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Development of highly active coated monolith SCR catalyst with strong abrasion resistance for low-temperature application

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Frontiers of Environmental Science & Engineering 2015年第6期9卷 979-987页

作者： Lina GAN Shan LEI Jian YU Hongtao MA Yo YAMAMOTO Yoshizo SUZUKI Guangwen XU Zhanguo ZHANG State Key Laboratory of Multiphase Complex Systems Institute of Process Engineering Chinese Academy of Sciences Beijing 100190 China University of Chinese Academy of Sciences Beijing 100049 China Materials Research Department Materials Research Laboratories Research and Development Group Meidensha Corporation 8-1 Osaki 2-Chome Shinagawa-ku Tokyo 141-8565 Japan National Institute of Advanced Industrial Science and Technology (AIST) Onogawa 16-1 Tsukuba 305-8569 Japan

Monolith SCR catalysts coated with V2Os- WO3/TiO2 were prepared by varying binder and coating thickness. Comparing with a monolith extruded with 100% V2O5-WO3/TiO2 powder, a coated monolith with a catalyst-coating layer of 260 μm in thickness exhibited the similar initial NOx reduction activity at 250℃. After 4 h abrasion （attrition） in an air stream containing 300 g. m^-3 fine sands （50-100μm） at a superficial gas velocity of 10m·s^-1, the catalyst still has the activity as a 100% molded monolith does in a 24-h activity test and it retains about 92% of its initial activity at 250℃. Estimation of the equivalent durable hours at a fly ash concentration of 1.0 g.m^-3 in flue gas and a gas velocity of 5 m.s^-1 demonstrated that this coated monolith catalyst is capable of resisting abrasion for 13 months without losing more than 8% of its initial activity. The result suggests the great potential of the coated monolith for application to de-NOx of flue gases with low fly ash concentrations from, such as glass and ceramics manufacturing processes.

关键词： coated monolith low-temperature denitration,abrasion resistance attrition

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Preparation of Papers for IFAC Conferences & Symposia: Integration of process Design and control Using Hierarchical control Structure

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IFAC-PapersOnLine 2015年第8期48卷 188-192页

作者： Mengfei Zhou Long Li Lei Xie Yijun Cai Haitian Pan Department of Chemical Engineering Zhejiang University of Technology Hangzhou 310014 China Tel: +86-571-88320329 National Key Laboratory of Industrial Control Technology Institute of Cyber-Systems and Control Zhejiang University Hangzhou 310027 China

The integration of process design and control (IPDC) has become increasingly important and received considerable academic and practitioner attention over the recent decades. Moreover, some works in the field have utilized advanced controllers into IPDC framework. Considering the fact that the hierarchical control structure which consists of local PID controllers and an advanced process control (APC) as the central controller has been used widely in industrial practice, in this paper, the two-level hierarchical control structure is taken into account within the IPDC framework for the first time. The IPDC problem using hierarchical control structure is formulated as a bi-level optimization problem, which separates the design decisions from the APC decisions and then keeps the problem size manageable. And the APC decisions are incorporated in a superstructure-based dynamic optimization formulation which considers both cost and controllability. A continuous stirred tank reactor is used to test the proposed IPDC methodology.

关键词： process design hierarchical control structure bi-level optimization integration advanced process control

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A DE based PID controller for two dimensional overhead crane

A DE based PID controller for two dimensional overhead crane

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第三十四届中国控制会议

作者： Zhe Sun Ning Wang Yunrui Bi Jinhui Zhao National Laboratory of Industrial Control Technology Institute of Cyber-Systems and ControlZhejiang University Key Laboratory of Measurement and Control of CSE Ministry of EducationSchool of AutomationSoutheast University College of Mechanical and Electrical Engineering China Jiliang University

ISBN: (纸本)9781467374439

In order to damp the load oscillation, a DE optimal PID controller is designed for overhead crane control *** by bee colony foraging mechanism, a neighborhood search operation is adopted for differential evolution(DE) algorithm to improve the search efficiency. This improved DE algorithm is employed to adjust PID controller parameters off-line. Through simulation and comparison under different operation conditions, the DE based PID controller exhibits the better performance in overhead crane anti-swing and position control.

