Results 21 to 30 of about 37,262 (339)
Revista Chilena de Entomología, 2023 The High Altitude Fields (HAF) are unique phytosociological features that occur only in certain regions of the Atlantic Forest. It is composed of herbaceous and shrubby vegetation and shallow soils that promote local water infiltration and recharge ...
Roosevelt Heldt Junior +3 more
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
First record of Gynacantha limbalis Karsch, 1892 from Thailand (Odonata: Anisoptera: Aeshnidae) [PDF]
Songklanakarin Journal of Science and Technology (SJST), 2020 Gynacantha limbalis Karsch, 1892 is reported for the first time from Thailand based on photographs taken at San Kala Khiri National Park, Songkhla province (Figure 1).
Andrew J. Pierce, Noppadon Makbun
doaj +1 more source
\u3ci\u3eLibellula Flavida\u3c/i\u3e (Odonata: Libellulidae), a Dragonfly New to Ohio [PDF]
, 2018 Libellula flavida, a widespread but uncommon dragonfly of southeastern and south central North America, is now recorded from Ohio.
Schultz, Tom D
core +2 more sources
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
doaj +1 more source
OFAR-CM: Efficient Dragonfly networks with simple congestion management [PDF]
, 2013 Dragonfly networks are appealing topologies for large-scale Data center and HPC networks, that provide high throughput with low diameter and moderate cost.
Beivide Palacio, Ramon +4 more
core +1 more source
Aerodynamic Effects of Corrugation on Dragonfly Hindwing
Hangkong gongcheng jinzhan, 2019 To study aerodynamic performance of the dragonfly wing at gliding flight at different Reynolds numbers, a three-dimensional model of the dragonfly hindwing with corrugation and a three-dimensional flat plate with the same shape of the dragonfly hindwing ...
Luo Yun +4 more
doaj +1 more source
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
core +1 more source
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
doaj +1 more source