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Partition and planning:A human-like motion decision for UAV in trap environment

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Science China(Technological Sciences) 2024年第4期67卷 1226-1237页

作者： CHEN JinTao ZHOU Qi ren HongRu LI HongYi School of Automation Guangdong University of TechnologyGuangzhou 510006China Provincial Key Laboratory of Intelligent Decision and Cooperative Control Guangdong University of Technology Guangzhou 510006Chi

This paper presents a human-like motion decision-making method for unmanned aerial vehicles(UAVs)navigating in trap *** proposed a space partitioning method based on sampling and consistency control to conduct a preliminary analysis of the indoor environment based on architectural *** method reduces the dimensionality of the path planning problem,thereby enhancing the ***,we designed a target-switching logic for the dynamic window *** improvement endows the UAV with the capability of both real-time obstacle avoidance and global navigation,enhancing the efficiency of the UAV in flying to task spots ***,by applying human-like methods of batch distance perception and obstacle perception to this scheme,we have further enhanced the robustness and efficiency of path ***,considering the scenario of high-rise fire rescue,we conducted simulation *** demonstrates that our scheme enhances the efficiency and robustness of path planning.

关键词： path planning indoor environment spacial partition high-rise fire rescue

Parameter-Free Shifted Laplacian Reconstruction for Multiple Kernel Clustering

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IEEE/CAA Journal of Automatica Sinica 2024年第4期11卷 1072-1074页

作者： Xi Wu Zhenwen ren F.Richard Yu the School of National Defence Science and Technology Southwest University of Science and TechnologyMianyang 621010China the School of National Defence Science and Technology Southwest University of Science and TechnologyMianyang 621010 the Guangxi Key Laboratory of Machine Vision and Intelligent Control Wuzhou UniversityWuzhou 543002 the Guangdong Laboratory of Artificial Intelligence and Digital Economy(SZ) Shenzhen 518060China

Dear Editor,This letter proposes a parameter-free multiple kernel clustering(MKC)method by using shifted Laplacian *** MKC can effectively cluster nonlinear data,but it faces two main challenges:1)As an unsupervised method,it is up against parameter problems which makes the parameters intractable to tune and is unfeasible in real-life applications;2)Only considers the clustering information,but ignores the interference of noise within Laplacian.

关键词： parameter letter Parameter

The Stokes-Einstein-Debye relation in ortho-terphenyl liquid

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Communications in Theoretical Physics 2024年第5期76卷 148-153页

作者：任淦 School of Science Civil Aviation Flight University of ChinaGuanghan 618307China

The Stokes–Einstein–Debye(SED)relation is proposed to be broken down in supercooled liquids by many ***,conclusions are usually drawn by testing some variants of the SED relation rather than its original *** this work,the rationality of the SED relation and its variants is examined by performing molecular dynamics simulations with the Lewis–Wahnstrom model of ortho-terphenyl(OTP).The results indicate the original SED relation is valid for OTP but the three variants are all broken *** inconsistency between the SED relation and its variants is analyzed from the heterogeneous dynamics,the adopted assumptions and approximations as well as the interactions among ***,care should be taken when employing the variants to judge the validity of the SED relation in supercooled liquids.

关键词： Stokes-Einstein-Debye relation Stokes-Einstein relation supercooled liquids Stokes'formula

Obituary:*** Zhang(1963-2023)-A scientist focused on toxins and their underlying mechanisms to decipher human diseases

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Zoological Research 2024年第1期45卷 230-232页

作者： Wenhui Lee ren Lai the Key Laboratory of Bioactive Peptides of Yunnan Province Engineering Laboratory of Peptides of Chinese Academy of SciencesKIZ-CUHK Joint Laboratory of Bioresources and Molecular Research in Common DiseasesNational Resource Centre for Non-Human PrimatesKunming Primate Research CentreNational Research Facility for Phenotypic&Genetic Analysis of Model Animals(Primate Facility)Sino-African Joint Research CentreNew Cornerstone Science InstituteKunming Institute of ZoologyChinese Academy of SciencesKunmingYunnan 650107China

*** Zhang was born on 9 July 1963 in Kunming,Yunnan,China,during a tumultuous period which he often *** his life,he harbored a steadfast belief in using knowledge to unravel the mysteries of human *** educational journey was marked by frequent changes in schools due to his parents’occupational ***,despite these challenges,he consistently displayed diligence and was admitted to the East China University of Science and Technology,Shanghai,after completing high school in *** remained an active and loyal member of the School of Biotechnology at the university.

关键词： admitted harbor mechanisms

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基于云理论的鱼水雷装备修理能力评估方法

兵器装备工程学报 2019年第A1期40卷 102-105,116页

作者：朱拥勇陈光任俊鹏隋晓阳海军工程大学兵器工程学院武汉430033 中国人民解放军91024部队广东台山529266 中国人民解放军92038部队山东青岛266000

提出了基于云理论的鱼水雷装备修理能力评估方法,建立修理能力评估指标体系,阐述各指标云模型评价过程,采用加权云重心法构建能力评估综合云,实现评估中定性指标和定量指标的互相转换,得出评估结果。应用实例表明,本文提出的评估方法对... 详细信息

提出了基于云理论的鱼水雷装备修理能力评估方法,建立修理能力评估指标体系,阐述各指标云模型评价过程,采用加权云重心法构建能力评估综合云,实现评估中定性指标和定量指标的互相转换,得出评估结果。应用实例表明,本文提出的评估方法对模糊性和随机性进行了有效集成,简单易行,可操作性强,具备较好的实用价值。

