X2Mn1+xSn1-x-based Heusler alloys have drawn more and more attention as the high performance multiferroic materials ......

建筑悬挂结构分为核筒式与框架式。本文仅讨论框架稳定问题，把悬挂部分重力简化为框架柱轴向结点力，变为第一类稳定问题。......