Results 61 to 70 of about 156 (84)

GIS工程中接地系统仿真计算的应用及技术探讨

Gaoya dianqi, 2016
气体绝缘金属封闭开关设备（gas insulated metal-closed switchgear,GIS）是一种结构紧凑的多元件组合的开关装置,为保证其正常、可靠的运行,GIS的接地网应具有承载正常额定电流能力,也需承载短路故障电流的能力。在GIS工程设计时,应合理的进行GIS接地系统的设计和布置,使其利于降低GIS接触电压、短路故障电流和感应电流,保证工作人员和开关设备的安全。笔者结合工程,利用EMTDC仿真计算软件,对上述GIS接触电压、短路故障电流和感应电流进行了计算及探讨,并得出结论 ...
火恒章, 夏廷君, 郑玉林, 王全海   +3 more
doaj  

[Repetitive transcranial magnetic stimulation significantly improves cognitive impairment and neuronal excitability during aging in mice]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi, 2020
Zhu H, Ding C, Li Y, Xu G.
europepmc   +1 more source

交流GIS用紧凑型盆式绝缘子沿面绝缘特性研究

Gaoya dianqi
盆式绝缘子作为气体绝缘金属封闭开关设备（GIS）中核心元件，在保证绝缘强度前提下，为了减小设备体积，减少SF6气体使用量，文中以工程实际GIS用盆式绝缘子为研究对象，基于沿面电场优化开展了紧凑型盆式绝缘子方案设计，重点研究了盆子中心导体处倾斜角度、高压屏蔽电极根部到盆子中心导体距离及盆式绝缘子侧壁角度对切向场强的影响。仿真结果表明，紧凑型盆式绝缘子凹、凸侧面切向场强呈现单双峰结构变化，凸侧面最大切向场强大幅上升，整体最大切向场强降低5.5%；中心导体处倾斜角度为6°～8°时，凹面侧最大切向场强取得极小值。
朱传运, 刘超峰, 齐小虎, 王小东, 黄鑫, 金喜洋, 窦云鹤, 张慧珍, 管健   +8 more
doaj  

[Expert consensus on overall standardized management of gadoxetate disodium-enhanced MRI examinations (version 2026)]. [PDF]

Zhonghua Gan Zang Bing Za Zhi
Abdomen Group of Chinese Society of Radiology, Chinese Medical Association, Nursing Group of Chinese Society of Imaging Technology, Chinese Medical Association, Chongqing Society of Radiology, Chongqing Medical Association, Imaging Nursing Committee, Chongqing Nursing Association.   +7 more
europepmc   +1 more source

[Effect of convection enhanced delivery on the microstructure of brain extracellular space in aged rats]. [PDF]

Beijing Da Xue Xue Bao Yi Xue Ban, 2020
Song Y, Han HB, Yang J, Wang AB, He QY, Li YY, Zhao GM, Gao YJ, Wang R, Han YX, Liu AL, Song QW.   +11 more
europepmc   +1 more source

特高压交流GIL气密性检测分析和试验研究

Gaoya dianqi
气体绝缘金属封闭输电线路（GIL）是为超长距离、大容量的地下输电线路开发的一种电力设备，作为一种新型输电设备，得到广泛应用。与气体绝缘开关设备（GIS）相比，由于GIL内部的绝缘气体总量大，安装环境复杂，发生泄漏后对环境及电力系统安全影响很大。在中国特高压苏通管廊工程中，GIL中SF6气体的总量高达750 t，文中通过局部包扎法、整体扣罩法和氦检漏3种检漏方法的研究和比较，针对不同形状的特高压GIL极低漏气率要求，研究了氦质谱真空检漏的检测方法、试验装置及关键参数，并应用于长度为20 ...
郝宇亮, 陈家伟, 李宣健楠, 杨梦迪, 刘志强, 王伟   +5 more
doaj  

[Repair and reconstruction of facial organ injuries: a perfect fit of structure and function]. [PDF]

Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi
Song BQ, Pei JM.
europepmc   +1 more source

[Clinical Practice and Quality Control Guidelines for Totally Implantable Venous Access Ports in Cancer Patients (2024)]. [PDF]

Sichuan Da Xue Xue Bao Yi Xue Ban
Professional Committee Of Interventional Oncology Chinese Anti-Cancer A, Professional Committee On Minimally Invasive Intervention World Association Of Chinese O, Professional Committee Of Intervention Beijing Association Of O.   +2 more
europepmc   +1 more source

[Mechanisms and protective strategies for astronaut skin injury in deep space environments]. [PDF]

Zhong Nan Da Xue Xue Bao Yi Xue Ban
Xie Y, Zeng J.
europepmc   +1 more source

[Clinical practice guideline for pediatric scar prevention and treatment (2025 edition)]. [PDF]

Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi
Chinese Burn Association.
europepmc   +1 more source