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8th International Symposium on Computer science and Intelligent control, ISCSIC 2024

作者： Yin, Shasha Ge, Yueran Tian, Lingling Hebei University of Technology School of Artificial Intelligence and Data Science Tianjin China Hebei University of Technology Control Engineering Technology Innovation Center of Hebei Province Tianjin China

ISBN: (纸本)9798350380286

Unmanned Aerial Vehicle (UAV) image object detection has been widely applied in security and disaster relief and other aspects. For the sake of solving the problem of many small objects, this paper proposes a Multifaceted feature information extraction and fusion algorithm (MFIEF). Firstly, the multi-information feature extraction convolution module (MFECM) is adopted, which retains more small object feature information and surrounding spatial information. Secondly, the optimized FPN structure (OFPN) is used, the fusion of horizontal and vertical information avoids the loss of information, and the addition of lightweight attention convolution module (LACM) reduces the number of parameters while improving attention to key object information. The experimental results on the VisDrone datasets demonstrate that the MFIEF algorithm achieves a obvious improvement in performance compared to the benchmark algorithm. Specifically, the mAP@0.5 value of MFIEF is 9.7 percentage points higher, while the mAP@0.5:0.95 value of MFIEF is 6.7 percentage points higher than the benchmark algorithm. These findings highlight the superior performance of MFIEF in object detection tasks on the VisDrone datasets. © 2024 IEEE.

关键词： Unmanned aerial vehicles (UAV)

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Remarkable improved strength and ductility in brittle eutectic high-entropy alloy via a novel spheroidization and recrystallization strategy

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Journal of Materials science & Technology 2024年第20期187卷 177-187页

作者： Lingkun Zhang Rui Huang Fengrui Zhou Abdukadir Amar Hongwei Yan Yongan Zhang Yiping Lu Key Laboratory of Solidification Control and Digital Preparation Technology(Liaoning Province) School of Materials Science and EngineeringDalian University of TechnologyDalian 116024China State Key Laboratory of Nonferrous Metals and Processes GRINM Group Co.LTDBeijing 100088China General Research Institute for Nonferrous Metals Beijing 100088China

Eutectic high-entropy alloys(EHEAs),as a classification of high-entropy alloys(HEAs),have received worldwide interest due to superior fluidity and attractive ***,other than the FCC+B2 EHEA system,most other reported EHEA systems show inherent brittleness during tensile loading at room temperature,which limits their advanced engineering *** this work,a novel spheroidization+recrystallization(SR)strategy for synergistic strengthening and plasticizing of the brit-tle CoCrFeNi_(2)(V_(6)B_(3)Si)_(0.149)was *** superior combination of strength and ductility was achieved by tailoring spherical M3 B2+recrystallized FCC duplex *** on this strategy,the yield strength and elongation were improved from 565±15 MPa and 2.3%±0.3%to 841±24-1278±20 MPa and 14.7%±0.5%-22.5%±1.2%,with an increase of 48%-126%and 539%-878%,*** synergistic increment in the strength and ductility of SR-FCC+M_(3)B_(2)EHEAs exceeds all reported fur-ther strengthened FCC+B2 ***,such simple thermo-mechanical processing is suitable for large-scale industrial *** high strength results from the back stress provided by the dual heterogeneity of FCC grain sizes and soft FCC/hard M_(3)B_(2).The good ductility is attributed to the dislo-cation movement path released by spheroidized M3 B2 and a more uniform stress distribution caused by the recrystallized *** work provides a new strategy for synergistic strengthening and plasticizing of the brittle EHEAs to meet industrial reliability requirements.

