检索结果-内蒙古大学图书馆

第28届中国控制与决策会议

作者： Wenbing Zhang Yang Tang Department of Mathematics Yangzhou University The Key Laboratory of Advanced Control and Optimization for Chemical Processes Ministry of EducationEast China University of Science and Technology

ISBN: (纸本)9781467397155

This paper investigates the distributed containment control of multi-agent systems with multiple stationary leaders with event-triggering protocols.A distributed event-triggering protocol is proposed,where the triggering function of each agent with an exponentially decreasing threshold is developed to guarantee the convergence of the followers to the convex hull formed by the ***,simulations are given to illustrate the proposed event-triggering algorithm.

关键词： Sampled-data control Event-triggering control Containment control Multi-agent systems

来源：评论

学校读者我要写书评

暂无评论

Unraveling the Interfacial Charge Migration Pathway at the Atomic Level in a Highly Efficient Z‐Scheme Photocatalyst

引用

Angewandte Chemie 2019年第33期131卷

作者： Pengfei Wang Yueshuang Mao Lina Li Zhurui Shen Xiao Luo Kaifeng Wu Pengfei An Haitao Wang Lina Su Yi Li Sihui Zhan MOE Key Laboratory of Pollution Processes and Environmental Criteria Tianjin Key Laboratory of Environmental Remediation and Pollution Control College of Environmental Science and Engineering Nankai University Tianjin 300350 P. R. China Shanghai Synchrotron Radiation Facility Shanghai Advanced Research Institute Shanghai 201800 P. R. China School of Materials Science and Engineering Nankai University Tianjin 300350 P. R. China State Key Laboratory of Molecular Reaction Dynamics Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 P. R. China Beijing Synchrotron Radiation Facility Institute of High Energy Physics Chinese Academy of Sciences Beijing 100049 P. R. China Department of Chemistry Tianjin University Tianjin 300072 P. R. China

A highly efficient Z‐scheme photocatalytic system constructed with 1D CdS and 2D CoS 2 exhibited high photocatalytic hydrogen‐evolution activity of 5.54 mmol h −1 g −1 with an apparent quantum efficiency of 10.2 % at 420 nm. More importantly, its interfacial charge migration pathway was unraveled: The electrons are efficiently transferred from CdS to CoS 2 through a transition atomic layer connected by Co–S 5.8 coordination, thus resulting in more photogenerated carriers participating in surface reactions. Furthermore, the charge‐trapping and charge‐transfer processes were investigated by transient absorption spectroscopy, which gave an estimated charge‐separation yield of approximately 91.5 % and a charge‐separated‐state lifetime of approximately (5.2±0.5) ns in CdS/CoS 2 . This study elucidates the key role of interfacial atomic layers in heterojunctions and will facilitate the development of more efficient Z‐scheme photocatalytic systems.

关键词： Direkte Z-Schema-Photokatalysatoren Heteroübergänge Ladungsmigration Photokatalyse Schnittstellen

来源：评论

学校读者我要写书评

暂无评论

Adaptive synchronization of complex dynamical networks with neural networks nodes and unmatched parameters

Adaptive synchronization of complex dynamical networks with ...

引用

第28届中国控制与决策会议

作者： Yi Qu Yijun Zhang Wangli He School of Automation Nanjing University of Science and Technology The Key Laboratory of Advanced Control and Optimization for Chemical Processes Ministry of EducationEast China University of Science and Technology

ISBN: (纸本)9781467397155

This letter is on the design problem of global asymptotical adaptive synchronization for a class of complex dynamical *** the considered networks,the dynamics of each node are approximated by a class of neural networks(NNs).The parameters of the NNs in the complex dynamical networks are unmatched with the ones in the desired dynamical ***,the coefficient matrix of the adaptive controller under consideration is an arbitrary matrix instead of an identity *** adaptive nonlinear controller is *** using Lyapunov method and some properties of Kronecker product,some sufficient conditions are proposed to ensure the dynamics of the considered network globally asymptotically synchronize with the desired *** particular,the proposed criteria for network synchronization are in terms of linear matrix *** two variables are used in each criterion and the variables are not inside of any Kronecker ***,the conditions are easy to check.A numerical example is presented to show the effectiveness and applicability of the proposed approach.

