Results 21 to 30 of about 161,231 (277)
Broadband Relaxation-Optimized Polarization Transfer in Magnetic Resonance [PDF]
, 2004 Many applications of magnetic resonance are limited by rapid loss of spin coherence caused by large transverse relaxation rates. In nuclear magnetic resonance (NMR) of large proteins, increased relaxation losses lead to poor sensitivity of experiments ...
B. Luy +9 more
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Ultrafast transverse relaxation exchange NMR spectroscopy
Physical Chemistry Chemical Physics, 2022 An ultrafast two-dimensional NMR method allows quantification of molecular exchange rates efficiently based onT2relaxation contrast.
Md Sharif Ullah +3 more
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Natural Gas Industry B, 2018 With complex lithology and reservoir types, as well as high concealment and heterogeneity, tight reservoirs in the Sichuan Basin involve significant uncertainties in gas–water relationship.
Yun Zhang, Jianmeng Wu, Guozhang Zhu
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Journal of Molecular Structure, 2007 Abstract Proton NMR spin–lattice relaxation times T1 were measured for urea as a function of temperature. An activation energy of 46.3 ± 4.7 kJ/mol was extracted and compared with the range of 38–65 kJ/mol previously reported in the literature as measured by different magnetic resonance techniques.
Taylor, Robert E +2 more
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Spin relaxation: is there anything new under the Sun? [PDF]
Magnetic Resonance, 2022 Spin relaxation has been at the core of many studies since the early days of nuclear magnetic resonance (NMR) and the underlying theory worked out by its founding fathers.
B. A. Rodin +3 more
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Учёные записки Казанского университета: Серия Естественные науки, 2019 The hydration state of the first coordination sphere of manganese complexes with hydroxyethylidene diphosphonic acid (HEDP, H4L) as well as for Mn(II) systems with salt compositions of aminomethylated calix[4]resorcinol (AMC) of different lipophilicity ...
E.A. Burilova +6 more
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Dipolar relaxation of multiple-quantum NMR coherences in a linear homogeneous chain of 19F nuclei in calcium fluoroapatite [PDF]
Magnetic Resonance in Solids, 2016 Experimental and theoretical investigations of dynamics and relaxation of multiple quantum (MQ) nuclear magnetic resonance (NMR) coherences of the zeroth and second orders are performed in a quasi-one-dimensional chain of nuclear spins of 19F in calcium ...
Bochkin G.A., Fel'dman E.B., Vasil'ev S.G.
doaj
Chinese Journal of Magnetic Resonance, 2022 Two-dimensional nuclear magnetic resonance (NMR) technology can perform non-destructive, rapid and quantitative measurement and characterization of various hydrogen-containing fluids in the reservoir, but is limited by the acquisition methods and ...
Zhen-lin WANG +6 more
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Transverse NMR relaxation in biological tissues [PDF]
NeuroImage, 2018 Transverse NMR relaxation is a fundamental physical phenomenon underpinning a wide range of MRI-based techniques, essential for non-invasive studies in biology, physiology and neuroscience, as well as in diagnostic imaging. Biophysically, transverse relaxation originates from a number of distinct scales - molecular (nanometers), cellular (micrometers),
Kiselev, Valerij G., Novikov, Dmitry S.
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Simulation of nuclear magnetic resonance response based on 3D CT images of sandstone core
Journal of Petroleum Exploration and Production Technology, 2023 In recent years, nuclear magnetic resonance (NMR) logging has become increasingly prevalent in the characterization of rock properties such as porosity, permeability, saturation, and pore size distribution.
Yuan Jin +4 more
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