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

Double Resonance Techniques: Overview01:12

Double Resonance Techniques: Overview

848
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...
848
Three-Phase Circuits01:22

Three-Phase Circuits

1.0K
AC power distribution systems have three categories: single-phase, two-phase, and three-phase systems. The single-phase circuit, common in residential settings, typically employs a two-wire system connecting a single AC source to various loads. These circuits support standard household appliances operating at 120 volts (V) and 240 V, such as lamps, televisions, and microwaves. The first generators, Niagara Falls hydro plant installed in 1895, were two-phase and designed by Nikola Tesla. The...
1.0K
Generation of Three-Phase Voltage01:21

Generation of Three-Phase Voltage

961
A three-phase AC generator has a rotor with a rotating magnet placed within the stator mounted with the stationary three-phase winding to generate three-phase voltages via mutual induction. These windings are evenly distributed around the inner circumference of the stator and are arranged 120 electrical degrees apart. Three-phase stator windings consist of three separate coils or groups of coils, known as phases, each connected in Y (star) configuration or Delta configuration.
As the rotor...
961
Conservative Site-specific Recombination and Phase Variation02:53

Conservative Site-specific Recombination and Phase Variation

7.3K
Because the DNA segments are cut and reorganized in a direction-specific manner, site-specific recombination has emerged as an efficient genetic engineering technique. Flippase and Cyclization recombinases or Flp and Cre, respectively, are two members of the tyrosine recombinase family derived from bacteriophages, that are used to mediate site-specific DNA insertions, deletions, and targeted expression of proteins in mammalian cell lines.
The recognition sites for Cre recombinase called LoxP...
7.3K
Power System Three-Phase Short Circuits01:21

Power System Three-Phase Short Circuits

624
Determining the subtransient fault current in a power system involves representing transformers by their leakage reactances, transmission lines by their equivalent series reactances, and synchronous machines as constant voltage sources behind their subtransient reactances. In this analysis, certain elements are excluded, such as winding resistances, series resistances, shunt admittances, delta-Y phase shifts, armature resistance, saturation, saliency, non-rotating impedance loads, and small...
624
Three-Phase Voltages01:30

Three-Phase Voltages

720
A three-phase generator produces three voltages that are equal in magnitude but have a phase difference of 120 degrees. This identical magnitude and equal phase separated voltages are known as the balanced voltages and help to minimize power loss while ensuring a steady delivery of energy to connected loads. As voltage sources in a three-phase system can be configured in a wye or a delta formation, the loads connected to these systems can also be arranged in either configuration. This...
720

You might also read

Related Articles

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

Sort by
Same author

Cochlear size variation in a large-scale international multicentre cohort.

Hearing research·2026
Same author

A Lipid-Conjugation Strategy for Intracellular Reactive Oxygen Species Control in Hepatic Cells.

Angewandte Chemie (International ed. in English)·2026
Same author

Human papillomavirus infection and the risk of uveitis: a propensity-score-matched electronic health record study.

Scientific reports·2026
Same author

Real-World Utilization and Initial Experience with Aflibercept-ayyh (PAVBLU<sup>®</sup>) for Retinal Disorders in United States Retina Practices: A Descriptive Retrospective Analysis.

Ophthalmology and therapy·2026
Same author

Complications Following Cervical Laminoplasty With Reconstruction: A Systematic Review and Meta-Analysis.

Spine·2026
Same author

Accordion-like tuning of composite pulse dipolar recoupling in solid-state NMR.

The Journal of chemical physics·2026
Same journal

Localization-driven exchange contrast in diffusion exchange spectroscopy.

Journal of magnetic resonance (San Diego, Calif. : 1997)·2026
Same journal

4.5 Tesla superconducting miniature magnet in liquid nitrogen.

Journal of magnetic resonance (San Diego, Calif. : 1997)·2026
Same journal

Folding and unfolding dynamics of a DNA aptamer studied by heteronuclear <sup>1</sup>H-<sup>13</sup>C correlation zz-exchange spectroscopy.

