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

Static Equilibrium - II01:07

Static Equilibrium - II

9.0K
Static equilibrium is a special case in mechanics that is very important in everyday life. It occurs when the net force and the net torque on an object or system are both zero. This means that both the linear and angular accelerations are zero. Thus, the object is at rest, or its center of mass is moving at a constant velocity. However, this does not mean that no forces are acting on the object within the system. In fact, there are very few scenarios on Earth in which no forces are acting upon...
9.0K
Torque On A Current Loop In A Magnetic Field01:13

Torque On A Current Loop In A Magnetic Field

4.8K
The most common application of magnetic force on current-carrying wires is in electric motors. These consist of loops of wire, which are placed between the magnets with a magnetic field. When current flows through the loops, the magnetic field applies torque, which causes the shaft to rotate, thus converting electrical energy to mechanical energy.
Consider a rectangular current-carrying loop containing N turns of wire, placed in a uniform magnetic field. The net force on a current-carrying loop...
4.8K
Stability of structures01:14

Stability of structures

259
In mechanical engineering, the stability of systems under various forces is critical for designing durable and efficient structures. One fundamental way to explore these concepts is by analyzing systems like two rods connected at a pivot point, O, with a torsional spring of spring constant k at the pivot point. This system is similar in appearance to a scissor jack used to change tires on a car. In this case, the arms of the linkage (equivalent to the rods in this system) are entirely vertical,...
259
Temperature Dependent Deformation01:12

Temperature Dependent Deformation

202
In a nonhomogeneous rod made up of steel and brass, restrained at both ends and subjected to a temperature change, several steps are involved in calculating the stress and compressive load. Due to the problem's static indeterminacy, one end support is disconnected, allowing the rod to experience the temperature change freely. Next, an unknown force is applied at the free end, triggering deformations in the rod's steel and brass portions. These deformations are then calculated and added...
202
Statically Indeterminate Problem Solving01:16

Statically Indeterminate Problem Solving

508
Statically indeterminate problems are those where statics alone can not determine the internal forces or reactions. Consider a structure comprising two cylindrical rods made of steel and brass. These rods are joined at point B and restrained by rigid supports at points A and C. Now, the reactions at points A and C and the deflection at point B are to be determined. This rod structure is classified as statically indeterminate as the structure has more supports than are necessary for maintaining...
508
Deformation of Member under Multiple Loadings01:11

Deformation of Member under Multiple Loadings

225
When a rod is made of different materials or has various cross-sections, it must be divided into parts that meet the necessary conditions for determining the deformation. These parts are each characterized by their internal force, cross-sectional area, length, and modulus of elasticity. These parameters are then used to compute the deformation of the entire rod.
In the case of a member with a variable cross-section, the strain is not constant but depends on the position. The deformation of an...
225

You might also read

Related Articles

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

Sort by
Same author

Green-Kubo relation in a mesoscale odd fluid model.

The Journal of chemical physics·2026
Same author

A universal scaling law for active diffusion in complex media.

Nature communications·2026
Same author

Reply to Fernández-Quevedo García et al.: Surface tension in phase-separated active Brownian particles.

Proceedings of the National Academy of Sciences of the United States of America·2026
Same author

First Full-Scale 2D Field Experiment on Semi-Embedded Rubber Column Metamaterials: Enhanced Attenuation of Love Waves and Mechanistic Insights.

Materials (Basel, Switzerland)·2025
Same author

Surface tension between coexisting phases of active Brownian particles.

Proceedings of the National Academy of Sciences of the United States of America·2025
Same author

Hyperuniform mixing of binary active spinners.

Soft matter·2025
Same journal

Nanopore sequencing with proteins: synchronization and dischronization of molecular dynamics simulations with laboratory and industrial developments.

Soft matter·2026
Same journal

Catanionics from biosurfactants and regular surfactants: miscibility and structure.

Soft matter·2026
Same journal

Adhesives with a thickness smaller than the fractocohesive length enhance adhesion.

Soft matter·2026
Same journal

Non-equilibrium phase transitions in hybrid Voronoi models of cell colonies.

Soft matter·2026
Same journal

Effects of methoxy substituents on self-assembly and gelation performance of benzamide-based organogelators.

Soft matter·2026
Same journal

Rheology of <i>Escherichia coli</i> suspensions with various bacterial morphologies and motion characteristics.

Soft matter·2026
See all related articles

Related Experiment Video

Updated: Sep 22, 2025

Application of Passive Head Motion to Generate Defined Accelerations at the Heads of Rodents
05:04

Application of Passive Head Motion to Generate Defined Accelerations at the Heads of Rodents

Published on: July 21, 2022

1.8K

Active depletion torque between two passive rods.

Longfei Li1,2, Peng Liu2,3,4, Ke Chen2,3,5

  • 1School of Physics, Beijing Institute of Technology, Beijing 100081, China. ningzheng@bit.edu.cn.

Soft Matter
|May 24, 2022
PubMed
Summary
This summary is machine-generated.

Active depletion torque in active baths differs from passive systems. External constraints can alter torque direction, unlike equilibrium depletion torque, impacting anisotropic particle dynamics.

More Related Videos

A Tactile Automated Passive-Finger Stimulator TAPS
19:44

A Tactile Automated Passive-Finger Stimulator TAPS

Published on: June 3, 2009

13.8K
Magnetic Tweezers for the Measurement of Twist and Torque
11:41

Magnetic Tweezers for the Measurement of Twist and Torque

Published on: May 19, 2014

23.4K

Related Experiment Videos

Last Updated: Sep 22, 2025

Application of Passive Head Motion to Generate Defined Accelerations at the Heads of Rodents
05:04

Application of Passive Head Motion to Generate Defined Accelerations at the Heads of Rodents

Published on: July 21, 2022

1.8K
A Tactile Automated Passive-Finger Stimulator TAPS
19:44

A Tactile Automated Passive-Finger Stimulator TAPS

Published on: June 3, 2009

13.8K
Magnetic Tweezers for the Measurement of Twist and Torque
11:41

Magnetic Tweezers for the Measurement of Twist and Torque

Published on: May 19, 2014

23.4K

Area of Science:

  • Soft Matter Physics
  • Statistical Mechanics
  • Active Matter Physics

Background:

  • The equilibrium entropic torque governs interactions between passive objects.
  • Active baths introduce self-propelled particles, altering system dynamics.
  • Understanding active torques is crucial for self-assembling systems.

Purpose of the Study:

  • To compute the active depletion torque on two passive rods in an active bath.
  • To compare active depletion torque with equilibrium entropic torque.
  • To investigate the influence of external constraints on active depletion torque.

Main Methods:

  • Brownian dynamics simulations were employed.
  • Two passive rods were immersed in an active bath of active Brownian particles.
  • The rotational degree of freedom was subjected to external constraints.

Main Results:

  • Active depletion torque is qualitatively different from its passive counterpart.
  • External constraints significantly affect active depletion torque magnitude and direction.
  • Active particle accumulation near rods, driven by self-propulsion, explains these effects.

Conclusions:

  • Active depletion torque exhibits unique behaviors compared to equilibrium systems.
  • Constraints on rotational freedom can reverse the active depletion torque direction.
  • Findings are relevant for self-assembly and dynamics of anisotropic macromolecules in biological systems.