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Corrigendum to 'Foot trajectories and loading rates in a transfemoral amputee for six different commercial prosthetic knees: An indication of adaptability'[Medical engineering and Physics, Volume 68, June 2019, Pages 46-56]

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Medical engineering & physics 2024年 124卷 104030页

作者： Alireza Abouhossein Mohammed I Awad Hafiz F Maqbool Carl Crisp Todd D Stewart Neil Messenger Robert C Richardson Abbas A Dehghani-Sanij David Bradley Department of Ergonomics School of Public Health and Safety Shahid Beheshti University of Medical Sciences *** Tehran Iran Robotics Design and Optimisation Mechanical Engineering University of Leeds School of Mechanical Engineering Leeds LS2 9JT United Kingdom. Electronic address: a.abouhossein@leeds.ac.uk. Faculty of Engineering Ain Shams University Cairo Egypt. Department of Mechatronics & Control Engineering University of Engineering & Technology Lahore Faisalabad Pakistan. Robotics Design and Optimisation Mechanical Engineering University of Leeds School of Mechanical Engineering Leeds LS2 9JT United Kingdom. Institute Medical and Biological Engineering School of Mechanical Engineering University of Leeds Leeds LS2 9JT UK. School of Sport and Exercise Sciences University of Leeds Leeds LS2 9JT UK. Abertay University Bell Street Dundee DD1 1HG UK.

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Lateral force prediction using gaussian process regression for intelligent tire systems

arXiv

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arXiv 2020年

作者： Groenner Barbosa, Bruno Henrique Xu, Nan Askari, Hassan Khajepour, Amir Department of Automatics Federal University of Lavras CP 3037 Lavras MG37200-000 Brazil Department of Mechanical and Mechatronics Engineering University of Waterloo ONN2L3G1 Canada State Key Laboratory of Automotive Simulation and Control Jilin University Changchun Jilin130025 China Department of Mechanical and Mechatronics Engineering University of Waterloo ONN2L3G1 Canada

Understanding the dynamic behavior of tires and their interactions with road plays an important role in designing integrated vehicle control strategies. Accordingly, having access to reliable information about the tire-road interactions through tire embedded sensors is very demanding for developing enhanced vehicle control systems. Thus, the main objectives of the present research work are i. to analyze data from an experimental accelerometer-based intelligent tire acquired over a wide range of maneuvers, with different vertical loads, velocities, and high slip angles;and ii. to develop a lateral force predictor based on a machine learning tool, more specifically the Gaussian Process Regression (GPR) technique. It is delineated that the proposed intelligent tire system can provide reliable information about the tire-road interactions even in the case of high slip angles. Besides, the lateral forces model basedonGPRcanpredictforceswithacceptableaccuracy and provide level of uncertainties that can be very useful for designing vehicle control strategies. Copyright © 2020, The Authors. All rights reserved.

关键词： Tires

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A Bibliometric Analysis on Model-based Systems engineering

A Bibliometric Analysis on Model-based Systems Engineering

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IEEE International Symposium on Systems engineering (ISSE)

作者： Zihang Li Jinzhi Lu Guoxin Wang Lei Feng Didem Gurdur Broo Dimitris Kiritsis School of Mechanical Engineering Beijing Institute of Technology Beijing China ICT4SM Lab EPFL - École Polytechnique Fédérale de Lausanne Lausanne Switzerland Unit of Mechatronics and Embedded Control Systems KTH Royal Institute of Technology Stockholm Sweden Centre for Smart Infrastructure Laing O'Rourke Centre for Construction Engineering and Technology Centre for Digital Built Britain University of Cambridge Cambridge United Kingdom

Model-based systems engineering (MBSE) has been accepted as an extremely important approach to understanding the multi-domain research field comprehensively. In this paper, a bibliometric analysis is used to conduct a comprehensive survey of model-based systems engineering literature of the last five years. The VOSViewer is used to implement visual network analysis for co-authorship, citation, and co-occurrence of the MBSE related papers. The results of the bibliometric study, firstly, reveal the influential research teams and sources. Secondly, research hotspots in the current MBSE domain are identified. The findings of this study aim to help researchers to gain a faster and deeper understanding of the current literature on MBSE.

