We found activity in some cells called the ApEn cells.
其中活跃的细胞称为ApEn细胞。
2
It is difficult to gain stable and credible values of approximate entropy(ApEn) for original signals of short-term high frequency electrocardiogram(SHFECG).
对原始的短时高频心电图（SHFECG）作近似熵计算难以得到稳定、可信的估计值。
3
The variations of the ApEn and the correlation dimension were calculated.