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Applicability of denoising-based artificial intelligence to forecast the environmental externalities

Geoscience Frontiers 2024年第3期15卷 469-483页

作者： Dongsheng Cai Ghazala Aziz Suleman Sarwar Majid Ibrahim Alsaggaf Avik Sinha The College of Nuclear Technology and Automation Engineering Chengdu University of TechnologySichuan Province 610059China Department of Business Administration College of Administrative and Financial SciencesSaudi Electronic UniversityJeddahSaudi Arabia Department of Finance and Economics College of BusinessUniversity of JeddahJeddahSaudi Arabia Management Development Institute Gurgaon India

The current study attempts to compare the hybrid artificial intelligence models to forecast the environmental externalities in Saudi *** have used the denoising based artificial intelligence models to construct hybrid *** comparing the denoising techniques,the CSD-based denoising has ***,we have used the CSD-based hybrid ***-ANN and CSD-RNN are used for denoising-based artificial intelligence models,whereas CSD-ARIMA is used for denoising-based traditional *** these models are used to check and compare their performance in terms of level and direction of prediction for PM_(10).The results show that the CSD-based ANN model has a higher predictability for PM_(10) levels in Saudi Arabia due to low error values and higher Dstat *** comparing original and forecasted data,the superiority of CSD-ANN is evident in predicting the PM_(10) in Saudi ***,this hybrid model can predict the environmental externalities for non-linear and highly noised ***,the findings can be useful in achieving the sustainable development goal.

关键词： Hybrid artificial intelligence Forecasting Saudi Arabia Environment PM_(10)

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Thin-film approximate point scattered function and its application to neutron radiography

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nuclear Science and Techniques 2022年第9期33卷 1-9页

作者： Jun Qin Jia-Yu Ni Lin-Feng Ye De-Hong Gao Wei-Jun Jiang Department of Nuclear Engineering and New Energy Technology The College of Engineering and Technology of Chengdu University of TechnologyLeshan 614000SichuanChina Society for Theoretical and Computational Physics The College of Engineering and Technology of Chengdu University of TechnologyLeshan 614000SichuanChina

A simpler and improved utility approximate point scattered function for thin-film converters currently used in neutron photographic devices is proposed as a correction method to produce clearer,more realistic *** validity of the model was demonstrated through a simulation *** on the results,an error analysis was carried out,certain corrections were made to the original model,and the final model achieved a very low relative error in the simulation *** model can also be optimized for quantitative neutron photographic analysis using iterative algorithms to obtain realistic neutron photographic images more *** the end of the article,the model is extended to consider the case of energy spectrum hardening by introducing a temperature correction parameter.

关键词： Neutron radiography Point scattered function Image processing

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Multi-Dimensional Hybrid Quantitative Analysis of Teaching Evaluation by Big Data technology: A Case Study on Chinese Universities 4

Multi-Dimensional Hybrid Quantitative Analysis of Teaching E...

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4th IEEE International Conference on Electronic Communications, Internet of Things and Big Data, ICEIB 2024

作者： Long, Laiying Wen, Yingzi Li, Fei Zhang, Muhao College of Nuclear Technology and Automation Engineering Chengdu University of Technology Chengdu610000 China Universitat Politècnica de Catalunya Department of Physics Barcelona08028 Spain

ISBN: (纸本)9798350360721

Students' feedback is adopted as a common method of evaluating teaching quality, which is crucial in monitoring teaching quality in colleges and universities. However, various factors such as area, gender, and age of the students can influence the model, content, and subjective bias of teaching quality evaluation. Therefore, we conducted a questionnaire survey for students at 90 universities in China and analyzed the data using Tableau and SPSS. The current teaching evaluation system lacks model diversity, discipline specificity, and objective standardization. Thus, improvement considering the relationship between students' cognition, attitude, and participation is proposed to provide a significant reference on the higher education reform system based on the result. © 2024 IEEE.

关键词： Students

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Analysis on Insulation Fault of Capacitor in 10kV Reactive Power Compensation Device 2

Analysis on Insulation Fault of Capacitor in 10kV Reactive P...

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2nd Asia Power and Electrical technology Conference, APET 2023

作者： Zeng, Chaoxu Yang, Bowen Chen, Tianxiang Yang, Longshan Wang, Meng Chen, Long Yang, Sen College of Nuclear Technology and Automation Engineering Chengdu University of Technology Chengdu China Jianyang Power Supply Company State Grid Chengdu China

ISBN: (纸本)9798350359428

Capacitor reactive power compensation plays an important role in improving system voltage stability, reducing transmission line losses and substation losses. In this paper, for the 10kV system of a 220kV substation, the capacitor external fuse protection all melted and the body burned accident, based on the faulty capacitor deconstruction, analyzed the main reasons for the capacitor insulation damage and the reasons for the expansion of the fault, calculation and analysis of the capacitor imbalance protection found that the setting value is unreasonable. Through the simulation software PSCAD/EMTDC to reproduce the fault process, the cause of the fault is verified, and finally to avoid the recurrence of the fault puts forward the corresponding processing recommendations. © 2023 IEEE.

