Results 41 to 50 of about 16,813,404 (391)

A Pavement Piezoelectric Energy Harvester for Small Input Displacements

Micromachines, 2023
In order to collect mechanical energy from human motions on pavement without an obvious disturbance, a piezoelectric harvester for small displacement is proposed. A seesaw mechanism is utilized to transmit the pressure displacement to piezoelectric beams.
Bin Yin, Jiaming Wei, Xin Jiang, Yan Liu
doaj   +1 more source

Topological Electronic Structure and Its Temperature Evolution in Antiferromagnetic Topological Insulator MnBi2Te4 [PDF]

Physical Review X, 2019
The intrinsic magnetic topological insulator MnBi2Te4 exhibits rich topological effects such as quantum anomalous Hall effect and axion electrodynamics.
Yujie Chen, Lixuan Xu, Lixuan Xu, Jiaheng Li, Yiwei Li, Hongyuan Wang, Hongyuan Wang, Chaofan Zhang, Hao Li, Yang Wu, A. Liang, A. Liang, Cheng Chen, Cheng Chen, S. Jung, C. Cacho, Y. Mao, Shuai Liu, Meixiao Wang, Yanfeng Guo, Yong Xu, Yong Xu, Zhongkai Liu, Lexian Yang, Yulin Chen, Yulin Chen, Yulin Chen   +26 more
semanticscholar   +1 more source

Electronic Structure of TmPdIn

Acta Physica Polonica A, 2016
Electronic structure of a ternary TmPdIn compound, which crystallizes in the hexagonal ZrNiAl-type structure, was studied by X-ray photoemission spectroscopy and ultraviolet photoemission spectroscopy. Density of states in the valence band was calculated by means of the augmented plane wave/local orbital method based on density functional theory.
Penc, B., Kurleto, R., Goraus, Jerzy, Starowicz, P., Szytuła, A.   +4 more
openaire   +5 more sources

Photoacoustic imaging reveals hidden underdrawings in paintings

Scientific Reports, 2017
A novel, non-invasive, imaging methodology, based on the photoacoustic effect, is introduced in the context of artwork diagnostics with emphasis on the uncovering of hidden features such as underdrawings or original sketch lines in paintings ...
George J. Tserevelakis, Ilianna Vrouvaki, Panagiotis Siozos, Krystallia Melessanaki, Kostas Hatzigiannakis, Costas Fotakis, Giannis Zacharakis   +6 more
doaj   +1 more source

Surrogate-Model-Based Interval Analysis of Spherical Conformal Array Antenna with Power Pattern Tolerance

Sensors, 2022
A method based on an interval arithmetic is proposed to analyze uncertain factors such as the curvature radii, excitation amplitude, and excitation phase of a spherical conformal array antenna.
Guangda Ding, Peng Li, Paolo Rocca, Jiantao Chang, Wanye Xu   +4 more
doaj   +1 more source

Electronic structure of silicon-based nanostructures [PDF]

, 2007
We have developed an unifying tight-binding Hamiltonian that can account for the electronic properties of recently proposed Si-based nanostructures, namely, Si graphene-like sheets and Si nanotubes.
Gian G. Guzmán-Verri, J. Zhang, L. C. Lew Yan Voon, M. Dresselhaus, R. Saito, S. Reich   +5 more
core   +2 more sources

A Large-Scale Sensor Layout Optimization Algorithm for Improving the Accuracy of Inverse Finite Element Method

Sensors, 2023
The inverse finite element method (iFEM) based on fiber grating sensors has been demonstrated as a shape sensing method for health monitoring of large and complex engineering structures.
Zhenyi Zhao, Kangyu Chen, Yimin Liu, Hong Bao   +3 more
doaj   +1 more source

A Novel Inversion Method of Manufacturing Flaws in the Packaging of Conformal Load-Bearing Antenna Structure

International Journal of Antennas and Propagation, 2015
Composite material is widely used in the conformal load-bearing antenna structure (CLAS), and the manufacturing flaws in the packaging process of the CLAS will lead to the degradation of its wave-transparent property.
P. Li, W. Y. Xu, L. W. Song, Y. Y. Qiu
doaj   +1 more source

Effect of Ground Plane Deformation on Electrical Performance of Air Microstrip Antennas

International Journal of Antennas and Propagation, 2020
This paper covers the variation of electrical performance of air microstrip antennas due to its ground plane deformation. A typical sinusoidal function is utilized to characterize the shape of deformation, based on which different shapes of ground plane ...
Wei Wang, Yanjun Wang, Shunxi Lou, Shuo Zhang, Yatian Zhou   +4 more
doaj   +1 more source

Improved Adaptive Multi-Objective Particle Swarm Optimization of Sensor Layout for Shape Sensing with Inverse Finite Element Method

Sensors, 2022
The inverse finite element method (iFEM) is one of the most effective deformation reconstruction techniques for shape sensing, which is widely applied in structural health monitoring. The distribution of strain sensors affects the reconstruction accuracy
Xiaohan Li, Shengtao Niu, Hong Bao, Naigang Hu   +3 more
doaj   +1 more source