Longitudinal dispersion coefficient( D =0 003 6 m 2/d),adsorption coefficient( K d=0 19 cm 3/g)and biodegradation coefficient( K =0 68 d -1 )were obtained through curve fitting and parameter estimation.
实验结果经线性拟合和参数估算 ,得到弥散系数D =0 0 0 3 6m2 d ,分配系数Kd=0 19cm3 g ,降解系数K =0 68d- 1 。
Results Nonlinear regression parameter estimation was used for the association constant measurement of glimepiride to both primary and secondary sites, which were 5.1 (μmol·L-1)-1 and 1 for K_1 and n_1, and 0.017 (μmol·L-1)-1 and 7 for K_2 and n_2, respectively.
Parameter estimation in linear regression models for longitudinal contaminated data
The parameter estimation and the coefficient of contamination for the regression models with repeated measures are studied when its response variables are contaminated by another random variable sequence.
In this article, we developed a new algorithm for eigenspace-based adaptation restricting eigenvoices in clustered subspaces, and maximum likelihood (ML) criterion was replaced with maximum aposteriori (MAP) criterion for better parameter estimation.
That parameter estimation strategy ensures that the norm of the covariance matrix is always finitely upper-bounded without using adaptation freezing techniques over a prescribed norm threshold.
Convergence is demonstrated, convergence rate is estimated, and parameter estimation accuracy is derived.