21497 research outputs found
Sort by
Analysis of TESS Data for Pulsating Star - KIC7582608
Get PDFWe present our analysis of the rotational period and principal frequency of the rapidly oscillating Ap star KIC 7582608 using TESS data. To separate the flux of the target star from that of contaminating neighbors, our processing pipeline carries out multiple point spread function fitting on the TESS Full Frame Images (FFIs). TGLC package was used to extract the decontaminated light curves of the star measured in TESS sectors 14, 26, 40, 41, 53, and 74, we estimated the star\u27s pulsation frequencies and its rotation period. Higher temporal resolution data, such as the Target Pixel Files (TPFs) with a cadence of less than 200 seconds, is evidently essential to detect the star’s principal frequency. Pywhiten\u27s Lomb-Scargle frequency analysis was used to calculate the principal frequency and rotation period, which were then compared to the findings utilizing Period 04 and ground-based data. A main frequency of 2.10335 ± 2.33E-08 mHz was found for the 200 sec Sector 74 data. Meanwhile, based on sectors 26 (1800 sec) and 40 (600 sec), rotation periods between 18.99417805 ± 3.47 days and 20.52826489 ± 4.05 days were determined for our star. Our findings suggest that the FFI data is sensitive to the star\u27s rotation period; however, to determine the principal frequency of the star, we need high cadence data (such as sector 74).
Keywords: TESS data, principal frequency detection, rotational period, Lomb-Scargle frequency analysis, point spread function, Period 04, TGLC, PyWhiten, Full Frame Images
Assessing the Mental Wellness of Part 141 Collegiate Aviation Students and their Willingness to Seek Professional Help
No full textCollegiate aviation students encounter distinct mental wellness challenges arising from the rigorous demands of their academic studies, flight training, and personal health and lifestyle. This ongoing study utilizes a non-experimental survey approach to evaluate the mental wellness of collegiate aviation students, including Part 141 pilots, air traffic controllers, Airframe and Powerplant (A&P) mechanics, and Unmanned Aircraft Systems (UAS) students, as well as their willingness to seek professional help for mental health concerns. The research team administered a survey that included demographic questions, established mental wellness assessments, and open-response personal reflection questions. The survey featured the Generalized Anxiety Disorder (GAD-7) scale to measure anxiety levels, the Patient Health Questionnaire (PHQ-9) to assess depression levels, and the Self-Stigma of Seeking Help (SSOSH) scale to evaluate self-stigma associated with seeking professional assistance. The personal reflection questions will help researchers assess concerns about collegiate aviation students disclosing mental health information to the Federal Aviation Administration and its impact on their careers. This research will offer valuable insights into the unique mental health challenges faced by this group, helping students realize they are not alone in their struggles and encouraging them to seek support. By identifying the barriers to seeking mental health support, the study seeks to recommend strategies to better integrate mental health resources into aviation training curriculums. The findings of this study are expected to offer actionable guidance for universities to enhance the overall well-being and academic success of aviation students, providing insight on how institutions can better support their students
Investigating Bacterial Co-culture Growth Responses to Simulated Microgravity
Get PDFWith the popularity of space travel increasing, it is important to understand the effects of microgravity on microbial communities as alterations to bacterial interactions can occur. Staphylococcus epidermidis and Escherichia coli are bacteria that are commonly found within human microbiomes. S. epidermidis is a cocci-shaped gram-positive bacterium that is part of the human skin microbiome. However, it can gather on sites of open skin and enter the body leading to an infection. E. coli is a gram-negative rod-shaped bacterium that can be found in the human gut microbiome. The pathogenic strains of E. coli have the potential to cause harmful conditions in humans such as urinary tract and skin infections. Therefore, it is important to study how S. epidermidis and E. coli influence each other while in a co-culture when exposed to simulated microgravity (SMG) because of the potential changes to the microbiomes of long-term space travelers. This can give insight into the effects of bacterial community interaction in microgravity that can influence astronaut health in long-duration spaceflight. The growth dynamics of E. coli and S. epidermidis post-exposure to SMG as pure cultures and in a co-culture were defined in this experiment. The relative gene expression of growth and biofilm-related genes for E. coli and S. epidermidis post-exposure to SMG for 24 hours in a co-culture were measured. The relative gene expression results showed E. coli target genes, luxS and gapA, and S. epidermidis target gene, luxS, were significantly upregulated post-exposure to SMG for 24 hours in a co-culture
Dr. Farid Dowla, Participant
No full textDr. Dowla, a research scientist at Lawrence Livermore National Laboratory (LLNL), has dedicated his career to advancing knowledge in signal processing, wireless communications, and radar systems since joining LLNL in 1984. His academic journey commenced at MIT, where he received his BS, MS, and PhD degrees in electrical engineering and computer science. His current research interests focus on secure communications, advanced radar systems, and sensor networks. Over his four-decade-long research career, he has contributed significantly to academia, teaching graduate courses in cyber security, wireless communications, radar technology, and machine learning at various University of California and ERAU campuses.