关键词： Eutectic high-entropy alloys Spheroidization Recrystallization Strength Ductility

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Visual Reinforcement Learning Based on Multi-View Optimization Aggregation

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IEEE Transactions on Cognitive and Developmental Systems 2025年

作者： Wang, Xuesong Lu, Ruyi Zhang, Hengrui Cheng, Yuhu Ministry of Education Engineering Research Center of Intelligent Control for Underground Space Xuzhou221116 China

Although recent research has made some progress in deep reinforcement learning based on raw pixels, the low sample efficiency remains a key challenge in this field. Existing solutions often focus solely on extracting more effective state representations in the representation learning stage and overlook how to better utilize these state representations in the policy learning stage. To address this, a simple and sample-efficient visual reinforcement learning method based on multi-view optimization aggregation (MVOA-VRL) is proposed for pixel-based off-policy reinforcement learning frameworks. This method enables the agent to concurrently focus on learning and utilizing state representations. Specifically, MVOA-VRL acquires multiple views of samples through random crop and adaptive intensity adjustment. It then introduces optimization aggregation methods separately in the representation learning and reinforcement learning modules to aggregate the similarities, actions, and state values of multiple samples from different views. MVOA-VRL aims to promote the agent's learning of effective representations and stable policies. Experimental results on continuous control tasks in the DMcontrol environment show that, compared with state-of-the-art methods, MVOA-VRL achieves higher scores and significantly improves sample efficiency. © 2016 IEEE.

关键词： Adversarial machine learning

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Capacity Configuration Model for Power Dispatch and Clean Energy Peak Shaving with Large-Scale Liquid Flow Batteries 13

Capacity Configuration Model for Power Dispatch and Clean En...

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13th IEEE Data Driven control and Learning Systems Conference, DDCLS 2024

作者： Li, Dianyang Cui, Dai Xiao, Nan Li, Jiaze Jiang, Huijie Yang, Feiran State Grid Liaoning Electric Power Co. Ltd Power Dispatching Control Center Shenyang China College of Information Science and Engineering Northeastern University Shenyang China

ISBN: (纸本)9798350361674

The rapid development of renewable energy has brought us closer to achieving carbon peak and carbon neutrality goals, but it has also exacerbated the challenge of load fluctuation in power grids. To enhance grid stability and security, it is essential to implement effective peak shaving measures. Relying solely on various types of power generation to complement each other has limitations. In this paper, we propose a model and method for configuring the capacity requirements of large-scale liquid flow batteries involved in grid peak shaving, within the context of increasing demand for renewable energy integration. Our model utilizes an optimization approach with the objective of minimizing the operational costs of the peak shaving system. The model not only considers the technical constraint index of the system, but also innovatively introduces the reliability constraint of the probability of insufficient peak regulation and the reliability constraint of the mean value of insufficient peak regulation, and forms the optimal configuration model of peak regulation capacity of large-capacity flow battery assisted power system. The model takes the 24-hour load time series and wind power time series as inputs, employs the YALMIP toolbox, and utilizes the CPLEX solver to optimize the capacity and power requirements for large-scale liquid flow batteries assisting in renewable energy dispatch. A simulation analysis is conducted using a case study with a 24-hour load time series and wind power time series as inputs to evaluate the proposed model. © 2024 IEEE.

关键词： Clean energy

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Inactivation of Escherichia coli in Small-Diameter Tubes by Remote Plasmas

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Plasma Medicine 2022年第3期12卷 59-68页

作者： Asada, R. Fujiyama, T. Bounyang, O. Sakamoto, J.J. Matsuura, H. Tsuchido, T. Furuta, M. Graduate School of Engineering Osaka Metropolitan University Japan Research Center of Microorganisms Control Osaka Metropolitan University Japan Graduate School of Engineering Osaka Prefecture University Japan

Heat and chemical treatments are commonly employed as decontamination methods in the medical industry. However, there are limitations to these methods, and new decontamination techniques are in demand. Among the state-of-the-art techniques, atmospheric-pressure plasma treatment is considered the most promising approach. Reactive radicals and ultraviolet light, generated in the plasma, are used to kill bacteria located away from the plasma source. In this study, we examined the inactivation of Escherichia coli samples, placed inside a long flex-ible tube of a small diameter, with plasma jet injection. Depending on the sample position, the inactivation effects of the radicals and ultraviolet light change significantly. Our experimental results show that long-life radicals are effective in plasma treatment. Moreover, the effectiveness of radicals in plasma decontamination was established using mutant gene strains without resistance to specific reactive radicals. © 2022 by Begell House, Inc.

