Phononic crystals Vibration band gap Crystal lattice Symmetry Primitive cell; 声子晶体;振动带隙;晶格;对称性;原胞;
It is proved that the volume of Brillouin zone and that of the reciprocal lattice primitive cell are equal for bcc lattice and fcc lattice in three dimensions by a simple mathematical method. 用简单数学方法就体心立方晶格和面心立方晶格证明了三维情况下布里渊区体积等于倒格子原胞体积。
Once inside, the plasmids trigger the cells to revert to a more primitive cell state that can be coaxed into various cell types. 一旦携带外源基因的质粒进入到细胞内,这些质粒就可以触发细胞转化为可以被诱导为多种细胞类型的更为原始的细胞状态。
The proof about the equation of volume of the n-th Brillouin zone and the volume of reciprocal's primitive cell 关于第n布里渊区体积等于倒格子原胞体积的证明
In additional, modern medical research consider that the spleen can supply the primitive cell and promote the reproduction of the pancreas'cell. 西医学研究认为,脾脏可提供成体前体细胞,促进胰岛细胞再生。