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

Transmission Line Design Considerations01:23

Transmission Line Design Considerations

213
Aluminum has become the material of choice for overhead transmission lines, surpassing copper due to its abundance and cost-effectiveness. The most prevalent type is the aluminum conductor, steel-reinforced (ACSR), which combines aluminum strands around a steel core. Other variants include all-aluminum conductors (AAC), all-aluminum alloy conductors (AAAC), aluminum conductor alloy-reinforced (ACAR), and aluminum-clad steel conductors. Advanced designs, such as aluminum conductors with steel...
213
IR Absorption Frequency: Hybridization01:21

IR Absorption Frequency: Hybridization

771
Hydrocarbons such as alkanes, alkenes, and alkynes show characteristic C–H stretching absorption bands. These IR stretching frequencies depend on the hybridization of the involved carbon atom and can be explained in terms of the s character of each hybridized atomic orbital.
Among the sp, sp2, and sp3 hybridized orbitals, sp orbitals have the maximum s character (50%). Consequently, the electrons are held more closely to the nucleus, resulting in stronger and shorter C–H bonds that...
771
Unsymmetric Loading of Thin-Walled Members: Problem Solving01:07

Unsymmetric Loading of Thin-Walled Members: Problem Solving

165
The shear center of a channel section with uniform thickness, height, and width, is determined by computing the shear force in the member and calculating the moments of inertia of the sections.
To compute the shear forces, find the shear flow at a specific distance from the endpoint using the vertical shear and the moment of inertia values. The total shear force on the flange is calculated by integrating the shear flow from one end of the flange to the other.
Next, calculate the moments of...
165
Ampere-Maxwell's Law: Problem-Solving01:17

Ampere-Maxwell's Law: Problem-Solving

751
A parallel-plate capacitor with capacitance C, whose plates have area A and separation distance d, is connected to a resistor R and a battery of voltage V. The current starts to flow at t = 0. What is the displacement current between the capacitor plates at time t? From the properties of the capacitor, what is the corresponding real current?
To solve the problem, we can use the equations from the analysis of an RC circuit and Maxwell's version of Ampère's law.
For the first part of...
751
Double Resonance Techniques: Overview01:12

Double Resonance Techniques: Overview

293
Double resonance techniques in Nuclear Magnetic Resonance (NMR) spectroscopy involve the simultaneous application of two different frequencies or radiofrequency pulses to manipulate and observe two distinct nuclear spins. One important application of double resonance is spin decoupling, which selectively suppresses coupling with one type of nucleus while observing the NMR signal from another nucleus, simplifying the spectrum and enhancing resolution.
Spin decoupling is usually achieved by...
293
Reducing Line Loss01:18

Reducing Line Loss

193
In a three-phase circuit, line loss is an indicator of energy dissipated as heat due to the resistance of transmission lines. To address this, incorporating transformers into the system—a step-up transformer at the source and a step-down transformer at the load—is a strategic solution. Two three-phase transformers are introduced to improve this.
With a step-up transformer at the source, the voltage is increased, thereby reducing the current in the transmission lines since power loss...
193

You might also read

Related Articles

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

Sort by
Same author

Association of apolipoprotein E gene polymorphisms with risk of coronary artery disease in a Han Chinese population at middle and high altitude in China.

Frontiers in endocrinology·2026
Same author

Effect of canalith repositioning on resting-state brain functional connectivity in patients with benign paroxysmal positional vertigo.

Frontiers in neurology·2026
Same author

Enhancing innovation performance in renewable energy through sustainable business model innovation: The moderating role of industry 4.0 technologies.

Journal of environmental management·2025
Same author

Genome-wide identification of the <i>COBRA-like</i> gene family and expression pattern analysis under abiotic stresses of <i>Sorghum bicolor</i> (L.).

Frontiers in plant science·2025
Same author

Genome-Wide Identification of the Dirigent Gene Family and Expression Pattern Analysis Under Drought and Salt Stresses of <i>Sorghum bicolor</i> (L.).

Genes·2025
Same author

Genome-Wide Analysis of the Maize LBD Gene Family Reveals a Role for <i>ZmLBD12</i> in the Development of Lateral Roots.

