Results 31 to 40 of about 1,030 (82)

基于组件法的栓焊节点高温力学模型

Jianzhu Gangjiegou Jinzhan
钢框架梁柱连接节点的高温力学性能是影响火灾下钢框架结构抗连续倒塌性能的关键因素之一。基于组件法，将栓焊节点分解为翼缘拉压组件、连接板螺栓孔承压组件、螺栓受剪组件、梁腹板螺栓孔承压组件和螺栓滑移组件等基本组件，并分别对各组件的等效弹簧力学模型开展理论推导，最终建立了栓焊节点高温组件模型。基于已开展的栓焊节点抗火试验，构建了节点整体受力分析杆系模型，并通过对比有限元结果和试验结果，验证了组件模型的有效性和准确性。研究结果表明 ...
李永梅, 丁润民, 刘美景, 范圣刚   +3 more
doaj  

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  

[Effectiveness comparison of transforaminal endoscopy and unilateral biportal endoscopy for far lateral lumbar disc herniation]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Zhang J, Feng B, Xu Z, Tian L, Dai G, Wang K, Hu P.   +6 more
europepmc   +1 more source

[Application of infrared thermography in breast reconstruction and plastic surgery and limb reconstruction]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Jian H, Mu L, Pan J, He G, Song T, Chen X, Wu H, Xie K, Wang S, Xu Y, Huang L, Liu Y, Guo L, Zhang C, Chen Y, Tang S, Chen P, Liu Y, Xie M, Yang L, Cheng X, Dong Y, Han J, Yang W, Miao Y, Wu H, Yu Y.   +26 more
europepmc   +1 more source

[Effectiveness evaluation of three-dimensional printed customized hemi-pelvic prosthesis for pelvic reconstruction after resection of massive pelvic tumor]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Su Y, Gao C, Wu H, Sun Z, Yan W.
europepmc   +1 more source

[Medical treatment standards for emergency trauma wounded (2025 edition)]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
National Health Commission Of The People's Republic Of China.
europepmc   +1 more source

[Preparation of superhydrophilic imprinted resin-graphene aerogel composite and its precise recognition of tumor biomarker in urine]. [PDF]

Se Pu
Wang M, Tian T, Bai L, Han D, Yan H.
europepmc   +1 more source

[Preliminary application of domestic single-port serpentine arm robotic surgical system in children's pyeloplasty]. [PDF]

Beijing Da Xue Xue Bao Yi Xue Ban
Li Z, Huang Y, Li N, Li M, Song H, Zhang W, Liu C.   +6 more
europepmc   +1 more source

[Shihu Mixture alleviates diabetic cardiomyopathy in rats by Sirt3-mediated upregulation of myocardial mitochondrial mitophagy pathway]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Lin X, He Y, Shi H, Liu J, Hu H.
europepmc   +1 more source

[Effectiveness comparison of anterior cervical discectomy and fusion with zero-profile three-dimensional-printed interbody fusion Cage and titanium plate fusion Cage]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Li Y, Li X, Li B, Gu Y, Yang T, Zhao L, Cui W, Gu S, Wang H.   +8 more
europepmc   +1 more source