Results 81 to 90 of about 529 (100)

绝缘子电气机械特性的数理统计研究 附视频

open access: yesDianci bileiqi, 1976
本文简述了高压线路盘形悬式绝缘子串和电站支柱绝缘子闪络特性(与闪络距离的关系)回归方程,圆柱形支柱绝缘子和纯瓷穿墙套管弯曲破坏应力特性(与危险断面截面积以及胶装比的关系)回归方程,瓷绝缘子工频击穿电压(与击穿距离的关系)回归方程,盘形悬式瓷绝缘子机电破坏负荷特性(与瓷件头部内孔承力面面积的关系)回归方程。介绍了回归方程与实测结果以及国外公式的比较,各种特性的标准偏差回归方程计算结果。附录简述了回归方程计算万法。
doaj  

[Expert consensus on clinical diagnosis and treatment technique of osteonecrosis of the femoral head (2022 version)]. [PDF]

open access: yesZhongguo Xiu Fu Chong Jian Wai Ke Za Zhi, 2022
Association Related To Circulation Osseous Chinese Microcirculation Society Csm-Arco.
europepmc   +1 more source

[Repair methods for refractory head wounds involving intracranial structures and their clinical effectiveness]. [PDF]

open access: yesZhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi
Wang MN   +9 more
europepmc   +1 more source

Risk factors for femoral neck fracture in elderly population. [PDF]

open access: yesZhong Nan Da Xue Xue Bao Yi Xue Ban, 2021
Liu P   +5 more
europepmc   +1 more source

[Research progress on augmentation repair of anterior talofibular ligament under arthroscopy]. [PDF]

open access: yesZhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Zhang M, Li K, Yang H, Li Y.
europepmc   +1 more source

[Analysis of risk factors for early failure of simple taper retentive implants]. [PDF]

open access: yesHua Xi Kou Qiang Yi Xue Za Zhi
Zhang X   +8 more
europepmc   +1 more source

Arterial spin labeling magnetic resonance evaluates changes of cerebral blood flow in patients with mild traumatic brain injury. [PDF]

open access: yesZhong Nan Da Xue Xue Bao Yi Xue Ban, 2022
Xiong F   +5 more
europepmc   +1 more source

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