4,590 research outputs found

    Factors Affecting Air Traffic Controller’s Weather Dissemination to Pilots

    Get PDF
    As the number of flights in the United States continues to rise steadily, an equally amplified need for reliability and safety has come to the forefront of aviation research. One of the most alarming trends is the number of general aviation (GA) accidents during severe weather events that occur yearly, with fatalities occurring in more than half of these cases. This study focuses on identifying factors influencing weather dissemination of Air Traffic Controllers (ATC) to GA pilots. Ten factors affecting controllers’ performance during severe weather events were identified through an in-depth literature review including controller mental workload, situation awareness, weather information format and accuracy, weather information needs, weather tool limitations, inaccurate assumption and bias, controller training and expereince, regulatory factor, supervisory factors, and pilot-controller relationship. Recommendation can be developed to address each factors so that aviation safety could be enhanced in severe weather situations

    Relationship Between Binge Drinking, Food Restriction, and Mental Health in College Students

    Get PDF
    Binge drinking is a prevalent problem among college students and it is impacting many aspects of lives. This study focuses on the detriments of binge drinking on college students’ nutrition and mental health. An anonymous online survey was administered through Facebook, Instagram, Snapchat, and Discord. The survey included basic demographic questions and questions on frequency of drinking, eating habits while drinking, typical daily food consumption, and mental-well being. Pearson Correlation Coefficient was used to analyze data in SPSS version 25.0. There is an association between binge drinking, food choices, and mental health among college students. Because of the effects of binge drinking, it is important to be conscious of drinking habits to protect physical and mental health.https://orb.binghamton.edu/research_days_posters_2023/1063/thumbnail.jp

    Resolving spin, valley, and moir\'e quasi-angular momentum of interlayer excitons in WSe2/WS2 heterostructures

    Full text link
    Moir\'e superlattices provide a powerful way to engineer properties of electrons and excitons in two-dimensional van der Waals heterostructures. The moir\'e effect can be especially strong for interlayer excitons, where electrons and holes reside in different layers and can be addressed separately. In particular, it was recently proposed that the moir\'e superlattice potential not only localizes interlayer exciton states at different superlattice positions, but also hosts an emerging moir\'e quasi-angular momentum (QAM) that periodically switches the optical selection rules for interlayer excitons at different moir\'e sites. Here we report the observation of multiple interlayer exciton states coexisting in a WSe2/WS2 moir\'e superlattice and unambiguously determine their spin, valley, and moir\'e QAM through novel resonant optical pump-probe spectroscopy and photoluminescence excitation spectroscopy. We demonstrate that interlayer excitons localized at different moir\'e sites can exhibit opposite optical selection rules due to the spatially-varying moir\'e QAM. Our observation reveals new opportunities to engineer interlayer exciton states and valley physics with moir\'e superlattices for optoelectronic and valleytronic applications

    Unconventional superconductivity in the nickel-chalcogenide superconductor, TlNi2_2Se2_2

    Full text link
    We present the results of a study of the vortex lattice (VL) of the nickel chalcogenide superconductor TlNi2Se2, using small angle neutron scattering. This superconductor has the same crystal symmetry as the iron arsenide materials. Previous work points to it being a two-gap superconductor, with an unknown pairing mechanism. No structural transitions in the vortex lattice are seen in the phase diagram, arguing against d-wave gap symmetry. Empirical fits of the temperature-dependence of the form factor and penetration depth rule out a simple s-wave model, supporting the presence of nodes in the gap function. The variation of the VL opening angle with field is consistent with earlier reports of of multiple gaps
    • 

    corecore