关键词： Complex dynamical networks adaptive synchronization neural networks parameter unmatched

来源：评论

学校读者我要写书评

暂无评论

L2- L∞ State Estimation for Discrete-time Delayed Neural Networks with Missing Measurements and Randomly Occurring Sensor Linearity

L2- L∞ State Estimation for Discrete-time Delayed Neural Ne...

引用

第35届中国控制会议

作者： Hao Zhang Huaicheng Yan Hongbo Shi Hao Zhang Key Laboratory of Advanced Control and Optimization for Chemical Process of Ministry of Education Department of Control Science and Engineering Tongji University

ISBN: (纸本)9781509009107

This paper is concerned with the L-L state estimation problem for discrete-time delay neural networks with missing measurements and randomly occurring sensor *** phenomena of missing measurements and randomly occurring sensor linearity are constructed with two sequences of random variables,which obey the partial Bernoulli distribution.A sufficient condition is firstly given such that the augmented filtering error system is stochastically stable with a guaranteed optimal L-L performance by solving a set of linear matrix inequalities(LMIs).Finally,a simulation example is given to show the effectiveness of the proposed method.

关键词： L2-L∞ state estimation discrete-time delayed neural networks missing measurements randomly occurring sensor linearity

来源：评论

学校读者我要写书评

暂无评论

Exponential stability and L2 control for delayed switched systems with mode-dependent average dwell time

Exponential stability and L2 control for delayed switched sy...

引用

International Conference on Information and Automation (ICIA)

作者： Qian Yang Huaicheng Yan Hao Zhang Mengling Wang Key Laboratory of Advanced Control and Optimization for Chemical Processes of Ministry of Education East China University of Science and Technology Shanghai China Department of Control Science and Engineering Tongji University Shanghai China

ISBN: (纸本)9781509041039

This paper investigates the problem of robustly globally uniformly exponential stability and L 2 control for a class of switched systems with time-varying delay by using mode-dependent average dwell time (MDADT) approach. The MDADT approach is more applicable in practice than the average dwell time method in which each mode in the underlying system has its own average dwell time. Firstly, some sufficient conditions for robustly exponential stability is given by using the MDADT approach and piecewise Lyapunov function. Secondly, the L 2 -gain of the switched system with the external disturbance is analyzed. Then, the state feedback controller gain is obtained to ensure the exponential stability of the switched system. Finally, a numerical example is provided to illustrate the effectiveness of the theoretical results.

关键词： Switched systems Switches control theory Stability criteria

来源：评论

学校读者我要写书评

暂无评论

Enhanced Process Monitoring via Time Space Coordinated-Locality Preserving Projection

Enhanced Process Monitoring via Time Space Coordinated-Local...

引用

第27届中国过程控制会议（CPCC2016）

作者： Yang Jian Song Bing Tan Shuai Shi Hongbo Key Laboratory of Advanced Control and Optimization for Chemical Process of the Ministry of Education East China University of Science and Technology

In this paper,a novel dimensionality reduction method,time space coordinated-locality preserving projections(TSCLPP) is proposed based on locality preserving projection(LPP).For the short sampling interval,except the data correlation in spatial scale,there exists data correlation in time scale as *** considering the correlation of sampling points in time and spatial scale simultaneously,TSCLPP constructs the adjacency graph by selecting adjacent points in time-sequence and Euclidean distance ***,the importance of the time-sequential neighbors is measured by the weight based on a time distance.A dual objective function with a weight index coordinating the relationship between time and space is constructed to compute the transformation ***'s T2 and squared prediction error(SPE) are established for process monitoring.A numerical case and the Tennessee-Eastman Process(TEP) are employed for the experimental verification.

关键词： Enhanced Process Monitoring via Time Space Coordinated-Locality Preserving Projection

来源：评论

学校读者我要写书评

暂无评论

Removal of EEG artifacts for BCI applications using fully Bayesian tensor completion

Removal of EEG artifacts for BCI applications using fully Ba...

