Results 11 to 20 of about 990,474 (216)

A Comprehensive Method to Mitigate Forced Oscillations in Large Interconnected Power Grids

open access: yesIEEE Access, 2021
Multiple severe forced oscillation events have recently been observed across the North American interconnections and around the world. These forced oscillations have caused power swings, limited power transfer capability, damaged equipment, and persisted
Lin Zhu   +11 more
doaj   +1 more source

A Weighted Linear Least Squares Location Method of an Acoustic Emission Source without Measuring Wave Velocity

open access: yesSensors, 2020
The location of an acoustic emission (AE) source is crucial for predicting and controlling potential hazards. In this paper, a novel weighted linear least squares location method for AE sources without measuring wave velocity is proposed.
Zilong Zhou   +5 more
doaj   +1 more source

A Comparison of Two Types of Acoustic Emission Sensors for the Characterization of Hydrogen-Induced Cracking

open access: yesSensors, 2023
Acoustic emission (AE) technology is a non-destructive testing (NDT) technique that is able to monitor the process of hydrogen-induced cracking (HIC).
Dandan Liu   +3 more
doaj   +1 more source

A New Acoustic Emission Source Location Method Using Tri-Variate Kernel Density Estimator

open access: yesIEEE Access, 2019
A new AE location method using tri-variate kernel density estimator is developed in this paper. Firstly, combinations of every six arrivals are obtained from a multi-sensor location system, and the preliminary location results are obtained by solving the
Zilong Zhou   +6 more
doaj   +1 more source

Verification of 3D AE Source Location Technique in Triaxial Compression Tests Using Pencil Lead Break Sources on a Cylindrical Metal Specimen

open access: yesApplied Sciences, 2022
Recently, the acoustic emission (AE) technique has been widely applied in the field of geotechnical engineering. One of the main applications of this technique is to locate damage sources, which is known as the AE source location technique.
Xianfeng Li   +3 more
doaj   +1 more source

A Probabilistic Tremor Location Method

open access: yesGeophysical Research Letters, 2020
A method to locate tremor with an unclear onset is introduced. The method maps envelopes of cross‐correlated records from pairs of seismographs to signal likelihoods using Bayes' theorem.
Ka Lok Li, Olafur Gudmundsson
doaj   +1 more source

ARCHITECTING LOCATION INTELLIGENCE PLATFORMS USING OPEN-SOURCE COMPONENTS [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2021
Location Intelligence is an emerging application of geospatial industry. It allows professionals from different business domains (finance, disaster management, retail, health) and with minimum expertise in GIS technologies to use efficiently many spatial
A. Benahmed Daho, H. Bekhelifi
doaj   +1 more source

Noise Source Location Optimization

open access: yesShock and Vibration, 1994
This article describes a method to determine locations of noise sources that minimize modal coupling in complex acoustic volumes. Using the acoustic source scattering capabilities of the boundary element method, predictions are made of mode shape and ...
Ed O’Keefe, Russ Graves
doaj   +1 more source

Robust Localization for Near- and Far-Field Signals with an Unknown Number of Sources

open access: yesFractal and Fractional, 2023
Source location is a constant issue of importance of both theoretical study and practical engineering. Many pioneers have put out the corresponding solutions for near- or far-field signals, and preferred contributions are suggested. To our best knowledge,
Tao Liu   +4 more
doaj   +1 more source

Locating Partial Discharges in Power Transformers with Convolutional Iterative Filtering

open access: yesSensors, 2023
The most common source of transformer failure is in the insulation, and the most prevalent warning signal for insulation weakness is partial discharge (PD).
Jonathan Wang   +3 more
doaj   +1 more source

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