As artificial intelligence becomes increasingly integrated into daily life, particularly in areas such as urban transportation and environmental impact, the potential for widespread adoption of autonomous vehicles has become a significant topic of inquiry. Online surveys and statistical analysis were conducted to examine the influence of media environments (mass media, social media, and electronic word of mouth) on the purchasing intentions for autonomous vehicles, while also considering the moderating role of gender. The results indicate that social media has a positive effect on purchasing intentions, especially among male users, whereas mass media and electronic word of mouth do not show significant effects. These findings provide insights into how different media environments can affect the market acceptance of autonomous vehicles, offering important references for the development of urban transportation and sustainable social practices.

Based on the panel data of provinces from 2011 to 2021, the relationship between digital economy and urban-rural income gap was explored. It is found that the impact of digital economy on the income gap between urban and rural residents has a significant “U”-shaped feature, and this impact has regional heterogeneity. It is obvious in the eastern and central regions, while in the western region, the development of digital economy helps to reduce the income gap between urban and rural residents. In addition, tax revenue plays a positive regulatory role in the “U”-shaped impact of the digital economy on the income gap between urban and rural residents, delaying the expansion of the income gap. The conclusion points out how policy makers should formulate and adjust policies in different regions to promote the balanced development of social economy by using the development of digital economy.

Through in-depth analysis of the three dimensions of input, output and development environment, the evaluation index system of integrated development of culture and tourism in the five provinces in northwest China was constructed, and the level of integrated development of culture and tourism in the five provinces from 2011 to 2021 was measured. The weight of each index was used to determine the combination assignment. The results show that the integrated development of the cultural and tourism industry in the five northwestern provinces is less synchronised and mostly dominated by cultural lag. In addition, there is no equivalence between the integrated development of culture and tourism industry and regional economic level and resource abundance, and the overall development level is not high. On the whole, most of the integrated development level of culture and tourism in northwest China is unbalanced, the allocation of factor resources still needs to be adjusted, and the industrial structure needs to be transformed. Therefore, in order to promote the prosperous development of cultural undertakings and tourism in northwest China, it is necessary to taken more effective measures to improve the integrated development level of culture and tourism.

Taking 75 prefecture-level cities (or districts) across eight provinces in the Yellow River Basin from 2006 to 2022 as the research object, green technological innovation and ecological economy evaluation indicators were constructed. The coupling coordination degree and spatiotemporal evolution characteristics of these two factors were analyzed using the coupling coordination model, kernel density estimation, and Moran’s I index. The results show that the coupling coordination level between green technological innovation and ecological economy has increased, with significant regional differences. The coupling coordination disparity between regions has gradually decreased, indicating a trend toward balanced development within the basin. Positive spatial autocorrelation exists between green technological innovation and ecological economy, but this agglomeration effect has weakened over time. These findings suggest that the Yellow River Basin’s development is becoming more coordinated, although regional disparities remain.

In order to study the mechanical properties of Changxin epoxy binder used in Yangjiang Port Bridge, its performance under tensile strength, tensile strength, shear strength and other conditions were evaluated through a series of experimental and theoretical analyses. The research includes the preparation process of binder, mechanical property testing, failure analysis and performance comparison with Japan TAF epoxy binder. The results show that Changxin epoxy binder exhibits excellent mechanical properties and stability in steel bridge deck pavement, which provides a strong guarantee for the long-term use of Yangjiang Port Bridge.

In the process of the formation of new quality productive forces, four technologies play crucial roles. Information technology is the innovation-leading technology. New industrialization technology is the foundation-building technology.Financial technology is the efficiency-enhancing technology. Green technology is the quality-oriented technology. At present, the information revolution has developed to the stage of qualitative change, where data has become a new factor of production, and the production of knowledge and information has entered the stage of mechanized large-scale industry from manual workshops. The proposal of new quality productive forces is a scientific observation and summary of the progress of the information revolution to the stage of qualitative change. Through the analysis of the key technologies of new quality productive forces, the implication of “new” and “quality” in the phrase of new quality productive forces can be understood more clearly.

