Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Synthesis and Decomposition Reactions02:17

Synthesis and Decomposition Reactions

38.4K
Synthesis and decomposition are two types of redox reactions. Synthesis means to make something, whereas decomposition means to break something. The reactions are accompanied by chemical and energy changes. 
38.4K
Singularity Functions for Shear01:26

Singularity Functions for Shear

459
In structural analysis, singularity functions are crucial in simplifying the representation of shear forces in beams under discontinuous loading. These functions describe discontinuous  variations in shear force across a beam with varying loads by using a single mathematical expression, regardless of the complexity of the loading conditions. The singularity functions are derived from creating a free-body diagram of the beam and then making conceptual cuts at specific points to examine the...
459
Emission Spectra02:39

Emission Spectra

76.7K
When solids, liquids, or condensed gases are heated sufficiently, they radiate some of the excess energy as light. Photons produced in this manner have a range of energies, and thereby produce a continuous spectrum in which an unbroken series of wavelengths is present.
76.7K
Singularity Functions for Bending Moment01:18

Singularity Functions for Bending Moment

577
Singularity functions simplify the representation of bending moments in beams subjected to discontinuous loading, allowing the use of a single mathematical expression. For a supported beam AB, with uniform loading from its midpoint M to the right side end B, the approach involves conceptual 'cuts' at specific points to determine the bending moment in each segment. By cutting the beam at a point between A and M, the bending moment for the segment before reaching midpoint M is represented using a...
577
Positron Emission Tomography01:29

Positron Emission Tomography

7.7K
Positron emission tomography (PET) is a medical imaging technique involving radiopharmaceuticals — substances that emit short-lived radiation. Although the first PET scanner was introduced in 1961, it took 15 more years before radiopharmaceuticals were combined with the technique and revolutionized its potential.
One of the main requirements of a PET scan is a positron-emitting radioisotope, which is produced in a cyclotron and then attached to a substance used by the part of the body...
7.7K
Sinusoidal Sources01:18

Sinusoidal Sources

1.2K
Direct current (DC) refers to an electric current that flows in a single direction, maintaining a constant polarity. This is in contrast to alternating current (AC), which periodically changes its direction and magnitude. AC forms the backbone of modern electricity transmission and distribution systems due to its efficient long-distance transmission capabilities.
In homes, the power supplies use sinusoidal sources to provide electricity. These sources generate a voltage that varies sinusoidally...
1.2K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Antitumor effects of acupuncture and moxibustion: from immune modulation to tumor microenvironment remodeling.

Frontiers in immunology·2026
Same author

Transcrestal Sinus Floor Elevation Using Dental Implant Robot and Osseodensification Drills: A Preliminary Case Series.

Clinical implant dentistry and related research·2026
Same author

FGFR1 frameshift mutation mediates the dysfunction of mesenchymal stem cells in craniofacial microsomia.

Stem cell research & therapy·2026
Same author

GDI2 protein: research progress and its mechanisms in diseases.

Frontiers in cell and developmental biology·2026
Same author

Nanocellulose Alleviates Intrahepatic Cholestasis of Pregnancy via Gut Microbiota-Mediated Bile Acid Homeostasis.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)·2026
Same author

Adsorption of Molybdenum on Goethite Surface: A First-Principles Molecular Dynamics Simulation.

Inorganic chemistry·2026
Same journal

Ultrasonic characterization of functionally graded materials using a continuously graded model and spectral inversion.

Ultrasonics·2026
Same journal

Frequency-wavenumber domain inversion for arterial viscoelasticity.

Ultrasonics·2026
Same journal

Pressure- and frequency-dependent acoustic behavior of second-generation acoustic reporter genes-expressing bacteria for optimized ultrasound imaging.

Ultrasonics·2026
Same journal

Laser ultrasonic detection for strut defects in additively manufactured lattice structure using zero-group-velocity Lamb waves.

Ultrasonics·2026
Same journal

A hemispherical bubble induced by ultrasonic vibration observed by high-speed X-ray imaging.

