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A theoretical description of â€˜Hâ€˜H dipolar nuclear spin relaxation in a multispin system has been worked out by forming a diffusion equat ion for a one-dimensional chain of equidistant spins. The spin-diffusion equat ion is formed from first principles by assuming nearest neighbor interactions for a molecule undergoing isotropic random reorientation. Thisâ€¦ (More)

The r.f. properties of a high-resolution NMR probehead constructed of epitaxial thin films of hightemperature superconducting ceramics are presented. Operating the probe transmit/receive elements at 25 K significantly decreases the thermal noise of the r.f. coils and increases the probe quality factor (Q), resulting in a substantial increase in theâ€¦ (More)

In this paper, the lineshape variations in the multiplet structure fragments with a spin-2 and spin-1 directly bonded to each of a spin-12 nucleus I ( C) scalar coupled to a quadrupolar spin S other such as Câ€“ H, Câ€“ N, Nâ€“ H, and Hâ€“ N. All ( H) as a function of the strength of the irradiating radiofrequency these spin pairs have a J-coupling interactionâ€¦ (More)

- J. Madhuri Sailaja, K. Vijaya Babu, Nagarajan Murali, Vivek Veeraiah
- Journal of advanced research
- 2017

This paper investigated the Sr doping effect on the microstructure, chemical stability, and conductivity of Ba1-x Sr x Ce0.65Zr0.25Nd0.1O3-Î´ (0Â â©½Â xÂ â©½Â 0.2) electrolyte prepared by sol-gel method. The lattice constants and unit cell volumes were found to decrease as Sr atomic percentage increased in accordance with the Vegard law, confirming the formation ofâ€¦ (More)

- K. Babu, Nagarajan Murali, Kothandapani Babu, Paulos Taddesse Shibeshi, Vivek Veeraiah
- 2014

Structural, elastic, electronic, and optical properties of cubic perovskite CsCaCl3 are calculated using the full-potential linearized augmented plane wave method in the density functional theory. The exchange-correlation potential is evaluated using the local density approximation and generalized gradient approximation. Further, the modi ed Becke Johnsonâ€¦ (More)

- Sean A Smith, Nagarajan Murali
- Journal of magnetic resonance
- 1999

We have investigated the suitability and performance of various decoupling methods on systems in which an observed spin-1/2 nucleus I (13C or 15N) is scalar-coupled to a quadrupolar spin S (2H). Simulations and experiments have been conducted by varying the strength of the irradiating radiofrequency (RF) field, RF offset, relaxation times, and decouplingâ€¦ (More)

- Nagarajan Murali, William Marcus Miller, Boban K John, Daina A Avizonis, Stephen H Smallcombe
- Journal of magnetic resonance
- 2006

Spectral unraveling by space-selective Hadamard spectroscopy (SUSHY) enables recording of NMR spectra of multiple samples loaded in multiple sample tubes in a modified spinner turbine and a regular 5mm liquids NMR probe equipped with a tri-axis pulsed field gradient coil. The individual spectrum from each sample is extracted by adding and subtracting dataâ€¦ (More)

This article is a primer that is intended to serve as a concise source of information for researchers interested in learning relaxation aspects in NMR. Explicit expressions have been derived for the equation of motion of nuclear spins in the solution state. General expressions valid for all motional regimes, including anisotropy of spin interactions andâ€¦ (More)

- V. Vijith Krishnan, Nagarajan Murali
- Progress in nuclear magnetic resonanceâ€¦
- 2013

- Nagarajan Murali
- Journal of magnetic resonance
- 2006

In line with the recent development of the rapid single scan technique to calibrate proton flip angle, a new method that allows calibration of X-nucleus pulse width in a single scan is presented. The method involves observation of the anti-phase coherence of a proton coupled to a hetero-nuclear X-spin with nutation pulses applied at the X-spin resonanceâ€¦ (More)

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