Journals >Experiment Science and Technology
Contents
2025
Volume: 23 Issue 3
26 Article(s)
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Experimental Design and Analysis of Railway Traffic Dispatcher Working State Detection
Guangyuan ZHANG, Fan ZHANG, and Bolin ZHU
High-speed railway dispatcher plays an important role in ensuring railway traffic safety. Taking the working state of dispatchers in different emotions as the research content, an experimental mode is designed to collect the physiological data of high-speed railway dispatchers performing dispatching tasks under differeHigh-speed railway dispatcher plays an important role in ensuring railway traffic safety. Taking the working state of dispatchers in different emotions as the research content, an experimental mode is designed to collect the physiological data of high-speed railway dispatchers performing dispatching tasks under different emotional states. The emotion-induction experiment induces the schedulers to enter four working states respectively. Then eye movement data are collected and the K-nearest neighbor classification model and the classification and regression tree decision tree classification model are established for state identification. The identification accuracy of the former is higher, reaching more than 90%. The CNN-GRU fusion model is built to improve the prediction effect of fatigue degree..
Experiment Science and Technology
- Publication Date: May. 28, 2025
- Vol. 23, Issue 3, 84 (2025)
Study on the Determination Method of Total Amine Value of Amine Group Polyether for Drilling Fluid
Shifa MAO, Xiaoyan LIU, Wentang LIU, and Wenying MA
Amine polyether for construction of high performance drilling fluid is a polyether terminated by a primary or secondary amine group. The amine group is usually a primary amine group, secondary amine group or tertiary amine group containing active hydrogen. As a highly effective inhibitor, amine polyether has been used Amine polyether for construction of high performance drilling fluid is a polyether terminated by a primary or secondary amine group. The amine group is usually a primary amine group, secondary amine group or tertiary amine group containing active hydrogen. As a highly effective inhibitor, amine polyether has been used more and more in drilling fluids. However, there are few researches on its physicochemical properties, especially the determination of amine group content which plays a key role in inhibition. In this paper, a determination method for the total amine value of amine polyether used in drilling fluid is established through condition optimization, and the total amine value of amine polyether with different molecular weights and different functional degrees is determined, with the relative average deviation ≤ 3%. The establishment of this method has important guiding significance for the quality control and field applications of amine polyether..
Experiment Science and Technology
- Publication Date: May. 28, 2025
- Vol. 23, Issue 3, 94 (2025)
Experimental Teaching Research on Measuring the Half-Life of Radionuclides by the Thermal Neutron Activation Method
Xue QIN, Xiulian CHEN, and Jun LIU
Half-life is one of the important characteristic quantities of radionuclides. In view of the current deficiencies in the experimental teaching of half-life measurement for nuclear majors in domestic universities, a teaching experiment for measuring the half-life of radionuclides through thermal neutron activation methoHalf-life is one of the important characteristic quantities of radionuclides. In view of the current deficiencies in the experimental teaching of half-life measurement for nuclear majors in domestic universities, a teaching experiment for measuring the half-life of radionuclides through thermal neutron activation method has been optimized. The relevant experimental principles are introduced, including selecting suitable neutron activation elements, preparing activated samples, and establishing an experimental platform. The measurement data of the half-lives of 116mIn, 108Ag, and 110Ag nuclides obtained from the experiment have an error of less than 5% compared with the recommended values of the International Nuclear Database. At the same time, the selection of key parameters such as the thickness of the activated sheet, activation time, and measurement interval in the experiment, as well as the precautions for students in operating the experiment, are pointed out, which can provide reference for teaching half-life measurement experiments in other universities..
