Results 101 to 110 of about 180,865 (340)
Final design and fabrication of an active control system for flutter suppression on a supercritical aeroelastic research wing [PDF]
The final design and hardware fabrication was completed for an active control system capable of the required flutter suppression, compatible with and ready for installation in the NASA aeroelastic research wing number 1 (ARW-1) on Firebee II drone flight
Hodges, G. E., Mcgehee, C. R.
core +1 more source
Wind Tunnel Measurements for Flutter of a Long-Afterbody Bridge Deck
Italian National Conference on Sensors, 2017 Bridges are an important component of transportation. Flutter is a self-excited, large amplitude vibration, which may lead to collapse of bridges. It must be understood and avoided.
Zengshun Chen +3 more
semanticscholar +1 more source
Advanced Science, EarlyView.A catalyst‐free waterborne epoxy vitrimer has been developed through the curing of 1,4‐butanediol diglycidyl ether with L‐tartaric acid. The incorporation of abundant hydroxyl groups and the neighboring group participation effect enable this vitrimer to exhibit rapid stress relaxation and achieve complete degradation in hot water.
Jianqiao Wu +8 more
wiley +1 more source
Journal of Marine Science and EngineeringAs onshore space resources become exhausted, the migration of wind turbines to offshore areas is an inevitable trend. The blades of offshore wind turbines are typically over 100 m long, and this increased nonlinearity in the blades escalates the risk of ...
Weiliang Liao +5 more
doaj +1 more source
A preliminary study of the effects of vortex diffusers (winglets) on wing flutter [PDF]
Some experimental flutter results are presented for a simple, flat-plate wing model and for the same wing model equipped with two different upper surface vortex diffusers over the Mach number range from about 0.70 to 0.95.
Doggett, R. V., Jr., Farmer, M. G.
core +1 more source
Advanced Science, EarlyView.Electrosensitive heterogeneous short fibers can accurately respond to ultrasonic field regulation through the synergistic interaction of piezoelectric and conductive dual elements. At an ultrasound intensity of 1.5 W cm−2, it can effectively activate bacterial peroxisome and necrotic apoptotic pathway and promote bacterial apoptosis.
Xiaoyu Han +11 more
wiley +1 more source
Ultrasensitive Diamond Cantilever‐Based Optical Microphone
Advanced Science, EarlyView.The first demonstration that high quality diamond cantilevers function as high‐sensitivity acoustic transducers is reported, combining CVD diamond cantilevers and an extrinsic Fabry‐Perot optical configuration. High transduction efficiency yields record sensitivity (51.5 VPa−1) and MDP (0.018 µPa/Hz$\rm {\sqrt {Hz}}$), enabling durable, low‐noise ...
Shen Tian +8 more
wiley +1 more source
Left Atrial Thrombus in Atrial Fibrillation/Flutter Patients in Relation to Anticoagulation Strategy: LATTEE Registry [PDF]
, 2022 Agnieszka Kapłon‐Cieślicka +32 more
openalex +1 more source
Optical measurement of unducted fan flutter [PDF]
A nonintrusive optical method is described for flutter vibrations in unducted fan or propeller rotors and provides detailed spectral results for two flutter modes of a scaled unducted fan. The measurements were obtained in a high-speed wind tunnel.
Kurkov, Anatole P., Mehmed, Oral
core +1 more source
Rethinking Sustainable Batteries
Advanced Energy Materials, EarlyView.This perspective examines sustainability across the entire battery lifecycle, from mining and manufacturing to use and end of life. Twelve principles for ‘green’ batteries are outlined, and it is argued that joint industrial, academic, and policy efforts are essential to building a truly sustainable energy future. Abstract Batteries will play a pivotal
Heather Au +5 more
wiley +1 more source