Results 61 to 70 of about 1,141 (154)

圆形钢管混凝土柱轴压承载力及承载力组成研究

Jianzhu Gangjiegou Jinzhan
为了研究相互作用下圆形钢管混凝土（circular concrete-filled steel tube，CCFST）柱中钢管和混凝土各自的承载力贡献，通过ABAQUS软件中的VUMAT子程序导入一种新的混凝土材料本构，建立了能够反映CCFST柱中钢管和混凝土相互作用的三维有限元模型，并通过试验数据验证了模型的荷载-位移曲线、钢管和混凝土的荷载-变形曲线以及侧向变形曲线。在此基础上分析了混凝土强度、钢管屈服强度、径厚比以及套箍系数对CCFST柱承载力及其组成的影响 ...
陈立康, 黄远
doaj  

[Research progress of suture augmentation in anterior cruciate ligament reconstruction]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Liu J, Li H, Wang M, Wang Y, Guo G, Zhang H.   +5 more
europepmc   +1 more source

间断焊接包管加固圆钢管构件轴压极限承载力研究

Jianzhu Gangjiegou Jinzhan
为研究间断焊接包管加固杆件的轴心受压性能，设计了13组试件进行单调加载静力试验。对试件极限承载力、破坏模式、荷载-位移曲线和截面应变发展规律进行分析，对比了负载加固与非负载加固对试件极限承载力的影响。结果表明：包管构件的破坏模式可分为整体失稳破坏和内管外伸段强度破坏；包管构件内外管协同工作、共同受力，内管和外管都在屈服后发生整体失稳破坏；负载加固与非负载加固试件的极限承载力基本一致，相差2.2%，非负载加固试件与未加固试件相比，极限承载力最大提高了479.9 ...
孟文清, 严珮珮, 崔邯龙, 张亚鹏, 张陆旭, 王超   +5 more
doaj  

[Hydrodynamic finite element analysis of biological scaffolds with different pore sizes for cell growth and osteogenic differentiation]. [PDF]

Beijing Da Xue Xue Bao Yi Xue Ban
Hu Y, Lyu W, Xia W, Liu Y.
europepmc   +1 more source

[Legal Risk Assessment and Prevention in Artificial Intelligence-Assisted Health Care]. [PDF]

Sichuan Da Xue Xue Bao Yi Xue Ban
Yang J, Wang N, Hu Y, Zhang W.
europepmc   +1 more source

[Research on performance optimization method of human-machine physical interaction system considering exoskeleton wearing comfort]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi, 2023
Qi W, Yang Y, Zhou Z, Gong J, Chen P.
europepmc   +1 more source

[Structural design and evaluation of bone remodeling effect of fracture internal fixation implants with time-varying stiffness]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Sun H, Ding X, Xu S, Duan P, Xiong M, Zhang H.   +5 more
europepmc   +1 more source

[Research progress on the design of bone scaffolds with different single cell structures]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi, 2023
Sun Y, Wang Y, Zhou L, Li Y, Shen J, Dong B, Yang P, Li Y, Ma J, Ma X.   +9 more
europepmc   +1 more source

带水平加劲肋PEC墙-钢梁刚接节点极限承载力

Jianzhu Gangjiegou Jinzhan
部分包覆钢-混凝土组合（Partially encased composite，PEC）墙在装配式建筑领域具有广阔的应用前景，但其节点承载力尚待进一步深入研究。对带水平加劲肋PEC墙-钢梁刚接节点受力性能进行研究，基于既有试验验证有限元模拟的准确性，考察水平加劲肋厚度、柱间腹板厚度、暗柱截面高度和暗柱横隔板间距等参数对节点承载力的影响，根据节点受力机理和有限元分析结果，提出带水平加劲肋PEC墙-钢梁刚接节点极限承载力计算式。研究表明，计算值与有限元结果吻合良好，适用于带水平加劲肋PEC墙 ...
张咸昌, 朱浩川, 叶灵鹏, 肖志斌, 金振奋   +4 more
doaj  

[Molecular mechanism of magnesium alloy promoting macrophage M2 polarization through modulation of PI3K/AKT signaling pathway for tendon-bone healing in rotator cuff injury repair]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Sheng X, Zhang W, Song S, Zhang F, Zhang B, Tian X, Xiong W, Zhu Y, Xie Y, Li Z, Tan L, Zhang Q, Wang Y.   +12 more
europepmc   +1 more source