Results 101 to 110 of about 616 (147)

[Clinical characteristics and analysis of risk factors for heart injuries in 55 patients with lightning injury on plateau in Tibet Autonomous Region]. [PDF]

Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi, 2023
Yang SS, Zhao YY, Luo ZJ, He C, Li YH.
europepmc   +1 more source

喷口烧蚀对SF₆开关设备电弧放电分解产物的影响研究

Gaoya dianqi
SF6开关设备开断时喷口会受到电弧侵蚀，喷口烧蚀程度与分解产物密切相关，而电弧放电条件下喷口烧蚀的特征产物尚不明确，严重制约SF6分解产物分析法在故障诊断方面的应用。为探明喷口烧蚀的特征产物及其与电弧能量之间的关系，文中基于40.5 kV SF6断路器搭建电弧放电试验平台，在安装和摘除喷口的情况下开展SF6、He气氛下的电弧放电试验，采用气相色谱法对试验后的气体进行定性、定量检测分析。10次5 kA电弧放电试验后发现SF6气氛下喷口烧蚀产生的CF4、C2F6、CO2分别占总生成量的99.8%、77.1%、
徐孟元, 杨韧, 王占北, 徐留玉, 闫静, 耿英三, 李旭, 薛军, 苏波   +8 more
doaj  

[Comparative study on accuracy of three imaging methods in diagnosis of subacromial impingement syndrome]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Zi L, Jin H, Zhu J, Zhang G, Tong Y, Chen S, Shao W, Tang X.   +7 more
europepmc   +1 more source

[Research progress on the role of peripheral nerves in wound healing]. [PDF]

Zhejiang Da Xue Xue Bao Yi Xue Ban
Zhang Z, Ren D, Tang J, Guo S.
europepmc   +1 more source

[Strategy of the diagnosis and treatment for epistaxis and guideline for clinical application of MasterPillar]. [PDF]

Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi, 2023
Shi L.
europepmc   +1 more source

基于氧同位素示踪技术的H₂O对SF₆电弧放电分解产物的影响研究

Gaoya dianqi
SF6分解产物与SF6开关设备故障放电类型和严重程度存在内在联系，可通过分解产物分析实现对开关设备的故障诊断。H2O对SF6电弧放电分解产物具有显著影响，但其影响规律及相关作用机制目前尚不清楚，严重制约了分解产物分析法的工程应用。为解决这一问题，文中搭建了SF6开关设备电弧放电分解产物实验研究平台，利用H218O作为示踪剂开展了电弧放电实验，利用气相色谱质谱联用仪分析了放电过程中和放电后含18O同位素物质的变化规律，明确了电弧放电下SF6分解产物的形成途径及H2O对SF6分解产物的影响 ...
徐孟元, 杨韧, 汪金星, 李旭, 崔庭东, 张军   +5 more
doaj  

[Comparison of the efficacy of sigmoid sinus constriction plus cartilage reconstruction and sigmoid sinus return surgery in sigmoid sinus-related pulsatile tinnitus]. [PDF]

Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi
Cao W, Wu Z, Zhao Y, Tong B, Yao K.
europepmc   +1 more source

[Annual review of capillary electrophoresis technology in 2022]. [PDF]

Se Pu, 2023
Wen YL, Shao YC, Zhao XY, Qu F.
europepmc   +1 more source

[Imaging and clinical significance of tubular cell in lateral facial recess]. [PDF]

Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi
Hao X, Yu Z.
europepmc   +1 more source

[Tympanic membrane repair using improved endoscopic ear canal flap dissection method]. [PDF]

Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi
Sun H, Song R, Yu Z.
europepmc   +1 more source