Experiment Science and Technology
- Publication Date: May. 28, 2025
- Vol. 23, Issue 3, 100 (2025)
Comprehensive Experimental Design of Distribution Characteristics of Microplastics in Lake
Yufeng ZHAO, Chen YANG, Guiping WU, Meng XU, and Longzhe CUI
Microplastics (MPs), as an emerging pollutant, have the characteristics of small size, difficulty degradation, and persistence. Moreover, their surface properties are easily affected by environmental conditions, making them a vane for the migration of other pollutants in the environment, causing potential ecological anMicroplastics (MPs), as an emerging pollutant, have the characteristics of small size, difficulty degradation, and persistence. Moreover, their surface properties are easily affected by environmental conditions, making them a vane for the migration of other pollutants in the environment, causing potential ecological and environmental risks. Taking Nanhu Lake in Wuhan as an example, the sediment samples on the shore of Nanhu Lake are collected through systematic point setting. The abundance, morphology, color, and composition of microplastics in sediments are identified by optical microscopy and Fourier transform infrared spectroscopy (FTIR), and the main sources of microplastics are analyzed. Taking microplastic as the experimental object, the designed experiment integrates basic teaching and scientific research hotspots, making it be comprehensive, applicable and exploratory. The study is conducive to cultivating students’ innovative and practical ability and scientific research literacy..
Experiment Science and Technology
- Publication Date: May. 28, 2025
- Vol. 23, Issue 3, 107 (2025)
Experimental Instrument Development and Maintenance
An Experimental Apparatus for Simultaneous Characterization of the Flow and Spray of Fire Suppressants and Its Teaching Mode Design
Xiaomin NI, and Zhong ZHENG
The design of an experimental apparatus and its teaching mode are proposed for simultaneously visualizing the flow and the spray of gaseous fire suppressants, whose flow is complex and invisible. With electrical capacitance tomography and laser shadowgraphy, the flow pattern in the pipe and the structure of the spray oThe design of an experimental apparatus and its teaching mode are proposed for simultaneously visualizing the flow and the spray of gaseous fire suppressants, whose flow is complex and invisible. With electrical capacitance tomography and laser shadowgraphy, the flow pattern in the pipe and the structure of the spray out of the nozzle is visualized. Meanwhile, the details of the temperature and pressure in the discharging system are acquired synchronously by the sensors with high sampling frequency. Conducting experimental teaching on this apparatus, students could observe directly the discharging process of fire suppressants, master the measurement methods of the related key parameters, and develop interdisciplinary concepts and innovative spirits..
Experiment Science and Technology
- Publication Date: May. 28, 2025
- Vol. 23, Issue 3, 142 (2025)
Experimental Teaching and Teaching Experimental
Design of Microgrid Teaching Experimental Platform Based on dSPACE
Gaoxiang LI, Jingjing HUANG, Hongzhi PAN, and Xiao LIU
To enhance students’ understanding of microgrids, a dSPACE based microgrid teaching experimental platform is designed and implemented. On this platform, by using the dSPACE controller, the design and verification of various control algorithms can be quickly established and completed, and a microgrid experimental systemTo enhance students’ understanding of microgrids, a dSPACE based microgrid teaching experimental platform is designed and implemented. On this platform, by using the dSPACE controller, the design and verification of various control algorithms can be quickly established and completed, and a microgrid experimental system suitable for engineering experimental teaching can be constructed. This system can be flexibly set up with various hardware circuits, including the converter power module, energy storage module and load module, etc. The designed micro-grid teaching experiment platform uses modular design to improve the scalability and design flexibility of system components, and the constructed microgrid topology structure is flexible and variable. Students can conduct secondary development on the platform, which can effectively train students’ abilities in software and hardware design and control algorithm design, deepen their understanding of the operating mechanism and control methods of microgrids, and improve their innovative practical abilities..
Experiment Science and Technology
- Publication Date: May. 28, 2025
- Vol. 23, Issue 3, 1 (2025)
Experimental Course Design of Heat Conduction Based on Multiple Heat Transfer Modes
Wenting XING, and Yongfeng DAI
Engineering heat transfer is the science that studies the law of heat transfer in engineering applications. It is based on the first and second law of thermodynamics, uses some experimental rules to study the rate of heat transfer, so the experiment part is crucial to this discipline. In order to reinforce students’ unEngineering heat transfer is the science that studies the law of heat transfer in engineering applications. It is based on the first and second law of thermodynamics, uses some experimental rules to study the rate of heat transfer, so the experiment part is crucial to this discipline. In order to reinforce students’ understanding of heat transfer process, grasp the core knowledge points of heat transfer theory, the experiment course of heat conduction based on multiple heat transfer modes is set up. This course content includes axial heat conduction experiment, radial heat conduction experiment, fin heat conduction simulation experiment and gas/liquid heat conduction experiment. The application practice shows that the experimental course has rich content and strong comprehensiveness. It effectively improves students’ hands-on skills and project practical ability and achieves good teaching effect..
