100039 research outputs found
Sort by
A Probabilistic Kp and Hp Driven Auroral Boundary Model Using 28 Years of DMSP Data
Get PDFThis paper uses energy flux data from the DMSP F6 thru F19 satellites to construct a new equatorward auroral boundary model. This method of processing the data allows one to easily extend boundary detections to different instrument generations because it is based on a standard deviation value instead of hard thresholds. Using this method, the paper provides statistics from just under 1 million auroral boundaries between 1986 and 2014. These statistics are based on normal distribution fits for each Kp/Hp and MLT bin, which allows one to specify the boundary for an arbitrary distribution percentile. The paper compares how the model performs for driving by Hp30, Hp60, and Kp and finds that Hp30 is the best representation of the data. Finally, the paper provides specifications to recreate the model for the 50th and 95th percentiles for Kp and Hp30
Atmospheric Waves Experiment (AWE) Thermal Control System: From Design Through On-Orbit Thermal Performance
Get PDFThe Atmospheric Waves Experiment (AWE) will provide the first global characterization of atmospheric waves that originate in Earth’s lower atmosphere and affect space weather. The instrument has been installed on the International Space Station (ISS) ExPRESS Logistics Carrier (ELC) 1 since November 2023. The main thermal control system consists of a passive, ambient temperature, bi-directional radiator to which pyrolytic graphite sheet (PGS) thermal straps connect four independent detectors, whose temperatures are actively controlled by thermoelectric coolers (TECs). This paper discusses the thermal design, thermal model correlation efforts (both with test temperature data and flight temperature data), and how the predictions compare to on-orbit measured temperatures. Included is a discussion of the various models used for thermal predictions, which covers the Thermal Desktop model as well as an analytical model scripted in MATLAB that accounts for time varying changes in the environment over the life of the mission. Designing an instrument for flight on the ISS is unique in that 1) many more attitudes must be considered for all the various maneuvers the ISS performs and 2) the interchange and environmental impact of the ISS makes the radiation exchange much more complicated than solo flight. These challenges will be discussed along with how the AWE thermal team handled them and the impact they had on the error between predictions and measured on-orbit temperatures
Overcoming Contamination Obstacles in Additive Manufacturing a Monolithic Propulsion Structure for the SunRISE Mission
Get PDFThe SunRISE propulsion system utilizes an additively manufactured monolithic structure containing a main tank, plenum, and six thrusters. The complex design geometry and novel manufacturing approach of this structure lends itself to several problems, primarily related to the consistent fabrication of the thruster channels. Standard cleaning methods for stereolithography printing were inadequate to meet program requirements for this structure, leading to the development of a rigorous cleaning approach and intermediate characterization of the thruster throughput during the manufacturing process. In this paper, we present the cleaning and characterization approach that lent to the successful manufacturing of the SunRISE propulsion structure
Principles and Practices for Creating Inherently Resilient SmallSats Despite Constrained Resources
Get PDFOver the past few years, small satellites have become heavily utilized for both constellations and single vehicle missions. Many organizations have learned how to be successful with these platforms however, while small, they are not simple systems and first-time creators of these systems still suffer high rates of failure. AFRL\u27s Small Satellite Portfolio has established guiding practices/principles for satellite design that help reduce overall mission risk based upon both community and internal lessons learned. These principles help make the design technically resilient and can also help with programmatic execution. This paper will discuss the principles with some detail (such as designing for a tumble, expecting failure) and discuss approaches to risk management to enable fast and nimble execution and communication
Curriculum Subcommittee Agenda November 7, 2024
Get PDFApproval of Minutes - October 3, 2024 Program Proposals Semester Course Approval Reviews: https://usu.curriculog.com/ Other Business Adjourn: 3:00 p
Motivating Students Who Don\u27t Care: A Book Review
No full textReaching and motivating students who seem disengaged and under-invested appears to be a universal challenge for nearly all college professors. Sometimes it\u27s easy to ignore these students instead of having the courage to experiment with strategies that may inspire them. Motivating Students Who Don\u27t Care: Proven Strategies to Engage All Learners is the title of a second edition book by Allen N. Mendler. Although intended for a K-12 audience, this book includes principles, practices, and ideas that are also applicable to instructors in higher education. This book addresses ways to use technology and digital tools to enhance learning and explores ideas for reducing student anxiety and responding to an uncertain and ever-changing educational landscape. This section will be presented as a book review and will summarize key messages and chapters in this book: (1) understanding why students might feel unmotivated, (2) examining processes and techniques to guide, inspire, and support students who are struggling, (3) learning how to emphasize effort, and (4) exploring ways to build strong and trusting teacher-student relationships
Risks, Mistakes, and Resilience: Cultivating Student Persistence Through Class Culture
No full textIn this workshop we will discuss how to help students develop resilience and cultivate persistence. This workshop will focus on creating a class culture where students are able to take risks, embrace the mistakes that come from taking risks, and seek feedback as they prepare to take future risks. In this workshop, participants will have an opportunity to participate in a hands on learning exercise that will assist them in preparing to cultivate a growth mindset within their students
Reimagining Office Hours
No full textOffice hours are a valuable opportunity for instructors to connect with students, fostering a sense of community, building a relationship-rich educational experience, and providing support for student success. Yet, many instructors struggle with low attendance and limited student engagement with office hours. This workshop draws from insights found in Relationship-Rich Education by Felten and Lambert to explore innovative strategies for improving office hour interactions.Participants will be introduced to a range of effective practices used by instructors across various disciplines to encourage student participation and build stronger relationships outside the classroom. Presenters will review deliberate choices regarding office hour locations, such as holding sessions in student-frequented spaces or creating a more welcoming atmosphere. Additionally, we will discuss the importance of instructor availability, how to introduce office hours at the beginning of a semester, the benefits of renaming or rebranding office hours, and the value of including course assignments that require instructor-student connection.By the end of the session, attendees will gain practical insights and actionable ideas to enhance their own office hour practices. Join us to explore how courage in teaching can build community and transform traditional office hours into meaningful interactions that benefit both students and educators
Whiteness: Six Stages of Identity Development
No full textMulticultural inclusion cannot exist in our North American schools without educators acknowledging that many of us live like snowflakes in a white bubble. This presentation includes the social concept of race, the characteristics of whiteness, and Ruth Helms\u27 stages of white identity. Come with curiosity and an open mind
Embracing Where We Are: Insights Into Students\u27 Engagement With AI
No full textMany different opinions (with the occasional anecdotal experience thrown in) exist amongst faculty as to how the students are engaging with AI and what their perceptions and attitudes are regarding AI. Using their best judgements and these opinions, faculty make different choices about curriculum and course policies that impact how they teach and the student experience within their courses. As teaching faculty, it can feel as if we are attempting to navigate an overwhelming landscape when it comes to making these decisions about AI within courses. The current presentation will explore data collected from this last academic year with students at Utah State University involving their attitudes, experiences, and perceptions of usage of AI. A discussion of this data and how we might use it to better inform our teaching practices will be addressed. Future recommendations will be discussed and ideas shared on how we can better navigate student AI usage within our courses