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风电机组混凝土桩基接地散流特性与结构优化研究

open access: yesDianci bileiqi
良好的接地装置是维持风电机组安全运行的关键,为研究风电机组混凝土桩基接地散流特性及降阻效率问题,本文利用COMSOL Multiphysics仿真软件搭建风电机组混凝土桩基模型,研究混凝土电阻率以及土壤条件对桩基散流特性、土壤击穿特性的影响,并提出柔性石墨复合接地材料外敷的结构优化措施。研究结果表明:桩基接地电阻随着混凝土(土壤)电阻率的增大而增大;相较混凝土电阻率,土壤电阻率对桩基散流特性的影响更明显;桩基周围土壤的火花击穿体积随混凝土(土壤)电阻率的增大而增大,而土壤电阻率对其影响更大 ...
姜城炜   +5 more
doaj  

[Meta-analysis of the effects of PDL combined with fractional carbon dioxide laser in the treatment of hypertrophic scars in children]. [PDF]

open access: yesZhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi
Wu J, Zhang HM, Liu R, Zhang NX, Cui RT.
europepmc   +1 more source

[Risk factors of positive surgical margin and multifocal positive surgical margin after robot-assisted radical prostatectomy]. [PDF]

open access: yesBeijing Da Xue Xue Bao Yi Xue Ban
Wang K   +10 more
europepmc   +1 more source

[A multicenter study on the risk factors for in-hospital mortality in neonates with severe asphyxia at tertiary hospitals in Henan Province]. [PDF]

open access: yesZhongguo Dang Dai Er Ke Za Zhi
Pei WJ   +23 more
europepmc   +1 more source

[Technical specification and consensus on routine oral health examinations for adults]. [PDF]

open access: yesHua Xi Kou Qiang Yi Xue Za Zhi
Health Promotion Professional Committee of China Association for Promotion of Health Science and Technology   +5 more
europepmc   +1 more source

[Recent advances in application of venous superdrainage in perforator flaps]. [PDF]

open access: yesZhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
He A, Ba L, Wei Z.
europepmc   +1 more source

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