Journal of magnetic resonance (San Diego, Calif. : 1997)·2026
Same journal

Multi-spin control from one-spin pulses.

Journal of magnetic resonance (San Diego, Calif. : 1997)·2026
Same journal

Altering MRI rotating frame relaxations by changing the truncation level of Hyperbolic Secant pulse.

Journal of magnetic resonance (San Diego, Calif. : 1997)·2026
Same journal

Effects of proton exchange on the lifetimes of long-lived states in aliphatic chains.

Journal of magnetic resonance (San Diego, Calif. : 1997)·2026
See all related articles

Related Experiment Video

Updated: Mar 27, 2026

Generation and Coherent Control of Pulsed Quantum Frequency Combs
06:42

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Published on: June 8, 2018

9.8K

Three pulse recoupling and phase jump matching.

James Lin1, R G Griffin2, Niels Chr Nielsen3

  • 1School of Engineering and Applied Sciences, United States.

Journal of Magnetic Resonance (San Diego, Calif. : 1997)
|January 19, 2016
PubMed
Summary
This summary is machine-generated.

Researchers developed novel three pulse recoupling sequences for solid-state NMR. These sequences enhance sensitivity in 2D NMR experiments, proving robust against common experimental challenges.

Keywords:
Gamma preparationHartmann–Hahn matchingMASQuadrature detectionRecoupling

More Related Videos

Pure Shift Nuclear Magnetic Resonance: a New Tool for Plant Metabolomics
13:16

Pure Shift Nuclear Magnetic Resonance: a New Tool for Plant Metabolomics

Published on: July 31, 2021

2.5K
Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source
12:19

Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source

Published on: April 4, 2017

8.9K

Related Experiment Videos

Last Updated: Mar 27, 2026

Generation and Coherent Control of Pulsed Quantum Frequency Combs
06:42

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Published on: June 8, 2018

9.8K
Pure Shift Nuclear Magnetic Resonance: a New Tool for Plant Metabolomics
13:16

Pure Shift Nuclear Magnetic Resonance: a New Tool for Plant Metabolomics

Published on: July 31, 2021

2.5K
Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source
12:19

Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source

Published on: April 4, 2017

8.9K

Area of Science:

  • Solid-state Nuclear Magnetic Resonance (NMR) spectroscopy.
  • Advanced pulse sequence development for NMR.

Background:

  • Traditional recoupling pulse sequences in solid-state NMR face limitations due to chemical shift dispersion and radiofrequency (rf) inhomogeneity.
  • Developing robust pulse sequences is crucial for improving spectral resolution and sensitivity in complex solid-state NMR experiments.

Purpose of the Study:

  • To introduce a novel family of recoupling pulse sequences, termed three pulse recoupling.
  • To demonstrate the applicability of these sequences for both homonuclear and heteronuclear recoupling.
  • To leverage these sequences for enhanced sensitivity in two-dimensional (2D) solid-state NMR experiments.

Main Methods:

  • Design and implementation of three pulse recoupling sequences.
  • Utilizing gamma preparation to encode chemical shifts into the indirect dimension of 2D NMR experiments.
  • Employing recoupling elements to refocus chemical shift encoded states into inphase coherence.

Main Results:

  • The proposed three pulse recoupling sequences exhibit robustness against chemical shift dispersion and rf-inhomogeneity.
  • Successful application in designing 2D solid-state NMR experiments.
  • Demonstrated sensitivity enhancement in 2D NMR experiments through efficient coherence manipulation and quadrature detection.

Conclusions:

  • Three pulse recoupling sequences offer a significant advancement for solid-state NMR spectroscopy.
  • These sequences provide a versatile and robust tool for homonuclear and heteronuclear recoupling.
  • The developed methodology enables improved sensitivity and spectral quality in advanced 2D NMR applications.