In order to explore the mechanical characteristics of shield tunnels passing through different soft-hard uneven strata, a three-dimensional refined shield tunnel numerical model considering the contact effect of ring longitudinal bolt joints and segment-soil was established, and its feasibility were verified by comparing the measured data. Then, aiming at the complex ground conditions of upper soft-lower hard, upper hard-lower soft, and longitudinal soft-hard uneven strata, the influence of different strata composite ratios on the internal force, convergence deformation and vertical settlement of shield segment structure was deeply explored. The results show that with the increase of strata composite ratio, the bending moment of tunnel bottom in upper soft-lower hard strata decreases greatly, the vertical settlement of segment increases slowly and then rapidly, and the convergence deformation of segment increases linearly. Compared with the upper soft-lower hard strata, the vertical settlement response of shield segment in the upper hard-lower soft strata is more sensitive under the same composite ratio. When the tunnel lies in the longitudinal soft-hard uneven strata, the extreme value and extreme difference of the longitudinal bending moment of the segment and the shear force increase with the increase of the strata composite ratio. The convergence deformation of the segment is larger on the hard soil side than on the soft soil side.

Energy price is a key market signal, and their fluctuations have profound impact on national economic development and business operations. To accurately predict future price trends and master cutting-edge energy price forecasting models, a systematic review of relevant research was conducted. First, the distinction between in-sample fitting and out-of-sample prediction was clarified. Second, traditional econometric forecasting models was summarized. Finally, advanced artificial intelligence models was organized from the perspectives of input variables, forecasting methods, and forecasting frameworks. Based on the research review and current trends, there are two future directions worth attention: first, the use of integrated feature selection methods to construct stable feature subsets, and second, the introduction of mixed-frequency methods to improve the accuracy of real-time predictions.

Developing new quality productive forces is an inherent requirement and an important focus for promoting high-quality development. Based on the perspective of peer group effects, the industry peer group effects of the development level of new quality productive forces for A-share listed companies in China from 2011 to 2022 were examined. It is found that there is a significant peer group effect in the development of new quality productive forces in the industry-based peer group classification standard. In terms of the formation mechanism, the learning mechanism and competition mechanism are the main reasons for the peer group effect of new quality productive forces. The heterogeneity analysis shows that the new quality productive forces level of peer group enterprises can better promote the development of focal enterprises in the environment of state-owned enterprises and medium-level marketization process.

Various types of sedimentary deposits are widely distributed in the mountainous areas of northern Guizhou, among which landslide deposits are the most common. A landslide deposit on the inner side of a highway in the region was analyzed. The mechanism and evolution mode of rainfall disasters in the deposit was studied through refined investigation and measurement, numerical simulation and other techniques. The landslide accumulation body was affected by multiple rounds of rainfall in the early stage, and the shallow surface of the slope has experienced multiple local instability and damage, resulting in cracks in the mortar retaining wall, burial of the concrete retaining wall, severe damage to the road surface structure, and difficulty in passage. Under later rainfall conditions, there is still a possibility of local instability or even overall instability. The numerical simulation results of rainfall show that the accumulation body is in an unsaturated state in its natural state. Continuous heavy rainfall will promote the development of the soil from unsaturated to saturated state. During the rainfall process, the transient saturation zone gradually expands and deepens from the slope surface, and by the end of the rainfall, the entire slope soil body has almost reached saturation state. Affected by the water barrier effect of bedrock, infiltrated rainwater collects at the interface between the foundation and the cover, and pore water continuously migrates towards the foot of the slope under the action of gravity, resulting in high pore water pressure at the interface and foot of the slope. On the one hand, the lubrication and softening of gravel soil by pore water promote the structural weakening and mechanical strength attenuation of the soil. On the other hand, high pore water pressure plays a role in reducing the effective stress of the soil, resulting in a decrease in the anti sliding force of the slope, which in turn leads to overall sliding along the foundation cover interface. However, the process of accumulation body developing into landslide under heavy rainfall can be divided into four stages, namely: ①full rainfall infiltration, ②partial saturation of slope surface, ③expansion of saturated area, local instability, ④overall instability and damage. In the early stage, multiple local instability and damage only developed to stage ③. In the later stage, if such heavy rainfall or even extreme rainstorm occurs, the colluvial accumulation body is very likely to have overall damage, which will cause complete road blocking and threaten pedestrians and vehicles in the process.