兔主动脉比热容测量  

MEASUREMENT ON THE HEAT CAPACITY OF FROZEN RABBIT ARTERY

作　　者：周国燕[1] 胥义[1] 高才[1] 胡桐记[1] 华泽钊[1] 

机构地区：[1]上海理工大学低温医学技术与食品冷冻研究所,上海200093

出　　处：《工程热物理学报》2006年第1期121-123,共3页Journal of Engineering Thermophysics

基　　金：国家自然科学基金青年基金资助项目(No.50206013)上海市教委重点学科项目资助

摘　　要：本文用差示扫描量热技术的分步扫描方法,测量了未加抗冻剂和加抗冻剂的兔主动脉在30-140℃温度范围内的比热容。实验发现相变过程中,未加抗冻剂的兔主动脉的最大表观比热容大于加抗冻剂的相应值;冻结状态相同温度下未加抗冻剂的兔主动脉的比热容小于的加抗冻剂的兔主动脉的比热容;溶解后的未加抗冻剂和加抗冻剂的兔主动脉的比热容随着温度的升高而减小。并将测量结果与其它方法获得的比热容数值进行了比较,发现实际测量的比热容值与估算之间还是有区别的。In this paper, the heat capacity of the rabbit artery with or without MeSO2 is measured under the temperature form 30℃ to -140℃, using Stepscan method of differential scanning calorimetry （DSC）. The conclusion is that the maximum apparent heat capacity of rabbit artery during phase change without MeSO2 is lower than that of rabbit artery with MeSO2. At same temperature, the heat capacity of the frozen artery without CPA is lower than that with CPA. The heat capacity of the unfrozen artery with or without CPA becomes lower with higher temperature. The experiment result is different from that from estimation.

关 键 词：主动脉 低温 比热容 低温保护剂 分步扫描法 

分 类 号：R318[医药卫生—生物医学工程]