or folder) level and the other version was described at the item level. Over a year later the team pulled the analytics for …

Ground Support Equipment (Gse) Eat, Utah State University Space Dynamics Laboratory

Space Dynamics Laboratory Publications

About this Presentation

• This presentation was developed as a “taste” of the area of GSE
• There are lots of resources that can be found about GSE and how it should be used
• While I have tried to cover a lot of ground in this presentation, the GSE required for your mission will vary depending on your application
• My intent is to start the thinking process of how to design, develop, and execute GSE elements of your program so that you have a successful mission

Tele-Intervention Resources, Pam Dawson M.Ed., Rachel Glade Ph.D.

Journal of Early Hearing Detection and Intervention

The restrictions of the COVID-19 pandemic forced many early intervention (EI) providers and families to adopt an emergency virtual service delivery model. The exigent nature of the pandemic necessitated the rapid transition to virtual early intervention, often without the benefit of training and guidance for both providers and caregivers regarding the use of virtual platforms, objectives, procedures, and the overall dynamics of the virtual session. As restrictions begin to ease and in-person home visits once again become possible, many providers and caregivers may be wondering how tele-intervention (TI) services might fit in ongoing early intervention for children who are deaf …

Achieving Successful Outcomes In A Teleintervention Program, K. Todd Houston, Lauri Nelson, Brianna Job

Journal of Early Hearing Detection and Intervention

For well over a decade, family-centered early intervention services have been delivered through models of teleintervention (TI) to children who are Deaf and Hard of Hearing (DHH) and their families. Ongoing outcome data continue to demonstrate the viability, effectiveness, and positive impacts these services provide to both the service providers and the families served. However, to establish a successful TI program, careful planning is required, and barriers and potential roadblocks must be reduced or eliminated. When these challenges are adequately addressed, TI programs are more likely to achieve its primary goal of delivering appropriate family-centered early intervention.

Training The Next Generation Of Practitioners In Early Intervention And Telepractice: Three University Models, K. Todd Houston, Lauri Nelson, Kristina Blaiser

Journal of Early Hearing Detection and Intervention

The COVID-19 pandemic continues to shape the provision of family-centered early intervention services for children who are Deaf or Hard-of-Hearing and their families. In programs, schools, and centers, direct in-person contact with families have been significantly curtailed as a means to limit the exposure to and spead of the virus. Emergency remote learning has lead to an increase in telepractice, also referred to as teleintervention, as the designated model of service provision. Most early interventionists, speech-language pathologists, and teachers of the Deaf were not sufficiently trained to suddenly implement emergency remote teaching or telepractice services, but service providers had no …

Frequently Asked Questions About Receiving Tele-Intervention Services, Ronda Rufsvold, Betsy Moog Brooks, Amanda M. Rudge, National Center For Hearing Assessment And Management (Ncham) Tele-Intervention Learning Community

Journal of Early Hearing Detection and Intervention

The purpose of this article is to provide resources related to parent perceptions and needs in receiving tele-intervention (TI) services.

Telepractice-Based Assessment Of Children Who Are Deaf/Hard-Of-Hearing: Focus On Family-Centered Practice, Kristina M. Blaiser, Lauri Nelson, K. Todd Houston

Journal of Early Hearing Detection and Intervention

Ongoing assessment and progress monitoring is considered best practice to serve children who are Deaf/Hard-of-Hearing (DHH) yet logistics related to provider shortages, distances between families, and illness make regular assessment difficult if not impossible. In the last ten years, telepractice has become a more commonly used service delivery model for serving children who are DHH and their families, however, many providers lack the training needed to adequately assess this population (Behl & Kahn, 2015). With explicit planning of the assessments and tools needed on both sides of the camera, providers can create a shared framework to collect the information needed …

A Review Of Current Pediatric Tele-Audiology Ehealth Platforms, Alex Meibos

Journal of Early Hearing Detection and Intervention

Purpose: The purpose of this study was to identify current pediatric tele-audiology hearing technology platforms for young children with hearing loss and their families.

Method: An exploratory, descriptive design was used to evaluate features of available pediatric tele-audiology platforms for parents and audiologists to implement for young children. The study explored internet resources including hearing industry websites, for information related to specific eHealth platform features designed to support pediatric hearing devices currently available to audiologists and families.

Results: Of the websites reviewed, only four major technology companies were found to have pediatric tele-audiology ready platforms designed to support young children …

Provider Perspectives In Serving Children Who Are Deaf Or Hard Of Hearing And Their Families Using Tele-Intervention, Lauri H. Nelson, Amanda M. Rudge, Pamela Dawson, Demi Culianos, Arlene Stredler-Brown

Journal of Early Hearing Detection and Intervention

Purpose: In the second of a two-part survey series, this cross-sectional survey study explored professionals’ perceptions of tele-intervention (TI) services for young children who are deaf or hard of hearing. Using Likert rating scales and open-ended questions, the survey queried professional’s confidence in providing TI services, including their views and recommendations. Data were collected March-May 2020, not realizing the survey release would coincide with the Covid-19 pandemic and the influx of unexpected virtual services. For this reason, data were stratified between those who had been providing TI services for more than versus less than

three months. Responses for in-person providers …

Parents’ Perspectives About Tele-Intervention Services For Their Children Who Are Deaf Or Hard Of Hearing, Lauri H. Nelson, Amanda M. Rudge, Pamela Dawson, Demi Culianos, Cheryl Broekelmann, Arlene Stredler-Brown

