Results 91 to 100 of about 18,771 (157)

[Research progress in repair of post-epicanthoplasty deformity]. [PDF]

open access: yesZhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Ren B, Chen W.
europepmc   +1 more source

[Application and challenges of tissue engineered scaffolds in treatment of long-segment laryngotracheal stenosis]. [PDF]

open access: yesZhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Yu Q   +7 more
europepmc   +1 more source

胶浸纸穿墙套管电容芯体悬臂负荷下的绝缘性能研究

open access: yesDianci bileiqi
胶浸纸穿墙套管是直流输电工程换流站直流场与阀厅的连接设备,运行条件严酷,需要长期承受机、电、热等多种应力作用,其可靠性对系统安全至关重要。胶浸纸穿墙套管是典型的长悬臂结构,机械应力集中更加突出,因此其重负荷下的绝缘性能研究具有重要意义。国内外现行标准均开展单因素试验考核,与实际多因素工况存在一定差异,尚未见有关直流穿墙套管多因素试验研究的报道。本研究以某典型胶浸纸直流穿墙套管缩比单元电容芯体为研究对象,重点开展重负荷状态下电容芯体的绝缘性能测试。试验数据表明未加悬臂负荷时局部放电合格的电容芯体 ...
张晋寅   +7 more
doaj  

[Impact of pre-pregnancy body mass index on maternal and infant outcomes in twin pregnancies]. [PDF]

open access: yesZhongguo Dang Dai Er Ke Za Zhi
Wang HY   +24 more
europepmc   +1 more source

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