It is shown that all fourteen Bravais lattices can be formed by this technique.
分别在空域和倒格子空间介绍了非共面4光束干涉形成三维周期性微结构,即三维光子晶体的物理基础,证明了固体物理中的所有14种布拉维格均可用非共面4光束干涉来得到;给出了一些制作典型晶格的光束设计;并对相关问题,例如各光束振幅比、偏振态的选取及其对最终结构的影响进行了讨论。
Resistance flexure performance research on concrete reinforced by carbon fiber grid;
碳纤维格栅混凝土抗弯性能研究
The energy dissipations of flexible fiber-and fiber grid-reinforced concretes were tested and some parameters signifying the static and dynamic properties of specimens were obtained.
主要从试验的角度分析柔性纤维与纤维格栅混凝土能量耗散的比较。