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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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Modernity Problems of Sandu Shui Nationality Needlework

Modernity Problems of Sandu Shui Nationality Needlework

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2017 the 3rd International Symposium on Social Science(ISSS 2017)

作者： Wenting Liu Art College of Sichuan University Applied Nuclear Technology and Automation Engineering College of Chengdu University of Technology

ISBN: (纸本)9781510841239

By taking Shui nationality needlework as the study case,this thesis observes the modernity problems of Shui nationality needlework from the perspective of the formation reasons of needlework modernity and the modernity features of *** points out the necessity of the formation of Shui nationality needlework modernity as a result of overlapping outcomes of natural geography,female identity,policy influences and other *** the modernity features of Shui nationality needlework characteristic of new intense national and visual life paradigm.

关键词： Sandu Shui nationality folk needlework modernity

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Real-Time Monitoring of Meteorological Data at In-Situ GCW Remediation Sites

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Journal of Geoscience and Environment Protection 2024年第9期12卷 152-166页

作者： Qinghai Wu Xiaofeng Yang Jun Liu Ruiqi Wang Quanyou Fu College of Nuclear Technology and Automation Engineering Chengdu University of Technology Chengdu China

To optimize the self-organization network, self-adaptation, real-time monitoring, remote management capability, and equipment reuse level of the meteorological station supporting the portable groundwater circulation wells, and to provide real-time and effective technical services and environmental data support for groundwater remediation, a real-time monitoring system design of the meteorological station supporting the portable groundwater circulation wells based on the existing equipment is proposed. A variety of environmental element information is collected and transmitted to the embedded web server by the intelligent weather transmitter, and then processed by the algorithm and stored internally, displayed locally, and published on the web. The system monitoring algorithm and user interface are designed in the CNWSCADA development environment to realize real-time processing and analysis of environmental data and monitoring, control, management, and maintenance of the system status. The PLC-controlled photovoltaic power generating panels and lithium battery packs are in line with the concept of energy saving and emission reduction, and at the same time, as an emergency power supply to guarantee the safety of equipment and data when the utility power fails to meet the requirements. The experiment proves that the system has the characteristics of remote control, real-time interaction, simple station deployment, reliable operation, convenient maintenance, and green environment protection, which is conducive to improving the comprehensive utilization efficiency of various types of environmental information and providing reliable data support, theoretical basis and guidance suggestions for the research of groundwater remediation technology and its disciplines, and the research and development of the movable groundwater cycling well monitoring system.

关键词： Groundwater Circulation Well Weather Station Real-Time Monitoring Embedded Web Server

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Current Status of Rn-220 Chamber Carrier Aerosol Modulation Research

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Journal of Geoscience and Environment Protection 2023年第4期11卷 30-36页

作者： Yanan Liu Yu Cheng College of Nuclear Technology and Automation Engineering Chengdu University of Technology Chengdu China

Radon is the most important source of natural radiation to human beings and the second major causative agent of lung cancer other than smoking. In recent years, the hazards of human exposure to thoron (Rn-220), another isotope of radon, and its progeny have gained consensus. To accurately evaluate the dose level and hazards of Rn-220 and its progeny, a standard Rn-220 chamber with strong regulation ability for Rn-220 and its progeny needs to be established for the scale or calibration of measurement instruments. This paper describes the hazards, sources, behavioral characteristics of Rn-220 and its progeny, and some representative Rn-220 chambers established in various countries.

关键词： Thoron Rn-220 Chamber Aerosol Modulation

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Performance optimization of the elliptically vibrating screen with a hybrid MACO-GBDT algorithm

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Particuology 2021年第3期19卷 193-206页

作者： Zhiquan Chen Zhanfu Li Huihuang Xia Xin Tong College of Mechanical Engineering and Automation Huaqiao UniversityXiamen 361021China Fujian Key Laboratory of Digital Equipment Fujian University of TechnologyFuzhou 350118China Institute for Applied Materials(IAM) Karlsruhe Institute of Technology(KIT)Hermann-von Helmholtz-Platz 176344 Eggenstein-LeopoldshafenGermany

