Results 61 to 70 of about 595 (106)

[Application of minimally invasive techniques in clinical treatment of tibial plateau fractures]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Wang Z, Zheng Z, Zhang Y.
europepmc   +1 more source

基于可解释机器学习的螺栓抗剪连接件承载力预测模型

Jianzhu Gangjiegou Jinzhan
准确预测螺栓抗剪连接件的抗剪承载力对可拆卸再利用钢-混凝土组合梁的设计和应用具有重大意义。本文通过参考公开文献资源，构建了一个包含200组螺栓抗剪连接件抗剪承载力推出试验结果的数据库。在数据处理阶段，研究采用可解释机器学习方法，对数据库的异常样本进行了精准识别，深入分析了数据间的相关性。在模型构建过程中，选择推出试验试件的混凝土强度、弹性模量、螺栓抗拉强度、螺栓屈服强度、螺栓直径、预埋长度等核心指标，并基于四种先进的机器学习算法，通过超参数调节方法，构建了螺栓抗剪连接件抗剪承载力的预测模型 ...
马晨, 罗云标
doaj  

[A dual-center study of enhanced CT-based nomograms predicts spontaneous portosystemic shunts on initial hemorrhage from rupture of esophageal gastric varices in cirrhosis]. [PDF]

Zhonghua Gan Zang Bing Za Zhi
Yan XZ, Chu JH, Li B, Chen XY, Yuan BS, Li HY, Wang GL, Ji Q.   +7 more
europepmc   +1 more source

[Effect of different bone grafting methods and internal fixation on mechanical stability of Schatzker type <b>Ⅱ</b> tibial plateau fracture]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Wang Z, Wang Y, Tian S, Wang Z, Zhang R, Lian X, Zheng Z, Zhang Y.   +7 more
europepmc   +1 more source

[TiRobot-assisted minimally invasive treatment of geriatric fragility fractures of the pelvis]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Li C, Dai Y, Cai W, Situ X, Zeng Y, Du X, Hong S.   +6 more
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

模块化钢框架模块间全螺栓拼接节点力学性能分析

Jianzhu Gangjiegou Jinzhan
文中提出了一种新的模块化钢框架模块间全螺栓拼接方法，通过模块间连接键、单向螺栓与对穿螺栓的协同作用实现了模块间全螺栓装配。为研究该拼接节点的力学性能，采用ABAQUS有限元软件建立了模块化钢框架模块间全螺栓拼接节点精细化数值模型，并对其进行了低周往复加载数值模拟，分析了该节点的滞回曲线、骨架曲线、延性、耗能及承载力性能；还建立了节点初始转动刚度计算模型，推导了节点初始转动刚度计算公式，并与数值模拟计算结果进行了对比验证，验证了初始转动刚度计算公式的准确性。结果表明：该全螺栓拼接节点的构造设计合理 ...
王杰, 王燕, 安琦
doaj  

[Caplacizumab combined with therapeutic plasma exchange, glucocorticoids, and rituximab for refractory thrombotic thrombocytopenic purpura: a case report and literature review]. [PDF]

Zhonghua Xue Ye Xue Za Zhi
Wei QZ, Lu C, Jiang HW, Hu JB, Wu YH, Hu Y.   +5 more
europepmc   +1 more source

[Predictive value of ultrasound-derived quantitative indicators of umbilical cord hypercoiling and hemodynamic parameters for adverse pregnancy outcomes]. [PDF]

Zhong Nan Da Xue Xue Bao Yi Xue Ban
Tan X, Zhou Q, Yuan H, Hou D, Zhu Y, Yao R.   +5 more
europepmc   +1 more source

[Early follow-up study on three-dimensional-printed customized porous acetabular components for reconstructing extensive acetabular bone defects in primary total hip arthroplasty]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Tang S, Li Z, Hu X, Tan L, Wang H, Wang Y, Lu M, Tang F, Luo Y, Zhou Y, Tu C, Min L.   +11 more
europepmc   +1 more source