Dianci bileiqi为提高高压输电线路瓷质绝缘子串劣化或低/零值带电检测的准确性，研制了可用于无人机搭载的自动可变间隙火花放电检测装置。首先结合声-光-电检测实现了绝缘子分布电压的自动和准确测量。其次在实验室搭建了间隙放电试验平台，试验确定了球形间隙放电电压与间隙距离的对应关系，据此整定了可变火花间隙测量装置的间隙距离。最后建立了绝缘子串及检测装置等效模型，利用场路结合法研究了检测装置介入对检测结果的影响。研究结果表明，可变间隙距离的火花放电检测装置对绝缘子串原始电场影响小，高精度检测有助于准确地判断绝缘子片劣化程度 ...
张刚 +5 more
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[Feasibility analysis of predicting expression of Ki67 in pancreatic cystic neoplasm based on radiomics]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za Zhi, 2019 Wei R, Lin K, Guo Y, Li J, Wang Y.
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Dianci bileiqi提出了一种基于红外热成像（IRT）图片的非接触式瓷绝缘子故障诊断方法，用于对架空电力绝缘子进行自动监测和视觉检查。首先采用最优阈值法对IRT图像中的重点区域进行分割。随后，从分割的重点区域中计算出各种几何、形态、强度和统计特征，作为XGBoost分类器的输入，最终利用图像处理技术和基于XGBoost的分类器模型开发出零值和低值绝缘子状态分类方法。研究表明，XGBoost分类器各项指标均为最优，精度（ACC）可达98.00%，真阳性率（TPR）为93.55%，而假阳性率（FPR）仅为1.49 ...
陈杰 +6 more
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Dianci bileiqi, 2008 专利申请号:CN200610124808.6公开号:CN1936612申请日:2006.10.19公开日:2007.03.28申请人:何速本发明涉及一种利用激光遥测高压绝缘子零值的方法,由半导体激光源及偏振光学系统、光学检偏器及光电探测器、信号处理电路及计算机系统构成。其具体步骤是:第一,由半导体激光源及偏振光学系统产生一种偏振激光出射到待扫描绝缘子串;
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[An improved algorithm for electrohysterogram envelope extraction]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za Zhi, 2017 Lu Y, Pan J, Chen Z, Chen Z.
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[Plaque segmentation of intracoronary optical coherence tomography images based on K-means and improved random walk algorithm]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za Zhi, 2017 Wang G +5 more
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[Connectivity pattern of action potentials causal network in prefrontal cortex during anxiety]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za Zhi, 2020 Bao X, Dong H, Liu T, Zheng X.
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[Study on calculation method of internal and external fluid capacity of human cells based on bioimpedance spectroscopy]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za Zhi, 2019 Ke L, Xu J, Zhao Y, Du Q, Lu H.
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[Construction and biocompatibility in vitro evaluation of electrospun-graphene/silk fibroin nanofilms]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi, 2017 Zhao Y, Niu C, Gong J, Wang H, Yang Y.
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[The research on cardiac volume-time relationship based on retrospective electrocardiograph four-dimension computer tomography data collection and structured sparse algorithm]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za Zhi, 2018 Li M +6 more
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