Results 111 to 120 of about 477,598 (318)
Development of an interface for an ultrareliable fault-tolerant control system and an electronic servo-control unit [PDF]
The NASA Ames Research Center sponsors a research program for the investigation of Intelligent Flight Control Actuation systems. The use of artificial intelligence techniques in conjunction with algorithmic techniques for autonomous, decentralized fault ...
Shaver, Charles, Williamson, Michael
core +1 more source
Advanced Science, EarlyView.Founded on a rapidly formed nanostructured tannic acid/polyethyleneimine (TA/PEI) platform, an ultrafast (∼5 min), universal interfacial engineering strategy utilizing stearoyl chloride (SC) and Phytic acid (PA) enables precise fabrication of Janus membranes across diverse substrates.
Wenqing Zhang +7 more
wiley +1 more source
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.
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Advanced Science, EarlyView.Non‐ideal redox electrolytes still govern the Nernstian behavior of electrode potentials in aqueous organic redox flow batteries under operation. We utilized this effect to analytically predict two scenarios of battery performance degradation. ABSTRACT Aqueous organic redox flow batteries (AORFBs) enhance the sustainability of battery energy storage ...
Faudillah Alhumairah +9 more
wiley +1 more source
Dual-channel Potential Energy Recovery and Load Balancing Methods for Large Hydraulic Excavators
工程科学与技术Objective When recovering potential energy based on load balancing, the usual expectation is that the load force and the hydraulic force provided by the accumulator are fully balanced so as to reduce the energy provided by the hydraulic system.
Weiping WANG, Shun LU
doaj
Zero-Gravity Vortex Vent and PVT Gaging System [PDF]
Space Station and satellite reservicing will require the ability to vent gas on orbit from liquid supply or storage tanks and to gage liquid quantity under microgravity conditions.
Downey, M. G., Trevathan, J. T.
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Two-dimensional oscillating airfoil test apparatus [PDF]
, 1977 A two dimensional oscillating airfoil test apparatus is presented as a method of measuring unsteady aerodynamic forces on an airfoil or rotor blade section.
Gibson, F. L. +2 more
core +2 more sources
Multi‐scale Optimization on Interfacial Evaporative Cooling for Photovoltaic Performance Enhancement
Advanced Science, EarlyView.This study presents a passive siphon‐driven interfacial evaporative cooling technology for photovoltaics. A multiscale multiphysics model is developed and validated experimentally. Results show that optimizing installation parameters reduces operating temperature by up to 22.3 °C and boosts power efficiency by 8.9%, offering a practical pathway for ...
Fuxiang Li +5 more
wiley +1 more source
A study of low-cost reliable actuators for light aircraft. Part A: Chapters 1-8 [PDF]
An analysis involving electro-mechanical, electro-pneumatic, and electro-hydraulic actuators was performed to study which are compatible for use in the primary and secondary flight controls of a single engine light aircraft.
Eijsink, H., Rice, M.
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Advanced Science, EarlyView.This research demonstrates that incorporating 10 wt.% NASICON‐type Na3Zr2Si2PO12 into Na3SbS4 sulfide electrolytes mitigates interfacial instability and structural defects. The resulting composite enhances ionic conductivity to 3.97 * 10−4 S cm−1 and reduces activation energy.
Celastin Bebina Thairiyarayar +4 more
wiley +1 more source