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

The Electromagnetic Spectrum02:37

The Electromagnetic Spectrum

64.9K
The electromagnetic spectrum consists of all the types of electromagnetic radiation arranged according to their frequency and wavelength. Each of the various colors of visible light has specific frequencies and wavelengths associated with them, and you can see that visible light makes up only a small portion of the electromagnetic spectrum. Because the technologies developed to work in various parts of the electromagnetic spectrum are different, for reasons of convenience and historical...
64.9K
The Electromagnetic Spectrum01:24

The Electromagnetic Spectrum

33.4K
Electromagnetic waves are categorized according to their wavelengths and frequencies, giving the electromagnetic spectrum. These waves are classified as radio, infrared, ultraviolet, etc. Radio waves refer to electromagnetic radiation with wavelengths ranging from millimeters to kilometers. Radio waves are commonly used for audio communications (i.e., radios) and typically result from an alternating current in the wires of a broadcast antenna. They cover a broad wavelength range and are used...
33.4K
Nonlinear Pharmacokinetics: Causes of Nonlinearity01:22

Nonlinear Pharmacokinetics: Causes of Nonlinearity

719
Nonlinearity in drug pharmacokinetics is caused by various factors influencing how a drug is absorbed, distributed, metabolized, and excreted. Understanding these nonlinear processes is crucial for predicting drug behavior in the body and optimizing drug dosing regimens.
Nonlinear drug absorption can occur when the process is rate-limited by solubility, carrier-mediated transport systems, or saturation of the presystemic gut wall or hepatic metabolism. For instance, high doses of riboflavin...
719
Electromagnetic Waves01:30

Electromagnetic Waves

11.2K
James Clerk Maxwell formulated a single theory combining all the electric and magnetic effects scientists knew during that time, calling the phenomena his theory predicted “Electromagnetic waves”. He brought together all the work that had been done by brilliant physicists such as Oersted, Coulomb, Gauss, and Faraday and added his own insights to develop the overarching theory of electromagnetism. Maxwell’s equations, combined with the Lorentz force law, encompass all the laws...
11.2K
Electromagnetic Fields01:30

Electromagnetic Fields

2.7K
Electric fields generated by static charges, often referred to as electrostatic fields, are characteristically different from electric fields created by time-varying magnetic fields. While the former is a conservative field, implying that no net work is done on a test charge if it goes around in a complete loop in the field, the latter is, by definition, not a conservative field; net work is done, and it is proportional to the rate of change of magnetic flux.
However, the observation of...
2.7K
Nonlinear Pharmacokinetics: Overview01:19

Nonlinear Pharmacokinetics: Overview

1.1K
Nonlinear or dose-dependent pharmacokinetics is a phenomenon that occurs when the pharmacokinetic parameters of certain drugs deviate from linear pharmacokinetics at higher doses. These drugs do not follow the expected first-order kinetics, where the rate of drug elimination is directly proportional to the drug concentration. Instead, they exhibit a nonlinear relationship, which can be attributed to several factors.
Nonlinearity can arise due to the saturation of plasma protein-binding or...
1.1K

You might also read

Related Articles

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

Sort by
Same author

Sex-based differences in ocular trauma: a systematic review with narrative synthesis.

Frontiers in public health·2026
Same author

Smartphone-Assisted Placido Ring Imaging for K1 Stratification in Keratoconus: A Deep Learning Study.

Diagnostics (Basel, Switzerland)·2026
Same author

Acanthamoeba keratitis: Insights into diagnostic challenges and treatment advances.

Survey of ophthalmology·2026
Same author

Primary anterior cruciate ligament tears are associated with a shift from varus-dominant to neutral and valgus coronal alignment phenotypes.

Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA·2026
Same author

Holographic leaky-wave antennas with independently controlled multiple counter-rotating vortex beams.

Scientific reports·2026
Same author

Posterior Segment Pressurization With Intravitreal Balanced Salt Solution to Stabilize Anterior Chamber Gas During Endothelial Keratoplasty.

