A cold roll-bonding process was applied to fabricate an AA1050/AA6061/AA1050 multi-layer sheet.Three Al sheets in which an AA6061 sheet is inserted inside two AA1050 sheets of 2 mm thickness, 40 mm width and 300 mm length were stacked up after surface treatment, and the material was then reduced to a thickness of 1.0 mm by multi-pass cold rolling.T
Abstract This paper introduces the regular decoupling field to study the existence BOX and uniqueness of solutions of two-point boundary value problems for a class of ordinary differential equations which can be derived from the maximum principle in optimal control theory.The monotonicity conditions used to guarantee the existence and uniqueness of
With the dramatic prevalence of coronas and the reduction of mourning ceremonies for the deceased or their complete abolition, and the transfer of as many of these mourning rituals to cyberspace as possible, This problem arose for the researcher, to what extent have the survivors of the deceased been able to gain a sense of sympathy and healing for
Jiang Fang,1 Handong Wang,1 Jian Zhou,2 Wei Dai,2 Yihao Zhu,3 Yuan Zhou,2 Xiaoliang Wang,3 Mengliang Zhou3 1Department of Neurosurgery, Jinling Hospital, School of Medicine, Southeast University, Nanjing, China; 2Department of Neurosurgery, Jinling Hospital, Jinling Clinical Medical College, Nanjing Medical University, Nanjing, China; 3Department o