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Decentralized Optimal control and Stabilization of Interconnected Systems With Asymmetric {1.

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IEEE/CAA Journal of Automatica Sinica 2024年第3期11卷 698-707页

作者： Na wang {1. Liang Hongdan Li {1. lu the College of Electrical Engineering and Automation Shandong University of Science and TechnologyQingdao 266000China the School of Automation and Electrical Engineering Linyi UniversityLinyi 276000China the College of Energy Storage technology Shandong University of Science and TechnologyQingdao 266000China

The paper addresses the decentralized optimal control and stabilization problems for interconnected systems subject to asymmetric *** with previous work,a closed-loop optimal so{1.tion to the control problem and sufficient and necessary conditions for the stabilization problem of the interconnected systems are given for the first *** main challenge lies in three aspects:Firstly,the asymmetric information results in coupling between control and estimation and fai{1.re of the separation ***,two extra unknown variables are generated by asymmetric information(different information filtration)when solving forward-backward stochastic difference ***,the existence of additive noise makes the study of mean-square boundedness an *** adopted technique is proving and assuming the linear form of controllers and establishing the equivalence between the two systems with and without additive noise.A dual-motor parallel drive system is presented to demonstrate the validity of the proposed algorithm.

关键词： Asymmetric information decentralized control forwardbackward stochastic difference equations interconnected system stalibization

Drug repurposing screening and mechanism analysis based on human colorectal cancer organoids

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Protein & Cell 2024年第4期15卷 285-304页

作者： Yunuo Mao wei {1. Jingwei Yang Xin Zhou Yongqu lu Junpeng Gao xiao {1. lu Wen wei Fu Fuchou Tang School of Life Sciences Biomedical Pioneering Innovation CenterDepartment of General SurgeryThird HospitalPeking UniversityBeijing 100871China Beijing Advanced Innovation center for Genomics(ICG) Ministry of Education Key Laboratory of Cell Proliferation and DifferentiationBeijing 100871China Peking-Tsinghua center for Life Sciences Peking UniversityBeijing 100871China Peking university Third Hospital Cancer {1. Beijing 100871China The research {1. of Stem Cell and Regenerative Medicine School of Basic Medical SciencesCheeloo College of MedicineShandong UniversityJinan 250012China

Colorectal cancer(CRC)is a highly heterogeneous cancer and exploring novel therapeutic options is a pressing issue that needs to be ***,we established human CRC tumor-derived organoids that well represent both morphological and molecular heterogeneities of original *** efficiently identify repurposed drugs for CRC,we developed a robust organoid-based drug screening *** combining the repurposed drug library and computation-based drug prediction,335 drugs were tested and 34 drugs with anti-CRC effects were *** importantly,we conducted a detailed transcriptome analysis of drug responses and divided the drug response signatures into five representative patterns:differentiation induction,growth inhibition,metabolism inhibition,immune response promotion,and cell cycle *** anticancer activities of drug candidates were further validated in the established patient-derived organoids-based xenograft(PDOX)system in *** found that fedratinib,trametinib,and bortezomib exhibited effective anticancer ***,the concordance and discordance of drug response signatures between organoids in vitro and pairwise PDOX in vivo were *** study offers an innovative approach for drug discovery,and the representative transcriptome features of drug responses provide valuable resources for developing novel clinical treatments for CRC.

关键词： colorectal cancer organoids drug repurposing patient-derived organoids-based xenograft mechanism of action

Dynamic recrystallization behavior and strengthening mechanism of a novel Mo-Ti_(3)AlC_(2) alloy at ultrahigh temperature

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Rare Metals 2024年第8期43卷 3946-3960页

作者： lu Yang Xin-Yuan Zheng Yang Zhao Xi-Ran {1. Fang-Nao xiao Shi-Zhong wei School of Materials Science and Engineering Henan University of Science and TechnologyLuoyang 471023China National Joint Engineering research {1. for Abrasion control and Molding of Metal Materials Henan University of Science and TechnologyLuoyang 471003China Department of Applied Mechanics Univ.Bourgogne FrancheComteFEMTO-ST InstituteCNRS/UF/ENSMM/UTBM25000BesangonFrance

Increasing the recrystallization temperature to achieve better high-temperature performance is critical in the development of molybdenum alloys for ultrahightemperature applications,such as the newest generation of multitype high-temperature nuclear *** this study,an innovative strategy was proposed to improve the performance of molybdenum alloys at high temperature by using the two-dimensional MAX(where M is an early transition metal,A is an A-group element and X is C or N)ceramic material Ti_(3)AlC_(2).The relationships between flow stress,strain rate and temperature were *** microstructure,distribution of misorientation and evolution of dislocations in the Mo-Ti_(3)AlC_(2) alloy were *** microscopic mechanism of the Ti_(3)AlC_(2) phase in the molybdenum alloy at high temperatures was *** experimental results showed that the peak flow stress of Mo-Ti_(3)AlC_(2) at 1.00℃ reached 1.5 MPa,which was1.1.8% greater than that of pure *** activation energy of thermal deformation of Mo-Ti_(3)AlC_(2) was as large as537 kJ·mol~(-1.,which was 1..6% more than that of pure *** recrystallization temperature reached 1.00℃ or even *** topological reaction of the Ti_(3)AlC_(2) phase consumed a large amount of energy at high temperatures,resulting in increases in the deformation activation *** structures of AlTi_3 and Ti-O Magneli-phase oxides(Ti_nO_(2n-1.) were formed in-situ,which relied on kink bands and interlayer slip,resulting in many dislocations during ***,the special two-dimensional of the structure Ti_(3)AlC_(2) ceramic inhibited the recrystallization behavior of the Mo *** results of this study can provide theoretical guidance for the development of a new generation of molybdenum alloys for use in ultrahigh-temperature environments.

