Results 71 to 80 of about 174 (130)

[Application of percutaneous endoscopic gastrostomy in children with methylmalonic acidemia or propionic acidemia complicated by feeding difficulties: a case series of 7 patients]. [PDF]

open access: yesZhongguo Dang Dai Er Ke Za Zhi
Li WY   +10 more
europepmc   +1 more source

纳秒脉冲激光诱导的金属膜喷发的分布特征

open access: yes, 2021
焦宏飞 Jiao Hongfei   +5 more
core   +1 more source

[Characteristics of the subtype of vestibular migraine with ear fullness: association with early onset age and low-frequency hearing loss]. [PDF]

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

[Research Progress in the Application of Terahertz Spectroscopy and Imaging Technology in Stomatology]. [PDF]

open access: yesSichuan Da Xue Xue Bao Yi Xue Ban, 2023
Chen C   +5 more
europepmc   +1 more source

纳秒脉冲激光能量沉积激波减阻机理数值研究

open access: yes, 2021
卿泽旭 Qing Zexu   +2 more
core   +1 more source

输电线缆耦合强电磁脉冲特性的分析

open access: yesDianci bileiqi
针对输电线缆耦合强电磁脉冲感应过电压的问题,利用有界波模拟器产生2.3/23 ns的电场波形,对LGJ和ZR-VVR两种架空输电线缆进行耦合实验,用直接实验法分析其不同条件下耦合到的感应过电压特征和差别。试验结果表明:电场强度在10 kV/m以下时,这两种输电线缆耦合到的电压随着电场强度的增加而增大并近似为线性增加;电压波形近似为阻尼振荡,振荡周期为纳秒级;输电线缆耦合到的电压会随着架空高度、入射仰角、横截面积、耦合长度的增大而增大。在输电线缆近端负载接50 Ω阻抗匹配时,耦合到的电压和能量最大 ...
李祥超, 王贤超
doaj  

Clinical characteristics of 32 cases of diffuse panbronchiolitis. [PDF]

open access: yesZhong Nan Da Xue Xue Bao Yi Xue Ban, 2023
Zhang L   +6 more
europepmc   +1 more source

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