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2.07北京地区高校研究生学术交流会通信与信息技术会议

作者： chen xingfeng~(1,2,3) gu xingfa~(1,2,3) xh hua~(2,3) 1 college of automation,university of electronic science and technology of china: 2.state key laboratory of remote sensing science,institute of remote sensing applications,cas,100101,beijing china 3 Demonstration Center of Spaceborn remote sensing,National Space Administration,100101,beijing china

Content-based image retrieval (CBIR) applications provide great convenience which help people find what they need from the tremendous amount *** retrieves images by features including color,shape and *** is the most popular one among vision features of *** Coherence Vector (CCV) is a classical method of *** is similar to the color histogram method,and it also considers some spatial feature,and is proved to be more *** paper describes an improved color coherence vector method,which has more spatial information,and works more efficiently.

关键词： Content-Based Image Retrieval(CBIR) Color Coherence Vector(CCV)

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guaranteed Cost Control For Networked Control System With Interval Time-varying Delay

Guaranteed Cost Control For Networked Control System With In...

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2.09中国控制与决策会议

作者： gu Zhou~(1,2.,Daobo Wang~1,Peng chen~3,Xiaobo Zhao~2.1.{2. of automation Engineering,Nanjing university of Aeronautics Astronautics,Nanjing 2.0016,china 2.School of Power Engineering,Nanjing Normal university Nanjing,2.0042.china 3.institute of Information and Control Engineering technology,Nanjing Normal university,Nanjing,2.0042.china

This paper is concerned with the guaranteed cost controller design of Networked control systems(NCSs) with interval varying *** non-ideal Quality of Servise(QoS) are taken into account by an integrated indexτ(t),which related to data dropout,network-induced delay and error sequence.A new analysis method is provided by using the convexity of the matrix function in deriving the results to avoid the conservatism caused by enlargingτ(t) toτ.Suboptimal guaranteed cost {2. feedback controller and performance index are developed by solving a set of LMIs based on Lyapunov functional method and a cone complementary linearisation(CCL) *** example and simulation results are given finally to illustrate the effectiveness of our methods.

关键词： guaranteed cost control Interval time-varying delay Convexity of matrix function

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Boric Acid-Assisted Pyrolysis for High-Loading Single-Atom Catalysts to Boost Oxygen Reduction Reaction in Zn-Air Batteries

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Energy & Environmental Materials 2024年第2期7卷 102-110页

作者： chenxi Xu Jiexing Wu Liang chen Yi Gong Boyang Mao Jincan Zhang Jinhai Deng Mingxuan Mao Yan Shi Zhaohui Hou Mengxue Cao {2.nxin Li Haihui Zhou Zhongyuan {2.ng Yafei Kuang state Key laboratory for Chemo/Bio{2. and Chemometrics and college of Chemistry and Chemical Engineering Hunan UniversityChangsha 410082China School of Chemistry and Chemical Engineering Key Laboratory of Hunan Province for Advanced Carbon-based Functional MaterialsHunan Institute of Science and TechnologyYueyang 414006China Advanced technology institute University of SurreyGuildford Surrey GU27XHUK Department of Engineering University of Cambridge9 JJ Thomson AvenueCambridge CB30FAUK King's college London London SE11ULUK Department of Electrical and electronic Engineering Imperial College LondonLondon SW72AZUK college of Materials and Metallurgy Guizhou UniversityGuiyang 550025China Department of Chemistry Physical&Theoretical Chemistry LaboratoryUniversity of OxfordSouth Parks RoadOxford OX13QZUK

The emerging of single-atom catalysts(SACs)offers a great opportunity for the development of advanced energy storage and conversion devices due to their excellent activity and durability,but the actual mass production of high-loading SACs is still ***,a facile and green boron acid(H_(3)BO_(3))-assisted pyrolysis strategy is put forward to synthesize SACs by only using chitosan,cobalt salt and H_(3)BO_(3)as precursor,and the effect of H_(3)BO_(3)is deeply *** results show that molten boron oxide derived from H_(3)BO_(3)as ideal high-temperature carbonization media and blocking media play important role in the synthesis *** a result,the acquired Co/N/B tri-doped porous carbon framework(Co-N-B-C)not only presents hierarchical porous structure,large specific surface area and abundant carbon edges but also possesses high-loading single Co atom(4.2.wt.%),thus giving rise to outstanding oxygen catalytic *** employed as a catalyst for air cathode in Zn-air batteries,the resultant Co-N-B-C catalyst shows remarkable power density and long-term ***,our work gains deep insight into the role of H_(3)BO_(3)and provides a new avenue to synthesis of high-performance SACs.