关键词： Mo alloy Two-dimensional reinforcement Dynamic recrystallization behavior Hot deformation Mechanical properties

Stabilization for discrete-time fuzzy systems with Takagi-Sugeno's models:reduce the complexity

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Science china({1. Sciences) 2010年第12期53卷 2506-2513页

作者： wang LiKui 1 & LIU xiaoDong 2 1 School of Mathematics and information Science,Nanchang Hangkong university,Nanchang 330063,china 2 research center of information and control,dalian university of technology,dalian 11602.,china 1. School of Mathematics and information Science Nanchang Hangkong University Nanchang 330063 China2. Research Center of Information and Control Dalian University of Technology Dalian 116024 China

The problem of sate feedback control for discrete-time fuzzy systems with Takagi-Sugeno's models is investigated to reduce the computational burden.A stabilization condition is obtained by applying a new Lyapunov *** is shown that our new theorem is equivalent to an existing result in guaranteeing the stability of the fuzzy system but consumes less computational time than the *** effectiveness and the superiority of the proposed design approach are demonstrated by an example borrowed from the literature.

关键词： Takagi-Sugeno’s fuzzy model non-quadratic Lyapunov function linear matrix inequality

Multi-robot cooperative localization based on autonomous motion state estimation and laser data interaction

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Science china({1. Sciences) 2010年第11期53卷 2240-2250页

作者： ZHUANG Yan, GU Mingwei, {1. wei & YU HaiYang research center of information and control, dalian university of technology, dalian 1.6024, china 1. research {1. of information and control Dalian University of Technology Dalian 106024 China

Multi-robot cooperative localization is an important research topic in mobile robotics. This paper mainly studies the problem of cooperative localization based on environment {1. interaction in unknown complex environment. Considering the effiect of robot motion state on the cooperative localization, we present an algorithm for adaptive selecting periods of the cooperative localization based on autonomous motion state estimation. In order to avoid equipping an extra localization marker on the robot which is needed for direct observation between robots, and to make full use of the interactive {1. between robots in the same scene, a method for obtaining multi-robot observations based on MbICP algorithm is proposed, which makes multirobot cooperative localization using EKF feasible and reliable in cluttered environment. Experiment results with the Pioneer 3-DX robots and data analysis show the method’s validity and practicability.

关键词： multi-robot cooperative localization motion state estimation metric-based iterative closest point extended Kalman filter

A review on surface coating strategies for anti-hygroscopic of high energy oxidizer ammonium dinitramide

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Defence technology（防务技术） 2024年第3期33卷 237-269页

作者： Hongyu Yang Fuyao Chen Yiwen Hu Qiangqiang lu Lei {1. Yinglei wang Fengqi Zhao wei Jiang Gazi Hao National Special Superfine Powder Engineering research {1. of china School of Chemistry and Chemical EngineeringNanjing University of Science and TechnologyNanjing 210094China Xi’an Modern Chemistry research Institute Xi’an 710065China

Ammonium dinitramide(ADN),which has the advantages of high energy density,no halogen and low characteristic signal,is not only considered as a new high-energy oxidizer that is expected to replace the traditional oxidizer ammonium perchlorate(AP)in solid propellants,but also a good performance explosive in ***,due to the strong hygroscopicity of ADN,its application in solid propellants and explosives is greatly *** the hygroscopicity of ADN is the key to realize the wide application of *** this paper,we systematically review the research progress of anti-hygroscopic strategies of ADN *** surface coating methods are focusing on solvent volatilization,solvent-non-solvent,melt crystallization and atomic layer deposition *** characteristics of the different methods are compared and analyzed,and the basis for the classification and selection of the coating materials are introduced in *** addition,the feasibility of material for surface coating of ADN is eva{1.ated by several compatibility analysis *** is highly expected that the liquid phase method(solvent volatilization method,solvent-non-solvent method)would be the promising method for future ADN coating because of its effective,safety and facile ***,polymer materials,are the preferred coating materials due to their high viscosity,easy adhesion,good anti-hygroscopic effect,and heat resistance,which make ADN weak hygroscopicity,less sensitive,easier to preserve and good compatibility.

