检索结果-南通市图书馆

IEEE/CAA Journal of Automatica Sinica 2018年第1期5卷 169-180页

作者： Yang Yang dong yue College of Automation Nanjing University of Posts and Telecommunications Nanjing 210023 China Institute of Advanced Technology and Jiangsu Engineering Laboratory of Big Data Analysis and Control for Active Distribution Network Nanjing University of Posts and Telecommunications Nanjing 210023 China IEEE

In this paper, we consider a consensus tracking problem of a class of networked multi-agent systems(MASs)in non-affine pure-feedback form under a directed topology. A distributed adaptive tracking consensus control scheme is constructed recursively by the backstepping method, graph theory,neural networks(NNs) and the dynamic surface control(DSC)approach. The key advantage of the proposed control strategy is that, by the DSC technique, it avoids "explosion of complexity"problem along with the increase of the degree of individual agents and thus the computational burden of the scheme can be drastically reduced. Moreover, there is no requirement for prior knowledge about system parameters of individual agents and uncertain dynamics by employing NNs approximation *** then further show that, in theory, the designed control policy guarantees the consensus errors to be cooperatively semi-globally uniformly ultimately bounded(CSUUB). Finally, two examples are presented to validate the effectiveness of the proposed control strategy.

关键词： Backstepping consensus multi-agent systems(MASs) neural networks(NNs)

Deep appearance modeling:A survey

在线全文

学校读者我要写书评

暂无评论

Visual Informatics 2019年第2期3卷 59-68页

作者： yue dong Microsoft Research Asia T2 Microsoft Building5th Danling StreetBeijingChina

Appearance modeling is an essential task in computer graphics for capturing and reproducing rich appearance of real world materials under different lighting and viewing *** recent advances of deep learning techniques,a set of deep learning based approaches have been proposed for improving the efficiency and result quality of appearance *** this paper,we provide a survey of these deep appearance modeling techniques from both graphics and machine learning perspectives,and discuss the challenges and opportunities along this direction.

关键词： Appearance modeling Surface reflectance Reflectance field Light field

Event-trigger-based consensus secure control of linear multi-agent systems under DoS attacks over multiple transmission channels

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Science China(Information Sciences) 2020年第5期63卷 105-118页

作者： Yang YANG Yanfei LI dong yue College of Automation & College of Artificial Intelligence Nanjing University of Posts and Telecommunications Jiangsu Engineering Laboratory of Big Data Analysis and Control for Active Distribution Network Nanjing University of Posts and Telecommunications Institute of Advanced Technology Nanjing University of Posts and Telecommunications

This paper proposes a consensus secure control scheme in the presence of denial-of-service(DoS)attacks based on an event-trigger mechanism. In contrast to a scenario in which attacks are the same and simultaneously paralyze all channels, the DoS attack addressed in this paper occurs aperiodically and results in the independent interruption of multiple transmission channels. A sufficient condition for the attack duration is designed and a distributed event-triggered control scheme is proposed, where the updated instants are triggered aperiodically to reduce the required communication resources. It is shown that the overall system is stable with the proposed scheme according to the Lyapunov stability theory and that Zeno behavior is excluded. Finally, a numerical example is presented to verify the effectiveness of the proposed scheme.

关键词： multi-agent system event-triggered control consensus secure control denial-of-service attack multiple transmission channels

Polarization visualization for low-irradiance regions by perceptually uniform color space

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Defence Technology（防务技术） 2021年第2期17卷 505-511页

作者： Feng Zhao yue dong Jian-lei Zhang Xi’an University of Posts and Telecommunications School of Electronic EngineeringXi’an710121China

Currently,polarization visualization strategies are accomplished by mapping polarization information into a perceptually uniform color appearance model ***,the deviation of the CAM02-UCS space from the lightness prediction results in an inaccurate match between the polarization information and the perceptual *** this paper,we propose a novel polarization visualization strategy based on the perceptual uniform space *** polarization visualization be completed by placing the polarization information into the lightness Jz,colorfulness Cz and hue angle hz channels of the Jzazbz *** experimental results show that the proposed method can significantly improve the lightness of the low irradiance and high polarization region,hence more polarization information can be sensed by human visual system.

