Digital Commons Network^™

Secure Cloud Architecture For Protecting The Software Of Space Vehicles, Keshav Raviprakash, Cameron Bonesteel, Sydney Whilden, Deepak R. Mishra

Small Satellite Conference

As the number of space vehicles launched into outer space increases over time, the need to determine and counter possible cyber attacks from malicious agents will drastically increase. A potential solution to this problem is to create a cloud architecture that a spacecraft can use for autonomous detection or recovery from cyber attacks when out range of a ground station. For this work, the development of a new cloud architecture for space vehicles is proposed which allows users to control access to information or applications within the system while using the self-healing capabilities of containers. The cloud architecture will first …

Control Of Small Spacecraft By Optimal Output Regulation: A Reinforcement Learning Approach, Joao Leonardo Silva Cotta, Omar Qasem, Paula Do Vale Pereira, Hector Gutierrez

Small Satellite Conference

The growing number of noncooperative flying objects has prompted interest in sample-return and space debris removal missions. Current solutions are both costly and largely dependent on specific object identification and capture methods. In this paper, a low-cost modular approach for control of a swarm flight of small satellites in rendezvous and capture missions is proposed by solving the optimal output regulation problem. By integrating the theories of tracking control, adaptive optimal control, and output regulation, the optimal control policy is designed as a feedback-feedforward controller to guarantee the asymptotic tracking of a class of reference input generated by the leader. …

Data Sharing In Satellite Systems: Review Of The Past And Opportunities In The Age Of Large Leo Constellations, Anargyros Kriezis, Nicolas Lee, Sigrid Elschot, Kaitlyn Fleming, Zayn Patel, Neel Dhulipala, Whitney Lohmeyer

Small Satellite Conference

Since 1957, more than 14,000 satellites have been launched into space; 2022 marks a record year with the launch of 2,163 satellites [1]. The increased number of satellites in combination with technological advancements in satellite communications has enabled operators to collect vast amounts of science data and satellite telemetry. These large data sets can be utilized to ensure coexistence between the ever-increasing number of satellite systems, potentially reducing both the risk of harmful interference and in-orbit collisions. Additionally, they can act as decentralized information sources, improving our understanding of the space environment and increasing the reliability of satellites. Modern data …

Developing A Comprehensive Power Simulation Model For The Memesat-1 Cubesat Using Orbital Dynamics, Matthew Knauss, Ali Batu Ozdener, Vedika Ghildyal, Sydney Whilden, Deepak R. Mishra

Small Satellite Conference

The University of Georgia’s Small Satellite Research Lab’s Mission for Education and Multimedia Engagement Satellite (MEMESat-1) requires the use of variables such as power generation, power draw, orbital path, packet size, and data processing times. As power generation and charge varies, MEMESat-1 will automatically transition through three operational modes to prevent battery depletion and halt system processes in case of anomalies.

Taking these variables and operational modes into account, the MEMESat-1 Mission Operations (MOPS) team will use FreeFlyer software to analyze power generation and draw during MEMESat-1’s orbital cycle. The power limitations of MEMESat-1 are budgeted based on battery and …

The Performance Test Of Pnccd With Fpga-Based Operating System For A Cubesat Mission, Hsien-Chieh Shen, Takanori Sakamoto, Naoki Ogino, Makoto Arimoto, Daisuke Yonetoku, Tatsuya Sawano, Junko S. Hiraga, Yoichi Yatsu

Small Satellite Conference

On 17 August 2017, the LIGO/Virgo collaboration detected a signal of gravitational waves, named GW170817, associated with the merger of two neutron stars. This event was the first detection of the electromagnetic counterpart of gravitational wave events. In general, the error image region of the gravitational wave detectors ranges from a few square degrees to several hundred square degrees. To search for the origin of the gravitational waves or the energetic explosions such as the gamma-ray burst, X-ray observation covering a wide field of view with a good sensitivity is essential to achieve the goal. One of the good candidate …

Scintillation And Ionosphere Extended (Scion-X): A 12u Cubesat For Ionospheric And Atmospheric Science, Yu-Shun Wang, Binson S. Lee, Ruo-Yu Wang, Glenn Franco Gacal, Hsin-I Tu, Kai-Jye Hou, Wei-Yi Lin, Loren C. Chang

Small Satellite Conference

SCION-X (SCintillation and IONosphere eXtended) is a 12U CubeSat that is being designed and developed by Upper Air Dynamics Laboratory, National Central University (NCU). SCION-X is the second funded CubeSat project being developed by NCU and is the largest self-developed spacecraft to date.

