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

Potential Due to a Magnetized Object01:24

Potential Due to a Magnetized Object

778
Magnetic dipoles in magnetic materials are aligned when placed under an external magnetic field. For paramagnets and ferromagnets, dipole alignment occurs in the direction of the magnetic field. However, the dipoles align opposite to the field in the case of diamagnets. This state of magnetic polarization due to the external field is called magnetization. Magnetization is defined as the dipole moment per unit volume. It plays a similar role to polarization in electrostatics.
The vector...
778
Potential Due to a Polarized Object01:29

Potential Due to a Polarized Object

759
A neutral atom consists of a positively charged nucleus surrounded by a negatively charged electron cloud. When placed in an external electric field, the external electric force pulls the electrons and nucleus apart, opposite to the intrinsic attraction between the nucleus and the electrons. The opposing forces balance each other with a slight shift between the center of masses of the nucleus and the electron cloud, resulting in a polarized atom. On the other hand, a few molecules, like water,...
759
Colors and Magnetism03:02

Colors and Magnetism

14.0K
Color in Coordination Complexes
When atoms or molecules absorb light at the proper frequency, their electrons are excited to higher-energy orbitals. For many main group atoms and molecules, the absorbed photons are in the ultraviolet range of the electromagnetic spectrum, which cannot be detected by the human eye. For coordination compounds, the energy difference between the d orbitals often allows photons in the visible range to be absorbed and emitted, which is seen as colors by the human...
14.0K
Moment of Inertia of Compound Objects01:07

Moment of Inertia of Compound Objects

7.5K
The moment of inertia is a quantitative measure of the rotational inertia of an object. It is defined as the sum of the products obtained by multiplying the mass of each particle of matter in a given body by the square of its distance from the axis. The total moment of inertia for compound objects can be found by determining and adding the moment of inertia of individual components together.
Consider a child of mass (mc) 25 kg standing at a distance (rc) of 1 m from the axis of a rotating...
7.5K
Gravitational Potential Energy for Extended Objects01:07

Gravitational Potential Energy for Extended Objects

1.9K
Consider a system comprising several point masses. The coordinates of the center of mass for this system can be expressed as the summation of the product of each mass and its position vector divided by the total mass:
1.9K
Magnetism01:30

Magnetism

8.4K
Magnets are commonly found in everyday objects, such as toys, hangers, elevators, doorbells, and computer devices. Experimentation on these magnets shows that all magnets have two poles: one is labeled north (N) and the other south (S). Magnetic poles repel if they are alike and attract if unlike. Moreover, both poles of a magnet attract unmagnetized pieces of iron.
An individual magnetic pole cannot be isolated. No matter how small, every piece of a magnet contains a north pole and a south...
8.4K

You might also read

Related Articles

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

Sort by
Same author

Oscillatory Dynamics and Energy Transport in Twisted Magnetic Flux Tubes of the Solar Photosphere.

Solar physics·2026
Same author

Lagrangian chaotic saddles and objective vortices in solar plasmas.

Physical review. E·2021
Same author

Multi-spectral optical imaging of the spatiotemporal dynamics of ionospheric intermittent turbulence.

Scientific reports·2018
Same author

Reconstruction of chaotic saddles by classification of unstable periodic orbits: Kuramoto-Sivashinsky equation.

Chaos (Woodbury, N.Y.)·2015
Same author

Edge of chaos and genesis of turbulence.

Physical review. E, Statistical, nonlinear, and soft matter physics·2013
Same author

Lagrangian coherent structures at the onset of hyperchaos in the two-dimensional Navier-Stokes equations.

Chaos (Woodbury, N.Y.)·2013

Related Experiment Video

Updated: Jan 24, 2026

Fabrication of Magnetic Nanostructures on Silicon Nitride Membranes for Magnetic Vortex Studies Using Transmission Microscopy Techniques
06:27

Fabrication of Magnetic Nanostructures on Silicon Nitride Membranes for Magnetic Vortex Studies Using Transmission Microscopy Techniques

Published on: July 2, 2018

8.5K

Objective magnetic vortex detection.

Erico L Rempel1,2, Tiago F P Gomes2, Suzana S A Silva1

  • 1Institute of Aeronautical Technology (ITA), World Institute for Space Environment Research (WISER), São José dos Campos, São Paulo 12228-900, Brazil.

Physical Review. E
|May 22, 2019
PubMed
Summary

A new method accurately detects magnetic vortices and flux ropes in space plasma turbulence. This objective technique, based on integrated averaged current deviation, works in 2D and 3D magnetohydrodynamic simulations.

More Related Videos

Scanning SQUID Study of Vortex Manipulation by Local Contact
06:53

Scanning SQUID Study of Vortex Manipulation by Local Contact

Published on: February 1, 2017

7.3K
Author Spotlight: Enhancement of Salient Object Detection for Smart Grid Applications
03:31

Author Spotlight: Enhancement of Salient Object Detection for Smart Grid Applications

Published on: December 15, 2023

1.0K

Related Experiment Videos

Last Updated: Jan 24, 2026

Fabrication of Magnetic Nanostructures on Silicon Nitride Membranes for Magnetic Vortex Studies Using Transmission Microscopy Techniques
06:27

Fabrication of Magnetic Nanostructures on Silicon Nitride Membranes for Magnetic Vortex Studies Using Transmission Microscopy Techniques

Published on: July 2, 2018

8.5K
Scanning SQUID Study of Vortex Manipulation by Local Contact
06:53

Scanning SQUID Study of Vortex Manipulation by Local Contact

Published on: February 1, 2017

7.3K
Author Spotlight: Enhancement of Salient Object Detection for Smart Grid Applications
03:31

Author Spotlight: Enhancement of Salient Object Detection for Smart Grid Applications

Published on: December 15, 2023

1.0K

Area of Science:

  • Space Physics
  • Astrophysical Plasmas
  • Magnetohydrodynamics

Background:

  • Magnetic coherent vortical structures are common in space and astrophysical plasmas.
  • Understanding plasma turbulence requires effective detection of these structures.

Purpose of the Study:

  • To explore a recently developed method for detecting magnetic vortices.
  • To validate the method's objectivity and accuracy in simulations.

Main Methods:

  • Utilized two- and three-dimensional magnetohydrodynamic (MHD) simulations.
  • Applied the integrated averaged current deviation method.
  • Verified objectivity through invariance under observer rotations and translations.

Main Results:

  • The integrated averaged current deviation method proved to be objective.
  • Accurately detected the boundaries of magnetic vortices in 2D simulations.
  • Successfully identified magnetic flux ropes in 3D simulations.

Conclusions:

  • The integrated averaged current deviation is a reliable tool for detecting magnetic vortices and flux ropes.
  • This method enhances the study of turbulence in space and astrophysical plasmas.