Results 81 to 90 of about 1,317,358 (306)
The effect of passive deformation of dragonfly wing on aerodynamic characteristics
Nihon Kikai Gakkai ronbunshu, 2016 Dragonflies can perform both of gliding and flapping flight and have high maneuverability in spite of small-size. The aim of this study is to develop Micro Air Vehicle (MAV) based on the flight of dragonfly.
Hisayoshi NAKA, Hiromu HASHIMOTO
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Bimetallic Nanoparticles as Cocatalysts for Photocatalytic Hydrogen Production
Advanced Functional Materials, EarlyView.Recent developments have introduced bimetallic nanoparticles as effective cocatalysts for photocatalytic systems. This review explores the rapidly expanding research on bimetallic cocatalysts for photocatalytic production of hydrogen, emphasizing the creation of carrier‐selective contacts, localized surface plasmon resonance effects, methodologies for ...
Yufen Chen +4 more
wiley +1 more source
Study on high performance of a ship propulsion device by using the Weis-Fogh mechanism
Journal of Fluid Science and Technology, 2018 The purpose of this study is to develop a high performance propulsive mechanism with high efficiency at high sailing speed by using a mechanism of rotary reciprocating wing motion based on the two-dimensional Weis-Fogh model.
Masahiko SAKAMOTO, Michihisa TSUTAHARA
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Optimal redesign study of the harm wing [PDF]
, 1984 The purpose of this project was to investigate the use of optimization techniques to improve the flutter margins of the HARM AGM-88A wing. The missile has four cruciform wings, located near mid-fuselage, that are actuated in pairs symmetrically and ...
Mcintosh, S. C., Jr., Weynand, M. E.
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Advanced Functional Materials, EarlyView.The study presents biodegradable and recyclable mixed‐matrix membranes (MMMs), hydrogels, and cryogels using luminescent nanoscale metal‐organic frameworks (nMOFs) and biopolymers. These bio‐nMOF‐MMMs combine europium‐based nMOFs as probes for the status of the materials with the biopolymers agar and gelatine and present alternatives to conventional ...
Moritz Maxeiner +4 more
wiley +1 more source
Aerodynamics of a Wing with a Wingtip Flapper
Fluids, 2018 In the present study, an oscillating membrane flapper was pivotally attached to the tip of a conventional rigid wing. Stroke-averaged aerodynamic forces were measured for the range of the flapping frequency, showing significant increases in the lift ...
Longfei Zhao +2 more
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Advanced Functional Materials, EarlyView.This work presents self‐propelled CRISPR/Cas9‐functionalized Au–MRs for rapid, amplification‐free, “on‐the‐fly” DNA detection. By harnessing motion‐assisted signal recovery, the platform achieved the limit of detection in low fM DNA concentrations, enabling detection across a wide dynamic range within only 5 min, which is significantly faster than any ...
Jyoti +3 more
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Engineering Applications of Computational Fluid MechanicsCryogenic wind tunnels (CWT) perform high Reynolds number aerodynamic tests in a cryogenic environment and simulate hypersonic flights. However, condensation under cryogenic conditions presents a major challenge to test’s reliability.
Jiaxin Hou +3 more
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Description Of An Anaplastic Rhabdomyosarcoma In A Cockatiel (Nymphicus Hollandicus)
Acta Veterinaria, 2015 Rhabdomyosarcoma is a malignant tumor of the skeletal muscles that is occasionally observed in free-living and pet birds. A case of malignant rhabdomyosarcoma in the musculature of the right wing of a captive female cockatiel (Nymphicus hollandicus) was ...
Ciprian Ober +7 more
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Analysis of Mach number 0.8 turboprop slipstream wing/nacelle interactions [PDF]
Data from wind tunnel tests of a powered propeller and nacelle mounted on a supercritical wing are analyzed. Installation of the nacelle significantly affected the wing flow and the flow on the upper surface of the wing is separated near the leading edge
Dahlin, J. A. +2 more
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