This mission will help to further understand the variation of ionospheric irregularities, remote sensing methods for PM2.5 pollution distribution, and thermospheric photochemistry while serving as a relay station for amateur radio. Furthermore, it will help increase the communication and cooperation between universities in developing spaceflight capacity.

Extreme Ultraviolet Reflective Grating Characterization And Simulationsfor The Aspera Smallsat Mission, Jessica S. Li, Aafaque R. Khan, Jason Corliss, Haeun Chung, Simran Agarwal, Erika Hamden, Carlos J. Vargas, Bill Verts, Hop Bailey, Trenton Brendel, Peter Behroozi, Harrison Bradley, Jacob Chambers, Tom Connors, Fernando Coronado, Ewan Douglas, Elijah Garcia, Giulia Ghidoli, Alfred Goodwin, Dave Hamara, Walter Harris, Karl Harshman, Miriam Keppler, Daewook Kim, Jasmine Martinez Castillo, Tom Mcmahon, Nicole Melso, Jamison Noenickx, Stacy Oliver, Ryan Pecha, Bashar Rizk, Cork Suave

Small Satellite Conference

The Aspera SmallSat mission is designed to detect and map the warm-hot gaseous component of the halos of nearby galaxies through long-slit spectroscopy of the ionized O VI emission line (103.2 nm) for the first time. The Aspera Rowland circle type spectrograph uses a toroidal grating coated with a multilayer film consisting of aluminum, lithium fluoride, and magnesium fluoride capping to optimize reflectivity in the extreme ultraviolet (EUV) waveband from 103 to 104nm. We discuss the grating characterization test setup at the University of Arizona (UA), which will validate the multilayer coating and grating efficiency in a UV vacuum chamber. …

Development And Characterization Of A Vectored Electrospray Thruster, Ivan Savytskyy, Manish Jugroot

Small Satellite Conference

Next-generation nanosatellite missions will require precise linear impulse and torque bits for optimized attitude and trajectory control. To address this requirement, a Vectored Electrospray Thruster (VET) that provides high-resolution multi-axis attitude actuation via thrust vector control was investigated at the Royal Military College of Canada Advanced Propulsion and Plasma Exploration Laboratory (RAPPEL). The VET employs arrays of linear porous wedge emitters and uses pulse-width modulation to produce stepped emission differentials across the nanosatellite propulsion plane. A two-emitter prototype offering single-axis attitude actuation was developed to validate the thruster concept, and a custom power processing unit and complementary diagnostics suite were …

Records Management Practices In Government Ministries In Akwa Ibom State, Nigeria, Udoh Isaac Unwana, Angela Okeoghene Bello, Osaze Patrick Ijiekhuamhen

Library Philosophy and Practice (e-journal)

This study was on a survey of records management practices in state ministries in Akwa Ibom State, Nigeria. The survey design was used for the study, with the questionnaire as the instrument for data collection. The population of the study was one hundred and six (106) records management staff of the ministries studied. Two research questions were posed for investigation. The study revealed that various records are created by the ministries which include records on general administration, accounts and finance, sports, health, laws, education and environments. The study also revealed that the ministries used such facilities as wooden shelves, metallic …

Information And Communication Technology (Ict) Competencies And Job Performance Of Librarians In Some Selected University Libraries In North Central Of Nigeria, Asibi Joy Idachaba, Yemisi B. Ojokuku, Udoh Isaac Unwana

Library Philosophy and Practice (e-journal)

The study investigated the era of ICT competencies and job performance of librarians in some selected university libraries in North Central of Nigeria. A descriptive survey research design was adopted for the study. The population of the study consists of 171 professional and para professional librarians from Francis Sarwuan Tarka University library and Benue State University library. A total of 171 questionnaires were distributed only 133 were retrieved. Data collected were analyzed using descriptive statistics mean and percentage mean score of 2.5 and above and percentage score of 50% were considered. The study revealed that ICT competencies possessed by Librarians …

Design Of Deployable Optical Space Arrays Based On A Thickened Origami Flasher Pattern, Jared Hunter, Clark Roubicek, Mark Stephen, Spencer Magleby, Larry Howell

Small Satellite Conference

Performance of space-based optics could be greatly enhanced by using deployable origami-based arrays, which can offer a large aperture size relative to their stowed volume when compared to traditional technology, thus improving imaging quality.

