Results 31 to 40 of about 46,913 (245)

Distributing Three-Dimensional Aerodynamic Load to Fem Nodes [PDF]

open access: yesMATEC Web of Conferences, 2019
Aiming at the requirement of the load conversion in aeronautics and astronautics static strength analysis, a three-dimensional aerodynamic load equivalent distribution method based on least squares is proposed.
Weimin Sun
doaj   +1 more source

Welded microstructure and orientation variation of duplex Ti alloy through electrodynamic vibration

open access: yesJournal of Materials Research and Technology, 2022
Duplex Ti alloys are widely used in the petrochemical industry as well as in the biomedical, aeronautics and astronautics engineering fields. A duplex Ti alloy weldment is uniform and has superior properties in terms of welded microstructure evolution ...
Chia-Heng Liu   +5 more
doaj   +1 more source

Research on the safe separation corridor of the combined aircraft and its generation method

open access: yesXibei Gongye Daxue Xuebao, 2023
Aerial safety separation is an important indicator to evaluate the flight performance of medium and low speed combination aircraft. In this paper, the concept of impact box and safe separation corridor will be introduced for the air separation problem of
PAN Yihua   +4 more
doaj   +1 more source

From the Discovery of the Giant Magnetocaloric Effect to the Development of High‐Power‐Density Systems

open access: yesAdvanced Materials Technologies, EarlyView.
The article overviews past and current efforts on caloric materials and systems, highlighting the contributions of Ames National Laboratory to the field. Solid‐state caloric heat pumping is an innovative method that can be implemented in a wide range of cooling and heating applications.
Agata Czernuszewicz   +5 more
wiley   +1 more source

Wave‐Partition‐Governed Dual‐Site Spallation in Single Crystals

open access: yesAdvanced Science, EarlyView.
Crystalline anisotropy shapes shock‐wave propagation and the resulting damage evolution in single crystals. Large‐scale molecular dynamics and damage modeling uncover a dual‐spallation mechanism driven by anisotropic elasticplastic wave separation, which mitigates damage accumulation.
Youlin Zhu   +6 more
wiley   +1 more source

Experimental and Numerical Investigations on the Ignition of RBCC Gas-Oxygen/Kerosene Rocket Ejector

open access: yesInternational Journal of Aerospace Engineering, 2021
The rocket ejector refers to a core component of a rocket-based combined cycle (RBCC) engine. The ignition is of critical significance for rocket ejection. Reliable and stable ignition crucially determines the normal operation of the engine.
Bingyang Liu   +5 more
doaj   +1 more source

A Feature-Map-Based Method for Explaining the Performance Degradation of Ship Detection Networks

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2023
The unknowability of the inner workings limits the magnitude of performance improvement of ship target detection networks in synthetic aperture radar (SAR) images under Gaussian noise.
Peng Jia   +5 more
doaj   +1 more source

Astronaut ophthalmic syndrome [PDF]

open access: yesThe FASEB Journal, 2017
ABSTRACT During and after missions on the International Space Station, some astronauts experience ophthalmic changes, including choroidal folds, optic disc edema, cotton‐wool spots, globe flattening, and refraction changes.
Sara R, Zwart   +6 more
openaire   +2 more sources

An Optically Transparent Water‐Based Metamaterial Absorber for Ultra‐Broadband EMI Shielding in Coal Mines

open access: yesAdvanced Science, EarlyView.
This study introduces a novel metamaterial absorber integrating water as a lossy medium with patterned indium tin oxide (ITO) films to achieve simultaneous optical transparency and ultra‐wideband electromagnetic absorption over 0.52‐40 GHz. It effectively overcomes the limitations of conventional opaque and bulky shielding materials, offering a ...
Xiaojun Huang   +5 more
wiley   +1 more source

Ieee Access Special Section Editorial:Complex System Health Management Based On Condition Monitoring And Test Data

open access: yesIEEE Access, 2018
The global manufacturing industry is facing a crucial transformation with the rapid developments of German Industries 4.0, Industrial Internet of the U.S., and China Manufacturing 2025.
Datong Liu   +6 more
doaj   +1 more source

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