Results 31 to 40 of about 18,219,725 (307)

Wavy‐Interlocked Stretchable Triboelectric Nanogenerators Enhanced by Liquid Metal Microflowers for Self‐Powered Wearable Motion Monitoring

Advanced Science, EarlyView.
Schematic showing a stretchable triboelectric nanogenerator based on interlocked wavy architectures that uses EGaIn microflower‐embedded PVDF‐TrFE and Nylon‐6 nanofiber membranes. The multi‐petaled, electron‐rich EGaIn microflowers enhance interfacial polarization and capacitance, while the interlocked wavy architecture enlarges the effective contact ...
Qianqian Xu, Huimin Li, Hanmin Zeng, Yahui Meng, Yimeng He, Xinke Hu, Senfeng Zhao, Jianxun Zhang, Peiqiong Zhou, Kechao Zhou, Dou Zhang, Chris Bowen, Yan Zhang   +12 more
wiley   +1 more source

Research on dynamic stiffness match form of indirect fastener based on rail high-frequency wear characteristics

Scientific Reports
The stiffness combination of the dual-layer pads in indirect fastener systems significantly influences high-frequency wheel-rail wear behavior. However, the actual stiffness exhibits strong nonlinearity and non-uniformity due to the deformation of the ...
Xian Wang, Kai Wei, Qianhua Pu, Zelong Liu, Guodong Li, Ping Wang   +5 more
doaj   +1 more source

Study on the strain response characteristics of coal and rock borehole walls under high-pressure gas fracturing

Gong-kuang zidonghua
There has been a lack of precise methods for monitoring and evaluating the entire process of gas fracturing. However, strain monitoring can effectively record the real-time initiation and propagation of cracks. By studying the strain response of borehole
KONG Zixing, MA Yankun, YANG Fade, WANG Xiaoqi, GONG Liqiang, JIANG Mingfeng   +5 more
doaj   +1 more source

Dynamic Response of Wheel-Rail Interaction at Rail Weld in High-Speed Railway

Shock and Vibration, 2017
As a main part of continuously welded rail track, rail weld widely exists in high-speed railway. However, short-wave irregularities can easily initiate and develop in rail weld due to the limitation of welding technology and thus rail weld has been a ...
Boyang An, Ping Wang, Jieling Xiao, Jingmang Xu, Rong Chen   +4 more
doaj   +1 more source

Research related to vibrations from high speed railway traffic [PDF]

, 2008
We discuss here recent results from several research programmes related to dynamic aspects and vibrations induced by high speed railway traffic, developed at the computational mechanics group, within the “Escuela de Ingenieros de Caminos” of the ...
Gabaldón Castillo, Felipe, Goicolea Ruigómez, José María   +1 more
core  

Nonlinear Quantum Effects Drive Grotthuss Proton Conduction in Structured Electrolytes Based on Deep Eutectic Solvents

Advanced Science, EarlyView.
We demonstrate that the inverse relationship between viscosity and conductivity in structured electrolytes can be circumvented by leveraging their hydrogen bonding networks for Grotthuss proton transport. Using a mixture of imidazole and levulinic acid, we show that the existence of extended hydrogen‐bonded chains that can rapidly reorient result in ...
Benworth B. Hansen, Michael S. Chen, Giselle de A. L. e Souza, Kaylie Glynn, Alan Robledo, Emilia Pelegano‐Titmuss, Katherine Hightower, Miguel Muñoz, Rathiesh Pandian, Clemens Burda, Aikaterini Sanida, Mark Dadmun, Burcu E. Gurkan, Steve G. Greenbaum, Mark E. Tuckerman, Joshua R. Sangoro   +15 more
wiley   +1 more source

Terahertz Channel Modeling, Estimation and Localization in RIS‐Assisted Systems

Advanced Electronic Materials, EarlyView.
Reconfigurable intelligent surfaces have become a recent intensive research focus. Based on practical applications, channel strategies for RIS‐assisted terahertz wireless communication systems are categorized into three different types: channel modeling, channel estimation, and channel localization.
Hongjing Wang, Weipeng Wang, Xuan Cong, Shiyu Wang, Gao Li, Sen Gong, Lin Huang, Hongxin Zeng, Yaxin Zhang, Ziqiang Yang   +9 more
wiley   +1 more source

Analysis of Large-slope Metro Turnout Rail Creeping under Cycling Loads Action

Chengshi guidao jiaotong yanjiu
Objective When turnouts are laid on slope, the longitudinal force increase on the track due to the cyclic braking of trains will cause uneven rail creeping phenomena， resulting in a more complex stress and deformation pattern for the turnout, and even ...
WANG Tian, MA Qiantao, ZHENG Zhao-guang, YANG Jian, FANG Jiasheng, CHEN Rong, XU Jingmang   +6 more
doaj   +1 more source

Landslide Deformation Monitoring by Adaptive Distributed Scatterer Interferometric Synthetic Aperture Radar

Remote Sensing, 2019
Landslide is the second most frequent geological disaster after earthquake, which causes a large number of casualties and economic losses every year. China frequently experiences devastating landslides in mountainous areas.
Hongguo Jia, Hao Zhang, Luyao Liu, Guoxiang Liu   +3 more
doaj   +1 more source

Characterizing Biopolymer Electrolytes in Zinc–Air Batteries: Challenges, Best Practices, and a Robust Workflow Guiding Future Research Paths

Advanced Energy Materials, EarlyView.
Bio‐based gel polymer electrolytes promise sustainable, mechanically adaptable zinc–air batteries, yet their progress is constrained by inconsistent characterization. This review critically links formulation, structure, interfaces, and cell performance, identifies methodological gaps under alkaline operating conditions, and proposes application ...
Matteo Milanesi, Hiba Ali, Barbara Belza, Mattia F. Palermo, Claudio Gerbaldi, Giuseppe Antonio Elia, Nagore Ortiz‐Vitoriano   +6 more
wiley   +1 more source