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| 1 | Welding Deviation Detection Algorithm Based on Extremum of Molten Pool Image Contour显示文摘The welding deviation detection is the basis of robotic tracking welding, but the on-line real-time measurement of welding deviation is still not well solved by the existing methods. There is plenty of information in the gas metal arc welding(GMAW) molten pool images that is very important for the control of welding seam tracking. The physical meaning for the curvature extremum of molten pool contour is revealed by researching the molten pool images, that is, the deviation information points of welding wire center and the molten tip center are the maxima and the local maxima of the contour curvature, and the horizontal welding deviation is the position difference of these two extremum points. A new method of weld deviation detection is presented, including the process of preprocessing molten pool images, extracting and segmenting the contours, obtaining the contour extremum points, and calculating the welding deviation, etc. Extracting the contours is the premise, segmenting the contour lines is the foundation, and obtaining the contour extremum points is the key. The contour images can be extracted with the method of discrete dyadic wavelet transform, which is divided into two sub contours including welding wire and molten tip separately. The curvature value of each point of the two sub contour lines is calculated based on the approximate curvature formula of multi-points for plane curve, and the two points of the curvature extremum are the characteristics needed for the welding deviation calculation. The results of the tests and analyses show that the maximum error of the obtained on-line welding deviation is 2 pixels(0.16 mm), and the algorithm is stable enough to meet the requirements of the pipeline in real-time control at a speed of less than 500 mm/min. The method can be applied to the on-line automatic welding deviation detection. | ZOU Yong JIANG Lipei LI Yunhua XUE Long HUANG Junfen HUANG Jiqiang | 2016 | Chinese Journal of Mechanical Engineering2016，29，1： | 12 |
| 2 | Lithologic Boundaries in Permian Post-glacial Sediments of the Gondwana-affinity Regions of China:Typical Sections,Age Range and Correlation显示文摘在西南中国, Gondwana 亲密关系 Permo 含碳的存款被知道发生在北喜马拉雅山脉,拉萨块和南方卡恩格唐·布洛克,鲍尚·布洛克和 Tengchong 烈性黑啤酒。三方面的碎屑状的继任,也就是, diamictitepebbly, mudstonedark mudstone 和页岩通常作为在海洋的环境代表 glacialdeglacialpost 冰川的时期的存款被解释。例如,在鲍尚·布洛克,在腾琼·布洛克的 Kongshuhe 形成, Yongzhu 组和 Poindo 扔 Dingjiazhai 形成在拉萨块的组,都被碳酸盐存款接替。这从冰期后的碎屑状的环境标记一个重要变化到碳酸盐环境。碳酸盐环境的从冰期后的碎屑状的环境的变化在 Artinskian 的开始发生在 Baoshan, Tengchong 和拉萨块的可得到的 paleontological 数据表演。在鲍尚·布洛克的碳酸盐环境被 Woniusi 暗岩的爆发破坏,并且在拉萨的 Xainza 区域,块被碎屑状的环境立即代替直到 Kungurian。在北喜马拉雅山脉,石灰石开始发生了在以一种波动的方式晚二叠。 | JIN Xiaochi HUANG Hao SHI Yukun ZHAN Lipei | 2011 | Acta Geologica Sinica(English Edition)2011，85，2： | 8 |
| 3 | Inertia identification and auto-tuning of induction motor using MRAC显示文摘 | Guo Yujie Huang Lipei | 2002 | IEEE Transactions on Power Electronics2002，13，4： | 1 |
| 4 | A new robust algorithm to improve the dynamic performance on the speed control of induction motor drive 显示文摘 | FENG Guang LIU Yanfei HUANG Lipei | 2004 | IEEE Trans on Power Electronics2004，19，6： | 1 |
| 5 | A novel commutation method of matrix converter fed induction motor drive using RB-IGBT 显示文摘 | SUN Kai ZHOU Daning HUANG Lipei | 2007 | IEEE Trans Indu Appl2007，43，3： | 1 |
| 6 | Power loss and junction temperature analysis of power semiconductor devices显示文摘 | Xu Dewei Lu Haiwei Huang Lipei | 2002 | IEEE Transations on Industry Applications2002，38，5： | 1 |
| 7 | Research on inertia identification and auto-tuning of speed controller for AC servo system显示文摘 | Guo Yujie Huang Lipei Muramatsu M | 2002 | Proceedings of the Power Conversion Conference Osaka2002，2，： | 1 |
| 8 | A new robust controller to improve the dynamic performance of induction motors显示文摘 | FENG Guang LIU Yanfei HUANG Lipei | 2004 | IEEE Transactions on Power Electronics2004，19，6： | 1 |
| 9 | Online identification of permanent magaet flux based on extended Kalman filter for IPMSM drive with position sensorless control 显示文摘 | SHI Yuehao SUN Kai HUANG Lipei | 2012 | IEEE Transac- tions on Industrial Electronics2012，59，11： | 1 |
| 10 | A novel commutation method of matrix converter fed induction motor drive using RB-IGBT 显示文摘 | Sun Kai Zhou Daning Huang Lipei | 2007 | IEEE Transactions on Industry Applications2007，43，3： | 1 |