关键词： Analytical models Visualization Digital twin Bibliometrics Collaboration Tools Market research

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Preparation and Characterization of Novel Niln2s4/Uio-66 Photocatalysts for the Efficient Degradation of Antibiotics in Water

SSRN

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SSRN 2022年

作者： Wang, Anhu Liang, Huagen Chen, Fu Tian, Xinlong Jing, Shengyu Tsiakaras, Panagiotis Jiangsu Key Laboratory of Coal-based Greenhouse Gas Control and Utilization Low Carbon Energy Institute China University of Mining and Technology Xuzhou221008 China School of Materials Science and Engineering China University of Mining and Technology Xuzhou221008 China Key Laboratory of Fuel Cell Technology of Guangdong Province Guangzhou510640 China State Key Laboratory of Marine Resource Utilization in South China Sea Hainan Provincial Key Lab of Fine Chemistry School of Chemical Engineering and Technology Hainan University Haikou570228 China School of Information and Control Engineering China University of Mining and Technology Jiangsu Xuzhou221008 China Laboratory of Alternative Energy Conversion Systems Department of Mechanical Engineering School of Engineering University of Thessaly 1 Sekeri Str. Pedion Areos 38834 Greece

Photocatalysis is considered an economical, environmentally friendly, and effective technology for removing pollutants. The construction of Z-Scheme heterojunctions has been identified as one of the feasible solutions capable of enhancing the photocatalytic activity. Herein, a series of visible light responsive photocatalysts (NiIn2S4/Uio-66 composites) with excellent activity and stability were prepared by using a solvothermal process. It is found that 20 mg L-1 of tetracycline (TC) could be almost completely degraded under visible light irradiation within 1 h, when the mass ratio of NiIn2S4 to Uio-66 is 0.5:1 (NISU-0.5) and the solution pH=11. In addition, after six cycles, the degradation rate of tetracycline photocatalyzed by NISU-0.5 still reach up to 90%. Ultraviolet photoelectron spectra (UPS), X-ray photoelectron spectra (XPS) and electron spin resonance measurements (ESR) confirm the formation of the Z-Scheme heterostructure between NiIn2S4 and Uio-66. The synergistic effect between built-in electric field, energy band bending and coulomb interactions in interface of Z-Scheme heterojunction is conducive to restrain the recombination of photogenerated electrons and holes, which greatly improve the photocatalytic activity. In conclusion, this study offers a new thought for design and synthesis of Z-Scheme heterojunctions and provides a cost-effective strategy for solving environmental pollution and energy problems in the future. © 2022, The Authors. All rights reserved.

关键词： Nickel compounds

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Honeycomb-Structured IrOxFoam Platelets as the Building Block of Anode Catalyst Layer in PEM Water Electrolyzer

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Angewandte Chemie 2024年第3期137卷

作者： Zhoubing Xie Prof. Hui Chen Dr. Xiyang Wang Dr. Yimin A. Wu Zizhun Wang Dr. Subhajit Jana Prof. Yongcun Zou Prof. Xiao Zhao Dr. Xiao Liang Prof. Xiaoxin Zou State Key Laboratory of Inorganic Synthesis and Preparative Chemistry College of Chemistry Jilin University Changchun 130012 China Department of Mechanical and Mechatronics Engineering Waterloo Institute for Nanotechnology University of Waterloo Waterloo Ontario N2L 3G1 Canada Electron Microscopy Center Jilin University Changchun 130012 China School of Materials Science and Engineering Key Laboratory of Automobile Materials of MOE State Key Laboratory of Automotive Simulation and Control Electron Microscopy Center Jilin University Changchun 130012 China

Achieving robust long-term durability with high catalytic activity at low iridium loading remains one of great challenges for proton exchange membrane water electrolyzer (PEMWE). Herein, we report the low-temperature synthesis of iridium oxide foam platelets comprising edge-sharing IrO 6 octahedral honeycomb framework, and demonstrate the structural advantages of this material for multilevel tuning of anodic catalyst layer across atomic-to-microscopic scales for PEMWE. The integration of IrO 6 octahedral honeycomb framework, foam-like texture and platelet morphology into a single material system assures the generation and exposure of highly active and stable iridium catalytic sites for the oxygen evolution reaction (OER), while facilitating the reduction of both mass transport loss and electronic resistance of catalyst layer. As a proof of concept, the membrane electrode assembly in single-cell PEMWE based on honeycomb-structured IrO x foam platelets, with a low iridium loading (~0.3 mg Ir /cm 2 ), is demonstrated to exhibit high catalytic activity at ampere-level current densities and to remain stable for more than 2000 hours.

