Abstract.In modern society, the frequency of explosion accidents is gradually increasing, which brings a great threat to the safety of people's lives and property and social stability. Explosive loads are extremely destructive, with huge energy and powerful impact force released in an instant, capable of causing serious damage to buildings and infrastructure. Therefore, it is of great practical significance to study explosion protection measures in depth and improve the damage resistance of buildings and infrastructure under explosion loads. The traditional underground dispersed layer can reduce the … Read more →

Abstract.Since the reform and opening up, with the rapid development of the Chinese economy, public health problems have become increasingly serious. At the same time, due to the reality of imbalanced urban-rural development in China, improving the living environment in rural areas is the key and difficult point to achieve rural revitalization. Therefore, in 2015, the Chinese government officially began the "Toilet Revolution", a national public health movement aimed at improving urban and rural public health problems, enhancing people's quality of life, promoting rural economic development, and … Read more →

Abstract.Junior high school stage is important for not only students' life development, but also development of thinking. As one of the important compulsory courses in junior high school, English occupies a very important position in education. The new curriculum standard puts forward the requirement of creating associative situation for junior high school English teachers. Situational teaching method is a kind of teaching method which originated in Britain in the 1920s and 1930s. It is based on the cultivation of oral ability and emphasizes the basic structure of target language through meaningful … Read more →

Abstract.Biochar based microbial fertilizer has loose porous structure, which can improve soil structure, improve soil fertility, promote crop growth, and provide strong support for agricultural sustainable development. In this paper, the research progress of biochar based microbial fertilizer in the preparation process, fertilizer efficiency research, application effect and other aspects was reviewed, and it was pointed out that in the future, in-depth research should be carried out in the aspects of preparation process and performance optimization, microbial strain screening and function enhancement, … Read more →

Abstract.Soft steel dampers have stable hysteresis characteristics and can effectively dissipate energy under repeated loads, providing good shock absorption effects for structures. It can be used for both seismic design of new buildings and seismic reinforcement of existing buildings. Suitable for various structural forms of buildings, including concrete structures, steel structures, and heavy-duty wooden structures. It is also applied in bridge structures, which can effectively reduce the vibration response of bridges under earthquake, wind vibration, etc., and improve the seismic performance and … Read more →

Abstract.In the context of the new development pattern, a deep understanding of the factors affecting enterprise productivity and an accurate evaluation of the implementation effect of foreign access policies have important theoretical and practical significance for further promoting the improvement of enterprise quality and efficiency, and promoting the high-quality development of the Chinese economy. This article is based on the former research and uses the negative management list of foreign investment as the research basis to study the impact of investment liberalization on enterprise productivity … Read more →

Abstract.With the rapid popularization of electric vehicles, the recycling of used power batteries has become an increasingly prominent issue. Recycling of used power batteries not only involves environmental protection, but also relates to the efficient utilization of resources. The current recycling system faces problems such as low recycling efficiency, high cost and resource waste. From the perspective of supply chain management, this paper analyzes the current situation and problems in the recycling process of used power batteries, and puts forward a series of optimization strategies, including … Read more →

Abstract.Soil organic matter (SOM) in China's arable land is a critical foundation for maintaining agricultural productivity and ecosystem health. However, in recent years, the content of SOM has shown a declining trend due to unsustainable agricultural practices, excessive use of chemical fertilizers, and land degradation. This decline has adversely affected soil fertility, water retention capacity, biodiversity, and carbon sequestration. Although certain regions have seen improvements through the application of organic fertilizers, straw return, and conservation tillage, the overall SOM levels remain … Read more →

Abstract.In recent years, with the complex and changeable international situation, local wars and conflicts abroad have occurred frequently, which seriously threaten the safety of human life and property. Against this background, high-precision and high-intensity strikes against key targets such as enemy command posts and ordnance reserves have become the norm in modern warfare. As the undercard of national security, the security and protection capabilities of underground military facilities are of great importance. Underground structures not only play the role of emergency evacuation of personnel to … Read more →

Abstract.Food security is an important strategic issue for the country. With the advancement of urbanization, food security needs to be re examined. Based on panel data from 31 provinces (regions, cities) in China from 2011 to 2022, this study analyzed the cluster effect of grain production using Moran index, and explored the impact of urbanization process on grain production and its spatial spillover effects through spatial Durbin model. Finally, the convergence of grain production was studied based on alpha and beta convergence models. The research results show that: (1) there is a significant … Read more →

