<正>The dynamic behavior of two parallel symmetry cracks in magneto-electro-elastic composites under harmonic anti-plane shear waves is studied by Schmidt metho
<正>Based on the theories and approaches in biomechanics, the mechanism and pattern of niche construction were discussed systematically. Through establishing th
<正>Polycrystalline ceramics have heterogeneous meso-structures which result in high singularity in stress distribution. Based on this, a progressive fragment m