关键词： Ammonium dinitramide(ADN) Energetic materials Anti-hygroscopic Surface coating Compatibility analysis

Progress and challenges of electrolyte modulation in aqueous zinc-ion batteries

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Rare Metals 2024年第7期43卷 2940-2967页

作者： Qi-Hang Yang lu-Fei {1. xiao-Yu {1. Meng-Meng Zhen Tianjin Key Laboratory of Clean Energy and Pollution {1. School of Energy and Environmental EngineeringHebei University of TechnologyTianjin 300071China

As a new type of green battery system,aqueous zinc-ion batteries(AZIBs)have gradually become a research hotspot due to their low cost,high safety,excellent stability,high theoretical capacity(820 mAh·g^(-1.)of zinc anode,and low redox potential(-0.76 V *** hydrogen electrode(SHE)).AZIBs have been expected to be an alternative to lithium-ion batteries for large-scale commercial energy storage ***,they are facing thorny issues such as degradation of cycling performance,zinc dendrites,and side *** the same time,these problems cause short cycling life of batteries,thus severely limiting their commercial *** recent years,many more researches have been conducted on the modification of anode and cathode materials of AZIBs,but there is a lack of in-depth discussion on the characteristics and mechanism of electrolyte *** this review,we will make a systematic summary of the current problems with two electrodes in AZIBs,as well as the types and functions of electrolyte ***,we further systematically describe the modulation mechanism of electrolyte additives in the performance of the cathode and *** prospects and development directions of additive modulation strategies for AZIBs electrolytes are prospected.

关键词： Electrolyte additives Aqueous zinc-ion batteries Zinc anode protection Cathode chemistry

Stability of linear discrete switched systems with delays based on average dwell time method

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Science china({1. Sciences) 2010年第6期53卷 1216-1223页

作者： wang Yong 1 , wang wei 1 & LIU GuoPing 2,3 1 research center of information and control, dalian university of technology, dalian 11602., china 2 Faculty of Advanced technology, university of Glamorgan, Pontypridd, CF37 1DL, UK 3 CTGT center in Harbin Institute of technology, Harbin 150001, china 1. research {1. of information and control Dalian University of Technology Dalian 116024 China2. Faculty of Advanced Technology University of Glamorgan Pontypridd CF37 1DL UK3. CTGT Center in Harbin Institute of Technology Harbin 150001 China

This paper deals with the problem of exponential stability for a class of linear discrete switched systems with constant *** switched systems consist of stable and unstable *** on the average dwell time method, some switching signals will be found to guarantee exponential stability of these *** explicit state decay estimation is also given in the form of the solutions of linear matrix inequalities(LMIs).An example relating to networked {1. systems(NCSs) illustrates the effectiveness of the proposed method.

关键词： switched systems average dwell time time delay LMI

Precision tuning of highly efficient Pt-based ternary alloys on nitrogen-doped multi-wall carbon nanotubes for methanol oxidation reaction

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Journal of Energy Chemistry 2024年第1期88卷 242-251,I0006页

作者： Xingqun Zheng Zhengcheng wang Qian Zhou Qingmei wang wei He Shun lu College of Safety Engineering Chongqing University of Science&TechnologyChongqing 401331China College of Chemistry and Chemical Engineering Chongqing UniversityChongqing 400044China School of Chemistry and Chemical Engineering Guizhou UniversityGuizhou 550025GuiyangChina Department of Chemistry University of Rhode IslandKingston 02881Rhode IslandUnited States Chongqing Institute of Green and Intelligent technology Chinese Academy of SciencesChongqing 400714China

The electrochemical methanol oxidation is a crucial reaction in the conversion of renewable *** enable the widespread adoption of direct methanol fuel cells(DMFCs),it is essential to create and engineer catalysts that are both highly effective and robust for conducting the methanol oxidation reaction(MOR).In this work,trimetallic PtCoRu electrocatalysts on nitrogen-doped carbon and multi-wall carbon nanotubes(PtCoRu@NC/MWCNTs)were prepared through a two-pot synthetic *** acceleration of CO oxidation to CO_(2) and the blocking of CO reduction on adjacent Pt active sites were attributed to the crucial role played by cobalt atoms in the as-prepared *** precise control of Co atoms loading was achieved through precursor *** physicochemical techniques were employed to analyze the morphology,element composition,and electronic state of the *** investigations and theoretical calculations confirmed that the Pt_(1.Co_(3)Ru_(1.@NC/MWCNTs exhibit excellent electrocatalytic performance and durability for the process of *** enhanced MOR activity can be attributed to the synergistic effect between the multiple elements resulting from precisely controlled Co loading content on surface of the electrocatalyst,which facilitates efficient charge *** interaction between the multiple components also modifies the electronic structures of active sites,thereby promoting the conversion of intermediates and accelerating the MOR ***,achieving precise control over Co loading in PtCoRu@NC/MWCNTs would enable the development of high-performance catalysts for DMFCs.

关键词： Ternary alloys Electrocatalysts Methanol oxidation reaction Electron transfer Theoretical calculations