Results 31 to 40 of about 161,231 (277)

Low Field-NMR Relaxation Characteristics of Glyceryl Oleate System

open access: yesChinese Journal of Magnetic Resonance, 2018
Low field-nuclear magnetic resonance (LF-NMR) relaxation characteristics of glyceride mixture can be used in rapid monitoring and product analysis of lipid remodeling processes.
CHENG Shi, WANG Xin, LIU Bao-lin
doaj   +1 more source

Transverse NMR relaxation as a probe of mesoscopic structure

open access: yes, 2002
Transverse NMR relaxation in a macroscopic sample is shown to be extremely sensitive to the structure of mesoscopic magnetic susceptibility variations. Such a sensitivity is proposed as a novel kind of contrast in the NMR measurements. For suspensions of
D. A. Yablonskiy   +10 more
core   +1 more source

Relaxation Dispersion NMR Spectroscopy [PDF]

open access: yes, 2015
Relaxation dispersion nuclear magnetic resonance (NMR) spectroscopy has been developed since the 1950s and has now evolved into a very sensitive and versatile tool to study chemical and conformational exchange processes on the micro- to milliseconds (µs–ms) time scale. While relaxation dispersion NMR was originally designed with small molecules in mind,
Sauerwein, AC, Hansen, DF
openaire   +2 more sources

51V-NMR study of antiferromagnetic state and spin dynamics in the quasi-one-dimensional BaCo2V2O8 [PDF]

open access: yes, 2012
We report on our 51V-NMR study of static and dynamical magnetic properties in the quasi-one-dimensional antiferromagnet BaCo2V2O8. Although the NMR spectrum shows well-defined antiferromagnetic (AF) order in the N\'eel ground state, the AF characteristic
He, Zhangzhen   +7 more
core   +1 more source

Experimental analysis of oil-water nuclear magnetic relaxation characteristics of complex conglomerate reservoir

open access: yes地球与行星物理论评
The lithology and pore structure of conglomerate reservoir in the Mahu sag, China, are complex, which makes it difficult to identify reservoir fluids. In this study, the body relaxation characteristics of crude oil at different temperatures were obtained
Chaoguo Tian   +6 more
doaj   +1 more source

NMR evidence for static local nematicity and its cooperative interplay with low-energy magnetic fluctuations in FeSe under pressure [PDF]

open access: yes, 2017
We present $^{77}$Se-NMR measurements on single-crystalline FeSe under pressures up to 2 GPa. Based on the observation of the splitting and broadening of the NMR spectrum due to structural twin domains, we discovered that static, local nematic ordering ...
Bud'ko, S. L.   +5 more
core   +5 more sources

Predicting protein dynamics from structural ensembles

open access: yes, 2015
The biological properties of proteins are uniquely determined by their structure and dynamics. A protein in solution populates a structural ensemble of metastable configurations around the global fold.
Copperman, J., Guenza, M. G.
core   +1 more source

A systematic investigation of drilling fluid bulk relaxation impact on NMR interpretation for formation evaluation

open access: yesPetroleum
During drilling, mud filtrate invasion alters near-wellbore properties which possibly impacts well logging measurements causing inaccuracies in formation evaluation.
Fauzan Akomolafe   +4 more
doaj   +1 more source

A Unique and Simple Approach to Improve Sensitivity in 15N-NMR Relaxation Measurements for NH3+ Groups: Application to a Protein-DNA Complex

open access: yesMolecules, 2017
NMR spectroscopy is a powerful tool for research on protein dynamics. In the past decade, there has been significant progress in the development of NMR methods for studying charged side chains. In particular, NMR methods for lysine side-chain NH3+ groups
Dan Nguyen   +3 more
doaj   +1 more source

Study of electron spin dynamics in grain aligned LaCoPO: an itinerant ferromagnet

open access: yes, 2010
139La NMR study was performed in grain aligned (c|| H0) sample of LaCoPO and polycrystalline LaFePO. Knight shift is isotropic and temperature independent in LaFePO. It is strongly temperature dependent and anisotropic in LaCoPO.
A. Ghoshray   +7 more
core   +1 more source

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