Signal intensity in diffusion NMR experiments obeys the following law: ln(I/I0) = −γδG(∆ − δ/3) D, where I = intensity at a given G, I0 = Intensity at G = 0, γ = Gyromagnetic ratio (for H: γ = 2.675 × 10T−1s−1), δ = Length of diffusion gradient, ∆ = Diffusion shift, G = Gradient field intensity, and D = Diffusion coefficient.
Those may be attributed to two reasons: first, the thermal process releases the stress of weak Si-Si bonds to decrease the density of the band tail stats; second, the H diffusion shifts the weak Si-Si bonds to dangling-bonds with H saturation.
The release mechanism of CBZ from matrix tablet formulations follows non-Fickian diffusion shifting to Case II by the increase of HPMC content, indicating significant contribution of erosion.
In the diffusion of Shift s, we get a sense of the legacies of imperialism and global conflict, and the bitter changes in working conditions, yet there is an eery homogeneity about these willfully different perspectives.
It was found that the coal mining technological paradigm followed a three-stage trajectory; competition, diffusion, and shift; in accordance with the traditional technological paradigm S-curve, and underground coal gasification (UCG) related technologies were identified as the main development direction for coal mining technologies.
The underlying causes of this entropy are as profound as powerful - deep demographic trends, a series of unprecedented technological disruptions, power diffusion and shift of power - but they come to the surface through economic, social, political or international crises.
Generalising the particle shifting approach of Xu et al. (2009) [31], the algorithm is based upon Fick's law of diffusion and shifts particles in a manner that prevents highly anisotropic distributions and the onset of numerical instability.
The porosity of the electrode was found to decrease the rate of desorption of the intermediate and the product and delay their diffusion by shifting it from a Fickian regime in the electrolyte bulk to the Knudsen regime in the film pores.
Then, (Fig. 7) Klong, Kshort and the subdiffusion exponent remain constant, while anomalous diffusion is shifted towards longer times with increasing a.
For hydrogen/air flames, the neutral preferential-diffusion condition shifted toward fuel-rich conditions with increasing pressure.
During acetonitrile diffusion experiments, a shift from hydrogen-bound to free carbonyl groups in the hard segment domains occurred and hydrogen-bound CN and NH peaks appeared suggesting that acetonitrile is solvating to the hard segments in the polymer.