Experiment Science and Technology
- Publication Date: May. 28, 2025
- Vol. 23, Issue 3, 7 (2025)
Teaching Design of the Frequency Domain Analysis Method for the Course of Signals and Systems Based on the Integrated Classroom Practice
Ting CHENG, Junjie WU, Yun ZHOU, Youxin LYU, and Ziyang CHENG
The course of Signals and Systems plays a crucial role in the knowledge system of electronic information majors as a fundamental course. An integrated classroom pratical teaching of “frequency domain analysis method” is designed, which is an important method in the cource, and a visual teaching approach based on a unifThe course of Signals and Systems plays a crucial role in the knowledge system of electronic information majors as a fundamental course. An integrated classroom pratical teaching of “frequency domain analysis method” is designed, which is an important method in the cource, and a visual teaching approach based on a unificed system platform for three domain analysis problems is proposed, including the response of linear and time invariant system to the deterministic signal, Nyquist sampling theorem and signal reconstruction based on sampled signal. Through independent practice, students can visualize and perceive theoretical knowledge, and in this process, they can realize reverse reasoning verification and achieve the goal of self-perception. Practical teaching in class not only enables students to have a deeper understanding of the knowledge points, but also effectively stimulates their interest in learning this course. Statistical data show that after introducing classroom practical teaching, the average score of this course has increased from less than 80 to over 90, with an average score increase of 18.60%. The proportion of outstanding students in the comprehensive evaluation results has increased by 257.12%, reflecting good teaching effectiveness..
Experiment Science and Technology
- Publication Date: May. 28, 2025
- Vol. 23, Issue 3, 13 (2025)
Experimental Design for Hard-in-Loop Simulation of Control in Automation Major Under New Engineering
Jie DING, Yingjiang ZHOU, and Min YANG
In order to comprehensively carry out the construction of the automation major under the background of new engineering, the experimental teaching of related control courses urgently needs to be upgraded. For this purpose, a hard-in-loop (HIL) flying control teaching platform is constructed in response to the requiremenIn order to comprehensively carry out the construction of the automation major under the background of new engineering, the experimental teaching of related control courses urgently needs to be upgraded. For this purpose, a hard-in-loop (HIL) flying control teaching platform is constructed in response to the requirements of new engineering construction. Compared to the simulation control experiments and traditional oven temperature control/motor control experiments, the HIL can control unmanned flying vehicles by setting variables as pitch, yaw and roll angles, and controlling the attitude of a true flying vehicle. Experimental projects for the core knowledge of the course of Principles of Automatic Control are developed, including time-domain and frequency-domain charateristics of control systems, PID controller design and extended experiments, etc. The experimental design for HIL simulation makes the flying control located on the flying vehicle itself, combines the simulation with actual plant, and control theory with piratical knowledge, so as to understand the meaning of control theory on improving new quality productive forces..
Experiment Science and Technology
- Publication Date: May. 28, 2025
- Vol. 23, Issue 3, 19 (2025)
Exploration and Practice of Experimental Teaching Based on Scientific Research Projects
Donghui WANG
Taking the protein subcellular localization experiment of tobacco instantaneous transformation as an example, an experimental teaching model combined with scientific research topics is reported, which emphasizes the exploration of experimental principles and strengthens the experimental teaching process. The practice sTaking the protein subcellular localization experiment of tobacco instantaneous transformation as an example, an experimental teaching model combined with scientific research topics is reported, which emphasizes the exploration of experimental principles and strengthens the experimental teaching process. The practice shows that this innovative approach can promote the continuous improvement and development of botany experimental teaching and cultivate high-quality talents with more practical ability and innovative thinking. It can be expected that the approach proposed can not only be applied to the field of botany, but also in other courses, play a positive role in promoting the development of experimental teaching in higher education..
