The versatile video coding (H.266/VVC) takes several improvements in each coding step, and the overall effect of many measures does result in a doubling of the coding efficiency compared to high efficiency video coding (HEVC). In this paper, several video sequences with different dynamic conditions (*.yuv) are compressed and decompressed using the H.266 codec, and the differences in coding efficiency and time loss after video compression are investigated by varying the quantization parameters (QP) values at different bit rates. Experiments show that for lower bit rates and near the bit rate commonly used for 4K video (20 Mbps), there is a significant advantage in both bit coding rate and peak signal to noise radio (PSNR), but at very large bit rates, both perform nearly identically. Calculations of the time multiplier and bitrate savings reveal a wide range of results for each video sequence, suggesting that coding complexity and coding performance are highly dependent on the selected video sequence itself. H.266 improves significantly for more complex video sequences, with a significant increase in coding complexity, up to 100x at some bitrates. H.266 also poses a significant challenge to hardware arithmetic, which will need to be further optimized in the future.

To strengthen the network protection, clean up the mining Trojan virus, and effectively control the cryptomining behavior of the campus network, a detection and blocking model of mining behavior is proposed. The model adopts the signature-based deep packet inspection technology, which is combined with dynamic threat intelligence, establishes a state machine model of mining protocols, conducts in-depth packet analysis, identifies mining protocols, and realizes the detection, identification and blocking of mining traffic at the campus network egress. Practice has proved that the model can detect the cryptomining-related traffic in real time, dynamically intercept the communication traffic between the victim miner and the mining pool, and locate the infected host in real time, which effectively curbs the malicious cryptomining behavior of the campus network.

With the rapid development of the computer virtual simulation technology, the demand for applying the virtual simulation technology to high-speed rail, transportation, and vehicle testing fields is increasing. In order to address issues such as the high cost of high-speed rail braking tests, lack of test safety, and non-visibility of data, this study utilizes Unity3D as the development platform to design a virtual simulation experimental platform for high-speed rail brake disc friction and wear under different environmental temperatures. The research involves building the test scenes and mechanical structures based on modeling software such as SolidWorks and 3dsMax, and the Unity3D engine is employed for the user interface (UI) design, and C# language was used for logical programming and functionality implementation. Thus, a high-speed train braking friction simulation and data visualization platform is realized, enabling users to intuitively analyze the wear conditions of brake discs under different environmental conditions.

In order to obtain the multispectral image of the non-destructive test sample, a method of obtaining the multispectral image by using the liquid crystal tunable filter (LCTF) is studied. LCTF has the functions of light modulation, deflection and filtering. The cascade of multi-stage Lyot wave plates can be electronically tuned in a wide spectral band. By changing the applied voltage, the dynamic modulation of the filter can be realized to obtain high-precision narrow-band spectral output. Compared with the traditional multi-spectral image obtaine by using the multi-spectral spectrometer, LCTF has the advantages of simple control, low modulation voltage, fast continuous modulation and so on. In this paper, the voltage phase delay characteristics of a group of wave plates are measured by the quarter-wave retarder method, and the appropriate wave plates are selected to form a triple filter to realize the narrow-band filtering of the broadband spectrum. A multispectral imaging system is obtained by this method to realize non-destructive testing for fruit quality.

The course content and teaching method of conventional electronic circuit courses can no longer meet the rapid development requirement of the contemporary electronic information technology industry. In 2018, a fundamental discipline course “Circuit Analysis and Electronics” merging two previous courses of “Fundamentals of Electric Circuits” and “Fundamentals of Analog Circuits” was launched in University of Electronic Science and Technology of China which carries reforms in the course contents and teaching methods. This work introduces the progress of teaching reforms and practices of this new course, and evaluates the teaching effect by analyzing the statistical data of student grade from 2018 to 2022. The analysis results show that good and stable teaching effect has been obtained after 5-year course construction, though the credit hours of this new course is significantly reduced compared to the total of previous two.

