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Citation: HUANG Ka-Ma, JIA Guo-Zhu, YANG Xiao-Qing. Nonlinear Characteristics of Conductivity in Aqueous NaCl Solution at Microwave Frequency[J]. Acta Physico-Chimica Sinica, ;2008, 24(01): 20-24. doi: 10.3866/PKU.WHXB20080104 shu

Nonlinear Characteristics of Conductivity in Aqueous NaCl Solution at Microwave Frequency

1.
College of Electronics and Information Engineering, Sichuan University, Chengdu 610064, P. R. China

Received Date: 20 June 2007
Available Online: 15 November 2007

The influence of electromagnetic fields on conductivity of aqueousNaCl solution at microwave frequency was studied. The Langvin equation was performed by using an asymmetrical double-well and periodic potential. All runs were started from describing the average hydrogen-bond of cluster configuration in aqueous NaCl solution under the constant temperature conditions. The relation between the conductivity and the probability of hydrogen bonding formation was established by using Bertolini function. When the intensity of microwaves was above 10 kV·m-1, the calculation indicated that microwave energies were partly transformed to intermolecular energies of cluster, which made conductivity interrelated with intensity of microwave. The results agreed well with experiments. The strongly nonlinear change was cate rized as one of microwave nonthermal effects.
- Microwaves; Aqueous NaCl solution; Langvin equation; Cluster; Hydrogen-bond; Nonthermal effects
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