关键词： water splitting water oxidation foam structure iridium PEM electrolyzer

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System modeling and simulation for flap system power drive unit of commercial aircraft

System modeling and simulation for flap system power drive u...

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CSAA/IET International Conference on Aircraft Utility Systems 2020, AUS 2020

作者： Liu, Tong Zhang, Yue Qian, Yanjun Ju, Jiachen Yu, Wenbin Department of Flight Control System Shanghai Aircraft Design and Research Institute 5188 Jinke Rd. Shanghai201210 China Department of Science and Technology Management Commercial Aircraft Corporation of China Ltd. 1919 Shibo Ave. Shanghai200126 China Department of Mechanical and Mechatronics Engineering University of Waterloo 200 University Ave. W. WaterlooONN2L 3G1 Canada Department of Automation School of Electronic Information and Electrical Engineering Shanghai Jiaotong University 800 Dongchuan Rd. Shanghai200240 China

ISBN: (纸本)9781839535635

This paper describes the use of mathematical modelling within flap system power driving unit for commercial aircraft. The modelling process is described from the architecture of flap system, the principle and mathematical model of electrical motors and its control loop structure. The model of power driving unit and its external load system are developed in Simulink. Basic retraction and deployment function of flap has been performed, and the response of power driving unit under a typical jam failure of the actuator is provided. This work highlights the advantages of system modelling and simulation to support the load analysis of driveline components (e.g. actuators, torque shafts, etc.) within the conceptual design phase. © 2020 Institution of engineering and Technology. All rights reserved.

关键词： Actuators

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Flight control design for a highly flexible flutter demonstrator

Flight control design for a highly flexible flutter demonstr...

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AIAA Scitech Forum, 2019

作者： Luspay, Tamás Baár, Tamás Teubl, Dániel Vanek, Bálint Ossmann, Daniel Wüstenhagen, Matthias Pusch, Manuel Kier, Thiemo Waitman, Sérgio Iannelli, Andrea Marcos, Andres Lowenberg, Mark Systems and Control Lab Institute for Computer Science and Control Kende u 13-17 Budapest Hungary DLR German Aerospace Center Institute of Robotics and Mechatronics Wessling82234 Germany Aerospace Engineering Department University of Bristol University Walk BristolBS8 1TR United Kingdom

ISBN: (数字)9781624105784

ISBN: (纸本)9781624105784

The paper presents the control design approaches for the European research project FLEXOP. The ultimate goal is to develop and apply active flutter suppression and load alleviation techniques on an unmanned flying aircraft demonstrator. Due to the flexible wing of the aircraft new challenges rise for the control design: the traditional rigid body (baseline) control loops have to be augmented with flutter control laws. In our approach, the controllers are designed based on a dynamical model, which is briefly discussed first. Details of the baseline control design, as well as the two different flutter suppression algorithms are discussed in the paper. Hardware-in-the-Loop testing of the controllers are reported before the first test flights of the aircraft. © 2019, American Institute of Aeronautics and Astronautics Inc, AIAA. All rights reserved.

关键词： controllers

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Digital Quadruplets for Cyber-Physical-Social Systems based Parallel Driving: From Concept to Applications

arXiv

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arXiv 2020年

作者： Liu, Teng Yang, Xing Wang, Hong Tang, Xiaolin Chen, Long Yu, Huilong Wang, Fei-Yue State Key Laboratory of Mechanical Transmissions College of Automotive Engineering Chongqing University Chongqing400044 China Department of Mechanical and Aerospace Engineering Nanyang Technological University Singapore School of Vehicle and Mobility Tsinghua University Beijing China Waytous Inc. Qingdao Shandong266109 China Department of Mechanical and Mechatronics Engineering University of Waterloo N2L 3G1 Canada State Key Laboratory for Management and Control of Complex System Institute of Automation Beijing China

Digital quadruplets aiming to improve road safety, traffic efficiency and driving cooperation for future connected automated vehicles are proposed with the enlightenment of ACP based parallel driving. The ACP method denotes Artificial societies, Computational experiments and Parallel execution modules for cyber-physical-social systems. Four agents are designed in the framework of digital quadruplets: descriptive vehicles, predictive vehicles, prescriptive vehicles and real vehicles. The three virtual vehicles (descriptive, predictive, and prescriptive) dynamically interact with the real one in order to enhance the safety and performance of the real vehicle. The details of the three virtual vehicles in the digital quadruplets are described. Then, the interactions between the virtual and real vehicles are presented. The experimental results of the digital quadruplets demonstrate the effectiveness of the proposed framework. Copyright © 2020, The Authors. All rights reserved.