Ultrasonics·2026
Same journal

Rayleigh damping for approximating Lamb wave attenuation in finite element simulations.

Ultrasonics·2026
See all related articles

Related Experiment Video

Updated: Feb 15, 2026

Simultaneously Capturing Real-time Images in Two Emission Channels Using a Dual Camera Emission Splitting System: Applications to Cell Adhesion
10:30

Simultaneously Capturing Real-time Images in Two Emission Channels Using a Dual Camera Emission Splitting System: Applications to Cell Adhesion

Published on: September 4, 2013

10.0K

Localizing two acoustic emission sources simultaneously using beamforming and singular value decomposition.

Tian He1, Ying Xie1, Yingchun Shan1

  • 1School of Transportation Science and Engineering, Beihang University, Beijing 100191, PR China.

Ultrasonics
|January 14, 2018
PubMed
Summary
This summary is machine-generated.

This study introduces a new method combining singular value decomposition (SVD) with beamforming to accurately locate two simultaneous acoustic emission (AE) sources, overcoming limitations of traditional beamforming for weak signals.

Keywords:
Acoustic emissionBeamformingLocalizationSingular value decompositionTwo simultaneous source

More Related Videos

Design and Use of a Full Flow Sampling System FFS for the Quantification of Methane Emissions
08:18

Design and Use of a Full Flow Sampling System FFS for the Quantification of Methane Emissions

Published on: June 12, 2016

17.4K
Simultaneous Multicolor Imaging of Biological Structures with Fluorescence Photoactivation Localization Microscopy
12:51

Simultaneous Multicolor Imaging of Biological Structures with Fluorescence Photoactivation Localization Microscopy

Published on: December 9, 2013

9.4K

Related Experiment Videos

Last Updated: Feb 15, 2026

Simultaneously Capturing Real-time Images in Two Emission Channels Using a Dual Camera Emission Splitting System: Applications to Cell Adhesion
10:30

Simultaneously Capturing Real-time Images in Two Emission Channels Using a Dual Camera Emission Splitting System: Applications to Cell Adhesion

Published on: September 4, 2013

10.0K
Design and Use of a Full Flow Sampling System FFS for the Quantification of Methane Emissions
08:18

Design and Use of a Full Flow Sampling System FFS for the Quantification of Methane Emissions

Published on: June 12, 2016

17.4K
Simultaneous Multicolor Imaging of Biological Structures with Fluorescence Photoactivation Localization Microscopy
12:51

Simultaneous Multicolor Imaging of Biological Structures with Fluorescence Photoactivation Localization Microscopy

Published on: December 9, 2013

9.4K

Area of Science:

  • Materials Science
  • Acoustics
  • Signal Processing

Background:

  • Localizing simultaneous acoustic emission (AE) sources is crucial for structural health monitoring.
  • Traditional beamforming methods (BFM) struggle with weak AE signals, leading to localization failures.
  • Identifying multiple simultaneous AE sources presents a significant challenge in structural integrity assessment.

Purpose of the Study:

  • To develop a novel method for accurately localizing two simultaneous acoustic emission (AE) sources.
  • To address the issue of weak AE sources being lost during localization using conventional beamforming.
  • To improve the reliability of AE source localization in complex scenarios.

Main Methods:

  • A new method integrating singular value decomposition (SVD) with beamforming (SVD-BFM) was developed.
  • AE data from two simultaneous sources with varying characteristics (frequency, magnitude, position) were analyzed.
  • SVD was employed as a pre-processing step to enhance signal quality and resolve localization ambiguities.

Main Results:

  • Direct application of beamforming resulted in the loss of weak AE source locations.
  • The SVD-BFM method demonstrated effective pre-processing of AE signals.
  • Experimental verification on a steel plate confirmed the capability of SVD-BFM to locate simultaneous double AE sources.

Conclusions:

  • The SVD-BFM method significantly improves the localization accuracy of simultaneous AE sources.
  • This novel approach overcomes the limitations of traditional beamforming for weak and multiple AE signals.
  • The SVD-BFM technique offers a robust solution for enhanced structural health monitoring through precise AE source identification.