pulse-width recording

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。

The pulse crowding effect is analysed by circular mode of magnetization in high density longitudinal magnetic recording

用园形磁化模式分析纵向高密度磁记录中的脉冲密集效应

Basing on theory of noise it is obtained detection equation of neutron streak image tube, from which minimal detectable neutron yield threshold of neutron pulse is induced. Also the influence of sensitivity of recording system on the detection threshold is discussed.

本文从噪音理论出发导出了中子扫描变象管的探测方程，从而求得了中子扫描变象管可探测的最小脉冲中子产额，而且讨论了记录系统灵敏度对探测阈的影响。