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Advances in engineering nanoparticles for magnetic particle imaging (MPI). [PDF]
Sci AdvVelazquez-Albino AC +2 more
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FFC NMR relaxometer with improved magnetic field uniformity
, 2015 Roque, António +3 more
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Pulsed MPI Relaxometry of Brownian and Néel Field-Dependent Relaxation in Superparamagnetic Magnetite Nanoparticles Confirm Theory and Simulations. [PDF]
SmallSaayujya C +12 more
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An Autographic Stress Relaxometer
Review of Scientific Instruments, 1948An autographic stress relaxometer has been designed and constructed for studying the relaxation of the stress of a polymer film elongated to constant length. The force-measuring element is a linear variable differential transformer which measures the distortion of a flexible steel ring and drives a recorder.
Stein Richard S
exaly +2 more sources
Microcontroller of the power supply of a fast field cycling relaxometer
2018 IEEE International Conference on Industrial Technology (ICIT), 2018This paper describes aspects of the implementation of a digital control system to be used in a Fast Field Cycling (FFC) Nuclear Magnetic Resonance relaxometer (NMR). This technique is very demanding from the point of view of experimental equipment requiring a modulation of the magnetic flux density, and that, the magnetic flux density cycles between ...
P J Sebastiao, Duarte M Sousa
exaly +2 more sources
A Recording Stress Relaxometer
Review of Scientific Instruments, 1952A recording stress relaxometer is described. This instrument measures the lateral deflection of bowed steel strips in the load-measuring element. The deflection is measured electrically by means of a linear differential transformer coupled to a recording potentiometer through an ac electronic voltmeter.
exaly +2 more sources
Simulation study of a novel Relaxometer shield design
2015 5th International Workshop on Magnetic Particle Imaging (IWMPI), 2015Developing tracers for MPI and related applications requires a thorough understanding of underlying relaxation processes. In X-Space MPI reconstruction, relaxation has a profound impact on the image through a decrease in SNR and direction-dependent blurring.
Mark Griswold, Patrick Goodwill
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Desktop fast-field cycling nuclear magnetic resonance relaxometer
Solid State Nuclear Magnetic Resonance, 2010In this paper a new type of Fast Field Cycling (FFC) Nuclear Magnetic Resonance (NMR) relaxometer with low power consumption (200W) and cycle to cycle field stability better than 10(-4) is described. The new high-permeability magnet was designed to allow for good magnetic field homogeneity and allows for the sample rotation around an axis perpendicular
G D Marques
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Current source of a FFC NMR relaxometer linearly controlled
2013 15th European Conference on Power Electronics and Applications (EPE), 2013A Fast Field Cycling (FFC) Nuclear Magnetic Resonance (NMR) relaxometer combines optimized magnets (low volume and power losses) and power apparatus that integrate power supplies and control methods. The magnet of a FFC NMR relaxometer determines the requirements of the main power supply.
E Margato
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Using NMR Relaxometer in the Study of Unconventional Rocks Characteristics
SPE Russian Oil and Gas Exploration & Production Technical Conference and Exhibition, 2014Abstract NUCLEAR MAGNETIC RESONANCE (NMR), NMR RELAXOMETER, STRUCTURE OF VOID SPACE, "FRITILLARY", "WEATHERING CRUST", "BAZHENITE" (OIL SHALES), BI-MODAL NMR DISTRIBUTION, ROUTINE CAPILLARY METHODS This paper presents the results of NMR studies of structure of void space of rocks from unconventional reservoirs.
V. Vavilin +3 more
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