In this paper, the age-hardening behavior and phase transformation of Mg-9.2Gd-1.9Y-1.8Zn-0.5Zr alloy were systematically studied. The results showed that the aging strengthening effect of the alloy is significant at 225°C. In under-aging stage, the second phases are mainly nucleation,...

A statistical inference for ruin probability from a certain discrete sample of the surplus is discussed under a spectrally negative Lévy insurance risk. We consider the Laguerre series expansion of ruin probability, and provide an estimator for any of its partial sums by computing the...