As a typical screening apparatus,the elliptically vibrating screen was extensively employed for the size classification of granular *** efforts have been paid on the improvement of sieving performance,but the optimization problem was still perplexing the researchers due to the complexity of sieving *** the present paper,the sieving process of elliptically vibrating screen was numerically simulated based on the Discrete Element Method(DEM).The production quality and the processing capacity of vibrating screen were measured by the screening efficiency and the screening time,*** sieving parameters including the length of semi-major axis,the length ratio of two semi-axes,the vibration frequency,the inclination angle,the vibration direction angle and the motion direction of screen deck were ***,the Gradient Boosting Decision Trees(GBDT)algorithm was adopted in the modelling task of screening *** trained prediction models with sufficient generalization performance were obtained,and the relative importance of six parameters for both the screening indexes was *** that,a hybrid MACO-GBDT algorithm based on the Ant Colony Optimization(ACO)was proposed for optimizing the sieving performance of vibrating *** the single objective optimization of screening efficiency and the stepwise optimization of screening results were ***,the reliability of the MACO-GBDT algorithm were examined by the numerical *** optimization strategy provided in this work would be helpful for the parameter design and the performance improvement of vibrating screens.

关键词： Discrete Element Method(DEM) Elliptically vibrating screen Sieving performance Gradient Boosting Decision Trees(GBDT) Ant Colony Optimization(ACO)algorithm

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A digital multi-channel system based on parallel full comparison baseline restoration method 4

A digital multi-channel system based on parallel full compar...

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4th International Conference on Electronic Information engineering and Computer Communication, EIECC 2024

作者： Liu, Yang Xu, Mingxing Wang, Guangxi Yang, Yufeng Chengdu University of Technology College of Nuclear Technology and Automation Engineering Cheng Du China Key Laboratory of Sichuan Province Chengdu University of Technology Cheng Du China

ISBN: (纸本)9798331534622

This paper designs a baseline estimation digital energy spectrum measurement system using a parallel full-comparison method, aimed at reducing the impact of baseline drift on the energy resolution of the digital energy spectrum measurement system. The system consists of two parts: an analog baseline adjustment circuit and a digital baseline estimation module. The digital module first performs baseline estimation, then transmits the results to the frontend circuit to adjust the baseline, thereby correcting drift caused by circuit noise and signal pulse stacking. The system is mainly composed of a DAC baseline adjustment circuit, an ADC sampling circuit, and an FPGA-based digital multi-channel analysis system, in which a parallel full-comparison mean baseline estimation method is deployed to calculate the baseline adjustment amount. To verify the reliability of the system, NaI detectors were used in this study, and the energy resolution and response of the system were tested using dual-source137Cs and60Co. The experimental results show that the linear response fitting of the digital multi-channel energy spectrum measurement system exceeds 99.99%. Under high counting rates, the energy resolution without baseline recovery was 8.83% (@0.662 keV), while the energy resolution with the parallel full-comparison baseline recovery method was 7.57% (@0.662 keV), improving by 0.92%. In conclusion, compared to the system without baseline recovery, the parallel full-comparison baseline recovery method effectively alleviates the baseline drift issue of the NaI detector under high counting rates, thereby improving the energy resolution of the system. © 2024 IEEE.

关键词： Velocity measurement

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Research on Precision Positioning Control System of Punching Machine Feeding Device 6

Research on Precision Positioning Control System of Punching...

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6th IEEE Information technology and Mechatronics engineering Conference, ITOEC 2022

作者： Pang, Dangfeng Cui, Shigang Zhang, Yongli College of Automation and Electrical Engineering Tianjin University of Technology and Education Tianjin China College of Mechanical Engineering Tianjin Sino-German University of Applied Sciences Tianjin China

ISBN: (纸本)9781665431859

In order to improve the working efficiency and safety of the stainless steel spoon punching, after analyzing the punching and cutting process and the production requirements of enterprise, a precision positioning control system for the automatic feeding device based on integral separation PID algorithm is designed. The system uses Siemens S7-200SMART PLC as the master station. Design parameters and display data through the touch screen, and use DC motors and pneumatic circuits to achieve coordinated control of the punch and feeder. Through actual production verification, the system has high relocation accuracy and reliable operation, the efficiency increased by 40%. At the same time, it reduces safety hazards and labor costs, provides a reference and theoretical basis for the automation upgrade and transformation of stamping feeding. © 2022 IEEE.

