Results 21 to 30 of about 35,330 (281)
Effects of deformation and vibration characteristics of wings on flapping flight
Mechanical Engineering Journal, 2015 The dragonfly wing is passively deformed under flapping and has the strength to withstand high flapping frequency simultaneously. These characteristics of deformation and vibration of the wing are important for flapping flight.
Hisayoshi NAKA, Hiromu HASHIMOTO
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High-performance 3D waveguide architecture for astronomical pupil-remapping interferometry [PDF]
, 2014 The detection and characterisation of extra-solar planets is a major theme driving modern astronomy, with the vast majority of such measurements being achieved by Doppler radial-velocity and transit observations.
Charles, Ned +8 more
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Numerical Investigation on Flapping Aerodynamic Performance of Dragonfly Wings in Crosswind
International Journal of Aerospace Engineering, 2020 Numerical simulations are performed to investigate the influence of crosswind on the aerodynamic characteristics of rigid dragonfly-like flapping wings through the solution of the three-dimensional unsteady Navier-Stokes equations. The aerodynamic forces,
Chao Wang +3 more
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Natura Sloveniae, 2017 Records of the biting midge Forcipomyia paludis (Macfie, 1936) from Slovenia and Bosnia and Herzegovina are reported herewith as the first finds of F. paludis in both countries, together with new records from Croatia and Sweden.
Damjan Vinko +3 more
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Structural Analysis of a Dragonfly Wing [PDF]
, 2010 Dragonfly wings are highly corrugated, which increases the stiffness and strength of the wing significantly, and results in a lightweight structure with good aerodynamic performance.
Jongerius, S.R., Lentink, D.
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A computational study of the aerodynamic performance of a dragonfly forewing in gliding flight
MATEC Web of Conferences, 2018 Gliding flight is a common mode of flight for dragonfly, the objective of the current research is to use numerical simulations to explore whether the corrugations have positive effect on aerodynamic performance of the dragonfly wings in gliding flight ...
Liu Huixiang +4 more
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Discovery of an Isolated Population of \u3ci\u3eAnax Longipes\u3c/i\u3e in Michigan (Odonata: Aeshnidae) [PDF]
, 2017 Anax longipes is a large aeshnid dragonfly previously unknown from Michigan. Adults and larvae were found in abundance at a series of experimental ponds within the E.S.
Kielb, Michael A, O\u27Brien, Mark F
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Ecology and Evolution, 2020 This paper investigates species richness and species occupancy frequency distributions (SOFD) as well as patterns of abundance–occupancy relationship (SAOR) in Odonata (dragonflies and damselflies) in a subtropical area.
Samuel Renner +4 more
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Insects, 2020 In Middle Asia, the dragonfly Pantala flavescens makes regular seasonal migrations. In spring, sexually mature dragonflies (immigrants) arrive in this region for reproduction.
Sergey N. Borisov +4 more
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mAbsNatural killer (NK) cells are effector cells of the innate immune system that distinguish between healthy and abnormal cells through activating and inhibitory receptor signaling.
Daniel Fallon +4 more
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