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Thermal property of biological tissu

時間:2023-04-27 14:48:33 生物醫學論文 我要投稿
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Thermal property of biological tissues characterized by piezoelectric photoacoustic technique

A photoacoustic piezoelectric method based on a simplified thermoelastic theory is employed to determine thermal diffusivities of biological tissues. The thermal diffusivities of porcine tissues with different preparation conditions, including fresh, dry and specially prepared conditions, are characterized. Comparing the experimental evaluated diffusivities of the tissues in three conditions with each other, it can be seen that the diffusivities of the fresh tissues are the biggest and the diffusivities of the specially prepared tissues are bigger than that of the dry ones generally. The results show that the piezoelectric photoacoustic method is especially effective for determining macro-effective (average) thermal diffusivities of biological materials with micro- inhomogeneity and easy to be performed, which can provide useful information for researching thermal characters of biological tissues.

作 者: GAO Chunming ZHANG Shuyi CHEN Yan SHUI Xiuji Yang Yuetao   作者單位: Lab of Modern Acoustics, Institute of Acoustics, Nanjing University, Nanjing 210093, China  刊 名: 科學通報(英文版)  SCI 英文刊名: CHINESE SCIENCE BULLETIN  年,卷(期): 2004 49(20)  分類號: Q1  關鍵詞: thermo-elastic theory   photoacoustic effect   piezoelectric effect   biological tissues   thermal properties  

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