Results 31 to 40 of about 216,249 (293)

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

Overview of the current research status of new energy aviation engines

open access: yesHangkong gongcheng jinzhan
In recent years, China′s economy has continued to grow, and the demand for clean energy has become increasingly urgent. The aviation industry has also been actively exploring clean and low emission energy technologies. The use of new fuels and new energy
LIU Xiang   +5 more
doaj   +1 more source

Preparation of Covalent-Ionically Cross-Linked UiO-66-NH2/Sulfonated Aromatic Composite Proton Exchange Membranes With Excellent Performance

open access: yesFrontiers in Chemistry, 2020
Metal-organic frameworks (MOFs), as newly emerging filler materials for polyelectrolytes, show many compelling intrinsic features, such as variable structural designability and modifiability of proton conductivity.
Penglun Zheng   +5 more
doaj   +1 more source

Conceptual Model of Predictive Safety Management Methodology in Aviation

open access: yesAerospace, 2023
Due to the continuous growth of air traffic and the development of aviation systems, the current safety management methodologies should be improved and upgraded.
Dajana Bartulović, Sanja Steiner
doaj   +1 more source

Direct Growth of Transparent Boron Nitride Neutron Shielding Layer for Space Window

open access: yesAdvanced Science, EarlyView.
Direct growth of sp2‐sp3 hybridized BN (HBN) on quartz, enabled by an h‐BN buffer, produces transparent and stable films up to 80 µm thick with high transmittance and strong neutron shielding, making HBN a promising candidate for space windows in long‐term lunar missions.
Dobin Kim   +15 more
wiley   +1 more source

Review of research on icing in aircraft engine fuel systems

open access: yesHangkong gongcheng jinzhan
Icing of aircraft engine fuel system is a key problem in air transportation, which is related to the safety and reliability of flight. The relevant standards, regulations and research progress of icing in aircraft engine fuel system are mainly introduced
WAN Hengcheng   +5 more
doaj   +1 more source

Microscale Mapping of Fiber Strain and Damage in Composite Wrinkled Laminates Using Computed Tomography Assisted Wide‐Angle X‐Ray Scattering

open access: yesAdvanced Science, EarlyView.
This study combines full‐field tomography with diffraction mapping to quantify radial (ε002$\varepsilon _{002}$) and axial (ε100$\varepsilon _{100}$) lattice strain in wrinkled carbon‐fiber specimens for the first time. Radial microstrain gradients (−14.5 µεMPa$\varepsilon \mathrm{MPa}$−1) are found to signal damage‐prone zones ahead of failure, which ...
Hoang Minh Luong   +7 more
wiley   +1 more source

Study on the Effect of Air Velocity and Duct Area on the Heat Dissipation of Lithium-Ion Batteries

open access: yesBatteries
With the growing adoption of lithium-ion batteries, the risk of battery thermal runaway is increasing, so effective temperature regulation for battery systems is essential. The air cooling system for battery thermal management offers advantages such as a
Zhiheng Pan   +5 more
doaj   +1 more source

Flight crew fatigue risk assessment for international flights under the COVID-19 outbreak response exemption policy

open access: yesBMC Public Health, 2022
Background In response to the COVID-19 outbreak, the Civil Aviation Administration of China (CAAC) has formulated Implementation Measures for Exemption of Crew Duty Periods and Flight Time Restrictions during the COVID-19 Outbreak.
Junya Sun   +4 more
doaj   +1 more source

Combining the Pitcher and Lotus Plant: Supericephobic and Superhydrophobic Silicone Films

open access: yesAdvanced Science, EarlyView.
Based on bench‐top nanomolding of polydimethylsiloxane (PDMS) with optimized silicone oil content, we developed hierarchically structured silicone films by essentially combining the properties of the lotus and pitcher plant; particularly we are able to achieve water contact angle as high as 171° and ice adhesion strength as low as 11.5 kPa (i.e ...
Cliff L. W. Ng   +4 more
wiley   +1 more source

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