Study of structural and spectroscopic behavior of Sm3+ ions in lead–zinc borate glasses containing alkali metal ionsSpringer Science and Business Media LLC - Tập 91 - Trang 677-687 - 2017
M. V. Sasi Kumar, S. Babu, B. Rajeswara Reddy, Y. C. Ratnakaram
High luminescence behavior of rare earth inorganic glasses have a variety of uses in the industry. In the past few decades, rare earth ions with characteristic photonics applications are being hosted by heavy metal oxide glasses. Among the rare earth ions Sm3+ ion has features which make it apt for high density optical storage. The authors of the paper have experimented to synthesize Sm3+ doped gl...... hiện toàn bộ
Melnikov analysis and chaos control of nonlinear dispersive KdV equation under external periodic perturbationSpringer Science and Business Media LLC - Tập 89 - Trang 273-279 - 2014
J. L. Yin, Q. Q. Xing, L. X. Tian
The behavior of non-smooth solitary waves switching to chaos is studied. Firstly, we present some singular homoclinic orbits of an unperturbed system. These singular homoclinic orbits correspond to non-smooth solutions. Secondly, we find that the peculiar solitary waves are more likely to be chaos by using the Melnikov theory. Finally, chaos thresholds under different amplitudes and frequencies of...... hiện toàn bộ
Two-dimensional discrete wavelet analysis of multiparticle event topology in heavy ion collisionsSpringer Science and Business Media LLC - Tập 85 Số 1 - Trang 39-44 - 2011
Dremin, I. M., Eyyubova, G. Kh., Korotkikh, V. L., Sarycheva, L. I.
The event-by-event analysis of multiparticle production in high energy hadron and nuclei collisions can be performed using the discrete wavelet transformation. The ring-like and jet-like structures in two-dimensional angular histograms are well extracted by wavelet analysis. For the first time the method is applied to the jet-like events. The jet positions are located quite well by the discrete wa...... hiện toàn bộ
Shock wave formation in hot nuclear matterSpringer Science and Business Media LLC - Tập 85 - Trang 793-796 - 2011
F. S. Navarra, D. A. Fogaça, L. G. Ferreira Filho
Assuming that nuclear matter can be treated as a perfect fluid, we study the propagation of perturbations in the baryon density at high temperature. The equation of state is derived from the non-linear Walecka model. The expansion of the Euler and continuity equations of relativistic hydrodynamics around equilibrium configurations lead to the breaking wave equation for the density perturbation. We...... hiện toàn bộ
Transverse shear viscosity to entropy density for the general anisotropic black brane in Horava–Lifshitz gravitySpringer Science and Business Media LLC - - 2019
Mehdi Sadeghi
In this paper, we calculate the ratio of transverse shear viscosity to entropy density for the general anisotropic black brane in Horava–Lifshitz gravity. There is a well-known conjecture that states this ratio should be larger than $$\frac{{1}}{4\pi }$$. The ratio of shear viscosity to entropy density is proportional to the inverse square coupling of quantum thermal field theory, $$\frac{{\eta }}...... hiện toàn bộ
Effect of ageing on electrical properties of Fe-doped CuO thin films deposited by spin coating techniqueSpringer Science and Business Media LLC - Tập 97 - Trang 1707-1716 - 2022
Saadet Yildirimcan
The effect of ageing on electrical properties of Fe-doped CuO thin films was investigated in this study. The pure and Fe (2, 4, 6; mol%)-doped CuO films were prepared by using spin coating technique and characterized by using X-ray diffractometer (XRD), field emission-scanning electron microscopy (FE-SEM), energy-dispersive X-ray spectroscopy (EDX), UV–Vis spectrophotometer and two-probe technique...... hiện toàn bộ