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 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.

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 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.

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’ 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.

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 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.

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 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.

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 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.

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 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.

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 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.

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 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.

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. 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.

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 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.

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 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.

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 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.

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 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.

Transportation infrastructure is important to the “the Belt and Road Initiative”. The motivation of initiative sponsored by China originates from the international talent cultivation for the “New Engineering” . With the development of transportation engineering, a country with strong transportation network is an important moral education and intellectual education, and teaching designs of performance of geosynthetic-reinforced and pile-supported (GRPS) embankment as well as the mechanisms of soil arching effects are conducted. Based on the classical engineering cases of GRPS embankment, both laboratory tests and numerical simulations to model macro-micro soil arching effects are added into the multi-module international teaching course of embankment engineering, which contributes to improve the mechanical theoretical knowledge, the practical ability and the innovation education level of civil engineering students. The intellectual level and engineering attainment of civil engineering students can be promoted in order to satisfy a quick development of civil engineering and requirements of international labor market.

Corn straw (CS) is a resourceful adsorption material that can be prepared easily at low cost and exhibits high specific surface area. However, in the adsorption of heavy metals it has limitations, such as unstable properties and small adsorption capacity. The adsorption capacity can be enhanced by modifying surface microstructure, such as increasing functional group content or enriching specific surface and pore structure. However, the toxic reagent, complicated process, long cycle, intense reaction conditions and high preparation cost have become the limitations of modification. New economic and sustainable technologies are urgently required to convert postharvest residues into value-added products with minimal impact on the environment. A low-temperature oxidation method has been suggested as an economic and effective strategy for turning biomass into environmental remediation materials. The CS were modified in O2 and N2 atmospheres from 140 to 220 ℃, respectively, and Cu(II) was used as the heavy metal target. With the increase of modification temperature, the contents of total acid value, phenolic hydroxyl group, lactone group and total base value of CS (CS-O2-T) modified at O2 atmosphere were significantly higher than those modified by N2 (CS-N2-T). At the modified temperature of 220 ℃, the adsorption capacity of Cu(II) by CS-O2-220 is 34.5% higher than that by CS-N2-220, which is 2.2 times of original CS. The results demonstrate that acid-base functional groups on the surface of CS were increased significantly, and the adsorption capacity of Cu(II) was effectively increased after modified by oxidation. The results of SEM, BET, FTIR and XPS prove that the adsorption of Cu(II) is mainly due to the complexation and cation-π coordination of endoester group, phenolic hydroxyl group and aromatic structure by modified CS. This experiment helps students construct their theoretical knowledge such as the adsorption treatment of heavy metals in wastewater and master the experimental skills of straw modification, and it also cultivates their scientific research and innovation ability.

Given the widespread application of embedded systems in various fields, this article combines them with real-life scenarios to conduct in-depth reform and exploration of practical teaching for embedded systems. An experimental teaching system based on the embedded Android system has been designed, comprehensively covering key aspects such as underlying hardware operations, upper-level software development, hardware-software co-design, and comprehensive practical projects. This teaching system not only systematically imparts core knowledge and skills in embedded system hardware and software development but also effectively strengthens students’ practical abilities through a series of progressively challenging experimental content. It refines their thinking and approach to solving complex engineering problems and enhances their engineering literacy. Overall, this experimental teaching system is highly practical and plays a significant role in cultivating innovative and practically-minded embedded talents.

The shortage of integrated circuit testing talents and insufficient analysis of operational amplifier parameters in undergraduate teaching practice are two issues in current China. The experiment is a student-oriented comprehensive design experiment, including two progressive courses, namely test adapter design and automatic testing software development. The testing circuits for three typical operational amplifier parameters are provided in this article. The impact of the interaction of various parameters on measurement accuracy are analyzed and the means to reduce the impact are proposed. The design method of remote multi-parameter and multi-range switching circuit is given, for meeting the requirement of automatic test. As verified, the experimental results produced by the test system are consistent with the specified parameter range by the datasheet of the operational amplifier. The experiment includes the complete design flow of integrated circuit automatic test system, which provides the students not only the design practice for hardware circuits, embedded software and upper computer software, but also improves their system level design capability.