In this work, we select, develop, and adapt the origami flasher pattern to serve as the foundation for a deployable array that shows promise for meeting stringent optical requirements. We apply a novel thickness accommodation technique, improve stability by adjusting geometric characteristics of the pattern, and create an array of frames for housing optical elements in a co-planar configuration. By following the guidelines in this work, …

Early Wildfire Detection With Cubesat Images Using Single Image Super-Resolution, Jimin Choi, Jaemyung Ahn

Small Satellite Conference

Early detection of wildfires is crucial for preventing the spread of fires and protecting lives and properties. In recent years, satellite-based wildfire detection is becoming popular because of the coverage area and cost limitations of traditional detection methods such as ground-based observation and aerial surveillance. In particular, using CubeSat has the advantage of real-time monitoring and early detection of wildfires in a large area at a low cost. However, the CubeSats have limited image quality due to physical limitations such as size, weight, and power, which reduce detection performance. Therefore, this paper proposes a novel approach for early wildfire detection …

A Summary Of Neural Radiance Fields For Shadow Removal And Relighting Of Satellite Imagery, Caleb Adams, Ignacio Lopez-Francos, Ellemieke Van Kints, Aiden Hammond

Small Satellite Conference

Multi-view stereo photogrammetric techniques are conventionally utilized to generate Global Digital Elevation Models (GDEM) of planetary and lunar surfaces. However, these methods, relying on conventional feature detectors, are often subject to inaccuracies caused by changes in lighting conditions, including diffuse reflection and harsh shading. This has limited the ability of these methods to accurately reconstruct shadowed regions in orbital imagery, such as highly shaded urban areas and the permanently shadowed regions (PSRs) located on the lunar surface, which are critical targets for NASA’s Artemis program. Neural Radiance Fields (NeRFs) offer a novel solution to these limitations by breaking away from …

Automating Spacecraft Analysis: The Era Of Ontological Modeling & Simulation, Michael Halvorson, Noah Moyers, Carlos Domani, Johny Corona, Matthew Gillis, Sean Price, Aiden Raley, Andrew Crudup, Andrew Walter, Coleman Deschepper, Grant Gravitt, Jacob Wilkins, Nik Dreicer, Seth Porter, Tyler Babinec, Tyler Johnson, Nicolas Tsolas, L. Dale Thomas

Small Satellite Conference

Verification by analysis is a predicted compliance of a design to imposed requirements. The levels of performance specified by performance requirements can be related to Technical Performance Measures (TPM) in a Model-Based Systems Engineering (MBSE) environment, but engineers performing verification by analysis are not commonly versed in professional Systems Engineering (SE) techniques or modeling languages such as SysML. As the formal application of Systems Engineering (SE) results in a diminution of time, effort, and money for large-scale projects, enabling technical engineers performing verification by analysis to contribute to MBSE improvements in the course of their daily work is financially incentivized. …

The Kihm-9: A Novel Self-Deploying Picosat Antenna Design For Reflectarray Antennas, Nathan Coleman, Mitchel Skinner, Collin Ynchausti, Spencer Magleby, Larry Howell, Akash Biswas

Small Satellite Conference

Reflectarray antennas are popular on satellites for their ability to achieve similar performance to parabolic antennas in a more compact volume. This project shows how integrating novel technologies achieves the benefits of larger antennas while maintaining the advantages of small satellites. The objective of this research is to create a reflectarray antenna for a holographic metasurface that utilizes the volume surrounding a CubeSat when stowed, incorporates a novel pin-less hinge, includes a self-deploying and stabilizing joint, and is manufactured out of space-grade materials. By using hinges embedded with membranes and magnets, issues with lubrication and outgassing may be avoided, and …

