Results 121 to 130 of about 302,242 (373)
Advanced Materials Technologies, EarlyView.Development of processing window for the continuous manufacturing of flexible and anisotropic piezoresistive films using magnetic‐field assisted alignment of Ni particles on a roll‐to‐roll processing line. Abstract Flexible pressure sensors are highly sought after for applications like rehabilitation healthcare, advanced wearable electronics ...
Nagarpita Moka Vidyanag +3 more
wiley +1 more source
Material measurement method based on femtosecond laser plasma shock wave
Photonic Sensors, 2016 The acoustic emission signal of laser plasma shock wave, which comes into being when femtosecond laser ablates pure Cu, Fe, and Al target material, has been detected by using the fiber Fabry-Perot (F-P) acoustic emission sensing probe.
Dong Zhong, Zhongming Li
doaj +1 more source
Decoherence in quantum dots due to real and virtual transitions: a non-perturbative calculation
, 2009 We investigate theoretically acoustic phonon induced decoherence in quantum dots. We calculate the dephasing of fundamental (interband or intraband) optical transitions due to real and virtual transitions with higher energy levels.
C. Cohen-Tannoudji +3 more
core +1 more source
Acoustic Transmitters for Underwater Neutrino Telescopes [PDF]
arXiv, 2012 In this paper acoustic transmitters that were developed for use in underwater neutrino telescopes are presented. Firstly, an acoustic transceiver has been developed as part of the acoustic positioning system of neutrino telescopes. These infrastructures are not completely rigid and require a positioning system in order to monitor the position of the ...
arxiv
Transforming Room Acoustics with Causality‐Driven Dual‐Function Passive Metamaterials
Advanced Materials Technologies, EarlyView.This work presents an dual acoustic metamaterial for rooms that achieves excellent broadband performance for both sound absorption and sound diffusion. This is done by using causality formulations linking the absorption of the passive system to its volume, yielding an optimal surface area ratio required for excellent sound absorption and while ...
Eric Ballestero +5 more
wiley +1 more source
Pulse analysis of acoustic emission signals [PDF]
A method for the signature analysis of pulses in the frequency domain and the time domain is presented. Fourier spectrum, Fourier transfer function, shock spectrum and shock spectrum ratio were examined in the frequency domain analysis and pulse shape ...
Houghton, J. R., Packman, P. F.
core +4 more sources
Damage quantification techniques in acoustic emission monitoring [PDF]
, 2011 Acoustic emission (AE) analysis is one of the several diagnostic techniques available nowadays for structural health monitoring (SHM) of engineering structures.
Chan, Tommy H.T. +3 more
core +1 more source
Hybrid Electroluminescence Device for On‐Demand Single Photon Generation at Room Temperature
Advanced Optical Materials, EarlyView.New type of electroluminescent device based on hBN nanocrystals deposited on a GaN laser diode displays electrically driven emission of single photons at room temperature. Low g2(0) autocorrelation function values are achieved of < 0.2 for continuous driving and < 0.4 for on‐demand single‐photon emission.
Aleksander Rodek +8 more
wiley +1 more source
Some Aspects of Acoustic Shock Emission of High-Speed Nozzles [PDF]
, 1969 Abraham C. Peter
openalex +1 more source
Can acoustic emission detect the initiation of fatigue cracks: Application to high-strength light alloys used in aeronautics [PDF]
Acoustic emission was used for the detection of fatigue cracking in a number of high-strength light alloys used in aeronautical structures. Among the features studied were: the influence of emission frequency, the effect of surface oxidation, and the ...
Bathias, C., Brinet, B., Sertour, G.
core +1 more source