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

Unsoundness of Aggregate due to Volume Change01:26

Unsoundness of Aggregate due to Volume Change

134
Unsoundness in aggregates due to volume changes is primarily caused by the physical alterations aggregates undergo, such as freezing and thawing, thermal changes, and wetting and drying. Unsound aggregates, when subjected to these changes, result in volume change upon disintegration. This, in turn, contributes to the deterioration of concrete, including scaling, pop-outs, and cracking. Particular types of aggregates, such as porous flints, cherts, and those containing clay minerals, are...
134
Types of Damping01:20

Types of Damping

6.5K
If the amount of damping in a system is gradually increased, the period and frequency start to become affected because damping opposes, and hence slows, the back and forth motion (the net force is smaller in both directions). If there is a very large amount of damping, the system does not even oscillate; instead, it slowly moves toward equilibrium. In brief, an overdamped system moves slowly towards equilibrium, whereas an underdamped system moves quickly to equilibrium but will oscillate about...
6.5K
Creep in Concrete01:22

Creep in Concrete

302
Creep refers to the time-dependent increase in strain under a sustained load, excluding other time-dependent deformations associated with shrinkage, swelling, and thermal expansion in concrete. The primary mechanism behind creep involves the loss of physically adsorbed water from the calcium silicate hydrate within the hydrated cement paste. This process is further exacerbated by concrete's non-linear stress-strain relationship, microcrack development in the interfacial transition zone, and...
302
Impact01:30

Impact

167
Impact occurs when two bodies collide, leading to the application of impulsive forces between them. Analyzing impact mechanics involves considering two colliding particles moving along a line known as the line of impact, which passes through their centers and is perpendicular to the contact plane.
When particles with different initial velocities collide, they induce deformation by applying equal and opposite impulses. At the point of maximum deformation, the particles move together with...
167
Influence of Earth's Curvature and Atmospheric Refraction on Leveling01:26

Influence of Earth's Curvature and Atmospheric Refraction on Leveling

144
During leveling, the Earth's curvature and atmospheric refraction introduce deviations in the line of sight from a true horizontal reference. When the line of sight is leveled, it remains perpendicular to the plumb line only at a single point. Beyond this, it deviates due to the Earth’s curvature, represented by the correction C. For a sight distance D, the deviation can be derived using the relationship:This relationship shows that the deviation increases quadratically with distance.
144
Dynamic Modulus of Elasticity of Concrete01:16

Dynamic Modulus of Elasticity of Concrete

397
The dynamic modulus of elasticity assesses how a concrete structure deforms under impact or dynamic loads. It is typically higher than the static modulus of elasticity, measured under slow, steady loading conditions.
The sonic test is a common method to determine the dynamic modulus. In this test, a concrete beam, sized either 6 x 6 x 30 inches or 4 x 4 x 20 inches, is clamped at its center. Vibrations are initiated at one end of the beam by an electromagnetic exciter unit powered by...
397

You might also read

Related Articles

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

Sort by
Same author

Advantages of Ferroelectrics as a Component of Heterostructures for Electronic Purposes: A DFT Insight.

Materials (Basel, Switzerland)·2023
Same author

Molecular Dynamics Modeling for the Determination of Elastic Moduli of Polymer-Single-Walled Carbon Nanotube Composites.

International journal of molecular sciences·2023
Same author

Effect of the Synthetic Approach on the Formation and Magnetic Properties of Iron-Based Nanophase in Branched Polyester Polyol Matrix.

International journal of molecular sciences·2022
Same author

Density Functional Theory Approach to the Vibrational Properties and Magnetic Specific Heat of the Covalent Chain Antiferromagnet KFeS<sub>2</sub>.

Molecules (Basel, Switzerland)·2022
Same author

Entropy and Non-Equilibrium Statistical Mechanics.

Entropy (Basel, Switzerland)·2020
Same author

Quantum Weak Invariants: Dynamical Evolution of Fluctuations and Correlations.

Entropy (Basel, Switzerland)·2020
Same journal

Research on a Regional Availability Evaluation Model for Road-Area High-Entropy Energy Based on Synergy Factors.

Entropy (Basel, Switzerland)·2026
Same journal

Atmospheric Turbulence Channel Modeling and Performance Analysis of a CO-ZP-OFDM Coherent Optical Communication System for UAV Air-to-Ground Scenarios.

Entropy (Basel, Switzerland)·2026
Same journal

Information Geometry and Asymptotic Theory for SMML Estimators.

Entropy (Basel, Switzerland)·2026
Same journal

Correlation Entropy and Power-Law Kinetics.

