Digital Commons Network^™

An Ai-Based Goal-Oriented Agent For Advanced On-Board Automation, Christian Cardenio, Lorenzo Feruglio, Alessandro Benetton, Mattia Varile, Temenuzhka Valentinova Avramova

Small Satellite Conference

In the context of fierce competition arising in the space economy, the number of satellites and constellations that will be placed in orbit is set to increase considerably in the upcoming years. In such a dynamic environment, raising the autonomy level of the next space missions is key to maintaining a competitive edge in terms of the scientific, technological, and commercial outcome.

We propose the adoption of an AI-based autonomous agent aiming to fully enable spacecraft’s goal-oriented autonomy. The implemented cognitive architecture collects input starting from the sensing of the surrounding operating environment and defines a low-level schedule of tasks …

A Low Power And High Performance Artificial Intelligence Approach To Increase Guidance Navigation And Control Robustness, Pablo Ghiglino, Mandar Harshe

Small Satellite Conference

New generations of spacecrafts are required to perform tasks with an increased level of autonomy. Space exploration, rendezvous services, space robotics, etc. are all growing fields in Space that require more sensors and more computational power to perform these missions. Furthermore, new sensors in the market produce better quality data at higher rates while new processors can increase substantially the computational power. Therefore, near-future spacecrafts will be equipped with large number of sensors that will produce data at rates that has not been seen before in space, while at the same time, data processing power will be significantly increased. In …

Constellation Modelling, Performance Prediction And Operations Management For The Spire Constellation, Jeroen Cappaert, Frantisek Foston, Pablo Sierra Heras, Barry King, Nick Pascucci, Jordan Reilly, Conor Brown, Joey Pitzo, Marcus Tallhamm

Small Satellite Conference

The operational complexity of managing the Spire constellation continually increases with the routine introduction of additional satellites and new capabilities. The heterogeneous nature of the satellites, payloads, and ground station configurations compounds the difficulty of strategic planning and operational scheduling. In order to efficiently operate this diverse network of assets, Spire developed a suite of bespoke constellation modeling and management tools that are designed to support existing demand and to scale for future needs. The modeling tools enable Spire to accurately simulate and optimize the performance of various constellation configurations prior to deployment. The operational tools required to harness the …

Sagittarius A* Small Satellite Mission: Capabilities And Commissioning Preview, Caleb Royer, Mike Renner, Owen Brown, Robert Polutchko, Paul Bains, Sam Gagnard, Alex Herz, Mark Mason, Nick Stanley, John Eterno

Small Satellite Conference

SSCI is leading a Defense Advanced Research Projects Agency (DARPA)-funded team launching a mission in June 2021, dubbed Sagittarius A*, to demonstrate key hardware and software technologies for on-orbit autonomy, to provide a software testbed for on-orbit developmental test & autonomous mission operations, and to reduce risk for future constellation-level mission autonomy and operations. In this paper, we present the system CONOPs and capabilities, system architectures, flight and ground software development status, and initial commissioning status. The system will fly on Loft Orbital’s YAM-3 shared LEO satellite mission, and includes SSCI’s onboard autonomy software suite running on an Innoflight CFC-400 …

System And Method For Providing Instant Loading For Requested Payment To White Label Prepaid Card, Oleg Chanchikov

Defensive Publications Series

The present disclosure provides a system and a method to provide instant loading/crediting for requested payment to white label prepaid card, upon initiating transaction from customer. The proposed system provides loan to customer using a pseudo credit card. The proposed system allows Micro-Finance Centre (MFC) to receive loan request along with prepaid card application from customer. The proposed system allows customer to do transaction with the prepaid card and provides instant loan for the requested amount from account of the MFC. The instant loading/crediting of requested amount may be accessed through website or mobile banking application provided by the MFC. …

System And Method For Generating Fund Sufficiency Score For A Cardholder, Guillermo Sepulveda Rodriguez

Defensive Publications Series

The present disclosure provides a system and a method for generating fund sufficiency score for a cardholder. The proposed system generates a fund sufficiency score when there is not enough fund available in account of the cardholder to complete a transaction. The fund sufficiency score is communicated to an issuer through ISO message or API interface. Further the cardholder also receives a message stating confirmation of authorization for the transaction. The proposed system allows the cardholder to pay his bill even when the cardholder account has less funds. However, if the fund sufficiency score for the cardholder is less then …

Volume 32, Numbers 1, 2, 3, 4, Fall 1994/Winter 1995/Spring 1995/Summer 1995 Speaker And Gavel

Speaker & Gavel

Complete digitized volume (volume 32, numbers 1-4, Fall 1994/Winter 1995/Spring 1995/Summer 1995) of Speaker & Gavel.