Experiment Science and Technology
- Publication Date: May. 28, 2025
- Vol. 23, Issue 3, 25 (2025)
Application of Particle Size and Shape Analyser in Experimental Teaching of Soil Mechanics
Pei CAO, Yang YANG, and Xiaolei ZHANG
Taking full advantages of large-scale instruments to promote the reform of undergraduate experimental teaching is an important part of the “open sharing” management of large-scale instruments, and it is also one of the challenges currently faced by many universities in the management of large-scale instruments. ApplyinTaking full advantages of large-scale instruments to promote the reform of undergraduate experimental teaching is an important part of the “open sharing” management of large-scale instruments, and it is also one of the challenges currently faced by many universities in the management of large-scale instruments. Applying the large-scale instrument particle size and shape analyzer to the undergraduate soil mechanics experimental teaching and achieving the expected results is a beneficial attempt and exploration we have made. This provides a way and an experience for the application of large-scale instruments in undergraduate experimental teaching. The results achieved show that the improved course is not only rich in content, capable of stimulating students’ interest in learning, and conducive to comprehensively fostering students’ hands-on skills and innovative thinking, but also can significantly enhance the service efficiency of large-scale instruments, enabling them to better serve the cultivation of high-quality talents..
Experiment Science and Technology
- Publication Date: May. 28, 2025
- Vol. 23, Issue 3, 32 (2025)
Experiment of the Double Tuned Resonant Amplifier Circuit Based on Theoretical Analysis
Weizheng JIN, Yuan SUN, and Guangyi YANG
In order to meet the teaching needs of high frequency double tuning resonance amplifier circuit that is absent in the communication electronic experiment teaching, the coupling characteristics of capacitor parallel double circuit in high-frequency double tuned amplifier are theoretically deduced and mathematically analIn order to meet the teaching needs of high frequency double tuning resonance amplifier circuit that is absent in the communication electronic experiment teaching, the coupling characteristics of capacitor parallel double circuit in high-frequency double tuned amplifier are theoretically deduced and mathematically analyzed, and the two-dimensional and three-dimensional detailed analysis diagrams of the normalized frequency characteristic function of the circuit are given. In the experiment design, the passband of this circuit has two states of continuous and discrete distribution, and the hardware experimental circuit of double tuned amplifier is designed to verify the correctness. Through the experimental circuit, students can thoroughly understand the principle of the high-frequency small signal resonant amplification circuit and master the circuit design method..
Experiment Science and Technology
- Publication Date: May. 28, 2025
- Vol. 23, Issue 3, 38 (2025)
Design and Practice of Innovative Experimental Project of “Flexible and Optical Storage System”
Yue YIN, Minrui LENG, Hang XU, and Qun ZHOU
In order to foster talent and promote scientific research and technological innovation, the industrial problems in the field of design and control of light storage flexible and direct systems are integrated into our experimental teaching. This allows us to transform scientific research achievements into teaching resourIn order to foster talent and promote scientific research and technological innovation, the industrial problems in the field of design and control of light storage flexible and direct systems are integrated into our experimental teaching. This allows us to transform scientific research achievements into teaching resources that are relevant to the knowledge points covered in experiments. The designed innovative experimental project, light storage flexible and direct system, encourages undergraduate students to approach the topic from the perspective of power system source-side converters. In this way, students can learn about new energy systems and deepen their understanding of cutting-edge switching power supply design issues, such as photovoltaic interface DC-DC converter design and energy storage converter design. They also gain knowledge in new energy control and expand their awareness of engineering and technical problems that arise in actual production processes. The experimental teaching is carried out by utilizing the modular hardware topology and control structure to guide students to conduct scientific exploration and knowledge expansion. Meanwhile, it provides a multi-functional and flexibly designed experimental platform for students to comprehensively apply their professional knowledge and solve complex practical engineering problems..
