Based on the law of material deformation,a formula has been derived to determine the position of neutral layer in the coiling strip, there for the tooth pitch of dynamo stator cores coiling technology can be decided.
依据材料变形规律，推算出卷铁心变形中性层的长度，从而得到发电机定子铁心卷叠工艺冲槽齿节距的计算公式。
Self-adapting phase unwrap method is provided to solve high threshold problem in frequency estimation.
首先讨论了基于相位差分的Kay估计器及频率测量的Cramer-Rao界,针对Kay法中归一化频率绝对值较高时的高信噪比(SNR)阈值问题,提出了一种自适应门限相位解卷叠方法。
A systematical observation of the prefoliation features in 63 species in 13 sections in 13 genera of Magnoliaceae was carried out.
系统观察研究了木兰科 13属 13组 63种植物幼叶卷叠式 。
