Results 241 to 250 of about 12,466 (308)

<i>Microraptor</i> reveals specialized gliding capabilities in multiwinged early paravians. [PDF]

Proc Natl Acad Sci U S A
Hefler C, Wang Y, Wang X, Zheng X, Kaye TG, Grosmougin M, Chotard M, Barlow L, Qiu H, Dececchi TA, Habib MB, Shyy W, Pittman M.   +12 more
europepmc   +1 more source

Insect-scale flapping-wing MAVs with variable transmission ratio and wingspan: achieving payload adaptability, and self-stabilizing hovering. [PDF]

Microsyst Nanoeng
Lu X, Wu Y, Chen J, Chen Y, Wu X, Xiao D.   +5 more
europepmc   +1 more source

Insulin-like peptides play distinct roles in nutrient-dependent plasticity in Drosophila. [PDF]

G3 (Bethesda)
Henstridge MA, Slater B, Kannangara JR, Mirth CK.   +3 more
europepmc   +1 more source

Structural and Material Optimization of a Sensor-Integrated Autonomous Aerial Vehicle Using KMU-3 CFRP. [PDF]

Polymers (Basel)
Nurgizat Y, Uzbekbayev A, Fedorov I, Bebenin A, Karypov A.   +4 more
europepmc   +1 more source

Challenging the long-held "pied piper" hypothesis: evidence of southward migration of corn earworm (<i>Helicoverpa zea</i>) in North America. [PDF]

Front Insect Sci
Twaibu AA, Calixto ES, Beuzelin JM, Esquivel IL, Paula-Moraes SV.   +4 more
europepmc   +1 more source

Wing Membrane Thickness, Allometric Scaling and Wing Interference Patterns in Damselflies - A Target of Sexual Selection?

Li M, Tsuboi M, Runemark A, Svensson EI, Brydegaard M.   +4 more
europepmc   +1 more source

Study of the Reverse Delta Wing [PDF]

Journal of Aircraft, 2011
Particle image velocimetry was used in a low-speed wind tunnel to investigate the vortex structures of a slender reverse delta wing at various angles of attack and roll. This work investigates the characteristics of the vortices generated downstream in planes perpendicular to the freestream direction and their dependence on angles of attack and roll ...
Afaq Altaf, Ashraf A. Omar, Waqar Asrar, Hani Bin Ludin Jamaluddin   +3 more
openaire   +2 more sources

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Fuzzy control of wing rock for slender delta wings

TENCON'92 - Technology Enabling Tomorrow, 1993
Fuzzy logic-based roll controllers are designed to control wing-rock motion of a free-to-roll stinged delta wing. The dynamics of an aircraft is a complex function of flight conditions. The free-to-roll stinged delta wing permits investigation of these variations, as well as the highly nonlinear dynamics of limit cycle at high angle-of-attack.
J. H. Tarn, F. Y. Hsu
openaire   +1 more source

The pitching delta wing

AIAA Journal, 1985
Delta wings in steady flow can provide high lift at large angles of attack and are therefore used on many highperformance aircrafts. However, the unsteady aerodynamic properties of a delta wing are practically unknown, although vital for operating and designing airplanes for poststall and other maneuvering.
Mohamed Gad-el-Hak, Chih-Ming Ho
openaire   +1 more source