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第28届中国控制与决策会议

作者： Lijun Wang Qing Li Ruihua Jiao Yixin Yin Yinan Feng Yichang Liu School of Automation & Electrical Engineering University of Science and Technology Beijing Key Laboratory of Advanced Control of Iron and Steel Process(Ministry of Education) University of Science and Technology Beijing

ISBN: (纸本)9781467397155

To deal with the problem of observing or tracking for discontinuous signal,a kind of second order linear extended state observer(LESO) algorithm is *** ESO estimating the uncertain disturbance,a simple second-order linear ESO with less tunable parameters was designed in the absence of dynamic model,and the method of discrete time realization was *** proposed LESO was applied to the tracking of discontinuous Stribeck Friction in comparison with adaptive state *** results show that the proposed ESO is effective and practical.

关键词： Extended State Observer Adaptive State Observer Stribeck Friction Discontinuous Track

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Hellinger Distance Based Probability Distribution Approach to Performance Monitoring of Nonlinear control Systems

Hellinger Distance Based Probability Distribution Approach t...

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第25届中国过程控制会议

作者： Chen Li Biao Huang Feng Qian Key Laboratory of Advanced Control and Optimization Ministry of Education East China University of Science and Technology Department of Chemical and Materials Engineering University of Alberta Edmonton Alberta T6G 2G6 Canada

control performance monitoring has attracted great attention in both academia and industry over the past two ***,most research efforts have been devoted to the performance monitoring of linear control systems,without considering the pervasive nonlinearities(*** stiction)which present in most industrial control *** this work,a novel probability distribution distance based index is proposed to monitor the performance of non-linear control *** proposed method uses Hellinger distance to evaluate change of control system *** simulation examples are given to illustrate effectiveness of the proposed method.

关键词： control performance monitoring,kernel density estimation,Hellinger distance,nonlinear system

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Distributed event triggered H∞ filtering with nonhomogeneous Markov switching topologies

Distributed event triggered H∞ filtering with nonhomogeneou...

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UKACC International Conference on control (control)

作者： Wen Song Hao Zhang Huaicheng Yan Chen Peng Department of Control Science and Engineering Tongji University Shanghai China Key Laboratory of Advanced Control and Optimization for Chemical Processes of Ministry of Education East China University of Science and Technology Shanghai China School of Mechatronic Engineering and Automation Shanghai University Shanghai China

The distributed H ∞ state estimation problem over a filtering network with Markov switching topology is studied in this paper by employing event-triggered strategy. The strategy at each node is built on the output estimation error of its own and those received from its neighbours. Based on the communication uncertainty of practical networks, switching topology which subjects to a heterogeneous Markov chain is considered in filter design. By utilizing stochastic Markov stability theory, switching topology-dependent filters are designed such that the underlying error system is stochastically stable in mean square and the disturbance rejection attenuation level guarantees an H ∞ performance bound. An illustrative example is presented to show the applicability of the obtained results.

关键词： Network topology Switches Topology Symmetric matrices Markov processes Estimation error Attenuation

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A novel learning algorithm for pallet grouping technology

Communications in Computer and Information Science

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Communications in Computer and Information Science 2014年 462卷 36-45页

作者： Lin, Weitian Lian, Zhigang Jiao, Bin Gu, Xingsheng Xu, Wei Shanghai DianJi University Shanghai200240 China Key Laboratory of Advanced Control and Optimization for Chemical Processes of Ministry of Education East China University of Science and Technology Shanghai200237 China Shanghai Electric Group Co. Ltd Central Academe Shanghai200070 China

ISBN: (纸本)9783662452608

The Pallet Grouping Problem (PGP) is defined as minimizing the number of pallets for placing all materials in a collection and distribution center. A key to solving the PGP is to tackle the Pallet Loading Problem (PLP). The Pallet Loading Problem aims to maximize the number of identical rectangular boxes placed within a rectangular pallet. All boxes have identical rectangular dimensions and, when placed, must be located completely within the pallet. In this paper, a novel pallet grouping technology is proposed and a new learning algorithm, namely Learning Only from Excellence, (LOE) is presented for solving the pallet loading problem. Simulation results show that compared with the conventional Genetic Algorithm (AG) for two pallet loading problems with different scales, the new learning algorithm is proved to be more efficiently. © Springer-Verlag Berlin Heidelberg 2014.

