Double self-adaptive fuzzy PID algorithm-based control strategy was proposed to construct quasi-cascade control system to control the speed of the acid-pickling
The aim of this investigation is to reveal the influence of rare earths (RE) addition on mechanical properties of plasma nitrocar-burized 17-4PH steel. The nitr
The aftershock activity of the May 12, 2008 Wenchuan Ms8.0 Earthquake Sequence shows an obvious segmented feature. Most of the large aftershocks were distribute