Results 241 to 250 of about 419,452 (304)

Pyrolysis‐Free Formed Cooperative Coupling Pt‐Co Dual‐Functional Sites for Saline Electrolysis with High Adaptability

Advanced Science, EarlyView.
Through a mild pyrolysis‐free route, cooperative coupling of single cobalt atoms (CoSA) and fully exposed platinum nanoclusters (PtNC) is assembled. As expected, the as‐prepared catalysts PtNC/CPF‐Co exhibit dual‐functional performance and high adaptability, demonstrating low overpotentials of 44 mV for HER and 340 mV for OER at 10 mA cm−2 in saline ...
Jianyue Yan, Wen‐Yan Li, Zhao‐Di Wang, Jian‐Hua Qin, Peng Peng, Shuang‐Quan Zang   +5 more
wiley   +1 more source

Bio‐Inspired Stored Magnetic Energy Actuator with Transient Triggering and Programmable Logic

Advanced Science, EarlyView.
A bio‐inspired magnetic energy actuator achieves 1.6 m/s transient release—three orders faster than conventional systems—via direct ink writing printed NdFeB/Polydimethylsiloxane composites and environmental locks; biomimetic AND‐gate logic enables sequential cue recognition (e.g., “temperature → rainfall”).
Chao Xu, Shuo Jiang, Lu Zhang, Xueli Zhou, Qingping Liu, Luquan Ren   +5 more
wiley   +1 more source

Wearable and Implantable Devices for Continuous Monitoring of Muscle Physiological Activity: A Review

Advanced Science, EarlyView.
Recent advances in materials and device engineering enable continuous, real‐time monitoring of muscle activity via wearable and implantable systems. This review critically summarizes emerging technologies for tracking electrophysiological, biomechanical, and oxygenation signals, outlines fundamental principles, and highlights key challenges and ...
Zhengwei Liao, Ata Golparvar, Mohammad Javad Bathaei, Filipe Arroyo Cardoso, Clementine M. Boutry   +4 more
wiley   +1 more source

A Three‐Phase Electrostatic Clutch with Variable Mechanical Impedance Control for Soft Robotic Systems

Advanced Science, EarlyView.
The research introduces a three‐phase electrostatic (ES) clutch with variable mechanical impedance control, specifically designed to enable continuous and precise friction modulation, thereby reducing both force degradation and oscillatory motion. This method effectively resolves conventional ES clutch issues, such as residual charge accumulation and ...
Dongyoung Lee, Heejin Yu, Joonbum Bae
wiley   +1 more source

Ultrafast Photoexcitation Induced Nonthermal Lattice Expansion in 2D Perovskite

Advanced Science, EarlyView.
Photo‐induced lattice expansion in 2D Dion‐Jacobson (DJ) perovskites is a non‐thermal process, resulting in the more relaxed local lattice strain and the larger bandgap. It activates a self‐passivation mechanism, effectively diminishing trap state density. The synergy of these effects leads to suppressed non‐radiative recombination and prolonged charge
Xiangyu Chen, Jiakang Zhou, Yunfan Yue, Zhongle Zeng, Xuewen Wang   +4 more
wiley   +1 more source

Order–Disorder Phase Stabilization by Pressure‐Induced Charge Transfer Enhances the Ferroelectric Photovoltaic Effect in Multiferroic BaFe4O7

Advanced Science, EarlyView.
A pressure‐driven charge transfer in multiferroic BaFe4O7 induces Fe valence disproportionation and structural distortion, drastically narrowing the bandgap and enhancing ferroelectric polarization. This synergistic optimization boosts photocurrent 2.5‐fold and is retained upon decompression, offering a promising strategy to overcome the ferroelectric ...
Jiayi Guan, Bihan Wang, Nana Li, Shang Peng, Ganghua Zhang, Limin Yan, Xuqiang Liu, Kai Zhang, Mingtao Li, Adama N‐Diaye, Qingyu Kong, Dongzhou Zhang, Xu Zhao, Ting Liu, Kejun Bu, Yuhong Mao, Gui Wang, Xujie Lü, Xiang Li, Tao Zeng, Wenge Yang   +20 more
wiley   +1 more source

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Distal Radioulnar Joint Instability

Hand Clinics, 2021
Instability of the distal radioulnar joint is a source of ulnar-sided wrist pain and functional impairment. Symptomatic instability may present acutely, after a recent traumatic injury, or in a delayed fashion as chronic instability following a history of a traumatic event.
Brandon Boyd, Julie E. Adams
openaire   +3 more sources

Subtalar joint instability

European Journal of Trauma and Emergency Surgery, 2015
Subtalar joint instability may frequently be overlooked and erroneously be integrated under the diagnosis of ankle joint instability. It was the scope of this review to characterize the present state-of-art with regard to the adequate diagnosis and treatment.While the clinical picture is mostly inconclusive for subtalar joint instability, a high degree
Alice Wichelhaus, Thomas Mittlmeier
openaire   +3 more sources

Instability of the Proximal Tibiofibular Joint

Journal of the American Academy of Orthopaedic Surgeons, 2003
Injury to the proximal tibiofibular joint is typically seen in athletes whose sports require violent twisting motions of the flexed knee. Instability of this joint may be in the anterolateral, posteromedial, or superior directions. With acute injury, patients usually complain of pain and a prominence in the lateral aspect of the knee.
John E. Kuhn, Jon K. Sekiya
openaire   +2 more sources

Classification of Glenohumeral Joint Instability

Clinical Orthopaedics and Related Research, 2002
Shoulder instabilities have been classified according to the etiology, the direction of instability, or on combinations thereof. The current authors describe a classification system, which distinguishes between static instabilities, dynamic instabilities, and voluntary dislocation.
Christian Gerber, Richard W. Nyffeler
openaire   +3 more sources