Results 61 to 70 of about 362 (127)

[Technical standards for the diagnosis and treatment of pediatric total facial management in Shenzhen]. [PDF]

open access: yesLin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi, 2023
Zhang Q, Dai J, Li L.
europepmc   +1 more source

[Retrospective clinical analysis of 31 cases of necrotizing fasciitis of the neck with or without descending necrotizing mediastinitis]. [PDF]

open access: yesLin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi
Li B   +6 more
europepmc   +1 more source

全氟异丁腈环保气体环网柜设计关键技术

open access: yesGaoya dianqi
为响应国家“双碳”战略,中国配电网正逐步禁止使用SF6气体绝缘设备,全氟异丁腈(C4F7N)作为国际主流的SF6环保替代气体之一,研发点多面广的C4F7N环保气体环网柜(C4F7N环网柜)显得尤为必要。文中针对C4F7N环网柜设计关键技术开展研究,分析了C4F7N/CO2混合气体的绝缘和液化等关键性能,提出了绝缘设计的场强控制值并计算得到液化温度,优选了气压不变、C4F7N体积占比10%的混合气体技术方案。开展了C4F7N/CO2混合气体与铸钢、工程塑料、橡胶和环氧玻纤材料的热加速实验 ...
高克利   +7 more
doaj  

[Analysis of MRI and clinical characteristics for pediatric head, neck, and facial lymphatic malformations]. [PDF]

open access: yesLin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi
Chen J   +5 more
europepmc   +1 more source

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