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 Nucleosome Core Particle02:10

The Nucleosome Core Particle

14.5K
Nucleosomes are the DNA-histone complex, where the DNA strand is wound around the histone core. The histone core is an octamer containing two copies of H2A, H2B, H3, and H4 histone proteins.
The paradox
Nucleosomes, paradoxically, perform two opposite functions simultaneously. On the one hand, their main responsibility is to protect the delicate DNA strands from physical damage and help achieve a higher compaction ratio. While on the other hand, they must allow polymerase enzymes to access DNA...
14.5K
The Nucleosome Core Particle01:12

The Nucleosome Core Particle

2.4K
Nucleosomes are the DNA-histone complex, where the DNA strand is wound around the histone core. The histone core is an octamer containing two copies of H2A, H2B, H3, and H4 histone proteins.
Nucleosomes, paradoxically, perform two opposite functions simultaneously. On the one hand, their primary aim is to protect the delicate DNA strands from physical damage and help achieve a higher compaction ratio. On the other hand, they must allow polymerase enzymes to access histone-bound DNA during...
2.4K
Torsion of Noncircular Members01:16

Torsion of Noncircular Members

586
Circular shafts undergoing torsional stress maintain their cross-sectional integrity due to their axisymmetric nature. This symmetry ensures an even distribution of stress, allowing the shaft to withstand torsion without distorting. In contrast, square bars, lacking this axial symmetry, experience significant distortion across their cross-sections when subjected to torsion, with the exception of along their diagonals and at lines connecting midpoints. A detailed examination of a cubic element...
586
Torsional Pendulum01:09

Torsional Pendulum

7.4K
A torsional pendulum involves the oscillation of a rigid body in which the restoring force is provided by the torsion in the string from which the rigid body is suspended. Ideally, the string should be massless; practically, its mass is much smaller than the rigid body's mass and is neglected.
As long as the rigid body's angular displacement is small, its oscillation can be modeled as a linear angular oscillation. The amplitude of the oscillation is an angle. The role of mass is played...
7.4K
Bending and Torsional Moments01:20

Bending and Torsional Moments

5.8K
Bending and torsional moments are two fundamental concepts in structural engineering. They play an important role in understanding the behavior of materials and structures under different loading conditions.
The reaction developed in a structural element when subjected to an external force causes the element to bend. When a structural element bends upwards, it creates compressive normal forces on the top and tensile normal forces on the bottom, resulting in a couple that determines the bending...
5.8K
What is a Mode?01:07

What is a Mode?

26.3K
The mode is one of the commonly used measures of a central tendency. It is defined as the most frequent value in a data set.
There can be more than one mode in a data set if multiple values have the same highest frequency. For instance, suppose that the Statistics exam scores of 20 students are: 50; 53; 59; 59; 63; 63; 72; 72; 72; 72; 72; 76; 78; 81; 83; 84; 84; 84; 90; 93. Here, the mode is 72, as it occurs most frequently, five times.
A data set with two modes is called bimodal. For example,...
26.3K

You might also read

Related Articles

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

Sort by
Same author

Dual-pilot phase recovery with pair-wise maximum-ratio combining for coherent PONs.

Optics letters·2026
Same author

Simplified layered MLSE for PAM4 short-reach optical interconnects.

Optics express·2026
Same author

Physics-informed neural Volterra compensation enabling over 2600× efficiency improvement in 12,057-km ultra-long-haul coherent transmission.

Communications engineering·2026
Same author

Semantic Communication Based on Slot Attention for MIMO Transmission in 6G Smart Factories.

Sensors (Basel, Switzerland)·2026
Same author

Preclinical Evaluation of Triptophenolide-Induced Apoptosis in Hepatoblastoma (HepG2) and Hepatocellular Carcinoma (HuH7) Cell Lines.

International journal of molecular sciences·2026
Same author

CCT-adaptive dual-branch pre-equalization for pc-LED based visible light communication.

Optics express·2026

Related Experiment Video

Updated: Feb 6, 2026

Muscle Function Obtained with Motion Mode Ultrasound and Surface Electromyography during Core Endurance Exercise
09:21

Muscle Function Obtained with Motion Mode Ultrasound and Surface Electromyography during Core Endurance Exercise

Published on: August 25, 2022

3.8K

Torsion sensor based on inter-core mode coupling in seven-core fiber.

Fengze Tan, Zhengyong Liu, Jiajing Tu

    Optics Express
    |August 19, 2018
    PubMed
    Summary

    A new seven-core fiber torsion sensor accurately detects rotation. This novel optical fiber sensor shows a high sensitivity of 1.00 nm/° and can distinguish between clockwise and counter-clockwise twisting directions.

    More Related Videos

    Evaluating the Function of the Foot Core System in the Elderly
    08:25

    Evaluating the Function of the Foot Core System in the Elderly

    Published on: March 11, 2022

    3.3K
    Author Spotlight: Innovative Device Development for Advancing Dendroecology and Wood Anatomy Research
    07:05

    Author Spotlight: Innovative Device Development for Advancing Dendroecology and Wood Anatomy Research

    Published on: September 27, 2024

    3.0K

    Related Experiment Videos

    Last Updated: Feb 6, 2026

    Muscle Function Obtained with Motion Mode Ultrasound and Surface Electromyography during Core Endurance Exercise
    09:21

    Muscle Function Obtained with Motion Mode Ultrasound and Surface Electromyography during Core Endurance Exercise

    Published on: August 25, 2022

    3.8K
    Evaluating the Function of the Foot Core System in the Elderly
    08:25

    Evaluating the Function of the Foot Core System in the Elderly

    Published on: March 11, 2022

    3.3K
    Author Spotlight: Innovative Device Development for Advancing Dendroecology and Wood Anatomy Research
    07:05

    Author Spotlight: Innovative Device Development for Advancing Dendroecology and Wood Anatomy Research

    Published on: September 27, 2024

    3.0K

    Area of Science:

    • Fiber optics
    • Optical sensing
    • Material science

    Background:

    • Accurate rotation measurement is crucial in various industrial applications.
    • Existing torsion sensors often face limitations in sensitivity or orientation discrimination.

    Purpose of the Study:

    • To propose and demonstrate a novel torsion sensor utilizing inter-core mode coupling in seven-core fiber (SCF).
    • To investigate the sensor's sensitivity, accuracy, and ability to discriminate rotation direction.

    Main Methods:

    • Fabrication of a torsion sensor by tapering a commercially available SCF spliced with single-mode fibers.
    • Experimental optimization of taper waist diameter and length for optimal transmission spectrum.
    • Torsion measurement to analyze wavelength shift and sensitivity.
    • Theoretical analysis using mode coupling dynamics and optical anisotropy in twisted fiber.

    Main Results:

    • The transmission spectrum exhibits a red shift with increasing fiber twist.
    • Achieved a high torsion sensitivity of up to 1.00 nm/°.
    • Demonstrated the ability to differentiate between clockwise and counter-clockwise rotation based on the direction of wavelength shift.
    • Confirmed stable performance and high accuracy through repeated measurements.

    Conclusions:

    • The developed seven-core fiber torsion sensor offers a promising solution for accurate rotation measurement.
    • The sensor's ability to discriminate rotation orientation and its high sensitivity make it suitable for demanding applications.
    • The theoretical analysis aligns well with experimental findings, validating the sensor's operational principle.