Plants (Basel, Switzerland)·2025
Same journal

Denoising algorithm of Φ-OTDR systems based on adaptive fractional wavelet transform denoising.

Optics express·2026
Same journal

Millisecond photon-to-photon latency and high-speed volumetric projection system for optogenetics.

Optics express·2026
Same journal

Polarization-encoded coaxial structured light for high-precision 3D surface profilometry.

Optics express·2026
Same journal

Discrete freeform optical design based on collaborative optimization of point cloud and local normals.

Optics express·2026
Same journal

Ultrafast ghost imaging with 25 GHz speckle switching and wavelength-division multiplexing.

Optics express·2026
Same journal

Atomic vapor cells fabricated by femtosecond laser welding of standard-optical-quality glass.

Optics express·2026
See all related articles

Related Experiment Video

Updated: Sep 11, 2025

Writing Bragg Gratings in Multicore Fibers
08:48

Writing Bragg Gratings in Multicore Fibers

Published on: April 20, 2016

8.2K

Classification algorithm-assisted multi-objective optimization in terahertz hollow core anti-resonant fiber design.

Lihong Zhai, Jiyang Luo, Hairuo Wang

    Optics Express
    |August 13, 2025
    PubMed
    Summary
    This summary is machine-generated.

    This study optimizes hollow anti-resonant fibers for terahertz applications using multi-objective algorithms and a novel classification surrogate model. The research enhances computational efficiency for designing fibers with low loss and high extinction ratios.

    More Related Videos

    Microwave Photonics Systems Based on Whispering-gallery-mode Resonators
    12:18

    Microwave Photonics Systems Based on Whispering-gallery-mode Resonators

    Published on: August 5, 2013

    17.1K
    Design and Characterization Methodology for Efficient Wide Range Tunable MEMS Filters
    15:25

    Design and Characterization Methodology for Efficient Wide Range Tunable MEMS Filters

    Published on: February 4, 2018

    6.2K

    Related Experiment Videos

    Last Updated: Sep 11, 2025

    Writing Bragg Gratings in Multicore Fibers
    08:48

    Writing Bragg Gratings in Multicore Fibers

    Published on: April 20, 2016

    8.2K
    Microwave Photonics Systems Based on Whispering-gallery-mode Resonators
    12:18

    Microwave Photonics Systems Based on Whispering-gallery-mode Resonators

    Published on: August 5, 2013

    17.1K
    Design and Characterization Methodology for Efficient Wide Range Tunable MEMS Filters
    15:25

    Design and Characterization Methodology for Efficient Wide Range Tunable MEMS Filters

    Published on: February 4, 2018

    6.2K

    Area of Science:

    • Optics and Photonics
    • Computational Science
    • Materials Science

    Background:

    • Hollow anti-resonant fibers (HARFs) are crucial for terahertz (THz) applications.
    • Designing HARFs requires optimizing multiple, often conflicting, performance metrics.
    • Computational efficiency is a significant challenge in HARF design optimization.

    Purpose of the Study:

    • To apply multi-objective optimization algorithms to the design of HARF structures in the THz band.
    • To introduce and evaluate a classification algorithm as a surrogate model for enhancing optimization efficiency.
    • To compare the performance of various multi-objective optimization algorithms for HARF design.

    Main Methods:

    • Utilized multi-objective optimization algorithms to design four distinct HARF models.
    • Developed a classification algorithm to act as a surrogate model for computational acceleration.
    • Optimized key performance indicators: low loss, high higher-order mode extinction ratio, high birefringence, and high polarization extinction ratio.
    • Compared the efficacy of different multi-objective optimization algorithms.

    Main Results:

    • The classification algorithm improved computational efficiency and aided in parameter tuning.
    • Comparative analysis revealed the performance characteristics of various optimization algorithms for HARF design.
    • Successfully optimized HARF designs for desired THz performance metrics.

    Conclusions:

    • Multi-objective optimization algorithms, augmented by a classification surrogate model, are effective for designing HARFs.
    • The proposed approach enhances computational efficiency and facilitates robust comparative analysis of optimization strategies.
    • This work provides a framework for the efficient design of advanced optical fibers for terahertz applications.