Results 131 to 140 of about 68,626 (291)
Hybrid Selection/MRC for DVB-S2/RCS in land mobile satellite scenarios
, 2007 In this paper, we propose a multi-antenna technique to improve the link reliability of a satellite communications system. More specifically, we consider a railway scenario where performance is considerably affected by periodic fading associated with ...
Vicario, J. L. +5 more
core
Markov approximation for multilayered selection in satellite network [PDF]
Journal of Communications and Information Networks, 2016 Yiqing Li +5 more
openaire +1 more source
Solution‐Processed Thin‐Film Transistors With Tunable Temporal Dynamics for Neuromorphic Computing
Advanced Functional Materials, EarlyView.Solution‐processed CNT and CNT/P3HT ion‐gated transistors exhibit materials‐defined synaptic timescales: fast CNT devices for high‐frequency spiking and slow hybrid devices for temporal integration. Embedding these dynamics into coupled reservoir‐computing and spiking neural network simulations reveals that a Hybrid‐Reservoir / CNT‐SNN architecture ...
Kevin Schnittker +5 more
wiley +1 more source
Approaching Movement-Aware Satellite Selection Method for Low-Earth-Orbit Satellite Networks [PDF]
In recent years, Low-Earth-Orbit (LEO) satellite networks, such as Starlink, have been advancing rapidly. However, it has been shown that Starlink may experience frequent variations in link quality due to handovers and other factors.
Kashiwagi, Keita +6 more
core
, 2014 Narrow spotbeam scheduling and interbeam interference management can make the advanced multibeam satellite equipped with phased array antenna more effective to serve a large number of users over its coverage area.
Choi, Ji-Woong +7 more
core +1 more source
Ultrasmall High‐Entropy Materials: Nanoscale Effects, Synthesis, and Mechanistic Insights
Advanced Functional Materials, EarlyView.This review article focuses on sub‐10 nm high‐entropy materials that combine nanoscale design with complex compositions for next‐generation applications. ABSTRACT Ultrasmall high‐entropy nanomaterials (USHENMs, <10 nm) merge multicomponent chemistry with size‐dependent effects, forming a distinct class of materials with unprecedented properties.
Yueyue He +5 more
wiley +1 more source
Advanced Functional Materials, EarlyView.A sulfur‐doped Ni–Co heterostructured catalyst is rationally designed to regulate interfacial electronic and adsorption properties for selective glycerol electrooxidation. The synergistic Ni–Co active sites promote hydroxide activation and glycerol adsorption, enabling efficient formic acid production and durable hydrogen generation under continuous ...
Lingqin Shen +4 more
wiley +1 more source
Optimal satellite selection for satellite navigation systems
, 2013 Práce se zabývá problémem odhadu polohy pomocí globálních družicových polohových systémů se zaměřením na problém výběru vhodných družic za účelem redukce výpočetní náročnosti samotného výpočtu polohy.
Přinda, Tomáš
core
Advanced Functional Materials, EarlyView.Solvent vapor annealing enables kinetic control of additive‐free morphology in organic solar cells. Selective plasticization of acceptor forms an optimal fibrillar network, boosting efficiency to 19.06% (binary) and 19.75% (ternary), with ultrafast exciton dissociation and reduced recombination.
Jie Lv +20 more
wiley +1 more source
Advanced Functional Materials, EarlyView.Blue phosphorescent OLEDs remain limited by poor operational stability. Here, a unified analytical framework integrating transient photoluminescence and magneto‐electroluminescence is developed to correlate intrinsic material photophysics with electrically driven degradation.
Hakjun Lee, Bum June Park, Taekyung Kim
wiley +1 more source