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Output formation tracking for networked systems with limited energy and aperiodic silence

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Chinese Journal of Aeronautics 2022年第7期35卷 274-288页

作者： Jin JIN Junlong LI Donghao QIN ning cai School of Electrical Engineering Northwest Minzu UniversityLanzhou 730030China Key Laboratory of China’s Ethnic Languages and Information Technology for Ministry of Education Northwest Minzu UniversityLanzhou 730000China School of Missile Engineering Rocket Force University of EngineeringXi’an 710025China School of Artificial Intelligent Beijing University of Posts and TelecommunicationsBeijing 100876China

For leader-following networked systems with the topology switching and the aperiodic silence,limited-energy output formation tracking problems are ***,a new output formation tracking control protocol is proposed,which contains two components associated with the communication interactions between the leader and tracking intelligent agents and the communication interactions among tracking intelligent agents,respectively,and the aperiodic silence,the topology switching and the energy constraint index is introduced ***,a two-step transformation method is presented to separate the whole dynamics of a networked system into the relative dynamics between the leader and tracking intelligent agents and the dynamics of the leader,and sufficient conditions for limited-energy output formation tracking for networked systems with limited energy and aperiodic silence are presented,which are extended into networked systems without the aperiodic ***,a partition checking algorithm is presented to check limitedenergy output formation tracking design ***,a numerical example is illustrated to demonstrate the validness of theoretical results.

关键词： Energy calculations Formation Intermittent working Networked control system Tracking

On Almost Controllability of Dynamical Complex Networks with Noises

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Journal of Systems Science & Complexity 2019年第4期32卷 1125-1139页

作者： cai ning HE Ming WU Qiuxuan KHAN M.Junaid School of Auto mation Beijing University of Posts and TelecommunicationsBeijing 100876China Beijing Engineering Research Center of Post Intelligent Equipment Postal Scientific Research and Planning AcademyBeijing 100096China Key Laboratory of China's Ethnic Languages and Information Technology for Ministry of Education Northwest Minzu UniversityLanzhou 730030China Rocket Force University of Engineering Xi'an 710025China School of Automation Hangzhou Dianzi UniversityHangzhou 310018China PN Engineering College National University of Sciences and TechnologyIslamabadPakistan

This paper discusses the controllability problem of complex *** is shown that almost any weighted complex network with noise on the strength of communication links is controllable in the sense of Kalman *** concept of... 详细信息

关键词： Communication link complex network controllability weight

Data Fusion of Multivariate Time Series Based on Local Weighted Zero-Order Prediction Algorithm 36

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Data Fusion of Multivariate Time Series Based on Local Weigh...

POLYMERIZATION OF OCTAMETHYLCYCLOTETRASILOXANE WITH HEXAMETHYLDISILAZYL-LITHIUM AS INITIATOR

第36届中国控制会议

作者： Chen Diao Bin Wang ning cai School of Electrical Engineering Northwest University for Nationalities

ISBN: (纸本)9781538629185

Utilizing multivariable data,the motion state of complex nonlinear systems could be well described by phase space reconstruction *** this paper,a novel fusion data algorithm is proposed via local weighted zero-order prediction *** effectively reserving the motion information of original system,the weighted coefficients are rationally designed Euclidean *** results show that the algorithm is insensitive to the parameter embedding dimension m and delay time t and can obtain desirable results on Lorenz model.

关键词： Data fusion Phase space reconstruction Local weighted prediction algorithm Lorenz model

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Chinese Journal of Polymer Science 2001年第1期19卷 7-11页

作者： Zhijie Zhang ning Zhou cai-hong Xu Ze-min Xie Center for Molecular Science Institute of Chemistry Chinese Academy of Sciences Beijing 100080 China Center for Molecular Science Institute of Chemistry Chinese Academy of Sciences Beijing 100080 China Center for Molecular Science Institute of Chemistry Chinese Academy of Sciences Beijing 100080 China Center for Molecular Science Institute of Chemistry Chinese Academy of Sciences Beijing 100080 China

This work focused on the anionic polymerization of octamethylcyclotetrasiloxane (D-4, D = Me2SiO2/2) initiated by a new kind of initiator hexamethydisilazyl-lithium (MMNLi). Si-29-NMR spectroscopy and gas chromatography (GC) were used to characterize the polymerization products. The process was accelerated by adding a small amount of high activity monomer D-3 and by raising the polymerization temperature. At the end of polymerization more than 95% of the monomer was converted to polymer and only a very small amount of D-4 and D-5 remained in the polymers.

关键词： high purity polydimethylsiloxane octamethylcyclotetrasiloxane hexamethyldisilazyl-lithium anionic polymerization

Multi-objective strategy to optimize dithering technique for high-quality three-dimensional shape measurement

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Chinese Physics B 2019年第10期28卷 381-386页

作者： ning cai Zhe-Bo Chen Xiang-Qun Cao Bin Lin State Key Laboratory of Modern Optical Instrumentation CNERC for Optical InstrumentsZhejiang UniversityHangzhou 310027China Research Institute of Zhejiang University-Taizhou Taizhou 318000China

Dithering optimization techniques can be divided into the phase-optimized technique and the intensity-optimized technique. The problem with the former is the poor sensitivity to various defocusing amounts, and the problem with the latter is that it cannot enhance phase quality directly nor efficiently. In this paper, we present a multi-objective optimization framework for three-dimensional(3D) measurement by utilizing binary defocusing technique. Moreover, a binary patch optimization technique is used to solve the time-consuming issue of genetic algorithm. It is demonstrated that the presented technique consistently obtains significant phase performance improvement under various defocusing amounts.

