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INVESTIGATION ON THE DENSITY UNIFORMITY OF PRESSED PARTS BY LOW-VOLTAGE ELECTROMAGNETIC COMPACTION Z.H.Meng1,Y.C.Li1,S.Y.Huang2,B.Zhang1,W.Ouyang1 (1.Wuhan University of Technology, Wuhan 430070... and special materials working under limited conditions. Research and development of new efficient technology to form high-density,high-performance and net shape parts is a key to widen application......
Kernel density estimation and marginalized-particle based probability hypothesis density filter for multi-target trackingZHANG Lu-ping(张路平), WANG Lu-ping(王鲁平), LI Biao(李飚), ZHAO Ming(赵明) (College of Electronic Science and Engineering, National University of Defense Technology,Changsha 410073, China)Abstract:In order to improve the performance of the probability hypothesis density (PHD) algorithm......
Density functional theory study on hydrogenation mechanism in catalyst-activated Mg(0001) surface WU Guang-xin(吴广新)1, LIU Su-xia(刘素霞)1, ZHANG Jie-yu(张捷宇)1, WU Yong-quan(吴永全)1, LI Qian(李 谦... of Fe3O4 catalyst is known to substantially improve the adsorption and desorption thermodynamics and kinetics of Mg-based materials. Using density functional theory in combination with nudged elastic......
J. Cent. South Univ. (2017) 24: 1299-1306 DOI: 10.1007/s11771-017-3535-4 Outlier detection based on multi-dimensional clustering and local density SHOU Zhao-yu(首照宇), LI Meng-ya(李萌芽), LI Si-min(李思敏... of each potential outlier. In this work, an effective outlier detection method based on multi-dimensional clustering and local density (ODBMCLD) is proposed. ODBMCLD firstly identifies the center objects......
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J. Cent. South Univ. (2018) 25: 84-94 DOI: https://doi.org/10.1007/s11771-018-3719-6 A background refinement method based on local density for hyperspectral anomaly detection ZHAO Chun-hui(赵春晖... method based on the local density is proposed to remove the anomalies from the background. In this work, the local density is measured by its spectral neighbors through a certain radius which......
J. Cent. South Univ. Technol. (2010) 17: 674-682 DOI: 10.1007/s11771-010-0539-8 Effect of Nb on plasticity and oxidation behavior of TiAlNb intermetallic compound by density functional theory LI...; Abstract: Based on the pseudo potential plane-wave method of density functional theory (DFT), Ti1-xNbxAl (x=0, 0.062 5, 0.083 3, 0.125, 0.250) crystals’ geometry......
Effect of process parameters on density of magnesium alloy parts by low-pressure expendable pattern casting LI Ji-qiang(李继强), FAN Zi-tian(樊自田), DONG Xuan-pu(董选普) State Key Laboratory of Material... and density distribution. The results indicate that the pouring temperature with LP-EPC process is lower than it in gravity casting. The selected process parameters, such as vacuum, filling velocity......
J. Cent. South Univ. (2017) 24: 2288-2293 DOI: https://doi.org/10.1007/s11771-017-3640-4 Electronic structure and flotability of gold-bearing pyrite: A density functional theory study LIU Dan(刘丹... of pyrite were theoretically investigated and fully discussed by performing density functional theory (DFT). The calculated incorporation energy shows that gold would most likely exist in pyrite via......