关键词： Polarization visualization Perceptually uniform space Lightness prediction Low irradiance

Prescribed Performance Control of One-DOF Link Manipulator With Uncertainties and Input Saturation Constraint

在线全文

学校读者我要写书评

暂无评论

IEEE/CAA Journal of Automatica Sinica 2019年第1期6卷 148-157页

作者： Yang Yang Jie Tan dong yue IEEE the College of Automation and the College of Artificial Intelligence Nanjing University of Posts and Telecommunications the Institute of Advanced Technology and Jiangsu Engineering Laboratory of Big Data Analysis and Control for Active Distribution Network Nanjing University of Posts and Telecommunications

In this paper, we mainly address the position control problem for one-degree of freedom(DOF) link manipulator despite uncertainties and the input saturation via the backstepping technique, active disturbance rejection control(ADRC) as well as predefined tracking performance functions. The extended state observer(ESO) is employed to compensate uncertain dynamics and disturbances, and it does not rely on the accurate model of systems. The tracking differentiator(TD) is utilized to substitute the derivative of the virtual control signals, and the explosion of complexity caused by repeated differentiations of nonlinear functions is removed. The auxiliary system is used to deal with the control input limitation, and the tracking accuracy and speed are improved by predefined tracking performance *** the help of the input-to-state stability(ISS) and Lyapunov stability theories, it is proven that the tracking error can be gradually converged into arbitrarily small neighborhood of the origin, and the tracking error is adjusted by suitable choice of control parameters. The simulation results are presented for the verification of the theoretical claims.

关键词： Active disturbance rejection control (ADRC) auxiliary system backstepping technique input saturation predefined tracking performance function

Three-dimensional flexible Au nanoparticles-decorated TiO_(2) nanotube arrays for photoelectrochemical biosensing

在线全文

学校读者我要写书评

暂无评论

Journal of Materials Science & Technology 2020年第21期56卷 162-169页

作者： Xidong Zhang dong yue Ling Zhang Shiwei Lin State Key Laboratory of Marine Resource Utilization in South China Sea School of Materials Science and EngineeringHainan UniversityHaikou 570228China

Controlling the charge transfer and thus enhancing the excitons’lifetime are the key to the realization of efficient photoelectrochemical(PEC)***,fabrication of flexible and collapsible sensors can greatly facilitate the implementation of smart PEC sensing devices into practical ***,we sagely designed and successfully fabricated three-dimensional flexible Au nanoparticles-decorated TiO_(2) nanotube arrays(Au@TiO2)for the efficient PEC biosensing of *** Schottky barrier derived from the Au@TiO2 heterostructure efficiently separates the charge carriers at the junction interfaces,thus greatly increasing the concentration and lifetime of holes left in the valence band of *** separated holes further evidently generate the active hydroxyl radicals,which can specifically recognize and oxidize *** a result,Au@TiO_(2) exhibits excellent photoelectric activity and selectivity,far superior to TiO_(2) without decorated Au *** addition,such asymmetric Au@TiO_(2) system has been proved to feature the intrinsic flexibility nature,since its PEC biosensing performance is almost unaffected under indirect light irradiation and serious tensile strain.

关键词： Photoelectrochemical biosensing Metal/semiconductor interface Flexibility TiO_(2)nanotube arrays

Soil Microbial and Enzymatic Activities Across a Chronosequence of Chinese Pine Plantation Development on the Loess Plateau of China

在线全文

学校读者我要写书评

暂无评论

Pedosphere 2012年第1期22卷 1-12页

作者： YUAN Bing-Cheng yue dong-Xia School of Real Estate Beijing Normal University Zhuhai CampusZhuhai 519087(China) MOE Key Laboratory of Western China's Environmental System Lanzhou UniversityLanzhou 730000(China)

Successional and seasonal effects on soil microbial and enzymatic properties were studied in Chinese pine （Pinus tabulaeformis） plantations in an age sequence of 3-, 7-, 13-, 21- and 28-year-old in northern Ziwuling region in the middle of Loess Plateau, China. The results indicated that plantation age and season affected soil microbial and enzymatic parameters significantly. Soil organic C, total N, microbial biomass C, microbial quotient, basal respiration, dehydrogenase, N-α-benzoyl-L-argininamide （BAA）-protease, urease and β-glucosidase increased quickly and tended to be highest at PF21 （21-year plantation）, thereafter they remained nearly at a constant level, whereas the metabolic quotient （qCO2） showed an initial increase and then decreased gradually. Measures of these soil properties showed significant seasonal fluctuations except for organic C and total N, which were found to be relatively stable throughout the study period, and the seasonal distributions were autumn 〉 spring 〉 summer 〉 winter for microbial biomass C, microbial quotient, dehydrogenase, and β-glucosidase; autumn 〉 summer 〉 spring 〉 winter for BAA-protease and urease; and summer 〉 autumn 〉 spring 〉 winter for basal respiration and qCO2. Significant season x age interaction was observed for biomass C, basal respiration, dehydrogenase and BAA-protease.