University Of Dayton Russian Instructor Translates Letters Written By Her Father, A Red Army Soldier, From The Front During Wwii, Dave Larsen

College of Arts and Sciences Newsroom

Translating Russian texts to English is nothing new for Tatiana Liaugminas, who has taught Russian at the University of Dayton for more than 40 years. But her most recent project was personal — translating recently discovered letters written by her late father, a Red Army soldier, from the front during World War II.

Structural Characteristics And Thermophysical Properties Of Molten Salts From Ab Initio Molecular Dynamics Simulations, Austin David Clark

Theses and Dissertations

This work 1) draws insights on molten salt structure and properties directly from ab initio molecular dynamics (AIMD) simulations, 2) demonstrates the advantageous symbiosis of computational and experimental collaborations on molten salt research, and 3) simultaneously generates ab initio data sets for fitting an interatomic potential model for classical molecular dynamics (MD) simulations. This work discusses the motivations for AIMD simulations of molten salts, thermophysical properties and structural characteristics of interest, advanced methodologies for AIMD simulations, and several completed AIMD studies on molten salts. Of import are the methodological contributions of this work to AIMD simulations, primarily the radical increase …

Quantum Grover's Oracles With Symmetry Boolean Functions, Peng Gao

Dissertations and Theses

Quantum computing has become an important research field of computer science and engineering. Among many quantum algorithms, Grover's algorithm is one of the most famous ones. Designing an effective quantum oracle poses a challenging conundrum in circuit and system-level design for practical application realization of Grover's algorithm.

In this dissertation, we present a new method to build quantum oracles for Grover's algorithm to solve graph theory problems. We explore generalized Boolean symmetric functions with lattice diagrams to develop a low quantum cost and area efficient quantum oracle. We study two graph theory problems: cycle detection of undirected graphs and generalized …

Preventive Maintenance Through Vibration Analysis., Magdy Mohamed Abou Rayan, Samy Abou Rayan

Mansoura Engineering Journal

Some field experiences of viberation measurements and analysis in preventive maintenance are presented in this paper, the principle of preventive maintenance through viberation measurements are outlined for a CO2 centrifugal compressor train in an Amonia plant. The compressor train consists of two compressor basing driven by a steam turbine and a gearbox. The measurements were collected for a period of eight months. It was shown that by proper vibration measurements and analysis, any fault is rapidly detected. This resulted is immediate repairs and consequently increasing equipment age, which is the philosophy of preventive maintenance rather to repair the damage when …

Theoretical And Experimental Studies On The Combustion Of Synthetic Fuels In Spark Ignition Engines., A. Desoky, Salah El-Emam

Mansoura Engineering Journal

A theoretical and experimental investigation on the performance and emission of spark ignition engine have been made using gasoline, alcohol and gasoline-alcohol mixture as fuels. A thermodynamic model has been developed with superimposed pseudo-kinetic NO and CO formation. This has been used to compute estimated performance and emission data for a spark ignition engine. The model has also been used to compare the prediction performance and emission data when operating the engine with methanol, ethanol and gasoline fuels. A series of an experimental tests were carried out on a single cylinder spark ignition engine to confirm the theoretical results of …

Education Regarding And Adherence To Recommended Nutrition Guidelines Among Dental Students, Camille Frayna, Christoffer Devantier, Braden Harris, Karl Kingsley, Joshua M. Polanski

Dental Medicine Faculty Research

The Dietary Guidelines for Americans (DGA) were developed to reduce or prevent many types of chronic illness, including cancer, heart disease and diabetes. Healthcare provider recommendations may be influenced by understanding of and adherence to the DGA, which may be incorporated into provider training, medical and dental clinical curricula—although few studies have evaluated adherence to the DGA among dental students. This approved retrospective study of voluntary student responses from a first-year dental school nutrition course included a short dietary and exercise survey administered as part of the DGA learning module. A total of N = 299 students completed the voluntary …

Gender Bias In The Classroom: An In-Service To Create Change, David Schmidt

Masters Projects

Female students are not often treated the same way as male students in the elementary classroom. Teachers bring their gender bias into their daily practices and unknowingly encourage male student towards STEM subjects and female students away from STEM subjects. This results in a gender gap in STEM careers. This project aims to combat gender bias by holding an in-service. Research supports the idea that once bias has been addressed in individuals, they are less likely to hold on to their bias. Participants will take a test to discover their bias, be presented with relevant research, read an article on …

Approaches For Sustainable Aviation, Muhammad Muneeb Safdar

International Programs

The ecological condition is worsening worldwide. The harmful emissions produced by aircraft are significant pollutants. Millions of gallons of fuel are burnt everyday during combustion in aircraft engines thus contributing to noxious emissions. These emissions are not only toxic and a respiratory health hazards but are increasing. It is a grave concern for which remedial measures need to be taken by all the stakeholders before the problem become intractable. So, what needs to be done to make aviation environmentally stable. A balanced and integrated policy encompassing the operational improvements, improvements in aircraft and engine technology, and use of sustainable aviation …

An Architect’S Perspective On Indoor Gardens, Chanhyuk Joo

International Programs

Started question with "How to prepare designing an indoor garden in an Architecture perspective." This poster explains requirements for indoor gardens in terms of engineering and physical design, as well as expectations for the future.

