Selecting the panel data of Yiwu City for from 2015 to 2023, gray correlation analysis was applied to explore the effect of the dry port industry on the city’s economy. The results show that there is a high degree of correlation between Yiwu’s dry port industry and the city’s economic development, and Yiwu port’s dry port industry has a promotional effect on the growth of the economy of the city to which it belongs. On the basis of this research conclusion, the corresponding development strategy with pertinence, feasibility and in line with the provincial situation are put forward, in order to provide reference and reference for the construction planning of dry port and the direction of regional economic development of the relevant cities.

In order to find out the deformation law of roadway under the support of large deformation fiberglass bolt, a three-dimensional calculation model was established by using numerical simulation software, and the support effect of conventional fiberglass bolt and large deformation fiberglass bolt was compared and analyzed. The results show that when the goaf of the working face is squared for the first time and squared for the second time, the roadway shows a trend of inward contraction, and the plastic zone is mainly concentrated around the roadway. The horizontal displacement of the mining side and the settlement of the roof show a trend of gradually decreasing and then tending to be stable. When the goaf is first and second square, within the monitoring range, the maximum horizontal displacement of the mining side has reached the breaking displacement of the conventional FRP anchor rod, but it has not reached the breaking displacement of the large deformation FRP anchor rod. The conventional FRP anchor rod does not meet the support requirements, and the large deformation FRP anchor rod meets the support requirements.

Based on the bibliometric software CiteSpace, the knowledge graph visualization analysis of 1 537 articles on supply chain network optimization sourced from the core library of the Web of Science (WoS) database from 2001 to 2023 was conducted to explore the research overview, hot spots and trends. It is found that there are many researchers and institutions in this field, and Chinese scholars have made significant contributions. The hot topics in this field are robust optimization, facility location, sustainability, etc. The future trend is multi-objective optimization, construction of sustainable supply chains and combine new technologies such as 5G networks, block chain, and a.jpgicial intelligence to help supply chain network optimization.

As the foundation of information industry, integrated circuit industry has become an important symbol to measure the comprehensive competitiveness of a country or region. Based on the statistical data of QI CHA MAO and PatNavi, quantitative analysis method was used to analyze the positioning of Hangzhou integrated circuit industry from two dimensions of enterprises and talents. The research shows that there are some problems in the integrated circuit industry in Hangzhou, such as the small scale of enterprises and the need to strengthen the introduction of high-end talents.Finally, based on the above analysis, the development and cultivation path of Hangzhou IC industry is formulated from three dimensions: enterprise, talent and collaborative innovation.And put forward policy suggestions.

The relationship between digital transformation and audit fees was empirically examined using a sample of Shenzhen and Shanghai A-share listed companies. It is found that digital transformation leads to a significant increase in audit fees.Good internal control and firm size can negatively modulate the positive correlation between digital transformation and audit fees.Heterogeneity analysis shows that the positive correlation between digital transformation and audit fees is more significant for non-asset-intensive firms, non-heavily polluted firms, and high-tech firms. The conclusions will be able to provide certain experience for enterprises to promote digital transformation and help the flourishing development of digital economy.

In order to grasp the evolution of the distribution pattern of pocket parks in Nanchang from 2014 to 2024, the spatial and temporal evolution of pocket parks was quantitatively analyzed by combining landscape pattern analysis with ArcGIS spatial analysis. The research shows that the number and area of pocket parks in Nanchang City have increased significantly in the past ten years, and the overall development trend is “slow to fast”. The distribution of pocket parks at different scales is extremely uneven in quantity and area, and the growth of “small scale” pocket parks is the main one. It has gradually formed a spatial distribution pattern of “small scale”.

To explore the current situation of scie.jpgic and technological talents in Liaoning Province and analyze the factors influencing their work intentions, survey data from a segment of these talents was utilized and a structural equation model was employed. This model examines intrinsic motivators such as salary expectations,family capital, career expectations, job satisfaction, and organizational commitment, alongside extrinsic factors like talent policies, living standards, and urban development, to determine their impact on work intentions. Ultimately, some strategies are proposed to enhance the work intentions of scie.jpgic and technological talents in Liaoning Province, thereby laying a solid foundation and providing robust impetus for the province’s economic transformation and digital economy construction, fostering sustainable and high-quality economic development.

With the global awareness of energy conservation, emission reduction and environmental protection, green building has become the development trend of the future construction industry. As an integrated design management tool, BIM(building information modeling) technology provides strong technical support for green building design. Based on this background, the application capability of BIM technology in the field of green building design and its impact on improving the sustainability of green building design were explored.The BIM application ability evaluation index system was established, then entropy weight method was adopted to assign weight, and fuzzy comprehensive evaluation method was used to evaluate the BIM application ability of a green building design team. Specific suggestions are put forward.

Taking national laboratories, research centers of universities and enterprise research from four typical countries in Europe, America and Asia-Pacific region as the research objects. Through in-depth analysis of their industry distribution and regional layout, their successful experiences and innovative models were summarized. It is found that the success of foreign scie.jpgic research institutions largely benefits from clear national strategic guidance, industry-university-research’s closely integrated ecosystem, flexible and efficient resource allocation mechanisms, as well as careful planning and policy support for innovative regions. At the same time, foreign scie.jpgic research institutions attach great importance to cross industry cooperation, form industrial chain synergies, and rely on regional characteristic resources to create industrial clusters with global competitiveness. Based on the above analysis, a series of inspirations and suggestions for the industry layout and regional development strategy of scie.jpgic research institutions in China have been proposed, emphasizing the need to strengthen top-level design, balance the regional layout of scie.jpgic research institutions, carry out technology research and development that adapts to regional innovation and development, and fully guarantee the autonomy of scie.jpgic research institutions, support and lead China’s scie.jpgic and technological innovation and high-quality economic and social development.

Consolidation plugging is an effective means to control drilling fluid leakage in oil and gas wells. Revealing the migration law of plugging slurry in wellbore-fracture and constructing continuous solidified body is one of the key problems to be solved in this technology. Therefore, the CFD numerical simulation method is adopted. A numerical model of vertical fracture consolidation plugging with dynamic change of wellbore pressure is established. The effects of density, plastic viscosity, yield stress, displacement and fracture opening of Bingham flow plugging slurry on the migration of plugging slurry were analyzed. The research shows that during the grouting process, the low-density plugging slurry preferentially enters the upper part of the vertical crack. The high-density plugging slurry preferentially enters the middle of the vertical fracture, and there is obvious mixing phenomenon. The plugging slurry migrates faster in the horizontal direction than in the vertical direction in the fracture. The plugging slurry with low viscosity is easier to enter the fracture. The higher the viscosity is, the longer the time for the plugging slurry to reach the same volume ratio at the fracture outlet is. The higher the volume ratio is, the lower the efficiency of plugging slurry replacing drilling fluid is. The effect of yield stress on the migration of plugging slurry in wellbore-fracture is not significant. The smaller the displacement or the larger the crack opening, the faster the instantaneous flow rate of the plugging slurry at the crack outlet increases, the larger the volume of the plugging slurry entering the deep part of the formation, and the smaller the volume of the plugging slurry required to reach the same volume ratio at the crack outlet. The results of numerical simulation have certain theoretical guiding significance for the formulation of curing plugging scheme.