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Mostrando ítems 1-10 de 2027
Disequilibrium, complexity, the Schottky effect, and q-entropies, in paramagnetism
(Elsevier Science, 2017-12)
We investigate connections between statistical quantifiers and paramagnetism. More concretely, we apply the notions of (i) disequilibrium and (ii) statistical complexity, to a paramagnetic system of non-coupled dipoles. ...
Paramagnetic Meissner Effect and Current Flow in YBCO Nanofiber Mats
(2021-08-01)
Microstructural and magnetic characterizations of YBa2Cu3O7-δ nanowire fabric-like samples were performed. Fabric-like ceramic superconductors are nanoporous materials and can be applied, e.g., in magnetic shielding, since ...
Measuring the solubility product constant of paramagnetic cations using time-domain nuclear magnetic resonance relaxometry
(Elsevier B.V., 2015-07-01)
The use of time-domain NMR relaxometry is already well established for determining the concentration of paramagnetic cations. Paramagnetic cations have unpaired electrons, and in aqueous solutions, they interact with ...
Paramagnetic nanoparticles as potential MRI contrast agents: characterization, NMR relaxation, simulations and theory
(Springer, 2012-12)
Object Paramagnetic nanoparticles, mainly rare earth oxides and hydroxides, have been produced these last few years for use as MRI contrast agents. They could become an interesting alternative to iron oxide particles. ...
Electric and magnetic properties of polymer electrolyte/carbon black composites
(1998-12-01)
Measurements of 1H Nuclear Magnetic Resonance (NMR) relaxation times, Electron Paramagnetic Resonance (EPR) and AC Impedance Spectroscopy (IS) are reported for composites based on PEO8:LiClO4 and carbon black (CB), prepared ...
EPR of gamma-induced paramagnetic centers in tellurite glasses
(ELSEVIER SCIENCE BV, 2010)
Intrinsic paramagnetic responses were observed in the 60TeO(2)-25ZnO-15Na(2)O and 85TeO(2)-15Na(2)O mol% glasses, after gamma-irradiation at room temperature: (1) a shoulder at g(1) = g(parallel to) = 2.02 +/- 0.01 and an ...
Direct electron paramagnetic resonance monitoring of the peptide synthesis coupling reaction in polymeric support
(Elsevier B.V., 2006-06-14)
This work demonstrates, for the first time. a time-resolved electron paramagnetic resonance (EPR) monitoring of a chemical reaction occurring in a polymeric structure. The progress of the coupling of a N-alpha-tert-butyl ...