Cornea·2026

Related Experiment Video

Updated: Jan 23, 2026

Setting Up a Stroke Team Algorithm and Conducting Simulation-based Training in the Emergency Department - A Practical Guide
09:52

Setting Up a Stroke Team Algorithm and Conducting Simulation-based Training in the Emergency Department - A Practical Guide

Published on: January 15, 2017

17.6K

Unconditionally stable FDTD algorithm for 3-D electromagnetic simulation of nonlinear media.

Mohammad Moradi, Seyyed-Mohammad Pourangha, Vahid Nayyeri

    Optics Express
    |June 6, 2019
    PubMed
    Summary

    A new unconditionally stable finite-difference time-domain (FDTD) method enhances 3D simulations of nonlinear media. This approach significantly reduces computational time beyond the Courant-Friedrichs-Lewy (CFL) limit while maintaining accuracy.

    More Related Videos

    Simulation, Fabrication and Characterization of THz Metamaterial Absorbers
    13:44

    Simulation, Fabrication and Characterization of THz Metamaterial Absorbers

    Published on: December 27, 2012

    15.9K
    Use of Electromagnetic Navigational Transthoracic Needle Aspiration E-TTNA for Sampling of Lung Nodules
    06:03

    Use of Electromagnetic Navigational Transthoracic Needle Aspiration E-TTNA for Sampling of Lung Nodules

    Published on: May 23, 2015

    22.8K

    Related Experiment Videos

    Last Updated: Jan 23, 2026

    Setting Up a Stroke Team Algorithm and Conducting Simulation-based Training in the Emergency Department - A Practical Guide
    09:52

    Setting Up a Stroke Team Algorithm and Conducting Simulation-based Training in the Emergency Department - A Practical Guide

    Published on: January 15, 2017

    17.6K
    Simulation, Fabrication and Characterization of THz Metamaterial Absorbers
    13:44

    Simulation, Fabrication and Characterization of THz Metamaterial Absorbers

    Published on: December 27, 2012

    15.9K
    Use of Electromagnetic Navigational Transthoracic Needle Aspiration E-TTNA for Sampling of Lung Nodules
    06:03

    Use of Electromagnetic Navigational Transthoracic Needle Aspiration E-TTNA for Sampling of Lung Nodules

    Published on: May 23, 2015

    22.8K

    Area of Science:

    • Computational electromagnetics
    • Nonlinear optics
    • Numerical methods

    Background:

    • Accurate and efficient simulation of electromagnetic wave propagation in dispersive nonlinear media is crucial for optical device design.
    • Traditional finite-difference time-domain (FDTD) methods face stability limitations, restricting time-step sizes and increasing computational cost.
    • Existing methods often struggle to balance accuracy, stability, and computational efficiency for complex nonlinear media.

    Purpose of the Study:

    • To present the first unconditionally stable finite-difference time-domain (FDTD) method for three-dimensional (3D) simulations of dispersive nonlinear media.
    • To enable significantly larger time-steps in FDTD simulations, surpassing the Courant-Friedrichs-Lewy (CFL) stability limit.
    • To reduce overall computational time compared to classical nonlinear FDTD methods without compromising accuracy.

    Main Methods:

    • Development of a novel unconditionally stable FDTD algorithm.
    • Integration of an alternating-direction implicit (ADI) time-splitting scheme.
    • Application of the auxiliary differential equation (ADE) technique to handle dispersive and nonlinear properties.

    Main Results:

    • Demonstration of unconditional stability for 3D FDTD simulations in dispersive nonlinear media.
    • Significant increase in the permissible time-step size, exceeding the conventional CFL limit.
    • Substantial reduction in computational time compared to existing nonlinear FDTD methods.
    • Validation of the method's stability, accuracy, and computational efficiency through numerical examples.

    Conclusions:

    • The proposed FDTD method offers a breakthrough in simulating dispersive nonlinear media.
    • The combination of ADI and ADE techniques provides a robust and computationally efficient solution.
    • This advancement has significant implications for accelerating research and development in areas involving nonlinear optical phenomena.