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Automated ex-situ detection of pitting corrosion and its effect on the mechanical integrity of rare earth magnesium alloy-WE43

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Bioactive Materials 2022年第2期7卷 545-558页

作者： Kerstin van Gaalen Felix Gremse Felix Benn Peter E.McHugh Alexander Kopp Ted J.Vaughan Biomechanics Research Centre(BioMEC) Biomedical EngineeringSchool of EngineeringCollege of Science and EngineeringNational University of Ireland GalwayGalwayIreland Meotec GmbH AachenGermany Institute for Experimental Molecular Imaging RWTH Aachen UniversityAachenGermany school of Mechanical and Aerospace Engineering Queen’s University BelfastBelfastUnited Kingdom

This study develops a three-dimensional automated detection framework(PitScan)that systematically evaluates the severity and phenomenology of pitting *** framework uses a python-based algorithm to analyse microcomputer-tomography scans(μCT)of cylindrical specimens undergoing *** approach systematically identifies several surface-based corrosion features,enabling full spatial characterisation of pitting parameters,including pit density,pit size,pit depth as well as pitting factor according to ASTM ***,it is used to evaluate pitting formation in tensile specimens of a Rare Earth Magnesium alloy undergoing corrosion,and relationships between key pitting parameters and mechanical performance are *** demonstrated that several of the parameters described in ASTM G46-94,including pit number,pit density and pitting factor,showed little correlation to mechanical ***,this study did identify that other parameters showed strong correlations with the ultimate tensile strength and these tended to be directly linked to the reduction of the cross-sectional area of the ***,our results indicate,that parameters directly linked to the loss of the cross-sectional area(*** material width),are parameters that are most suited to provide an indication of a specimen’s mechanical *** automated detection framework developed in this study has the potential to provide a basis to standardise measurements of pitting corrosion across a range of metals and future prediction of mechanical strength over degradation time.

关键词： Magnesium Corrosion Degradation Micro-computer-tomography Pit detection automatization Mechanical integrity

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Defamiliarization: the Genius of Literary Device

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海外英语 2017年第12期 168-169,183页

作者：王闻 school of Foreign Languages China Three Gorges University

The Russian Formalists believed that literature distinguishes itself from non-literary language because it employs a whole range of devices that have a defamiliarizing effect. The ability to defamiliarize our perception is not a quality that certain techniques inherently possess, it is all a matter of how a certain technique functions within a given literary work.

关键词： defamiliarization Formalism structuralism automatization literariness

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The Research of Series-parallel Hybrid Power Press Based on Loose Coupling

The Research of Series-parallel Hybrid Power Press Based on ...

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2005国际机械工程与力学会议

作者： Ruiming WU Deyu SONG school of Mechanical ＆ Automotive Engineering Zhejiang University of Science and Technology

In the complex and automatization Press equipment, Hydraulic Press or mechanical Press are unable to meet fast work cycle, big pressure, high precision and multipoint union demands. The main problem is the limitation of mechanism. To solve these problems, energy control of Press is put forward. Series-parallel hybrid power Press was brought forward to meet working ability, efficiency and process precision. Series-parallel hybrid power Press achieved through various series and parallel mechanisms of power. Through analysis of electrical, mechanical and hydraulic systems about energy storage device, hybrid power Press and loose coupling of different energy based on fault-tolerant control were applied to improve Press performance and efficient. All power work together in an optimal manner with monitor. Low fuel consumption was realized. According to the design of Press, one power can start unrestrictedly without worrying about damage to the other power. To solve system chattering problem and the derivative compute of control signals, nonlinear differential and integral sliding adaptive control was introduced.

关键词： Series-parallel hybrid power Press Power control Redundancy Fault-tolerant Loose coupling

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自动导航车(AGV)发展综述

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中国制造业信息化（学术版） 2010年第1期39卷 53-59页

作者：张辰贝西黄志球南京航空航天大学信息科学与技术学院江苏南京210016 school of Engineering and Mathematical Sciences City University London

追溯了AGV的发展历史,介绍了AGV的工作原理和应用领域,论述了AGV的关键技术及最新技术成果,为AGV的应用提供了参考。

关键词：自动导航车发展综述

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