Burnout And Job Satisfaction Of Behavior Technicians Working In Public Schools: A Quantitative Correlational Study, Sara B. Dougherty

Doctor of Education Program Dissertations

The purpose of this quantitative correlational study was to determine if the characteristics of burnout predict job satisfaction of behavior technicians in public schools. There was a need to examine if the high levels of burnout and low job satisfaction experienced by teachers and paraprofessionals that have resulted in high rates of attrition also impact behavior technicians in public school settings (Madigan & Kim, 2021; NCES, 2022; Sims, 2020; Skaalvik & Skaalvik, 2020). An online survey was created using REDCap consisting of the Maslach Burnout Inventory-Educators Survey (Maslach et al., 1996), the Minnesota Satisfaction Questionnaire short form (Weiss et al., …

Minutes, August 2023, University Of Dayton. College Of Arts And Sciences

Documents of the College of Arts and Sciences Academic Affairs Committee

Minutes from organizational meeting for Academic Affairs Committee

Focus On Party Decision-Making, John M. Lande

Faculty Blogs

A major motivation in the modern dispute resolution movement has been to increase and improve parties’ decision-making in their legal disputes. Parties can participate more effectively in negotiation and mediation if they engage in decision-making early in disputes. This suggests the importance of good preparation before negotiation and mediation sessions. When parties are well-prepared in advance, they are as knowledgeable, confident, and assertive as possible in making decisions in their cases

Online Midsummer Seminar (Oms #2) "Fantasy Goes To Hell", The Mythopoeic Society

Mythcon Programs

FANTASY GOES TO HELL was originally intended to be our 2023 Midwinter Seminar, but our plans for an in-person Mythcon in 2023 fell through, and the topic proved to be so popular it strained the resources we had available for a seminar. Hence we proposed that we expand the seminar into what we have previously called a “Halfling Mythcon”—a virtual Mythcon taking the place of an in-person one.

FANTASY GOES TO HELL will run in parallel with general virtual conference tracks devoted to other topics in Mythopoeic Fantasy, such as presentations by award nominees and traditional after-hours programming. The 2023 …

Orpheus And Eurydice, Emma Wilson-Kanamori

The Mythic Circle

No abstract provided.

Mara, Christian Dickinson

The Mythic Circle

No abstract provided.

Gene Expression Genetics Of The Striatum Of Diversity Outbred Mice., Vivek M. Philip, Hao He, Michael C Saul, Price E Dickson, Jason A. Bubier, Elissa J Chesler

Faculty Research 2023

Brain transcriptional variation is a heritable trait that mediates complex behaviors, including addiction. Expression quantitative trait locus (eQTL) mapping reveals genomic regions harboring genetic variants that influence transcript abundance. In this study, we profiled transcript abundance in the striatum of 386 Diversity Outbred (J:DO) mice of both sexes using RNA-Seq. All mice were characterized using a behavioral battery of widely-used exploratory and risk-taking assays prior to transcriptional profiling. We performed eQTL mapping, incorporated the results into a browser-based eQTL viewer, and deposited co-expression network members in GeneWeaver. The eQTL viewer allows researchers to query specific genes to obtain allelic effect …

Commencement Convocation Program, Usf, August 8, 2023, University Of South Florida

USF Graduation and Convocation Programs

King O'Neal Scholars - Emma Grace Atherton, Alisa Bakieva, Ginelle Renae Lauryn Brown, Tatyana Soribel Butler, Carter E. Casko, Carli Lilibeth Cohoon, Sarah Lou Shalom Dasent Shuler, Carlos Manuel Figueroa Palomino, Lanette Gonzalez-Lewis, Grace Angelique Heeke, Daniel Thomas Kortenhaus, Emily Margaret Logan, Makayla Long, Abigail Clariece McCurter, Elijah Callaway Mceuen, Sofia Elizabeth Mejia-Naccarato, Rachel Yvonne Stanton, Edward B. Williams, and Parisa Yazdankhah Kenary; Global Citizens Award - Sarah Bagnasco, Sydney Black, Carly Burton, Gladys D. Cantu, Sara Chaj, Lauren Flannery, Emily Hernandez, Anagha Hesaraghatta, Faith Pinamang, Katie Sarnelli, Natalie Spanhake, Kenya A. Sanchez Torres, and Neha Vemuri

A Guide For The Treatment Of Tendonitis, Dominic Montalto

Department of Occupational Therapy Entry-Level Capstone Projects

No abstract provided.

