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2024 China Automation Congress, CAC 2024

作者： Zhou, Yan Xiong, Yonghua School of Automation China University of Geosciences Hubei Key Laboratory of Advanced Control and Intelligent Automation for Complex Systems Engineering Research Center of Intelligent Technology for Geo-Exploration Ministry of Education Wuhan430074 China

ISBN: (纸本)9798350368604

The widespread application of unmanned aerial vehicle (UAV) has made the coverage path planning problem for multiple UAV systems a research hotspot. In this paper, we propose a multi-UAV solution to achieve complete coverage of multi-region. Based on this solution, we present an improved particle swarm optimization (PSO) algorithm that combines PSO algorithm, greedy strategy, and back-and-forth (BAF) algorithm. Its purpose is to plan the optimal paths for multi-UAV while achieving the shortest total distance and the highest UAV cooperation efficiency with the minimum number of UAVs, thereby enhancing the multi-UAV coverage cooperation and path optimization capabilities. Simulation results demonstrate the feasibility and superiority of this algorithm. © 2024 IEEE.

关键词： Particle swarm optimization (PSO)

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Research on Urban Air Quality Prediction Method Based on the Fusion of Wide-area Spatiotemporal Distribution Data 26

Research on Urban Air Quality Prediction Method Based on the...

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26th International Conference on Industrial Technology, ICIT 2025

作者： Tao, Zixing Cao, Weihua Gan, Chao Wuhan China School of Future Technology School of Automation Hubei Key Laboratory of Advanced Control and Intelligent Automation for Complex Systems Wuhan China

ISBN: (纸本)9798331521950

Air quality data exhibit nonlinearity, sensitivity to environmental factors, and long-term dependencies. Numerous factors influence air quality, making accurate predictions based on a single-dimensional dataset impractical. This study proposes a method for urban air quality prediction that integrates wide-area spatiotemporal data, designed to address the unique characteristics of air quality datasets. First, relevant wide-area spatiotemporal data are selected, and their correlations with air quality are systematically analyzed. Second, a Long Short-Term Memory (LSTM) network-based Transformer model is utilized to capture the long-term dependencies in the air quality sequences. Finally, the model successfully generates hourly multi-step predictions for six air pollutants. The experimental results show that the proposed method outperforms the method that relies on air quality data alone for multi-step air quality prediction. © 2025 IEEE.

关键词： Air quality

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Neural Network-Based Fully Actuated System Approach for Free-Flying Space Manipulator

Neural Network-Based Fully Actuated System Approach for Free...

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2023 China Automation Congress, CAC 2023

作者： Zhao, Qin Duan, Guang-Ren Tian, Guangtai Southern University of Science and Technology Shenzhen Key Laboratory of Control Theory and Intelligent Systems Shenzhen China

ISBN: (纸本)9798350303759

This study explores the trajectory tracking control problem of a free-flying space manipulator subject to parametric uncertainties, external disturbance, and actuator saturation. An adaptive control strategy, employing the fully actuated system (FAS) approach, is designed, wherein the radial basis function neural network (RBFNN) is incorporated to offset lumped uncertainties. As a result, a constant linear closed-loop system is obtained with an arbitrarily assigned eigenstructure. Then the parametric method is utilized for controller parameter selection. In the context of Lyapunov theory, the presented controller ensures robust convergence of position and velocity tracking errors to a small neighborhood of the origin. A numerical simulation is finally performed to validate the efficacy of the presented controllers. © 2023 IEEE.

关键词： controllers

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A Modeling Study Recurrent Tuberculosis Towards End TB Strategy—China,2025-2035

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China CDC weekly 2024年第35期6卷 885-890页

作者： Tao Li Xin Du Zhongwei Jia Yanlin Zhao Department of Epidemiology and Biostatistics School of Public HealthPeking UniversityBeijingChina Chinese Center for Disease Control and Prevention BeijingChina National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases Chinese Center for Disease Control and PreventionBeijingChina Center for Intelligent Public Health Institute for Artificial IntelligencePeking UniversityBeijingChina Department of Global Health School of Public HealthPeking UniversityBeijingChina Center for Drug Abuse Control and Prevention National Institute of Health Data SciencePeking UniversityBeijingChina

Summary What is already known about this topic?The recurrence of tuberculosis(TB)following successful treatment presents a significant *** is added by this report?Achieving the global End TB Strategy milestones and targets with the current strategies in China is ***,interventions following recovery to prevent recurrence,in conjunction with preventive treatment for latent TB infection(LTBI),will aid in meeting these objectives.

