Land-use change is an important part of global change and has a profound impact on the value of ecosystem services. Based on the land use data of 2010,2015 and 2020 in Dingbian County of Yulin City, the time and space was analyzed, the change of ecosystem service value was evaluated by equivalent factor method, and the spatial distribution characteristics was studied by Arcgis spatial analysis. The results show that the main land types in Dingbian County are cultivated land and grassland, in which the area of cultivated land and grassland is continuously decreasing, and the area of water area and construction land is increasing, and the degree of change of single land use type is shown as follows: water> construction land> wetland> grassland> woodland> cultivated land>unused land. ESV(ecosystem service value) from 2010 to 2020,2020 increased by 181 million yuan over 2010, in which the ESV increment of water is more significant, and the ESV of cultivated land and grassland decreases more. From the perspective of individual ESV, climate regulation and hydrological regulation are mainly used.

Aiming at the complex geographical conditions of the mountainous rivers flowing through the region, which leads to the difficulty of the control measurement of waterway improvement, combined with the implementation of the control measurement of waterway improvement in Zigong section of Tuo River, the layout of control points analysis, selection of coordinate systems, and selection of methods for plane and elevation control measurement were conducted. Based on the characteristics of mountainous waterways, the optimal method for layout and measurement of plane coordinate systems is proposed. The research results can provide important references and inspirations for the subsequent control measurement of long river channel regulation in mountainous areas, which will promote the smooth implementation of long river channel regulation in mountainous areas.

With the frequent occurrence of public health emergencies and the increasing aging of society, the risk of public health emergencies in aging communities is also increasing, which brings great impact to the elderly group. In order to ensure the health and safety of the elderly population and the sustainable development of the aging community, a scientific, efficient, comprehensive and sustainable strategy for the aging community to cope with public health emergencies was provided. According to the three pillars of “health” “participation” and “security” in the framework of active aging, the aging community’s response to public health emergencies was analyzed, and the PDCA(plan-do-check action cycle) optimization framework for coping strategies of public health emergencies in aging communities was constructed from the perspective of active aging, and the corresponding optimization path is proposed accordingly. The PDCA cycle was integrated into the whole process of aging community response to public health emergencies, and it is constantly evaluated and optimized.

Lowering carbon emissions from tourism transportation is an important way to achieve the “dual carbon” goals. Based on spatial autocorrelation theory and the spatial Durbin model, a study was conducted on the spatiotemporal evolution and spatial spillover effects of carbon emissions from tourism transportation nationwide. The results indicate that from 2012 to 2020, the GDP of the tourism industry showed a good overall spatial autocorrelation, with industrial structure, green travel rate, and urbanization rate being the most influential factors on carbon intensity in tourism transportation. In terms of spatial spillover effects, there is a strong negative correlation between regional economic development levels and green travel rates with carbon emissions, while the spillover effects of urbanization rate show a contrary direct effect, demonstrating a positive effect, which indicates that the carbon reduction achieved with the increase in urbanization level has a marginal effect. Factors such as regional economic levels and advancements in environmental technology are also important means of reducing carbon intensity in tourism.

Based on the development of the digital economy and the uncertainty of demand information in the equipment manufacturing supply chain, the impact of government subsidies on the information sharing strategy under the equipment manufacturers quality innovation was explored. The price and quality innovation decision models for non information sharing and information sharing were established and solved, and the model results were analyzed. Results show that retailers sharing optimistic demand can definitely motivate equipment manufacturers to improve product quality, but it may not necessarily increase wholesale and retail prices at the same time. Moreover, it is only when government subsidies are high that it helps to increase the actual demand for products. Equipment manufacturers always benefit from information sharing, and designing an information compensation mechanism can increase the motivation for retailers to share, but this mechanism requires government subsidies to be within a certain range. In addition, the increase in government subsidies helps to enhance the consumer surplus value and social welfare value of information sharing.

