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Target tracking algorithm based on a broad learning system

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Science china(Information Sciences) 2022年第5期65卷 261-263页

作者： Dan ZHANG Tieshan LI c.L.philip cHEN He yANG Navigation college Dalian Maritime University Innovation and Entrepreneurship Education college Dalian Minzu University School of Automation Engineering University of Electronic Science and Technology of China computer Science and Engineering college South China University of Technology

Target tracking is one of the most important research topics in the field of computer vision. It has been widely applied in aerospace, automatic monitoring, navigation, human-computer interaction, and artificial intel... 详细信息

关键词： Target tracking Broad learning system Selective search algorithm Multi-cue tracking Tracking adaptability

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聚合物有机光伏的电荷产生机理

高分子学报 2023年第6期54卷 927-942页

作者：周慈勇香港大学工程学院机械工程系中国香港999077

聚合物有机光伏近年来已经获得长足的发展,最新的研究报道以y6为代表的y系列非富勒烯受体体系取得了接近20%的能量转换效率,然而其电荷产生的具体机制尚存在争议.本文回顾了近年来对基于富勒烯受体和非富勒烯受体的聚合物有机光伏体系... 详细信息

聚合物有机光伏近年来已经获得长足的发展,最新的研究报道以y6为代表的y系列非富勒烯受体体系取得了接近20%的能量转换效率,然而其电荷产生的具体机制尚存在争议.本文回顾了近年来对基于富勒烯受体和非富勒烯受体的聚合物有机光伏体系的电荷产生机理的研究报道,介绍了2种体系工作机理的异同,指出富勒烯体系虽然可以实现超快的电荷分离,却普遍存在较大的能量损失;非富勒烯体系大幅降低了器件的能量损失,但其电荷产生过程相对较慢,并且在一些情况下需要热能的辅助来实现.本文分析了y系列体系实现高性能的可能原因,分析表明其具有的独特的分子堆积方式和电荷产生动力学均对其优异的性能有所贡献,并提出了进一步降低能量损失和提高器件性能的可能方法与展望.

关键词：聚合物有机光伏非富勒烯受体电荷产生电荷复合能量损失

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Using modeling and simulation and artificial intelligence to improve complex adaptive systems engineering

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International Journal of Modeling, Simulation, and Scientific computing 2022年第2期13卷 70-90页

作者： Andreas Tolk philip Barry Steven c.Doskey The MITRE corporation 1001 Research Park Blvd#220 CharlottesvilleVA 22911USA George Mason University 4400 University DrFairfax VA 22030USA The MITRE corporation 7525 Colshire DrMcLean VA 22102USA

Systems engineering practices are evolving to address fast-changing needs in fielding complex *** needs create an environment in which system needs evolve or change too quickly to be tracked or managed by humans’natural *** propose that systems engineering must aid systems engineering managers by providing architectural alternatives and design ***,as systems become more complex and dynamic,there is an increased need to identify hidden risks,model emergent behav-ior,and expose hidden patterns in the behavior of *** engineering needs to evolve to build fast-fielded,resilient,and adaptive systems that leverage posi-tive reinforcement feedback loops with multiple experimental and real-world information *** very basis of systems engineering must evolve from today’s development paradigms to a future that leverages modeling,simulation,and artificial intelligence to drastically improve the capability and agility for developing new *** paper proposes a common way forward to enable this new form of complex adaptive systems engineering.

关键词： complex systems digital twin systems engineering

Dynamic Event-Triggered consensus control for Input constrained Multi-Agent Systems With a Designable Minimum Inter-Event Time

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A new twist on graphene: an interview with Pablo Jarillo-Herrero and Allan MacDonald

自动化学报（英文版） 2024年第3期

作者： Meilin Li yue Long Tieshan Li Hongjing Liang c.L.philip chen

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National Science Review 2022年第4期9卷 186-191页

作者： philip Ball NSR from London

Graphene is the building block of graphite, made of carbon atoms bonded into sheets of hexagonal rings just a single atom thick. Although such isolated sheets had been predicted for many decades to exist, and had been grown on other surfaces, interest in this material exploded a?ter the discovery in 2004 that single sheets could be made easily and cheaply by separating them mechanically from graphite flakes(a process called exfoliation).

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Uncovering the Online Social Structure Surrounding cOVID-19

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Journal of Social computing 2021年第2期2卷 157-165页

作者： philip D.Waggoner Robert y.Shapiro Samuel Frederick Ming Gong Institute for Social and Economic Research and Policy Columbia UniversityNew York CityNY 10027USA Department of Political Science Columbia UniversityNew York CityNY 10027USA. Department of Quantitative Methods in the Social Sciences Columbia UniversityNew York CityNY 10027USA

How do people talk about cOVID-19 online?To address this question,we offer an unsupervised framework that allows us to examine Twitter framings of the *** approach employs a network-based exploration of social media data to identify,categorize,and understand communication patterns about the novel coronavirus on *** simplest structure that emerges from our analysis is the distinction between the internal/personal,external/global,and generic threat framings of the *** structure replicates in different Twitter samples and is validated using the variation of information measure,reflecting the significance and stability of our *** an exploratory study is useful for understanding the contours of the natural,non-random structure in this online *** contend that this understanding of structure is necessary to address a host of causal,supervised,and related questions downstream.

