Now showing items 91-100 of 102
Transient Decay of Longitudinal Magnetization in Heterogeneous Spin Systems Under Selective Saturation. III. Solution by Projection Operators
(Elsevier, 1993-10-01)
A general method of solving equations governing the transient response of heterogeneous spin systems to continuous and pulsed RF saturation using the projection-operator technique is outlined. An effective rate equation ...
Magnetization transfer effects on the efficiency of flow-driven adiabatic fast passage inversion of arterial blood
(John Wiley & Sons, Ltd., 2007-12)
Continuous arterial spin labeling experiments typically use flow-driven adiabatic fast passage inversion of the arterial blood water protons. In this article, we measure the effect of magnetization transfer in blood and ...
Transient decay of longitudinal magnetization in heterogeneous spin systems under selective saturation
(Elsevier, 1992-10-01)
The transient behavior of the longitudinal magnetization of the mobile protons in aqueous heterogeneous materials is investigated both theoretically and experimentally when selective saturation is applied by off resonance, ...
57Fe Mossbauer investigation of oriented single-crystal and polycrystalline PbFe12O19
(Elsevier, 1991-04-02)
57Fe Mossbauer spectra of PbFe12O19 have been obtained at 295 K on polycrystalline and single-crystal thin sections oriented with the c-axis parallel and perpendicular, respectively, to the [gamma]-ray propagation direction. ...
Phase correction in holographically produced gratings
(Elsevier, 1974-10)
Several technques for producing holographic optical elements that are free from the inherent phase errors of their substrate irregularities are given.
Long range, high resolution laser radar
(Elsevier, 1994-01-15)
A high energy, chirped pulse laser was used to demonstrate long range, high resolution radar. A broadband nanosecond chirped pulse propagated to a target, and upon compression sub-millimeter surface resolution was obtained. ...
Across- vendor standardization of semi- LASER for single- voxel MRS at 3T
(Wiley Periodicals, Inc., 2021-05)
The semi- adiabatic localization by adiabatic selective refocusing (sLASER) sequence provides single- shot full intensity signal with clean localization and minimal chemical shift displacement error and was recommended ...
An efficient R1Ï dispersion imaging method for human knee cartilage using constant magnetization prepared turbo- FLASH
(Springer Science & Business MediaWiley Periodicals, Inc., 2021-06)
Characterization of anisotropic T2W signals from human knee femoral cartilage: The magic angle effect on a spherical surface
(Wiley Periodicals, Inc.The Royal Society of Chemistry, 2021-07)
The aim of the current study was to propose a generalized magic angle effect (gMAE) function for characterizing anisotropic T2W signals of human knee femoral cartilage with a spherical surface in clinical studies. A gMAE ...