Under the background of vigorously promoting the digitalization of education, the digital technology has been deeply integrated with experimental teaching through digital intelligence empowerment, constructing a blended experimental teaching model that combines online and offline approaches. This model assesses, guides, and evaluates students throughout the entire experimental process and provides personalized experimental teaching. By effectively mining and analyzing data from students’ experimental processes, teaching strategies are adjusted in a timely manner to enhance the quality of experimental teaching. Practice has proven that this teaching model can effectively stimulate students’ interest in learning, improve classroom efficiency, achieve real-time monitoring and guidance of student experiments, and meet the personalized experimental needs of students.

The comprehensive experimental design takes the “flexible Zn-air battery” as the research and development hotspot. It relies on the major of new energy to solve the problems in the air cathode catalyst of flexible Zn-air battery. The axial coordination strategy is adopted to prepare the iron phthalocyanine (FePc) and the functional MXene composite catalytic materials. Besides, the physical characterization and electrochemical performance are conducted and further evaluated. This teaching design helps students master the basic preparation method of catalytic materials and deeply understand the electrochemical theory. It is also beneficial to make students be familiar with the assembly process and testing methods of flexible zinc-air batteries as well as the basic process of scientific research. Furthermore, the students can better understand the significance of new energy courses and improve the awareness of scientific research, exploration, and independent learning ability.

Under the backdrop of the “Emerging Engineering Education” initiative, the student situation and course objectives is analyzed by the reform team of electrical and electronic experimental courses. They contradictions between teaching objectives and outcomes, student self-development and traditional teaching paradigms, industry advancements and teaching resources, and the integration of ideological education into practical teaching segments with course hours are adressed, and innovative approaches are proposed concerning teaching content, pedagogical methods, teaching tools, and the integration of ideological education. The curriculum's innovative reform garnered positive student feedback and results.

Combining the discipline advantages and resources of university laboratories, a series of organic optoelectronics comprehensive experimental courses have been constructed with the problem-based learning (PBL) model. With diversified teaching content and methods, the ways of cultivation talents with keen problem awareness, broad scientific perspective, flexible thinking ability and team collaboration ability have been explored. These provide theoretical support and practical guidance for the construction of comprehensive open innovation experimental courses in university laboratories, and is of great significance for promoting the improvement of higher education quality and the innovation of talent training ways.

With the development of artificial intelligence (AI) technologies, the proportion of related courses and technological applications in university curricula has been increasing, leading to a surge in students’ demand for AI experimentation. However, the current AI experimental systems are not well-established, with most experiments being software-based and lacking hardware platforms and projects, which results in a disconnect from real-world engineering applications and industry needs. This experimental instruction integrates the CDIO (conceive, design, implement, operate) model, and to address issues such as slow inference speeds and long processing times in deep learning networks during experiments, an AI experiment based on the Huawei Ascend Atlas 200DK hardware platform is proposed, which utilizes deep learning networks to perform colorization of grayscale images. Through this experiment, students can learn about the principles of AI, the structure and inference processes of neural networks, set up software development environments, configure hardware systems, and deploy neural networks that integrate both software and hardware. The experiment also involves the completion of functional and performance testing. This hands-on experience helps students understand the operational mechanisms of neural networks from a practical application perspective, master their application methods on actual hardware platforms, and thereby enhance their overall engineering and practical skills in both software and hardware.

Microwave measurement is an important part of microwave engineering. In order to cultivate students’ practical and engineering application abilities in microwave measurement, an “opening blind box” series of inquiry-validation experiments is designed for the course of Microwave Technology. The series experiments of “opening blind box” microwave measurement focus on measuring standing wave ratio, load impedance, two-port network S-parameters, etc. In each measurement experiment, multiple measurement objects are set without providing basic indexes, and microwave device are measured through “open blind box” method, which increases the uncertainty of the experimental results. At the same time, “hidden items” are set in the measurement objects to exercise student’s microwave engineering practical ability and problem-solving ability, which establishes a technical foundation for students to further design microwave components.

