Results 91 to 100 of about 5,063 (265)
Journal of Field Robotics, EarlyView.ABSTRACT As a crucial puzzle piece of deep space exploration, exploring small bodies can provide significant scientific insights and valuable mineral resources. Unlike missions to the Moon and Mars, small‐body missions pose distinct technical challenges, including communication delays, weak gravity, and uncertain environments. This paper reviews a full
Xin Zhang +3 more
wiley +1 more source
Journal of Field Robotics, EarlyView.ABSTRACT Uncrewed underwater vehicles (UUVs) have transformed oceanographic research through autonomous data gathering. Similarly, lake and other aquatic research can potentially be automated and transformed. However, UUVs would need to be smaller, lighter, less complex, and cheaper than currently available to make them more practical and user‐friendly
James M Rand +3 more
wiley +1 more source
Numerical simulation of low aspect ratio fixed wings for MAV applications [PDF]
Turbulent flow past low aspect ratio (AR) thin wing with two different planform shapes viz., rectangular and inverse Zimmerman has been carried out at a Reynolds number (Re)=2.4´105 to analyze their aerodynamic characteristics using the Unsteady Reynolds
Subrahmanya, MB +2 more
core
Vortex interactions between forewing and hindwing of dragonfly in hovering flight
Theoretical and Applied Mechanics Letters, 2015 Two tandem flapping wings in viscous flow were modeled by using the immersed boundary method for exploration of the aerodynamics of dragonfly in hovering flight.
Chun-Mei Xie, Wei-Xi Huang
doaj +1 more source
Big Bird: A global dataset of birds in drone imagery annotated to species level
Remote Sensing in Ecology and Conservation, EarlyView.Drones are a valuable tool for surveying birds, but manually detecting and identifying birds in drone images is costly. We assembled a diverse dataset of 23 865 images of birds captured with 21 different drones across 11 countries. We labelled 4824 of these images, detailing the location, species, posture category, age category, and sex of 49 990 birds
Joshua P. Wilson +19 more
wiley +1 more source
Vortex Lift Contributions in the Spanwise Plane in Flapping Wings
, 2006 Vortices in the vicinity of the wingtip generate lift force in the spanwise plane of flapping wings. In previous studies by the authors to determine the contribution of pure spanwise flow (flow parallel to the wing surface) to the overall lift force in ...
Altman, Aaron +3 more
core +1 more source
Advanced Intelligent SystemsFlying animals such as insects and birds have strain receptors on their wings. The functions and information processing capabilities of these strain receptors, however, are largely unknown.
Kenta Kubota, Hiroto Tanaka
doaj +1 more source
Remote Sensing in Ecology and Conservation, EarlyView.Vertical‐looking radar provides a first multi‐year analysis of migratory bat phenology in Europe. Bat activity was lowest in winter, increased from spring, and peaked in summer, with similar timing of pre‐ and post‐maternity migrations across years.
Silvia Giuntini +5 more
wiley +1 more source
Journal of Applied Fluid Mechanics, 2021 An experimental study on the effect of fluid-structure interaction on noise generation in Micro Air Vehicle (MAV) with fixed and flapping membrane Tipula sp. wing is investigated.
S. Syam Narayanan, R. Asad Ahmed
doaj
Key Technical Fields and Future Outlooks of Space Manipulators: A Survey
SmartBot, EarlyView.This paper systematically reviews the technological development of space manipulators, emphasizing the unique challenges posed by space environments. It examines four areas: structural design, modeling, planning, and control, while introducing typical ground test platforms.
Gang Chen +12 more
wiley +1 more source