关键词： Escherichia coli

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Knockdown resistance associated organochlorine resistance in mosquito-borne diseases(Anopheles culicifacies):A systematic review

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Asian Pacific Journal of Tropical Medicine 2025年第1期18卷 3-9页

作者： Ebrahim Abbasi Salman Daliri Shokrollah Mohseni Aman Allah Zamani Noorbakhsh Alivand Mohammad Djaefar Moemenbellah-Fard Research Center for Health Sciences Institute of HealthShiraz University of Medical SciencesShirazIran Department of Medical Entomology and Vector Control School of HealthShiraz University of Medical SciencesShirazIran Research Clinical Research Development Unit Imam Hossein HospitalShahroud University of Medical SciencesShahroudIran Social Determinants in Health Promotion Research Center Hormozgan Health InstituteHormozgan University of Medical SciencesBandar AbbasIran Department of Nutrition School of HealthShiraz University of Medical ScienceShirazIran Department of Biology and Control of Disease Vectors School of HealthShiraz University of Medical SciencesShirazIran

Objective:To investigate the prevalence,mechanisms,and trends of knockdown resistance(kdr)in Anopheles(An.)culicifacies and its impact on the efficacy of organochlorine and other ***:A systematic review was conducted based on PRISMA guidelines,extracting data from ***,Embase,ProQuest,PubMed,Scopus,and Web of science without a time limit until the end of *** meeting the inclusion criteria were assessed using the STROBE *** on kdr mutations,insecticide resistance,and effectiveness were analyzed across eight selected studies from various ***:The review revealed widespread kdr-mediated resistance in ***,primarily against dichloro-diphenyl-trichloroethane(DDT),persisting even decades after discontinued *** kdr mutations,including L1014F and L1014S,were *** to deltamethrin was less stable,with increased sensitivity observed after short-term *** findings underscore the vector's sustained resistance to organochlorine insecticides and relative sensitivity to ***:Stable kdr resistance in *** to organochlorine insecticides highlights the need for periodic susceptibility assessments and strategic rotation or combination of insecticides to combat malaria effectively and prevent the development of resistance.

关键词： Knockdown resistance(kdr) Organochlorine Mosquito-borne diseases Anopheles culicifacies Systematic review

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A Novel Dynamic Obstacle Avoidance Strategy Based on Predictive Artificial Potential Field Algorithm 43

A Novel Dynamic Obstacle Avoidance Strategy Based on Predict...

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43rd Chinese control Conference, CCC 2024

作者： Chen, Ruo Zhu, Yang Cao, Bin Su, Hongye Zhejiang University College of Control Science and Engineering Hangzhou310027 China Zhejiang University Ningbo Innovation Center Ningbo315100 China Beijing University of Posts and Telecommunications China

ISBN: (纸本)9789887581581

Autonomous vehicles are playing an increasingly important role in production and life, but for some high-speed, malicious attempts to move obstacles, their safety performance can not meet the needs. Based on the artificial potential field (APF) method, an improved predictive artificial potential field (PAPF) method is proposed to avoid collision by predicting the collision point. Based on the intention of the obstacle to collide with the car, PAPF predicts the collision point and speed, and obtains the position of the virtual obstacle and its repulsive force. The virtual obstacle is the collision point predicted by the algorithm. At the same time, the attractive field is improved to prevent the car from falling into the local minimum point, and the effect of the attractive field is reduced to prevent the car from interfering with the obstacle avoidance behavior when the threat is too large. Simulation results show that PAPF method is feasible and has better security performance than traditional methods. © 2024 Technical Committee on control Theory, Chinese Association of Automation.

关键词： Autonomous vehicles

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Characterization of laser power on additive manufacturing of heterostructure parts 4

Characterization of laser power on additive manufacturing of...

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4th International Conference on Defence Technology, ICDT 2024

作者： Li, Shiyi Feng, Hengzhen Lv, Sining Kan, Wenxing Science and Technology on Electromechanical Dynamic Control Laboratory School of Mechatronical Engineering Beijing Institute of Technology Beijing China Chongqing Innovation Center Beijing Institute of Technology Chongqing China

In order to meet the demand for low-cost and rapid prototyping of micro-small parts for highly dynamic microsystems, metal additive manufacturing technology has become one of the important means of manufacturing heterogeneous parts. In this paper, the residual stress and deformation generated by the rapid prototyping process of micro-small and complex parts under different laser frequencies are firstly simulated and analyzed, and then in order to check the resistance of the parts to high overload, the densities and hardnesses of the printed parts are experimentally tested. The results show that, on the basis of ensuring that the powder can be fully melted, the lower laser power, the smaller residual stress of the micro-small complex parts, the smaller deformation of the parts caused. The physical energy density also shows a certain correlation to the density and hardness of the specimen, the higher physical energy density, the higher density and hardness of the specimen. © 2024 Institute of Physics Publishing. All rights reserved.