关键词： cOVID-19 networks community detection twitter exploratory data analysis

complementary and Alternative Medicine-related Drug-induced Liver Injury in Asia

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Journal of clinical and Translational Hepatology 2019年第3期7卷 263-274页

作者： cyriac Abby philips philip Augustine Sasidharan Rajesh Praveen Kumar y Deepak Madhu The Liver Unit and Monarch Liver Lab Cochin Gastroenterology GroupErnakulam Medical CentreKochiKeralaIndia Gastroenterology Cochin Gastroenterology GroupErnakulam Medical CentreKochiKeralaIndia Interventional Radiology Cochin Gastroenterology GroupErnakulam Medical CentreKochiKeralaIndia Gastroenterology Government Medical CollegeThrissurKeralaIndia Gastroenterology Aster MIMSCalicutKeralaIndia

The use of complementary and alternative medicines(cAMs)for treatment of acute and chronic diseases is on the rise world over,especially in Asian countries,and mostly in china and ***-induced liver injury(DILI)due to cAM is increasingly reported in the literature from multiple centers all around the world and with large-number patient series published from the West,mostly based on nation-wide DILI networks and multicenter *** DILI networks are lacking among major Asian countries with high incidence of cAM *** medical societies dealing with drug toxicity,cAM practice and hepatobiliary disease have adopted an integrated approach to establishing identification,diagnosis and treatment of cAM-related DILI,representing a systematic approach that could be iterated by other countries for improving patient *** this exhaustive review,we provide published data on cAM-related DILI in Asia,with detail on incidences along with analysis of patient population and their clinical *** and clear discussion on commonly implicated cAM agents in major Asian countries and associated chemical and toxicology analyses as well as descriptions of liver biopsy findings are discussed with future directions.

关键词： cAM Herbals Ayurveda chinese DILI Hepatitis cirrhosis AcLF Liver biopsy

Development of a miniature silicon wafer fuel cell using L-ascorbic acid as fuel

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2008年第7期9卷 955-960页

作者： Jian WU Zhi-yong XIAO yi-bin yING philip c.H. cHAN School of Biosvstems Engineering and Food Science Zhejiang University Hangzhou 310029 China Department of Electrical and Electronic Engineering Hong Kong University of Science and Technology Hong Kong China

In the current studies a miniature silicon wafer fuel cell(Fc) using L-ascorbic acid as fuel was developed. The cell employs L-ascorbic acid and air as reactants and a thin polymer electrolyte as a separator. Inductively coupled plasma(IcP) silicon etching was employed to fabricate high aspect-ratio columns on the silicon substrate to increase the surface area. A thin platinum layer deposited directly on the silicon surface by the sputtering was used as the catalyst layer for L-ascorbic acid electro-oxidation. cyclic voltammetry shows that the oxidation of L-ascorbic acid on the sputtered platinum layer is irreversible and that the onset potentials for the oxidation of L-ascorbic acid are from 0.27 V to 0.35 V versus an Ag/Agcl reference electrode. It is found that at the room temperature,with 1 mol/L L-ascorbic acid/PBS(phosphate buffered solution) solution pumped to the anode at 1 ml/min flow rate and air spontaneously diffusing to the cathode as the oxidant,the maximum output power density of the cell was 1.95 mW/cm2 at a current density of 10 mA/cm2.

关键词： L-ascorbic acid Fuel cell (Fc) Silicon wafer

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Formation control with obstacle avoidance of second-order multi-agent systems under directed communication topology

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Science china(Information Sciences) 2019年第9期62卷 144-157页

作者： Guoxing WEN c.L.philip cHEN Hui DOU Hongli yANG chunfang LIU college of Science Binzhou University Department of computer and Information Science Faculty of Science and Technology University of Macau college of Navigation Dalian Maritime University State Key Laboratory of Management and control for complex Systems Institute of AutomationChinese Academy of Sciences Mathematics and Systems Science college Shandong University of Science and Technology

This paper addresses the obstacle avoidance problem of formation control for the multi-agent systems modeled by double integrator dynamics under a directed interconnection topology. The control task is finished by a leader-follower formation scheme combined with an artificial potential field(APF) *** leader-follower scheme is carried out by taking the desired trajectory with the desired velocity as virtual leader, while the APF method is carried out by dealing with the obstacles as the high potential points. When the obstacle avoidance tasks are finished, the artificial potential forces degrade the formation performance, so their undesired effects are treated as disturbances, which is analyzed by the robust H∞performance. Based on Lyapunov stability theory, it is proved that the proposed formation approach can realize the control objective. The result is also extended to the switching multi-agent formation. The effectiveness of the proposed formation scheme is further confirmed by simulation studies.

关键词： formation control obstacle avoidance artificial potential field method H_∞ performance second-order multi-agent system directed topology