Experiment Science and Technology
- Publication Date: May. 28, 2025
- Vol. 23, Issue 3, 45 (2025)
Practice on Hybrid Teaching Reform of Automatic Control Principle Experiment Course
Jingfeng WANG, Zeming FAN, and Tingting YANG
The experimental course of automatic control principles is an important basic course for undergraduate students majoring in aerospace and information technology. In order to better address the problems in experimental teaching such as the lack of innovation in course content, the single teaching method and means, and tThe experimental course of automatic control principles is an important basic course for undergraduate students majoring in aerospace and information technology. In order to better address the problems in experimental teaching such as the lack of innovation in course content, the single teaching method and means, and the incomplete comprehensive experimental assessment, the experimental course adopts a online and offline hybrid teaching mode, with the addition of online massive open online course (MOOC) content and innovative comprehensive experimental projects. New reform measures such as multi-dimensional teaching methods and students’ autonomous learning experiments in teaching methods have further highlighted the cutting-edge and contemporary nature of the experimental course of automatic control principles. These measures improve students’ interest in learning and in-depth participation in the course. At the same time, the course adopts a full teaching process assessment mode of “online and offline”, which greatly stimulates students’ awareness and learning attitude of emphasizing the process in the experimental classroom, and promotes the teaching effect of the experimental course..
Experiment Science and Technology
- Publication Date: May. 28, 2025
- Vol. 23, Issue 3, 51 (2025)
Comprehensive Experimental Design for Inactivating Surface Microorganisms by Atmospheric Pressure Low-Temperature Plasma
Ye SUN, Yangmeng PI, Yi YANG, Xiang LI, and Fangxia SHEN
Surface microbial inactivation is a long-term social demand, and low-temperature plasma inactivation of surface microorganisms is a hot research topic in surface microbial inactivation. Aiming at the hot spot, the latest research results of a new type of low-temperature plasma disinfection and sterilization are introduSurface microbial inactivation is a long-term social demand, and low-temperature plasma inactivation of surface microorganisms is a hot research topic in surface microbial inactivation. Aiming at the hot spot, the latest research results of a new type of low-temperature plasma disinfection and sterilization are introduced into the comprehensive experiment of environmental engineering. In our comprehensive experiment, SARS-CoV-2 (2019-nCoV) Spike pseudo virus is selected as inactivated object, and the research on the inactivation of object surface microorganisms by atmospheric pressure low-temperature plasma is carried out. The main research conclusions show the disinfection and sterilization efficiency of bacteria can reach 99% within an action time of less than 14 s. While the action time for SARS-CoV-2 (2019-nCoV) Spike pseudo virus with an inactivation efficiency of over 99% is relatively longer, which is 1 min at 23 ℃ and 4 ℃, and 3 min at ?20 ℃. The results show that atmospheric pressure low temperature plasma technology is suitable for the inactivation of surface microorganisms such as food packaging in the cold chain industry. The introduced experiment can improve the students’ ability to carry out experiments on low-temperature plasma and environmental engineering microbiology, and also stimulate their enthusiasm and interest in experimental science..
Experiment Science and Technology
- Publication Date: May. 28, 2025
- Vol. 23, Issue 3, 55 (2025)
Design Reform of Polymer Material and Engineering Experiment Combined with Local Characteristic Industry
Shen DIAO, Huimin WANG, Hongliang LIU, Baorong DUAN, Yaochen ZHENG, and Yanan GU
Serving the society is one of the three functions of high education, and serving the local economy is the inevitable trend and mission of the connotative development of provincial university. In this paper, based on the polymer material and engineering experiment course of Yantai University and the characteristic indusServing the society is one of the three functions of high education, and serving the local economy is the inevitable trend and mission of the connotative development of provincial university. In this paper, based on the polymer material and engineering experiment course of Yantai University and the characteristic industry of polyurethane materials in Yantai, a comprehensive experiment on the preparation and properties of waterborne polyurethane emulsion is designed. Combined with the research development of polyurethane emulsion and polyurethane enterprise’s production practice, the design reform in both the teaching content and the teaching form are carried out, which not only improves the analytical ability and the practical ability of the students but also achieves “teaching according to the need” to cultivate talents for the polyurethane industry in Yantai and improves the employment competitiveness in the special area of the students..