Entropy (Basel, Switzerland)·2026
Same journal

Research on the Contagion of Systemic Financial Risk Under the Impact of Climate Risks-From the Perspective of Complex Networks and Machine Learning.

Entropy (Basel, Switzerland)·2026
Same journal

The Statistical-Mechanical Meaning of the Wave Function of Quantum Mechanics.

Entropy (Basel, Switzerland)·2026
See all related articles

Related Experiment Video

Updated: Jul 21, 2025

Stress Distribution During Cold Compression of Rocks and Mineral Aggregates Using Synchrotron-based X-Ray Diffraction
10:36

Stress Distribution During Cold Compression of Rocks and Mineral Aggregates Using Synchrotron-based X-Ray Diffraction

Published on: May 20, 2018

9.7K

Aftershocks and Fluctuating Diffusivity.

Sumiyoshi Abe1,2,3, Norikazu Suzuki4, Dmitrii A Tayurskii2

  • 1Department of Physics, College of Information Science and Engineering, Huaqiao University, Xiamen 361021, China.

Entropy (Basel, Switzerland)
|July 29, 2023
PubMed
Summary
This summary is machine-generated.

The Omori-Utsu law describes earthquake aftershock decay in complex systems. This study models it as a relaxation process, revealing logarithmic time-invariance and aging phenomena.

Keywords:
Fokker-Planck theory with hierarchical dynamicsOmori-Utsu law for aftershocksfluctuating diffusivitylogarithmic time and agingslow relaxation

More Related Videos

Kinematic History of a Salient-recess Junction Explored through a Combined Approach of Field Data and Analog Sandbox Modeling
06:55

Kinematic History of a Salient-recess Junction Explored through a Combined Approach of Field Data and Analog Sandbox Modeling

Published on: August 5, 2016

8.2K
Dynamic Pore-scale Reservoir-condition Imaging of Reaction in Carbonates Using Synchrotron Fast Tomography
10:18

Dynamic Pore-scale Reservoir-condition Imaging of Reaction in Carbonates Using Synchrotron Fast Tomography

Published on: February 21, 2017

8.5K

Related Experiment Videos

Last Updated: Jul 21, 2025

Stress Distribution During Cold Compression of Rocks and Mineral Aggregates Using Synchrotron-based X-Ray Diffraction
10:36

Stress Distribution During Cold Compression of Rocks and Mineral Aggregates Using Synchrotron-based X-Ray Diffraction

Published on: May 20, 2018

9.7K
Kinematic History of a Salient-recess Junction Explored through a Combined Approach of Field Data and Analog Sandbox Modeling
06:55

Kinematic History of a Salient-recess Junction Explored through a Combined Approach of Field Data and Analog Sandbox Modeling

Published on: August 5, 2016

8.2K
Dynamic Pore-scale Reservoir-condition Imaging of Reaction in Carbonates Using Synchrotron Fast Tomography
10:18

Dynamic Pore-scale Reservoir-condition Imaging of Reaction in Carbonates Using Synchrotron Fast Tomography

Published on: February 21, 2017

8.5K

Area of Science:

  • Physics
  • Geophysics
  • Complex Systems

Background:

  • The Omori-Utsu law describes the power-law decay of earthquake aftershock frequency.
  • This law is observed in various complex systems exhibiting catastrophic events.
  • It is interpreted as a characteristic system response to significant disturbances.

Purpose of the Study:

  • To formulate the Omori-Utsu law as a relaxation process within a hierarchical dynamics framework.
  • To investigate the role of fast and slow degrees of freedom in this relaxation process.
  • To analyze the temporal characteristics and emergent phenomena of the system.

Main Methods:

  • Utilizing Fokker-Planck theory to model the load-state distribution.
  • Treating the diffusion coefficient in the load-state space as a fluctuating slow variable.
  • Reducing the full Fokker-Planck equation to analyze the subdynamics of the load state (fast degree of freedom).
  • Analyzing the Green's function of the reduced evolution equation.

Main Results:

  • The study successfully formulates the Omori-Utsu law as a relaxation process.
  • The subsystem governing the load state exhibits temporal translational invariance in logarithmic time.
  • This invariance leads to the emergence of aging phenomena.

Conclusions:

  • The Omori-Utsu law can be understood as a relaxation process in systems with hierarchical dynamics.
  • Logarithmic time-invariance in the fast degree of freedom is a key characteristic leading to aging.
  • The findings provide a theoretical framework for understanding the Omori-Utsu law in complex systems.