With the development of the economy, people's living standards continue to improve, and they have a certain amount of time to improve themselves and cultivate their interests and hobbies. Tennis is a sport and people's attention to it is constantly increasing. In this study, we analyzed tennis match data to answer various questions related to tennis. Firstly, in response to the first question, we constructed a model to capture the game process and evaluate the performance of players. By preprocessing and analyzing the data, including eliminating outliers, filling in missing values, and standardizing the data, we obtained prepared analytical data. Subsequently, using principal component analysis, three representative principal components were identified. In addition, by using the entropy weight method, we calculated the weights, enabling us to derive a momentum formula for visualizing the temporal changes during the competition process. Secondly, regarding the second question, we explored whether there is a correlation between the game results and momentum. By using the momentum model we established, we used Pearson correlation analysis to calculate the correlation coefficient, thereby determining the relationship between momentum and game results.

In this study, we analyzed tennis match data to answer various questions related to tennis. Firstly, we constructed a model to capture the process of the game and evaluate the performance of players. By preprocessing and analyzing the data, including eliminating outliers, filling in missing values, and standardizing the data, we obtained prepared analytical data. Subsequently, using principal component analysis, three representative principal components were identified. In addition, by using the entropy weight method, we calculated the weights, enabling us to derive a momentum formula for visualizing the temporal changes during the competition process. Secondly, we explored whether there is a correlation between match results and momentum. By using the momentum model we established, we used Pearson correlation analysis to calculate the correlation coefficient, thereby determining the relationship between momentum and game results.

Big data in education has become a driving force for educational transformation and innovation, emerging as a prominent area of focus in educational technology research. In the context of big data in higher education, student performance analysis is a key issue that has garnered significant attention from researchers and institutions alike. This review provides a systematic overview of student performance analysis from the perspective of educational data mining. The process of student performance analysis is categorized into three steps: the acquisition and preprocessing of educational big data, methods for analyzing student performance, and the visualization and application of data analysis results. Various methods for student performance analysis and their applications are introduced in detail, summarizing existing research and providing insights into future research directions.

 Since the 1970s, road disease detection at home and abroad has become a research hotspot. Intelligent detection of road diseases can effectively reduce traffic safety accidents and maintain social safety. Based on R-CNN and YOLO models, our team innovatively proposed a detection method of many algorithms, which further improved the detection efficiency. In terms of hardware, micro high-speed industrial camera, LPMS series and iAHRS-MO attitude sensor are adopted. At present, the team has completed a complete set of detection methods and structures, which can adapt to many future needs and changes.

College students are in a special period of physiological and psychological development and maturity. With the increasing pressure of learning and life, parent-child conflicts often occur, and poor communication can make parent-child conflicts more serious. Painting therapy uses painting as a medium to communicate with the individual's subconscious, thereby improving emotional disorders and repairing parent-child relationships. This study takes a female college student as an example. Through painting therapy, she learns self relaxation methods, assists her in mastering mandala painting therapy for self-awareness, alleviates parent-child conflicts, improves parent-child relationships, promotes reasonable self-awareness and self-acceptance, and promotes individual mental health and development. At the same time, exploring individual interventions in parent-child conflicts can also enrich research on painting therapy.

The purpose of this study is to investigate and analyze the current situation of college students' self-efficacy in entrepreneurship, and propose improvement and enhancement strategies. The research scale is the Entrepreneurial Self Efficacy Scale. The research method involves conducting a survey on 160 participants, all of whom are students from Hebei Normal University, Hebei University of Economics and Trade, and Shijiazhuang College. SPSS 22.0 is used to conduct independent sample t-tests and ANOVA one-way analysis of variance on the data. And there is also an entrepreneurship interview in this study, involving four graduates of college entrepreneurs. The research conclusion is as follows:1, with a mean of 5.01, the score of entrepreneurial self-efficacy among college students in Shijiazhuang is at a moderate level. 2, There are significant differences in scores among college students at four different levels of total annual household income. 3, There is a significant difference in scores between college students with and without entrepreneurial experience. 4, Whether or not one works as a student cadre during their school years has no impact on their scores.

