The deep evolution of the world economy and geopolitics, the complex international situation, and the profound changes in the global energy landscape pose enormous challenges to China’s energy security. The conceptual evolution and evaluation model methods of energy security were outlined. Indicators were selected from the four dimensions of energy availability, accessibility, affordability, and acceptability to construct an energy security evaluation index system. Entropy weight TOPSIS (technique for order preference by similarity to ideal solution) comprehensive evaluation was used to assess china’s energy security situation from 2007 to 2022, and it is found that the overall level of energy security in China is showing a trend of first decreasing and then increasing. In order to improve the level of energy security, countermeasures and suggestions are proposed.

With the increase of existing buildings, the comprehensive renovation of existing buildings plays an increasingly important role in reducing global energy consumption and carbon emissions. By analyzing the passive technology, active technology and renewable energy technology of the existing carbon reduction renovation, the application forms of the three types of technology strategies were summarized, and their differences in carbon reduction benefits in different types of renovation such as office buildings, teaching buildings and residential buildings were compared and analyzed. On this basis, the problems existing in the current low-carbon renovation technology strategies are put forward, which will provide theoretical reference for carbon reduction renovation of existing buildings and related research.

Based on panel data from 11 provinces in the Yangtze River Economic Belt from 2012 to 2021, the impact and mechanism of financial support for agriculture on farmers' income was empirically analyzed using spatial econometric models. It is found that financial support for agriculture has a significant promoting effect on farmers' income through the accumulation of rural human capital, and there is a significant positive spatial spillover effect. Relevant policy recommendations are proposed to expand the scale of fiscal support for agriculture, accelerate the formulation of policy measures based on spatial spillover effects, and improve the efficiency of the use of fiscal support for agriculture funds.

Based on the data of the 11 provinces in the Yangtze River Economic Belt from 2014 to 2022, the development levels of digital logistics and economic resilience were measured. The relationship between the two was analyzed using coupling coordination degree, spatial autocorrelation, and grey relational degree. The research shows that the comprehensive development index of economic resilience is higher than that of digital logistics, but the gap between them is narrowing. As a whole, the degree of coupling coordination has been increasing year by year, and there is a positive spatial correlation. From the perspective of driving factors, the proportion of added value of the tertiary industry has the greatest impact on its coupling coordination degree, and the smallest is the number of internet broadband access. Therefore, it is necessary to promote the coordinated development of digital logistics and economic resilience.

Taking China’s ChiNext listed companies as the research object, the data from 2019 to 2022 was selected to examine the relationship between social responsibility and technological innovation on firm performance, and the changes of this relationship between private and non-private enterprises was explored. The results show that there is a significant positive correlation between corporate social responsibility and corporate performance.There is an obvious positive correlation between technological innovation and firm performance.The higher the level of technological innovation of the enterprise, the stronger the positive correlation level of its social responsibility to the performance level of the enterprise. Compared with non-private enterprises, private enterprises can promote the relationship between the three more. The research conclusions can serve as a reference for the formulation of strategic decision-making for enterprises.

Data trading is an important form of data elements circulation. By constructing an evolutionary game model of “data trading platform - data providers - data demanders,” it is revealed that the data trading market exists in three equilibrium states: non-cooperation, inefficiency, and ideal. A higher initial willingness for technological innovation by the platform, a reasonable profit distribution coefficient, and a lower loss of competitive advantage can promote the system to evolve towards an ideal equilibrium state; whereas high data prices and technological innovation costs can lead the system into a state of non-cooperation or inefficiency. Therefore, the development of the data trading market can be promoted by enhancing the awareness of the subjects, establishing a fair and reasonable profit distribution mechanism and data product pricing, and supporting technological innovation in the platform.

Vibrations generated by subway train operations have the potential to adversely affect the normal use of precision instruments within laboratories. In order to analyze the current state of vibration response at a laboratory site proposed to be built along the subway line, a study was conducted to test environmental vibrations and train-induced vibrations at the site. An integrated seismograph was used to verify the accuracy of conventional velocity sensors at low frequencies. The results indicate that the 941B velocity sensor demonstrates good accuracy for frequency bands above 0.6 Hz, which meets the vibration measurement and evaluation standards based on VC vibration criteria. When considering the comprehensive impact of environmental vibrations within a determined period, the current site’s vibrations are at a relatively low level, essentially satisfying the vibration requirements for most general-purpose equipment and the vast majority of precision instruments. Moreover, the ambient vibrations can significantly increase under the influence of certain instantaneous external vibration sources, but these effects are mostly within the 10 Hz or higher frequency bands. When a subway train passes, there is an increase in vibrational energy near 50 Hz, which is relatively favorable for passive vibration isolation.

With the slowdown of social and economic development and the solidification of social classes, young people in China are also facing severe multidimensional poverty. Based on the CFPS(China Family Panel Studies)2020 data, the AF(Alkire-Foster) method was used to construct the youth multidimensional poverty index through the dimensions of income status, education access, health level, living conditions, social exclusion and subjective well-being, and the relationship between Internet embeddedness and youth multidimensional poverty was explored. It is found that Internet embedding can significantly improve the multidimensional poverty situation of young people, and can indirectly achieve poverty alleviation by promoting the accumulation of social capital.

In recent years, the medical radioisotope industry has been developing rapidly, the total amount of medical radioactive articles transported in China has increased, and the regulatory authorities have paid more attention to the safe transportation work. The national regulatory requirements and the current status of the use of type A package for the transportation of Class II radioactive articles for medical use in China, the design requirements and precautions for the package, the analytical demonstration and experimental verification of the package, as well as the approval of the design and manufacturing record were introduced. Some suggestions are put forward based on the current problems, hoping that the containers for the transportation of medical radioactive articles become more standardized, unified and safe, and promote the high-quality development of the medical radioisotope industry.

Digitalization and greening are the two major trends of the new round of scie.jpgic and technological revolution and industrial change, and they are also two epochal characteristics of the new quality productivity. Based on the panel data of A-share listed companies in Shanghai and Shenzhen from 2012 to 2022, how digital transformation of enterprises empowers green innovation was studied. It is found that there is a significant promotion effect of digital transformation of enterprises on green innovation, which is more obvious for state-owned enterprises, low-financing enterprises, high-technology enterprises, non-resource city enterprises, enterprises in heavy pollution industry, and large-scale enterprises. The results of the mechanism of action suggest that digital technology can improve green innovation capacity by enhancing the transparency of corporate information and increasing R&D investment.