Results 1 to 10 of about 827,445 (334)

Micro-structures, nanomechanical properties and flight performance of three beetles with different folding ratios [PDF]

open access: yesBeilstein Journal of Nanotechnology, 2022
When beetles are not in flight, their hind wings are folded and hidden under the elytra to reduce their size. This provided inspiration for the design of flapping-wing micro aerial vehicles (FWMAVs).
Jiyu Sun   +5 more
doaj   +2 more sources

Design and Flight Performance of a Bio-Inspired Hover-Capable Flapping-Wing Micro Air Vehicle with Tail Wing [PDF]

open access: goldAerospace, 2023
A key challenge in flapping-wing micro air vehicle (FWMAV) design is to generate high aerodynamic force/torque for improving the vehicle’s maneuverability. This paper presents a bio-inspired hover-capable flapping-wing micro air vehicle, named RoboFly.S,
Shengjie Xiao   +6 more
doaj   +2 more sources

You are what you eat – The influence of polyphagic and monophagic diet on the flight performance of bees [PDF]

open access: yesEcology and Evolution
Movement performance of insects is an important measure of physiological fitness and is likely affected by novel stressors associated with global change.
Jula‐Klarissa Krüger   +6 more
doaj   +2 more sources

Density of predating Asian hornets at hives disturbs the 3D flight performance of honey bees and decreases predation success [PDF]

open access: yesEcology and Evolution, 2023
Automated 3D image‐based tracking systems are new and promising devices to investigate the foraging behavior of flying animals with great accuracy and precision.
Juliette Poidatz   +4 more
doaj   +2 more sources

Enhanced flight performance in hoverfly migrants. [PDF]

open access: yesiScience
Many animals undergo seasonal migrations in which they travel long distances aided by variations in morphology, physiology, and behavior. Here, we compare the flight characteristics, measured in a tethered flight mill, of autumn migratory and summer non-migratory morphs of the marmalade hoverfly Episyrphus balteatus (Diptera: Syrphidae), an ...
Massy R   +4 more
europepmc   +4 more sources

Attentional Blink in Pilots and Its Relationship With Flight Performance [PDF]

open access: yesFrontiers in Psychology, 2020
ObjectiveIn flight, military pilots need to monitor changes in the external environment and monitor the situation of the aircraft at the same time. Attentional blink (AB) reflects attentional blindness in time.
Fengzhan Li   +3 more
doaj   +2 more sources

Feather holes and flight performance in the barn swallow Hirundo rustica [PDF]

open access: yesAnimal Cells and Systems, 2018
Feather holes are small (0.5–1 mm in diameter) deformities that appear on the vanes of flight feathers. Such deformities were found in many bird species, including galliforms and passerines. Holey flight feathers may be more permeable to air, which could
Piotr Matyjasiak   +4 more
doaj   +2 more sources

Experimental study of the wake interaction between two vertical axis wind turbines

open access: yesWind Energy, 2023
Wakes and wake interactions in wind turbine arrays diminish energy output and raise the risk of structural fatigue; hence, comprehending the features of rotor–wake interactions is of practical relevance.
Ming Huang   +3 more
doaj   +1 more source

On the wake deflection of vertical axis wind turbines by pitched blades

open access: yesWind Energy, 2023
Wake losses are a critical consideration in wind farm design. The ability to steer and deform wakes can result in increased wind farm power density and reduced energy costs and can be used to optimize wind farm designs.
Ming Huang   +2 more
doaj   +1 more source

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