Pulsed field gradient (PFG) techniques are key to magnetic resonance imaging, spatially selective spectroscopy and studies of diffusion via diffusion ordered nuclear magnetic resonance spectroscopy (DOSY).

Feb 8, 2021 · In this paper, the concept of the m-polar fuzzy graph (m-PFG) and interval-valued fuzzy graph (IVFG) is integrated and introduced an unprecedented kind of fuzzy graph designated as m-polar interval-valued fuzzy graph (m-PIVFG).

Mar 14, 2023 · Different types of integrity on m PFG such as node integrity, dominating integrity, and edge integrity are discussed thoroughly along with some of its interesting facts have been introduced. Under isomorphism, their properties have also been studied. We also discussed the interrelation between them.

May 17, 2023 · With the ultimate goal of constructing robust pulse sequences that create high-quality NMR spectra with minimum set-up, PFGs are utilized to achieve an exclusive selection of a specific coherence transfer pathway as well as to purge all kinds of undesired magnetization.

Nov 11, 2021 · Pulsed-field gradient nuclear magnetic resonance (PFG-NMR) is a widely used method for determining the diffusion coefficient of ions and molecules both in the bulk and when confined (e.g., within porous materials).

Pulsed field gradients (PFGs), also known as gradient enhanced spectroscopy (GES), can be used to achieve coherence selection and minimize the need for extensive phase cycling.

PFG NMR spectroscopy is based on a series of experiments where pulses of magnetic field gradients of increasing strength are applied to yield the self-diffusion coefficients of a given molecule (e.g., CO2).

A PFG is a period during which the B 0 field is made spatially inhomogeneous. Thus, during the application of a PFG, a dephasing effect of the magnetization takes place. In general, after applying a PFG, the spatially dependent phase is given by where i tands for all individual nuclear species involved in the coherence.

Mar 27, 2024 · Pulsed field gradient nuclear magnetic resonance (PFG-NMR) is a powerful methodology that encodes the microscopic molecular displacements of a substance. Subsequent analysis of the PFG-NMR data then recovers the substance’s molecular …

In this work, we demonstrate the application of the double-PFG MRI technique to measure the diameter of cylindrical pores of microscopic dimensions and adopt the technique to measure the cell size in plants.