Results 231 to 240 of about 44,579 (279)

Experimental and Spectral Analysis of the Wake Velocity Effect in a 3D Falcon Prototype with Oscillating Feathers and Its Application in HAWT with Biomimetic Vortex Generators Using CFD. [PDF]

Biomimetics (Basel)
Parra HG, Guacaneme JA, Gaona EE, Cerón-Muñoz HD.   +3 more
europepmc   +1 more source

In vivo sonic hedgehog pathway antagonism temporarily results in ancestral proto-feather-like structures in the chicken. [PDF]

PLoS Biol
Cooper RL, Milinkovitch MC.
europepmc   +1 more source

Faeces, Feathers and Flight: Understanding of Escape Behaviour in Incubating Eurasian Woodcocks (<i>Scolopax rusticola</i>). [PDF]

Ecol Evol
Sládeček M, Brynychová K, Nutilová L, Šálek ME.   +3 more
europepmc   +1 more source

Organizational principles of integumentary organs: Maximizing variations for effective adaptation. [PDF]

Dev Biol
Chuong CM, Wu P, Yu Z, Liang YC, Widelitz RB.   +4 more
europepmc   +1 more source

Circovirus infection in Croatian population of Eurasian griffon vultures (Gyps fulvus). [PDF]

Sci Rep
Lozica L, Faraguna S, Lukač M, Keča I, Martinković F, Gottstein Ž.   +5 more
europepmc   +1 more source

The Flight of the Shuttlecock: A Comparative Analysis of Synthetic and Natural Feather Badminton Shuttles

S. Jin
openalex   +1 more source

Feather Defects in a Juvenile Common Swift (<i>Apus apus</i>) Associated with a Circovirus Infection. [PDF]

Vet Sci
Legler M, Heenemann K.
europepmc   +1 more source

Acoustics of rubbing feathers: the velvet of owl feathers reduces frictional noise.

J Exp Biol
Liu LG, Clark CJ.
europepmc   +1 more source

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Origin of feathered flight

Paleontological Journal, 2010
The origin of flight in birds and theropod dinosaurs is a many-sided and debatable problem. We develop a new approach to the resolution of this problem, combining terrestrial and arboreal hypotheses of the origin of flight. The bipedalism was a key adaptation for the development of flight in both birds and theropods.
E. N. Kurochkin, I. A. Bogdanovich
openaire   +1 more source

Failure of flight feathers under uniaxial compression

Materials Science and Engineering: C, 2017
Flight feathers are light weight engineering structures. They have a central shaft divided in two parts: the calamus and the rachis. The rachis is a thinly walled conical shell filled with foam, while the calamus is a hollow tube-like structure. Due to the fact that bending loads are produced during birds' flight, the resistance to bending of feathers ...
Kristina Schelestow, Omar P. Troncoso, Fernando G. Torres   +2 more
openaire   +2 more sources