Results 91 to 100 of about 31,292 (255)

Self‐Powered Flexible Triboelectric‐Gated Ion‐Gel Transistor for Neuromorphic Tactile Sensing and Human Activity Recognition

Advanced Materials, EarlyView.
A fully flexible ion‐gel‐gated graphene‐channel transistor driven by a triboelectric nanogenerator enables self‐powered tactile sensing and synaptic learning. Mimicking spike‐rate‐dependent plasticity, the device exhibits frequency‐selective potentiation and depression, supporting rate‐coded neuromorphic computation even under flex.
Hanseong Cho, Seoyeon Park, Youngmin Lee, Sejoon Lee   +3 more
wiley   +1 more source

Grain boundary oxidation and fatigue crack growth at elevated temperatures [PDF]

Fatigue crack growth rate at elevated temperatures can be accelerated by grain boundary oxidation. Grain boundary oxidation kinetics and the statistical distribution of grain boundary oxide penetration depth were studied.
Liu, H. W., Oshida, Y.
core   +1 more source

Stress-driven crystallization via shear-diffusion transformations in a metallic glass at very low temperatures [PDF]

, 2015
At elevated temperatures, glasses crystallize via thermally activated diffusion. However, metallic glasses can also undergo deformation-induced crystallization at very low temperatures.
Li, Ju, Lo, Yu-Chieh, Ma, Evan, Mao, Yunwei, Qian, Xiaofeng   +4 more
core   +1 more source

2D Nanomaterials Toward Function‐Ready Superlubricity in Advanced Microsystems

Advanced Materials, EarlyView.
A unified framework links structural and transformation superlubricity with microsystem functions and deployment requirements. Mechanisms, device architectures, integration strategies, AI‐guided discovery, and benchmarking protocols are connected to define function‐ready superlubricity in advanced microsystems.
Yushan Geng, Jun Yang, Yong Yang
wiley   +1 more source

Effects of acute fatigue on the volitional and magnetically-evoked electromechanical delay of the knee flexors in males and females [PDF]

, 2007
Neuromuscular performance capabilities, including those measured by evoked responses, may be adversely affected by fatigue; however, the capability of the neuromuscular system to initiate muscle force rapidly under these circumstances is yet to be ...
AJ McComas, AYF Chan, BD Beynnon, BR Mandelbaum, C Minshull, Claire Minshull, D Chu, David Rees, DE Rassier, E Arendt, EM Wojtys, FH Fu, H Johansson, I Tsuji, I Vivodtzev, J Gray, JT Hopkins, K Sahlin, LJ Huston, M Solomonow, M Solomonow, MA Moore, MI Polkey, Michelle Walters-Edwards, MJ Ireland, ML Latash, Nigel Gleeson, NP Gleeson, NP Gleeson, NP Gleeson, P Sbriccoli, PR Cavanagh, PV Komi, RM Norman, Roger Eston, S Zhou, S Zhou, S Zhou, S Zhou, SJ Shultz, T Horita, TH Mercer, V Strojnik   +42 more
core   +1 more source

Recent Advances in Electrospun Nanofibers for Triboelectric Nanogenerators: Performance Enhancement Strategies and Emerging Applications

Advanced Materials, EarlyView.
This review highlights recent advances in electrospun nanofiber‐based triboelectric nanogenerators, emphasizing how material design, fiber architecture, and interface engineering collectively enhance output performance and mechanical durability. Key developments in porous, aligned, core‐shell, and hierarchical nanofibers are discussed alongside ...
MD Fajla Rabbi, Jee Hwan Ahn, Duy Linh Vu, Kyoung Kwan Ahn   +3 more
wiley   +1 more source

Combining Hypoxia and Bioreactor Hydrodynamics Boosts Induced Pluripotent Stem Cell Differentiation Towards Cardiomyocytes [PDF]

, 2014
Cardiomyocytes (CMs) derived from induced pluripotent stem cells (iPSCs) hold great promise for patient-specific disease modeling, drug screening and cell therapy. However, existing protocols for CM differentiation of iPSCs besides being highly dependent
Catarina Brito, Cláudia Correia, Jürgen Hescheler, Karsten Burkert, Manuel J. T. Carrondo, Marcos Sousa, Margarida Serra, Nuno Espinha, Paula M. Alves, Tomo Šarić, Yunjie Zheng   +10 more
core   +1 more source

Elephant‐Skin‐Inspired Porous Cementitious Tiles with Programmable Crack Networks for Passive Cooling

Advanced Materials, EarlyView.
Elephant‐skin‐inspired crack networks are programmed in porous diatomaceous earth (DE)‐cement composites using substrate‐guided, stress‐concentration induced fracture. The resulting crack lattices act as capillary conduits that redistribute water, while the porous matrix stores moisture.
Qingya Huang, Kun‐Hao Yu, Ji Yoon Bae, Yunchan Lee, Dorit Aviv, Shu Yang   +5 more
wiley   +1 more source

Cyclic Fatigue Crack Growth In PZT Piezoelectric Ceramics Induced By Mechanical Load [PDF]

, 2004
In this work the crack propagation behaviour of a commercially obtained lead zirconate titanate (PZT) piezoceramic is studied under monotonic and cyclic loading.
Hoffman, Mark, Roedel, Juergen, Salz, Chris, Westram, Ilona   +3 more
core  

Activating a Metallization Switch for Record Hydrogen Evolution in Single‐Atom Modified Polar MOF Piezocatalysts

Advanced Materials, EarlyView.
ABSTRACT Piezocatalytic hydrogen evolution enables the conversion of mechanical energy into chemical fuels, but its efficiency is constrained by a trade‐off between piezoelectric polarization and electronic conductivity. Strong piezoelectric polarization is essential for sufficient driving force, yet highly polar materials typically suffer from poor ...
Chongyan Hao, Xinwei Guan, Yang Wu, Lingfeng Zhu, Yiwen Mai, Thomas Frauenheim, Zhenping Fu, Yalin Lu, Shidong Wang, Hanxing Liu, Hua Hao, Shujun Zhang, Zhenxiang Cheng, Xiaoning Li   +13 more
wiley   +1 more source