Results 101 to 110 of about 5,343,982 (289)
A Novel Analytical Model for LEO and MEO Satellite Networks based on Cox Point Processes
International audienceThis work develops an analytical framework for downlink low Earth orbit (LEO) or medium Earth orbit (MEO) satellite communications, leveraging tools from stochastic geometry.
Baccelli, François, Choi, Chang-Sik
core +1 more source
Advanced 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
Advanced 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
Advanced Science, EarlyView.GeSbSe selector‐only memory devices are investigated through physical and electrical analyses to reveal opposite trap‐state evolution pathways governing reliability degradation. Endurance cycling drives Se migration, transitioning traps from deep to shallow states.
Byung Jun Lee +3 more
wiley +1 more source
Research on Architecture of LEO Satellite Internet of Things and Key Technologies
天地一体化信息网络, 2021 First, we analyzed the composition and demand characteristics of LEO satellite IoTs, and designed an architecture of LEO satellite IoTs.Second, to extracted characteristics of electromagnetic environment and channel, we studied electromagnetic ...
Xiaojin DING +4 more
doaj
Evaluating the Dependability of a LEO Satellite Network for Scientific Applications
, 2005 Dependability is an important issue in LEO satellite networks. In this paper, we study the dependability of a proposed LEO satellite network for scientific data collection based on the Illinois Observing Nanosatellite (ION).
William H. S +5 more
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Advanced Science, EarlyView.Genome‐wide CRISPRi and RNA‐seq resolve how B. thetaiotaomicron converts host mucosal glycans into fitness. The study reveals a layered mucin‐utilization architecture in which capsular polysaccharides constrain surface access, extracellular CAZymes and peptidases show functional redundancy, and intracellular catabolic pathways create discrete metabolic
Kangsan Kim +5 more
wiley +1 more source
Network Simulation of Low Earth Orbit Satellite Communication System Based on SNS3
天地一体化信息网络On the basis of SNS3, by constructing an accurate satellite orbit model, physical layer link model and network protocol model, an antenna model suitable for LEO satellite communication system was proposed and designed, and a network simulation platform ...
WU Fengwei +3 more
doaj
Distributed Routing Strategy Based on Machine Learning for LEO Satellite Network
, 2018 As the indispensable supplement of terrestrial communications, Low Earth Orbit (LEO) satellite network is the crucial part in future space-terrestrial integrated networks because of its unique advantages.
Zhenyu Na +5 more
core +1 more source
Advanced Science, EarlyView.A charge‐transfer‐engineered Ni catalyst derived from an atomically mixed layered precursor enables efficient ammonia‐to‐hydrogen conversion. Cr‐to‐Ni electron transfer creates electron‐rich Ni active sites that favor NH3 adsorption, modify the dehydrogenation energetics, and weaken N2 binding to facilitate product desorption. This electronically tuned
Donghyeok Kim +9 more
wiley +1 more source