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Detecting Anomalous Motions in the Shell-Polishing Process Using Sensor Fusion and Machine Learning
Get PDFThis study presents a novel method to examine the fine-abrasive polishing process for finishing small, diamond-coated spherical Si shells. These shells, which serve as targets for the Inertial Confinement Nuclear Fusion (ICF) experiments at Lawrence Livermore National Labs (LLNL), contain the fuel and need an ultra-fine surface finish. However, collisions among shells during polishing may damage their surface quality. We equipped the polishing setup with a vibration sensor and a camera to monitor the shell interactions. We fused the data from these sensors to detect anomalous shell interactions at high resolution (0.1 sec). We developed a Convolutional Neural Network (CNN) model to classify video frames of rapidly moving shells as close or apart. Then, we extracted vibration spectra from the sensor fused data and trained the EGO-MDA model to identify spectral bands that differentiate between the energy levels when the shells are together and far apart. Our findings reveal that an average of two spectral bands of vibration signals suffices to classify when shells are together versus apart, with an accuracy of ~80%. We observed a significant difference in median energy levels in the identified spectral bands, contingent on whether the shells are close or apart. Furthermore, we observed an increase in voltage within the band-pass filtered signals during significant interaction events within a 0.5-sec timeframe, which reflects the momentum transfer when the shells collide. We adapted the Local Interpretation Model-agnostic Explanations (LIME) to identify the important time-frequency signature from the vibration signals, uniquely identifying a prominent interaction event, such as a collision. Our findings indicate that the 1.3 KHz and 2.25 KHz bands are vital for classifying shell interactions. For the time windows (0.1 sec) where the image frames capture a prominent interaction event, the vibration spectra in these frequency bands exhibit a ~25% higher energy
Addressing Teacher Housing in Texas: An Architectural Research and Design Studio at Texas A&M University
No full textThis report summarizes the motives, methods, and findings of an interdisciplinary research and design studio project accomplished in the Spring and Summer of 2022, including architectural drawings of envisioned teacher houses in Cuero, La Grange, and Livingston, Texas.Portions of this research and design project were funded by the endowment of the John Only Greer Professorship
Irrigation Water Quality, Critical Salt Levels for Peanuts, Cotton, Corn & Grain Sorghum
No full textFueling the mind, feeding the world: Communication in agriculture - Communicating orally (COM05)
Get PDFFor additional information, visit the Texas A&M University Science Communications Lab at https://scicomm.tamu.edu/.This packet contains instructional materials and online modules prepared for Fueling the mind, feeding the world: Communication in agriculture - Communicating orally (COM05). It includes curriculum, PowerPoint slides, activities, handouts, grading considerations, and notes for instructors. These materials were created as part of the USDA Grant entitled "Fueling the Mind, Feeding the World: Enhancing Communication and Decision-Making Skills of Secondary Agricultural Education Students."
MODULE OVERVIEW: Presentation and oral communication skills are important skills for students who are often expected to give presentations as part of course assignments or for employees who must speak at work. From speaking to a future employer in an elevator to presenting research at a conference, individuals need to understand how to communicate orally. Being an exceptional scientist is not enough���individuals must learn to communicate beyond the lab. This module will walk learners through the process of creating and delivering an oral presentation, from understanding your audience to body language during presentation.Secondary Education, Two-Year Postsecondary Education, and Agriculture in the K-12 Classroom (SPECA) Challenge Grants Program no. 2019-38414-30265 and Hatch Project No. TEX09825 from the USDA National Institute of Food and Agriculture
Education necessity for veterinary-producer relationship creation and sustainability
No full textThe purpose of this research is to enhance economic efficiency and sustainability of small and medium livestock operations through partnerships with local veterinarians and applied education.A participatory needs assessment, exploring the willingness of and barriers to producer-veterinarian partnerships to enhance small/medium livestock operations, was distributed to Texas producers and veterinarians. Quantitative and qualitative data were collected via online, open-ended survey questions and interviews. Responses were analyzed using SPSS and HyperRESEARCH to identify relevant terms, ideas, patterns, or themes.USD