Types Of Oil Recovery Methods To Increase Oil Productions, Astrid Rodriguez

International Programs

In the oil industry, different recovery methods are applied to produce a percentage of the hydrocarbon storage in a reservoir. These methods are classified into three principal categories: primary, secondary, and tertiary recovery. Their selection and implementation depend on the reservoir and fluids properties. According to the recovery method selected, it is possible to recover different quantities of hydrocarbon.

Geoindicators For Assessing Illegal Gold Mining Environmental Impacts In Choco, Colombia, Jennifer Angel-Amaya

International Programs

In Choco artisanal gold mining has been made for centuries. However, since 2009, with the rise in gold prices, alluvial mining has been mechanized causing social and environmental devastation.

Colombia´s T-622 (2016) ruling calls for the restoration of affected areas. Geoindicators could be used to assess the environmental impacts prior restoration.

An Automated Method To Enrich Consumer Health Vocabularies Using Glove Word Embeddings And An Auxiliary Lexical Resource, Mohammed Ibrahim, Susan Gauch, Omar Salman, Mohammed Alqahtani

Computer Science and Computer Engineering Faculty Publications and Presentations

Background

Clear language makes communication easier between any two parties. A layman may have difficulty communicating with a professional due to not understanding the specialized terms common to the domain. In healthcare, it is rare to find a layman knowledgeable in medical terminology which can lead to poor understanding of their condition and/or treatment. To bridge this gap, several professional vocabularies and ontologies have been created to map laymen medical terms to professional medical terms and vice versa.

Objective

Many of the presented vocabularies are built manually or semi-automatically requiring large investments of time and human effort and consequently the …

Roles Of A Bradykinin Storm And A Cytokine Storm In Covid-19 Cases, Nouha H. Odeh

Honors College Theses

In the light of recent events, it is imperative to understand the key inflammatory response elements that appear to be the source of more severe ailments resulting from a SARS-CoV-2 viral infection known as Covid-19 The more severe cases of Covid-19 are characterized by a severe inflammatory response resulting in tissue damage. My research proposal aims to investigate the two possible culprits of this response: a bradykinin (BK) storm and an interleukin-6 (IL-6) mediated cytokine storm. In both systems respectively, the excess release of these signals subsequently signals the production of even more of the same response element, resulting in …

Faculty Team Receives First Science Education Partnership Award, Patrick Smith

University of Mississippi News

Project SCORE aims to increase interest in health sciences among Mississippi youth

Swir Emissive Rosindolizine Dyes With Nanoencapsulation In Water Soluble Dendrimers, Satadru Chatterjee, William E. Meador, Cameron Smith, Indika Chandrasiri, Mohammad Farid Zia, Jay Nguyen, Austin Dorris, Alex Flynt, Davita L. Watkins, Nathan I. Hammer, Jared H. Delcamp

Faculty Publications

Shortwave infrared (SWIR) emission has great potential for deep-tissue in vivo biological imaging with high resolution. In this article, the synthesis and characterization of two new xanthene-based RosIndolizine dyes coded ^PhRosIndz and ^tolRosIndz is presented. The dyes are characterized via femtosecond transient absorption spectroscopy as well as steady-state absorption and emission spectroscopies. The emission of these dyes is shown in the SWIR region with peak emission at 1097 nm. ^TolRosIndz was encapsulated with an amphiphilic linear dendritic block co-polymer (LDBC) coded 10-PhPCL-G3 with high uptake yield. Further, cellular toxicity was examined in vitro using HEK (human embryonic …

Modulation Of The Effects Of Class Ib Antiarrhythmics On Cardiac Nav1.5-Encoded Channels By Accessory Navβ Subunits, Wandi Zhu, Wei Wang, Paweorn Angsutararux, Rebecca L. Mellor, Lori L. Isom, Jeanne M. Nerbonne, Jonathan R. Silva

Open Access Publications

Native myocardial voltage-gated sodium (NaV) channels function in macromolecular complexes comprising a pore-forming (α) subunit and multiple accessory proteins. Here, we investigated the impact of accessory NaVβ1 and NaVβ3 subunits on the functional effects of 2 well-known class Ib antiarrhythmics, lidocaine and ranolazine, on the predominant NaV channel α subunit, NaV1.5, expressed in the mammalian heart. We showed that both drugs stabilized the activated conformation of the voltage sensor of domain-III (DIII-VSD) in NaV1.5. In the presence of NaVβ1, the effect of lidocaine on the DIII-VSD was enhanced, whereas the effect of ranolazine was abolished. Mutating the main class Ib …

