A new depsidone derivative botryorhodine J (1), along with six known compounds (2–7) were obtained from solid rice cultures of Alternaria alternata Pas11 that was isolated from leaves of Phragmites australis. The structure of the new compound was elucidated on the basis of combination of NMR spectroscopic data and high resolution mass spectrometry (HRMS). All the isolated compounds were evaluated for their antibacterial activities against a panel of Gram-positive bacterial strains (methicillin-resistant Staphylococcus aureus [MRSA], Bacillus subtilis and S. aureus). Compounds 1 and 6 displayed antibacterial activity against the three bacterial strains with the minimum inhibitory concentration values (MICs) of 14 – 32 μg/mL, while compound 5 showed good antibacterial activity against above bacterial strains with MIC values of 5 – 8 μg/mL.

It is necessary for English teachers to grasp the causes of students' language anxiety and explore ways to avoid, reduce, and eliminate students' anxiety. This paper discusses the foreign language anxiety of college English teachers in classroom teaching, its possible causes, teachers' awareness of anxiety, and countermeasures. This paper introduces the composition of student affairs analysis system from data layer, analysis layer, application layer, and display layer and combines data warehouse and data mining technology to improve the functions of student information, teacher information, achievement information, course selection information, and course evaluation. On the premise of data mining and data information management, it realizes the construction and application of teaching management data analysis system, using classification model. Apriori algorithm improves the algorithm, uses big data technology to analyze data and design courses, and analyzes the inherent relationship between mental health problems and attributes.

Abstract Promoting the integrated development of both rural and urban locations in the context of new urbanization is a major strategic initiative for comprehensively building a socialist modernized country and achieving coordinated development across regions. The first section of this essay focuses on the significance of modern urbanization and urban-rural combined development, as well as their interactions and internal dynamics. Second, using the province of Henan as an example, it constructs an indicator evaluation system, calculates indicator weights using the entropy value method, and analyzes the development comprehensive evaluation index in order to assess the degree of new urbanization and urban-rural integration development. In the end, a coupling degree of coordination model is constructed to examine the coupling cooperation between new urbanization and urban-rural combined development. Specific suggestions are given to innovate institutional systems that promote urban-rural integrated growth in Henan Province. The overall urban-rural integrated Henan Province’s development index exhibits an upward trend between 2010 and 2020; the comprehensive index increased from 0.1548 to 0.8628, with an average annual growth rate of almost 23.84%.In Henan Province, the value of coupling among the two systems of new urbanization and urban-rural integrated development has grown from 0.932 to 0.985, which is at a high degree of coupling. Urban-rural interaction will be realized, and the efficiency of urban-rural coordinated growth will be increased if the urban-rural built development approach in Henan Province is implemented based on local conditions, scientific positioning, and accelerating the melding of production and urbanization.

A possible approach to addressing the challenges of energy scarcity and the effects of global warming through the decrease of greenhouse gases is the manufacture of hydrocarbons, particularly fuel from the photoreduction of CO2. Here, the determination of activity/selectivity of produced hydrocarbons, hydrogen, and oxygen in the gas phase was demonstrated in the absence and presence of O2 in an aqueous slurry on TiO2. The conversion increases with reaction time up to the first hour but then begins to become unchanged in the presence of oxygen, suggesting catalyst deactivation. In contrast, the reaction rate and CO2 conversion increased over 4 h when there was no oxygen, demonstrating that oxygen can be the cause of TiO2 deactivation. Intriguingly, light-induced O2 uptake rather than evolution was seen during optical oxygen detection investigations in photoreactions with a peak region of O2/CO2. H2 production is suppressed by the presence of oxygen. Additionally, the sudden increase in hydrogen generation when oxygen is absent demonstrated that oxygen consumption and hydrogen production are taking place at the reduction site. The availability of oxygen reduced hydrocarbon productivity and H2 production.

At the present stage, the degree of social information intelligence continues to increase, electronic information technology has been widely used in various industries, has become an important part of People's Daily life. Electronic information technology can also promote the development and progress of enterprises, most of the enterprises have begun to use electronic information technology in the process of development, it can be seen that the electronic information technology has considerable prospects for development, this paper analyzes the construction engineering enterprises for the use of electronic information technology, hoping to provide a certain reference to the relevant personnel. The paper firstly reviewed the classic newsvendor model and expounded the establishment and solution to the model. Then the model of the supply chain system was established based on the classical newspaper model. Finally, based on the basic theory of repurchase contract, a repurchase agreement was established. The supply chain buyback contract under the newsvendor model can not only realize the coordination of supply chain, but also realize the distribution of profit in the supply chain.

INTRODUCTION: Based on TOPSIS (Technological Ordering of Superiority and Inferiority) and entropy weight method, it aims to evaluate the quality of intelligent classroom English teaching. The brilliant classroom teaching model has attracted much attention for its highly interactive, personalized, and real-time feedback features; however, how to accurately evaluate the quality of intelligent classroom teaching remains a challenge.
 OBJECTIVES: To combine the TOPSIS and entropy weight methods in practical application and consider the index ordering and weight calculation comprehensively to arrive at the quality evaluation results of each brilliant classroom teaching.
 METHODS: The TOPSIS method is first used to rank multiple indicators of teaching quality to determine the optimal teaching quality. The TOPSIS method can consider the interrelationships between the hands and find the solution closest to the positive ideal solution and farthest away from the negative perfect solution by calculating each indicator's positive and negative perfect solutions. Then, the weight of each hand is calculated by combining the entropy weight method. The entropy weight method can consider the indicators' information and differences and measure the degree of their contribution to the evaluation results by calculating the entropy value of the hands.
 RESULTS: The results show that the method can comprehensively consider the correlation and weight of multiple indicators, provide teachers and educational administrators with accurate teaching quality evaluation and improvement suggestions, and thus promote the optimization and enhancement of innovative classroom teaching.
 CONCLUSION: By analyzing the actual smart classroom teaching data, the Author found that the method can effectively evaluate the quality of intelligent classroom teaching and provide valuable guidance for English teaching improvement.