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Study on the water-tree ageing characteristics of polyethylene/organic montmorillonite and crosslinked polyethylene/organic montmorillonite nanocomposites

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High Voltage 2023年第2期8卷 262-273页

作者： Xiufeng Li Yunmeng Yang Qiang Wang Yuan Gao Wei Zhang Zhengdi Liu College of electrical and Electronic Engineering Shandong University of TechnologyZiboShandongChina state grid shandong electric power company weihai wendeng power supply company WendengShandongChina

The dispersion state of nanoparticles affects the properties of composites,and the crosslinking process of polymers affects the dispersion state of *** order to investigate the effects of crosslinking behaviour on the water-tree ageing characteristics of nanocomposite dielectrics at the molecular level,polyethylene/organic-montmorillonite(PE/organic montmorillonite(OMMT))and crosslinked polyethylene/organic-montmorillonite(XLPE/OMMT)nanocomposites were prepared by the melt blending method,after which the accelerated water-tree ageing experiments were conducted using a needle *** transform infrared spectroscopy,differential scanning calorimetry,successive self-nucleation annealing and scanning electron microscope(SEM)tests were conducted to characterise the properties of the samples before and after watertree *** results indicate that the initiation probability and the length of water trees in XLPE/OMMT are less than those in PE/*** carbonyl index in the watertree area of the two nanocomposites increases,indicating that the water-tree ageing is the result of electrochemical *** crystallisability of the water-tree area degrades,decreasing the crystallinity and the lamellar *** growth of water trees destroys molecular chains and crystal structures,which results in local *** are many holes for the water tree growth in the PE/OMMT ***,the crosslinked meshwork not only restricts the movement of macromolecular chains but also increases the stability of the lamellar barrier effect of *** combination of the two effects significantly improves the water-tree resistance of the XLPE/OMMT nanocomposite.

关键词： composites tree characteristics

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Research on electricity Personnel Apparel Monitoring Model Based on Auxiliary Categorical-Generative Adversarial Network

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国际计算机前沿大会会议论文集 2018年第2期 31-31页

作者： Xueming Qiao Yiping Rong Yanhong Liu Ting Jiang state grid weihai power supply company Weihai 264200 Shandong China state grid shandong electric power company Jinan 250000 Shandong China

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A Method of Text Extremum Region Extraction Based on Joint-Channels

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Journal on Artificial Intelligence 2020年第1期2卷 29-37页

作者： Xueming Qiao Weiyi Zhu Dongjie Zhu Liang Kong Yingxue Xia Chunxu Lin Zhenhao Guo Yiheng Sun state grid weihai power supply company WeihaiChina state grid shandong electric power company JinanChina School of Computer Science and Technology Harbin Institute of TechnologyWeihaiChina

Natural scene recognition has important significance and value in the fields of image retrieval,autonomous navigation,human-computer interaction and industrial ***,the natural scene image non-text content takes up relatively high proportion;secondly,the natural scene images have a cluttered background and complex lighting conditions,angle,font and ***,how to extract text extreme regions efficiently from complex and varied natural scene images plays an important role in natural scene image text *** this paper,a Text extremum region Extraction algorithm based on Joint-Channels(TEJC)is *** the one hand,it can solve the problem that the maximum stable extremum region(MSER)algorithm is only suitable for gray images and difficult to process color *** the other hand,it solves the problem that the MSER algorithm has high complexity and low accuracy when extracting the most stable extreme *** this paper,the proposed algorithm is tested and evaluated on the ICDAR data *** experimental results show that the method has superiority.

关键词： Feature extraction scene text detection scene text feature extraction extreme region

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