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)09-3317-08 Direction finding error of spatial baseline algorithm based on spherical array SI Weijian, ZHAO Pinjiao, LIU Lutao (College of Information and Communication Engineering, Harbin Engineering... baseline algorithm, a novel algorithm based on spherical array was proposed. Firstly, the phase difference expressions of incident signal impinging on the different antennas were deduced on the basis......
channel angular extrusion,HCAE)等.本文作者依据ECAP剧烈塑性剪切和等截面重复变形的特点,将"球形分流"和"膨胀挤压"的概念引入传统ECAP技术,提出了一种制备块体UFG材料的新型复合SPD工艺-等通道球形转角膨胀挤压(Equal channel angular expansion extrusion with spherical cavity,ECAEE-SC.... Simulation and experimental validations of novel process entitled equal channel angular expansion extrusion with spherical cavity WANG Xiao-xi1, ZHANG Xiang2, 3, JIN Xu-chen1, HUANG Chuan-hui1, HE Min1 (1......
. voce model and Cockcroft-Latham ductile damage criterion were introduced into the numerical simulation of spherical bulging and simulation approach was employed to compare with the experimental.... The method of material parameters identification based on finite element simulation and simple tests has high accuracy and can be applied conveniently. Key words: aluminum alloy; spherical bulging; ductile......
and finer, the strength and plasticity of liquid metal die-casting are improved. The microstructure in semi-solid die-casting shows regular spherical grains. Compared with liquid metal die-casting, the strength in semi-solid die-casting is slightly improved, and showing a better plasticity. Key words: rheocasting; thermal electromagnetic stirring; spherical grains; strength; plasticity 半固态铸造技术......
键词:球罐; NK-HITEN610U2钢; SSC; 焊接接头; spherical tank; NK-HITEN610U2 steel; H2S stresscracking; welded joint; [全文内容正在添加中] ......
. The results show that spherical ultrafine α-Al2O3 powder with non-aggregation and the average particle size of about 2 μm was produced under the conditions: mole ratio of CO(NH2)2 to Al2(SO4)3 is 10?1, initial concentration of Al2(SO4)3 is 0.05 mol/L, reaction temperature is 90 ℃ and the reaction time is 60 min. Key words: ultrafine α-Al2O3 powder; homogenous precipitation; dispersion; spherical......
性能;高温性能;Er(OH)3;包覆 中图分类号:TQ150.7 文献标志码:A High-temperature performances of spherical Ni(OH)2 coated with Co(OH)2 and Er(OH)3 HE Wen-xiu1.... Analysis & Measurements Research Center, General Research Institute for Non-Ferrous Metals, Beijing 100088, China) Abstract: The spherical nickel hydroxide coated by Co(OH)2 and Er(OH)3 was prepared......
; Abstract: Spherical Li(Ni1/3Mn1/3Co1/3)O2 was prepared... as cathode materials for lithium ion batteries. The experimental results show that the spherical morphology of the spray-dried powers maintains during the subsequent heat treatment and the specific......
of double phenol-formaldehyde resin carbon-coating process on performances for spherical graphite ZHOU Hongming1, 2, LI Yanfen1, LI Jian1, 2, ZHU Yuhua1 (1. School of Materials Science and Engineering... and BET. Electrochemical behaviors of samples were studied by galvanostatic charge/discharge test. The results show that the flake particles of the spherical graphite exhibits smooth surface......
) with spherical shape and smooth surface. Furthermore, the spray drying-derived phosphors have higher photoluminescence(PL) intensity than those by citrate gel method, but still a little lower than those by the solid state method. Key words:optics; solid state chemistry; spherical phosphor; spray drying; rare earth borate; [全文内容正在添加中] ......