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基于BP神经网络的沉积物(生物膜)主要活性组分
引用本文:郭倩倩,高茜,王晓丽,李鱼.基于BP神经网络的沉积物(生物膜)主要活性组分[J].吉林大学学报(理学版),2011,49(2):346-352.
作者姓名:郭倩倩  高茜  王晓丽  李鱼
作者单位:1. 华北电力大学 能源与环境研究院, 北京 102206; ,2. 吉林大学 环境与资源学院, 长春 130012
基金项目:国家重点基础研究发展计划973项目基金
摘    要:利用MATLAB建立沉积物(生物膜)主要活性组分(铁氧化物、 锰氧化物和有机质)吸附Cu/Zn过程的BP神经网络模型, 模型训练集均方差、 训练
集偏差、 验证集均方差和测试集偏差分别为0.002 2(0.001 5), 1.542 9×10-6(2.648 4×10-6), 0.087 1(0.069 2)和0.018 7(0.035 7). 所建模型能够反映沉积物(生物膜)主要活性组分含量梯度变化时吸附Cu/Zn的规律, 并且初步揭示了沉积物(生物膜)主要活性组分吸附Cu/Zn时的交互作用. 沉积物(生物膜)组分含量变化与其吸附Cu/Zn的能力呈显著反比关系时, 交互作用的影响度最大为1 420.30%/54.30%(沉积物)和79.27%/703.31%(生物膜). 沉积物(生物膜)吸附Cu/Zn时, 与对应原样相比交互作用的促进作用影响度最大为386.14%/30.08%(沉积物)和66.17%/47.92%(生物膜).

关 键 词:沉积物    重金属    吸附    BP神经网络    交互作用  
收稿时间:2010-04-12

Interaction among Active Constituents of Sediments (SSs/NSCSs) on the Adsorption of Cu and Zn Based on BP Artificial Neural Network
GUO Qian-qian,GAO Qian,WANG Xiao-li,LI Yu.Interaction among Active Constituents of Sediments (SSs/NSCSs) on the Adsorption of Cu and Zn Based on BP Artificial Neural Network[J].Journal of Jilin University: Sci Ed,2011,49(2):346-352.
Authors:GUO Qian-qian  GAO Qian  WANG Xiao-li  LI Yu
Institution:1. Research Academy of Energy and Environmental Studies, North China Electric Power University, Beijing 102206, China;2. College of Environment and Resources, Jilin University, Changchun 130012, China
Abstract:A BP artificial neural network (ANN) model was developed via MATLAB to estimate Cu/Zn adsorption in the surficial sediments (SSs)
and natural surface coating samples (NSCSs), by which the mean square error of training set, the deviation of training set, the mean square error of verification set, and the deviation of test set are 0.002 2(0.001 5), 1.542 9×10-6(2.648 4×10-6), 0.087 1(0.069 2), and 0018 7(0.035 7), respectively. The predicted results of the BP ANN model established not only reveal the law of the adsorption of Cu/Zn by the active constituents of SSs (NSCSs) changed in grade, but also highlight the significant interaction among the activeconstituentsin the SSs (NSCSs) on the adsorption of Cu/Zn preliminary. The adsorption capacity of Cu/Zn increases with the decrease in content of active constituents, and the maximum ratios between the adsorption variation value of the changed SSs (NSCSs) and their original adsorption value are 1 420.30%/54.30% (SSs) and 79.27%/703.31% (NSCSs) respectively; the interaction among the active constituents in SSs (NSCSs) promote Cu/Zn adsorption, and the maximum ratios between the adsorption variation value of the changed SSs (NSCSs) and their original adsorption valueare 386.14%/30.08% (SSs) and 66.17%/47.92% (NSCSs) respectively.
Keywords:surficial sediments  heavy metals  adsorption  BP artificial neural network  interaction  
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