Experiment Science and Technology
- Publication Date: May. 28, 2025
- Vol. 23, Issue 3, 62 (2025)
Experimental Design of Nonvariable Spectral Protein-Ligand Interaction Based on Experimental Teaching
Jian WAN, and Ke LIU
Guided by experimental teaching combined with the requirements of easy availability of experimental materials, clear experimental process, stable experimental results, and short experimental time, the experimental teaching design for identification of protein ligand interaction by non-variable property spectrum technolGuided by experimental teaching combined with the requirements of easy availability of experimental materials, clear experimental process, stable experimental results, and short experimental time, the experimental teaching design for identification of protein ligand interaction by non-variable property spectrum technology is constructed by means of experimental process optimization, core consumables homemade, dynamic evaluation system construction, etc., to solve the difficulties in applications of large instruments and equipment in experimental teaching. Through the introduction of the latest experimental techniques in the professional hot fields, the designed experimental project is conductive to broadening student’s horizon, which enhances their professional identity, and improves their core major quality..
Experiment Science and Technology
- Publication Date: May. 28, 2025
- Vol. 23, Issue 3, 68 (2025)
Experimental Design and Implementation of Direct Determination of Odorous Substances by Headspace Solid Phase Microextraction Combined with Gas Chromatography-Mass Spectrometry
Junxia WANG, Guangli YAN, Youyi WU, and Feiyue QIAN
Based on the requirements of the cultivation of innovative talents in new engineering, the previous scientific research results of teachers are applied to the experimental teaching of graduate students, and the headspace solid phase microextraction (HS-SPME) combined with selective ion detection mode GC-MS method is esBased on the requirements of the cultivation of innovative talents in new engineering, the previous scientific research results of teachers are applied to the experimental teaching of graduate students, and the headspace solid phase microextraction (HS-SPME) combined with selective ion detection mode GC-MS method is established to accurately analyze 9 odorous substances in water samples from the drinking water source of Taihu Lake, which integrates the sample extraction and purification. This HS-SPME technology has some advantages with low/solvent-free consumption, less sample consumption, high enrichment efficiency and high automation. The experimental teaching gives full play to the advantages of the joint automation of pretreatment technology and instrument analysis, breaks through the tedious steps of traditional sample pretreatment, shows the automatic analysis method of trace organic pollutants in environmental samples, and realizes the in-depth integration of teaching and scientific research..
Experiment Science and Technology
- Publication Date: May. 28, 2025
- Vol. 23, Issue 3, 72 (2025)
Design of a Embedded System Training Platform for Cultivating Innovative Skilled Talents
Ling WU, Qingqing CAO, and Lei ZHAO
In view of the problems in practical teaching of embedded systems and the urgent need for vocational undergraduate education to cultivate high-level innovative skilled talents, a center, four levels, five links, two sets of training equipment of ‘data glove system’ and ‘smart car system’ have been designed independentlIn view of the problems in practical teaching of embedded systems and the urgent need for vocational undergraduate education to cultivate high-level innovative skilled talents, a center, four levels, five links, two sets of training equipment of ‘data glove system’ and ‘smart car system’ have been designed independently, and more than 20 experimental project systems have been developed. On these two sets of practical training equipment, students can achieve practical training such as device sharing, project association, resource expansion, and secondary development, thereby cultivating students’ innovative thinking and innovative practical ability and highlighting the good application effect of the equipment..
Experiment Science and Technology
- Publication Date: May. 28, 2025
- Vol. 23, Issue 3, 78 (2025)
Laboratory Construction and Management
Research on the Informatization and Intelligentization Construction Plan of Basic Teaching Laboratories
Xiangwei ZHANG, and Lili HUANG
Centering on the informatization and intelligentization construction of basic teaching laboratories, and by analyzing the current status of informatization and intelligentization construction of basic teaching laboratories at home and abroad, a comprehensive construction plan is designed, including key measures such asCentering on the informatization and intelligentization construction of basic teaching laboratories, and by analyzing the current status of informatization and intelligentization construction of basic teaching laboratories at home and abroad, a comprehensive construction plan is designed, including key measures such as building an intelligent management platform, introducing advanced teaching technology, strengthening the security monitoring system, and developing a digital teaching resource library and a teaching behavior analysis system. Through the implementation of this plan, it is anticipated to significantly enhance the informatization and intelligentization levels of laboratories, promote the optimal allocation of educational resources, enhance students’ learning experiences and participation, and ensure the safe and stable operation of laboratories..
