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

Modeling and Similitude01:12

Modeling and Similitude

512
Scaled modeling is a fundamental technique in engineering, enabling the study of large and complex systems by creating smaller, manageable replicas that recreate critical characteristics of the original. In hydrology and civil infrastructure, for example, scaled models of dams help analyze water flow, turbulence, and pressure. This method allows for accurate predictions of real-world behavior within a controlled environment, significantly reducing the cost and time involved in full-scale...
512
Typical Model Studies01:30

Typical Model Studies

546
Fluid mechanics model studies often utilize scaled-down systems to predict fluid behavior in full-scale environments, such as river flows, dam spillways, and structures interacting with open surfaces. Maintaining Froude number similarity in river models is crucial, as it replicates surface flow features like wave patterns and velocities.
546
Magnetostatic Boundary Conditions01:28

Magnetostatic Boundary Conditions

1.5K
An electric field suffers a discontinuity at a surface charge. Similarly, a magnetic field is discontinuous at a surface current. The perpendicular component of a magnetic field is continuous across the interface of two magnetic mediums. In contrast, its parallel component, perpendicular to the current, is discontinuous by the amount equal to the product of the vacuum permeability and the surface current. Like the scalar potential in electrostatics, the vector potential is also continuous...
1.5K
Electrostatic Boundary Conditions01:16

Electrostatic Boundary Conditions

834
Consider an external electric field propagating through a homogeneous medium. When the electric field crosses the surface boundary of the medium, it undergoes a discontinuity. The electric field can be resolved into normal and tangential components. The amount by which the field changes at any boundary is given by the difference between the field components above and below the surface boundary.
The surface integral of an electric field is given by Gauss's law in integral form and is related to...
834
Dynamic Modulus of Elasticity of Concrete01:16

Dynamic Modulus of Elasticity of Concrete

790
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 a...
790
Mechanistic Models: Compartment Models in Algorithms for Numerical Problem Solving01:29

Mechanistic Models: Compartment Models in Algorithms for Numerical Problem Solving

214
Mechanistic models play a crucial role in algorithms for numerical problem-solving, particularly in nonlinear mixed effects modeling (NMEM). These models aim to minimize specific objective functions by evaluating various parameter estimates, leading to the development of systematic algorithms. In some cases, linearization techniques approximate the model using linear equations.
In individual population analyses, different algorithms are employed, such as Cauchy's method, which uses a...
214

You might also read

Related Articles

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

Sort by
Same author

Hydraulic fracturing volume is associated with induced earthquake productivity in the Duvernay play.

Science (New York, N.Y.)·2018
See all related articles

Related Experiment Video

Updated: Dec 15, 2025

Simulation of Human-induced Vibrations Based on the Characterized In-field Pedestrian Behavior
10:52

Simulation of Human-induced Vibrations Based on the Characterized In-field Pedestrian Behavior

Published on: April 13, 2016

9.0K

The Interface Between Empirical and Simulation-Based Ground-Motion Models.

Gail Marie Atkinson1

  • 1Department of Earth Sciences, Western University, London, N6A 5B7 Canada.

Pure and Applied Geophysics
|July 11, 2020
PubMed
Summary
This summary is machine-generated.

Developing advanced ground-motion models (GMMs) using seismic data from eastern North America can significantly reduce uncertainty in seismic hazard assessments. This leads to more accurate hazard calculations, especially for critical infrastructure like nuclear power plants.

Keywords:
Ground-motion modelsPSHAempirical modelseismological model

More Related Videos

Subject-specific Musculoskeletal Model for Studying Bone Strain During Dynamic Motion
09:32

Subject-specific Musculoskeletal Model for Studying Bone Strain During Dynamic Motion

Published on: April 11, 2018

10.1K
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

8.4K

Related Experiment Videos

Last Updated: Dec 15, 2025

Simulation of Human-induced Vibrations Based on the Characterized In-field Pedestrian Behavior
10:52

Simulation of Human-induced Vibrations Based on the Characterized In-field Pedestrian Behavior

Published on: April 13, 2016

9.0K
Subject-specific Musculoskeletal Model for Studying Bone Strain During Dynamic Motion
09:32

Subject-specific Musculoskeletal Model for Studying Bone Strain During Dynamic Motion

Published on: April 11, 2018

10.1K
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

8.4K

Area of Science:

  • Earthquake seismology
  • Seismic hazard analysis
  • Geophysics

Background:

  • Ground-motion models (GMMs) are crucial for probabilistic seismic hazard analyses (PSHA) and quantifying associated uncertainties.
  • Bridging seismological and empirical approaches in GMMs effectively represents ground motion distribution and uncertainty.

Purpose of the Study:

  • To present a methodology for calibrating seismological GMMs using ground-motion data from eastern North America.
  • To demonstrate how calibrated GMMs can account for source scaling, attenuation, site response, and kappa effects.

Main Methods:

  • Utilized ground-motion data recorded at seismograph sites in eastern North America.
  • Calibrated simple scalable seismological models of ground-motion generation and propagation.
  • Applied appropriate GMM strategies to reduce aleatory uncertainty (sigma).

Main Results:

  • Demonstrated that calibrated GMMs can effectively model key ground-motion characteristics.
  • Showed a significant potential reduction in aleatory uncertainty (sigma) through advanced GMM strategies.
  • Calculated lower seismic hazard for nuclear plants founded on rock due to reduced uncertainty.

Conclusions:

  • High-quality seismic monitoring and ongoing data analysis are essential for targeted GMM development.
  • Reduced uncertainty in GMMs leads to more reliable seismic hazard assessments for critical facilities.
  • Investment in seismic data and GMM research is vital for improving safety and risk evaluation.