砷中毒动物视神经应力松弛特性分析

Chinese Journal of Control of Endemic Diseases(2016)

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Abstract
目的 通过应力松弛实验建立正常与砷中毒动物视神经的拉伸应力松弛函数方程,得出应力与时间的变化规律.方法 砷中毒与正常大鼠视神经各10个,在电子万能试验机上进行应力松弛实验.以5%/s的应变增加速度对试样施加拉伸应变,设定应力松弛实验时间7200 s,实验结束后计算机自动输出应力松弛实验结果.结果 砷中毒动物模型组视神经7200s应力下降量小于对照组(P<0.05).各组视神经应力松弛曲线以对数关系变化.结论 砷中毒损害了视神经,应力松弛特性发生了改变.
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Key words
Arsenic poisoning,Optic nerve,Stress relaxation characteristics
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