Load-unload response ratio and its application to estimate future seismicity of Qiandao Lake region

AbstractLURR (Load-Unload Response Ratio) has been introduced briefly in this paper and future seismicity of Qiandao Lake region has been predicted in terms of LURR for the purpose of SFT (Submerged Floating Tunnel) project

Effect of acupotomy on nitric oxide synthase and beta-endorphin in third lumbar vertebrae transverse process syndrome model rats

AbstractObjectiveTo explore the long-term effects and pain relief mechanism of acupotomy by observing changes in nitric oxide synthase (NOS) and beta-endorphin (β-EP) in the hypothalamus, spinal cord, and peripheral blood of rats with third lumbar vertebrae (L3) transverse process syndrome.MethodsTwenty-eight SD rats were randomly assigned to normal, model, electroacupuncture (EA), and acupotomy group. The last three groups were put through an operation to emulate L3 transverse process syndrome. Fourteen days after the simulation operation, EA and acupotomy treatments were applied to the respective groups. Fifty-six days after the simulation operation, biochemistry tests and enzyme-linked immunosorbent assay were used to measure NOS and β-EP in the hypothalamus, spinal cord, and peripheral blood.ResultsRats with the simulation operation showed significantly higher levels of NOS and β-EP in the hypothalamus, spinal cord, and peripheral blood than those in the normal group. The EA and acupotomy groups had significantly lower levels of NOS and β-EP than those in the model group. There was no statistical difference between the EA and acupotomy groups.ConclusionEA and acupotomy treatments significantly lowered NOS and β-EP levels in the hypothalamus, spinal cord, and peripheral blood and alleviated L3 transverse process syndrome

hardnessmeasurementandevaluationofthinfilmonmaterialsurface

给出了基于纳米硬度试验的表层薄膜的硬度测算方法。首先研究如何利用有限元计算弥补纳米硬度测量在压痕深度小于百纳米时的精度缺陷，进而探讨薄膜一基体材料系统的硬度随压痕深度变化的规律，最后导出了根据实验曲线预测表层薄膜材料的硬度的公式，并进行了实验验证