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Event-triggered-based self-organizing fuzzy neural network control for the municipal solid waste incineration process

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Science China(Technological Sciences) 2023年第4期66卷 1096-1109页

作者： HE HaiJun MENG xi tanG jian QIAO JunFei Faculty of Information Technology Beijing University of TechnologyBejing 100124China Beijing Laboratory of Smart Environmental Protection Beijing 100124China Beijing Key Laboratory of Computational Intelligence and Intelligent System Bejing 100124China Engineering Research Center of Intelligence Perception and Autonomous Control Ministry of Education Bejing 100124China xi'an Institute of Electromechanical Information Technology Xi'an 710065China

Due to the large uncertainty in the municipal solid waste incineration(MSWI)process,the furnace temperature of the MSWI process is difficult to control and the controller is updated *** improve the accuracy and reduce the number of controller updates,a novel event-triggered control method based correntropy self-organizing TS fuzzy neural network(ETCSTSFNN)is ***,the neurons of the rule layer are grown or pruned adaptively based on activation intensity and control error to meet the dynamic change of the actual operating ***,the performance index is designed based on the correntropy of tracking errors,and the parameters of the controller are adjusted by gradient descent ***,a fixed threshold event-triggered condition is designed to determine whether the current controller is updated or *** stability of the control system is proved based on the Lyapunov stability ***,the furnace temperature control experiments are conducted based on the actual data of a municipal solid waste incineration plant in *** experimental results show that the proposed ET-CSTSFNN controller shows a better control performance,which can reduce the number of the controller update significantly while achieving accurate furnace temperature control compared with other traditional control methods.

关键词： municipal solid waste incineration furnace temperature fuzzy control event-triggered

Analyses for specific defects in Android applications:a survey

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Frontiers of Computer Science 2019年第6期13卷 1210-1227页

作者： Tianyong WU xi DENG Jun YAN jian ZHANG State Key Laboratory of Computer Science Institute of SoftwareChinese Academy of SciencesBeijing 100190China University of Chinese Academy of Sciences Beijing 100049China Technology Center of Software Engineering Institute of SoftwareChinese Academy of SciencesBeijing 100190China

Android applications(APPS)are in widespread use and have enriched our *** ensure the quality and security of the apps,many approaches have been proposed in recent years for detecting bugs and defects in the apps,of which program analysis is a major *** paper mainly makes an investigation of existing works on the analysis of Android *** summarize the purposes and proposed techniques of existing approaches,and make a taxonomy of these works,based on which we point out the trends and challenges of research in this *** our survey,we sum up four main findings:(1)program analysis in Android security field has gained particular attention in the past years,the fields of functionality and performance should also gain proper attention;the infrastructure that supports detection of various defects should be enriched to meet the industry’s need;(2)many kinds of defects result from developers’misunderstanding or misuse of the characteristics and mechanisms in Android system,thus the works that can systematically collect and formalize Android recommendations are in demand;(3)various program analysis approaches with techniques in other fields are applied in analyzing Android apps;however,they can be improved with more precise techniques to be more applicable;(4)The fragmentation and evolution of Android system blocks the usability of existing tools,which should be taken into consideration when developing new approaches.

关键词： Android apps program analysis security functionality performance

基于注意力机制的高光谱图像降维在纸质文物霉斑识别的研究

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光谱学与光谱分析 2025年第1期45卷 246-255页

作者：汤斌贺渝龙唐欢龙邹荣王建旭谭博文覃丹罗希玲赵明富重庆理工大学重庆市光纤传感与光电检测重点实验室重庆400054 馆藏文物有害生物控制研究国家文物局重点科研基地(重庆中国三峡博物馆) 重庆400060

纸质文物作为文物传承的重要工具,用于记录不同时期人类历史及人文风貌,其在保存过程中极易受到霉菌等微生物的侵害。霉菌会加速纤维素的降解,在纸张表面生成霉斑,并且散落的孢子会随空气流动大范围传播,增加其他纸质文物发生霉变的风... 详细信息

