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Modeling approaches to pressure balance dynamic system in shield tunnelingLI Shou-ju(李守巨)1, YU Shen(于申)1, QU Fu-zheng(屈福政)2(1. State Key Laboratory of Structural Analysis for Industrial Equipment... of a pressure balance system with time-delay, nonlinear, time-varying and uncertain characteristics, an intelligent modeling procedure is proposed, which is based on artificial neural network (ANN) and input......
J. Cent. South Univ. (2012) 19: 17-21 DOI: 10.1007/s11771-012-0966-9 Effect of heat treatment of Mn-Cu precursors on morphology of dealloyed nanoporous copper TAN Xiu-lan(谭秀兰)1, LI Kai(李恺)1, NIU Gao... a free corrosion method. The effects of heat treatment of Mn-Cu precursors on alloy phase, morphology and composition of the resultant nanoporous copper were investigated. It is revealed......
Factors governing heat affected zone during wire bonding SUN Li-ning(孙立宁)1, LIU Yue-tao(刘曰涛)1, 2, LIU Yan-jie(刘延杰)1 1. State Key Laboratory of Robotics and System, Harbin Institute of Technology... packaging, heat affect zone (HAZ) is an important factor governing the loop profile of bonding. The height of loop is affected by the length of the HAZ. Factors governing the HAZ were studied......
Determination method of load balance ranges for train operation safety under strong windTIAN Hong-qi(田红旗) (Key Laboratory of Traffic Safety on Track of Ministry of Education(School of Traffic... to the principle of static moment balance of vehicles, the overturning coefficients of trains with different wind speeds and wall heights were obtained. Based on the influence of wind speed and wall......
ARTICLE J. Cent. South Univ. (2019) 26: 1306-1326 DOI: https://doi.org/10.1007/s11771-019-4089-4 Analysis of behaviour of computational model to evaluate performance of heat pipe containing... (SP), Brazil Central South University Press and Springer-Verlag GmbH Germany, part of Springer Nature 2019 Abstract: Application of nanofluids in heat pipes usually presents satisfactory experimental......
Effects of solution heat treatment on microstructure and mechanical properties of AZ61-0.7Si magnesium alloy YANG Ming-bo(杨明波)1, LIANG Xiao-feng(梁晓峰)1, LI Hui(李 晖)1, PAN Fu-sheng(潘复生)2 1... 400044, China Abstract: The effects of solution heat treatment on the microstructure and mechanical properties of AZ61-0.7Si magnesium alloy were investigated. The results indicate that the solution......
Effects of heat treatment on morphological, optical and electrical properties of ITO films by sol-gel technique LI Zhi-hua(李芝华), KE Yu-peng(柯于鹏), REN Dong-yan(任冬燕) School of Materials Science... of different heat treatment temperatures and cooling methods on the morphological, optical and electrical properties of ITO films were measured by TG/DTA, IR, XRD, SEM, UV-VIS spectrometer and four-probe......
; heat balance 1 Introduction The use of lightweight materials is effective in conserving energy and reducing emission. Aluminium alloy is an ideal material for automobile lightweight components due... of the extrudate along the extrusion direction obtained by adopting isothermal extrusion is about 6.9 °C. Furthermore, the heat generated by plastic deformation and friction during extrusion......
to obtain rods, which were subsequently hot extruded. The chemical composition of the experimental material was 9.6% Al, 4.1% Fe, 4.2% Ni, 1.2% Mn (mass fraction), and balance Cu. The heat treatments provided... Effect of heat treatment on microstructure and properties of hot-extruded nickel-aluminum bronze CHEN Rui-ping(陈瑞萍), LIANG Ze-qin(梁泽钦), ZHANG Wei-wen(张卫文), ZHANG Da-tong(张大童), LUO Zong-qiang(罗宗强......
J. Cent. South Univ. (2019) 26: 3200-3212 DOI: https://doi.org/10.1007/s11771-019-4246-9 Experimental investigation on boiling heat transfer and pressure drop of R245fa in a horizontal micro-fin... heat transfer and frictional pressure drop of R245fa in a 7 mm horizontal micro-fin tube was performed. The results show that in terms of flow boiling heat transfer characteristics, boiling heat......
