Characteristics of double-pass backward (DPB) superfluorescent fiber source (SFS) manufactured by heavily doped erbium fiber are investigated.
研究了高掺杂铒光纤构成的双程后向结构超荧光光源输出特性,高掺杂铒光纤在制作超荧光光源方面具有输出功率高和带宽宽的优点。
we derive the backward equation satisfied by the transient distribution of the queue length of this system and prove that the distribution is the minimal nonnegative solution for the backward equation.
研究了顾客到达时间间隔和服务时间都服从一般分布的最小队长排队系统,得到了队长的瞬时分布所满足的向后方程,证明了队长的瞬时分布是向后方程的最小有界非负解。
The length ofdirectional runs-based strokes are extracted.
根据方向行程长度提取出汉字的笔画,对所得笔画建立包围盒。