Low stacking fault energy face centered cubic (FCC) materials contain characteristic defect structures. Stacking fault tetrahedral are one of those rare structures that occur under special experimental conditions. For the first time, stacking fault tetrahedral were observed in Fe-30Mn-3Al-3Si twinning induced plasticity (TWIP) steel. Their presence resulted from a quenching heat treatment.

Without knowing the speech act functions, it would be difficult to make correct requests in a language. Studies in pragmalinguistics have shown that conventionally direct and indirect requestive patterns are perceived differently in different speech communities. This study investigates the perception of the requestive speech acts by Persian native speakers to determine the socially appropriate ...

background: nursing project management is widely used in different aspects of the society. however, whether the nursing project management can control the infections in the operation room (or) is rarely reported. we evaluated the outcomes of surgical patients after implementing a nursing project management program to provide new scientific ways to manage the or infections. methods: overall, 382...