Exploring The Role Of Mentorship In Occupational Therapy Home Health, Lauren E. Coutinho

Department of Occupational Therapy Entry-Level Capstone Projects

This capstone project explored the role of mentorship in occupational therapy (OT) home health through the focus areas of administration and program development. The capstone site was Embrace Rehab Healthcare, a private outpatient rehabilitation home health company that recently launched services. The population served was adults and older adults and services offered were occupational, physical, and speech therapies. While the main focus area was administration and assisting with various administrative tasks that beginning a new healthcare company entails, my project for this capstone experience was developing a mentorship toolkit for clinicians who are new to working in this setting, as …

Exploring The Needs Of Military Children In Public Schools: What School Psychologists Need To Know, Hannah A. Delmonte

Educational Specialist, 2020-current

Although research has been published documenting the increased risk for negative social, emotional, behavioral, and academic outcomes of military-connected students, no research prior to this study has given voice to these students and explored their experiences and needs. Five military-connected high school students participated in a focus group exploring what their lived experiences are in the context of living in a military-connected home and what they wish their schools knew to better support them. A thematic analysis was used to analyze the qualitative data and six themes emerged from the discussion: the emotional burden these students carry, distance they feel …

The Impact Of Repeated Reading Intervention On Oral Reading Fluency For Students With Autism Spectrum Disorder (Asd) In Saudi Arabia, Ahmed Al Naji

Electronic Theses and Dissertations

The prevalence rate of learners with autism spectrum disorder (ASD) has risen concurrently with their inclusion into public schools in Saudi Arabia. Being in schools, they face academic challenges, particularly in reading. This increased rate evokes the importance of implementing valuable strategies to keep up the academic skills of those students. These students require Evidence-Based Practices (EBPs), which have been demonstrated crucial for their reading development. Nevertheless, limited research has been done on examining the efficacy of EBPs used to enhance the reading skills of learners with ASD, especially their Oral Reading Fluency (ORF). This study used an effective approach …

The Impact Of The Social Story Intervention On Children With Autism Spectrum Disorder (Asd) In Saudi Arabia, Marwan Alkhudhayri

Electronic Theses and Dissertations

Autism Spectrum Disorder (ASD) is on the rise in Saudi Arabia, and the field of Special Education is currently working to expand awareness about ASD as well as evidence-based intervention availability in the country. The Social Stories Intervention has been shown to have positive results in work with children with ASD in other countries, however its effectiveness in Saudi Arabia had not thoroughly been examined. The Social Stories Intervention provides an important tool for practitioners to use with children with ASD in order to help improve their social skills development. The current study utilizes a single-subject design to assess the …

Examining The Usefulness Of Interprofessional Education (Ipe) For Legal, Social Work, & School Psychology Student Training To Support Justice Involved Youth, Mary Comis

Electronic Theses and Dissertations

The school-to-prison pipeline is defined as a set of policies that contribute to the removal of students from the school environment and into the justice system (Justice Policy Institute, 2011). These students have unique and complex needs that include educational needs, legal needs, and community needs; however, these students often lack the support necessary to assist them when navigating the complexities of the educational and legal system. As a result, the complexity of the challenges these students face can be provided through a holistic legal representation team, where a school psychologist, social worker, and lawyer, can coordinate their efforts to …

Proposing A Measure Of Ethicality For Humans And Ai, Alejandro Jorge Napolitano Jawerbaum

Electronic Theses and Dissertations

Smarter people or intelligent machines are able to make more accurate inferences about their environment and other agents more efficiently than less intelligent agents. Formally: ‘Intelligence measures an agent’s ability to achieve goals in a wide range of environments.’ (Legg, 2008)

In this dissertation we extend this definition to include ethical behaviour and we will offer a mathematical formalism and a way to estimate how ethical an action is or will be, both for a human and for a computer, by calculating the expected values of random variables. Formally, we propose the following measure of ethicality, which is computable, or …