The proficient use of typical testing equipment is a necessary prerequisite for engaging in the inspection and maintenance of command and control equipment. Practical teaching is an important way to cultivate and improve students’ engineering practical abilities and qualities, and is an indispensable part of higher education. In order to improve the effectiveness of practical teaching and enhance the maintenance and support ability of students, this article has designed the practical teaching content of inspection, maintenance and testing equipment, forming a practical teaching system with clear needs, prominent focus, rich levels, and comprehensive coverage. It has been verified and optimized in teaching activities, achieving good teaching results.

In the context of the new engineering, the major of energy and power engineering is based on the national energy strategy demand, aiming to cultivate high-quality innovative professionals, and experimental teaching plays an important role in cultivating talent innovation and practical abilities. This major has reformed teaching content and methods through four measures of exploring ideological and political elements in experimental courses, integrating high-quality video resources, highlighting project characteristics, and promoting informatization construction, and implements the continuous improvement mechanism through optimized assessment methods and multi-channel feedback of teaching effect. It has achieved remarkable results in cultivating innovative talents in the field of clean energy utilization and significantly improved the quality of experimental teaching.

Cytogenetic experiment is a required course for plant production majors. The traditional teaching method of it is generally based on the verification experiment, which is difficult to stimulate students’ practical motivation and recognition of the major. Considering the disadvantages of confirmatory experiment, the confirmatory experiments are designed as exploratory experiments, and both in and out of the classroom with online teaching are conbined. In this class, students are considered as “scientists”, and are encouraged to participate in the whole experimental process. This type of teaching pays attention to students’ personality development and experience and feeling, and let students become the leader of the experiment, which stimulate students’ learning motivation and professional interest, effectively enhance their innovative ability.

The RLC series resonance experiment is a basic experimental content in circuit experiments. During the experiment, the error of the resistance voltage during resonance between the measured value and the theoretical value is discovered. The research on the frequency characteristics of inductance AC resistance is induced by exploring reasons for the error. Through the corrparison between experimental methods and instrument measurement methods, theoretical calculations and modeling simulations are carried out with electromagnetic field analysis methods. The exploratory experimental teaching process has improved students’ learning interest, cultivated innovation and research abilities through discovering, raising, analyzing, and solving problems, and it is a beneficial attempt to transform a verification experiment to an exploratory comprehensive experiment.

The article discusses a comprehensive project course for sophomore and junior undergraduate students. This course takes campus security as the background and guides students to integrate cloud computing, Internet of Things and mobile application technologies into the security field to build a set of cloud-edge-based security system. The project covers the design and implementation of cloud platforms, edge devices and mobile terminals. The cloud platform is responsible for data storage, analysis and management, including user management, device management, video monitoring and other functions. Edge devices use Raspberry Pi for real-time data processing and decision-making, and connect to terminal devices such as cameras, temperature and humidity sensors, and servos. In addition, a mobile application is developed using WeChat Mini Program to provide users with a convenient usage experience. During the implementation of the project, complex engineering issues such as multi-terminal system data interaction and face recognition driving the steering gear to open and close doors are solved. Furthermore, the article discusses key issues such as data encryption and access control from multiple dimensions, ensuring system security and privacy protection. Through the design and implementation of this comprehensive project course, students’ practical abilities have been enhanced, leading to a deeper understanding and application of cloud-edge technologies.

The course of Applied Optics serves as the cornerstone for majors in optics and optoelectronic information. The conventional pedagogical approach primarily emphasizes in-class instruction, with post-lecture exercises aimed at reinforcing fundamental knowledge points. However, this method offers limited support towards achieving the desired outcome of “solving complex engineering problems” within the engineering certification curriculum system. This paper advocates for a “top-down” teaching model based on engineering project cases, introducing the instructional case of “line scan wide field fundus camera”. It integrates the fundamental principles of each course component into specific optical system modules and key components. Engineering practice cases are utilized to guide the gradual development of each content aspect, fostering students’ adoption of a scientific thinking model. Furthermore, a simulation practice case involving “LiDAR optical transceiver system” is introduced to facilitate practical training in the optical system analysis and design, thereby deepening comprehension of basic principles and enhancing engineering practice proficiency.

