Results 261 to 270 of about 238,673 (338)

Self‐Reconstruction of Dual‐Morphology Copper‐Iron Selenides for Cost‐Effective Oxygen Evolution Toward Industrial Alkaline Water Splitting

Advanced Functional Materials, EarlyView.
Departing from conventional Ni/Co‐based catalysts, this work presents a Ni/Co‐free CuFe–Se/CFF electrocatalyst with nanoblock–nanorod morphology. It delivers 1000 mA cm−2 at 330 mV overpotential and 620 h stability for the oxygen evolution reaction (OER).
Jiajun Wang, Jianjiang Zhao, Jiajun Zhang, Fei Wang, Tongtong Li, Ruixiang Ren, Yunmin Chen, Hua Wei   +7 more
wiley   +1 more source

Rolling Bearing Fault Diagnosis Based on a Synchrosqueezing Wavelet Transform and a Transfer Residual Convolutional Neural Network. [PDF]

Sensors (Basel)
Zhai Z, Luo L, Chen Y, Zhang X.
europepmc   +1 more source

In Materia Shaping of Randomness with a Standard Complementary Metal‐Oxide‐Semiconductor Transistor for Task‐Adaptive Entropy Generation

Advanced Functional Materials, EarlyView.
This study establishes a materials‐driven framework for entropy generation within standard CMOS technology. By electrically rebalancing gate‐oxide traps and Si‐channel defects in foundry‐fabricated FDSOI transistors, the work realizes in‐materia control of temporal correlation – achieving task adaptive entropy optimization for reinforcement learning ...
Been Kwak, Ryun‐Han Koo, Youngchan Cho, Changhyeon Han, Dongbin Kim, Soi Jeong, Yunho Shin, Joonhyeok Choi, Jiseong Im, Jonghyun Ko, Jong‐Ho Lee, Jangsaeng Kim, Youngho Kang, Wonjun Shin, Daewoong Kwon   +14 more
wiley   +1 more source

Advancing nitrogen nutrition index estimation in summer maize using continuous wavelet transform. [PDF]

Front Plant Sci
Wang M, Zhao B, Jiang N, Li H, Cai J.
europepmc   +1 more source

Engineering Relative Spatial Structure of Dual Atomic Sites with Asymmetric Coordination for High‐Performance Hydrogen Evolution Activity

Advanced Functional Materials, EarlyView.
Dual‐atom catalysts featuring varying spatial configurations of metal sites (Pt1Fe1 DACs) are employed to systematically investigate the influence of spatial arrangements on the electronic structure and catalytic activity of active sites. Notably, the 3D asymmetric Pt1Fe1‐TAC dimer, featuring strong interatomic interactions, demonstrates superior ...
Yi Guan, Xiaozhang Yao, Chuang Xue, Zhongxin Song, Xiangzhong Ren, Tsun‐Kong Sham, Li‐Min Liu, Lei Zhang, Xueliang Sun   +8 more
wiley   +1 more source

Signal Separation Operator Based on Wavelet Transform for Non-Stationary Signal Decomposition. [PDF]

Sensors (Basel)
Han N, Pei Y, Song Z.
europepmc   +1 more source

Observation of Relativistic Domain Wall Motion in Amorphous Ferrimagnets

Advanced Functional Materials, EarlyView.
Domain walls in ferrimagnets and antiferromagnets move as relativistic sine‐Gordon solitons, with the spin‐wave velocity setting their speed limit. Such relativistic domain‐wall motion is demonstrated in amorphous GdFeCo near angular momentum compensation, where current‐driven walls reach 90% of the 2 kms−1 spin‐wave speed, enabling ultrafast, device ...
Pietro Diona, Luca Maranzana, Sergey Artyukhin, Giacomo Sala   +3 more
wiley   +1 more source

A Hybrid Deep Learning Approach for Bearing Fault Diagnosis Using Continuous Wavelet Transform and Attention-Enhanced Spatiotemporal Feature Extraction. [PDF]

Sensors (Basel)
Siddique MF, Saleem F, Umar M, Kim CH, Kim JM.   +4 more
europepmc   +1 more source

Atomic‐Level Dual‐Cation Engineering Enables High‐Performance Na4VMn(PO4)3 Cathodes for Sodium‐Ion Batteries

Advanced Functional Materials, EarlyView.
Dual‐cation site engineering unlocks stable and fast sodium storage in Na4VMn(PO4)3 cathodes. Li+ at Na2 suppresses Jahn‐Teller distortion, while K+ at Na1 expands ion channels, enabling synchronized V/Mn redox and quasi‐single‐phase kinetics. This atomic‐level strategy achieves ultralong cycling stability, high‐rate capability, and full cell viability
Jiaze Sun, Xiaoyu Hu, Xianhe Meng, Nengjun Yu, Qiaoling Kang, Lijing Yan, Meiqiang Fan, Chubin Wan, Tingli Ma   +8 more
wiley   +1 more source

Machine Learning and Wavelet Transform: A Hybrid Approach to Predicting Ammonia Levels in Poultry Farms. [PDF]

Animals (Basel)
Küçüktopçu E, Cemek B, Simsek H.
europepmc   +1 more source