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3篇 您的检索式:作者名="Bingjun Weng"
    题名 作者 年代 出处 被引量
1Preparation and Arc Breakdown Behavior of Nanocrystalline W-Cu Electrical Contact Materials显示文摘Nanostructured (NS) W-Cu composite powder was prepared by mechanical alloying (MA), and nanostructured bulk ofW-Cu contact material was fabricated by hot pressed sintering in an electrical vacuum furnace. The microstructure,electric conductivity, hardness, breakdown voltage and arcing time of NS W-Cu alloys were measured and comparedto conventional W-Cu alloys prepared by powder metallurgy. The results show that microstructural refinement anduniformity can improve the breakdown behavior, the electric arc stability and the arc extinction ability of nanos-tructured W-Cu contacts materials. Also, the nanostructured W-Cu contact material shows the characteristic ofspreading electric arcs, which is of benefit to electric arc erosion.Wenge CHEN Zhanying KANG Bingjun DING 2005Journal of Materials Science & Technology2005,21,6:9
2Arc erosion behavior of a nanocomposite W-Cu electrical contact material显示文摘在弧故障下面的 nanocomposite W-Cu 材料的侵蚀行为被调查。材料的弧侵蚀率被决定,并且侵蚀的表面和弧侵蚀机制被扫描电子显微镜学学习。thenanocomposite W-Cu 电的接触物质显示出散布弧的一个特征,这被结束。商业地使用的 W-Cu 合金的弧故障在一些区域,和它的平均的弧侵蚀率被限制象前者的一样两次大。而且, nanocomposite W-Cu 材料的弧扑灭能力和弧稳定性是优秀的,这也被证明,并且融化是在弧的 make-and-break 操作的主要失败形式。CHEN Wenge KANG Zhanying SHEN Hongfang DING Bingjun 2006Rare Metals2006,25,1:6
3Newly designed identifying method for ice thickness on highvoltage transmission lines via machine vision显示文摘The icing of transmission lines will bring considerable challenges to the safe operation of the power grid.Therefore,a novel method combines machine vision and machine learning algorithms for identifying the ice thickness on high‐voltage transmission line(HVTL)as proposed herein.First,noise and background interference in the image are filtered,and the grey image is used as input.Then,the algorithms of improved Canny edge detection,Hough transform,improved K‐means clustering,and least‐squares fitting are adopted in turn to locate the edges of conductors.Finally,according to the distance mapping model based on monocular vision,the ice thickness of the conductor is determined by calculating the width difference before and after icing.The experimental results show that the proposed method can accurately locate the edge of the conductor in both field and experimental environments.Moreover,it can ensure ideal effects under different illumination and hardly not be affected by distortion in both horizontal and vertical directions.Besides,the distance mapping model can map the pixel distance to the actual distance with high precision,no matter whether the background is simple or complex,and the calculated ice thickness has only a small deviation compared to the actual value.In addition,the proposed method shows high reliability and effectiveness when various interference such as different backgrounds,uneven icing,height difference changes,conductor movement,contrast changes,and conductor sag occur.Bingjun Weng Wei Gao Weicou Zheng Gengjie Yang 2021High Voltage2021,6,5:3
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