关键词： Genetic algorithms

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Design,modeling and experiments of broadband tristable galloping piezoelectric energy harvester

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Acta Mechanica Sinica 2020年第3期36卷 592-605页

作者： Junlei Wang Linfeng Geng Shengxi Zhou Zhien Zhang Zhihui Lai Daniil Yurchenko Engineering Research Center of Energy Saving Technology and Equipment of Thermal Energy System Ministry of EducationZhengzhou 450000China School of Aeronautics Northwestern Polytechnical UniversityXi'an 710072China William G.Lowrie Department of Chemical and Biomolecular Engineering The Ohio State UniversityColumbusOH 43210USA Guangdong Provincial Key Laboratory of Micro/Nano Optomechatronics Engineering College of Mechatronics and Control EngineeringShenzhen UniversityShenzhen 518060China Institute of Mechanical Process&Energy EngineeringHeriot-Watt UniversityEdinburgh EH 144ASUK

Galloping based piezoelectric energy harvester is a kind of micro-environmental energy harvesting device based on flowinduced vibrations.A novel tristable galloping-based piezoelectric energy harvester is constructed by introducing a nonlinear magnetic force on the traditional galloping-based piezoelectric energy *** on Euler-Bernoulli beam theory and Kirchhoff’s law,the corresponding aero-electromechanical model is proposed and validated by a series of wind tunnel *** parametric study is performed to analyse the response of the tristable galloping-based piezoelectric energy *** results show that comparing with the galloping-based piezoelectric energy harvester,the mechanism of the tristable galloping-based piezoelectric energy harvester is more *** the increase of a wind speed,the vibration of the bluff body passes through three branches:intra-well oscillations,chaotic oscillations,and inter-well *** threshold wind speed of the presented harvester for efficiently harvesting energy is 1.0 m/s,which is decreased by 33% compared with the galloping-based piezoelectric energy *** maximum output power of the presented harvester is 0.73 mW at 7.0 m/s wind speed,which is increased by 35.3%.Compared with the traditional galloping-based piezoelectric energy harvester,the presented tristable galloping-based piezoelectric energy harvester has a better energy harvesting performance from flow-induced vibrations.

关键词： Energy harvesting Galloping Tristable Flow induced vibrations

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Implementing a modified Smith predictor using chemical reaction networks and its application to protein translation 4

Implementing a modified Smith predictor using chemical react...

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4th International Conference on Industrial Artificial Intelligence, IAI 2022

作者： Xiao, Yijun Lv, Hui Wang, Xing'an School of Software Engineering Dalian University Key Laboratory of Advanced Design and Intelligent Computing Ministry of Education Liaoning Dalian116622 China Northeastern University State Key Laboratory of Synthetical Automation for Process Industries Liaoning Shenyang110004 China College of Environmental and Chemical Engineering Dalian University Liaoning Dalian116622 China Dalian Chivy Biotechnology Co. Ltd Liaoning Dalian116622 China

ISBN: (数字)9781665451208

ISBN: (纸本)9781665451208

In this article, a special attention is paid to the biochemical controller synthesis for time delay systems and try to implement the well-established Smith predictor approach in the context of biochemical systems. Then, chemical reaction networks (CRNs) are adopted to construct a modified Smith predictor scheme (integrating Smith predictor and feedback compensation controllers) for the first time. Taking a delayed protein translation model as the background, the CRNs-based proposed scheme has access to a method that can solve the effect of co-translated mRNA decay in protein translation. In addition, considering that the decay of mRNA affects mRNA stability and protein production, the co-translated mRNA degradation is treated as an interference input of the protein translation process. Our results show that the impact of a disturbance input (mRNA degradation) is restrained by the modified control strategy. The CRNs-based modified Smith predictor makes the protein translation process more robust and achieves protein output quickly and stably. © 2022 IEEE.

关键词： Time delay

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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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Bulk diffusion: key factor of limiting the kinetics of CO2 capture on sodium carbonate 12

Bulk diffusion: Key factor of limiting the kinetics of CO2 c...

