Model indicates that, at low current density and high methanol concentration, the methanol crossover poses a serious problem for a DMFC.
模型计算显示，在低电流密度和高浓度甲醇进料情况下，甲醇渗透将成为DMFC的一个严重问题。
The calculated results of current density and heat flux on flat weld pool surface using model established in this paper are agreed with experiment.
用本模型计算出的平坦熔池表面电流密度和热流密度的分布与试验结果显示了很好的一致性。
A theoretical model used in calculating the reverse current density is proposed by considering several current transport mechanisms.
通过对反向电流各种输运机制的分析，提出了一种计算反向电流密度的理论模型。
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