We present a formula for thermal transport in the bulk of Bose systems based on quantum Boltzmann equation (QBE). First, starting from kinetic and using Born approximation impurity scattering, we derive QBE provide subjected to temperature gradient. Next, apply magnons. Assuming relaxation time focusing linear response regime, show that longitudinal conductivity exhibits different behavior conv...

Birefringence of oxide glass bers drawn from glass melts through an ori ce has been detected previously [1, 2]. This birefringence is a measure of anisotropy in glass structure that can in uence ber performance properties. Birefringence is produced during ber drawing as the ber is rapidly stretched in the viscoelastic glass transition range. The birefringence is \frozen" into the glass during r...

Assessed the effects of particular treatment combinations of relaxation training, temperature, and EMG biofeedback on state-trait anxiety, symptom report, and self-concept. The four groups received one of the following sequences: (a) relaxation training, temperature, and EMG biofeedback; (b) temperature, EMG biofeedback, and relaxation; (c) temperature followed by EMG biofeedback; (d) EMG biofe...

Among the outstanding problems in the theory of supercooled liquids are the reasons for the rapid increase in their viscosity and relaxation times as the temperature is lowered towards the glass transition temperature T g , the non-exponential time dependence of the relaxation, and the possible connection between these two properties. The ferromagnetic Potts model on a square latice is a simple...

Temperature quench echoes are analyzed in terms of the temperature–temperature correlation function in the harmonic approximation, and the resulting expressions are compared with molecular dynamics simulations. The relationship between the time dependence of the echo depth and the density of states is demonstrated for harmonic systems. For a protein, which has significant anharmonicity, the tim...

The dielectric permittivity and loss spectra of the glassy state of 5-methyl-2-hexanol obtained by quenching it from the liquid state has been studied. In one experiment, the spectra were studied at different temperatures as the quenched sample was heated at 0.1 K/min from 105.3 to 160.5 K. In the second experiment, the quenched sample was heated from 77 to 131.6 K and kept at that temperature ...

Using thermometer-based air temperature records for the period 1850–2010, we present empirical evidence for a direct relationship between total solar irradiance (TSI) and the Equator-to-Pole (Arctic) surface temperature gradient (EPTG). Modulation of the EPTG by TSI is also shown to exist, in variable ways, for each of the four seasons. Interpretation of the positive relationship between the TS...

Proton exchange between spin groups of the solid matrix of hydrated granular potato starch and water was studied using the 2D time domain NMR. The proton spin–spin relaxation time T2, and spin–lattice relaxation time T1 (selective and non-selective pulse sequences) were measured at room temperature. The observed spin relaxation results were analysed for exchange assuming a two-site exchange mod...

A certain appeal to the alpha model for turbulence and related viscosity in accretion disks was that one scales Reynolds stresses simply on thermal pressure, assuming driven by a mechanism will attain characteristic Mach number its velocity fluctuations. Besides notion there are different driving angular momentum transport disk, we also find within single instability mechanism, here Vertical Sh...