Results 151 to 160 of about 258,136 (192)
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Wettability Evaluation by Fast Field Cycling NMR Relaxometry
SPE Kingdom of Saudi Arabia Annual Technical Symposium and Exhibition, 2018Abstract Wettability is an essential concept to understand oil trapping due to adhesion and capillary forces, and it depends on the fluid/rock molecular interactions within the thin liquid layer on the pore surface. The conventional methods for wettability determination exploit its macroscopic averaging effects during various ...
Jun Gao, Hyung T Kwak, Ahmad M Al Harbi
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New applications and perspectives of fast field cycling NMR relaxometry
Magnetic Resonance in Chemistry, 2015The field cycling NMR relaxometry method (also known as fast field cycling (FFC) when instruments employing fast electrical switching of the magnetic field are used) allows determination of the spin‐lattice relaxation time (T1) continuously over five decades of Larmor frequency.
Rebecca M, Steele +3 more
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ChemInform Abstract: Fast‐field‐cycling NMR: Applications and Instrumentation.
ChemInform, 2002AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
E. Anoardo, G. Galli, G. Ferrante
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?Canard? cycles of fast-slow fields with one-dimensional slow component
Mathematical Notes of the Academy of Sciences of the USSR, 1991zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Belikov, S. A., Samborskij, S. N.
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Translational studies with fast field-cycling MRI
2014Aims and objectives: Fast-field cycling MRI (FFC-MRI) is a new imaging technique that allows varying the main magnetic field during a scan. This allows exploring tissue properties over several decades of magnetic field strength.
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A high-field air-cored magnet coil design for fast-field-cycling NMR
Journal of Magnetic Resonance (1969), 1988Abstract A mathematical formalism is described which allows the design of the most effective geometry for homogeneous, fast-switchable field-cycling magnets. The method minimizes the electric power needed to produce a flux density B subject to constraints on the homogeneity and effective volume.
K.H Schweikert, R Krieg, F Noack
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Rapid field-cycling MRI using fast spin-echo.
Magnetic resonance in medicine, 2015Fast field-cycling MRI (FFC-MRI) is a technique that promises to expand upon the diagnostic capabilities of conventional MRI by allowing the main field, B0 , to be varied during a pulse sequence, thus allowing access to new types of endogenous contrast.
Ross, Peter James +2 more
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Inverse Methods for Fast Field Cycling and NMR Correlation Experiments
2023This thesis focuses on the development of inverse methods for nuclear magnetic res- onance (NMR) correlation or exchange experiments and new fast field cycling (FFC) modelling approaches. Moreover, the theoretical framework to consider fast field cycling as an inverse problem is provided and the possibility to employ established regularization methods ...
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Rapid multi-field T(1) estimation algorithm for Fast Field-Cycling MRI.
Journal of magnetic resonance (San Diego, Calif. : 1997), 2014Fast Field-Cycling MRI (FFC-MRI) is an emerging MRI technique that allows the main magnetic field to vary, allowing probing T1 at various magnetic field strengths. This technique offers promising possibilities but requires long scan times to improve the signal-to-noise ratio.
Lionel M, Broche +3 more
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Chapter 21. Fast Field-cycling NMR Experiments with Hyperpolarized Spins
2018This chapter gives an overview of field-cycling applications for the control of nuclear spin order in hyperpolarized spin ensembles. Such methods are used for strong signal enhancement in NMR spectroscopy, for the preservation of non-thermal order and for the analysis of the polarization process.
Alexey S. Kiryutin +3 more
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