Taking the distribution of medical institutions in the main urban area of Fuzhou City as the research object, the medical resources in the main urban area were divided into five categories, based on the Point of Interest(POI) data of various medical resources, and using geospatial analysis methods such as kernel density estimation, standard deviation ellipse and geographic detector, the spatial pattern and influencing factors of medical resources in the main urban area of Fuzhou City were analyzed. The conclusions are as follows. The medical resources in the main urban area of Fuzhou are significantly clustered, with the strongest clustering effect in healthcare; At the same time, the distribution of medical resources in the central urban area is uneven, with an overall trend of northwest southeast, and there are significantly fewer medical resources at the boundaries of the urban area. The overall center of medical resources in Fuzhou urban area shifted from that of various types of centers, and there were differences in the degree of center deviation in different medical institutions, and the direction of clinics was the most significant. The spatial heterogeneity of the number of medical institutions in the main urban area is affected by factors such as economy, population, and government support, among which the proportion of the population aged 15~59, 60 and above, and the proportion of government health expenditure have the greatest impact. The distribution of medical resources in Fuzhou is affected by the interaction of multiple factors, and the interaction of each driving factor has a more significant driving effect on the spatial differentiation of resource quantity.

Utilizing data from Fuzhou and Xiamen in Fujian Province from 2013 to 2022, extreme heat waves were employed as the focal point to conduct a comprehensive statistical assessment of vulnerability across three dimensions such as risk exposure, sensitivity and adaptability. Furthermore, the influencing factors of extreme heat waves were examined using geographically weighted regression and geographic detector models. The findings reveal that disparities in geographical environmental conditions and socio-economic development levels between Fuzhou and Xiamen have resulted in varying degrees of extreme heat waves in both cities, with Xiamen demonstrating heightened vulnerability across multiple indicators. The resident population size, level of economic development and green space coverage within urban areas exert significant influence on extreme heat waves. Specifically, GDP and green space coverage yield negative impacts while the resident population yields positive effects. Additionally, financial resources and technological infrastructure also moderately impact the occurrence of extreme heat waves in both cities. Therefore, amidst global climate change and frequent meteorological disasters, optimizing population distribution alongside waterways is imperative along with augmenting urban greening initiatives to enhance vegetation coverage rates while concurrently improving infrastructure construction to ensure economic development aligns harmoniously with ecological benefits.

With the drastic increase of urban population, urbanization rate continues to rise, coupled with the river valley terrain on the urban development of the limitations, Lanzhou City urban traffic congestion situation is intensified. In order to alleviate the pressure of urban traffic, efficient and low-consumption rail transit has been on the stage of Lanzhou city construction. Under the influence of rail transit construction, urban commercial space is bound to change. Combed through the problems of Lanzhou city business and the construction history of rail transit, the construction history of Line 1 and Line 2 was taken as the time line, the law of the impact of rail transit construction on Lanzhou city business space was summarized, and the changes of Lanzhou city business space in the future under the continued improvement of rail transit were predicted.

Based on the panel data of 11 provinces in the western region from 2012—2021, the concept of high-quality development was added on the basis of the existing research, and the index system was constructed in combination with the connotation of agricultural and rural modernization, and the entropy method, Dagum Gini coefficient, kernel density estimation and grey correlation analysis were used to empirically analyze them. The results show that the overall high-quality development level of agricultural and rural modernization in western China shows a positive trend, and there are significant regional differences. The level of economic development, the level of financial support for agriculture and the level of science and technology are the main factors driving the high-quality development of agricultural and rural modernization in the western region. Based on this, feasible recommendations are proposed.

The exploration of geological structures in coal mine plate tunnel based has always been one of the difficulties in mining engineering. Traditional methods such as geological drilling are affected by factors such as groundwater and rock deformation, making it difficult to accurately survey. A new geological structure exploration technology was proposed based on inversion layer control method to address this issue, which was of great significance for improving the level of geological structure exploration technology in plate tunnel based and enhancing mining production safety and efficiency. On the basis of introducing the theory and principles of layer control method, its advantages and characteristics in geological structure exploration were elaborated on, and the specific application process and methods of this technology in geological structure exploration of plate tunnel based were described in detail, mainly including data acquisition, processing, analysis and interpretation processes. The results show that this method can effectively identify and interpret large geological structures such as faults, folds, etc. in the geological structure exploration of the Changping Mine bottom pumping roadway, providing accurate geological basis for the design and construction of the roadway. This technology has strong feasibility and reliability.

With the continuous improvement of infrastructure, the issue of internal damage in the semi-rigid base layer structure of heavy traffic highways is becoming increasingly prominent. Particularly, the maintenance and reinforcement of semi-rigid base layers represent one of the urgent challenges that need to be addressed. Based on the South China Expressway project, the effectiveness of semi-rigid base layer grouting reinforcement was investigated. Five different grouting materials were used to treat the internal structure of the road surface. Three-dimensional ground penetrating radar and a falling weight reflectometer were combined to assess changes in internal damage and load-bearing capacity before and after grouting. Simultaneously, a evaluation system was constructed to assess the internal structure of the road surface treated with grouting,and analyze which grouting material achieves the best reinforcement effect based on indicators such as crack reduction coefficient(CRC), carrying capacity improvement coefficient(CIC) and repair uniformity coefficient(RUC). After evaluation, the grouting reinforcement effectiveness on the internal structure of the road surface by the five grouting materials is as follows: high-strength polymer(with waterproofing agent)>high-strength polymer(without waterproofing agent)>low-strength polymer(with waterproofing agent)>geopolymer>low-strength polymer(without waterproofing agent).

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.

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.

Climate change is currently a key concern in the field of environmental protection. The introduction and implementation of climate change policies are influenced by various factors. Therefore, based on reviewing the development and changes of climate change policies at home and abroad, the impact of energy factor, industry factor and government attitude on climate change policies were explored, and suggestions are proposed for the formulation of climate change policies.

Under the context of open innovation and cross-boundary integration, the study of the impact mechanism of knowledge search on innovation performance, based on a sample of 114 information technology enterprises listed on the ChiNext from 2015 to 2017, is of paramount importance. The findings reveal that exploratory search has a significant positive impact on corporate innovation performance, while exploitative search has a significant negative impact. Furthermore, absorptive capacity fully mediates the relationship between exploratory search and innovation performance, and partially mediates the relationship between exploitative search and innovation performance. These findings suggest that information technology enterprises should strengthen exploratory search and enhance absorptive capacity to optimize their innovation performance.