Results 81 to 90 of about 119 (100)

基于热成像和XGBoost分类的瓷绝缘子故障诊断研究

open access: yesDianci 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
doaj  

[Feasibility analysis of predicting expression of Ki67 in pancreatic cystic neoplasm based on radiomics]. [PDF]

open access: yesSheng Wu Yi Xue Gong Cheng Xue Za Zhi, 2019
Wei R, Lin K, Guo Y, Li J, Wang Y.
europepmc   +1 more source

利用激光遥测高压绝缘子零值的方法

open access: yesDianci 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;
doaj  

[An improved algorithm for electrohysterogram envelope extraction]. [PDF]

open access: yesSheng Wu Yi Xue Gong Cheng Xue Za Zhi, 2017
Lu Y, Pan J, Chen Z, Chen Z.
europepmc   +1 more source

[Connectivity pattern of action potentials causal network in prefrontal cortex during anxiety]. [PDF]

open access: yesSheng Wu Yi Xue Gong Cheng Xue Za Zhi, 2020
Bao X, Dong H, Liu T, Zheng X.
europepmc   +1 more source

[Construction and biocompatibility in vitro evaluation of electrospun-graphene/silk fibroin nanofilms]. [PDF]

open access: yesZhongguo Xiu Fu Chong Jian Wai Ke Za Zhi, 2017
Zhao Y, Niu C, Gong J, Wang H, Yang Y.
europepmc   +1 more source

[Expert consensus on the clinical application of gut microbiota transplant therapy in chronic liver disease (version 2025)]. [PDF]

open access: yesZhonghua Gan Zang Bing Za Zhi
Liver Related Digestive Diseases Group   +2 more
europepmc   +1 more source

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