Results 41 to 50 of about 416,763 (296)

Research on the Fatigue Life Scatter Factor Value Based on Measured Data

open access: yesHangkong gongcheng jinzhan, 2020
With the deep development of baseline spectrum or severe spectrum, it is necessary to use the measured data to develop the load spectrum in spectrum developing method and life scatter factor.
WANG Chuangqi, MENG Xinyi
doaj   +1 more source

Contrast Icing Wind Tunnel Tests between Normal Droplets and Supercooled Large Droplets

open access: yesAerospace, 2022
In order to compare and analyze the similarities and differences between normal droplet icing shapes and supercooled large droplet icing shapes, SADRI carried out normal droplet and supercooled large droplet icing wind tunnel tests in the NRC−AIWT icing ...
Zhirong Han, Jiangtao Si, Dawei Wu
doaj   +1 more source

Bio‐Inspired Multimodal Hardware Front‐End Enabled by 2D Floating‐Gate Memory for UAV Perception

open access: yesAdvanced Functional Materials, EarlyView.
A MoS2/h‐BN /graphene floating‐gate memory underpins a bio‐inspired multimodal front end that integrates visual, inertial, and airflow cues. A 4 × 4 FG memory array encodes temporal intensity differences, while IMU‐ and airflow‐driven threshold modulation suppresses self‐motion artifacts, enabling fast, low‐power, robust autonomous UAV tracking and ...
Lianghao Guo   +11 more
wiley   +1 more source

Effect of SO2/salt spray environment on properties of conductive rubber

open access: yesJournal of Aeronautical Materials
The adaptability of conductive rubber in SO2/salt spray environment was studied by using graphene-filled conductive fluoroether rubber and alloy nickel powder-filled conductive silicone rubber in“SO2/salt spray” test.
WU Xuanxuan   +3 more
doaj   +1 more source

QCGAT aircraft/engine design for reduced noise and emissions [PDF]

open access: yes, 1980
The high bypass ratio QCGAT engine played an important role in shaping the aircraft design. The aircraft which evolved is a sleek, advanced design, six-place aircraft with 3538 kg (7,800 lb) maximum gross weight. It offers a 2778 kilometer (1500 nautical
Lanson, L., Terrill, K. M.
core   +1 more source

Correlated Dual‐Gradient Electrodes Enabling Spatially Synchronized Sulfur Redox in High‐Mass‐Loading Li–S Batteries Under High Current Densities

open access: yesAdvanced Materials, EarlyView.
Coupling a dual‐gradient carbonized framework with Fe2O3/Fe‐N‐C catalytic sites enables spatially synchronized sulfur redox across the entire electrode thickness in high‐mass‐loading Li–S batteries. This synergistic structural–catalytic design effectively mitigates concentration, ohmic, and electrochemical polarization, thereby achieving high‐capacity ...
Yuxuan Zhang   +6 more
wiley   +1 more source

Fatigue indicators for metal structures: from aircraft to bridges

open access: yesAviation
The papers focus on a fatigue monitoring method for two types of engineering structures: (a) aircraft and (b) steel bridges. However, the potential application of this new approach extends beyond these examples.
Mykhailo Karuskevych   +3 more
doaj   +1 more source

Tailor‐Made Protective LixAlSy Layer for Lithium Anodes to Enhance the Stability of Solid‐State Lithium–Sulfur Batteries

open access: yesAdvanced Materials Interfaces, EarlyView.
An intentionally added, chemically formed LixAlSy coating stabilizes the lithium–electrolyte interface in solid‐state Li–S batteries. The layer suppresses side reactions, preserves smooth charge transfer, and improves ion transport from the start. This approach offers a practical route to more durable solid‐state batteries and a clearer understanding ...
Xinyi Wang   +4 more
wiley   +1 more source

Nonlinear Aeroelastic Response Analysis of Fully Moving Wing with Free Play

open access: yesHangkong gongcheng jinzhan, 2022
The nonlinearity of free play is common existed in the control system of warcraft fully moving wing,which may not only affect the validity of the system ground vibration test data,but also lead to the deviation of aircraft aeroelastic stability boundary.
WANG Fei   +3 more
doaj   +1 more source

Loading Mode Dependence of Twin‐Twin Boundary Formation in a Textured Magnesium Alloy

open access: yesAdvanced Materials Interfaces, EarlyView.
The structures of twin‐twin boundaries formed by interactions between twin variants sharing the same or different zone axes in a deformed magnesium alloy are demonstrated. Lattice distortion around complicated interfaces promotes grain refinement in the subsequent thermomechanical process, enhancing the mechanical performance of magnesium alloys ...
Yuzhi Zhu   +7 more
wiley   +1 more source

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