In order to deepen students’ understanding of the theoretical knowledge of the electrical drive technology and permanent magnet synchronous motor (PMSM) direct torque control (DTC) system, cultivate their cooperative ability and comprehensive practical ability, an experimental platform for the PMSM DTC system has been established. The HiGale semi physical simulation system and MATLAB have been introduced into the course teaching. Students are required to conduct simulation modeling, parameter debugging, operation, and analysis of the PMSM DTC system based on MATLAB, further conduct semi physical simulation experiments in HiGale, and analyze the main experimental processes and results. This platform makes the teaching method more diverse, helps students deepen their understanding of the DTC system, improves their ability to integrate theory with practice, and stimulates students’ interest in learning the motor control technology.

One of the important ways to improve the experimental teaching level and the talent training quality is dismantling, refining and adding the international frontier theories and technologies to the experimental teaching in time. The comprehensive experiment of induction and detection of autophagic flux is designed, which includes cell passage culture, cell transfection and induction and observation of autophagy. A systematic, comprehensive and exploratory modular experimental teaching content is formed. Through double fluorescent labeled autophagosome marker protein expressed in cells and starvation inducing, autophagosomes and autophagic flux are observed by the fluorescence microscope. The practice results in undergraduate experimental teaching indicate that it is helpful to cultivate students’ scientific research thinking and the innovative spirit, and improve their ability to analyze and solve problems.

In the art experiment teaching process, the safety supervision and intelligent decision-making means based on the information technology are missing. Among the mainstream safety techniques, finger vein recognition has the advantages of living body recognition, high accuracy and convenience, which adapt to the application of art experiment teaching supervision. This paper proposes a novel finger vein recognition method combing traditional methods with soft biometrics to improve the recognition performance. Based on the novel method, an intelligent supervision system of art experiment teaching is proposed, which assists the management decision-making while realizing the experiment teaching supervision. The system effectively solves the common problems and comprehensively improves the supervision.

To promote the cultivation of undergraduates’ scientific research innovative thinking and practical ability, and to practice the collaborative education mechanism of “research and teaching”, the Langmuir-Blodgett (L-B) self-assembly technology to prepare a highly ordered polystyrene (PS) microspheres array experiment is taken as an example, which requires students to analyze the morphology, degree of order and laser diffraction of the as-prepared samples. This comprehensive experiment covers multiple knowledge points such as the principle of self-assembly, structural fabrication, morphology characterization and two-dimensional laser diffraction. It is beneficial for improving student’s scientific consciousness and practical ability, and it provides an advantageous exploration for cultivating new talents with innovative scientific thinking.

To achieve the teaching effect that the online experimental teaching is essentially equivalent to the offline teaching regardless of time and space limitations, a three stage online experimental teaching mode of “before class, during class and after class” is constructed by taking the online experimental teaching of the modern control theory course as a pilot. This paper expounds the design, flow, implementation and steps, and assessment of online experiment. Through two rounds of teaching practice, the results show that online experimental teaching can help students better understand theoretical knowledge, stimulate the enthusiasm of students in learning, and ensure that students’ engineering practice ability and innovation ability are effectively improved.

The paper aims to enhance the cultivation of innovative practical skills in university students and conducts a comprehensive experimental research on the course of Basic Principles of Concrete Structures. The study designs and implements a comprehensive experiment on the bond behavior of reinforcement and concrete, covering concrete compressive strength, pull-out test of reinforcement from concrete, analysis of factors affecting bond strength, and examination of reinforcement slip. Through these teaching contents, students’ understanding, mastery, and flexible application of professional knowledge are reinforced, while their practical and innovative abilities are elevated. The practical application of experimental teaching demonstrates that this comprehensive approach effectively improves the teaching outcomes, and students have provided positive feedback. This research offers valuable insights for the construction of new engineering disciplines in universities and the cultivation of students’ innovative practical skills.

Digital circuit experiment is a fundamental experimental course in science and engineering colleges. Existing teaching methods of experimental box are not flexible enough in time and space, and virtual simulation experiment cannot restore the real experiment operation, both of which can not meet the needs of students’ course learning. In response to the above problems, a remote online experimental teaching platform based on actual hardware circuits has been built. By using the internet, students can operate real hardware circuit experiments at any place and any time. Multi-level and multi-type experimental teaching content and online digital teaching resources are designed to construct an experimental teaching system for remote digital circuit courses. The online experimental teaching achieves substantial equivalence with offline experimental teaching in the experimental design, operation methods, testing steps and other aspects, improving the effectiveness of experimental teaching.

