Results 91 to 100 of about 1,247,418 (410)
Upper atmosphere pollution measurements (GASP) [PDF]
The environmental effects are discussed of engine effluents of future large fleets of aircraft operating in the stratosphere. Topics discussed include: atmospheric properties, aircraft engine effluents, upper atmospheric measurements, global air sampling,
Holdeman, J. D., Rudey, R. A.
core +1 more source
Advanced Science, EarlyView.Rational A‐site entropy engineering in perovskites induces dual‐exchange‐enhanced magnetoelectric coupling, achieving ultra‐efficient microwave absorption with superior reflection loss and broad bandwidth. Abstract High‐entropy engineering at the A‐site, combined with the variable valence states of Mn ions and diverse bonding configurations of ...
Mengru Li +10 more
wiley +1 more source
Approximate dynamic model of a turbojet engine [PDF]
An approximate dynamic nonlinear model of a turbojet engine is elaborated on as a tool in studying the aircraft control loop, with the turbojet engine treated as an actuating component.
Artemov, O. A.
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Advanced Science, EarlyView.A new multi‐step β‐SiC deposition strategy for anti‐oxidation Cf/C composites successfully achieves dual‐performance breakthrough of anti‐oxidation property (≈700 h at 1500 °C)and mechanical property (bending strength of 215 MPa and adhesion strength of 9.4 MPa).
Dou Hu +7 more
wiley +1 more source
Highly integrated digital electronic control: Digital flight control, aircraft model identification, and adaptive engine control [PDF]
The highly integrated digital electronic control (HIDEC) program at NASA Ames Research Center, Dryden Flight Research Facility is a multiphase flight research program to quantify the benefits of promising integrated control systems.
Baer-Riedhart, Jennifer L. +1 more
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Advanced Science, EarlyView.Electrospinning a composite of PVDF, HfO2, and nano‐Cu transforms the discrete precursors into a continuous nanofiber mesh, forming a multi‐interface heterostructure with embedded nanoparticles. The presence of HfO2 and nano‐Cu at the fiber interfaces induces a highly aligned β‐phase, which enhances piezoelectric crystallinity and improves the material'
Jiawei Gu +9 more
wiley +1 more source
Recent Progress in Mechanoluminescence for Multi‐Dimensional Stress Monitoring
Advanced Science, EarlyView.Multi‐dimensional stress visualization technology (0D point detection, 1D linear distribution, 2D planar imaging, 3D volume reconstruction) has become a focus of attention in the field of stress sensing. The transition from “points” to “multi‐dimensional spatial fields” facilitates real‐time, in situ, and high‐resolution visualization of stress ...
Xiuxia Yang +3 more
wiley +1 more source
Comparative study of alternative biofuels on aircraft engine performance
, 2017 Aviation industries are vulnerable to the energy crisis and simultaneously posed environmental concerns. Proposed engine technology advancements could reduce the environmental impact and energy consumption. Substituting the source of jet fuel from fossil-
M. H. Azami, M. Savill
semanticscholar +1 more source
Advanced Science, EarlyView.A kind of new CNDs‐based materials with reversible mechano‐responsive phosphorescence emission through incorporating CNDs into the supramolecular rigid network is leveraged for aerospace applications, where the CND‐embedded film demonstrated memorable visualization of stress distribution in wings under sudden mechanical events (e.g., micro‐impacts ...
Yachuan Liang +7 more
wiley +1 more source
Numerical Analysis and Verification of the Gas Jet from Aircraft Engines Impacting a Jet Blast Deflector [PDF]
, 2018 Fu-dong Gao +3 more
openalex +1 more source