关键词： three-dimensional(3D) shape measurement multi-objective dithering genetic algorithm

Optimized dithering technique in frequency domain for high-quality three-dimensional depth data acquisition

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Chinese Physics B 2019年第8期28卷 124-131页

On the basis of the objective functions,dithering optimization techniques can be divided into the intensity-based optimization technique and the phase-based optimization ***,both types of techniques are spatial-domain optimization techniques,while their measurement performances are essentially determined by the harmonic components in the frequency *** this paper,a novel genetic optimization technique in the frequency domain is proposed for highquality fringe *** addition,to handle the time-consuming difficulty of genetic algorithm(GA),we first optimize a binary patch,then join the optimal binary patches together according to periodicity and symmetry so as to generate a full-size *** is verified that the proposed technique can significantly enhance the measured performance and ensure the robustness to various amounts of defocusing.

关键词： fringe generation genetic algorithm frequency domain 3D shape measurement

An Index to Measure Controllability of Complex Networks 36

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An Index to Measure Controllability of Complex Networks

Synthesis and Characteristics of Electrodeposited CoxZn1-x Nanorods

第36届中国控制会议

作者： TAN,Zong-Yuan cai,ning DIAO,Chen GUO,Ling College of Electrical Engineering Northwest Minzu University

ISBN: (纸本)9781538629185

The main topic of this paper is the controllability of dynamic complex *** our current study,an index is selected for the sake of quantitatively measuring the controllability of *** influence of this index is mainly analyzed according to empirical researches on two classes of network structures,for instance,stochastic networks and small-world *** such an index,the comparison of controllability between different types of network structures could be possible.

关键词： Controllability Complex Network Quantitative Measure

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Chinese Physics Letters 2010年第6期27卷 203-205页

作者： LIU Li-Hu GU Jian-Jun LI Hai-Tao cai ning SUN Hui-Yuan College of Physics Science and Information Engineering Hebei Normal University Shijiazhuang 050016 Key Laboratory of Advanced Films of Hebei Province Shijiazhuang 050016 Department of Physics Hebei Chengde Teachers College Chengde 067000

CoxZn1-x nanorod arrays were fabricated by electrodeposition in porous anodic aluminum oxide templates at different electric potentials. X-ray diffraction and transmission electron microscopy indicate that highly-ordered and uniform nanorods have been fabricated. The amounts of Co and Zn contents are investigated using energy dispersive spectroscopy, which demonstrates that the atom ratio of the alloy nanorods changes with the deposition potential. In addition, magnetic measurements show that the magnetic isotropy Co-rich CoZn nanorods will change to magnetic anisotropy nanorods with the easy axis parallel to the rod long axis with decreasing Co content.

关键词： Processing Dispersants Measurement Microscopy Cobalt

D-π-D molecular layer electronically bridges the NiO_(x) hole transport layer and the perovskite layer towards high performance photovoltaics

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Journal of Energy Chemistry 2022年第4期31卷 797-804页

作者： Rongguo Xu Xiuwen Xu Ruixi Luo Yu Li Gaopeng Wang Tongfa Liu ning cai Shihe Yang Guangdong Provincial Key Lab of Nano-Micro Materials Research School of Chemical Biology and BiotechnologyShenzhen Graduate SchoolPeking UniversityShenzhen 518055GuangdongChina School of Chemical Engineering and Light Industry Guangdong University of TechnologyGuangzhou 510006GuangdongChina Institute of Biomedical Engineering Shenzhen Bay LaboratoryShenzhen 518107GuangdongChina

Nickel oxide (NiO_(x)) has significant cost and stability advantages over poly[bis (4-phenyl)(2,4,6-trimethyl phenyl)amine](PTAA) for inverted p-i-n perovskite solar cells (PSCs),but the poor NiO_(x)/perovskite contact stemming from some reactive species at the interface led to suboptimal device *** solve this problem,we take a multiple donor molecule approach,using 3,3’-(4,8-bis(hexylthio)benzo[1,2-b:4,5-b’]dithiophene-2,6-diyl)bis(10-(6-bromohexyl)-10H-phenoxazine)(BDT-POZ) as an example,to modify the NiO_(x)/perovskite *** primary goal was to reduce the under-coordinated Ni^(≥3+) cations via electron transfer from the donor molecules to NiO_(x),thus mitigating the detrimental reactions between perovskite and NiO_(x).Equally importantly,the hole extraction at the interface was greatly enhanced after the organic donor modification,since the hydrophobic species atop NiO_(x) not only enabled pinhole-free crystallization of the perovskite but also properly tuned the interfacial energy level ***,the PSCs with NiO_(x)/BDT-POZ HTL achieved a high power conversion efficiency (PCE) up to 20.16%,which compared excellently with that of the non-modified devices (17.83%).This work provides a new strategy to tackle the exacting issues that have so far impeded the development of NiO_(x) based PSCs.

关键词： Perovskite solar cells NiO_(x)modification Hole transport Energy level alignment High performance