Results 81 to 90 of about 1,143 (136)

[Guideline for the diagnosis and treatment of common neonatal diseases in primary healthcare institutions: neonatal resuscitation (2025)]. [PDF]

Zhongguo Dang Dai Er Ke Za Zhi
Subspecialty Group of Neonatology, Society of Pediatrics, Chinese Medical Association; Editorial Board, Chinese Journal of Contemporary Pediatrics.   +3 more
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

[Guidelines for the diagnosis and treatment of common neonatal diseases in primary healthcare institutions: neonatal jaundice (2025)]. [PDF]

Zhongguo Dang Dai Er Ke Za Zhi
Subspecialty Group of Neonatology, Society of Pediatrics, Chinese Medical Association; Editorial Board of ChineseJournal of Contemporary Pediatrics.   +2 more
europepmc   +1 more source

T形方颈单边螺栓连接钢梁-方钢管柱节点试验研究

T形方颈单边螺栓是一类新型的单侧安装紧固件，可用于闭口截面钢构件连接，其构造简单、安装便利、无需额外的安装辅助工具，能适应现场粗放的施工方式，具有较大的应用潜力。对4个T形方颈单边螺栓连接钢梁-方钢管柱节点和1个传统螺栓连接节点开展了单调荷载下的静力性能试验，探讨了长圆形螺栓孔布置方案以及端板加劲肋和钢管柱内混凝土两种加强措施对节点结构响应的影响。研究了T形方颈单边螺栓连接节点的破坏模式、转角-弯矩关系、关键部位转角-应变关系、各部位屈服顺序等，揭示了此类节点的工作及破坏机理 ...
孙乐乐, 王培军, 王新华
core  

改进型钢管混凝土柱-H型钢梁槽形端板节点抗震性能研究

Jianzhu Gangjiegou Jinzhan
为研究方钢管混凝土柱与H型钢梁槽形端板连接节点的抗震性能，对3个槽形端板连接节点和1个普通端板连接节点进行了低周往复加载试验，研究了节点的破坏机理与特征、承载能力、节点区应力分布以及抗震性能等，分析了节点构造参数不同对其抗震性能的影响。在试验研究基础上，采用ABAQUS有限元软件进行了有限元适应性验证和参数分析，对比了槽形端板连接节点和普通端板连接节点承载力、延性和初始转动刚度的差异性。试验研究表明：试件均在端板和梁翼缘连接处出现对接焊缝撕裂以及焊缝附近母材断裂现象，普通端板发生了明显翘曲 ...
高春彦, 王延彬, 孙凯琦, 王净杰   +3 more
doaj  

[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

[Progress in prevention and treatment of knee laxity after posterior cruciate ligament reconstruction]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Ruan Z, Shi Z, Yuan P, Yang X, Li Y.
europepmc   +1 more source

[Design and research of a pneumatic soft intestine robot imitating the inchworm]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
He Y, Sun Z, Yuan J, Wei C, Han G, Chu X.   +5 more
europepmc   +1 more source

[Construction and application of oral squamous cell carcinoma organoid bank]. [PDF]

Beijing Da Xue Xue Bao Yi Xue Ban
Xie S, Wang L, Zhang X, Feng Q, Xia Y, Dai Z, Shan X, Cai Z.   +7 more
europepmc   +1 more source

鼓蜂窝四撑杆Ⅲ型索穹顶结构静力性能分析

Jianzhu Gangjiegou Jinzhan
鼓蜂窝四撑杆型索穹顶抛弃传统概念，结合了多撑杆构思，是构形最为丰富的一类索穹顶结构。为研究新型鼓蜂窝四撑杆Ⅲ型索穹顶结构静力性能，选取下弦节点布置方案1，建立跨度为120 m的有限元数值分析模型，研究该结构在不同荷载水平及分布方式下的变形和内力变化。并进一步对结构进行参数化分析，研究包括初始预应力水平、矢跨比、撑杆高度（厚跨比）及下弦节点布置方案等不同参数对于结构整体刚度与承载力的影响及变化规律。分析结果表明鼓蜂窝四撑杆Ⅲ型索穹顶具有良好的结构性能，各索杆均不容易发生破坏，结构整体刚度大 ...
吕辉, 张浩, 董石麟, 储熠熠, 刘德旺   +4 more
doaj