关键词： Strategy tuberculosis treatment

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Cooperative Output Regulation of Heterogeneous systems over Directed Graphs:A Dynamic Adaptive Event-Triggered Strategy

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Journal of systems Science & Complexity 2023年第3期36卷 909-921页

作者： SU Hang CHENG Bin LI Zhongkui State Key Laboratory for Turbulence and Complex Systems and Department of Mechanics and Engineering Science College of EngineeringPeking UniversityBeijing 100871China Department of Control Science and Engineering College of Electronics and Information EngineeringTongji UniversityShanghai 201804China Frontiers Science Center for Intelligent Autonomous Systems Shanghai 201210China

This paper investigates the cooperative output regulation problem of heterogeneous linear multi-agent systems over directed graphs with the constraint of communication *** that there exists an exosystem whose state information is not available to all agents,the authors develop distributed adaptive event-triggered observers for the followers based on relative information between neighboring *** should be pointed out that,two kinds of time-varying gains are introduced to avoid relying on any global information associated with the network,and dynamic triggering conditions are designed to get rid of continuous *** the basis of the designed observers,the authors devise a local controller for each *** with the existing related works,the main contribution of the current paper is that the cooperative output regulation problem for general directed graphs is solved requiring neither global information nor continuous communications.

关键词： Adaptive control consensus cooperative output regulation directed graph event-triggered control multi-agent systems

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The Method of Negative Correlation as an Effective Means of Processing an Experiment to Determine the Frequency Characteristics of an Object 7

The Method of Negative Correlation as an Effective Means of ...

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7th International Conference on Information, control, and Communication Technologies, ICCT 2023

作者： Pikina, Galina Suslov, Daniil Pashchenko, Fedor National Research University 'MEl' Dept. 'Automated Control Systems Thermal Processes' Moscow Russia V.A. Trapeznikov Institute of Control Sciences of Ras Laboratory of Intelligent Control and Modeling Systems Moscow Russia

ISBN: (纸本)9798350340945

The article poses and solves the problem of creating an experiment processing method that is compact, high-precision and convenient for use as part of an adaptive controller. These requirements are met by the author's method of negative correlation. The method uses the property of effective ASC. It consists in the fact that the frequency of natural oscillations of the system is significantly higher than the cutoff frequencies of the disturbing influences. Taking into account the low frequency, it turns out to be sufficient to measure only two ordinates for estimating the amplitude of oscillations and two ordinates for estimating their phase, followed by averaging over a set of periods. Each pair is separated by an interval equal to the half-period of the harmonic, and as a result, by a sign change. The sign change causes the use of the subtraction operation when averaging over the set, instead of the addition operation, the correlation moment is subtracted from the noise variance, and due to which it is accompanied by a significant decrease in the influence of the noise on the accuracy estimate. Analytical expressions are obtained for the absolute maximum amplitude and phase errors for a given confidence level. The experiment planning procedure was designed to obtain the desired a priori information about the perturbation and system properties. The program was developed in the Mathcad environment. Researches of the methods offered in work are carried out. They showed high efficiency, as well as the possibility of their practical use as part of an adaptive controller. © 2023 IEEE.

关键词： Cutoff frequency

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Establishment and Modification of Ninety-seven Pneumococcal Serotyping Assays Based on Quantitative Real-time Polymerase Chain Reaction

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Biomedical and Environmental Sciences 2023年第9期36卷 787-799页

作者： CHE Jie CHEN Bo Han XU Li GAO Yuan YUE Meng Meng CHEN Zi Man ZHANG Mao Jun SHAO Zhu Jun National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases National Institute for Communicable Disease Control and PreventionChinese Center for Disease Control and PreventionBeijing 102206China School of Public Health Nanjing Medical UniversityNanjing 210029Jiangsu China

Objective To establish and modify quantitative real-time polymerase chain reaction(qPCR)-based serotyping assays to distinguish 97 pneumococcal *** A database of capsular polysaccharide(cps)loci sequences was generated,covering 97 pneumococcal *** analyses were performed to identify the cps loci structure and target genes related to different pneumococcal serotypes with specific SNPs.A total of 27 novel qPCR serotyping assay primers and probes were established based on qPCR,while 27 recombinant plasmids containing serotype-specific DNA sequence fragments were constructed as reference target sequences to examine the specificity and sensitivity of the qPCR assay.A panel of pneumococcal reference strains was employed to evaluate the capability of pneumococcal *** A total of 97 pneumococcal serotyping assays based on qPCR were established and modified,which included 64 serotypes previously reported as well as an additional 33 ***-seven novel qPCR serotyping target sequences were implemented in the pneumococcal qPCR serotyping system.A total of 97 pneumococcal serotypes,which included 52 individual serotypes and 45 serotypes belonging to 20 serogroups,could not be identified as individual *** sensitivity of qPCR assays based on 27 target sequences was 1–100 copies/μ*** specificity of the qPCR assays was 100%,which were tested by a panel of 90 serotypes of the pneumococcal reference *** A total of 27 novel qPCR assays were established and modified to analyze 97pneumococcal serotypes.

关键词： Streptococcus pneumoniae Serotyping cps loci Quantitative real-time PCR(qPCR)

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Elements of the Smart Geometrical control Technology for Unmanned Aerial Vehicles

Elements of the Smart Geometrical Control Technology for Unm...