关键词： PID control,DE algorithm,Parameter optimization,Overhead crane

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FEA Solutions for Simulating Multi-workpiece and Multi-process in Manufacturing process of Submarine Welded Pressure Hull

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Procedia Engineering 2015年 130卷 956-965页

作者： J.G. Yang J. Lei H. Xie Z.L. Gao J.F. Hu H.Y. Fang Institute of Process Equipment and Control Engineering Zhejiang University of Technology Hangzhou 310032 China Zhengjiang Geely Automobile Co. Ltd Ningbo 315800 China State Key Laboratory of Advanced Welding and Joining Harbin Institute of Technology Harbin 150001 China

To realize the numerical simulation of multi-workpiece and multi-process, two difficulties encountered in continuous finite element analysis (FEA) were brought forward firstly. Then the theoretical basis of merging measured initial residual stresses into FEA models was discussed. Based on which the mapping method of multi-model in continuous FEA was put forward. This method can be potentially used to realize such continuous FEA as manufacturing of welded submarine pressure hull by transferring the finite element analysis results between different processes and workpieces. No commercial FEA codes can give perfect solutions to these transfer processes at present. The commercial FEA code *** was used as the FEA platform to realize simplifying analysis. Because of all the welding processes are multi-process, so the mapping method of multi-model in continuous FEA can be potential used in the welding simulation to make the calculating results be accurate.

关键词： Continuous FEA Numerical Simulation Multi-workpiece Multi-process Weld

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Data filtering based parameter estimation algorithms for multivariable Box-Jenkins-like systems ∗

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IFAC-PapersOnLine 2015年第8期48卷 849-852页

作者： Yanjiao Wang Ling Xu Feng Ding Key Laboratory of Advanced Process Control for Light Industry (Ministry of Education) Jiangnan University Wuxi 214122 PR China School of Internet of Things Technology Wuxi Institute of Commerce Wuxi 214153 PR China

This paper proposes an auxiliary model based hierarchical least squares algorithm for multivariable Box-Jenkins-like systems using the hierarchical identification principle. To improve the computational efficiency, a multivariable system is decomposed into two subsystems by using the data filtering technique. Furthermore, this paper presents a data filtering based auxiliary model hierarchical least squares algorithm for multivariable Box-Jenkins-like systems. The simulation example shows that the proposed identification algorithms are effective.

关键词： Least squares Data filtering Parameter estimation Hierarchical identification Multivariable system

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Method of effectiveness evaluation for ATTWS based on cloud model

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Journal of Information and Computational Science 2015年第12期12卷 4749-4757页

作者： Xu, Hao Kang, Fengju Li, Dan School of Marine Science and Technology Northwestern Polytechnical University Xi'an China National Key Laboratory of Underwater Information Process and Control Xi'an China School of Civil and Environmental Engineering Georgia Institute of Technology AtlantaGeorgia United States

According to the characters of Anti-torpedo Torpedo Weapon System (ATTWS), the effectiveness evaluation system of ATTWS is established, and then a method based on the cloud model is proposed to achieve the effectiveness evaluation for ATTWS. In this method, each attribute is analyzed with the cloud model and a unique normalization function, and the state of ATTWS is represented by the weight deviation interval which is also used to evaluate the effectiveness for ATTWS. The analysis for the result of an evaluation example shows that this method is feasible and effective, and well solves the problems during the progress of the effectiveness evaluation for ATTWS. Copyright © 2015 Binary Information Press.

关键词： Cloud computing

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Impulsive Synchronization of Complex Dynamical Networks Via Comparison Principle 33

Impulsive Synchronization of Complex Dynamical Networks Via ...

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第三十三届中国控制会议

作者： YE Qian LOU Xuyang Wuxi Institute of Technology Key Laboratory of Advanced Process Control for Light Industry (Ministry of Education) Jiangnan University

ISBN: (纸本)9781479947249

This paper focuses on the problem of impulsive synchronization of a class of complex dynamical networks. Based on impulsive control theory and a comparison theorem, generic criteria for complete synchronization are derived. It is shown that these criteria provide a novel and effective control approach to synchronize a general dynamical network to a synchronization manifold by exposing the relationship between impulsive synchronization, the impulsive intervals, and the graph topology. A numerical example is given to illustrate the results.