引用

International Conference on Acoustics, Speech, and Signal Processing (ICASSP)

作者： Yu Zhang Qibin Zhao Guoxu Zhou Jing Jin Xingyu Wang Andrzej Cichocki Key Laboratory for Advanced Control and Optimization for Chemical Processes East China University of Science and Technology China Laboratory for Advanced Brain Signal Processing RIKEN Brain Science Institute Japan Skolkowo Institute of Science and Technology Moscow Russia

High accuracy of electroencephalogram (EEG) classification can hardly be achieved if the signals are contaminated by severe artefacts. One helpless way to avoid such artefacts is usually to directly discard the severely disturbed EEG segments. This study considers a more elegant way that tries to recover the disturbed segments from other undisturbed segments. The possible artefacts in EEG are treated as missing values. A Bayesian tensor factorization (BTF) based method is proposed to implement EEG completion for artefact removal. By specifying a sparsity-inducing hierarchical prior, the underlying low-rank tensor is discovered from incomplete EEG tensor with automatically inferred model parameters. The EEG missing values are effectively predicted with robustness to overfitting. Effectiveness of the BTF algorithm is demonstrated on EEG data recorded from seven subjects in a brain-computer interface paradigm based on event-related potentials.

关键词： Electroencephalography Tensile stress Bayes methods Brain modeling Feature extraction Brain-computer interfaces Electric potential

来源：评论

学校读者我要写书评

暂无评论

Impulsive quasi-synchronization of delayed dynamic networks with asymmetric connections

Impulsive quasi-synchronization of delayed dynamic networks ...

引用

Annual Conference of Industrial Electronics Society

作者： Wangli He Chen Peng Feng Qian Key Laboratory of Advanced Control and Optimization for Chemical Processes East China University of Science and Technology Shanghai China School of Mechatronic Engineering and Automation Shanghai University P.R. China

Quasi-synchronization of heterogenous dynamic networks is studied by using impulsive control in this paper. The asymmetric network connections are considered. First, the weighted average state is introduced as the virtual leader. By defining the synchronization error between the virtual leader and the network node, impulsive quasi-synchronization is analyzed and a criterion is derived to ensure quasi-synchronization in the delayed heterogenous network. Then delayed networks with symmetric connections and delay-free networks are studied, respectively, with simpler conditions obtained. Numerical simulations demonstrate the effectiveness of the derived results.

关键词： Synchronization Heterogeneous networks Eigenvalues and eigenfunctions Trajectory Network topology optimization chemical processes

来源：评论

学校读者我要写书评

暂无评论

Event-triggered distributed predictive control for constrained large-scale linear systems

Event-triggered distributed predictive control for constrain...

引用

Chinese control Conference (CCC)

作者： Xu Su Yuanyuan Zou Yugang Niu Tinggang Jia Key Laboratory of Advanced Control and Optimization for Chemical Processes East China University of Science and Technology Shanghai Shanghai CN Automation Division Shanghai Electric Group Co. Ltd China

This paper investigates the problem of event-triggered dual-mode distributed predictive control (DPC) for constrained large-scale linear systems subject to bounded disturbances. Based on input-to-state stability (ISS) theory, the event-triggering condition involving information of the subsystem itself is derived. A dual-mode predictive control scheme is designed to reduce information exchanges with neighboring subsystems. The upper bound of disturbances for ensuring the recursive feasibility and closed-loop stability are developed. Finally, a simulation example is given to show that the presented method is able to save computation resources and communication resources while guaranteeing the desired control performance.

关键词： Silicon Predictive control optimization Large-scale systems Stability analysis Trajectory Linear systems

来源：评论

学校读者我要写书评

暂无评论

Online Batch Process Monitoring Based on Just-in-Time Learning and Independent Component Analysis

引用

Journal of Donghua University(English Edition) 2016年第6期33卷 944-948页

作者： WANG Li SHI Hong-bo School of Electrical and Electronic Engineering Shanghai Institute of Technology Shanghai 200230 China Key Laboratory of Advanced Control and Optimization for Chemical Processes of Ministry of Education East China University of Science and Technology Shanghai 200237 China

A new method was developed for batch process monitoring in this paper. In the devdopad method, just-in-time learning （ JITL ） and independent component analysis （ICA） were integrated to build JITL-ICA monitoring scheme. JITL was employed to tackle with the characteristics of batch process such as inherent time- varying dynamics, multiple operating phases, and especially the case of uneven length stage. According to new coming test data, the most correlated segmentation was obtained from batch-wise unfolded training data by JITL. Then, ICA served as the principal components extraction approach. Therefore, the *** distributed data can also be addressed under this modeling framework. The effectiveness and superiority of JITL-ICA based monitoring method was demonstrated by fed-batch penicillin fermentation.

关键词： batch process monitoring just-in-time learning(JITL) independent component analysis(ICA)

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：