纸质文物作为文物传承的重要工具,用于记录不同时期人类历史及人文风貌,其在保存过程中极易受到霉菌等微生物的侵害。霉菌会加速纤维素的降解,在纸张表面生成霉斑,并且散落的孢子会随空气流动大范围传播,增加其他纸质文物发生霉变的风险。因此,定期对纸质文物进行霉斑检测对了解纸质文物现状和纸质文物修复至关重要。高光谱成像技术是一种非接触性、非破坏性的检测技术,能同时获得空间数据和光谱数据,与计算机技术结合可以实现纸质文物的大批次实时无损检测。针对黑曲霉这一广泛出现的霉菌,提出一种基于注意力机制的高光谱数据降维方法,通过采集其高光谱数据,实现了高光谱冗余数据的自适应预处理。采集了来自重庆中国三峡博物馆提供的20份纸质文物黑曲霉霉斑样本,使用ENVI软件分析得出在413~855 nm波段范围内,黑曲霉霉斑感染区域和健康区域的平均光谱曲线,平均反射率差异明显;在855~1021 nm波段范围内,黑曲霉霉斑感染区域和墨迹区域的平均光谱曲线,平均反射率差异明显。文中将所提出方法与传统主成分分析和独立成分分析预处理方法分别处理原始高光谱数据,并将结果在经典U-Net、SegNet、DeepLabV3+和PSPNet四个语义分割网络上进行了对比。结果表明,该算法预处理的数据在U-Net和SegNet经典网络中有明显优势,相较于主成分分析法和独立成分分析法,霉斑识别精度取得了较大提升达到89.49%和88.46%,验证了本文所提出算法的有效性,为文物保护领域提供有效的支撑和新的思路。

关键词：高光谱数据预处理霉斑识别纸质文物注意力机制图像分割

Theoretical and experimental study of surface texturing with laser machining

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Advances in Manufacturing 2021年第4期9卷 538-557页

作者： Ya-Zhou Mao jian-xi Yang Jin-Chen Ji School of Mechatronics Engineering Henan University of Science and TechnologyLuoyang 471003HenanPeople’s Republic of China School of Mechanical and Mechatronic Engineering University of Technology SydneySydneyNSW 2007Australia

To explore the forming process and mechanism of the surface texture of laser micropits,this paper presents the thermal model of laser machining based on the Neumann boundary conditions and an investigation on the effects of various parameters on the *** surface profile and quality of the formed micropits were analyzed using NanoFocus 3D equipment through a design of experiment(DOE).The results showed that more intense melting and splashing occurred with higher power density and narrower pulse ***,the compressive stress is an important indicator of the damage effects,and the circumferential thermal stress is the primary factor influencing the diameter *** the process of laser machining,not only did oxides such as CuO and ZnO generate,the energy distribution also tended to decrease gradually from region#1 to region#3 based on an energy dispersive spectrometer(EDS)*** factors significantly affecting the surface quality of the micropit surface texture are the energy and pulse *** relationship between taper angle and energy is appropriately *** on the formation process and mechanism of the surface texture of laser micropits provides important guidance for precision machining.

关键词： Laser machining Thermal stress damage Surface texturing Design of experiment(DOE) Micropit

Artifact-centric workflow management system

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计算机集成制造系统 2011年第8期17卷 1709-1721页

作者： SUN Yu-tian LIU xi KUCUKOGUZ Esra SU jian-wen YANG jian University of California Santa Barbara CA 93106-5110 USA Nanjing University Nanjing 210093 China Macquarie University Sydney NSW 2109 Australia

Data-centric modeling approach for workflow specification and design has received considerable attention from research and development *** architecture for a workflow management system named EZFLOWS was *** components... 详细信息

关键词： workflow artifact-centric modeling business process management

Tungsten pnictides for water electrolysis:advances and perspectives

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Tungsten 2024年第4期6卷 675-695页

作者： Xue Kang xi-Han tan Ning Han jian-Feng Hou Chen-Min Yao Zhi-Jie Chen Bing-Jie Ni Department of Chemistry and Chemical Engineering Lyuliang UniversityLvliang033001China Department of Materials Engineering KU LeuvenLouvain3001Belgium State Key Laboratory of Oral&Maxillofacial Reconstruction and Regeneration Key Laboratory of Oral Biomedicine Ministry of EducationHubei Key Laboratory of StomatologySchool&Hospital of StomatologyWuhan UniversityWuhan430079China School of Civil and Environmental Engineering The University of New South WalesSydneyNSW 2052Australia

