Results 141 to 150 of about 4,468,856 (284)

Enhancing Shadow Fading Mitigation with RIS Using Two-Dimensional Orthogonal Pattern Division Multiple Access. [PDF]

Sensors (Basel)
Yang Z, Yao J, Liu Z, Shi Y, Bai X.
europepmc   +1 more source

Electrolyte–Framework Matching in High‐Voltage TEMPO‐COF Cathodes for Lithium Batteries

Advanced Science, EarlyView.
TEMPO‐functionalized covalent organic frameworks are investigated as high‐voltage cathodes for lithium batteries. Screening five electrolyte anions identifies lithium difluoro(oxalato)borate (LiDFOB) as the optimal electrolyte, balancing capacity, rate capability, and cycling stability, while buckypaper electrodes achieve high mass loading (40 mg cm−2)
Marilyn Esclance DMello, Nagaraj Patil, Fanni Fekecs, Sergio Pinilla, Rebeca Marcilla, Manuel Souto   +5 more
wiley   +1 more source

Domain Adaptation-Based Sorting Method for UAV Swarm Targets on Multi-Station Features. [PDF]

Sensors (Basel)
Zhang X, Zhang M, Sun W, Ji Y, Chen R, Liu T.   +5 more
europepmc   +1 more source

Polarization Dynamics in Ferroelectrics: Insights Enabled by Machine Learning Molecular Dynamics

Advanced Science, EarlyView.
Machine learning molecular dynamics is presented as a route to capture polarization switching, domain wall kinetics, topological polar textures, and polar mechanical coupling beyond the limits of conventional atomistic methods. This Perspective surveys recent progress and identifies key methodological directions, including long‐range electrostatics ...
Dongyu Bai, Ri He, Junxian Liu, Liangzhi Kou   +3 more
wiley   +1 more source

Enabling and Enhancing Massive Multiple Input-Multiple Output Systems with Two-Dimensional Orthogonal Pattern Division Multiple Access. [PDF]

Sensors (Basel)
Wang R, Yao J, Shi Y, Liu Z, Bai X.
europepmc   +1 more source

Performance comparison between differential frequency hopping and fast frequency hopping

, 2013
Differential frequency hopping (DFH) is a frequency-hopping communication system with memory. The minimum sequence error method is proposed as the frequency sequence estimation algorithm.
Guan, Jiajia.
core  

Halide Perovskite: A Rich Source of Thermal Insulator

Advanced Science, EarlyView.
Halide perovskites exhibit ultralow thermal conductivity driven by intrinsic lattice softness and strong anharmonicity, falling below conventional defect‐engineering limits. Weak metavalent bonding, A‐site rattling, and dynamic octahedral tilting drive phonon scattering to the Ioffe–Regel limit, where wave‐like tunneling replaces particle‐like ...
Haolin Ye, Bangzhi Ge, Yuan Yu, Chongjian Zhou   +3 more
wiley   +1 more source

A labeled RF signal dataset for UAV detection and classification in the 2.4GHz band under Wifi and Bluetooth coexistence. [PDF]

Data Brief
Mgannem S, Aloui R, Hamdi B, Mhatli S, Llamas-Garro I.   +4 more
europepmc   +1 more source

Bipolar Palladium Membrane Enabling Crossover‐Free Selective Proton Transport

Advanced Science, EarlyView.
This study introduces a crossover‐free bipolar palladium membrane that transports protons selectively via reversible Pd/PdHx absorption–desorption and lattice hydrogen diffusion, overcoming the conductivity–selectivity trade‐off of polymer membranes. It enables water‐fed Li‐mediated ammonia synthesis, achieving 51% Faradaic efficiency and stable 12 h ...
Jiyeon Baek, Yeongbae Jeon, Seunga Lee, Ahee Choi, Joonmok Shim, Kyungho Lee, Ho Woun Jung, Sun Hyung Kim, Churl Hee Cho, Hyung Chul Yoon, Yun Jeong Hwang, Jae Hyung Kim   +11 more
wiley   +1 more source

SPA-DETR: An Enhanced RT-DETR with Spatial-Preserving Attention and Adaptive Loss for UAV Spectrogram Signal Detection. [PDF]

Sensors (Basel)
Fu C, Xu L, Zhang Y.
europepmc   +1 more source