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Numerical Simulation of Temperature and Stress Fields of Ti-Alloy Thin-well Barrel during Quenching Process LI Yan-zeng1,WU Kun1,YAN Mu-fu1 (1.School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, China) 摘要:The mathematical models have been established to describe the temperature and stress profiles in Ti6Al4V cylinder during quenching. The residual stress......
of initial concentration of metal ions on adsorption 图4 温度对羊栖菜吸附Cu2+ 的影响 Fig. 4 Effect of temperature on biosorption of Cu2+ by S.fusiforme 2.1.5 离子强度 2.1.5.1 干扰离子 图5表明,吸附液中存在Na+,Ca2... water treatment technology[J]. Safety and Environmental Engineering, 2006, 13(3): 63-65. [2] KUMAR S R, AGRAWAL M, MARSHALL F. Heavy metal contamination of soil and vegetables in suburban areas......
文献标志码:A 文章编号:1672-7207(2013)10-4251-06 Prediction of temperature response in concrete under... Railway Construction, Central South University, Changsha 410075, China) Abstract: The response law of the temperature in concrete under the artificial simulation environment was investigated......
of Civil, Architectural & Environmental Engineering, 2011, 33(1): 36-42. [3] Elbadry M M, Ghail A. Temperature variations in concrete bridges[J]. Journal of the Structural Engineering, 1983, 109(10... and simulation on solar temperature field of large size concrete box girder GU Bin1, CHEN Zhijian2, CHEN Xindi3 (1. College of Civil and Transportation Engineering, Hohai University, Nanjing 210098, China......
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Institute Group, Beijing 100081, China摘 要:Fundamentals on the fast reduction of ultrafine iron ore at low temperature, including characterization... has some advantages over others: high productivity, low energy consumption, and environmental friendliness.关键词:......
Unascertained measurement evaluation model of environmental effection on Nujiang development PANG Yan-jun(庞彦军), LIU Li-min(刘立民), LIU Kai-di(刘开第) (School of Science, Hebei University of Engineering... index to sample. The results indicate that this model can be used to evaluate the environmental effect of water conservancy and hydropower development of nujiang. Key words: hierarchical structure......
Effect of thermal treating temperature on characteristics of silver-doped titania CHAI Li-yuan(柴立元)1, WEI Shun-wen(韦顺文)1, PENG Bing(彭 兵)1, LI Zhu-ying(李竹英)2 1. School of Metallurgical Science... when the powder is calcined at 400 ℃. With the increase of the calcination temperature from 400 to 700 ℃ , the grains of titania agglomerate and the particle size increases from 14 to 23......
heat-treated counterpart at different temperatures. The experimental results show that the ultimate tensile strengths of two alloys decrease very slowly with increasing temperature up to 200?C... failure was investigated by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). It shows that cyclic slip combined with environmental effect may be the main crack initiation......
法正确表征温度下降段,反之亦然.本文建立的分段余弦函数表达式模型,将自然环境温度日变化曲线可分为升温和降温2个阶段,能够更加准确地描述自然环境温度作用谱的波动规律,同时也能较精确地反映测试期内自然环境温度的波动趋势及一日温度的最高值与最低值(图3). 图3 自然环境温度变化 Fig. 3 Variation of environmental temperature 3.2... Congyu, WANG Lei, et al. Comprehensive effects of temperature and relative humidity on rebar corrosion in concrete[J]. Journal of Civil, Architectural & Environmental Engineering, 2012, 34(1......