Results 121 to 130 of about 522,105 (314)
Optimization of a Composite Wing Subject to Multi Constraints [PDF]
, 2013 In this thesis, an investigation has been carried out into a minimum weight optimization analysis of a composite wing with multi design constraints under both static and dynamic loadings. The study includes the influence of a morphing leading edge on the
Fu, Qiang
core
A Review of Flapping Wing MAV Modelling
, 2015 Flapping wing flight has been extensively studied in the field of entomology, resulting in observations on the methods of lift production, high manoeuvrability and efficient flight for various natural flyers in differing flow regimes and leading to ...
Mwongera VM
core +1 more source
Indirect Control and Design of Insect-Like Flapping-Wing Micro Aerial Vehicle
, 2017 Considering the Insect-like flapping-wing micro aerial vehicle, this paper has analyzed the composite of quasi-steady aerodynamics. That process has associated with the affection due to addition quality produced by wake capture.
Wang ZD(王志东), Dong WZ(董维中)
core +2 more sources
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
The effect of passive deformation of dragonfly wing on aerodynamic characteristics
Nihon Kikai Gakkai ronbunshu, 2016 Dragonflies can perform both of gliding and flapping flight and have high maneuverability in spite of small-size. The aim of this study is to develop Micro Air Vehicle (MAV) based on the flight of dragonfly.
Hisayoshi NAKA, Hiromu HASHIMOTO
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
Efficiency of lift production in flapping and gliding flight of swifts.
PLoS ONE, 2014 Many flying animals use both flapping and gliding flight as part of their routine behaviour. These two kinematic patterns impose conflicting requirements on wing design for aerodynamic efficiency and, in the absence of extreme morphing, wings cannot be ...
Per Henningsson +2 more
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
A Review of Design and Fabrication of the Bionic Flapping Wing Micro Air Vehicles
Micromachines, 2019 Bionic flapping-wing micro air vehicles (FWMAVs) are promising for a variety of applications because of their flexibility and high mobility. This study reviews the state-of-the-art FWMAVs of various research institutes driven by electrical motor ...
Chen Chen, Tianyu Zhang
semanticscholar +1 more source
Experimental Investigation of Aerodynamics of Feather-Covered Flapping Wing
Applied Bionics and Biomechanics, 2017 Avian flight has an outstanding performance than the manmade flapping wing MAVs. Considering that the feather is light and strong, a new type of the flapping wing was designed and made, whose skeleton is carbon fiber rods and covered by goose feathers as
Wenqing Yang, Bifeng Song
doaj +1 more source