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| 1 | Numerical simulation of electro-magnetic and flow fields of TiAl melt under electric field显示文摘This article aims at building an electromagnetic and fluid model, based on the Maxwell equations and Navier-Stokes equations, in TiAl melt under two electric fields.FEM (Finite Element Method) and APDL (ANSYS Parametric Design Language) were employed to perform the simulation, model setup, loading and problem solving.The melt in molds of same cross section area with different flakiness ratio (i.e.width/depth) under the load of sinusoidal current or pulse current was analyzed to obtain the distribution of electromagnetic field and flow field.The results show that the induced magnetic field occupies sufficiently the domain of the melt in the mold with a flakiness ratio of 5:1.The melt is driven bipolarly from the center in each electric field.It is also found that the pulse electric field actuates the TiAl melt to flow stronger than what the sinusoidal electric field does. | Zhang Yong Ding Hongsheng Jiang Sanyong Chen Ruirun Guo Jingjie | 2010 | China Foundry2010，7，3： | 6 |
| 2 | Influences of pulse electric current treatment on solidification microstructures and mechanical properties of Al-Si piston alloys显示文摘Three kinds of Al-Si piston alloys were prepared and subjected to pulse electric current treatment (PECT)at different pouring temperatures.Some aspects of the solidification microstructures were examined including the morphology and the distribution of the matrix and the secondary phases by using of optical microscopy(OM),SEM and EDS methods.Results indicate that PECT can refine the grains of a-Al in the alloys as effectively as chemical modification by sodium salt.The processing parameters of PECT on the multi-component Al-Si alloys were then optimized through the testing of tensile strength,elongation and microhardness of the prepared alloys.A new theory was put forward to explain the mechanism of PECT. | Ding Hongsheng Zhang Yong Jiang Sanyong Chen Ruirun Zhao Zhilong Guo Jingjie Xu Daming Fu Hengzhi | 2009 | China Foundry2009，6，1： | 6 |
| 3 | GLP-2 Receptor Localizes to Enteric Neurons and Endocrine Cells Expressing Vasoactive Peptides and Mediates Increased Blood Flow显示文摘 | Xinfu Guan Heidi E. Karpen John Stephens John T. Bukowski Sanyong Niu Guangcheng Zhang Barbara Stoll Milton J. Finegold Jens J. Holst Darry L. Hadsell Buford L. Nichols Douglas G. Burrin | 2006 | Gastroenterology2006，，1： | 1 |
| 4 | Effects of harmonic electric field frequency on electromagnetic and flow fields of Ti-Al melt in a rectangular mold based on numerical simulation显示文摘A model was established based on Maxwell's equations and Navier-Stokes' equations to numerically simulate the electromagnetic field and flow field in a rectangular mold with sectional aspect ratio of 5:1. The FEM (Finite Element Method) and APDL (ANSYS Parametric Design Language) were employed for the model to execute the modeling, meshing, load applying and solving. The Ti-Al alloy melt was selected to illustrate and validate the effects of the harmonic field frequency on the distribution of the physical fields in the mold. The simulated results demonstrate that with an increasing frequency the electric current forms an ellipsoid cavity where it becomes much weaker, and that the melt flows more intensely with low frequency (less than 5 kHz) than with high frequency (more than 5 kHz). The melt is pinched from the central part in the mold to bipolar parts in which it forms two vortexes in each side. The maximum value of fluid velocity exists near the bipolar zone. | Ding Hongsheng Zhang Yong Jiang Sanyong Chen Ruirun Guo Jingjie | 2010 | China Foundry2010，7，4： | 1 |
| 5 | COD reduction and Decolorization of Textiole Effulent Using a Combined Process 显示文摘 | Sanyong Kim Chulhwan Park Tak-Hyun Kim | 2003 | Journal of Bioscience and Bioengineering2003，95，1： | 1 |
| 6 | Polymerization of Butyl Methacrylate Catalyzed by Salicylaldehyde-Imine Zirconium/Al(i-Bu)_3 System显示文摘A new kind of zirconium(Zr) complex containing ligand of salicylaldehyde-imine was successfully synthesized with ZrCl_4·2 THF and salicylaldehyde-imine as raw materials. The ligand was characterized by means of ~1HNMR, IR, and GC-MS, and Zr complex was characterized by means of ~1HNMR and IR, respectively. The Zr complex, combined with co-catalyst of Al(i-Bu)_3, was explored to be effective catalytic system for the polymerization of butyl methacrylate(BMA), to prepare poly-n-butyl methacrylate(PBMA), which was characterized by IR, ~13C-NMR and GPC. Compared with other double-component(MAO/Cat, AlEt_3/Cat) catalytic systems, catalytic system of Al(i-Bu)_3 and the Zr complex provided the best catalytic activity under the same conditions. The influence of polymerization parameters, such as molar ratio of Al(i-Bu)_3/Cat and BMA/Cat, polymerization temperature and polymerization time, was studied with Zr complex/Al(i-Bu)_3 system. With increasing polymerization time from 4 to 24 hour, the monomer conversion increased from 40.14% to 96.56%. Viscosity-average molecular weight(M_v) of PBMA, detected by the viscosity methodology, increased from 12.67×10~4Da to 44.97×10~4Da and lower molecular weight distribution was obtained. According to these results, the Zr complex contained ligand of salicylaldehyde-imine was a kind of readily, long lifetime and high activity catalyst for BMA polymerization. | 程正载 TANG Ran 谢聪 WANG Yun DING Ling WANG Handing YAN Xiaochao ZHU Sanyong Gauthier Mario | 2018 | Journal of Wuhan University of Technology(Materials Science)2018，33，2： | 0 |
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