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Engineering University, Harbin 150001, China;2. Luoyang Ship Material Research Institute, Luoyang 471000, China)Abstract:Hydrogen trapping behavior has been investigated by means of thermal desorption spectroscopy (TDS) for a high strength steel after it was tempered at the temperatures of 430 °C, 500 °C and 520 °C, respectively. the loss of ductility was characterized by slow strain rate test (SSRT......
; 文章编号:1672-7207(2013)12-4903-07 Nonsmooth controller design of ship steering with saturation WANG Guofeng, ZHENG Kai, WANG Xingcheng (Information Science and Technology College, Dalian Maritime University, Dalian 116026, China) Abstract: In order to overcome the design problem of ship steering control caused by the limited motion of the steering engine, a new nonsmooth feedback control law......
of Materials Science and Engineering, Shanghai Jiao Tong University2. Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration, Shanghai Jiao Tong University3. Scholl of Nuclear Science and Engineering, Shanghai Jiao Tong University摘 要:Atom probe tomography was utilized to investigate Cu precipitation in a high-strength low-alloy steel......
Experimental investigation of axially loaded steel fiber reinforced high strength concrete-filled steel tube columnsLU Yi-yan(卢亦焱), LI Na(李娜), LI Shan(李杉), LIANG Hong-jun(梁鸿骏) (School of Civil Engineering, Wuhan University, Wuhan 430072, China)Abstract:an experimental study on the compressive behavior of steel fiber reinforced concrete-filled steel tube columns is presented. specimens were tested......
ability to achieve high contouring accuracy.Key words:layered modeling; ship model machining; motion control; cross coupling control......
Institute of Technology, 2015, 47(3): 107-110. [6] 芮孟暧. 高强度船体钢及其超细晶强化工艺研究[D]. 上海: 上海海事大学船舶与海洋工程学院, 2006: 7-8. RUI Mengai. High strength hull steel and its ultrafine grained strengthening technology[D... 100083, China; 2. Baosteel Shanghai Meishan Iron & Steel Co. Ltd., Nanjing 210039, China) Abstract: In order to analyze the influence of different laminar cooling technology on residual stress......
Numerical Prediction of Compound Layer Growth of Steel En40B during Plasma Nitriding WU Kun1,LEI Ting-quan1,YAN Mu-fu1,DAI Ya-nan1 (1.School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, China) 摘要:This paper deals with the kinetics of compound layer growth of steel En40B plasmas nitrided at 520℃ for different time and establishes the corresponding mathematical......
examples illustrate the effectiveness of the proposed methods. Key words: support vector machine; penalty parameter; null solution; convex hull 基于结构风险最小化原理的统计学习理论是近年来计算学习理论的重要研究成果,为研究有限训练样本情况下的统计模式识别...,但求解得到的不是平凡解,所以推论1只是充分条件,不是必要条件. 图4 重心都落在另一类的闭凸包内且不产生平凡解的情况 Fig.4 Center of gravity falling within closed convex hull of other class and not generating null solutions 推论2 在特征空间中,数目相同......
; 文献标志码:A 文章编号:1672-7207(2010)04-1379-06 Fault diagnosis on cooling system of ship diesel engine based on Bayes network classifier... and uncertainty of fault diagnosis data from cooling system of ship diesel engine, Naive Bayes (NB) and tree augmented naive Bayes (TAN) diagnostic model on cooling system of ship diesel engine were set up......
Corrosion characteristics of steel in seawater containing various chloride concentrations generated by electrochemical method Seong-Jong KIM, Seok-Ki JANG Division of Marine... organisms in ship ballast water via electrochemically produced chloride, was developed. The current density for potentiostatic experiments subjected to seawater with an applied potential (-0.1 V......