Experiment Science and Technology
- Publication Date: May. 28, 2025
- Vol. 23, Issue 3, 147 (2025)
Research of Reform in the Construction of Electronic Information Practice Base under the Background of Integration of Industry and Education
Shasha ZHANG, Yanru BAI, and Qinggong LYU
The integration of industry and education and the school-enterprise cooperation are important links in promoting the connection between industrial demands and talent cultivation, effective means to enhance new quality productivity, and important ways to cultivate students’ comprehensive abilities. As an important trainThe integration of industry and education and the school-enterprise cooperation are important links in promoting the connection between industrial demands and talent cultivation, effective means to enhance new quality productivity, and important ways to cultivate students’ comprehensive abilities. As an important training base for students to exercise their practical abilities, the Electronic Internship Base of Beijing University of Science and Technology actively cooperates with key enterprises in various forms and introduces enterprise hardware and software resources to build an honor course group and hierarchical teaching content that integrates industry, competition and education, promote innovative talent training models that enhance both teacher’s engineering ability and student’s comprehensive competitiveness, and establish a joint laboratory for resource exchange. The base can promote the cultivation of talents and provide a construction idea for the construction of electronic information practice bases..
Experiment Science and Technology
- Publication Date: May. 28, 2025
- Vol. 23, Issue 3, 156 (2025)
Laboratory Environment and Safety
Research on the Disposal Strategy of University Laboratory Waste Based on the Game Theory
Chao SHEN, and Linsheng SHENG
Recently, the concept of green development is attracted intensively with the continuous improvement of the requirements of ecological civilization construction in the new era. Simultaneously, the discharge and pollution of waste from university laboratories are greatly attracting attention from all sectors of society. Recently, the concept of green development is attracted intensively with the continuous improvement of the requirements of ecological civilization construction in the new era. Simultaneously, the discharge and pollution of waste from university laboratories are greatly attracting attention from all sectors of society. Based on the current situation of waste disposal in university laboratories, the evolutionary game model between laboratories and third-party recyclers is constructed and the disposal strategy choices and evolutionary trends of both sides in the case of perfect competition or cooperation are analyzed. Those results indicate that cooperation is the best choice for them to increase profits, albeit laboratories and third parties may change their cooperation and competitive strategies over time. Moreover, the optimal reward and punishment mechanism is conducive to promoting their cooperation trend and boosting their profits..
Experiment Science and Technology
- Publication Date: May. 28, 2025
- Vol. 23, Issue 3, 136 (2025)
Virtual Simulation Technology
Experimental Design of Friction and Wear under the High-Speed and High-Temperature Conditions Based on the Combination of Virtuality and Reality
Lin WANG, Pengpeng LI, Ruye LU, Hua SU, and Guoding CHEN
The material test of friction and wear under the high-speed and high-temperature conditions has some difficulties, such as long experimental period, high experimental complexity and security risks. In order to lower the risks, periods, and costs during operating, the testing device and corresponding virtual simulation The material test of friction and wear under the high-speed and high-temperature conditions has some difficulties, such as long experimental period, high experimental complexity and security risks. In order to lower the risks, periods, and costs during operating, the testing device and corresponding virtual simulation system are developed. The testing device can be used to conduct the material experiments of tribology characteristics for bearings, gears, seals in aero-engines. The combination of virtuality simulations and reality operations is helpful for students to promote the understanding of the knowledge of basic theory, operating steps, experimental processes, results presentations of high-speed and high-temperature friction and wear testing, and students can receive practical training without the restrictions of time and space. After completing the virtual simulation experiment, offline physical operation training is carried out. In this way, students can form a realistic understanding of the structural composition and operation process of the high-speed and high-temperature friction and wear testing device. Finally, the study performance of different learners are evaluated based on virtuality simulations, reality operations, and experiment reports by the ways of process assessment and outcome assessment..
