Results 61 to 70 of about 1,457 (102)

悬式复合绝缘子电晕放电紫外图像光斑面积

open access: yesGaoya dianqi, 2013
笔者采用数字图像处理算法提取了紫外图像中的放电光斑区域并定义了"光斑面积"参数,试验研究了10、35、110 kV复合绝缘子高压侧电晕放电时的紫外图像和放电量的变化特性,得到了光斑面积与视在放电量之间的关系曲线。获得了光斑面积随仪器增益和观测距离变化时的试验数据并利用MATLAB的CFTOOL工具箱函数进行了拟合分析,研究表明光斑面积与增益之间近似满足于指数变化规律,光斑面积与距离之间近似满足于幂函数变化规律。在此基础上论文给出了50%、60%、70%、80%4种增益 ...
陈磊   +4 more
doaj  

[Effects of glutathione on acute cutaneous photodamage in mice and its mechanism]. [PDF]

open access: yesZhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi
Wang Q   +5 more
europepmc   +1 more source

[Interpretation of the Expert Consensus for Full Course Management of Plexiform Neurofibroma (2025 Edition)]. [PDF]

open access: yesZhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Group Of Neurofibromatosis Plastic And Reconstructive Surgery Society Of Chinese Medical Association   +1 more
europepmc   +1 more source

基于推扫式SiC日盲紫外线阵的干式电抗器放电空间定位

open access: yesGaoya dianqi
由于缺乏针对干式电抗器早期放电故障的定位和研判技术手段,干式电抗器的故障检测和预防成为变电站设备运维难点。文中提出了一种基于SiC日盲雪崩管线阵和光子辐照图像变换的电抗器放电光学检测及定位方法。首先,文中建立了电抗器的TracePro光路仿真模型,探究了匝间不同位置发生放电时设备内部的光学传播特性及辐照度分布规律。基于上述规律提出了光学传感器线阵的最优排布方式,设计了针对电抗器结构的线形紫外日盲光电推扫阵列,仿真得到了放电光源在线阵各单元上的辐照度响应关系。在此基础上,提取了光学信号矩阵的特征 ...
胡蝶   +4 more
doaj  

[Guangdong consensus on integrated Chinese and Western medicine management of prolonged disorders of consciousness]. [PDF]

open access: yesNan Fang Yi Ke Da Xue Xue Bao
Neurocritical Care Committee of Guangdong Provincial Association of Chinese Medicine.
europepmc   +1 more source

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