<正>The rule-of-mixture approach has become one of the widely spread ways to investigate the mechanical properties of nano-materials and nano-structures,and it
<正>Based on the mathematical similarity of the axisymmetric eigenvalue problems of a circular plate between the classical plate theory(CPT), the first-order sh
<正>Optimal control system of state space is a conservative system, whose approximate method should be symplectic conservation. Based on the precise integration