Results 61 to 70 of about 532 (101)

[Impact of tibial tunnel position in artificial posterior cruciate ligament reconstruction on postoperative knee function and stability]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Zhao Y, Wang C.
europepmc   +1 more source

[Research on Bacteriophage Resistance: Coevolutionary Arms Race Between Bacteria and Phages Drives Novel Antibacterial Therapies]. [PDF]

Sichuan Da Xue Xue Bao Yi Xue Ban
Li R, Wan F, Wei J, Wen Y, Jia P, Lin P, Liu L, Wu M.   +7 more
europepmc   +1 more source

[Management of accidental tooth root displacement into the mandibular canal during tooth extraction]. [PDF]

Hua Xi Kou Qiang Yi Xue Za Zhi
Su L, Zhao J.
europepmc   +1 more source

[Rheumatoid arthritis complicated with necrotizing fasciitis: A case report]. [PDF]

Beijing Da Xue Xue Bao Yi Xue Ban
Lyu X, Yu X, Zhang W, Liu C, Lin H, Zeng S, Huang H, Wu Y.   +7 more
europepmc   +1 more source

耦合磁吹和触头运动的直流接触器电弧特性研究

Gaoya dianqi
磁吹结构和运动机构特性是影响直流接触器电弧开断性能的重要因素。文中引入灭弧室中非均匀磁场分布与动触头运动特性的耦合影响，构建了电、磁、气流、温度等多场耦合的二维电弧磁流体动力学仿真模型，分析了不同磁吹结构、反力弹簧刚度系数、触头超程等参数对直流电弧特性的影响。搭建了直流接触器电弧特性实验平台，开展了对比实验验证仿真结果。研究表明：提出在静触头之间增加中间永磁体的两种新型磁吹结构，较原结构燃弧时间分别缩短20.2%与14.7%，在电极下方磁吹结构增加中间永磁体的提升效果更好；反力弹簧刚度系数的最优选择为1.
武稼祥, 于丽琴, 常东旭, 张艺博, 朱博, 秦聪, 葛国伟   +6 more
doaj  

[Transoral endoscopic-assisted submandibular gland resection with low-temperature plasma knife: clinical efficacy and literature review]. [PDF]

Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi
Tan Q, Tang F, Lei X, Wang R, He J, Yi T.   +5 more
europepmc   +1 more source

[Development and research progress of suture button fixation Latarjet procedure]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Lu Y, Lu W.
europepmc   +1 more source

[Diagnosis and treatment of rare malignant temporal bone tumors]. [PDF]

Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi, 2023
Gao L, Zhang W, Xia Y.
europepmc   +1 more source

有载分接开关触头缺陷对切换过程中电磁辐射的影响研究

Gaoya dianqi
有载分接开关切换过程会产生电弧，伴随电弧发展产生的电磁辐射及高频电流信号可用于有载分接开关的在线监测。本文首先开展了M型有载分接开关的切换试验，研究切换过程中的电磁辐射特性与切换时序的对应关系；然后搭建了模拟触头平台，研究了动静触头分离过程中的电磁辐射信号的频域特性。接着开展了触头松动与烧蚀的缺陷模拟，提出了基于Teager能量算子联合阈值及时间间隔寻峰算法的电磁辐射信号特征提取方法，获得了缺陷下燃弧时间和电磁辐射峰值的变化规律 。研究结果表明，M型有载分接开关切换过程电磁辐射具有4阶段特征 ...
刘浩宇, 臧谦, 方天承, 张志刚, 代璐健, 张凡   +5 more
doaj  

[Applying a rigid curved video laryngoscope in laryngeal microsurgery of patients with difficult laryngeal exposure]. [PDF]

Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi, 2022
Wang G, Bing D, Chen X, Dong P.
europepmc   +1 more source