THERMAL-PROPERTY MEASUREMENTS ON BIOLOGICAL-MATERIALS AT SUBZERO TEMPERATURES
THERMAL-PROPERTY MEASUREMENTS ON BIOLOGICAL-MATERIALS AT SUBZERO TEMPERATURES
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DOI：
10.1115/1.2895422
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发表时间：
1991-11-01
影响因子：
1.7
通讯作者：
PEGG, DE
中科院分区：
文献类型：
--
作者：
BAI, XM;PEGG, DE
采用自热式热敏电阻技术测量生物材料的低温导热系数和热扩散系数。选择热标准来在-10 ℃至-70 ℃的温度下校准系统。热探针构造有对流屏障，其消除低粘度液体样品内的对流，而不影响电导率和扩散率结果。使用这种技术，两个器官灌注液（HP 5和HP 5 + 2 M甘油），一个肾脏体模（低离子强度凝胶），以及兔肾皮质的热导率和扩散率已被测量从-10 ℃到-70 ℃。
The self-heated thermistor technique was used to measure the thermal conductivity and thermal diffusivity of biomaterials at low temperatures. Thermal standards were selected to calibrate the system at temperatures from -10-degrees-C to -70-degrees-C. The thermal probes were constructed with a convection barrier which eliminates convection inside liquid samples of low viscosity, without affecting the conductivity and diffusivity results. Using this technique, the thermal conductivity and diffusivity of two organ perfusates (HP5 and HP5 + 2M glycerol), one kidney phantom (a low ionic strength gel), as well as rabbit kidney cortex have been measured from -10-degrees-C to -70-degrees-C.