Experiment Science and Technology
- Publication Date: May. 28, 2025
- Vol. 23, Issue 3, 112 (2025)
Construction of a Ratio Control System Experiment Simulation Platform in the Process Control Engineering Course
Lihua HUANG, Guogang GAO, and Jiao HE
Aiming at the difficulty in understanding the control principle and adjustment process of the double closed-loop ratio control, a hardware-in-the-loop simulation platform has been developed. The platform is composed of process flow analysis, double closed-loop ratio control scheme configuration, flow chart configuratioAiming at the difficulty in understanding the control principle and adjustment process of the double closed-loop ratio control, a hardware-in-the-loop simulation platform has been developed. The platform is composed of process flow analysis, double closed-loop ratio control scheme configuration, flow chart configuration, proportional-integral-derivative (PID) parameter tuning, and simulation operation modules. On this platform, the process analysis, sensor and actuator selection, control scheme design and automatic control loop operation of the double closed-loop ratio control system can be conducted. The results show that the platform developed comprehensively covers the theoretical knowledge of double closed loop control and has good interactivity, and the experimental process is clear and highly operable. The platform illustrates the deep integration of theoretical knowledge and practical problems, which is conducive to cultivating students’ problem-solving ability..
Experiment Science and Technology
- Publication Date: May. 28, 2025
- Vol. 23, Issue 3, 117 (2025)
Research on the Application of Virtual Simulation in Open Experimental Teaching of SEM
Lixia BAO, Niu ZHANG, Ruiwen SHAO, Peifeng GAO, and Shaochun PENG
To fully leverage the role of scanning electron microscopy (SEM) in the cultivation of innovative talents, a virtual simulation system has been introduced into the open experimental course of Micro World under Scanning Electron Microscopy, which solves the problems existing in the traditional open experimental teachingTo fully leverage the role of scanning electron microscopy (SEM) in the cultivation of innovative talents, a virtual simulation system has been introduced into the open experimental course of Micro World under Scanning Electron Microscopy, which solves the problems existing in the traditional open experimental teaching. The powerful functionality and interest of the virtual simulation system can effectively mobilize student’s initiative and enthusiasm for learning. By navigating through the increasingly challenging teaching-learning process of “independent learning?mastering knowledge?designing practical content?completing experimental inquiry”, students will actively construct relevant knowledge systems, stimulate innovation awareness, and improve scientific research innovation abilities. In this way, a multi-level experimental teaching mode of “irtualization first, reality second, supplementing reality with virtualization, and combination of virtualization and reality” is thus formed, which broadens and deepens the scope of open experimental teaching, showing excellent teaching practice results..
Experiment Science and Technology
- Publication Date: May. 28, 2025
- Vol. 23, Issue 3, 122 (2025)
Conversion Design and Practical Effect of Scientific Research Achievements into “Profoundness-Innovation-Challenging” Virtual Simulation Experiment Teaching
Fengjing WU, and Xiaojuan LIU
In view of the current problems existing in the experimental courses of chemistry and chemical engineering, such as outdated content, single form, and less attractive to students, and in accordance with the goal of cultivating applied talents and the teaching requirements of comprehensive experiments in the major, the In view of the current problems existing in the experimental courses of chemistry and chemical engineering, such as outdated content, single form, and less attractive to students, and in accordance with the goal of cultivating applied talents and the teaching requirements of comprehensive experiments in the major, the latest scientific research achievements are transformed and designed into “Virtual Simulation Experiment of Environmentally Friendly Silicon-Zirconium Composite Pretreatment Process” based on the “profoundness-innovation-challenging” standard, which is applied in assistant experimental teaching. The practical results show that the virtual simulation experimental teaching enhances the vigor and motive power to experimental teaching, promotes teaching efficiency, and increases the students’ experimental skills, innovation ability and comprehensive ability to solve complex problems..
Experiment Science and Technology
- Publication Date: May. 28, 2025
- Vol. 23, Issue 3, 128 (2025)
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