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Extraction and purification of magnetic nanoparticles from strain of Leptospirillum ferriphilum GAO Jian(高 健)1, 2, XIE Jian-ping(谢建平)1, DING Jian-nan(丁建南)1, KANG Jian(康 健)1, 2, CHENG Hai-na(程海娜..., Xiangtan 410201, China Received 20 January 2006; accepted 24 April 2006 Abstract: The magnetic nanoparticles were extracted from Leptospirillum ferriphilum, strain YSK, isolated from acid mine......
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Analytical solutions of stress and displacement in strain softening rock mass around a newly formed cavityLU Yan-er (鲁燕儿)1, YANG Wu (杨武)2(1. State Key Laboratory of Geomechanics and Geotechnical... in strain softening rock mass around a newly formed cavity are derived with a three step-wise elasto-plastic model. Hoek-Brown criterion is adopted as the yielding criterion of rock mass. Damage......
J. Cent. South Univ. Technol. (2008) 15: 508-514 DOI: 10.1007/s11771-008-0096-6 Isolation and characterization of YNTC-1, a novel Alicyclobacillus sendaiensis strain DING Jian-nan(丁建南)1, 2, HE... acidothermophilic bacterial strain, YNTC-1, was isolated from an acidic hot spring in Tengchong, Yunan, China. YNTC-1 grows at pH value of 1.5-8.0 and temperature of 40-70 ℃, with optimal pH......
temperature and different strain rates based on molecular dynamics method. 2 Physical modeling and molecular dynamics simulation The lattice for the perfect single-crystal nickel nanowire is in the form... abruptly and some lattices slide on the cracking area at the moment, which results in a large number of lattice defects. Figures 1(d)-(e) show the nanowire morphologies after yielding state at the strain......
J. Cent. South Univ. (2017) 24: 1977-1985 DOI: https://doi.org/10.1007/s11771-017-3606-6 Measurement and evaluation of strain fields in T23 steel based on digital image correlation method LIN Lie..., Shanghai 200240, China; 2. School of Mechanical Engineering, Shanghai Dianji University, Shanghai 201306, China Central South University Press and Springer-Verlag GmbH Germany 2017 Abstract: Surface strain......
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s-1at 250 °C. Fig. 2 OM images of ZK60 magnesium alloy in as-cast (a), homogenized (b) states Fig. 3 OM images of ZK60 compressed to strain of 0.69 at different conditions Because of the HCP lattice...Trans. Nonferrous Met. Soc. China 24(2014) 930-939 Flow behavior and microstructure of ZK60 magnesium alloy compressed at high strain rate Yuan-zhi WU1,2, Hong-ge YAN3, Su-qin ZHU4, Ji-hua CHEN3......
中碳铌微合金钢的应变诱导析出行为赵英利1,2,时捷2,刘苏2,谢刚-1(1.云南省昆明市昆明理工大学材料与冶金工程学院2.北京市钢铁研究总院结构材料研究所)摘 要:通过应力松弛法验证了修正后的DS析出模型,得到了中碳铌微合金钢的应变诱导析出规律,结果表明:修改后的DS模型由于考虑了Si,Mn元素对碳氮化物应变诱导析出的影响,得到的PTT曲线与试验测得的曲线基本吻合,可用于Si,Mn含量较高的铌微合金钢应变诱导析出行为的预测;对于本试验用钢,PTT曲线具有典型的"C"型特征,鼻子温度在900℃左右,并且,随着应变......