Results 11 to 20 of about 338,807 (317)
Applied Mechanics, 2023 Nowadays, great efforts of ongoing research are devoted to hybrid-electric propulsion technology that offers various benefits, such as reduced noise and pollution emissions and enhanced aircraft performance and fuel efficiency.
Amine Benmoussa, Pedro Vieira Gamboa
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Sensors, 2022 The article presents the analysis of the impact point dispersion reduction using lateral correction thrusters. Two types of control algorithms are used and four sources of uncertainties are taken into account: aerodynamic parameters, thrust curve ...
Mariusz Jacewicz +3 more
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Evaluation method of privacy protection effect based on multi-layer fuzzy comprehensive evaluation
网络与信息安全学报, 2020 Aiming at the problem that the evaluation of the privacy protection effect from a single data level cannot describe the overall privacy protection effect of the network environment, with the help of the fuzzy comprehensive evaluation method, the privacy
YU Yihan, FU Yu, WU Xiaoping
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CFD Aided Ship Design and Helicopter Operation
Journal of Marine Science and Engineering, 2022 In support of Canadian industrial and defence ship design and offshore helicopter operations, a series of Ship–Helicopter Operational Limits Analysis and Simulation (SHOLAS) projects are being conducted at the National Research Council Canada (NRC) in ...
Weixing Yuan +5 more
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International Journal of Digital Earth, 2020 Earth observations and model simulations are generating big multidimensional array-based raster data. However, it is difficult to efficiently query these big raster data due to the inconsistency among the geospatial raster data model, distributed ...
Fei Hu +7 more
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Simulation Model to Calculate Bird-Aircraft Collisions and Near Misses in the Airport Vicinity
Aerospace, 2018 Annually, thousands of birds collide with aircraft. The impact usually has lethal consequences for the bird, the involved aircraft can experience severe damage. The highest bird strike risk occurs at low altitudes.
Isabel C. Metz +6 more
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Remote Sensing, 2023 Unmanned aerial vehicles (UAVs) have emerged as a highly efficient means of monitoring landslide-prone regions, given the growing concern for urban safety and the increasing occurrence of landslides.
Dongmei Xie +5 more
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Handling Qualities Analysis of an Unmanned Aircraft Vehicle for Agricultural Spraying
Journal of Aerospace Technology and Management, 2020 The use of unmanned aircraft vehicles (UAVs) for the most diverse aeronautic missions is a reality. Then, with the rise of precision agriculture (PA), the viability of the incorporation of this technology in the countryside on both big and small ...
Artur Gustavo Slongo +3 more
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Geophysical Research Letters, 2023 A clear air turbulence (CAT) occurred on 30 December 2020 over Tokyo, Japan. The CAT was largely generated by breaking Kelvin‐Helmholtz (KH) instability waves in the free atmosphere.
R. Yoshimura +5 more
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Modeling and Application of Dynamic Soaring by Unmanned Aerial Vehicle
Applied Sciences, 2022 Albatross have a significant gliding ability called dynamic soaring. In the bionic study, dynamic soaring has a great potential to enhance Unmanned Aerial Vehicles (UAVs) flight range and endurance. The previous study on dynamic soaring mainly focused on
Wei Wang, Weigang An, Bifeng Song
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