Results 111 to 120 of about 2,933 (156)

局部电场畸变对SF6/N2和SF6/CO2混合气体耐电强度的影响

open access: yesGaoya dianqi, 1988
本文用半椭球凸出物模型计算了在SF6/N2和SF6/CO2中电极表面粗糙度对耐电强度的影响。计算表明:在电场畸变严重时,两种混合气体的击穿强度均高于纯SF6,且SF6/CO2优于SF6/N2。这一结论并为实验结果所证实。
doaj  

[Application Value of an AI-based Imaging Feature Parameter Model 
for Predicting the Malignancy of Part-solid Pulmonary Nodule]. [PDF]

open access: yesZhongguo Fei Ai Za Zhi
Lin M   +8 more
europepmc   +1 more source

GIL三支柱绝缘子表面电荷积聚特性

open access: yesGaoya dianqi
表面电荷积聚特性主要集中在平板试样、盆式绝缘子,对GIL设备用三支柱绝缘子表面电荷积聚特性鲜有报道。文中以实际550 kV GIL三支柱绝缘子为试品,建立三支柱绝缘子三维测量试验平台,采用电容探头法,改变电压幅值、加压时间、粗糙度,试验获取三支柱绝缘子表面电荷积聚规律。结果表明:交流电压作用下GIL三支柱绝缘子支柱区域积聚的电荷密度较小,而腹部区域积聚的电荷密度较大;提高试验电压幅值、延长试验电压作用时间、增大支柱绝缘子表面粗糙度,均可增加GIL三支柱绝缘子表面电荷密度;一定条件下 ...
黎卫国   +5 more
doaj  

[Effect of printing orientation on physical and mechanical properties of 3D printing prosthodontic base resin materials]. [PDF]

open access: yesBeijing Da Xue Xue Bao Yi Xue Ban
Zhan X   +5 more
europepmc   +1 more source

[Frameshift mutation in RELT gene causes amelogenesis imperfecta]. [PDF]

open access: yesBeijing Da Xue Xue Bao Yi Xue Ban
Zhang Z, Xu X, Gao X, Dong Y, Tian H.
europepmc   +1 more source

[Evaluation of <i>Chlamydia muridarum</i> and mixed bacteria-induced chronic salpingitis models and optimization of mixed bacterial dosage]. [PDF]

open access: yesZhong Nan Da Xue Xue Bao Yi Xue Ban
He L   +9 more
europepmc   +1 more source

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