In recent years, carbon dots (CDs) with special optical properties and excellent biocompatibility, have become a popular fluorescent nanomaterial in scientific research. Under the guidance of science education integration, the project combines scientific hot spot with undergraduate experimental teaching. Series of experiments are designed to investigate the effects of experimental conditions, such as reactant ratio, reaction mode, reaction duration, product concentration and pH value on the properties of materials. The results show that CDs with good fluorescence properties can be obtained by controlling the ratio of urea and citric acid at 1∶3. The reaction mode is microwave high fire for 2.5~4 min or muffle furnace reaction at 200 ℃ for 1.0 h. In the comprehensive innovation experiment class, the starch-based CDs fluorescent powder can be obtained, by introducing starch substrate into CDs, which is adaptable for the fingerprint detection in multiple scenes. As a result, the scientific innovation which is divergent thinking of students will be cultivated and enhanced, as well as the sense of participation and social responsibility in the field of social security.

Practical teaching is an important way to cultivate diversified and innovative talents. The analytical testing method is a practical course that students of science, engineering, agriculture, medicine and other disciplines must master. The problems existing in the course is pointed out, including outdated content and separation from industrial demand. With the help of the advantages of the public technology platform, a set of “teaching-research-industrialization” trinity practical teaching mode and “two-step method” teaching process is proposed. The teaching subject of the course is transformed from a professional teacher to a public technology service platform, which makes the “practice” feature of the course more obvious. The reform program provides an important way and method to cultivate diversified and innovative talents.

Based on Matlab Robotics Toolbox, only simple simulation and verification can be carried out. It is urgent to design comprehensive innovation experiments to cultivate learning ability and engineering practice ability of students. By integrating computer vision and robot theoretical knowledge, a comprehensive simulation experiment of image contour rendering including image segmentation and edge detection, forward and inverse kinematics, and path planning is proposed. The purpose of the experiment is to cultivate students to solve problems in the field of complex robots, and guide students to form a unique way of thinking in the field of robotics. It has important theoretical significance and practical value for the cultivation of students majoring in robotics under the background of new engineering construction.

For the educational needs of artificial intelligence major, adhering to the principles of associating closely with the theoretical course and reflecting teaching characteristics, the experimental course of Computer Composition and Embedded Systems is expanded and improved. Combining parallel convolution computation in embedded systems with morphological filtering in image processing, a circuit design experiment for morphological filtering parallel computation is designed, which is based on the Logisim simulation platform. By designing both circuits and test image cases of morphological filtering, and comparing and analyzing the characteristic differences of different filtering operations, students can not only integrate relevant knowledge from various courses, but also exercise system design skills. Furthermore, it lays the foundation for learning subsequent courses such as intelligent chips.

A comprehensive rapid inspection experiment for students majoring in quality management engineering is designed. The experiment uses a portable spectrometer to quickly collect sample quality characteristic data, and then uses a quality statistical tool and an intelligent learning algorithm to achieve rapid data analysis and pattern revelation. By irradiating dairy products with a Raman spectrometer, scattering characteristic signals of the samples are obtained, and the data collection for each experimental sample only takes 60 seconds. Feature peaks are selected and quality statistical control analysis tools are uesd to draw a sample quality control chart, which can describe the fluctuation of sample quality. Furthermore, by combining an extreme learning machine algorithm with data preprocessing methods, the rapid identification of sample brands can be optimized, with a recognition rate of 97.3% and an algorithm running time of only 1 s.

In order to cultivate top-notch talents, a experimental system for the course of Fluid Thermophysical Testing Techniques has been developed targeting undergraduate students in the Thermal Fluid International Class. The course includes four experiments: temperature and pressure measurement experiment, saturated vapor pressure measurement and critical phenomenon observation experiment, liquid density measurement experiment, and liquid motion viscosity measurement experiment. These experiments are derived from research experiments on thermophysical properties, with all experimental equipment independently developed. The course provides comprehensive pre-lab preparation, hands-on operation during the experiments, and post-lab analysis, offering a rich learning experience. The high level of student engagement is reflected in their active participation throughout the experimental process. Over the course of five years since its introduction, this experimental course has received consistent praise from students, demonstrating its effectiveness in cultivating outstanding talents.