关键词： Impulsive Synchronization,Complex Dynamical Networks,Comparison Principle

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3D FEM analysis of welding residual stress and deformation of aero-engine blisk

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China Welding 2014年第4期23卷 63-68页

作者：杨建国周号雷靖方洪渊张学秋曲伸 Institute of Process Equipment and Control Engineering Zhejiang University of TechnologyHangzhou 310014. State Key Laboratory of Advanced Welding and Joining HarbinInstitute of Technology Harbin 150001t

Aero-engine blisk welded by electron beam welding（EBW） method is a complicated structure. Fixtures were used to control the deformation of blisk during its manufacturing process. Finite element method was utilized to study the evolution of the welding residual stress and deformation of this structure. In which an attenuation function was applied to the double ellipsoid heat source model based on the characteristic of EBW, and the effects of fixtures on the welding residual stresses and deforamtion were also reserached. The simulation results showed that the temperature contour of weld cross section vertical to the weld centerline followed a ＇＂ V＂ shape. Moreover, large welding residual stress and distortion were found in the interface between blisk and fixtures. The stress concentration was reduced sufficiently in starting and end part of weldment as the fixtures were renmved after welding process, while the removing operation had almost no effects on the welding residual stress in the middle section of weld bead.

关键词： blisk residual stress distortion electron beam welding numerical simulation

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26th Annual Computational Neuroscience Meeting (CNS*2017): Part 3 Antwerp, Belgium. 15-20 July 2017 Abstracts

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BMC NEUROSCIENCE 2017年第SUPPL 1期18卷 95-176页

作者： [Anonymous] Department of Neuroscience Yale University New Haven CT 06520 USA Department Physiology & Pharmacology SUNY Downstate Brooklyn NY 11203 USA NYU School of Engineering 6 MetroTech Center Brooklyn NY 11201 USA Departament de Matemàtica Aplicada Universitat Politècnica de Catalunya Barcelona 08028 Spain Institut de Neurobiologie de la Méditerrannée (INMED) INSERM UMR901 Aix-Marseille Univ Marseille France Center of Neural Science New York University New York NY USA Aix-Marseille Univ INSERM INS Inst Neurosci Syst Marseille France Laboratoire de Physique Théorique et Modélisation CNRS UMR 8089 Université de Cergy-Pontoise 95300 Cergy-Pontoise Cedex France Department of Mathematics and Computer Science ENSAT Abdelmalek Essaadi’s University Tangier Morocco Laboratory of Natural Computation Department of Information and Electrical Engineering and Applied Mathematics University of Salerno 84084 Fisciano SA Italy Department of Medicine University of Salerno 84083 Lancusi SA Italy Dipartimento di Fisica Università degli Studi Aldo Moro Bari and INFN Sezione Di Bari Italy Data Analysis Department Ghent University Ghent Belgium Coma Science Group University of Liège Liège Belgium Cruces Hospital and Ikerbasque Research Center Bilbao Spain BIOtech Department of Industrial Engineering University of Trento and IRCS-PAT FBK 38010 Trento Italy Department of Data Analysis Ghent University Ghent 9000 Belgium The Wellcome Trust Centre for Neuroimaging University College London London WC1N 3BG UK Department of Electronic Engineering NED University of Engineering and Technology Karachi Pakistan Blue Brain Project École Polytechnique Fédérale de Lausanne Lausanne Switzerland Departement of Mathematics Swansea University Swansea Wales UK Laboratory for Topology and Neuroscience at the Brain Mind Institute École polytechnique fédérale de Lausanne Lausanne Switzerland Institute of Mathematics University of Aberdeen Aberdeen Scotland UK Department of Integrativ

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Observer-Based control for State Estimation of Uncertain Fuzzy Neural Networks With Time-Varying Delay 33

Observer-Based Control for State Estimation of Uncertain Fuz...

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第三十三届中国控制会议

作者： LOU Xuyang YE Qian CUI Baotong Key Laboratory of Advanced Process Control for Light Industry (Ministry of Education) Jiangnan University School of IoT Engineering Jiangnan University Wuxi Institute of Technology

ISBN: (纸本)9781479947249

By ordinary Takagi-Sugeno(TS) fuzzy models, complex nonlinear systems can be represented to a set of linear submodels by using fuzzy sets and fuzzy reasoning. This paper is concerned with the problem of observer-based state estimation for fuzzy neural networks(FNNs) with time-varying structured uncertainties and time-varying delay. The problem addressed is to estimate the neuron states, through available output measurements, such that the dynamics of the estimation error is globally exponentially stable. An effective linear matrix inequality approach is developed to solve the neuron state estimation *** particular, we derive the conditions for the existence of the desired estimators of the delayed neural networks for all admissible parametric uncertainties. The designed controller simultaneously contains both the current state information and nonlinear disturbances on the network outputs and can be derived by solving a linear matrix inequality(LMI). A numerical example is included to illustrate the applicability of the proposed design method.

关键词： State Estimation,Fuzzy Neural Networks,Observer,Delay

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