Results 21 to 30 of about 1,314,774 (198)
Spin relaxation and decoherence of two-level systems [PDF]
, 2005 We revisit the concepts of spin relaxation and spin decoherence of two level (spin-1/2) systems. From two toy-models, we clarify two issues related to the spin relaxation and decoherence: 1) For an ensemble of two-level particles each subjected to a ...
Sun Yin +4 more
core +2 more sources
Dynamic properties of NH_3CH_2COOH·H_2PO_3 ferroelectric
Condensed Matter Physics, 2018 Using a modified pseudospin model of NH_3CH_2COOH·H_2PO_3 ferroelectric taking into account the piezoelectric coupling with strains ε_i, ε_4, ε_5 and ε_6 within Glauber method in two-particle claster approximation, we have calculated components of ...
I.R. Zachek +3 more
doaj +1 more source
Dielectric Study of Lithium and Sodium Borophosphate Glasses
Communications, 2017 Ionic conductivity and dielectric properties such as dielectric permittivity and loss tangent for the samples of lithium and sodium borophosphate glasses were investigated using the electrical conductivity measurements in the range of frequency from 10 ...
Jana Mizerakova +2 more
doaj +1 more source
Viscous hydrodynamics relaxation time from AdS/CFT [PDF]
, 2007 We consider an expanding boost-invariant plasma at strong coupling using the AdS/CFT correspondence for N=4 SYM. We determine the relaxation time in second order viscous hydrodynamics and find that it is around thirty times shorter than weak coupling ...
A. Ashtekar +6 more
core +2 more sources
Beilstein Journal of Nanotechnology, 2018 A new bisimidazolium salt with dodecyl sulfate as counterion has been designed and prepared. This salt shows a SmA phase that is stable at room temperature. The new ionic liquid crystal (ILC) was characterized by 1H NMR, 13C NMR and IR spectroscopy.
Doina Manaila Maximean +2 more
doaj +1 more source
Analysis of a Hyperbolic Heat Transfer Model in Blood-perfused Biological Tissues with Laser Heating [PDF]
Journal of Applied and Computational Mechanics, 2022 This paper proposes a hyperbolic heat transport model for a homogeneously perfused biological tissue irradiated by a laser beam. In particular, involving two local energy equations, one for the blood vessel and the other for the tissue, a non-Fourier ...
C.F. Munafo, P. Rogolino
doaj +1 more source
Dynamical Renormalization Group Approach to Quantum Kinetics in Scalar and Gauge Theories [PDF]
, 2000 We derive quantum kinetic equations from a quantum field theory implementing a diagrammatic perturbative expansion improved by a resummation via the dynamical renormalization group.
A. Bochkarev +101 more
core +2 more sources
Quantitative Cross Polarization Magic-Angle Spinning NMR Spectroscopy in Solids
Chinese Journal of Magnetic Resonance, 2020 The combination of cross polarization and magic-angle spinning (CP/MAS), is a routine technique for signal enhancement in solid-state nuclear magnetic resonance (NMR) spectrum. With CP/MAS, the acquisition efficiency of solid-state NMR experiments can be
LIANG Li-xin, DENG Feng, HOU Guang-jin
doaj +1 more source
Dielectric Relaxation Spectroscopy and Synergy Effects in Epoxy/MWCNT/Ni@C Composites
Nanomaterials, 2021 The dielectric/electric properties of the Ni@C (carbon-coated Ni)/epoxy composites and Ni@C/MWCNTs (multi-walled carbon nanotubes)/epoxy composites loaded with fixed MWCNTs amount just below the percolation threshold (0.09 vol.%) and Ni@C at different ...
Darya Meisak +4 more
doaj +1 more source
Nuclear magnetic resonance analysis of freeze-thaw damage in natural pumice concrete
Materiales de Construccion, 2016 This paper presents an analysis of the damage propagation features of the pore structure of natural pumice lightweight aggregate concrete (LWC) under freeze-thaw cyclic action.
Xiaoxiao Wang +4 more
doaj +1 more source