The competency of civil airport security manager is very important to train and build a high quality control team. According to the characteristics of civil airport security management, the evaluation index system of the competency of civil airport security manager was constructed. Considering that traditional weighting methods were affected by subjective factors of evaluation experts, the OWA operator was used to determine the weight of evaluation index. Because of the incompatibility and uncertainty of evaluation index, the matter-element model was introduced to evaluate the competency of civil airport security manager. The case study shows that the matter-element evaluation method can make full use of index information and objectively evaluate the competency of civil airport security managers, which has important theoretical guiding significance for improving the competency level of civil airport security managers.

Based on the relevant theories of product packaging design and ecological environmental literacy, the current situation and influencing factors of product packaging design of fruit juice drinks were investigated and studied, and the impact of consumers’ ecological environmental literacy on consumption behavior was analyzed. It is found that the enterprise has taken moderately and creative packaging strategy for fruit juice beverage sales has positive significance in promoting. Different factors, such as gender, urban-rural difference, consumption concept, consumer psychology and advertising content, all have different effects on product packaging strategy. The consumption concept of green environmentalism has a positive guiding effect on product packaging design.

At present, the scale of China-ASEAN trade cooperation has expanded, and its impact on China’s carbon emissions should not be underestimated. The LMDI method was used to study China’s carbon emissions from 2013 to 2022 using China-ASEAN trade as an influencing factor. The results show that the energy carbon emission intensity effect, the import trade effect of China and ASEAN, the economic development level effect, the terms of trade effect and the population size effect are the factors that promote carbon emissions. The energy intensity effect and the counter-effect of China-ASEAN export trade are the factors that inhibit carbon emissions. In order to reduce the impact of various factors on carbon emissions, it is necessary to optimize the industrial structure, develop and use energy-saving technologies, improve the terms of trade between the two sides and optimize import trade.

With the continuous innovation of agricultural modernization and digitalization technologies, the construction of digital agriculture has become a core topic for agricultural development. Based on the sample data of 31 provincial models(due to the lack of data, the statistical data mentioned here do not include the Hong Kong Special Administrative Region, the Macao Special Administrative Region and Taiwan Province)from 2011 to 2022 in China, the entropy weight method was used to measure the index of China’s digital agriculture construction level and an empirical analysis was conducted to verify the impact of fiscal support for agriculture on digital agriculture construction. Furthermore, the mechanism of how the agricultural technological environment affected digital agriculture construction was explored and the threshold effect of urbanization rate was examined. The study finds that fiscal support for agriculture can significantly promote the level of China’s digital agriculture construction, and this conclusion holds in various robustness tests. Moreover, the agricultural technological environment positively moderates the development of digital agriculture in China. The exploratory analysis shows that fiscal support for agriculture has a particularly significant promotion effect on the digital agriculture construction of the eastern region. The threshold effect analysis reveals the differential impact of urbanization rate on digital agriculture construction. The interactive relationship and future trend between fiscal support for agriculture and digital agriculture construction are summarized, and development suggestions of strengthening policy coordination, promoting technological innovation, and promoting deep integration of agriculture and digitalization are put forward, aiming to provide reference and guidance for the sustainable development of China’s agriculture.

The western part of Liaoning province is rich in tourism and leisure resources, and has great geographical advantages for the Beijing-Tianjin-Hebei, but there are some problems such as unclear market positioning, lacking brand construction, insufficient promotion, incomplete infrastructure and supporting facilities and so on. Based on the actual needs of tourism in the Beijing-Tianjin-Hebei region, a strategic layout and positioning was made to strengthen the plan and construction of tourism, comprehensively improve infrastructure, accelerate the construction of landmark major projects, create high-level scenic spots and boutique routes, using culture to support the development of tourism in western Liaoning, creating a boutique brand system, continuously improving publicity and promotion methods and scope to assist the construction of tourism destinations in western part of Liaoning province towards the Beijing-Tianjin-Hebei region.