Journal of Early Hearing Detection and Intervention

Purpose: In the first of a two-part survey series, this cross-sectional survey study explored parent perceptions of tele-intervention (TI) services for their young children who are deaf or hard of hearing. Using Likert rating scales, the survey queried parent confidence in understanding their child’s language development, perceptions of the coaching and support they received, the parent-professional partnership, and overall views and recommendations. Data were collected March-May 2020, not realizing the survey release would coincide with the Covid-19 pandemic and the influx of unexpected virtual services. For this reason, data were stratified between those who had received TI services for more …

Working With Families Of Young Children Who Are Deaf Or Hard Of Hearing Through Tele-Intervention, Amanda M. Rudge Phd, Betsy Moog Brooks Edd, Arlene Stredler-Brown Phd

Journal of Early Hearing Detection and Intervention

Tele-intervention services have been utilized for many years to serve families of young children, in addition to or in lieu of traditional in-person intervention services. Recently, the COVID-19 pandemic cultivated urgent dependence on access to effective services via a distance connection. As such, the need for information, guidance, and resources related to tele-intervention as a primary service model has increased. This article serves as the introduction to a monographic series aiming to describe practices, circumstances, and perceptions surrounding tele-intervention services for families of children aged birth to five who are deaf or hard of hearing. Topics include: (a) a brief …

The Journal Of Early Hearing Detection And Intervention: Volume 7, Issue 2 Welcome

Journal of Early Hearing Detection and Intervention

No abstract provided.

The Journal Of Early Hearing Detection And Intervention: Volume 7 Issue 2, Pages 1-73

Journal of Early Hearing Detection and Intervention

No abstract provided.

Collective And Creative Learning To Enhance Interlibrary Loan, Lars Leon, Carol A. Kochan

Library Faculty & Staff Publications

The resource sharing community has a proud history of sharing knowledge through conferences, workshops, and online resources in support of training and development. People have enjoyed these opportunities and received various levels of benefit depending on access and whether instruction aligns with the methods they learn best. However, it is clear there aren't enough collective actions to meet the needs. We hosted a series of focus groups on training and development to find out from participants what has worked for them, what is still needed, how they learn best, and the types of training and information that will help them …

Heavy Metal Levels And Sources In Suspended Particulate Matters Of The Glacier Watersheds In Northeast Tibetan Plateau, Rui Wu, Zhiwen Dong, Xiping Cheng, Janice Brahney, Xiaoyu Jiao, Lihua Wu

Watershed Sciences Faculty Publications

This study collected summer meltwater runoff samples from several glacier watersheds of the northeast Tibetan Plateau during June-July 2017, and measured the concentrations of 17 trace elements (Li, Be, Sc, V, Cr, Co, Ni, Cu, Zn, Ga, Rb, Mo, Cd, In, Sb, Cs, Ba) in meltwater suspended particulate matter (SPM), in order to reveal the elemental concentration, spatial distribution, and water quality in remote glacier watershed under regional anthropogenic activities. Results showed that, the concentration of heavy metal elements was relatively high in Yuzhufeng Glacier basin, ranging from 0.57 μg/L (In) to 1,551.6 μg/L (Ba), whereas in Qiyi Glacier basin …

The Benefits Of Growth-Promoting Implants For Beef Cattle, Caleb C. Reichhardt, Reganne K. Briggs, Laura Motsinger, Kara Thornton-Kurth, Matthew D. Garcia

All Current Publications

Growth-promoting implants have been used in the cattle industry for decades. Their benefits allow cattle producers to become more sustainable by decreasing the amount of resources used. Resources such as water and land are decreased when using growth-promoting implants in beef cattle.

Tremblings, August 2022, Western Aspen Alliance

Tremblings

Aspen seedlings for boreal mine reclamation

Bradley Pinno

Trembling aspen is a major component of the forests in Alberta. Aspen is an early successional species which occurs in both pure and mixed stands. It also provides the timber for pulp mills and oriented strand board mills with a harvest rate of nearly 12M m³ (5.08 BBF) of aspen timber annually in Alberta. Aspen normally regenerates vigorously after disturbance from root suckers in the range of 10,000–100,000 stems per hectare. However, after industrial disturbances such as mining or the creation of well sites where the soil has been removed, root …

Storing Water For The Environment: Operating Reservoirs To Improve California’S Freshwater Ecosystems, Sarah Null, Jeffrey Mount, Brian Gray, Kristen Dybala, Gokce Sencan, Anna Sturrock, Barton Thompson, Harrison Zeff

Watershed Sciences Faculty Publications

California’s freshwater ecosystems—its lakes, rivers, floodplains, meadows, natural and managed wetlands, and estuaries—are a vital part of the state’s natural infrastructure. These ecosystems provide numerous benefits, including water supply, hydropower, flood control, fisheries, recreation, and cultural and aesthetic value. They are also home to the nation’s most diverse array of plant and animal communities, with numerous freshwater species found only in California (Jensen et al. 1993; Grantham et al. 2017).