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12th Asia-Pacific Conference on Combustion, ASPACC 2019

作者： Cai, Tianyi Chen, Xiaoping Karl Johnson, J. Liu, Daoyin Ma, Jiliang Liang, Cai Wu, Ye Zhao, Chuanwen Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education School of Energy and Environment Southeast University Nanjing Jiangsu210096 China Department of Chemical and Petroleum Engineering University of Pittsburgh Pittsburgh Pennsylvania15261 United States MIIT Key Laboratory of Thermal Control of Electronic Equipment and Advanced Combustion Laboratory School of Energy and Power Engineering Nanjing University of Science and Technology Nanjing Jiangsu210094 China Jiangsu Provincial Key Laboratory of Materials Cycling and Pollution Control School of Energy and Mechanical Engineering Nanjing Normal University Nanjing Jiangsu210042 China

Sodium carbonate (Na2CO3) is a competitive solid sorbent for CO2 capture from humid flue gas because of its high abundance, low energy consumption and no by-products. However, slow kinetics of sorption process limit this technology to be a practical option for large-scale power plants. The very first step to improve its kinetics is to understand the rate-limiting steps of the carbonation reaction in this gas-solid system. Two possible scenarios that could result in diffusion control of the reaction rate have been investigated, including counter diffusion of ion defects between NaHCO3/Na2CO3 layers (Scenario 1) and one-way diffusion of molecule in NaHCO3 layer (Scenario 2). The bicarbonate groups and proton formation on NaHCO3 surface was observed on picosecond time scales. We calculated the formation energies of H+ vacancy (VH+)/interstitial Na+ (INa+) in bulk NaHCO3 (0.03 eV) and interstitial H+ (IH+)/Na+ vacancy (VNa+) in bulk Na2CO3 (0.89 eV). The diffusion barriers of VH+ and INa+ in bulk NaHCO3 were 0.27 eV and 0.77 eV, respectively. We have also identified that CO2 diffusion in bulk NaHCO3 is much more energetically unfavorable. Our results indicate that Na2CO3 bulk carbonation reaction is followed by Scenario 1 and INa+ diffusion in bulk NaHCO3 is the rate-limiting step. © Asia-Pacific Conference on Combustion, ASPACC *** right reserved.

关键词： Carbon dioxide

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Guaranteed cost filtering for discrete-time multi-layer neural networks with time-varying delays and unideal measurements

Guaranteed cost filtering for discrete-time multi-layer neur...

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International Conference on Information and Automation (ICIA)

作者： Hao Zhang Huaicheng Yan Congzhi Huang Mengling Wang East China University of Science and Technology Shanghai Shanghai CN Key Laboratory of Adv Key Laboratory of Advanced Control and Optimization for Chemical Processes of Ministry of Education East China University of Science and Technology Shanghai China School of Control and Computer Engineering North China Electric Power University Beijing China

ISBN: (纸本)9781509041039

This paper is concerned with the guaranteed cost filtering problem for discrete-time multi-layer neural networks with unideal measurements and time-varying delays. First, the innovative state space model of multi-layer neural networks can be described by the weighted-nonlinear function, which means that there have connections among neural layers. Then, the unideal measurements are made up by combination of random sensor nonlinearity and partial missing measurements, where partial missing measurements is the product of two mutually independent stochastic variables and normal measurements. Moreover, by using proportionate-additive filter and constructing a unified Lyapunov function, a novel criterion is proposed so that the augmented filtering error system achieves robust stability and has a guaranteed cost index. Finally, simulation results are presented to demonstrate the effectiveness of the derived method.

关键词： Delays Multi-layer neural network Robustness Linear matrix inequalities Radio frequency

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Notice of Retraction: Seasonal Variation of Disinfection By-Products Formation in during Chlorination of Treated Water from Yangtze River: Implication for Human Exposure

Notice of Retraction: Seasonal Variation of Disinfection By-...

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International Conference on Bioinformatics and Biomedical Engineering (ICBBE)

作者： Shao-Gang Liu Zhi-Liang Zhu Chen-feng Fan Yan-Ling Qiu Jian-Fu Zhao Key Laboratory of Chemical and Biological Transforming Process Guangxi University for Nationalities Nanning China State Key Laboratory of Pollution Control and Resource Reuse Key Laboratory of Yangtze Aquatic Environment of Ministry of Education University of Tongji Shanghai China

This article has been retracted by the publisher.

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