Results 101 to 110 of about 2,589 (173)

试验室绝缘子泄漏电流测量方法研究

Dianci bileiqi, 2007
监测泄漏电流是评估绝缘子污秽状态的重要手段,介绍了各种湿度下进行人工污秽绝缘子泄漏电流试验的方法。通过理论分析和试验测量,从变压器容量、测量仪器、采样电阻、屏蔽层接地方式及加湿时间等方面探讨了各因素对泄漏电流实验的影响;提出了非饱和湿度条件下雾湿润效果的检测方法,并通过人工污秽试验进行了验证。结果表明:湿度、盐密及绝缘子的等效电容越大,变压器的容量要求也越大;采样电阻过大,将影响泄漏电流值的准确度;屏蔽层采用两端接地是行之有效的方法;加湿时间为9min时,泄漏电流达到最大值。
赵新德, 邵瑰玮, 李景禄
doaj  

[Simulation analysis of adaptability of large airborne negative pressure isolation cabin to aviation conditions]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Guo L, Li F, Jiang L, Du H, Xue B, Yong W, Jiang Y, Zhang M.   +7 more
europepmc   +1 more source

[Pregnancy complicated by patent urachus: A case report]. [PDF]

Beijing Da Xue Xue Bao Yi Xue Ban
Yang J, Zhang L, Zhang Y.
europepmc   +1 more source

[Clinical effects of negative pressure wound therapy in treating the poor healing of incisions after different abdominal operations]. [PDF]

Zhonghua Shao Shang Za Zhi, 2021
Wang XX, Xiang Y, Meng Y, Ma B, Hu XY, Tang HT, Ben DF, Xiao SC.   +7 more
europepmc   +1 more source

避雷器的密封及负压检漏法的研究 附视频

Dianci bileiqi, 1996
通过分析传统避雷器密封结构及检漏方法的利弊，明确了密封结构的具体要求，研制开发出避雷器负压检漏器。它试验周期短，检漏成本低，效果直观。氦质谱检漏仪检漏成本高，手续烦琐；喷吹法只能检测孔径不变的泄漏，而负压检漏器对于固定孔径和可变孔径的泄漏检测均是合适的。
doaj  

[Total 3D laparoscopic ileal ureters replacement for bilateral ureters combined with bladder augmentation in the management of post-radiotherapy bilateral ureteral strictures and contracted bladder]. [PDF]

Beijing Da Xue Xue Bao Yi Xue Ban
Huang W, Sha X, Zhang Y, Wu G, Luo F, Chen Z, Ye D, Li X, Lai C.   +8 more
europepmc   +1 more source

[The application of pedicled middle turbinate mucosal flap in transnasal endoscopic repair of cerebrospinal fluid rhinorrhea]. [PDF]

Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi, 2021
Lai Y, He X, Wang J, Xu M, Chen X.
europepmc   +1 more source

XuanHuGPT: parameter-efficient fine-tuning of large language model in the field of traditional Chinese medicine. [PDF]

Chin Med
Tong X, Ding X, Jia H, Yuan Y, Liu L, Wang Y, Xiong Z, Yang X, Im SK, Wang MH.   +9 more
europepmc   +1 more source

[Pathogenesis and diagnosis of hereditary stomatocytosis]. [PDF]

Zhonghua Xue Ye Xue Za Zhi, 2020
Li JQ, Qian BH.
europepmc   +1 more source

Genetic analysis of <i>UMOD</i> gene mutation in autosomal dominant tubulointerstitial kidney disease. [PDF]

Zhong Nan Da Xue Xue Bao Yi Xue Ban
Zhang Y, Li N, Lu M, Lei Y, Zhang K, Liu J.   +5 more
europepmc   +1 more source