The temperature and wavenumber dependence of the extended X-ray absorption fine-structure (EXAFS) oscillation hexagonal close-packed (h.c.p.) crystals have been calculated analyzed under effect non-ideal axial ratio c / a . anharmonic EXAFS is presented in terms Debye–Waller factor using cumulant expansion approach up to fourth order. An effective calculation model expanded developed from many-...

In order to access the severity of degradation in a water tree affected cable, it is necessary to obtain a physical representation of the insulation. This is especially the case when trying to determine the risk of failure of the cable, or the remaining life, which is dependant on the length of the longest water tree in the insulation. Generally, there has not been a large effort found in publi...

A derivation of the relation between the vacancy formation energy E,, the migration energy E, and the Debye temperature 0c is presented. In the Debye model, the relation between E, and Bc follows directly from the “dynamical” form of diffusion theories. The relation between E, and Bc is obtained for solids obeying a corresponding states law. The Debye temperature appearing in the derived expres...

Shear-mechanical and dielectric measurements on the two monohydroxy (monoalcohol) molecular glass formers 2-ethyl-1-hexanol and 2-butanol close to the glass-transition temperature are presented. The shear-mechanical data are obtained using the piezoelectric shear-modulus gauge method covering frequencies from 1 mHz to 10 kHz. The shear-mechanical relaxation spectra show two processes, which fol...

To identify the parameters of extended Debye model XLPE cables, and therefore evaluate insulation performance samples, sparsity-promoting dynamic mode decomposition (SPDMD) method was introduced, as well basics processes its application were explained. The amplitude vector based on polarization current first calculated. Based non-zero elements vector, number branches including coefficients time...

A new thermodynamically self-consistent (TSC) method, based on the quasi-harmonic approximation (QHA), is used to obtain the Debye temperatures of LiFePO4 (LFP) and FePO4 (FP) from available experimental specific heat capacities for a wide temperature range. The calculated Debye temperatures show an interesting critical and peculiar behavior so that a steep increase in the Debye temperatures is...

a r t i c l e i n f o a b s t r a c t The photoionization processes of excited hydrogen atoms in plasma environments are investigated using the method of complex coordinate rotation. The standard Debye–Hückel model and modified Debye– Hückel model are adopted to describe the plasma screening effects. The photoionization cross sections of plasma-embedded excited hydrogen atoms varied with differ...