Results 61 to 70 of about 302,242 (373)

Research of Intelligent Acoustic Emission Instrument

open access: yesGong-kuang zidonghua, 2011
In view of problems that current acoustic emission instruments have only collection function of acoustic emission data, but no function of data processing and analysis, the paper proposed a design scheme of an intelligent acoustic emission instrument ...
YUAN Chen   +5 more
doaj  

Acoustic emission study of fatigue crack propagation in Q345R

open access: yes工程科学学报, 2015
The acoustic emission signals of fatigue crack propagation in Q345R,which is the typical representative of common steel for pressure vessels,were investigated in detail to construct a relationship between fatigue and acoustic emission.
CHAI Meng-yu, DUAN Quan, ZHANG Zao-xiao
doaj   +1 more source

Acoustic Emission from crumpling paper

open access: yes, 1995
From magnetic systems to the crust of the earth, many physical systems that exibit a multiplicty of metastable states emit pulses with a broad power law distribution in energy.
A. Amengual   +24 more
core   +1 more source

High Thermoelectric Performance in Low‐Cost Cu8SiSxSe6‐x Argyrodite

open access: yesAdvanced Functional Materials, EarlyView.
This study discovers the great potential of Cu8SiSxSe6‐x argyrodites as new, low‐cost, Te‐free thermoelectric materials. The proposed defect scheme suppresses the phase transition, enhances the weighted mobility and optimizes the grain boundary contacts.
Taras Parashchuk   +7 more
wiley   +1 more source

Sound and light from fractures in scintillators

open access: yes, 2013
Prompted by intriguing events observed in certain particle-physics searches for rare events, we study light and acoustic emission simultaneously in some inorganic scintillators subject to mechanical stress.
Ciliberto, S.   +9 more
core   +2 more sources

Acoustic emission and released seismic energy [PDF]

open access: yesNatural Hazards and Earth System Sciences, 2005
Abstract. Intense crises of crustal stress appear to cross large regions, and to precede by several months the eventual occurrence of some strong earthquake within them. The phenomenon is not linear, and the stress control reflects some wide scale-size rather than local effects.
Gregori, G. P.   +3 more
openaire   +8 more sources

Living Microalgae‐Based Magnetic Microrobots for Calcium Overload and Photodynamic Synergetic Cancer Therapy

open access: yesAdvanced Healthcare Materials, EarlyView.
A magnetic microrobot fabricated by Spirulina platensis is proposed to accumulate in tumor regions and generate in situ high calcium concentration and sufficient oxygen. These characteristics of the microrobot present a strategy for triggering calcium overload therapy and chlorophyll‐mediated photodynamic therapy, and such combination resulted in a ...
Shuai Jiang   +12 more
wiley   +1 more source

RESEARCH ON CBN GRINDING WHEEL PERFORMANCE MONITORING METHOD BASED ON SHANNON ENTROPY AND ACOUSTIC EMISSION SIGNAL (MT)

open access: yesJixie qiangdu, 2023
In order to effectively evaluate the grinding performance of CBN(Cubic Boron Nitride) grinding wheel in the grinding process, a monitoring method of CBN grinding wheel performance was proposed based on Shannon entropy theory and acoustic emission signal.
TAN YongMin   +3 more
doaj  

Avalanches and force drops in displacement-driven compression of porous glasses [PDF]

open access: yesPhysical Review E, 94 033005 (2016), 2016
Similarities between force-driven compression experiments of porous materials and earthquakes have been recently proposed. In this manuscript, we measure the acoustic emission during displacement-driven compression of a porous glass. The energy of acoustic-emission events shows that the failure process exhibits avalanche scale-invariance and therefore ...
arxiv   +1 more source

Enhancing Ultrasound Power Transfer: Efficiency, Acoustics, and Future Directions

open access: yesAdvanced Materials, EarlyView.
Implantable devices significantly enhance healthcare but are limited by battery life. Ultrasound power transfer technology offers a promising solution for sustainable operation. This review addresses gaps in current research, particularly in sound field analysis and energy efficiency optimization.
Yi Zheng   +6 more
wiley   +1 more source

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