Results 51 to 60 of about 10,612 (301)
Advanced Materials Interfaces, EarlyView.ABSTRACT This study demonstrates that weak magnetic fields (16–40 mT) increase the efficiency of the hydrogen evolution reaction (HER) in electrocatalysts based on non‐fullerene acceptor (NFA) derivatives IT‐4Cl and Y6. Electrochemical measurements reveal that the application of the magnetic field reduces the onset potential and increases the current ...
João Paulo Araujo Souza +7 more
wiley +1 more source
Jixie chuandong, 2020 In order to analyze the cause and influence factors of the torsional vibration of the dual mode multistage gear transmission， a hybrid electric vehicle dynamic model is established based on SIMPACK.
Xiaoci Huang
doaj
The effect of laminate lay-up on the flutter speed of composite wings. [PDF]
, 2003 This paper presents an analytical study on optimization of a laminated composite wing structure for achieving a maximum flutter speed and a minimum weight without strength penalty.
Guo, Shijun J. +2 more
core +1 more source
Advanced Design for Weakly Coupled Resonators by Automatic Active Optimization
Advanced Materials Technologies, EarlyView.An Automatic Active Optimization (AAO) strategy integrates machine learning predictors and genetic algorithms in a closed‐loop workflow. By iteratively expanding its dataset with new discoveries, AAO overcomes the limits of conventional methods. This approach finds superior microstructural designs beyond the initial sample space. We demonstrate this on
Wei Yue +8 more
wiley +1 more source
Analysis of Torsional Vibration Characteristic for the Crown Gear Coupling of EMU
Jixie chuandong, 2017 The torsional vibration should be serious considered in the product design of the crown gear coupling of EMU. According to the structural characteristics and operating conditions of the crown gear coupling of EMU,the torsional vibration system mechanical
Shi Zhenqiang +4 more
doaj
Calibration of the torsional and lateral spring constants of cantilever sensors
, 2014 Financial support from the EPSRC (EP/K000411/1) and the University of St. Andrews under an Impact Acceleration Account (EP/K503940/1) are gratefully acknowledged.A method suitable for the calibration of the spring constants of all torsional and lateral ...
Hähner, Georg, Parkin, John David
core +1 more source
Advanced Materials Technologies, EarlyView.Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu +8 more
wiley +1 more source
Phase Demodulation of Rotor Torsional Vibration Measurement under Time-Varying Speed
Shock and Vibration, 2022 When torsional vibration is measured with the zebra-tape method, the modulation signals can be contaminated by electrical noise, environmental noise, step noise, sensor nonlinearities, and so on.
Moli Chen +4 more
doaj +1 more source
Advanced Materials Technologies, EarlyView.Multi‐million cycle reliability for liquid metal stretchable electronics is achieved through a continuous cycle of mechanical testing, failure mode and mechanism analysis and implementing subsequent mitigation strategies. ABSTRACT Stretchable electronics that combine mechanical compliance with reliable electrical performance are essential for ...
Lennert Purnal +8 more
wiley +1 more source
Trapped torsional vibrations in elastic plates [PDF]
Applied Physics Letters, 2005 We report observation and analysis of trapped torsional vibrations in elastic plates. Each trapping element consists of a circular mesa machined in cast aluminum plate, with an electromagnetic acoustic transducer used to generate oscillatory surface traction. Suitably applied traction induced torsional vibrations trapped in the mesa.
Min Kang, Rui Huang, Terence Knowles
openaire +1 more source