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| 1 | Effects of Axial Non-uniform Tip Clearances on Aerodynamic Performance of a Transonic Axial Compressor显示文摘这篇论文在一个接近音速的轴的压缩机转子(NASA 转子 37 ) 的空气动力学的表演上论述轴的不一致的尖端清理的效果的数字调查。在转子经过以内的三维的稳定的流动地以 17188.7 rpm 的设计车轮速度与 0.356 公里的资料尖端清理被模仿。模拟结果与测量结果很好一致,它验证了数字方法。然后,在转子经过以内的三维的稳定的流动地与不同轴的不一致的尖端清理分别地被模仿。计算结果证明最佳的轴的不一致的尖端清理能改进压缩机表演,当效率和压缩机的压力比率被增加时。流动机制是轴的不一致的尖端清理能削弱尖端漏旋涡,在界面层刮倒低精力的液体并且减少流动阻塞和尖端损失。 | Hongwei MA Baihe LI | 2008 | Journal of Thermal Science2008，17，4： | 9 |
| 2 | Bimetal nickel-cobalt phosphide directly grown on commercial graphite substrate by the one-step electrodeposition as efficient electrocatalytic electrode显示文摘It is challenging to find a method to obtain a catalyst with low cost and efficient multifunctional performances.Herein,in order to obtain the electrode with high-performance water splitting and non-enzymatic glucose de-tection,the commercial graphite sheet(GS)with excellent durability and electroconductivity was used as substrate material,and the non-noble ternary component Ni-Co-P catalyst with hierarchical architecture was fabricated on GS via a co-electrodeposition.The catalyst only required low overpotentials of 44.6,76.5 and 49 mV to drive the current density of 10 mA cm^-2 alongside with the smaller Tafel slopes of 39.2,44.8 and 112 mV dec-1 for hydrogen evolution reaction(HER)in 1.0 M KOH,0.5 M H2SO4 and 1.0 M PBS solution,respectively.For oxygen evolution reaction(OER),the catalyst demonstrated a low overpotential of 304 mV to achieve the current density of 20 mA cm^-2 with excellent Tafel slope of 89.8 mV dec-1 in alkaline solution.Furthermore,the Ni-Co-P/GS electrode serving as non enzymatic glucose sensor exhibited the superior elec-trocatalytic activity with an ultrahigh sensitivity of 7400μA mM^-1 cm^-2,low detection limit of 0.425μM(S/N=3),and wide linear range(1-1200μM). | Alan Meng Haiqin Zhang Baihe Huangfu Wenli Tian Liying Sheng Zhenjiang Li Shuqin Tan Qingdang Li | 2020 | Progress in Natural Science:Materials International2020，30，4： | 1 |
| 3 | Microstructure Study of Ti-24Al-14Nb-3V Alloy显示文摘The microstructure of Ti-24Al-14NB-3V intermetallic alloy with solution treated was investigated by trans mission electron microscopy (TEM) and selected area electron diffraction (SAD) in conjunction with X-ray energydispersive spectroscopy (EDS) techniques. It shown that =50% ductile βo-phase and small amount of O phase,and α2 with the number of dislocations having c-component resulted in increasing slip system of the material, havecontributed to a good combination of strength and ductility at room temperature. Owing to some reciprocal planes ofsimilarity between α2 and O Phases, to distinguish both of two phases, a series of diffraction patterns obtained bytilting around one reciprocal direction of the phase are needed based on the systematic extinction and reciprocalplanes sequences occurred in the diffraction patterns, if those patterns are not containing one of three reciprocal unitvectors, a*, b*, c* in terms of the crystal unit cell, a, b, c. | MIAO Baihe LI Shiqiong BAI Yuanqiang ZHANG Jianwei ZOU Dunxu(Department of Materials Science and Engineering, USTB, Beijing 100083, China)(Department of Superalloys, Central Iron and Steel Research Institute, Beijing 100081, China) | 1997 | International Journal of Minerals,Metallurgy and Materials1997，11，1： | 0 |
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