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根系吸水模型参数的混合遗传算法估算方法(Inverse Method Estimating Root Water Uptake Model Parameters Using Hybrid Genetic Algorithms)
根系吸水模型 参数优化 混合遗传算法
2009/9/11
构建了遗传算法与Levenberg-Marquardt算法相结合的混合遗传算法,用于求解根系吸水模型参数。分别进行数值试验和棉花根系吸水试验对混合遗传算法求解精度进行验证。数值试验表明,采用混合遗传算法优化求解根系吸水模型参数的优化值具有较高的精度,含水率资料的时间步长和空间步长对根系吸水模型参数的优化精度有较大影响,在实际中时间步长可取值5~10d,空间步长取值5~10cm。对室内棉花根系吸水进...
Model parameters of growth curves of three meat-type lines of Japanese quail
quail growth curve Richards function nonlinear model parameter comparison
2015/6/1
This study was focused on a comparison of the growth characteristics and parameters of three meat-type lines of Japanese quail. The body weight data of wild-type, dotted-white and extended-brown quail...