Results 11 to 20 of about 731,443 (292)

Supersonic flow over low aspect-ratio wings [PDF]

open access: yes, 1976
An attempt has been made, by means of exp": rimental work, to consolidate and augment existing knowledge of high-speed flows over delta wings. Particular emphasis .
Richards, I. C.
core   +7 more sources

Flow Behavior in Side-View Plane of Pitching Delta Wing [PDF]

open access: yesEPJ Web of Conferences, 2018
In the present investigation, a delta wing which has 70° sweep angle, Λ was oscillated on its midcord according to the equation of α(t)=αm+α0sin(ωet). This study focused on understanding the effect of pitching and characterizing the interaction of vortex
Pektas Mehmet Can   +4 more
doaj   +2 more sources

Leading-edge vortices over swept-back wings with varying sweep geometries [PDF]

open access: yesRoyal Society Open Science, 2019
Micro air vehicles are used in a myriad of applications, such as transportation and surveying. Their performance can be improved through the study of wing designs and lift generation techniques including leading-edge vortices (LEVs).
William B. Lambert   +3 more
doaj   +1 more source

Optimal design of Vertical-Taking-Off-and-Landing UAV wing using multilevel approach

open access: yesInternational Journal for Simulation and Multidisciplinary Design Optimization, 2020
In order to overcome the propre disadvantages of FW(Fixed-Wing) and VTOL(Vertical-Taking-Off-and-Landing) UAV (Unmanned Aerial Vehicle) and extend its application, the hybrid drone is invested more in recent years by researchers and several ...
Yue Hao   +4 more
doaj   +1 more source

Unsteady aerodynamics of nonslender delta wings [PDF]

open access: yesProgress in Aerospace Sciences, 2005
Unsteady aerodynamics of nonslender delta wings, covering topics of shear layer instabilities, structure of nonslender vortices, breakdown, maneuvering wings, and fluid/structure interactions, are reviewed in this paper. Vortical flows develop at very low angles of attack, and form close to the wing surface. This results in strong interactions with the
Gursul, I; id_orcid 0000-0001-7866-4817   +2 more
openaire   +2 more sources

Xylosylation of the Notch receptor preserves the balance between its activation by trans-Delta and inhibition by cis-ligands in Drosophila. [PDF]

open access: yesPLoS Genetics, 2017
The Drosophila glucoside xylosyltransferase Shams xylosylates Notch and inhibits Notch signaling in specific contexts including wing vein development. However, the molecular mechanisms underlying context-specificity of the shams phenotype is not known ...
Tom V Lee   +2 more
doaj   +1 more source

Drosophila Cyclin G Is a Regulator of the Notch Signalling Pathway during Wing Development. [PDF]

open access: yesPLoS ONE, 2016
Notch signalling regulates a multitude of differentiation processes during Drosophila development. For example, Notch activity is required for proper wing vein differentiation which is hampered in mutants of either the receptor Notch, the ligand Delta or
Anja C Nagel   +3 more
doaj   +1 more source

Piezoelectric energy harvesting from flexible delta wings

open access: yesTheoretical and Applied Mechanics Letters, 2018
: The potential for harvesting energy from a flexible delta wing using a piezoelectric bimorph is experimentally investigated. Different configurations of the proposed harvesting system were tested in a wind tunnel over a broad range of airspeeds.
Jamal S. Alrowaijeh, Muhammad R. Hajj
doaj   +1 more source

Encapsulated Leptin-Producing Cells Facilitate Entrainment of Circadian Rhythms in Rodents and Nonhuman Primates. [PDF]

open access: yesAdv Sci (Weinh)
A clinically translatable cell line can be engineered to produce leptin, encapsulated in biomaterial and safely implanted to produce and deliver the metabolic regulating protein within the body. Implantation of these encapsulated cells decreases the time it takes for mice and non‐human primates to adjust to circadian disruptions similar to those ...
Fleury ST   +18 more
europepmc   +2 more sources

Numerical Investigation of the Aerodynamic Properties of a Flying Wing Configuration [PDF]

open access: yes, 2012
The numerical investigations of a generic UCAV configuration are presented. These investigations are part of the DLR internal project UCAV-2010. Compressible speed conditions are considered and presented.
Andreas Schutte   +5 more
core   +1 more source

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