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1)  differential mode delay (DMD)
差分模式延迟
1.
The differential mode delay (DMD) test shows that this scrambling can reduce the split of optical pulse and improve the transmitting characteristic of multimode fiber.
对光纤进行的差分模式延迟 (DMD)测试表明 ,扰动在一定程度上可以改善光纤中脉冲的分
2)  differential delay
差分延迟
3)  differential group delay
差分群延迟
1.
The difficulty of solving PMD lies in its randomness of differential group delay (DGD) between the principal states of polarization (PSP) and the change.
PMD问题的最大困难在于差分群延迟(DGD)和偏振主态(PSP)变化的随机性。
4)  differential delay heterodyne
差分延迟外差
5)  grouped-and-delayed broadcasting mechanism
分组延迟传播模式
1.
The grouped-and-delayed broadcasting mechanism for optimum information is applied to particle swarm optimization to make sufficient search in optimization space and to meet the requirement of general convergence,and the algorithm is improved based on the modified particle algorithm in this paper.
在改进型微粒群算法基础上,考虑对寻优空间充分搜索及算法总体收敛的需要,将信息的分组延迟传播模式应用于微粒群算法。
6)  delayed difference equation
延迟差分方程
1.
Analysis and dynamic prediction of longitudinal ground settlements due to shield tunneling based on delayed difference equation;
盾构施工纵向地表沉降分析及基于延迟差分方程的动态预报
补充资料:差分模式
分子式:
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性质:在红外光谱分析中,当所记录的某特征吸收,与两个振动频率能级间的能量差,恰好对应一致,则称为差分模式。此外,如果某个处于受激振动态的分子,又吸收(或释放)另外的辐射能,其振动模式则变更为另一振动能级,最后所测吸收应为两者之代数和。

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