Results 141 to 150 of about 869,960 (293)

A 3D‐Printed SFE‐Graded Alloy Mitigates Cryogenic Discontinuous Plastic Flow and Hydrogen Embrittlement

open access: yesAdvanced Science, EarlyView.
A novel strategy features gradient composition and stacking fault energy‐tuned (CoCrMn)100‐2xFexNix fabricated via in situ alloying additive manufacturing. This design circumvents cryogenic discontinuous plastic flow and hydrogen embrittlement of metallic materials under quasi‐static loading and hydrogen‐rich environment relevant to lunar polar ...
Renhao Wu   +11 more
wiley   +1 more source

Mobility Management Technologies for 6G-Oriented Low Earth Orbit Satellite Communication Systems

open access: yes天地一体化信息网络
The LEO satellite system, with its unique advantages such as global coverage and low latency, combined with the direct satellite-to-ground communication method, has shown great potential in enhancing global communication capabilities and will become an ...
LU Hang, ZHANG Jiaxin, WANG Haixu
doaj  

Astrocytes Coordinate Neurovascular Coupling During Prolonged Sensory Demand via AQP4/TRPA1/BEST1/D‐Serine Signaling

open access: yesAdvanced Science, EarlyView.
Neuronal activation leads to astrocytic transient volume changes, activating transient receptor potential ankyrin 1 (TRPA1) channels, leading to Ca2+ influx. Activation of TRPA1 causes the release of D‐serine through BEST1. Finally, the augmented extracellular levels of D‐serine boost neuronal activity by binding GluN1‐containing NMDARs, leading to CBV
Kayoung Han   +11 more
wiley   +1 more source

Access Analysis of GEO, MEO, & LEO Satellite Systems [PDF]

open access: yes, 2018
The goal of this study is to calculate access duration and intervals for three different kinds of satellite schemes to support a WSN (wireless sensor network). The first scenario involves only LEO-level satellites.
An, Gukyoung   +2 more
core  

Emergence of Unconventional Magnetic Order in Strain‐Engineered RuO2/TiO2 Superlattices

open access: yesAdvanced Science, EarlyView.
Epitaxial strain activates unconventional magnetism in rutile RuO2, absent in bulk or relaxed RuO2. Polarized neutron reflectometry with atomic‐layer resolution directly reveals finite magnetization confined to RuO2 layers in fully strained RuO2/TiO2 superlattices on TiO2 (110).
Seung Gyo Jeong   +12 more
wiley   +1 more source

Dual Randomness From Spatial and Temporal Variations in Stochastic Zinc Gallate Nanoclusters for PUF and TRNG Co‐Driven Image Generation

open access: yesAdvanced Science, EarlyView.
A dual‐randomness hardware platform is demonstrated by integrating PUF and TRNG functionalities into mixed‐ZGO nanoclusters. By leveraging spatial and temporal stochasticity, the mixed‐ZGO NCs device enables both unique identification and random signal generation.
Seungme Kang   +6 more
wiley   +1 more source

Phased Array Antenna Analysis Workflow Applied to Gateways for LEO Satellite Communications. [PDF]

open access: yesSensors (Basel), 2022
Merino-Fernandez I   +3 more
europepmc   +1 more source

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