Relaxation time
Time-domain quantification of amplitude, chemical shift, apparent relaxation time T2, and phase by wavelet-transform analysis. Application to biomedical magnetic resonance spectroscopy.
... WT is presented here as a quantification method in biomedical MRS with special attention to the FID signal characteristics. FID signal considered as a sum of damped sinusoids is analyzed by WT and decomposed to its ...
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Analysis of Relaxation Time in Random Walk with Jumps
... In the present work we study the relaxation time or equivalently the spectral gap of the random walk with jumps on a general weighted undirected graph. The random walk with jumps can be viewed as a random ...
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Primal-dual interior point optimization for a regularized reconstruction of NMR relaxation time distributions
... a relaxation time distribution ( T 1 , T 2 or T 1 - T 2 ) corresponds to a numerical inversion of a Laplace transform, which is known to be an ill-posed in- verse problem ...
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Bismuth content dependence of the electron spin relaxation time in GaAsBi epilayers and quantum well structures
... spin relaxation time with the bismuth content is again clearly ...spin relaxation time decreases by about a factor of 10 when the bismuth fraction is increased from ...spin relaxation ...
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Transversal relaxation time measured by MRI reflects brain amyloidosis in young APP/PS1 transgenic mice
... T2 relaxation time was performed in the subiculum, one of the first brain areas to develop A plaques in the studied transgenic model (14), and in the temporal association cortex in which no amyloid deposits ...
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Multiple-Relaxation-Time Lattice Boltzmann scheme for fractional advection–diffusion equation
... b Framatome ANP, Département Développement Codes & Méthodes – Tour AREVA, 1 Place Jean Millier, F-92400 Courbevoie, France. c Université d’Avignon et des Pays de Vaucluse, UMR 1114 EMMAH, 84018 Avignon Cedex, France. ...
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The relaxation time of a chiral quantum R-L circuit
... In this letter we report on phase-resolved impedance measurements of a quantum R-L circuit in the edge state regime at GHz frequency and milli-Kelvin temperatures. With increasing QPC transmission, dc-like conductance ...
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The effect of coating of Fe3o4/silica core/shell nanoparticles on T2 relaxation time at 9.4 T
... / La version de cette publication peut être l’une des suivantes : la version prépublication de l’auteur, la version acceptée du manuscrit ou la version de l’éditeur. For the publisher’[r] ...
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Controlling spin relaxation with a cavity
... Spin relaxation is the process by which a spin reaches thermal equilibrium by exchanging an energy quantum ¯ hω s with its environment (ω s being its resonance frequency) for example in the form of a photon or a ...
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Enthalpy Relaxation in Phosphorus-Containing Dendrimers
... discrete Fourier transform 13 permits one to extract an in-phase signal 〈 Q ˙ 〉IN (called “reversing signal”), to the cyclic response. The out of phase signal, 〈 Q ˙ 〉OUT , (also called “nonreversing signal”) is obtained ...
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La relaxation à la maternelle en Guadeloupe : un outil pour favoriser les apprentissages
... b) La relaxation et la socialisation Domaine : Agir, s’exprimer, comprendre à travers l’ activité physique : Coordonner ses gestes avec ceux des autres. Au cours d’une séance d’activité physique, les élèves ont ...
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Méthodes de relaxation pour les équations de Navier-Stokes compressibles
... Notre méthode est une extension de la méthode de relaxation de l'énergie intro- duite par Coquel et Perthame [CP98 ] pour résoudre les équations d'Euler munies d'une loi de pression générale. Pour notre méthode, ...
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Femtosecond time-resolved Electronic Relaxation Dynamics in Tetrathiafulvalene
... eV). Afterward the photoelectron energy distribution changes only in intensity. This is in contrast to most time-resolved photoelectron spectroscopy studies done in large systems. In general, the photoelectron ...
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An analysis of Schwarz waveform relaxation domain decomposition methods for the imaginary-time linear Schrödinger and Gross-Pitaevskii equations
... The plan of the paper is the following. First, we develop in Section 2 some analytical estimates of the convergence rate for both CSWR and OSWR two domains decomposition methods for the linear Schr¨ odinger (with ...
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La relaxation en psychiatrie adulte : quelles spécificités en psychomotricité ?
... de relaxation en psychomotricité s’axe principalement sur la fonction tonique et le schéma corporel/ image du corps, qui en font sa ...de relaxation, et celle de Madame ...de relaxation à chaque ...
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Relaxation du silicium amorphe étudiée par nanocalorimétrie
... For our experiments, a thin layer of a-Si is deposited on the membrane of two calorimeters, on the opposite side of the metallic strip (Fig. One calorimeter is used as is and serves as a[r] ...
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Entropy and relaxation processes Motivation
... The documents may come from teaching and research institutions in France or abroad, or from public or private research centers.. L’archive ouverte pluridisciplinaire HAL, est destinée au[r] ...
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Modélisation des phénomènes de relaxation diélectrique par Réalisation Diffusive
... En génie électrique certains dispositifs mettant en jeu des phénomènes magnétiques et diélectriques ont un comportement d’O.P.D. La prise en compte des pertes par courants de Foucault dans les matériaux magnétiques ...
4
Enthalpy Relaxation in Phosphorus-Containing Dendrimers
... ning calorimetry permits one to analyze the evolution of glass transition temperature as a function of molec- ular weight, not only in cooling but also in heating rate. Furthermore, physical aging experiments have been ...
7
Relaxation des contraintes dans les alliages Zinc-Cuivre-Titane
... Figure 11 : Comparaison entre les lois puissance et logarithmique. Figure 12 : puissance en fonction de la contrainte initiale pour Variation de l’exposant, m, de la loi différentes températures. Cette représentation ...
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