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J. Cent. South Univ. Technol. (2008) 15(s1): 243-246 DOI: 10.1007/s11771-008-355-6 Drag reduction by linear viscosity model in turbulent channel flow of polymer solution WU Gui-fen..., China; 2. Shanghai Maple Automobile Co. Ltd, Shanghai 201501, China) Abstract: A further numerical study of the theory that the drag reduction in the turbulence is related to the viscosity profile......
Reduction behavior of hematite in the presence of cokeZe-hong Wang1,Guo-feng Li1,2,Yong-sheng Sun1,Ming-zhao He31. College of Resources and Civil Engineering,Northeastern University2. College of Mining Engineering,North China University of Science and Technology3. CITIC Pacific Mining Management Pty Ltd.摘 要:The reduction kinetics of hematite......
Reduction behavior of tungsten oxide with and without scandia dopingJin-Shu Wang,Qiang Zhao,Tao Liu,Wei HeSchool of Materials Science and Energy,University of Electronic Science and Technology摘 要... method.The reduction behavior and kinetics of pure WO3 and Sc2 O3-doped WO3 were studied by temperatureprogrammed reduction(TPR) method.It is found that scandia doping can decrease the reduction......
Fig.5 Analysis of XPS at spectrum 1 in Fig.4 Fig.6 Analysis of XPS at spectrum 2 in Fig.4 3 Mechanism analysis In order to explore the reaction mechanism of direct electro-reduction of titanium... O, Mem J O M. Calciothermic reduction of TiO2 [J]. Min Met Mater Soc, 2002, 54(2): 59-61. [9] Suzuki R O, Ono K. Reaction mechanism of direct electro-reduction of titanium dioxide in molten calcium......
Dynamic self-adaptive ANP algorithm and its application to electric field simulation of aluminum reduction cellWANG Ya-lin(王雅琳), CHEN Dong-dong(陈冬冬), CHEN Xiao-fang(陈晓方), CAI Guo-min(蔡国民), YANG Chun... (FEM) has been given. By taking the electric field of aluminum reduction cell (ARC) as the research object, the performance of two classical RP methods, which are Al-NASRA and NGUYEN partition (ANP......
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二元合金热力学模型-Miedema模型吴春峰1,李慧改1,郑少波1,杨存波1(1.上海市上海大学材料科学与工程学院)摘 要:由于只需几个物性参数和设定常数,Miedema模型就能简单地计算二元合金液相或者固相的热力学数据,而且计算值与实验值吻合度较高,因而被广泛应用于二元合金热力学的计算.在介绍了该理论的物理模型的基础上详细阐述了Miedema半经验公式的推导以及物性参数和常数的确定,并对此模型的应用和误差做了客观的分析和总结.关键词:二元合金; Miedema模型; 电负性; 电子密度......
Thermodynamic studies on gas-based reduction of vanadium titano-magnetite pelletsJun-wei Chen,Yang Jiao,Xi-dong Wang摘 要:Numerous studies have focused on the reduction thermodynamics of ordinary iron ore; by contrast, the literature contains few thermodynamic studies on the gas-based reduction of vanadium titano-magnetite(VTM) in mixed atmospheres of H2......
Preparation of TiC powders by carbothermal reduction method in vacuum SEN Wei1, 2, 3, XU Bao-qiang1, 2, YANG Bin1, 2, SUN Hong-yan1, 2, SONG Jian-xun1, 2, WAN He-li1, 2, DAI Yong-nian1, 2 1... by carbothermal reduction of TiO2 in vacuum was investigated by XRD, SEM, XRF and laser particle sizer. Thermodynamic analysis indicates that it is easy to prepare TiC in vacuum and the formation sequence......