Results 101 to 110 of about 4,335 (249)

LEO satellite assisted UAV distribution using combinatorial bandit with fairness and budget constraints. [PDF]

PLoS One, 2023
Mohamed EM.
europepmc   +1 more source

Thermally Driven Supramolecular Chirality Evolution in Low‐Bandgap Fused‐Ring Conjugated Molecules for High‐Performance NIR Circularly Polarized Light Detection

Advanced Science, EarlyView.
A supramolecular chirality evolution strategy in chiral low‐bandgap fused‐ring conjugated molecules enables high‐performance near‐infrared (NIR) circularly polarized light photodetection. Halogen substitution and thermal annealing induce chiral amplification and hierarchical ordering. Integrated into Schottky barrier vertical transistors, the optimized
Jaeyong Ahn, Kwangmin Kim, Sangwook Lee, Seul Lee, SungHyun Hur, BongSoo Kim, Joon Hak Oh   +6 more
wiley   +1 more source

Cooperative Downloading for LEO Satellite Networks: A DRL-Based Approach. [PDF]

Sensors (Basel), 2022
Choi H, Pack S.
europepmc   +1 more source

Laser Preset of MnOx Layer on High‐Entropy Alloy Surface for Ampere‐Level Ultra‐Stable OER Performance

Advanced Science, EarlyView.
3D printing enables a high entropy alloy‐derived, in situ formed MnOx overlayer that suppresses oxidation–reconstruction and mitigates anodic dissolution, while enhancing electrolyte wetting and bubble release to accelerate interfacial mass transport and OER kinetics.
Benzhi Wang, Ziyang Duan, Jeong Yeon Heo, Thu Ha Le, Byunggon Song, Sunhyeong Kwon, Ji Hoon Lee, Jonghwan Suhr, Hyung Mo Jeong   +8 more
wiley   +1 more source

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

Sensors (Basel), 2022
Merino-Fernandez I, Khemchandani SL, Del Pino J, Saiz-Perez J.   +3 more
europepmc   +1 more source

Real-time LEO satellite clock estimation with predicted LEO satellite orbits constrained

GPS Solutions
Low Earth Orbit (LEO) satellites can augment the traditional GNSS-based positioning, navigation and timing services, which require real-time high-precision LEO satellite clock products. As the complicated systematic efects contained in the LEO satellite clock estimates limit their high-precision mid- to long-term prediction, high-frequency LEO ...
Wei Xie, Hang Su, Kan Wang, Jiawei Liu, Meifang Wu, Min Zou, Ahmed El-Mowafy, Xuhai Yang   +7 more
openaire   +2 more sources

Néel‐Vector‐Dependent Unconventional Spin‐Orbit Torque for Deterministic Field‐Free Switching in NiO (110)‐Based Trilayers

Advanced Science, EarlyView.
Unconventional spin currents are generated in an antiferromagnetic NiO(110)/Ta/CoFeB trilayer, where the Néel vector governs spin transport. The resulting spin–orbit torques enable deterministic field‐free switching of perpendicular magnetization.
Hyeong‐Joo Seo, Seok‐Jong Kim, Phuoc Cao Van, Hong‐Cuong Truong, Dong‐Hyeon Han, Geunwoo Kim, Younghun Jo, Jong Hoon Jung, Soojung Kim, Chun‐Yeol You, Jong‐Ryul Jeong, Kyung‐Jin Lee, Byong‐Guk Park   +12 more
wiley   +1 more source

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

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  

A New LoRa-like Transceiver Suited for LEO Satellite Communications. [PDF]

Sensors (Basel), 2022
Ben Temim MA, Ferré G, Tajan R.
europepmc   +1 more source

Vanadium Cation Exchange‐Driven Reconstruction of MOF‐Derived Cobalt Hydroxide Electrodes for Electrocatalysis and Energy Storage

Advanced Science, EarlyView.
A room‐temperature vanadium cation exchange strategy is developed to achieve simultaneous structural reconstruction and electronic/defect modulation of ZIF‐67 on nickel foam. The resulting mesoporous V20–Co(OH)2 electrode exhibits superior OER activity with low overpotentials and enhanced lattice oxygen participation.
Yongbeen Kim, Seungwoo Han, Wonyoung Lee
wiley   +1 more source