His publication record includes research journals and conferences, along with authored books and edited volumes in his field. Dr. Dowla holds numerous patents in areas such as secure communications, radio frequency identification (RFID) systems, and ultra-wideband (UWB) technology. His contributions have been recognized with prestigious awards like the R&D 100 Winner, LLNL Engineering Technologies Division Gold Award, and IEEE Best Paper Award, among others. Moreover, he has successfully secured substantial grant support for various research projects, showcasing his impact and influence in both academia and industry.https://commons.erau.edu/avcysecworkshop-bios-2024/1015/thumbnail.jp
Dr. Kenneth Freeman, Participant
No full textKenneth Freeman began his career at NASA Ames Research Center working in local and wide area networking, network research and space communications, playing major roles in several engineering and research projects. He then led at team to implement NASA’s Security Operations Center (SOC), building a cyber-security operations center that is the nerve center for the detection and monitoring information security incidents for NASA. He is now leading the ATM-X Urban Air Mobility (UAM) Secure Airspace Technology Group, which develops and demonstrates capabilities, for secure data integrity, resiliency, and information privacy for national airspace environments.
Kenneth Freeman is now Sub-Project Manager of the NAS Exploratory Concepts and Technologies project, which is working to foster airspace integration for secure diverse and scalable cooperative extensible traffic management (xTM) operations.https://commons.erau.edu/avcysecworkshop-bios-2024/1017/thumbnail.jp
Greg Rice, Participant
No full textGreg Rice is the engineering leader for the Cyber Systems R&D team at Collins Aerospace, where he leads an international team focused on the development of new security technologies in connected aviation systems. Prior to joining Collins, Mr. Rice co-founded True Security, where he led design work on secure, ad-hoc sensor networks for embedded systems and new penetration testing services. Today his primary research interests include multi-level systems, application security, software analysis tools, and building high assurance embedded systems.
Mr. Rice’s holds multiple patents in network security mechanisms and intrusion detection and has led the RMF accreditations of embedded systems. His work on the security of avionics has been well recognized; he has served as a subject matter expert on avionics security for the Government Accountability Office and is a frequent conference speaker. Mr. Rice has previously served as PI for multiple S&T programs and today leads innovations and advanced technology development in secure aerospace platforms.https://commons.erau.edu/avcysecworkshop-bios-2024/1041/thumbnail.jp
Dr. Ella Atkins, Participant
No full textDr. Ella Atkins is Fred D. Durham Professor and Head of the Kevin T. Crofton Aerospace and Ocean Engineering Department at Virginia Tech. She was previously a Professor in the University of Michigan’s Aerospace Engineering Department and Robotics Institute.
Dr. Atkins holds B.S. and M.S. degrees in Aeronautics and Astronautics from MIT and M.S. and Ph.D. degrees in Computer Science and Engineering from the University of Michigan. She is an AIAA Fellow and private pilot. She served on the National Academy’s Aeronautics and Space Engineering Board and has authored over 220 refereed journal and conference papers.
Dr. Atkins has pursued research in AI-enabled autonomy and control to support resilience and contingency management in manned and unmanned Aerospace applications. She is Editor-in-Chief of the AIAA Journal of Aerospace Information Systems (JAIS) and a member of the Flight Safety Foundation’s Autonomous and Remotely Piloted Aviation Systems Advisory Committee (ARPAC).https://commons.erau.edu/avcysecworkshop-bios-2024/1004/thumbnail.jp