Validating Deep Learning Inference During Chest X-Ray Classification For Covid-19 Screening., Robbie Sadre, Baskaran Sundaram, Sharmila Majumdar, Daniela Ushizima

Department of Radiology Faculty Papers

The new coronavirus unleashed a worldwide pandemic in early 2020, and a fatality rate several times that of the flu. As the number of infections soared, and capabilities for testing lagged behind, chest X-ray (CXR) imaging became more relevant in the early diagnosis and treatment planning for patients with suspected or confirmed COVID-19 infection. In a few weeks, proposed new methods for lung screening using deep learning rapidly appeared, while quality assurance discussions lagged behind. This paper proposes a set of protocols to validate deep learning algorithms, including our ROI Hide-and-Seek protocol, which emphasizes or hides key regions of interest …

Lightning Arc Channel Effects On Surface Damage Development On A Prseus Composite Panel: An Experimental Study, Dounia Boushab, Pedram Gharghabi, Juhyeong Lee, Thomas E. Lacy Jr., Charles U. Pittman Jr., Michael S. Mazzola, Alexander Velicki

Mechanical and Aerospace Engineering Faculty Publications

Composite aircraft structures are vulnerable to lightning strike damage due to their relatively low electrical and thermal conductivities. A preceding work has investigated the lightning damage resistance of a carbon-epoxy Pultruded Rod Stitched Efficient Unitized Structure (PRSEUS) panel. The damage includes intense local damage (i.e., matrix decomposition/sublimation, fiber rupture, delamination) accompanied by widespread surface damage (i.e., distributed fiber rupture and tow splitting) further from the lightning attachment point. This study focuses on investigating the cause of the widespread surface damage. Two possible driving mechanisms are explored: i) magnetically-induced currents and ii) lightning arc-root/channel expansion. …

The Abacus: A New Approach To Authorization, Jacob Aaron Jess Siebach

Theses and Dissertations

The purpose of this thesis is to investigate the implementation of digital authorization for computer systems, specifically how to implement an efficient and secure authorization engine that uses policies and attributes to calculate authorization. The architecture for the authorization engine is discussed, the efficiency of the engine is characterized by various tests, and the security model is reviewed against other presently existing models. The resulting efforts showed an increase in efficiency of almost two orders of magnitude, along with a reduction in the amount of processing power required to run the engine. The main focus of the work is how …

Effects Of Evidence-Based Relaxation Techniques On Nurse-Patient Communication, Deborah Samuel

Dissertations

Occupational stress in nursing leads to poor patient and staff satisfaction making it essential to address stress among nursing staff and improving patient satisfaction. The purpose of this quantitative quasi-experimental quality improvement (QI) project was to determine to what degree evidence-based relaxation techniques, including music, deep-breathing, progressive muscle relaxation and guided imagery, using the transactional model would reduce stress levels among nursing staff and improve nurse-patient communication on a medical-surgical unit in a community hospital. Lazarus and Folkman's theory of stress and coping best explains stress levels and the need for alternate solutions. Data to evaluate stress levels was collected …

Student Nurse Knowledge And Confidence Regarding Childhood Immunizations, Heather Westergard

Theses and Dissertations

Background: Immunization training is essential for nursing students. However, Brigham Young University's (BYU) Nursing Program lacks data regarding the current curriculum's effect on vaccination knowledge and confidence. Purpose: The purpose of the study is to explore BYU nursing students' knowledge and confidence regarding vaccinations. Methods: Nursing students at BYU in the second and fourth semesters were surveyed using pre-and post-test questionnaires designed to measure student nurses' knowledge of and confidence about immunizations. To help evaluate current curricula established immunization content was taught during both the public health course and pediatric course via direct instruction, assigned reading, quizzes, exams, lab, and …

Gaiety, August 1975

Gaiety, 1975-1977

Co-Editors: Gary Poe, Lila Baker. News Editor: Fred Harris. Graphics: Jim Alley

Special thanks to Rhodes College and the Paul Barret Jr. Library for providing initial scanning of this collection.

A Study Of The Generalizability Of Self-Supervised Representations, Atharva Tendle, Mohammad Rashedul Hasan

School of Computing: Faculty Publications

Recent advancements in self-supervised learning (SSL) made it possible to learn generalizable visual representations from unlabeled data. The performance of Deep Learning models fine-tuned on pretrained SSL representations is on par with models fine-tuned on the state-of-the-art supervised learning (SL) representations. Irrespective of the progress made in SSL, its generalizability has not been studied extensively. In this article, we perform a deeper analysis of the generalizability of pretrained SSL and SL representations by conducting a domain-based study for transfer learning classification tasks. The representations are learned from the ImageNet source data, which are then fine-tuned using two types of target …