Results 141 to 150 of about 691,823 (323)
Anisotropic Boundary Layer Adaptivity of Multi-Element Wings
, 2014 Multi-element wings are popular in the aerospace community due to their high lift performance. Turbulent flow simulations of these configurations require very fine mesh spacings especially near the walls, thereby making use of a boundary layer mesh ...
Chitale, Kedar C. +4 more
core +1 more source
Remorphable Architectures: Reprogramming Global Bistability through Locally Bistable Metamaterials
Advanced Materials, EarlyView.Local bistable reconfiguration in mechanical metamaterials is leveraged in globally bistable architectures to enable in situ reprogrammable transition pathways through state flip of individual building blocks. The local‐to‐global correspondence of instabilities empowers soft robotic systems with on‐demand morphing traits, as well as aerospace ...
Lei Wu +3 more
wiley +1 more source
Advanced Materials, EarlyView.A nonlinear optical microscopy technique is introduced that enables rapid imaging of hexagonal boron nitride monolayers, which are usually optically invisible. The nonlinear mixing of mid‐infrared and visible laser pulses enables full crystallographic imaging through phase‐resolved sum‐frequency generation microscopy, where the resonant excitation of a
Niclas S. Mueller +15 more
wiley +1 more source
THE INFLUENCE OF SULFURIC ACID ANODIZING ELECTROCHEMICAL PROCESS ON SURFACE TREATMENT ADHESION
Nonconventional Technologies Review, 2019 This paper presents the influence of sulphuric acid anodizing electrochemical process on surface treatment adhesion, by testing two distinct scenarios. The paper presents the general context in the aerospace industry related to product service life, as ...
Vlad Ciprian Cupsan +2 more
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Aerospace Medicine and Biology: A continuing bibliography with indexes, supplement 187 [PDF]
This supplement to Aerospace Medicine and Biology lists 247 reports, articles and other documents announced during November 1978 in Scientific and Technical Aerospace Reports (STAR) or in International Aerospace Abstracts (IAA).
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Proton Selective Nanoporous Atomically Thin Graphene Membranes for Vanadium Redox Flow Batteries
Advanced Materials, EarlyView.A scalable high‐performance proton‐exchange‐membrane architecture is demonstrated that integrates monolayer CVD graphene with Ar plasma‐engineered Angstrom‐scale proton‐selective pores, stacked to mitigate non‐selective defects, and interfaced with an ultrathin (≈300 nm) polybenzimidazole layer sandwiched between two Nafion 211 sheets.
Pavan Chaturvedi +7 more
wiley +1 more source
The NASA/DOD aerospace knowledge diffusion research project: A research agenda [PDF]
The project has both immediate and long term purposes. In the first instance it provides a practical and pragmatic basis for understanding how the results of NASA/DoD research diffuse into the aerospace R and D process.
Kennedy, John M., Pinelli, Thomas E.
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Advanced Materials, EarlyView.Sub‐atomic scale separation of hydrogen isotopes (H+/D+) require near pristine h‐BN membranes, and scalable synthesis of such high‐quality h‐BN comparable to mechanically exfoliated crystals remains a significant challenge. This study reports a scalable Fe‐catalyzed Machine‐Learning Enabled Chemical vapor deposition process for bottom‐up large‐area ...
Pavan Chaturvedi +8 more
wiley +1 more source