Abstract.In this study, the CiteSpace literature metrology analysis tool was employed to undertake a multi-dimensional metrological analysis of the research hotspots and development trends in the domestic green logistics research domain within China National Knowledge Network from 2014 to 2024. Through the visual analysis of relevant literature, the core research themes, major research institutions, and research frontiers in the field were identified. The results indicate that the research on green logistics in China is ascending. The collaboration among authors and research institutions from different … Read more →

Abstract.The promotion and application of organic fertilizers in agriculture not only enhance the soil organic carbon pool but also offer viable solutions for addressing climate change. This paper, grounded in a comprehensive review of existing literature, analyzes the effects of organic fertilizers on cultivated land productivity and soil carbon pools. It summarizes the mechanisms through which organic fertilizers improve agricultural productivity and evaluates their carbon sequestration potential within the soil carbon pool. Finally, the environmental impact of organic fertilizer application process … Read more →

Abstract.This paper conducts an in-depth study on the fatigue performance of buckling-restrained braces (BRBs) under low-cycle large deformation conditions. As a device that utilizes the hysteretic energy dissipation of metal yielding, BRBs have been widely used in the design of new structures and the seismic strengthening of existing structures. Its remarkable advantages include stable performance, convenient fabrication, low cost, and excellent hysteretic performance. Applying DIC technology to the fatigue analysis of BRB welds under low-cycle large deformation can achieve full-field measurement of … Read more →

Abstract.Based on panel data from 111 prefecture level cities in the eastern coastal region of China from 2006 to 2021, this article regards the three batches of smart city pilot policies implemented since 2012 as a "quasi natural experiment", uses the asymptotic difference in differencesAA (DID) method to explore their impact on carbon emissions in the eastern coastal region of China, and verifies the scientific and credibility of the research results through multiple robustness tests. Then, heterogeneity analysis and mechanism analysis are conducted to explore the impact mechanism of smart cities on … Read more →

Abstract.Weather changes have an important impact on human production and life as well as socio-economic activities. In recent years, people have also gradually paid attention to the study of weather, especially the study of temperature, and it is of great practical significance to find an accurate temperature prediction model. At the same time, the use of machine learning methods to construct a temperature model can predict temperature changes more accurately and quickly, and provide a more reliable basis for weather forecasting. Therefore, in response to the unsatisfactory accuracy of temperature … Read more →

Abstract.Based on the triaxial shear tests of mud sediments in the South China Sea, mud chalk-type sediments in the South China Sea, and sandy sediments in the Nankai Trough, Japan, at different hydrate saturation and enclosing pressures, the stress-strain relationships of hydrate-bearing clays, mud chalk-type soils, and sandy soils were analyzed. The test results show that:(1)The stress-strain curves of the South China Sea clay sediments show three stages of elasticity, plastic deformation and strain hardening, which are significantly different from those of the hydrate-free clays; the stress-strain … Read more →

Abstract.With the continuous growth of the economy, the contradiction between finance and the environment has become increasingly prominent, and green finance has attracted much attention due to its sustainable development function. This study integrates green financial efficiency into green total factor productivity based on the two-stage super efficiency unexpected SBM model, and constructs the financial green total factor productivity of the Yangtze River Economic Belt from 2013 to 2021. The convergence model is used to verify the convergence of productivity development. The research results … Read more →

Abstract.This paper summarizes the research status of innovation capability of enterprise, reviews the importance of enhancing the capability of independent innovation as a national development strategy. In particular, the Wenzhou government attaches great importance to innovation and the promotion of "Science and Technology Innovation Index".This paper systematically combs the innovation theory, the Delphi method and other related theories, analyzes the development trend of innovation theory research, innovation capability index construction and evaluation method at home and abroad. Through literature … Read more →

Abstract.With the reform of the new college entrance examination, senior high school English writing has received great attention. The English Curriculum Standards for Senior High Schools (2017 Edition Revised in 2020) proposes that English teaching in senior high schools should focus on cultivating students’ core competence in the English discipline. In particular, English writing, which can fully reflect students’ comprehensive English application skills, plays a significant role in English learning. However, according to current learning situation, the writing performance among senior high school … Read more →

Abstract.With the rapid development of the global digital economy, digital trade, as a new trade model, has a profound impact on the export competitiveness of Chinese enterprises. Starting from the connotation and characteristics of digital trade, this article analyzes the impact mechanism of digital trade on the export competitiveness of enterprises, explores the path of digital trade promoting the improvement of Chinese enterprises' export competitiveness, and provides theoretical basis for the transformation and upgrading of Chinese enterprises and the development of foreign trade. Read more →