The Utah Statesman, August 1, 2022, Utah State University

The Utah Statesman

Weekly student newspaper of Utah State University in Logan.

Spacecraft Formation Flying Control Switching Surface Based On Relative Orbital Elements, Tyson K. Smith, John Akagi, Greg Droge

Space Dynamics Laboratory Publications

The development of a switching surface constraint based on the D’Amico relative orbital elements (ROE) is presented in this paper. Relative orbital elements give a more intuitive understanding of how the relative motion of a cluster of satellites changes with time and allows the control algorithm to take advantage of the natural dynamic motion. This work models each vehicle using a model predictive control (MPC) approach, based on the Hill-Clohessey-Whiltshire (HCW) equations, to plan maneuvers which are simulated using a high-fidelity motion model. An ROE based convex polytope switching surface is added to the MPC formulation to force the states …

Storing Water For The Environment: Technical Appendix B: An Experimental Reservoir Model For Storage And Allocation Of An Ecosystem Water Budget, Sarah Null, Harrison Zeff, Anna Sturrock

Watershed Sciences Faculty Publications

Dams alter flow regimes, fragment rivers, and harm freshwater ecosystems (Munsch et al. 2022; Barbarossa et al. 2020). Yet, freshwater ecosystems are increasingly dependent on surface reservoirs for environmental flows and suitable water temperatures as rivers have become irrevocably altered by water development, consumptive water uses, land use change, and climate change (Grantham et al. 2020; Yarnell et al. 2020). This creates a paradox where dams have contributed to freshwater ecosystem decline, but are now instrumental for managing environmental water and enhancing downstream ecosystems.

Myside Bias Shifting In The Written Arguments Of First Year Composition Students, Lezlie Christensen-Branum

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This dissertation reports on research conducted to better understand how college student writers learned to work against their own biases as they researched and wrote arguments. I conducted a review of former studies to design a curriculum that would help students avoid bias and increase their ability to write arguments tailored to specific readers in ways that accomplish their goals. This review also informed the kinds of data to be collected and analyzed in order to accomplish the research goal, which was to understand whether and how each of seven students enrolled in a composition course reduced their biases. I …

Executive Orders On A Political Timeline: Examination Of Executive Orders In The Supreme Court And Stephen Skowronek's Theory Of Presidential Leadership, Alisha Rachele Urrutia

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The research performed here applies a theoretical model of the presidency by Stephen Skowronek that spans all of American history to the number of executive orders issued per president and the number of these orders argued before the Supreme Court per president. I hypothesized that presidents who have the fewest political resources available to them (disjunctive presidents) would issue the most executive orders, and presidents who transform the face of American government and politics (reconstructionists) would face the most Supreme Court cases dealing with executive orders. I created two datasets for this research and used descriptive statistics to evaluate these …

Recognizing And Reducing Ambiguity In Mathematics Curriculum And Relations Of Θ-Functions In Genus One And Two: A Geometric Perspective, Shantel Spatig

All Graduate Plan B and other Reports, Spring 1920 to Spring 2023

Anxiety and mathematics come hand in hand for many individuals. This is due, in
part, to the fact that the only experience they have with mathematics is what some
mathematics educators refer to as "schoolmath," which uses a somewhat different
language than real mathematics. The language of schoolmath can cause individu-
als to have confusion and develop misconceptions related to several mathematical
concepts. One such concept is a fraction. In chapter one of this report, one possible
reason for this is discussed and a possible solution is purposed.
In chapter three of this report, genus-two curves admitting an elliptic involution …

Reversing The Gaze: Using Indigenous And Western Worldviews To Compare Coverage Of Climate Change And Indigenous Peoples In The News Media, Gina Mccrackin

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The news media acts as an important conduit for shaping societal views of the socio-politics of climate change. While climate change will indeed affect everyone, it will not affect everyone equally. Indigenous peoples are among the populations whose well-being is threatened the most by climate change. International scholarship finds it is not uncommon for Indigenous cultures, communities, and perspectives to be underrepresented and misrepresented in Western climate change media. Research also indicates that fair Indigenous representation occurs when Indigenous peoples are the authors of news articles themselves. We evaluated the differences in discussions of climate change and environmental issues …

Quantum Computing Simulation Of The Hydrogen Molecule System With Rigorous Quantum Circuit Derivations, Yili Zhang

All Graduate Plan B and other Reports, Spring 1920 to Spring 2023

Quantum computing has been an emerging technology in the past few decades. It utilizes the power of programmable quantum devices to perform computation, which can solve complex problems in a feasible time that is impossible with classical computers. Simulating quantum chemical systems using quantum computers is one of the most active research fields in quantum computing. However, due to the novelty of the technology and concept, most materials in the literature are not accessible for newbies in the field and sometimes can cause ambiguity for practitioners due to missing details.

This report provides a rigorous derivation of simulating quantum chemistry …