Results 61 to 70 of about 3,558 (111)

[Research progress of meniscal centralization for degenerative medial meniscus extrusion]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Zhao Q, Niu X, Huang J.
europepmc   +1 more source

[Structural design and mechanical analysis of a "drum-shaped" balloon-expandable valve stent in expanded configuration]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Zhao Y, Hou Q, Zhou J, Chen S, Zhang H, Qiao A.   +5 more
europepmc   +1 more source

[State-of-the-art in peripheral nerve injury diagnosis and therapy]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Sun J, Chen L.
europepmc   +1 more source

[Closed-loop spinal neural interface combined with rehabilitation training for incomplete spinal cord injury: a case report]. [PDF]

Zhejiang Da Xue Xue Bao Yi Xue Ban
Feng C, Zhu J, Zhang J, Xu K.
europepmc   +1 more source

不同磁场条件下直流接触器电弧开断特性的仿真研究

Gaoya dianqi
直流接触器是实现分断、功率切换以及故障保护等功能的关键器件。文中以某直流接触器为例，建立了直流接触器氢气电弧特性仿真的二维磁流体动力学模型，该模型综合考虑了外部负载电路、触头运动以及非均匀外部磁场等因素对接触器电弧特性的影响，仿真研究了不同磁钢厚度下密闭式直流接触器内电弧开断过程中的电流电压变化曲线以及温度场分布。研究结果表明，在不同磁钢厚度的非均匀磁场作用下，450 V/400 A、充气压力为4 atm（1 atm=101 kPa）的直流接触器内部电弧的燃弧时间有所不同，并且随着磁钢厚度增大 ...
黄一凡, 王立军, 王凯, 张润铭
doaj  

[Establishment and comparative analysis of femoral biomechanical equivalent model]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Shi H, Zhang X, Wu T, Sherri G, Zhang Y, Jin Z.   +5 more
europepmc   +1 more source

1 000 kV特高压GIL气室SO₂超标异常原因分析及改进措施

Dianci bileiqi
本研究对一起1 000 kV特高压气体绝缘金属封闭输电线路（GIL）气室SO2超标展开分析。提出现场加压辅助定位方法进行诊断，对异常部位增加X光检测，发现C相气室4垂直段插接触头有疑似脱出部件和疑似点状凸起。现场解体检查发现母触头触指、压环及不锈钢挡圈从正常位置脱出，触指与公触头熔合。提出返厂模拟挡圈拉力测试，发现拉力达到116.5 kN时，挡圈从母触头处脱出。得出母触头内不锈钢挡圈未安装到位，运行中逐渐脱出后，导致触指与母触头接触不良，长期运行电流作用下母触头与触指过热烧蚀引起SF6气体分解 ...
乔振朋, 郭果, 杨知非, 高俊岭, 杜宇轩, 王卓, 赵泽方   +6 more
doaj  

[Initial exploration of the relationship between homeostatic occlusion and long-term dental implant stability]. [PDF]

Hua Xi Kou Qiang Yi Xue Za Zhi
Chen J, Wu L.
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

[Current status and future directions of stability reconstruction following spinal tumor resection]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Zhou J, Dong J.
europepmc   +1 more source