Results 61 to 70 of about 3,864 (102)

内置铆接开孔冷弯薄壁型钢混凝土组合梁受弯性能研究

Jianzhu Gangjiegou Jinzhan
基于锁铆连接传力可靠、强度优异的特征，提出了一种新型的内置铆接开孔冷弯薄壁型钢混凝土组合梁。以底部铆钉间距、截面宽度为变量，对内置铆接开孔冷弯薄壁型钢混凝土组合梁开展了四点弯曲试验，考察了该组合梁的破坏特征、承载性能和延性指标，试验结果表明：新型组合梁受弯时表现出良好的延性性能；底部铆钉间距小的组合梁延性较差；增大截面宽度可提高组合梁的极限承载力。采用ABAQUS有限元软件对该组合梁进行参数分析，重点探究五大关键参数对其力学性能的影响：有无混凝土包裹、混凝土强度、顶部铆钉间距、底部钢板厚度及截面高度 ...
潘志宏, 郑建强, 司启, 王云庆, 李航   +4 more
doaj  

[Research progress of molecular imprinting technology in the field of disease diagnosis and therapy]. [PDF]

Se Pu
Zhu R, Cai GP, Zheng HJ, Jia Q.
europepmc   +1 more source

[Numerical analysis research on the impact of tibial tray fixation peg structure on initial fixation stability in total knee arthroplasty]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Ling Y, Han J, Zhang Z, Peng Y, Zhang J, Chen Z, Jin Z.   +6 more
europepmc   +1 more source

翼缘双摩擦面Z形悬臂梁式全螺栓连接梁柱节点抗震性能研究

Jianzhu Gangjiegou Jinzhan
为研究所提出的新型翼缘双摩擦面Z形悬臂梁式全螺栓连接梁柱节点的抗震性能，设计相关试件进行拟静力试验和有限元分析。同时利用有限元模拟对新型梁柱节点进行参数化分析，以验证节点的适用性及设计方法的合理性。研究结果表明：新型节点发生梁端受弯破坏，最终在悬臂梁翼缘与钢柱焊接处开裂；翼缘螺栓连接段内无滑动现象，滞回曲线饱满无捏缩；连接节点的承载能力强，变形能力良好；有限元分析结果与试验结果吻合良好；当按等强连接配置螺栓时，不同截面尺寸节点模型的滞回性能相近，破坏模式相同，可按规范规定的刚接节点设计方法进行设计。
沙磊, 屠锋, 康超懿, 吴正清
doaj  

[Effectiveness of staged therapy using external fixation frame for infectious nonunion near knee joint]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Wang Z, Guo X, Kang Z, Wang X, Jin G, Tan H, Deng X, Feng W.   +7 more
europepmc   +1 more source

[Treatment options and research progress of proximal tibial extra-articular fractures]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Zhang Y, Zhang Q, Lin Y, Fan Y.
europepmc   +1 more source

[Arthroscopic-assisted closed reduction and internal fixation with absorbable screws for Hawkins type <b>Ⅱ</b> talar neck fractures]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Dong Z, Cao Z, Dong H, Jiang H, Shi L, Zhang Y, Sun J.   +6 more
europepmc   +1 more source

[Bioactive substances delivery for bone repair via nanocomposites: advantages, mechanisms, and emerging trends]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Ma Y, Du Z, Wang J, Li X.
europepmc   +1 more source

[A clinical study on the centralized occlusal scheme for implant-supported overdentures in edentulous patients]. [PDF]

Beijing Da Xue Xue Bao Yi Xue Ban
Diao C, Wang S, Li M, Pan S, Liu Y.
europepmc   +1 more source

[Design and synthesis of molecularly imprinted polymers and their applications in medical diagnosis and biocatalysis]. [PDF]

Se Pu
Song Q, Li X, Lyu Y.
europepmc   +1 more source