The exponential model and double exponential model were the most practical and applied models for secondary clarifier simulation.

在二沉池模拟中，指数模型和双指数模型较为实用且应用较多。

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This paper presents a simple and effective method for fitting and analysis of the kinetic model of double exponential fluorescence decay.

本文提出了一种对双指数荧光衰减进行拟合及分析的较简便的有效方法。

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First, we obtain the empirical Bayesian estimator of the scale parameter for the double exponential distribution based on LINEX loss function and the convergence rate of the estimate.

首先利用非对称的LINEX损失函数对双指数分布族刻度参数进行了经验贝叶斯估计，并讨论了该估计的性质，给出了收敛速度。

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This exponential increase would not, sadly, double everyone's wealth every two years.

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