Technical note: Constraining the hydroxyl (OH) radical in the tropics with satellite observations of its drivers – first steps toward assessing the feasibility of a global observation strategy [PDF]
Atmospheric Chemistry and Physics, 2023 Despite its importance in controlling the abundance of methane (CH4) and a myriad of other tropospheric species, the hydroxyl radical (OH) is poorly constrained due to its large spatial heterogeneity and the inability to measure tropospheric OH with ...
D. C. Anderson +9 more
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Ozone Monitoring Instrument (OMI) Aura nitrogen dioxide standard product version 4.0 with improved surface and cloud treatments [PDF]
Atmospheric Measurement Techniques, 2021 We present a new and improved version (V4.0) of the NASA standard nitrogen dioxide (NO2) product from the Ozone Monitoring Instrument (OMI) on the Aura satellite.
L. N. Lamsal +21 more
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High-Precision Binary Object Detector Based on a BSF-XNOR Convolutional Layer
IEEE Access, 2021 Recently, building an efficient and robust model for object detection has attracted the attention of the vision community. Although binary networks have a fast inference speed, they cannot be used directly on mobile devices such as unmanned aerial ...
Shaobo Wang +4 more
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A Shape-Based Method for Continuous Low-Thrust Trajectory Design between Circular Coplanar Orbits
International Journal of Aerospace Engineering, 2017 The shape-based method can provide suitable initial guesses for trajectory optimization, which are useful for quickly converging a more accurate trajectory.
Qun Fang +3 more
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Animal Flight Dynamics I. Stability in Gliding Flight
Journal of Theoretical Biology, 2001 Stability is as essential to flying as lift itself, but previous discussions of how flying animals maintain stability have been limited in both number and scope. By developing the pitching moment equations for gliding animals and by discussing potential sources of roll and yaw stability, we consider the various sources of static stability used by ...
Thomas, A, Taylor, G
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A TSR Visual Servoing System Based on a Novel Dynamic Template Matching Method
Sensors, 2015 The so-called Tethered Space Robot (TSR) is a novel active space debris removal system. To solve its problem of non-cooperative target recognition during short-distance rendezvous events, this paper presents a framework for a real-time visual servoing ...
Jia Cai +3 more
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Analysis and Demonstration of First Cross-Support Interferometry Tracking in China Mars Mission
Remote Sensing, 2022 Delta-Differential One-Way Ranging (DeltaDOR) is widely used in deep spacecraft navigation, and cross support could enhance navigation accuracy with more interferometry baselines and longer baseline.
Songtao Han +7 more
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Flight guidance concept for the launching and landing phase of a flying wing used in an airborne wind energy system [PDF]
Wind Energy ScienceAirborne wind energy (AWE) is an emerging technology that harvests energy by utilizing tethered airborne systems in wind fields. Given their favorable aerodynamic characteristics, employing flying wings as airborne systems holds considerable promise for ...
D. F. Duda +3 more
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On mathematical modelling of insect flight dynamics in the context of micro air vehicles [PDF]
, 2006 This paper discusses several aspects of mathematical modelling relevant to the flight dynamics of insect flight in the context of insect-like flapping wing micro air vehicles (MAVs).
Ansar, Salman A. +2 more
core +1 more source
IEEE Access, 2020 This paper presents an adaptive caging configuration design algorithm of the hyper-redundant manipulator for dysfunctional satellite pre-capture. Taking advantages of the extreme flexibility and hyper-redundancy, the hyper-redundant manipulator wraps its
Wenya Wan, Chong Sun, Jianping Yuan
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