关键词： Efficiency

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Research on brakingacceleration identification based on EEG 3

Research on brakingacceleration identification based on EEG

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3rd IEEE International Conference on Communications, Information System and Computer engineering, CISCE 2021

作者： Zhang, Tao Wang, Hong College of Mechanical Engineering and Automation Northeastern University Shenyang Liaoning110819 China College of Applied Technology Shenyang University Shenyang Liaoning110044 China

ISBN: (纸本)9780738112152

The driver needs to brake and accelerate on the right foot in the process of driving, and occasionally there will be misoperation, which will bring potential accidents, so the study of the driver's awareness of right foot movement is of great significance. In this paper, we study the car driving behavior identification of consciousness, as a brake or accelerate driving action consciousness as object recognition, EEG (Electroencephalogram, EEG) signals are collected in virtual driving. based on PDC (Partial Directed Coherence, PDC) build Functional Brain networks (Functional Brain Network, FBN), identify in two kinds of action under the consciousness of different Functional Brain networks. By using the graph theory method: Degree (D), Clustering Coefficient (C) and Global Efficiency (E) were input into Cubic SVM as features to classify and recognize different action consciousness. The results show that the method based on PDC can realize the classification and recognition of driving action consciousness, and its classification accuracy reaches 91.9%. © 2021 IEEE.

关键词： Electroencephalography

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X-ray focusing using an x-ray lens composed of multi-square polycapillary slices

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Chinese Physics B 2022年第2期31卷 278-284页

作者： Kai Pan Tian-Cheng Yi Zhao Wang Mo Zhou Yu-De Li Zhi-Guo Liu Xiao-Yan Lin Tian-Xi Sun College of Nuclear Science and Technology Beijing Normal UniversityBeijing 100875China Beijing Key Laboratory of Applied Optics Beijing 100875China Key Laboratory of Beam Technology Ministry of EducationBeijing 100875China Spallation Neutron Source Science Center Dongguan 523803China Institute of Applied Electronics China Academy of Engineering PhysicsMianyang 621900China

A new type of x-ray lens composed of multi-square polycapillary slices(ASPXRL)used in focusing parallel x-ray beam was presented in this *** with conventional x-ray polycapillary lens,ASPXRL can provide smaller and brighter *** effects of the manufacturing imperfections on focusing quality of ASPXRL were evaluated with the values of transmission efficiency and *** is suggested that ASPXRL has application prospects as a condenser lens for x-ray microscopy and flux collectors for x-ray analytical instruments.

关键词： x-ray optics polycapillary x-ray lens with square channels

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Research on gamma spectrum semi-quantitative analysis based on convolutional neural network

Research on gamma spectrum semi-quantitative analysis based ...

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作者： Fei Li Jing Wang Liangquan Ge Fangyan Hu Feng Cheng Kun Sun Applied Nuclear Technology in Geosciences Key Laboratory of Sichuan Province College of Nuclear Technology and Automation Engineering Chengdu University of Technology

In the field of practical application of nuclear technology,one of the vital steps is the interpretation of gamma energy spectrum,which can obtain the type and content of radionuclides and achieve further *** neural network is one the most basic and effective algorithm structures in deep learning because it has local receptive field,weight sharing and down sampling structure,it solves the problem of parameter expansion caused by full connection and reduces the number of *** can be used to study the resolution of gamma-ray spectra of convolutional neural *** paper introduces the spectral forming principle of gamma spectra and the convolutional neural network,and USES the convolutional neural network to study the spectral decomposition of gamma *** this paper,a multi-layer convolution neural network model is built based on C# *** convolution neural network is applied to gamma-ray spectrum decomposition,and the U,Th,K nuclides are identified and semi-quantitatively *** identifying and analysing different energy spectrum data,it is shown that the modified model structure can be applied to the spectral decomposition of gamma spectrum.

关键词： Research on gamma spectrum semi-quantitative analysis based on convolutional neural network

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