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Unleaded Aviation Fuel: Assessing Stakeholder Perceptions and Preparing an Organization for Change
Get PDFSince the Clean Air Act of 1996 banned the use of leaded fuel for automotive applications, leaded aviation gasoline (AVGAS) has become one of the leading sources of lead pollution in the nation due to the volume of AVGAS consumed in general aviation applications (GAMA, 2019). The Federal Aviation Administration has recently recognized this concern with the establishment of the Eliminate Aviation Gasoline Lead Emissions (EAGLE) initiative, which was formally established in February 2022 to foster an important campaign to research and inform the general aviation community on the process for transitioning to unleaded AVGAS. This essay seeks to inform the general aviation community about a multistep effort in the adoption of unleaded aviation fuels at a collegiate aviation institution in the Midwest. The first step was to assess stakeholder perceptions of the change of unleaded aviation fuel, including awareness, importance of change, environmental impact, and operational risk. The second step included establishing sufficient data collection, analysis, training, and risk reduction strategies to support a transition to unleaded AVGAS. The final step of the transition included the evaluation of operational data postimplementation, which is anticipated to be addressed in a subsequent publication. Survey data and organizational preparation are outlined in this essay
Beyond Convenience: A Mixed-Methods Study of Asynchronous Multimodal Tutoring and Its Impact on Understanding and Connection
Get PDFAlthough traditional asynchronous tutoring is associated with text-based communication, writing centers are beginning to experiment with asynchronous multimodal tutoring with the assistance of accessible and interactive multimedia technologies and instructional platforms like VoiceThread. Using a mixed-methods approach of surveys and interviews of undergraduate students at a Hispanic Serving Institution (HSI), this study explores the potential benefits of asynchronous multimodal tutoring beyond access and convenience: We examine why students choose to submit their papers for asynchronous multimodal feedback, and whether they perceive that the multimodal aspect of the feedback improves their understanding and enhances their connection with tutors
Neuronal Signal Activity Image Classification
Get PDFNeurodegenerative disorders can cause signal disturbances on the neuronal spiking patterns within the brain. Parkinson’s disease, as an example, produces burst firings and synchronized oscillatory signal patterns. Accurately distinguishing between different brain spiking pattern activities is essential in finding effective neuromodulation or neurostimulation treatments for neurodegenerative disorders like Parkinson disease. Due to the lack of publicly available neuronal spiking pattern datasets containing different neuronal signal patterns and classes, we propose the generation of a novel three-class dataset. We then convert the generated signals into 2D images and separate the generated signal images into test and train datasets. We aim to design, implement, train, and evaluate custom neural network architectures to classify the generated signals. After developing five distinct neural network models, we conducted a comparative analysis of their performance. This work represents a giant leap towards real-time neuronal signal classification and the detection of the abnormalities in brain neuronal activit
Personalizing Engineering Education Through Environmental Backgrounds and Augmented Reality
Get PDFThis study aims to design, develop, and evaluate a Personalized Engineering Playground (PEP) that connects students\u27 environmental backgrounds with engineering applications. It investigates the impact of early outdoor experiences on students\u27 motivation to pursue engineering careers. Utilizing a comprehensive survey of over 150 engineering technology students, the study collected both quantitative and qualitative data on nature-related activities, career influences, and environmental perceptions. The findings indicate that activities such as building (23%), exploring (17%), and observing nature (20%) play a significant role in shaping engineering interest. Approximately 45% of the students reported that outdoor experiences had a positive influence on their career paths. These insights will inform the development and implementation of an Augmented Reality (AR) learning tool that integrates students’ environmental backgrounds and artificial intelligence to promote a more innovative, context-aware approach to engineering education
The Role of Oxygen During Thermal Runaway of Lithium-Ion Batteries
Get PDFEnergy storage has become an important technology due to the increasing utilization of renewable resources. Although LIB usage continues to rise, latent defects and abuse pose safety risks. Modeling and simulation tools are applied to simulate failure conditions such as thermal runaway. CFD tools may be used to simulate thermal runaway with consideration of important physics including: gas generation, venting, and combustion of evolved gases. Previous CFD-based studies have investigated thermal runaway and venting, but none have considered the instantaneous composition of gases which may lead to ignition within the cell body. This work explores the progression of thermal runaway in a Li-ion battery cell by modeling the time-dependent generation of individual gaseous species. Simulation results show the gas composition, temperature and residence time do not support autoignition within the cell, rather, in the air surrounding it. For ignition to occur, a local hot spot is necessary
Celebrating Five years of the Journal of the Arts and Special Education and Welcoming our Inaugural Editorial Board
Get PDFThe co-editors of the Journal of the Arts and Special Education (JASE) provide a brief history and overview of recent accomplishments of the journal and describe priorities for the future. These priorities include regular publication cycles, special issues, expanded article types, engagement opportunities, and a recommitment to accessibility. The editorial concludes with guidance for future authors and an introduction to the inaugural editorial board
LEaPP Writing Rubric
Get PDFThe LEaPP Writing Rubric can be used to assess foundational and compositional writing skills for all learners. Foundational skills that are assessed include capitalization, spacing, punctuation, and spelling. Compositional skills that are assessed include writing purpose, topic maintenance, vocabulary, sentence structure, grammar usage, and organization. This rubric allows an educator to quantify and categorize a learner’s writing skills as poor, emerging, developing or consistent. It can be tailored for use with any writing sample at the sentence, single paragraph, or essay level. This document contains directions for use and a brief scoring guide
Imagining Better: Requiring Trust and Imagination in Formal Engineering Education
Get PDFTeachers and students bear the brunt of enacting K–12 engineering while having little input into engineering practices or values. In this reflective essay, a high school engineering teacher and an engineering education researcher reflect on a class bridging engineering and social justice. We describe the development of politicized trust with each other and students while partnering around shared commitments at a predominately Black school (e.g., Vakil et al., 2016). We also explore challenges in decentering conceptions of engineering derived from depoliticized, exclusionary practice. We demonstrate an urgent need to center educators and students from marginalized identities in formal engineering education