Accelerating the orderly transfer of the manufacturing industry holds significant strategic importance for enhancing the level of new urbanization in the middle and upper reaches of the Yangtze River Economic Belt to achieve coordinated development. Based on the Spatial Durbin SDM model, the impact mechanism of the transfer of the manufacturing industry in the middle and upper reaches of the Yangtze River Economic Belt was analyzed from 2011 to 2022 on new urbanization. The results demonstrate spatial negative autocorrelation between the transfer of the manufacturing industry and urbanization in the middle and upper reaches of the cities, indicating that excessive undertaking of industrial transfer may have adverse effects on local urbanization. Further analysis reveals that due to regional heterogeneity, the negative spatial spillover effect of manufacturing industry transfer on urbanization is more significant in the middle reaches than in the upper reaches.

In order to promote the high-quality development of the six provinces in the central region, the comprehensive evaluation indexes of the three major systems of population, economy and resources and environment in the central region were firstly measured, then the spatial and temporal evolution patterns were analyzed through the construction of the coupled coordination model of the three systems and the three time sections were selected, and finally the obstacle degree model was used to explore the main influencing factors of the coordinated development of the coupled systems. The results show that the comprehensive evaluation scores of the population and economic subsystems are generally on the rise within the study interval, and the level of coupled coordination is also steadily increasing. The resource and environment subsystem is an important constraint on the coordinated development of the three systems in the central region, and the per capita liquefied petroleum gas consumption is the main obstacle factor.

In practical operation, GIS mechanical failure is a major cause of accidents. In recent years, the proportion of accidents caused by mechanical failures has gradually increased. However, there are few reports in existing research on the specific process of mechanical failures, how to effectively handle such failures, and how to prevent accidents caused by them. A chain accident caused by a mechanical failure of a GIS equipment isolation switch was introduced. Taking the chain accident of two consecutive trips and two main transformers losing power in sequence caused by mechanical problems of the isolation knife switch in the GIS composite electrical equipment of a 110 kV substation as an example, through the investigation and analysis of the operating mode, protection action, and unpacking inspection results before the GIS fault, the occurrence process of this accident was depicted, and the analysis results of this accident were given. Corresponding rectification suggestions are proposed, providing a typical basis for the production, installation and operation of GIS equipment.

Adjusting industrial structure to improve regional environmental performance is an important means for the government to promote local environmental protection. Taking 30 provinces in China(due to the lack of data, the statistical data mentioned here do not include the Tibet Autonomous Region, the Hong Kong Special Administrative Region, the Macao Special Administrative Region and Taiwan Province) as case studies, fuzzy set qualitative comparative analysis (fsQCA) was used to explore the impact of their configuration effects on regional environmental performance from four dimensions: industrial structure upgrading, rationalization, specialization and diversification. The findings are as follows. ①Regional environmental performance has the characteristics of “reaching the same destination”, that is, two different condition configurations can achieve high regional environmental performance. There are two driving mechanisms to achieve high regional environmental performance, namely, the industry-professionalization-oriented model and the industry-professionalization-rationalization model. ② None of the four dimensions of industrial structure can be regarded as the core condition for producing high regional environmental performance alone, but the specialization of industrial structure plays a more universal role as the key condition. It has further enriched the theoretical system of the relationship between industrial structure and environmental performance, and the research conclusions can provide decision-making reference for various regions to formulate scientific and reasonable industrial structure adjustment policies to improve regional environmental performance.

High tech enterprises are an important driving force for promoting high-quality economic development, and in a sense, they are a reflection of a country’s economic strength. The article focuses on the financing model of high-tech enterprises, Contemporary Amperex Technology Co., Limited(CATL) as a typical case, and studies the financing status and changes in financing channels of high-tech enterprises from the perspective of the life cycle. It deeply explores the diversified models of high-tech enterprises in the financing process. The financing experience of CATL shows that diversified financing channels, flexible financing strategies, and good corporate governance structures are crucial for the rapid growth of high-tech enterprises. In addition, the article analyzes the characteristics and shortcomings of its financing model, and proposes relevant suggestions such as diversified financing, optimizing structure, strengthening cooperation with government and financial institutions, and seeking new financing channels. The conclusion of the article provides reference financing models and strategic suggestions for other high-tech enterprises, which has certain practical significance and theoretical value.