温度对人母乳射频介电特性的影响。

Effect of temperature on the RF dielectric properties of human breast milk.

作者信息

Laogun A A

出版信息

Phys Med Biol. 1986 Aug;31(8):893-900. doi: 10.1088/0031-9155/31/8/004.

Abstract

The dielectric dispersion of human breast milk has been investigated by means of a resonance technique over the frequency range 0.1-100 MHz and at six temperatures from 10 to 60 degrees C. A computer analysis of the data was carried out on the basis of the Cole-Cole structural model and the fitted parameters have been presented. The dependence on temperature of both the viscosity of the human milk and its dielectric relaxation has been discussed. The heat of activation delta H of the milk, calculated in accordance with Eyring's theory of rate processes was found to be 19.5 +/- 0.6 kJ mol-1 for the dielectric relaxation process and 20.2 +/- 0.8 kJ mol-1 for viscous flow.

摘要

利用共振技术，在0.1 - 100 MHz的频率范围内以及10至60摄氏度的六个温度下，对人母乳的介电色散进行了研究。基于Cole - Cole结构模型对数据进行了计算机分析，并给出了拟合参数。讨论了人乳粘度及其介电弛豫对温度的依赖性。根据艾林速率过程理论计算得出，母乳介电弛豫过程的活化热ΔH为19.5±0.6 kJ mol⁻¹，粘性流动的活化热为20.2±0.8 kJ mol⁻¹。