A comprehensive experiment of NiCu/Ni(OH)2 electrocatalysts is designed for the alkaline hydrogen evolution reaction（HER）, based on the science and education integration model. The efficient HER electrocatalyst was constructed in situ on the nickel foam substrate by electrochemical deposition and electrooxidation. Meanwhile, large instruments such as field emission scanning electron microscopy (FESEM), X-ray energy dispersive spectrometer (EDS), X-ray diffractometer (XRD) and X-ray photoelectron spectroscopy (XPS) were utilized to analyze the phase information of the catalyst. Linear sweep voltammetry (LSV), electrochemical impedance spectroscopy (EIS), cyclic voltammetry (CV) and chronopotential potentiometry (CP) were used to investigate the hydrogen evolution reaction of the catalyst. The comprehensive experiment broadens students’ vision and significantly improves students’ comprehensive experimental skills and innovative thinking ability.

In order to break through the difficulties of C language experiment teaching, guided by outcomes-based education(OBE) theory, the teaching innovation of the C language programming experiment course is implemented. By innovating the experimental classroom teaching mode, the result orientation of experimental teaching is strengthened, the role of students as the main body of experimental teaching is highlighted, and the operation process of experimental teaching is improved. By the design of guided cases, the interconnection between guided cases and experimental projects, and the application of guided cases in experimental teaching, experimental teaching methods have been reformed and experimental teaching content has been updated. The practice results show that the teaching innovation of C language programming design experiment course has optimized the teaching objectives, strengthened the theoretical support for the teaching innovation of the computer programming design experiment courses, and improved the teaching quality of experiment courses.

To meet the different learning needs of students, stratified teaching is the most effective teaching mode. Accurate classification for students is the key to the successful implementation of stratified teaching according to different learning abilities of students. Taking the course of Projects for Hydraulic and Pneumatic Technology as an example, this paper analyzes the main factors which affect students’ curriculum design ability. The classification attributes of students are determined according to the knowledge system and training objectives that support this course. The decision tree intelligent algorithm is used to classify the students, and the classification model is established with the data of previous students. Finally, the effectiveness of the model is verified.

A new paradigm for complementary metal oxide semiconductor (CMOS) integrated circuit teaching based on band gap reference (BGR) chip design is proposed to address the issues of high difficulty in the software usage and single teaching mode in experimental teaching of integrated circuit majors, combined with the requirements of professional training plans for course knowledge and abilities. This study adopts methods such as research analysis, survey questionnaire, theory and practice, and system evaluation to cultivate students’ experimental skills, design ideas, electronic design automation (EDA) methods, and analytical methods, thereby improving their practical ability and innovative awareness in the analog chip design. Teaching practice has shown that this teaching mode has achieved good teaching results in the practical teaching of integrated circuit talent cultivation.

The upgrading and innovation of experimental teaching is crucial to the cultivation of new engineering talents. Aiming at the high risk factor and complex operation process of traditional high-voltage experiments, this article virtual reality integrates （VR）technology into the teaching of high-voltage experiment courses. Taking the virtual experiment of high-voltage switchgear partial discharge multi-parameter testing and transformer winding deformation testing as examples, three-dimensional scene modeling and programming in Visual Studio are conducted to achieve the interactivity of the experiment, and a virtual experiment platform is established. Subsequently, a new high-voltage experimental teaching based on the virtual reality technology is carried out. Practice has proven that interesting VR experimental methods can fully ensure experimental safety, improve the utilization rate of laboratory resources, mobilize students’ learning enthusiasm, and meet the engineering training requirements for the cultivation of high-voltage and insulation technology professionals under the background of the new engineering.

The University of Electronic Science and Technology of China responds to the new engineering disciplines reform actively, continues to optimize undergraduate training programs, and establishes various project-based courses, achieving the goals of integrated undergraduate education over four years with progressively challenging objectives. The course “Design and Production of Sounding Rockets” is a challenging, comprehensive and innovative experimental course offered to third-year undergraduates. The core objective of this course is to cultivate the ability to solve complex engineering problems. Tailored to the realities of undergraduate education, the course deeply analyzes the complexity of sounding rocket systems. Based on this analysis, it creates improved experimental teaching scenarios centered around complex engineering challenges, fostering an immersive project-based learning experience. By employing improved course organization methods, a new “learning community” is established, which effectively promotes a student-centered and active learning model.