关键词： Electric power transmission

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Technique for Anomaly Information Reconstruction in Airborne Radiation Data Based on Dictionary Learning Algorithm

Technique for Anomaly Information Reconstruction in Airborne...

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2023 International Conference on Computer Applications technology, CCAT 2023

作者： Xiong, Chao Wang, Xin Qiao, Xin Zhou, Zhi Wu, Hexi Ministry of Education Engineering Research Center of Nuclear Technology Application Nanchang China East China University of Technology School of Nuclear Science and Engineering Nanchang China Chengdu University of Technology The College of Nuclear Technology and Automation Engineering Chengdu China

ISBN: (纸本)9798350301540

This paper introduced the K-SVD algorithm of machine learning to Decompose and Reconstruct the airborne radiation data. According to the sparse representation method, the inaccuracy of gridding interpolation due to the mismatch of data dimension was reduced and then a self-adaptive dictionary was constructed via training the original data. After reconstruction by dictionary learning, the increase in terms of two indicators peak signal-to-noise ratio (PSNR) and structural similarity index measure (SSIM) as well as the noise signal extracted which obeyed a stripe-like distribution along the sideline testified that the KSVD encoding learning processing technique had effective results in reconstructing and de-noising airborne radiation data. © 2023 IEEE.

关键词： Signal to noise ratio

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Dual-Event-Triggered Intelligence Security Control for Multiagent Systems Against DoS Attacks With Applications in Mobile Robot Systems

IEEE Transactions on Artificial Intelligence

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IEEE Transactions on Artificial Intelligence 2024年第2期5卷 916-924页

作者： Liang, Hongjing Chang, Zhenyu Pan, Yingnan School of Automation Engineering University of Electronic Science and Technology of China Chengdu611731 China College of Control Science and Engineering Bohai University Jinzhou121013 China

The intelligence security control problem of multiagent systems in the presence of actuator faults is investigated against denial-of-service (DoS) attacks. Noticing that the DoS attacks usually make the actuator signal not available for distributed control protocols, a novel intelligence dual-event-triggered control strategy is developed to eliminate the impact of DoS attacks. This control strategy includes two related event triggers, respectively, set on different channels, in which the second event-triggered condition is related to the triggering sequence of the previous event. Through the coordination between two nested event triggers set on different channels, the controller is avoided by being affected by wrong signals caused by DoS attacks. The developed distributed control protocol can not only guarantee the realization of the tracking control task, but also ensure that no 'Zeno behavior' occurs in the process of the event triggering. Moreover, the obtained results are applied to the mobile robot systems. Finally, a numerical simulation example and a mobile robot system application are given to verify the feasibility and effectiveness of the proposed control strategy. © 2023 IEEE.

关键词： Mobile robots

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STARTUP ANALYSES OF A HELIUM-XENON GAS-COOLED REACTOR 30

STARTUP ANALYSES OF A HELIUM-XENON GAS-COOLED REACTOR

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30th International Conference on nuclear engineering, ICONE 2023

作者： Ma, Yugao Bao, Hui Lu, Jiahao Ding, Shuhua Zhang, Meng Yang, Xiaolong Deng, Jian Zhang, Muhao Science and Technology on Reactor System Design Technology Laboratory Nuclear Power Institute of China Chengdu610213 China College of Nuclear Technology and Automation Engineering Chengdu University of Technology Chengdu610059 China

ISBN: (纸本)9784888982566

The Helium-Xenon (He-Xe) gas-cooled reactor uses a He-Xe gas mixture to remove the heat from the reactor core. It has the characteristics of a long life-cycle, simple operation, and high power-mass ratio, which has an excellent application prospect in the field of Space Reactors Power Systems. The high operation temperature distinguishes the He-Xe gas-cooled reactor from the traditional reactor in reactivity feedback characteristics. Except for the Doppler effect of the fuel and monolith, the thermal expansion also introduces reactivity feedback during reactor operation. In this work, reactivity feedback characteristics, steady-state characteristics, and transient characteristics of a hundred-kilowatt-level He-Xe gas-cooled reactor (Submersion-Subcritical Safe Space reactor, S4) were analyzed. The Doppler feedback characteristics and thermal expansion feedback coefficients of fuel, matrix, and reflector from the cold to the hot state of the S4 reactor core were calculated based on the reactor Monte Carlo code (RMC). The results show that the S4 reactor core is mainly affected by the fuel Doppler effect and the matrix thermal expansion effect. Furthermore, the temperature distributions of fuel and He-Xe gas of the S4 reactor were calculated using the He-Xe reactor transient analysis code (HXRTRAN). The transient characteristics of the S4 reactor core when different reactivity was introduced were analyzed. This study may provide a reference for the operation state of the He-Xe gas-cooled reactor. © 2023 by JSME.