关键词：云理论评估方法修理能力鱼水雷

Status Quo and Countermeasures of Sustainable Development for Zhenjiang Wanshan Hongbian Modern Agricultural Science Park

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Asian Agricultural Research 2019年第10期11卷 24-26页

作者： Weizhong LIU junpeng ren Zhijuan WANG Zhenjiang Institute of Agricultural Sciences in Hilly Areas of Jiangsu Province Jurong 212400China Zhenjiang Wanshan Hongbian Agricultural Park Jurong 212400China

In this paper,status quo of development in Zhenjiang Wanshan Hongbian Modern Agricultural Science Park is studied,and some problems are pointed out,such as unreasonable staffing structure and weak self-financing *** introduction strategy and branding and standardization strategy are proposed,and financing channels should be ***,agricultural production structure should be adjusted,and science and technology services should be *** research aims to provide the reference for sustainable development of similar modern agricultural science park in China.

关键词： Zhenjiang Wanshan Hongbian Modern Agricultural Science Park Sustainable development Status quo Countermeasures

AIMP2 restricts EV71 replication by recruiting SMURF2 to promote the degradation of 3D polymerase

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Virologica Sinica 2024年第4期39卷 632-644页

作者： Junrui ren Lei Yu Qiuhan Zhang Pengyu ren Yumeng Cai Xueyun Wang Ke Lan Shuwen Wu State Key Laboratory of Virology College of Life SciencesWuhan UniversityWuhan430072China Medical Research Institute Wuhan UniversityWuhan430072China Taikang Center for Life and Medical Sciences Wuhan UniversityWuhan430072China

Hand,foot and mouth disease(HFMD),mainly caused by enterovirus 71(EV71),has frequently occurred in the Asia-Pacific region,posing a significant threat to the health of infants and young ***,research on the infection mechanism and pathogenicity of enteroviruses is increasingly becoming *** 3D polymerase,as the most critical RNA-dependent RNA polymerase(RdRp)for EV71 replication,is widely targeted to inhibit EV71 *** this study,we identified a novel host protein,AIMP2,capable of binding to 3D polymerase and inhibiting EV71 *** investigations revealed that AIMP2 recruits the E3 ligase SMURF2,which mediates the polyubiquitination and degradation of 3D ***,the antiviral effect of AIMP2 extended to the CVA16 and CVB1 *** research has uncovered the dynamic regulatory function of AIMP2 during EV71 infection,revealing a novel antiviral mechanism and providing new insights for the development of antienteroviral therapeutic strategies.

关键词： AIMP2 Enterovirus 71(EV71) 3D polymerase E3 ligase SMURF2 Ubiquitination

Electrospinning-derived functional carbon-based materials for energy conversion and storage

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Chinese Chemical Letters 2024年第6期35卷 3-13页

作者： Xinyu ren Hong Liu Jingang Wang Jiayuan Yu Institute for Advanced Interdisciplinary Research(iAIR) School of Chemistry and Chemical EngineeringUniversity of JinanJi’nan 250022China State Key Laboratory of Crystal Materials Shandong UniversityJi’nan 250100China

The over-exploitation of fossil fuel energy has brought about serious environmental *** would be of great significance to construct efficient energy conversion and storage system to maximize utilize renewable energy,which contributes to reducing environmental *** the past few years,in terms of electrocatalysis and energy storage,carbon fiber materials show great advantages due to its outstanding electrical conductivity,good flexibility and mechanical *** a simple and low-cost technique,electrospinning can be employed to prepare various *** is noted that the functional fiber materials with different special structure and composition can be obtained for energy conversion and storage by combining electrospinning with other *** this paper,the structural design,controllable synthesis and multifunctional applications of electrospinning-derived functional carbon-based materials(EFCMs)is ***,we briefly introduce the history,basic principle and typical equipment of *** we discuss the strategies for preparing EFCMs with different structures and composition in *** addition,we show recently the application of advanced EFCMs in energy conversion and storage,such as nitrogen species reduction reaction,CO_(2) reduction reaction,oxygen reduction reaction,water-splitting,supercapacitors and ion *** the end,we propose some perspectives on the future development direction of EFCMs.

关键词： Electrospinning Carbon materials Functional fiber Energy conversion Energy storage Electrocatalysis

Adaptive State-Dependent Diffusion for Derivative-Free Optimization

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Communications on Applied Mathematics and Computation 2024年第2期6卷 1241-1269页

作者： Bjorn Engquist Kui ren Yunan Yang Department of Mathematics and the Oden Institute The University of TexasAustinTX 78712USA Department of Applied Physics and Applied Mathematics Columbia UniversityNew YorkNY10027USA Department of Mathematics Cornell UniversityIthacaNY 14853USA

This paper develops and analyzes a stochastic derivative-free optimization strategy.A key feature is the state-dependent adaptive *** prove global convergence in probability with algebraic rate and give the quantitative results in numerical examples.A striking fact is that convergence is achieved without explicit information of the gradient and even without comparing different objective function values as in established methods such as the simplex method and simulated *** can otherwise be compared to annealing with state-dependent temperature.

关键词： Derivative-free optimization Global optimization Adaptive diffusion Stationary distribution Fokker-Planck theory