Aviation fuel may carry electrostatic charges during transportation, which may cause fires. Therefore, it is necessary to quickly measure the conductivity of aviation kerosene to avoid accidents. In this paper, a portable device that can quickly measure the conductivity of oil is produced by using the constant current source method, which adopts the design method of split design and compatible docking. The design of seperading the probe and body can measure the conductivity of tested oil with great accuracy. A set of testing experiments is conducted, and the results show that the device could effectively measure the conductivity of aviation fuel.

The traditional cloisonne enamel painting is mainly made by hand with a slow-speed draming, and the artistic effect of the painting will be affected if the quality is low. The laser processing technology has the characteristics of high precision, fast speed and high level of automation, and can be used in the production of cloisonne enamel painting. In this paper, the application of the laser processing technology in the production of cloisonne enamel painting is studied. Taking Wu Bing’s silk color painting “Hibiscus of Water” as an example, the process of manufacturing cloisonne enamel painting board using laser processing from design, debugging and processing to parameter setting is elaborated in detail, which provides ideas and references for the personalized customization and mass production of cloisonne enamel painting crafts in the future.

Addressing the prevalent safety education issues and hazard source analysis in university chemistry laboratories, this study endeavors to establish a robust system for laboratory safety education and access permissions. The objective is to elevate the standard of laboratory safety management. A multi-tiered safety education and access permission framework has been devised, spanning from the university level to departmental levels and down to specific laboratories. This system addresses various facets, such as the differentiation of educational content, streamlining of access permission procedures, diversification of educational approaches, and professionalization of teaching staff. Additionally, measures have been proposed to enhance the safety literacy of laboratory personnel and ensure the safe and orderly operation of laboratories. These include continual enhancements to the safety education and access permission system, along with the implementation of systematic, professional, and routine safety education training.

In view of the problems of information island, difficult management and low utilization in the construction, management and use of university laboratories, this paper puts forward the objectives and ideas of building smart laboratories under the background of the education digitization strategy. Through the construction of smart Internet of Things, the integration of smart laboratory comprehensive management platform, the construction of smart teaching space with virtual and real integration, and the construction of education evaluation system based on big data and other smart laboratory construction practices, the digital transformation of teaching has been promoted, the efficiency and utilization of laboratory management has been enhanced, the quality of talent training has been improved, and real-time and comprehensive data support services have been realized.

The development of national experimental teaching demonstration center plays an important role in the development of national higher education and the cultivation of innovative talents. To investigate the research and development of national demonstration center for experimental education, this paper selects journal articles from 2005 to 2022 in the CNKI database with the theme of "national demonstration center for experimental education" as the research object. Using visual analysis software such as VOSviewer and CiteSpace, the paper analyzes the characteristics, development context, hot spots, and frontier trends of the literature. The results show that the development of the experimental teaching center has experienced three periods: set-up period, rapid development period and stable development period. Four main research topics have been formed: the experience summary and analysis of the construction of the experimental teaching center, the discussion of experimental teaching mode and teaching effect, the research of management mechanism and operation mode, and the cultivation of college talents based on innovation ability and practical ability. From the perspective of the development trend, the research object is gradually shifting from the traditional laboratory to the virtual simulation laboratory, and the special attention is paid to the construction and development of the experimental teaching demonstration center under the background of new engineering. Through the analysis of the research and development context and hot pots of the national experimental teaching demonstration center, the high-quality development of higher education experimental teaching and the independent cultivation of innovative talents are promoted.

Under the background of digital campus construction, the scale and total amount of equipment assets have increased significantly. In order to improve the level of equipment asset management, combined with the current management status, the equipment asset management system with the asset module as the core is built by studying basic data collection methods, analyzing the ownership relationship and basic functions, designing description fields and extended functions, and sorting out business processes around five types of assets, including equipment, accessories, software, services and consumables. The system realizes the goals of data cooperative management, fault efficient processing, asset and user management, support decision and so on, and has achieved some results in practice.