Showing 41 - 60 results of 969 for search '"altitude"', query time: 0.04s Refine Results
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    Seasonal and Altitude Dependence of Thermospheric Metastable Helium Densities Measured by Fluorescence Lidar by C. Geach, B. Kaifler

    Published 2025-01-01
    “…We report on a series of 51 measurements by this instrument spanning an entire winter season and extending to an altitude of 1,000 km, revealing a broad He(23S) layer that peaks at higher altitudes than previously expected.…”
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  3. 43

    A scoping review protocol on brain PaCO2 levels at altitude. by Hanna Tang, Laurel Charlesworth, Manoj Lalu, Brian Dewar, Risa Shorr, Dariush Dowlatshahi

    Published 2025-01-01
    “…Little is known about how rapid changes of altitude and atmospheric pressure can impact cerebral perfusion and ischemic burden. …”
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    THE IMPACT OF ALTITUDE TRAINING ON LUNG ADAPTATION AND ENDURANCE IMPROVEMENT IN ELITE VOLLEYBALL ATHLETES by Nora DEDA

    Published 2025-01-01
    Subjects: “…altitude training, pulmonary capacity, VO2 max, endurance, volleyball, erythropoietin, hemoglobin.…”
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    FLIGHT HOURS AND BMI AGAINST TUC IN HYPOBARIC CHAMBER ALTITUDE 25.000 FEET by Zakiah Nada Nuralfilail, Pritha Maya Savitri, Niniek Hardini, Aulia Chairani, Andriyanto, Agus Budi Maryoto, Samsul A., Yaya Kardiana, Agus Cakrahaya

    Published 2024-07-01
    “…Conclusion: After examining 53 subjects, it was found that there was no relationship between total flight hours and TUC (p-value = 1.000) or BMI and TUC( p-value = 0.307) in the hypobaric chamber at an altitude of 25.000 feet.…”
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    The Channel Estimation and Modeling in High Altitude Platform Station Wireless Communication Dynamic Network by Xiaoyang Liu, Xiaoping Zeng, Chao Liu, Wanping Liu, Yihao Zhang

    Published 2017-01-01
    “…In order to analyze the channel estimation performance of near space high altitude platform station (HAPS) in wireless communication system, the structure and formation of HAPS are studied in this paper. …”
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    Relationship Between NM Data and Radiation Dose at Aviation Altitudes During GLE Events by N. Larsen, A. Mishev

    Published 2024-06-01
    “…The arrival of high‐energy SEPs in the atmosphere leads to an enhancement of the radiation environment, with the enhancement at aviation altitudes being particularly hazardous to human health as pilots, crew, and airline passengers can be subjected to dangerous levels of radiation during a GLE. …”
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  16. 56

    Deep learning‐based unmanned aerial vehicle detection in the low altitude clutter background by Zeyang Wu, Yuexing Peng, Wenbo Wang

    Published 2022-07-01
    “…Abstract Unmanned aerial vehicles (UAVs), widely used due to their low cost and versatility, pose security and privacy threats, which calls for their reliable recognition at low altitudes. However, strong ground clutter and multipath effects severely interfere with the weak radar echoes reflected off the micro‐UAVs, resulting in severe degradation of recognition reliability. …”
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    Nonlinear Attitude and Altitude Trajectory Tracking Control of a Bicopter UAV in Geometric Framework by Vijay Reddy Vundela, Vijay Muralidharan

    Published 2024-01-01
    “…The performance of the proposed altitude and attitude stabilization controller is validated through experimental hardware developed in-house. …”
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