关键词： Brinell Hardness

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Signal control at urban arterial intersections based on genetic algorithm 4

Signal control at urban arterial intersections based on gene...

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4th International Conference on Internet of Things and Smart City, IoTSC 2024

作者： Zhang, Yufeng Wang, Yanyang Wu, Changliang Li, Lei Vehicle Measurement Control and Safety Key Laboratory of Sichuan Province Xihua University Sichuan Chengdu610039 China Provincial Engineering Research Center for New Energy Vehicle Intelligent Control and Simulation Test Technology of Sichuan Xihua University Sichuan Chengdu610039 China

ISBN: (纸本)9781510681767

In urban arterial intersections, unreasonable signal coordination can lead to a decrease in the efficiency of arterial traffic flow and an increase in vehicle start-stop frequencies. Phase difference is a crucial parameter for arterial signal coordination, as the phase difference between intersections affects the delay experienced by traffic flow. This paper focuses on the phase difference of consecutive intersections and proposes an optimization algorithm for arterial phase difference. It introduces a utility function based on the correlation analysis of multiple phase differences, utilizes neural networks to describe the relationship between phase difference and arterial delay, and employs genetic algorithms to find the optimal solution for the model. Simulation results demonstrate that the proposed arterial phase difference optimization algorithm outperforms traditional uncontrolled and induction-controlled methods, yielding superior signal control effectiveness. © 2024 SPIE.

关键词： Genetic algorithms

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A critical review of on-site inorganic arsenic screening methods

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Journal of Environmental sciences 2023年第3期125卷 453-469页

作者： Yi He Jingyu Liu Yanhua Duan Xiaofei Yuan Lulu Ma Ratan Dhar Yan Zheng Department of Sciences John Jay College and the Graduate CenterThe City University of New YorkNY 10019USA State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control School of Environmental Science and EngineeringSouthern University of Science and TechnologyShenzhen 518055China Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control School of Environmental Science and EngineeringSouthern University of Science and TechnologyShenzhen 518055China Queensland Alliance for Environmental Health Sciences(QAEHS) The University of QueenslandQLD 4102Australia Department of Earth and Physical Sciences York CollegeThe City University of New YorkNY 11451USA

Approximately 94 to 220 million people worldwide are at risk of drinking well water containing arsenic > 10 μg/L, the WHO guideline value. To identify non-compliant domestic wells, assess health risks and reduce exposure, accurate and rapid on-site inorganic arsenic screening methods are desirable because all domestic wells worldwide need to be ***, the principles, advantages and limitations of commonly used colorimetry, electrochemistry, and biosensing methods are critically reviewed, with the performance compared with laboratory-based benchmark methods. Most commercial kits are based on the classic Gutzeit reaction. Despite being semi-quantitative, the more recent and more expensive products display improved and acceptable accuracy and shorter testing time (~10 min). Carried out by trained professionals, electrochemical methods are also feasible for on-site analysis, although miniaturization is desirable yet challenging. Biosensing using whole bacterial cells or bio-engineered materials such as aptamers is promising, if incorporated with function specific nanomaterials and biomaterials. Since arsenic is frequently found as arsenite in reducing groundwater and subject to oxidation during sampling, transportation and storage, on-site separation and sample preservation are feasible but the specific methods should be chosen based on sample matrix and tested before use. To eliminate arsenic exposure among hundreds of millions of mostly rural residents worldwide, we call for concerted efforts in research community and regulatory authority to develop accurate, rapid, and affordable tests for on-site screening and monitoring of arsenic in drinking water. Access to affordable testing will benefit people who are socioeconomically disadvantaged.

关键词： Inorganic arsenic On-site analysis Drinking water Groundwater Field test

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