关键词： Vehicles

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Efficient Photocatalytic Degradation of Antibiotics in Water by a Novel Niln2s4/Uio-66 Z-Scheme Heterostructure

SSRN

引用

SSRN 2022年

作者： Wang, Anhu Liang, Huagen Chen, Fu Tian, Xinlong Jing, Shengyu Tsiakaras, Panagiotis Jiangsu Key Laboratory of Coal-based Greenhouse Gas Control and Utilization Low Carbon Energy Institute China University of Mining and Technology Xuzhou221008 China School of Materials Science and Engineering China University of Mining and Technology Xuzhou221008 China Key Laboratory of Fuel Cell Technology of Guangdong Province Guangzhou510640 China State Key Laboratory of Marine Resource Utilization in South China Sea Hainan Provincial Key Lab of Fine Chemistry School of Chemical Engineering and Technology Hainan University Haikou570228 China School of Information and Control Engineering China University of Mining and Technology Jiangsu Xuzhou221008 China Laboratory of Electrochemical Devices based on Solid Oxide Proton Electrolytes Institute of High Temperature Electrochemistry RAS Yekaterinburg620990 Russia Laboratory of Materials and Devices for Electrochemical Power Industry Institute of Chemical Engineering Ural Federal University 19 Mira Str. Yekaterinburg620002 Russia Laboratory of Alternative Energy Conversion Systems Department of Mechanical Engineering School of Engineering University of Thessaly 1 Sekeri Str. Pedion Areos 38834 Greece

Photocatalysis is considered an economical, environmentally friendly, and effective technology for removing pollutants. The construction of Z-Scheme heterojunctions has been identified as one of the feasible solutions capable of enhancing the photocatalytic activity. Herein, a series of visible light responsive photocatalysts (NiIn 2 S 4 /Uio-66 composites) with excellent activity and stability were prepared by using a solvothermal process. It is found that 20 mg L -1 of tetracycline (TC) could be completely degraded under visible light irradiation within 1 h, when the mass ratio of NiIn 2 S 4 to Uio-66 is 0.5:1 (NISU-0.5) and the solution pH=11. In addition, after six cycles, the degradation rate of tetracycline photocatalyzed by NISU-0.5 still reach up to 90%. Ultraviolet photoelectron spectra (UPS), X-ray photoelectron spectra (XPS) and electron spin resonance measurements (ESR) confirm the formation of the Z-Scheme heterostructure between NiIn 2 S 4 and Uio-66. The synergistic effect between built-in electric field, energy band bending and coulomb interactions in interface of Z-Scheme heterojunction is conducive to restrain the recombination of photogenerated electrons and holes, which greatly improve the photocatalytic activity. In conclusion, this study offers a new thought for design and synthesis of Z-Scheme heterojunctions and provides a cost-effective strategy for solving environmental pollution and energy problems in the future. © 2022, The Authors. All rights reserved.

关键词： Heterojunctions

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Autonomous driving at intersections: A critical-turning-point approach for left turns

arXiv

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arXiv 2020年

作者： Shu, Keqi Yu, Huilong Chen, Xingxin Chen, Long Wang, Qi Li, Li Cao, Dongpu CogDrive lab Department of Mechanical and Mechatronics Engineering University of Waterloo ONN2L 3G1 Canada Waytous Inc. Qingdao266109 China Autonomous Driving Lab Tencent China Tsinghua National Laboratory for Information Science and Technology Department of Automation Tsinghua University Beijing100084 China

Left-turn planning is one of the formidable challenges for autonomous vehicles, especially at unsignalized intersections due to the unknown intentions of oncoming vehicles. This paper addresses the challenge by proposing a critical turning point (CTP) based hierarchical planning approach. This includes a high-level candidate path generator and a low-level partially observable Markov decision process (POMDP) based planner. The proposed CTP concept, inspired by human-driving behaviors at intersections, aims to increase the computational efficiency of the low-level planner and to enable human-friendly autonomous driving. The POMDP based low-level planner takes unknown intentions of oncoming vehicles into considerations to perform less conservative yet safe actions. With proper integration, the proposed hierarchical approach is capable of achieving safe planning results with high commute efficiency at unsignalized intersections in real time. Copyright © 2020, The Authors. All rights reserved.

关键词： Autonomous vehicles

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