On the basis of the actual structure of the linear hydraulic shock absorber of the medium and low speed maglev vehicle, the AMESim simulation model of the linear hydraulic shock absorber was established and verified. The maximum simulation error of the established hydraulic shock absorber simulation model is only 8.6%, and the reliability is high. Combined with the model of hydraulic shock absorber and maglev vehicle structure, the co-simulation model of shock absorber and vehicle system was established. From the perspective of dynamic optimization design, the installation quantity and layout position of lateral shock absorber were designed, and the influence of different installation modes of lateral shock absorber on the stability of maglev vehicle was discussed. The dynamic calculation results show that the installation modes of lateral shock absorber has little effect on the vertical stability of maglev vehicle.When 8 lateral shock absorbers are installed on the suspension frame of a single car, the vehicle stability is the best. When the suspension frame of a single car is equipped with 4 lateral shock absorbers, the vehicle’s ride stability performances takes the second place. When the lateral shock absorber is not installed, the lateral ride stability performances of the measuring points at the end of the vehicle exceeds the excellent limit.

As a backup means of radar control, procedural control plays an important role in case of radar failure. It is very important for controllers to master procedural control skills. To this end, a Python-based procedural control conflict detection and deployment auxiliary teaching system was designed and implemented. Firstly, a seven-layer architecture is designed, covering the user layer, presentation layer, business layer, model layer, data layer, operating system layer and hardware layer. Then, five core modules are constructed: interactive interface module, data preprocessing module, conflict detection module, dynamic conflict display module and conflict deployment module, and the functions and implementation technologies of each module are designed in detail. Finally, taking the actual teaching scenario of Wuhan Nanhu Airport approach control airspace as an example, Python was used to simulate and verify the system. Students can use the system to automatically detect conflict types and propose conflict solutions, so as to better master conflict deployment skills.

New quality productivity encompasses technological innovation, industrial transformation, green development, and social structure optimization, becoming a key driving factor for enhancing the quality of new urbanization. An evaluation index system for new quality productivity and new urbanization was constructed, and the entropy weight method was used to measure their development levels. Through empirical methods such as the fixed effects model, Dagum Gini coefficient method, and mediation effect analysis, the impact mechanism of new quality productivity on new urbanization was systematically analyzed. It is found that new quality productivity has a significant positive effect on new urbanization, with notable regional heterogeneity: the promotion effect is most significant in the Northeast, followed by the East, and relatively weaker in the Central and Western regions. The contribution of inter-regional differences to the impact of new quality productivity on new urbanization is greater than that of intra-regional differences, and the overall Gini index and inter-regional differences show an upward trend. New quality productivity indirectly promotes the process of new urbanization through the development of the financial industry. Based on the above research results, relevant countermeasures and suggestions are put forward to accelerate the construction of new urbanization.

Science and technology finance ecosystem realizes the efficient connection between science and technology resources and financial resources, which can effectively optimize the allocation of funds, and ensure funds flow into the real economy. Deeply grasping the unique advantages of science and technology finance ecosystem to promote regional economy coordinated development is helpful to gradually narrow regional differences and achieve coordinated economic development. Based on the provincial panel data of China from 2012 to 2021, the index system was constructed to measure of science and technology finance ecosystem and the level of regional economy coordinated development. On this basis, the impact of science and technology finance ecosystem on regional economy coordinated development was tested. The results show that the science and technology finance ecosystem can significantly promote the coordinated development of the region and has regional heterogeneity among the eastern, central, western and northeastern regions. According to the research results, suggestions are proposed from three aspects, including improving the overall arrangement of science and technology finance ecosystem, introducing incentive policies, and attracting high-level talents.

Digital image processing technology and finite element simulation software based on ABAQUS were adopted to analyze the cracking damage and related influencing factors of asphalt mixture at the meso level. At the same time, zero-thickness cohesive force units were inserted at the asphalt mortar and aggregate-mortar interface to conduct finite element simulation of asphalt mixture SCB(semi-circular bending) test and analyze the cracking process of asphalt mixture at the meso level. The effects of pre-cut depth, specimen thickness and support distance on the cracking characteristics of asphalt mixture were investigated by using the load-displacement curve and fracture energy obtained from the cracking of the specimen. The results show that the deeper the prefabricated incision and the smaller the thickness of the specimen, the worse the anti-cracking performance of the specimen, and the anti-cracking performance increases first and then decreases with the increase of the distance between the supports. The anti-cracking performance of the specimen is the best when the distance between the supports is 80 mm.