Results 31 to 40 of about 213,770 (341)

Enhanced Acoustic Emission in Relation to the Acoustic Halo Surrounding Active Region 11429

open access: yes, 2015
The use of acoustic holography in the high-frequency $p$-mode spectrum can resolve the source distributions of enhanced acoustic emissions within halo structures surrounding active regions.
Donea, Alina C.   +2 more
core   +1 more source

Relationship between ae signal strength and absolute energy in determining damage classification of concrete structures [PDF]

open access: yes, 2006
The most efficient tools in real monitoring system is acoustic emission (AE). This technique can be used to identify the damage classifications in RC structure.
Abdullah, Siti Radziah   +2 more
core   +2 more sources

Four‐Point Bending Tests at High Temperatures on Commercial MgO‐C Refractory Bricks with and Without Recyclate Considering Different Carbon Contents

open access: yesAdvanced Engineering Materials, EarlyView.
Four‐point bending tests are conducted in an argon atmosphere on commercial MgO‐C brick grades with and without MgO‐C recyclate from room temperature up to 1300 °C. No detrimental effect of the MgO‐C recyclates on bending strength is found. Instead, a decisive influence of the total carbon content is observed, with lower total carbon contents ...
Alexander Schramm   +5 more
wiley   +1 more source

Acoustic Emission Control of Compounds with Interference, Which Are Assembled by Thermal Method

open access: yesActa Technologica Agriculturae
Acoustic emission control means for tension connections are proposed. The features of the contact zone, such as the gas gap between the shaft and the bushing and the penetration of microroughnesses of the shaft surface into the bushing surface, are ...
Zenkin Mykola   +3 more
doaj   +1 more source

Analysis of acoustic emission signal of polyester/cotton yarns in the moment of tensile fracture by kernel density estimation method

open access: yesJournal of Hebei University of Science and Technology, 2016
To study tensile fracture of various component fibers of polyester/cotton yarns, acoustic emission signal acquisition device is built, which is used to collect the acoustic emission signals of polyester, cotton and polyester/cotton ring spun yarn ...
Jin WANG   +4 more
doaj   +1 more source

Multimodal Data‐Driven Microstructure Characterization

open access: yesAdvanced Engineering Materials, EarlyView.
A self‐consistent autonomous workflow for EBSP‐based microstructure segmentation by integrating PCA, GMM clustering, and cNMF with information‐theoretic parameter selection, requiring no user input. An optimal ROI size related to characteristic grain size is identified.
Qi Zhang   +4 more
wiley   +1 more source

Acoustic emission from crumpling paper [PDF]

open access: yesPhysical Review E, 1996
12 pages of text, 9 figures, submitted to Phys. Rev. E, additional information availible at http://www.msc.cornell.edu/~houle/crumpling/
Houle, Paul A., Sethna, James P.
openaire   +3 more sources

Hidden Order in Crackling Noise during Peeling of an Adhesive Tape

open access: yes, 2008
We address the long standing problem of recovering dynamical information from noisy acoustic emission signals arising from peeling of an adhesive tape subject to constant traction velocity.
B. N. J. Persson   +6 more
core   +1 more source

Bioinspired Shape‐Memory Hook Fasteners With Programmable Interlocking and Silent Release

open access: yesAdvanced Engineering Materials, EarlyView.
Bioinspired hook fasteners made from epoxy shape‐memory polymers are shown to switch between strong, secure attachment and gentle, silent release when heated. By combining programmable geometry and material response, these adaptive fasteners outperform commercial systems in strength and noise control, enabling new solutions for robotics, medical ...
Maria I. Vallejo Ciro   +3 more
wiley   +1 more source

Effect of moisture content on characteristic stress and acoustic emission characteristics of red sandstone

open access: yesRock and Soil Mechanics, 2021
In order to investigate the response law of moisture content to the characteristic stress and acoustic emission characteristics of red sandstone, the uniaxial compression tests of red sandstone under different moisture content conditions were conducted ...
ZHAO Kui   +4 more
doaj   +1 more source

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