random data set

Phase-change random access memory ( PCM) records and erases data by utilizing the thermal effect of the pulse current to make SET or RESET operation in its recording layer with a reversible phase-change structure of giant differential resistance between two phases.

相变存储器是利用脉冲电流的热效应使其记录层发生具有巨大阻值差异的可逆结构相变来记录和擦除数据。

A time series data set is a sequence of random variables indexed by time.

时间序列数据是以时间为指标的一个随机变量序列.

In this thesis, considering the random nature of the whole set of data, unified a-N incremental polynomial fitting method is proposed under the same test conditions to provide a scientific basis for the study of the influence of different stress ratio on the fatigue crack propagation.

本论文采用考虑整套数据的随机特性的a-N数据拟合方法，提出统一a-N递增多项式拟合法，为研究不同应力比R下的疲劳断裂可靠性提供科学的依据。