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2023 International Ural Conference on Electrical Power Engineering, UralCon 2023

作者： Khachumov, Mikhail Abramov, Nikolai Khachumov, Vyacheslav Ailamazyan Program Systems Institute of Russian Academy of Sciences Intelligent Control Laboratory Pereslavl-Zalessky Russia

ISBN: (纸本)9798350303391

The authors propose a multimodal control system for an unmanned quadcopter integrating various information input, processing, and transmission methods, as well as the methods of geometrical and smart control. The smart control component is associated with the processing of voice and gesture commands recognized using artificial neural networks of deep learning. The geometrical components are associated with routing, solving problems of trajectory and target following, as well as video camera aiming. It is also a minimum-time problem. The authors provide a generic design of the control system. controlling the on-board camera plays a significant role. The video camera monitors a ground-based (moving or stationary) object, and it can switch to the point determined by the operator. To forecast the movement of the target, the authors use an artificial neural network (ANN) with a new s-parabola activation function that facilitates fast learning and calculation of the set function. To model the control during the mission, the authors built and analyzed a dynamic control model as an automatic control system based on transfer functions. During the flight, the system experiences wind loads that hinder precise control and camera aiming for ground-based targets. The system is modeled in MATLAB and Simulink software. © 2023 IEEE.

关键词： Geometry

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The Model of Managing a Group of UAVs by a Single Operator for Tasks Requiring Increased Attention

The Model of Managing a Group of UAVs by a Single Operator f...

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2023 International Conference on Industrial Engineering, Applications and Manufacturing, ICIEAM 2023

作者： Khachumov, Mikhail Khachumov, Vyacheslav Intelligent Control Laboratory Ailamazyan Program Systems Institute of Ras Pereslavl-Zalessky Russia Rudn University Moscow Russia Federal Research Center Computer Science and Control of Ras Moscow Russia

ISBN: (纸本)9781665475952

The problem of optimizing the load on an operator of unmanned aerial vehicles (UAVs), which performs real-time tasks of researching and monitoring territories in an unstable environment is considered. Working load depends on the intensity of the information exchange between onboard and ground control stations and is determined by the agreed limit that leads to a limitation in the number of managed vehicles. As a mathematical model of the multi-functional control system, we use a closed-loop queuing system, which allows to establish coordination among its major elements (onboard computing complex, ground control station and operator) and reduce the loss of service requests. The latter is one of the main requirements to functioning of the system during emergencies. Of considerable interest are optimization statements for the problems of distribution of functions between elements and choosing the load modes. We gave formulations of some optimization problems in a general form and made appropriate conclusions. It is assumed that as an applied task, the problem of monitoring fire sites in forest areas can be considered, which requires increased attention from the operator to process information coming to the ground control station. © 2023 IEEE.

关键词： Distribution functions

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Metallo-supramolecular complexes enantioselectively target monkeypox virus RNA G-quadruplex and bolster immune responses against MPXV

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National Science Review 2025年第1期12卷 167-176页

作者： Jie Yang Geng Qin Baoying Huang Hualong Song Jiewei Sun Miles Postings Peter Scott Chuanqi Zhao Chunyu Wang Wenjie Tan Jinsong Ren Xiaogang Qu Laboratory of Chemical Biology and State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied Chemistry Chinese Academy of Sciences School of Applied Chemistry and Engineering University of Science and Technology of China NHC Key Laboratory of Biosafety National Institute for Viral Disease Control and Prevention Chinese Center for Disease Control and Prevention National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases (NITFID) Department of Chemistry University of Warwick School of Pharmacy Xinxiang Medical University State Key Laboratory of Supramolecular Structure and Materials Jilin University

The Mpox virus(MPXV) has emerged as a formidable orthopoxvirus, posing an immense challenge to global public health. An understanding of the regulatory mechanisms of MPXV infection, replication and immune evasion will benefit the development of novel antiviral strategies. Despite the involvement of G-quadruplexes(G4s) in modulating the infection and replication processes of multiple viruses, their roles in the MPXV life cycle remain largely unknown. Here, we found a highly conservative and stable G4 in MPXV that acts as a positive regulatory element for viral immunodominant protein ***, by screening 42 optically pure chiral metal complexes, we identified the Λ enantiomer of a pair of chiral helical compounds that can selectively target m RNA G4 and enhance expression of the 39-k Da core protein encoded by the MPXV A5L gene. Mechanistically, RNA G4-specific helicase DHX36 inhibits A5L protein expression by unwinding G4s. In contrast, MH3 Λ enhanced m RNA stability by specifically targeting G4 structures and subsequently increased protein expression. Furthermore, given the pivotal role of the 39-k Da core protein in activating immune responses and facilitating virion maturation, modulation of MPXV G4 folding by MH3 Λ exhibited inhibitory effects on MPXV replication through enhancing the immune response. Our findings underscore the critical involvement of G4 in the MPXV life cycle and offer potential avenues for developing antiviral drugs that target G4.

关键词： G-quadruplex ligand binding Mpox virus chirality supramolecular chemistry

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