This document describes in detail the design and modeling scheme of the towering tower structure in the seventh national college students' structural design competition in Hebei Province. For the towering tower structure with horizontal vibration, this paper firstly interprets the competition problem and clarifies the design requirements and loading conditions, including three levels of loading: horizontally excited vibration, hydrostatic calm load and horizontally excited vibration of higher frequency and amplitude. Subsequently, the final model scheme was optimized and determined through material performance testing, component design and testing, structural modeling and analysis. In terms of materials, bamboo veneer and bamboo strips were used as the main materials in this paper, and their mechanical properties were tested in detail. The structure was modeled and analyzed by Midas finite element software, and the strength, stiffness and stability of the structure were comprehensively evaluated. During the modeling process, the focus was placed on the connection method of nodes, material treatment and detail construction to ensure that the model can safely carry and meet the design requirements during actual loading. After several rounds of design optimization and loading tests, the model of the towering tower structure in the form of truss structure is finally determined, and the model shows good force performance and load carrying capacity at all levels of loading conditions. The whole process of model design, fabrication and testing is recorded in detail in this paper, which provides valuable experience for the design of similar structures.

Objective To investigate the effects of wogonin on the proliferation and migration of nasopharyngeal carcinoma cells C666-1 and HK-1. Methods The inhibitory effect of wogonin on nasopharyngeal carcinoma cells C666-1 and HK-1 was determined by CCK8 assay, and IC50 was calculated. The effects of wogonin on the proliferation and independent viability of nasopharyngeal carcinoma cell C666-1 were investigated by plate colony formation test. The effects of wogonin on the migration ability of nasopharyngeal carcinoma cells were studied by scratch test and Transwell migration test. Results The results of CCK8 experiment showed that wogonin significantly inhibited the activity of C666-1 and HK-1 cells, and the inhibitory effect increased with the increase of drug concentration. Under the same drug concentration, the inhibitory effect for 48 h was higher than that for 24 h, and the inhibitory effect was dose-time dependent. The IC50 values of wogonin treated C666-1 cells were 37.15 μmol/L for 24 h and 20.75 μmol/L for 48 h. The IC50 values of HK-1 cells treated with wogonin were 29.09 μmol/L for 24 h and 20.46 μmol/L for 48 h. The results of plate colony experiment showed that after the intervention of wogonin, the number of visible colonies of nasopharyngeal carcinoma cells C666-1 was less and the volume was smaller. Scratch test and Transwell migration test showed that the migration ability of C666-1 and HK-1 cells was significantly inhibited, and the higher the drug concentration, the stronger the inhibition effect. Conclusion Wogonin can inhibit the activity, proliferation and migration of nasopharyngeal carcinoma cells.

Background: Exosomes derived from plant embryo cells have emerged as key players in mediating stress responses in plants. This study investigates the functional roles of exosomes from Arabidopsis thaliana embryo cells in enhancing plant tolerance to drought and salinity stress. Understanding these roles could lead to innovative applications in agriculture for improving crop resilience.

Methods: Exosomes were isolated from Arabidopsis thaliana embryo cells using ultracentrifugation. The characterization of exosome cargo included proteomic and lipidomic analyses to identify key molecules involved in stress responses. Plant stress tolerance was assessed through exosome treatment under controlled conditions of drought and salinity. Parameters such as relative water content (RWC), chlorophyll content, and expression levels of stress-responsive genes (DREB1A, RD29A) were measured to evaluate the effectiveness of the treatment.

Results: Exosome treatment significantly improved plant tolerance to drought and salinity, evidenced by increased RWC and chlorophyll levels compared to untreated controls. Molecular analysis revealed that exosomes contained bioactive molecules, including small RNAs and stress-related proteins, which were associated with the upregulation of stress-responsive genes. The findings suggest that exosomes enhance stress tolerance by delivering regulatory molecules that activate stress response pathways.

Conclusions: The study highlights the potential of exosomes derived from plant embryo cells to improve plant resilience against environmental stressors. The integration of exosome-based technologies in agriculture could provide a sustainable approach to enhancing crop performance under adverse conditions. Future research should focus on optimizing exosome production and assessing their efficacy in field settings to fully leverage their benefits in agricultural practices.