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

Insensitive Nuclei Enhanced by Polarization Transfer (INEPT)01:15

Insensitive Nuclei Enhanced by Polarization Transfer (INEPT)

950
Insensitive Nuclei Enhanced by Polarization Transfer (INEPT) is an advanced Nuclear Magnetic Resonance (NMR) technique specifically designed to detect and enhance the signals of low-abundance nuclei, such as carbon-13 and nitrogen-15, in small molecules. The fundamental principle behind INEPT is the transfer of polarization from a more abundant and highly polarizable nucleus, typically hydrogen-1, to the low-abundance nucleus of interest. This process effectively boosts the NMR signal of the...
950
Bandpass Sampling01:17

Bandpass Sampling

449
In signal processing, bandpass sampling is an effective technique for sampling signals that have most of their energy concentrated within a narrow frequency band. This type of signal is known as a bandpass signal. The key principle of bandpass sampling involves sampling the signal at a rate that is greater than twice the signal's bandwidth to prevent aliasing.
A bandpass signal has a spectrum with a lower frequency limit, denoted as ω1, and an upper frequency limit, denoted as ω2....
449
¹H NMR: Interpreting Distorted and Overlapping Signals01:02

¹H NMR: Interpreting Distorted and Overlapping Signals

1.4K
Spin systems where the difference in chemical shifts of the coupled nuclei is greater than ten times J are called first-order spin systems. These nuclei are weakly coupled, and their chemical shifts and coupling constant can generally be estimated from the well-separated signals in the spectrum.
As Δν decreases and the signals move closer, the doublets appear increasingly distorted. The intensities of the inner lines increase at the cost of those of the outer lines as the signals are...
1.4K
Double Resonance Techniques: Overview01:12

Double Resonance Techniques: Overview

650
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...
650

You might also read

Related Articles

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

Sort by
Same author

LRQuant+: A Unified and Learnable Framework to Post-Training Quantization for Transformer-Based Large Foundation Models.

IEEE transactions on pattern analysis and machine intelligence·2025
Same author

Phase-shifting profilometry resistant to varying ambient light.

Optics express·2025
Same author

Quad-color dark-bright pulse trapping in a fiber laser.

Optics express·2025
Same author

Correction to "Engineered Platelet Microparticle-Membrane Camouflaged Nanoparticles for Targeting the Golgi Apparatus of Synovial Fibroblasts to Attenuate Rheumatoid Arthritis".

ACS nano·2025
Same author

Plasma lipoprotein subclasses and risk of incident knee osteoarthritis: A population-based cohort study.

Osteoarthritis and cartilage·2025
Same author

Investigation into the Efficient Cooperative Planning Approach for Dual-Arm Picking Sequences of Dwarf, High-Density Safflowers.

Sensors (Basel, Switzerland)·2025

Related Experiment Video

Updated: Jan 4, 2026

Data Acquisition Protocol for Determining Embedded Sensitivity Functions
07:46

Data Acquisition Protocol for Determining Embedded Sensitivity Functions

Published on: April 20, 2016

6.5K

Enhanced sensitivity at high-order exceptional points in a passive wireless sensing system.

Chao Zeng, Yong Sun, Guo Li

    Optics Express
    |November 6, 2019
    PubMed
    Summary

    This study introduces a novel passive wireless sensing system with enhanced sensitivity. By utilizing effective gain and parity-time (PT) symmetry, the system achieves ultra-sensitive detection of external perturbations.

    More Related Videos

    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

    6.5K
    Using Extraordinary Optical Transmission to Quantify Cardiac Biomarkers in Human Serum
    09:23

    Using Extraordinary Optical Transmission to Quantify Cardiac Biomarkers in Human Serum

    Published on: December 13, 2017

    6.6K

    Related Experiment Videos

    Last Updated: Jan 4, 2026

    Data Acquisition Protocol for Determining Embedded Sensitivity Functions
    07:46

    Data Acquisition Protocol for Determining Embedded Sensitivity Functions

    Published on: April 20, 2016

    6.5K
    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

    6.5K
    Using Extraordinary Optical Transmission to Quantify Cardiac Biomarkers in Human Serum
    09:23

    Using Extraordinary Optical Transmission to Quantify Cardiac Biomarkers in Human Serum

    Published on: December 13, 2017

    6.6K

    Area of Science:

    • Physics
    • Electrical Engineering
    • Materials Science

    Background:

    • Wireless sensors face limitations in sensing resolution and sensitivity.
    • External perturbations can significantly affect sensor performance.

    Purpose of the Study:

    • To develop a passive wireless sensing system with enhanced sensitivity.
    • To address the challenge of intrinsic sensing limitations in wireless sensors.

    Main Methods:

    • Realization of a passive wireless sensing system with three coupled passive resonators.
    • Exploitation of input wave as effective gain to establish parity-time (PT) symmetry.
    • Obtaining third-order exceptional points in ternary PT symmetric systems.

    Main Results:

    • Demonstration of enhanced sensitivity in the passive wireless sensing system.
    • Analytical and experimental validation of cube-root dependence of resonance response on perturbation.
    • Achieving ultra-sensitivity through effective gain and PT symmetry.

    Conclusions:

    • The developed system offers a novel approach to ultra-sensitive passive wireless sensing.
    • The findings pave the way for improved sensing resolution and performance in wireless sensor applications.
    • Exploiting PT symmetry and effective gain is a promising strategy for advanced sensor design.