Results 121 to 130 of about 741,102 (151)

[Impact of surgeon's dominant hand-side consistency with surgical approach on operational efficiency of unilateral biportal endoscopic lumbar discectomy: a prospective cohort study]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Li W, Gao M, Zhang L, Yu Q, Chen X.
europepmc   +1 more source

闪耀光栅外腔半导体激光器及其准直方法

一种闪耀光栅外腔半导体激光器，包括：一激光器；一自聚焦透镜，该自聚焦透镜位于激光器的光路上；一压电陶瓷，该压电陶瓷位于自聚焦透镜之后的激光器的光路上，在压电陶瓷的表面缠绕有光纤；一准直透镜，该准直透镜位于压电陶瓷之后的激光器的光路上；一闪耀光栅，该闪耀光栅呈一预定角度位于准直透镜之后的激光器的光路上；一控制模块 ...
周燕, 曾华林, 何春九, 何军
core  

[Current status and prospects of minimally invasive surgical treatment for anterior disc displacement without reduction in temporomandibular joint]. [PDF]

Hua Xi Kou Qiang Yi Xue Za Zhi
Ren R, Cao P, Jiang N.
europepmc   +1 more source

柔性直流配电网中机械式直流断路器动作时序对操作过电压的影响

Gaoya dianqi
柔性直流配电网因其诸多优势成为未来配电网的重要组成部分，而直流断路器是构建柔性直流配电网的重要设备，但直流断路器动作时产生过电压危害系统的绝缘安全。文中基于Pscad/Emtdc建立±10 kV三端环网结构的柔性直流配电网仿真模型，对系统发生电缆侧双极短路故障、限流电抗器出口双极短路故障和单极接地故障时机械式直流断路器的开断策略和操作过电压特性进行理论和仿真分析，并研究线路两端机械式直流断路器动作时序对操作过电压的影响，最后对分析结果进行总结，文中的研究结果可为柔性直流配电网的保护策略和绝缘配合提供参考。
赵紫辉, 杨昆, 钱利宏, 曹阳娜, 史宗谦   +4 more
doaj  

[Analysis of risk factors and construction of a predictive model for perioperative urosepsis]. [PDF]

Zhong Nan Da Xue Xue Bao Yi Xue Ban
Ye Z, Ding T, Li Y, Liang S, Zou W.
europepmc   +1 more source

[Outcomes of suture-mediated vascular closure device in the closure of left brachial artery access site after thoracic endovascular aortic repair]. [PDF]

Beijing Da Xue Xue Bao Yi Xue Ban
Li W, Zhang X, Li W, Zhang T, Zhang X.
europepmc   +1 more source

[Advances in application of tissue expansion technology in breast reconstruction]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Jiang Y, Tang Z, Xiao S.
europepmc   +1 more source

[Challenges and clinical strategies for endodontic microsurgery in the posterior maxillary region]. [PDF]

Hua Xi Kou Qiang Yi Xue Za Zhi
Zhang C, Huang X, Hou B.
europepmc   +1 more source

[All-arthroscopic reduction and fixation of Pipkin type <b>Ⅰ</b> and <b>Ⅱ</b> femoral head fractures]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Lü J, Wang H, Chen L, Ni Q.
europepmc   +1 more source

[Diabetic foot care: full-lifecycle management driven by digital intelligent technologies]. [PDF]

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