关键词： boric acid oxygen reduction reaction single-atom catalysts Zn-air batteries

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Superresolution structured illumination microscopy reconstruction algorithms:a review

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光:科学与应用(英文版) 2023年第8期12卷 1510-1543页

作者： Xin chen Suyi Zhong Yiwei Hou Ruijie Cao Wenyi Wang Dong Li Qionghai Dai Donghyun Kim Peng Xi Department of Biomedical Engineering College of Future TechnologyPeking UniversityBeijing 100871China National Biomedical Imaging Center Peking UniversityBeijing 100871China National laboratory of Biomacromolecules CAS Center for Excellence in BiomacromoleculesInstitute of BiophysicsChinese Academy of SciencesBeijingChina Department of automation Tsinghua UniversityBeijingChina institute for Brain and Cognitive sciences Tsinghua UniversityBeijingChina beijing Key laboratory of Multidimension&Multiscale Computational Photography Tsinghua UniversityBeijingChina beijing laboratory of Brain and Cognitive Intelligence Beijing Municipal Education CommissionBeijingChina School of Electrical and electronic Engineering Yonsei University50 Yonsei-RoSeodaemun-GuSeoul 03722Korea

Structured illumination microscopy(SIM)has become the standard for next-generation wide-field microscopy,offering ultrahigh imaging speed,superresolution,a large fiield-of-view,and long-term *** the past decade,SIM hardware and software have flourished,leading to successful applications in various biological ***,unlocking the full potential of SIM system hardware requires the development of advanced reconstruction ***,we introduce the basic theory of two SIM algorithms,namely,optical sectioning SIM(OS-SIM)and superresolution SIM(SR-SIM),and summarize their implementation *** then provide a brief overview of existing OS-SIM processing algorithms and review the development of SR-SIM reconstruction algorithms,focusing primarily on 2.-SIM,3D-SIM,and *** showcase the {2.-of-the-art development of SIM systems and assist users in selecting a commercial SIM system for a specific application,we compare the features of representative off-the-shelf SIM ***,we provide perspectives on the potential future developments of SIM.

关键词： illumination hardware offering

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Chemical looping based ammonia production--A promising pathway for production of the noncarbon fuel

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science Bulletin 2022年第20期67卷 2124-2138,M0004页

作者： Qinghua Lai Tianyi Cai Shik Chi Edman Tsang Xia chen Runping Ye Zhenghe Xu Morris D.Argyle Dong Ding Yongmei chen Jianji Wang Armistead G.Russell Ye Wu Jian Liu Maohong Fan college of Engineering and Applied science University of WyomingLaramie WY 82071USA School of Energy and Power Engineering Shanghai Key Laboratory of Multiphase Flow and Heat Transfer in Power EngineeringUniversity of Shanghai for Science and TechnologyShanghai 200093China Wolfson Catalysis Department of ChemistryUniversity of OxfordOxford Ox13QRUK college of Chemistry and Chemical Engineering Ocean University of ChinaQingdao 266100China state Key laboratory of Catalysis Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023China Department of Materials science and Engineering Southern University of Science and TechnologyShenzhen 518055China Department of Chemical and Materials Engineering University of AlbertaEdmonton Alberta T6G1H9Canada Department of Chemical Engineering Brigham Young UniversityProvo UT 84602USA Idaho National laboratory Idaho Falls ID83415USA college of Chemistry Beijing University of Chemical TechnologyBejing 100029China School of Chemistry and Environmental science Henan Normal UniversityXinxiang 453007China School of Civil and Environmental Engineering Georgia Institute of TechnologyAtlanta GA 30332USA MIIT Key laboratory of Thermal Control of electronic Equipment School of Power EngineeringNanjing University of Science&TechnologyNanjing 210094China DICP-Surrey Joint Centre for Future Materials Department of Chemical and Process Engineeringand Advanced Technology InstituteUniversity of SurreyGuilford Surrey GU27XH UK

Ammonia, primarily made with Haber-Bosch process developed in 1909 and winning two Nobel prizes, is a promising noncarbon fuel for preventing global warming of 1.5 °C above pre-industrial levels. However,the undesired characteristics of the process, including high carbon footprint, necessitate alternative ammonia synthesis methods, and among them is chemical looping ammonia production(CLAP) that uses nitrogen carrier materials and operates at atmospheric pressure with high product selectivity and energy efficiency. To date, neither a systematic review nor a perspective in nitrogen carriers and CLAP has been reported in the critical area. Thus, this work not only assesses the previous results of CLAP but also provides perspectives towards the future of CLAP. It classifies, characterizes, and holistically analyzes the fundamentally different CLAP pathways and discusses the ways of further improving the CLAP performance with the assistance of plasma technology and artificial intelligence(AI).

关键词： Ammonia synthesis Chemical looping Nitrogen carrier Renewable fuels Energy carrier

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