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Experimental Study of Microstructure Evolution during Tempering of Quenched Steel and Its Application CHEN Nan1,SHI Wei1,YAO Ke-fu1,WANG Hong-peng1 (1.Mechanical Engineering Department, Tsinghua University, Beijing 100084, P.R. China) 摘要:Microstructure evolution during tempering of quenched steel was studied via dilatometric experiments.Temperature ranges of transformation were determined......
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Boshi Automation Co., Ltd., Harbin 150078, China Central South University Press and Springer-Verlag GmbH Germany, part of Springer Nature 2018 Abstract: In order to improve the trajectory tracking... is presented. The mathematical models of the robot, including kinematic model, dynamic model and spline trajectory planing, are established and verified. Since it is difficult to describe the real-time......
with the trajectory of unmanned aerial vehicle (UAV) in the capturing phase, and changed with the ideal landing area in the tracking phase. The UAV’s speed and position errors were calculated in the new coordinate system, the errors were corrected through the trajectory controller, and UAV accurate guidance was realized. An active service carrier UAV was regarded as the research object......
the voltage scan rate increases from 5 mV/s to 250 mV/s. Key words: RuO2·nH2O; film material; heat treatment; supercapacitor; phase evolution  ......
Constitutive model for casting magnesium alloy involving spherical void evolution CHEN Bin(陈 斌), PENG Xiang-he(彭向和), FAN Jing-hong(范镜泓), SUN Shi-tao(孙士涛) Department of Engineering Mechanics... containing numerous voids. These voids will evolve during material deformation and markedly affect material behaviors, so it is important to investigate the equation of the void evolution......
对磁浮列车运行的适用性和优化效果更好. 关键词:铁路运输;中速磁浮;速度曲线;辅助停车区;Pareto 中图分类号:U293.1 文献标志码:文献标识码:A 文章编号:1672-7207(2019)06-1499-08 Optimal energy-efficient trajectory planning... to optimize energy-efficient trajectory of multiple sections under the constraint of the target running time. And then the model was given a resolving thought based on different switching point......
-rocker planetary gear train was discussed, and the mathematical model of the seedling pick-up mechanism was established. The static trajectory of seedling pick-up mechanism was analyzed and optimized through MATLAB programming, four main parameters influencing the trajectory characteristics of seedling pick-up arms were optimized by choosing different numbers, and a series of optimal structural......
Interplay between Micro-Anisotropy and Macro-Isotropy on Evolution of Non-Equilibrium Morphology Liu Huifang1,Liu Rong1,Wang Jiyang2,Zhao Shanrong1 (1.China University of Geosciences, Wuhan 430074... between micro-anisotropy of crystal structure vs macro-isotropy of undercooling in crystal growth system will control the morphological evolution. The nucleation rate related to the anisotropy......
Preparation and electrocatalytic properties of Ti/IrO2-Ta2O5 anodes for oxygen evolution LI Bao-song(李保松), LIN An(林 安), GAN Fu-xing(甘复兴) School of Resource and Environmental Science, Wuhan University, Wuhan 430079, China Received 20 October 2005; accepted 7 March 2006 Abstract: The preparation and electrocatalytic activity for oxygen evolution of the thermally prepared Ti anodes coated......