A lognormal distribution model was used to fit the mite species abundance.
革螨种多度分布用对数正态分布模型拟合。
In the statistical analyses, the result shows that the lognormal distribution model is more suitable for the index of deflection.
同时从统计分析中可知，对数正态分布模型更适合于弯沉指标。
Thus, when the permeability of 50% probability and the coefficient of variation for lognormal distribution are known, one can establish a definite numerical model of permeability plane distribution.
这样，知道模型的渗透率对数正态分布概率50%处渗透率和变异系数，就可以建立起确切的渗透率平面模型。
By analyzing and comparing the calculated results, the effectiveness about the model of the 3-parameter lognormal distribution is demonstrated.
通过对生成结果的分析比较，初步论证了文中所推导的显式三参数对数正态分布模型的有效性。
This paper does some experiments and analysis on the single pixel gray value of natural images. We find that lognormal distribution can be used for the coarse and simple model of single pixel gray.
本文针对自然图象中单像素灰度值的统计规律进行实验和分析，发现对数正态分布可以对之进行粗略、简单的建模。
The numerical results show that the infrared LED life is characterized by lognormal distribution, and the accelerated model meets the inverse power law.
数值结果表明，红外LED 的寿命服从对数正态分布，其加速模型符合逆幂定律。
The numerical results show that the infrared LED life is characterized by lognormal distribution, and the accelerated model meets the inverse power law.
数值结果表明，红外LED 的寿命服从对数正态分布，其加速模型符合逆幂定律。
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