【摘 要】
：
人体颈椎的退变性病变是医学研究的一个重要方面.该文采用数字散斑相关方法(DSCM)对人体颈椎C7及其下位椎间盘进行了动态测试,得到变形演化的全过程.同时采用CT图像完成了颈
论文部分内容阅读
人体颈椎的退变性病变是医学研究的一个重要方面.该文采用数字散斑相关方法(DSCM)对人体颈椎C7及其下位椎间盘进行了动态测试,得到变形演化的全过程.同时采用CT图像完成了颈椎C7的三维重建,建立了有限元分析模型进行退变性和正常条件下的计算.结果表明: 在同等外载条件下,退变型颈椎的最大位移和应变水平分别增加42%和134%, 最大应力水平下降24%, 显示颈椎的退变性将极大地削弱颈椎的抗变形和承载能力.有限元分析和散斑实验结果均显示终板及其附近存在应力集中,有限元分析和散斑实验结果的相符表明了两种方法在生物力学研究方面的可行性.
其他文献
The purpose of this study was to fabricate decelluarized valve scaffold modified with polyethylene glycol nanoparticles loaded with transforming growth factor-
This study investigated the tight junction (TJ) protein expression of the intestinal mucosa in a rat tail-suspension model under simulated weightlessness.Twenty
The mechanism of injury on the human glomerular endothelial cells (ciGENC) induced by preeclampsia serum was investigated.Concentration of maternal serum sFlt-1
To construct a lentiviral shRNA vector targeting human protein phosphatase 1D magnesium-dependent (PPM1D) gene and detect its effectiveness of gene silencing in
In order to investigate the biological function of transforming growth factor-β1 (TGF-β1)during fibrosis in denervated skeletal muscle,we recruited sciatic ne
Houttuynia cordata Thunb., traditionally used as a therapeutic plant in folk medicine, has shown antioxidant and anticancer activities.The species, as a core co
Leafy spurge (Euphorbia esula L.) has substantial negative effects on grassland biodiversity, productivity, and economic benefit in North America.To predict the
为筛选支气管上皮鳞状不典型增生进展的分子标志物 ,采用改良的脱氧胆酸 三氯醋酸 (deoxycholate trichloroaeticacid ,DOC TCA)法提纯支气管上皮总蛋白质进行双向电泳 (two
利用光触媒钛羟基磷灰石网膜(PTAF)具有吸附和酶催化的特点,研究其对SARS病毒的抑制作用.实验结果表明在紫外照射条件下,PTAF膜对SARS冠状病毒的抑制率为100%.在没有紫外照射
使用长模板PCR方法检测223例湖北地区人群中CYP2D6二倍体.在被检人群中,CYP2D6二倍体的基因频率为2.7%.检测到6例CYP2D6二倍体,基因型分别为*1×2(3/6),*2×2(2/6);*10×2(1/