关键词： dehydrogenase metabolic quotient microbial biomass seasonality soil basal respiration

Flexible impedance sensor based on Ti_(3)C_(2)T_(x)MXene and graphitic carbon nitride nanohybrid for humidity-sensing application with ultrahigh response

在线全文

学校读者我要写书评

暂无评论

Rare Metals 2023年第7期42卷 2204-2213页

作者： Yang Lu Meng-Yu Wang dong-yue Wang yue-Hang Sun Zi-Hao Liu Rong-Ke Gao Lian-dong Yu dong-Zhi Zhang College of Control Science and Engineering China University of Petroleum(East China)Qingdao266580China

This paper reported the impedance-type humidity sensor based on Ti_(3)C_(2)T_(x)/g-C_(3)N_(4)nanomaterials which was fabricated on a flexible polyethylene terephthalate(PET)*** scanning electron microscopy(SEM),X-ray diffraction(XRD),and X-ray photoelectron spectroscopy(XPS)measurements were used to demonstrate the successful synthesis and combination of Ti_(3)C_(2)T_(x)and g-C_(3)N_(4)*** performance of the humidity sensor was tested at room *** experimental results showed that the Ti_(3)C_(2)T_(x)nanosheets with g-C_(3)N_(4)nanosheets endowed the humidity sensor with an ultra-high response,rapid response/recovery time,and negligible *** complex impedance spectroscopy(CIS)and bode diagrams were used to further analyze the sensing mechanism of the Ti_(3)C_(2)T_(x)/g-C_(3)N_(4)humidity *** Ti_(3)C_(2)T_(x)/g-C_(3)N_(4)humidity sensor can monitor skin humidity and high-humidity alarm,which demonstrates great potential applications in various fields.

关键词： Ti_(3)C_(2)T_(x)MXene Graphitic carbon nitride Flexible humidity sensor Humidity detection Alarm application

A Hybrid Method for False Data Injection Attack Detection in Smart Grid Based on Variational Mode Decomposition and OS-ELM

在线全文

学校读者我要写书评

暂无评论

CSEE Journal of Power and Energy Systems 2022年第6期8卷 1697-1707页

作者： Chunxia Dou Di Wu dong yue Bao Jin Shiyun Xu Institude of Engineering Yanshan UniversityQinhuangdao 066004China Institute of Advanced Technology Nanjing University of Posts and TelecommunicationsNanjing 210023China Institute of Avanced Technology Nanjing University of Posts and TelecommunicationsNanjing 210023China China Electrical Power Research Institute Beijing 100192China

Accurate state estimation is critical to wide-area situational awareness of smart ***,recent research found that power system state estimators are vulnerable to a new type of cyber-attack,called false data injection attack(FDIA).In order to ensure the security of power system operation and control,a hybrid FDIA detection mechanism utilizing temporal correlation is *** proposed mechanism combines Variational Mode Decomposition(VMD)technology and machine *** the purpose of identifying the features of FDIA,VMD is used to decompose the system state time series into an ensemble of components with different ***,due to the lack of online model updating ability in a traditional extreme learning machine,an OS-extreme learning machine(OSELM)which has sequential learning ability is used as a detector for identifying *** proposed detection mechanism is evaluated on the IEEE-14 bus system using real load data from an independent system operator in New *** from detection accuracy,the impact of attack intensity and environment noise on the performance of the proposed method are *** simulation results demonstrate the efficiency and robustness of our method.

关键词： Cyberphysical security false data injection attack detection smart grid state estimation

Distributed Consensus of Multiple Nonholonomic Mobile Robots

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

IEEE/CAA Journal of Automatica Sinica 2014年第2期1卷 162-170页

作者： Kecai Cao Bin Jiang dong yue College of Automation Nanjing University of Posts and Telecommunications College of Automation Engineering Nanjing University of Aeronautics and Astronautics

Consensus problems of multiple nonholonomic mobile robots are considered in this paper. These problems are simplified into consensus problems of two subsystems based on structure of nonholonomic mobile robots. Linear distributed controllers are constructed respectively for these two subsystems thanks to the theory of nonautonomous cascaded systems. Consensus of multiple nonholonomic mobile robots has been realized using the methodology proposed in this paper no matter whether the group reference signal is persistent excitation or not. Different from previous research on cooperative control of nonholonomic mobile robots where the consensus problem under persistent exciting reference has received a lot of attention, this paper reports the first consensus result for multiple nonholonomic mobile robots whose group reference converges to zero. Simulation results using Matlab illustrate the effectiveness of the proposed controllers in this paper.

关键词： Mobile robots Protocols Topology Control systems Robot kinematics Time-varying systems