Results 81 to 90 of about 126 (113)

[Medical treatment standards for emergency trauma wounded (2025 edition)]. [PDF]

open access: yesZhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
National Health Commission Of The People's Republic Of China.
europepmc   +1 more source

[Expert consensus on on-site medical rescue and transfer of children in an earthquake]. [PDF]

open access: yesZhongguo Dang Dai Er Ke Za Zhi, 2020
Pediatric Disaster Branch of Chinese Pediatric Society of Chinese Medical Association   +1 more
europepmc   +1 more source

雷击外浮顶储罐的电磁感应研究

open access: yesDianci bileiqi
雷电直接击中外浮顶储罐顶部时,流经罐体的雷电流产生的瞬变电磁场,会在储罐的液位计等附属装置的信号电缆上以及浮顶与罐壁之间感应出过电压,轻则损坏监测仪表,重则引发火灾危险。本文应用电磁仿真软件,构建了接近真实外浮顶储罐几何尺寸的仿真模型,通过合理设置仿真环境和参数,研究了雷击外浮顶储罐顶部时,储罐接地点数量、接地点与信号电缆相对位置关系两种情形下在电缆上产生的感应电压特点,以及接地点数量、导电片数量对浮顶与罐壁之间感应电压的影响,提出了抑制雷击电磁感应的措施。
王大伟   +4 more
doaj  

[Research progress on the improvement of olfactory function by different surgical procedures for chronic rhinosinusitis]. [PDF]

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

林火干扰下亚热带森林土壤胞外酶化学计量特征

open access: yesShuitu Baochi Xuebao
目的森林火灾作为亚热带森林生态系统主要的自然和人为干扰过程,严重影响土壤生物化学循环过程。为明确土壤胞外酶活性计量特征对林火干扰后恢复过程的响应。方法以亚热带次生林林火干扰后不同恢复阶段的土壤为研究对象,采用空间替代时间序列的方法选取7个次生林恢复阶段的亚热带森林土壤,并将其分为老龄林(60~70 a)、中龄林(30~40 a)和幼龄林(<20 a),通过测定土壤碳(C)、氮(N)、磷(P)相关的转化酶活性,揭示林火干扰下亚热带森林土壤胞外酶活性及其化学计量特征的演替规律。结果土壤纤维素水解酶(CBH ...
郭琦玲   +5 more
doaj  

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