关键词： Helium

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Radiation Damage Simulation Using Molecular Dynamics in Ni-Based Alloy 5

Radiation Damage Simulation Using Molecular Dynamics in Ni-B...

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2023 5th International Conference on Modeling, Simulation, Optimization and Algorithm, ICMSOA 2023

作者： Shen, Yanxin Yang, Yue Ou, Xuelian Wang, Peng You, Zhenjiang Tian, Xiaofeng The College of Nuclear Technology and Automation Engineering Chengdu University of Technology Sichuan Sichuan Chengdu China Applied Nuclear Technology in Geosciences Key Laboratory of Sichuan Province Chengdu University of Technology Sichuan Chengdu China Center for Sustainable Energy and Resources Edith Cowan University JoondalupWA6027 Australia

In the present study, we investigated the irradiation-induced induction in Ni80Cr20, Ni80Fe20, Ni50Fe50, Ni40Fe40Cr20 by molecular dynamics (MD) simulation. A previously published modified potential is used to provide a detailed account of the process involved in the production and evolution of defects. Ni50Fe50 and Ni40Fe40Cr20 alloys exhibit comparable damage level and better radiation response compared to Ni80Cr20 and Ni80Fe20. The inhibition effect of interstitial clusters increases with the complexity of alloying elements. The alloying of Cr has resulted in Ni80Fe20 and Ni50Fe50 tend to form 1/3 dislocation loops while at the same time making Ni40Fe40Cr20 and Ni80Cr20 more susceptible to stacking fault tetrahedra formation than the remaining two alloys. © Published under licence by IOP Publishing Ltd.

关键词： Nickel alloys

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Presentation and Performance Analysis of a Direct-Drive Traction System for Rail Trains Incorporating a Disk PM Motor 6

Presentation and Performance Analysis of a Direct-Drive Trac...

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6th IEEE Conference on Energy Internet and Energy System Integration, EI2 2022

作者： Bao, Ze Jing, Hailian Zhang, Yumin Hou, Jinsong Zhou, Heng Zhang, Yefei Chengdu University of Technology College of Nuclear Technology and Automation Engineering Chengdu China

ISBN: (纸本)9798350347159

This paper presents a novel direct-drive electric traction system that incorporates a disk permanent magnet (PM) motor, which shows practical potential to urban rail trains. The disk PM motor can be directly mounted on the train wheel, which realizes the direct contact of power and load. First, conceptual structure of the direct-drive system is described. Then, the motor structure and its specifications are presented from the viewpoint of replacing the asynchronous motor of the existing ALSTOM 04A02 urban rail system. Machine parameters are calculated and 3-D finite element (3-D FEM) simulation is carried out to analyze magnetic field distribution. Design results demonstrate that the disk PM motor has distinguished advantages in power density and efficiency over the asynchronous motor in use, which would be more suitable for heavy-load rail trains. At last, the influence of harmonic current from the inverter on the harmonic torque of the disk PM motor is studied, and results demonstrate that the 6th harmonic torque is the main factor affecting the torque ripple and could be suppressed by further optimizing the machine parameters. This work can provide some reference for improving the train traction system, and has reference values to other electric traction systems. © 2022 IEEE.

关键词： Electric traction

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Optimization and Simulation of Production Line Layout Based on Plant Simulation 5

Optimization and Simulation of Production Line Layout Based ...

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5th IEEE International Conference on automation, Electronics and Electrical engineering, AUTEEE 2022

作者： Jiang, Shiming Li, Linlin Deng, Kai College of Nuclear Technology and Automation Engineering Chengdu University of Technology Chengdu China

ISBN: (纸本)9781665471978

Manufacturing industry plays an important role in the country, and the optimization of factory facility layout design in basic manufacturing industry will affect the problem that needs to be solved urgently. The problem of facility layout optimization is not only an engineering research problem, but also more complex in practice, with high practicality. However, its interdisciplinary characteristics are also very obvious. Based on the principle of discrete system simulation, the initial model of the camshaft production line is established on the basis of determining the camshaft production process and the specific parameters of each machine tool. Secondly, according to the established model, discuss the working efficiency of each equipment, the working condition of the station, the failure efficiency of the production line and the bottleneck process, etc., run the model and analyze the results. According to the analysis of the simulation results of the model, it is gradually improved. Finally, the mass production of camshaft production line is discussed, and the initial population, individual fitness function, genetic parameters, etc. are analyzed. On this basis, genetic algorithm is used to optimize the scheduling problem, and the results are compared with the previous ones to verify whether the results are effective. © 2022 IEEE.

关键词： Multiobjective optimization

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