Results 11 to 20 of about 142,351 (318)

A review of zinc-based battery from alkaline to acid

open access: yesMaterials Today Advances, 2021
The demand for electrochemical energy storage devices has spawned a demand for high-performance advanced batteries. From a meaningful performance and cost perspective, zinc-based rechargeable batteries (ZBRBs) have become the most promising secondary ...
N. Wang   +6 more
doaj   +1 more source

The Extended Galerkin Method for Approximate Solutions of Nonlinear Vibration Equations

open access: yesApplied Sciences, 2022
An extension has been made to the popular Galerkin method by integrating the weighted equation of motion over the time of one period of vibrations to eliminate the harmonics from thee deformation function.
Ji Wang, Rongxing Wu
doaj   +1 more source

Piezoelectricity in Polyacrylonitrile [PDF]

open access: yesPolymer Journal, 1984
The piezoelectric and related properties in ion-doped (NH4NO3, NaNO3) and undoped films of polyacrylonitrile have been measured as a function of temperature. The piezoelectric constants of both ion-doped and undoped films reach a maximum around 80°C and thereafter decrease markedly with temperature.
Ueda, H., Carr, S. H.
openaire   +1 more source

Contribution of Cation Addition to MnO2 Nanosheets on Stable Co3O4 Nanowires for Aqueous Zinc-Ion Battery

open access: yesFrontiers in Chemistry, 2020
Zinc-based electrochemistry attracts significant attention for practical energy storage owing to its uniqueness in terms of low cost and high safety. In this work, we propose a 2.0-V high-voltage Zn–MnO2 battery with core@shell Co3O4@MnO2 on carbon cloth
Nengze Wang   +16 more
doaj   +1 more source

A nonlinear analysis of surface acoustic waves in isotropic elastic solids

open access: yesTheoretical and Applied Mechanics Letters, 2022
With the fast evolution of wireless and networking communication technology, applications of surface acoustic wave (SAW), or Rayleigh wave, resonators are proliferating with fast shrinking sizes and increasing frequencies.
Haoxiang Wu   +5 more
doaj   +1 more source

Single-Layer ZnO Hollow Hemispheres Enable High-Performance Self-Powered Perovskite Photodetector for Optical Communication

open access: yesNano-Micro Letters, 2021
The carrier transport layer with reflection reduction morphology has attracted extensive attention for improving the utilization of light. Herein, we introduced single-layer hollow ZnO hemisphere arrays (ZHAs) behaving light trapping effect as the ...
Xiyan Pan   +9 more
doaj   +1 more source

Remarkable Ionic Conductivity in a LZO-SDC Composite for Low-Temperature Solid Oxide Fuel Cells

open access: yesNanomaterials, 2021
Recently, appreciable ionic conduction has been frequently observed in multifunctional semiconductors, pointing out an unconventional way to develop electrolytes for solid oxide fuel cells (SOFCs).
Zhengwen Tu   +9 more
doaj   +1 more source

The Approximate Solution of Nonlinear Flexure of a Cantilever Beam with the Galerkin Method

open access: yesApplied Sciences, 2022
For the optimal design and accurate prediction of structural behavior, the nonlinear analysis of large deformation of elastic beams has broad applications in various engineering fields. In this study, the nonlinear equation of flexure of an elastic beam,
Jun Zhang   +4 more
doaj   +1 more source

Control of a multi-degree of freedom worktool for vibrations assisted forging [PDF]

open access: yes, 2014
This paper addresses the control of a tool developed to superimpose vibrations along several directions on a piece during forging. Piezoelectric actuators are used to provide the required forces and speeds.
AMBERG, Michel   +12 more
core   +1 more source

Performance of piezoelectric shunts for vibration reduction [PDF]

open access: yes, 2012
This work addresses passive reduction of structural vibration by means of shunted piezoelectric patches. The two classical resistive and resonant shunt solutions are considered.
DUCARNE, Julien   +2 more
core   +1 more source

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