Hydrogen fuel is recognized as a promising energy carrier for the sustainable development of global energy system and the green hydrogen production via water electrolysis attracts great *** development of cost-effective electrocatalysts for water electrolysis is important for enhancing green hydrogen production ***,tungsten pnictides(phosphides and nitrides)have emerged as promising catalysts for water electrolysis,and efficient tungsten pnictide-based catalysts with different nanostructures,compositions,and surface chemical properties have been *** this review,recent progress in the design of tungsten pnictide-based electrocatalysts for water electrolysis is comprehensively *** synthesis of tungsten pnictide-based electrocatalysts are discussed ***,current achievements in developing efficient tungsten pnictide electrocatalysts for water electrolysis are detailed,and four key catalyst design strategies(i.e.,nanostructure control,heteroatom doping,defect engineering,and heterostructure design)are *** physicochemical properties-catalytic performance relationship of tungsten pnictide-based electrocatalysts is also *** last,perspectives in this field are put forward for guiding further research on the design and application of high-performance tungsten pnictide-based electrocatalysts.

关键词： Tungsten nitrides Tungsten phosphides Hydrogen evolution reaction Oxygen evolution reaction Electrocatalysts

BCDC： A High-Performance, Server-Centric Data Center Network

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Journal of Computer Science & Technology 2018年第2期33卷 400-416页

作者： xi Wang jian-xi Fan Cheng-Kuan Lin Jing-Ya Zhou Zhao Liu School of Computer Science and Technology Soochow University Suzhou 215006 China School of Software and Services Outsourcing Suzhou Institute of Industrial Technology Suzhou 215004 China

The capability of the data center network largely decides the performance of cloud computing. However, the number of servers in the data center network becomes increasingly huge, because of the continuous growth of the application requirements. The performance improvement of cloud computing faces great challenges of how to connect a large number of servers in building a data center network with promising performance. Traditional tree-based data center networks have issues of bandwidth bottleneck, failure of single switch, etc. Recently proposed data center networks such as DCell, FiConn, and BCube, have larger bandwidth and better fault-tolerance with respect to traditional tree-based data center networks. Nonetheless, for DCell and FiConn, the fault-tolerant length of path between servers increases in case of failure of switches; BCube requires higher performance in switches when its scale is enlarged. Based on the above considerations, we propose a new server-centric data center network, called BCDC, based on crossed cube with excellent performance. Then, we study the connectivity of BCDC networks. Furthermore, we propose communication algorithms and fault-tolerant routing algorithm of BCDC networks. Moreover, we analyze the performance and time complexities of the proposed algorithms in BCDC networks. Our research will provide the basis for design and implementation of a new family of data center networks.

关键词： data center network interconnection network crossed cube server-centric fault-tolerant

An epigenetic regulatory switch controlling temperature-dependent sex determination in vertebrates

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Science China(Life Sciences) 2018年第8期61卷 996-998页

作者： xi-Yin Li jian-Fang Gui State Key Laboratory of Freshwater Ecology and Biotechnology Institute of Hydrobiology The Innovative Academy of Seed Design Chinese Academy of Sciences Wuhan 430072 China University of Chinese Academy of sciences Beijing 100049 China

Most vertebrates present two sexes, and females and males are determined via two diverse strategies including geno-typic sex determination （GSD） and environmental sex de-termination （ESD）（Mei and Gui, 2015; Ma et al., 2016）. The most common form of ESD is temperature-dependent sex determination （TSD）. Although several master sex-de-termining genes and their molecular pathways have been elucidated in vertebrates with GSD, the molecular mechan-ism underlying TSD remains unclear （Bachtrog et al., 2014; Capel, 2017）.

关键词：脊椎动物温度依赖开关控制性别规章环境性 Gui ESD

Study on the Total Amount Control of Atmospheric Pollutant Based on GIS

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Biomedical and Environmental Sciences 2005年第4期18卷 233-237页

作者： jian-PING WANG xi-KUN GUO College of Science Shantou University Shantou 51500 Guangdong China

To provide effective environmental management for total amount control of atmospheric pollutants. Methods An atmospheric diffusion model of sulfur dioxide on the surface of the earth was established and tested in Shantou of Guangdong Province on the basis of an overall assessment of regional natural environment, social economic state of development, pollution sources and atmospheric environmental quality. Compared with actual monitoring results in a studied region, simulation values fell within the range of two times of error and were evenly distributed in the two sides of the monitored values. Predicted with the largest emission model method, the largest emission of sulfur dioxide would be 54 279.792 tons per year in 2010. Conclusion The mathematical model established and revised on the basis of GIS is more rational and suitable for the regional characteristics of total amount control of air pollutants.

关键词： Total amount control of atmospheric pollutants Atmospheric diffusion model Pollution source GIS