| 11 | Inertia Identification and Auto-Tuning of Induction Motor Using MRAS 显示文摘 | Guo Yujie Huang Lipei Qiu Yang | 1998 | IEEE Trans- actions on Industry Electronics1998，42，5： | 1 |
| 12 | An overmodulation method for PWM-inverter-fed IPMSM drive with single current sensor显示文摘 | SUN Kai WEI Qing HUANG Lipei | 2010 | IEEE Trans on Industrial Electronics2010，57，10： | 1 |
| 13 | Insights into the generation of laser-induced assembly of MoSe_(2) nanospheres显示文摘Laser-induced assembly is a promising technology for advancing micro/nano photonic devices.However,the dynamic process and the photothermal interaction in laser-induced assembly technique,as well as the role of laser illumination pattern on the assembly structure have not been well investigated.In this paper,we prepare dark MoSe_(2) nanospheres with a facile solvothermal synthesis method and grow a concentric ring-shaped assembly with incident light following Fresnel circular-aperture diffraction.The impact of the illumination light filed on the structure of the assembly is investigated.The concentric ring-shaped assembly reveals focusing effect with about 4.87 times intensity amplification.Optical trap effect,photothermal effect,and tension effect are proved to synergistically enhance the trap stiffness and broaden trap region.This work gives an insight into the production of laser induced assembly,hence broadens the potential application of nanoparticles and assembly in micro-optics and photonic devices. | Gangshuo Liu Zengxin Huang Chao Yan Shanshan Li Can Xu Lipei Song Dengfeng Kuang | 2022 | Nano Research2022，15，7： | 1 |
| 14 | Online identification of permanent magnet flux based on ex- tended Kalman filter for IPMSM drive with position sensorless control 显示文摘 | SHI Yuchao SUN Kai HUANG Lipei | 2012 | IEEE Transactions on Industri- al Electronics2012，59，11： | 1 |
| 15 | A new robust control to improve the dynamic performance of induction motors 显示文摘 | FENG Guang LIU Yanfei HUANG Lipei | 2001 | PESC2001，2，： | 1 |
| 16 | Power loss and junction temperature analysis of power semiconductor devices显示文摘 | Xu Dewei Lu Haiwei Huang Lipei | 2002 | IEEE Transactions on Industry Applications2002，38，5： | 1 |
| 17 | A novel commutation method of matrix converter fed induction motor drive using RB-IGBT显示文摘 | Sun Kai Zhou Daning Huang Lipei | 2007 | IEEE Transactions on Industry Applications2007，43，3： | 1 |
| 18 | Digitally controlled UPS inverter with dead time and output current compensation显示文摘 | Liu Yadong Xing Yan Huang Lipei etal | 2006 | J T singhua University(Sci&Tech)2006，46，1： | 1 |
| 19 | YAP mediates the positive regulation of hnRNPK on the lung adenocarcinoma H1299 cell growth显示文摘Lung cancer is the leading cause of cancer death worldwide, and non-small cell lung cancer (NSCLC) accounts for 80%–85% of diagnostic cases. The molecular mechanisms of NSCLC pathogenesis are not well understood. Heterogeneous nuclear ribonucleoprotein K (hnRNPK) is a multifunctional protein that regulates gene expression and signal transduction and closely associated with tumorigenesis, but its mechanism of action in the pathogenesis of NSCLC is unclear. In this study, we observed that the expression pattern of hnRNPK in H1299 lung adenocarcinoma cells varied depending on the cell density in culture. Moreover, hnRNPK stimulated the ability of proliferation and colony formation of H1299 cells, which is important for the multilayered cell growth in culture. We further investigated whether there is an association between hnRNPK and the elements involved in the cell contact inhibition pathway. By using quantitative reverse transcriptase-polymerase chain reaction assay and a YAP activity reporter system, we found that hnRNPK upregulated the mRNA and protein levels and transcriptional activity of Yes-associated protein 1 (YAP), a master negative regulator of Hippo contact inhibition pathway. Furthermore, YAP knockdown with siRNA abolished the stimulatory effect of hnRNPK on H1299 cell proliferation. These results suggested that YAP could be one of the effectors of hnRNPK. Our data may provide new clues for further understanding the biological functions of hnRNPK, particularly in the context of lung adenocarcinoma oncogenesis. | Lipei Xu Tingting Zhang Wensi Huang Xiaohui Liu Junlei Lu Xuejuan Gao Yun-Fang Zhang Langxia Liu | 2019 | Acta Biochimica et Biophysica Sinica2019，51，7： | 1 |
| 20 | DSP-based implementation of matrix converter显示文摘 | Deng Yisheng Sun Yuping Huang Lipei | 2002 | IEEE Tencon2002，，2： | 1 |
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