Results 31 to 40 of about 128,951 (314)

Measurement and Characterization of Acoustic Noise in Water Pipeline Channels

open access: yesIEEE Access, 2019
Measurement and characterization of acoustic noise in water pipeline systems across the 10 Hz to 100 kHz acoustic frequency band are reported in this paper.
Amartansh Dubey   +3 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

Research on Loss Characteristics Based on the Vibration Law of Granular Assembly

open access: yesShock and Vibration
Particle damping technology is a typical passive vibration damping technology. In order to further explore the energy dissipation characteristics of particle dampers under different excitation, the relationship between internal vibration state and energy
Shengwu Zhang   +6 more
doaj   +1 more source

Noise maps for acoustically sensitive navigation [PDF]

open access: yesSPIE Proceedings, 2004
More and more robotic applications are equipping robots with microphones to improve the sensory information available to them. However, in most applications the auditory task is very low-level, only processing data and providing auditory event information to higher-level navigation routines.
Martinson, Eric, Arkin, Ronald C.
openaire   +1 more source

Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying

open access: yesAdvanced Engineering Materials, EarlyView.
An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara   +8 more
wiley   +1 more source

Influence of recording devices and environmental noise on acoustic index scores: Implications for bird sound-based assessments

open access: yesEcological Indicators
Passive acoustic monitoring serves as a minimally invasive and effective method for biodiversity assessment, particularly in bird monitoring through the application of acoustic indices.
Chengyun Zhang   +4 more
doaj   +1 more source

Experimental study of the noise generated by urban high-voltage electrical substations

open access: yesMeasurement: Sensors, 2022
This work describes the results of sound pressure measurements carried out in the vicinity of ten high voltage electrical substations operating in areas of considerable urban density in the State of Rio de Janeiro. The work was motivated as a strategy to
Juan José Gómez Acosta   +3 more
doaj   +1 more source

From Shear to Sound: Mechanics–Acoustics Mapping of TPMS Lattices

open access: yesAdvanced Engineering Materials, EarlyView.
Triply periodic minimal surface (TPMS) lattices are mapped across mechanical and acoustic performance, revealing that descriptors validated in compression fail under shear. First‐time comparison with trusses included. A transition from porous to resonance‐driven absorption emerges at 25% density.
Lucía Doyle   +3 more
wiley   +1 more source

Research on the mechanism of acoustic radiation characteristics of granular assemblies

open access: yesAIP Advances
To study the acoustic radiation characteristics of forced vibration of granular assemblies, the acoustic radiation model of a single particle and the acoustic radiation model of granular assemblies are established. Combined with experimental verification,
Shengwu Zhang   +4 more
doaj   +1 more source

Punch press noise control through partial acoustic enclosure: A Field Study [PDF]

open access: yesSalāmat-i kār-i Īrān, 2022
Introduction: Punch press is contributed as one of the major industrial machines to produce metal objects, which typically propagates hazardous noise. Acoustic enclosure is the most common method to mitigate noise transmitted from industrial equipment ...
ali Safari variani   +4 more
doaj  

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