Results 101 to 110 of about 1,411 (123)
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Magnetic Resonance in Medicine, 2010
AbstractThe aim of this work was to establish a new, fast, and robust method of flip‐angle calibration for magnetic resonance imaging of hyperpolarized 3He. The method called flip‐angle measurement with magnetization inversion is based on acquiring images from periodically inverted longitudinal magnetization created using the spatial modulation of ...
J, Rivoire +5 more
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AbstractThe aim of this work was to establish a new, fast, and robust method of flip‐angle calibration for magnetic resonance imaging of hyperpolarized 3He. The method called flip‐angle measurement with magnetization inversion is based on acquiring images from periodically inverted longitudinal magnetization created using the spatial modulation of ...
J, Rivoire +5 more
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Chemical Physics Letters, 1988
Abstract Application of magic angle spinning of small spherical volumes of powder samples at high magnetic field strength B 0 , high power rf irradiation, and careful data processing including resolution enhancement leads to highly resolved two-dimensional 23 Na nutation NMR spectra of aluminosilicate sodalites containing different enclathrated ...
G. Engelhardt +3 more
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Abstract Application of magic angle spinning of small spherical volumes of powder samples at high magnetic field strength B 0 , high power rf irradiation, and careful data processing including resolution enhancement leads to highly resolved two-dimensional 23 Na nutation NMR spectra of aluminosilicate sodalites containing different enclathrated ...
G. Engelhardt +3 more
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Journal of the Physical Society of Japan, 1985
We have examined the effect of magnetic dipolar interaction on the transient nutation in a multi-level NMR system with unequal level spacings. Theoretical analysis shows that, unlike the case of pure Zeeman level systems where level spacings are equal, no magic-angle condition exists and the nutation decay becomes faster monotonously with increasing ...
Hiroshi Hatanaka +2 more
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We have examined the effect of magnetic dipolar interaction on the transient nutation in a multi-level NMR system with unequal level spacings. Theoretical analysis shows that, unlike the case of pure Zeeman level systems where level spacings are equal, no magic-angle condition exists and the nutation decay becomes faster monotonously with increasing ...
Hiroshi Hatanaka +2 more
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The resonance motions of a statically stable Lagrange top at small nutation angles
Journal of Applied Mathematics and Mechanics, 2016zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Chemical Physics Letters, 1991
Abstract 1 H 27 Al cross-polarization magic-angle spinning (PC/MAS) NMR has been used to monitor selectively the non-framework aluminium (Al NF ) species in dealuminated zeolite Y (Si/Al=4.0–14). 27 Al quadrupole nutation with fast (12.5 kHz) MAS and radiofrequency excitation fields up to 220 kHz reveals resonances of 0, 30, 56 and 62 ppm, all of ...
João Rocha +2 more
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Abstract 1 H 27 Al cross-polarization magic-angle spinning (PC/MAS) NMR has been used to monitor selectively the non-framework aluminium (Al NF ) species in dealuminated zeolite Y (Si/Al=4.0–14). 27 Al quadrupole nutation with fast (12.5 kHz) MAS and radiofrequency excitation fields up to 220 kHz reveals resonances of 0, 30, 56 and 62 ppm, all of ...
João Rocha +2 more
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Determination of nutation angles based on processing hourly VLBI observations
PHYSICS OF SPACE : Proceedings of the 51-st All-Russian with international participation student scientific conferenceOver the past 9 years, the IAA RAS has conducted daily observations using the VLBI, with no fewer than six sessions per day. This has allowed exploring the potential for determining nutation angles based on these sessions a The data sessions were processed using a specialized software package developed at the institute, incorporating the global ...
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4983921 Rapid calibration of nutation angles in MRI
Magnetic Resonance Imaging, 1992David M Kramer, Joseph W Carlson
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5416412 Nutation angle measurement during MRI prescan
Magnetic Resonance Imaging, 1995E Slayman Beth +2 more
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The Effect of the Nutation Angle on the Flow in a Precessing Cylinder: Experimental Results
2022Kumar, V. +5 more
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Experimental investigation of the nutation angle's effect on the flow inside a precessing cylinder
2022Kumar, V. +6 more
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