Rui Huang
Abstract.Fluid mechanics is a complex and profound subject, and the knowledge it involves can be applied to many areas of our lives, from our drinking water to the bio-organic materials used to explore the universe, covering almost every aspect of human activity. Of course, in the aspect of hydraulic engineering, the relevant application of fluid mechanics is also essential, such as the relevant numerical calculation in hydraulic engineering, the flow pattern analysis and regulation effect analysis in waterway regulation engineering, and the interaction between fish and fluid, etc. In general, the …
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Zhiyun Cheng, Linjia Zhang, Deyu Li
Abstract.Clarifying the impact of enterprise ESG performance on enterprise value from multiple perspectives plays an important role in promoting the development of new quality productivity. This article is based on data from Chinese listed companies from 2013 to 2022, and from the perspective of corporate governance, examines the intrinsic relationship between corporate ESG performance and corporate value generation. Using the first type of agency cost as an intermediate variable, it analyzes the impact path of "ESG performance corporate governance corporate value". The results indicate a significant …
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Nan Wu, Zhenning Liu, Xiangru Hu, Yibo Pang
Abstract.This study demonstrates the effect on the mechanical properties of granite through the freeze-thaw cycle test method, and investigates the mechanical property parameters and its changing law of the rock samples under different numbers of freeze-thaw cycles. The results show that with the increase of the number of freeze-thaw cycles, the physical property parameters such as mass and longitudinal wave speed of the samples show a tendency of attenuation. Mechanical property parameters such as peak strength and elastic modulus of the specimen also showed a trend of decay.
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Xue Wang, Yongqiang Liang, Tingting Meng
Abstract.As people’s pursuit of spiritual life and material needs continues to increase, a large number of new products have been invented and manufactured, and the dyeing industry has developed at a high speed. With the rapid development of textile printing and dyeing industry has made the composition of printing and dyeing wastewater has become more and more complex, and the discharge volume has greatly increased, which not only increases the difficulty of the treatment of printing and dyeing wastewater, but also has a great impact on the environment, a very small amount of dyes can make the water …
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Yutao Chen
Abstract.In response to the difficulties in direct utilization of low concentration gas in coal mines and the slow development of industrial application of catalytic oxidation technology, a new mode of direct utilization of low concentration gas with a methane concentration of 1.0% in coal mines in catalytic oxidation gas turbine power generation is explored. And based on the development of a 30kW low concentration gas catalytic oxidation gas turbine power generation system, this paper introduces the design process of key equipment such as catalytic oxidation burners, low-temperature and low-pressure …
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Caixia Liu
Abstract.With the gradual development of information and media technologies, more and more tools are available in the process of language learning. In this context, the impact of the use of learning strategies on the spoken English proficiency of English majors has received widespread attention. In this study, the use of metacognitive, cognitive, and social-emotional strategies on the learning strategies of oral English was studied through questionnaires and oral English proficiency tests. The results show that the frequency of use of different learning strategies is significantly positively correlated …
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Yuliang Zhang
Abstract.The prolonged application of fertilizers, often conducted through long-term fertilization trials, offers a robust framework for assessing the effects of continued fertilizer use on agricultural output, soil fertility, and the broader ecological landscape . Despite a wealth of research on soil nutrient cycling and crop yields, there is a relative paucity of studies that address the changes in soil heavy metal concentrations from an environmental conservation perspective. This review aims to outline the implications and risks associated with heavy metals in soil and compile existing findings on …
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Zedian Lv, Senao Li, Yuting Dai, Weidi Zhao, Zejiong Zhou
Abstract.Comprehensively promoting rural revitalization and focusing on promoting high-quality development is a major strategic deployment proposed in the report of the 20th National Congress of the Communist Party of China. Promoting the higher-level development of the tourism and cultural industry in ethnic minority areas is not only a concrete manifestation of implementing the new development concept and continuously consolidating the achievements of poverty alleviation, but also an inherent requirement for promoting the rapid development of the cultural industry, enhancing the country's soft power …
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Li Li
Abstract.This paper focuses on the safety operation and intelligent management of tunnel in coastal cities, and deeply discusses the challenges and opportunities faced by tunnel as an important part of urban traffic under the background of accelerating urbanization process. This paper first analyzes the particularity of the coastal city tunnel in geological environment, climatic conditions and traffic flow, and points out the complexity and importance of its safe operation. Then, the paper elaborates the application of intelligent management in tunnel safety operation, including intelligent monitoring …
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Tianya Xing, Hua Huo
Abstract.The traditional image super resolution method based on convolutional neural network generally brings two problems: First, the model has only a single scale of receptive field, which cannot use the image information in a smaller range; Second, the size of the feature map will become smaller and smaller in the process of continuous convolution, and it is necessary to continuously carry out edge zeroing operation to maintain the original size, which leads to the loss of part of the edge information. To solve the above two problems, we propose a network structure based on structure …
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Yimin Li, Deyu Li
Abstract.Green and low-carbon development is a consensus among countries around the world on the development of the digital industry. The digital industry, as a pillar industry of China's economy, is a high energy consuming and carbon emitting industry. Therefore, the green and low-carbon transformation of the digital industry is of great significance for China to achieve its "dual carbon" goals. The achievement of the "dual carbon" goal relies on the support of financial services, and green finance plays three roles in guiding resource allocation, market price discovery, and risk management in its …
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Kun Han, Xi Xiong
Abstract.Text-to-SQL parsing is the task of converting natural language questions into executable SQL queries, a significant branch of semantic parsing, which has gained increasing attention in recent years. This technology lowers the barrier for people to access databases, enhancing the convenience and availability of data. However, the primary challenge for text-to-SQL parsing lies in domain adaptation, which concerns whether the model can be applied to new databases and effectively align natural language questions with the corresponding tables or columns within the database. To address these issues, …
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Na Wang, Nan Lu
Abstract.With the development of China's economy and the improvement of people's living standards, water pollution has become increasingly serious. Based on the current situation of rural water pollution, this paper analyzes the existing problems and proposes targeted prevention and control measures to promote the sustainable development of the rural ecological environment.
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Jianyu Han, Yong Yang, Zheng Liu, Dusheng Sun
Abstract.This article focuses on titanium alloy research, using triethanolamine oleate as the lubricating additive, the reaction product of triethanolamine, monoethanolamine and decanoic acid as a rust inhibitor, together with modified organosilicon antifoam agent and triazine fungicide, a new type of titanium alloy cutting fluid with excellent environmental protection and rust inhibition was prepared, and its physicochemical properties were systematically investigated through a large number of experiments. The results show that the prepared cutting fluid meets all specifications and demonstrates …
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Fujie Yang
Abstract.The safety of civil engineering structures such as bridges and buildings is paramount, necessitating the early detection and repair of cracks to prevent structural failures. Traditional crack detection methods, including manual inspections and basic image processing, are often hampered by slow detection speeds and limited accuracy. This study explores the integration of advanced deep learning techniques, specifically MobileNetV2, enhanced through transfer learning, to improve the efficiency and accuracy of crack detection. The "Concrete Crack Images for Classification" dataset was employed, …
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Xue Wang, Yongqiang Liang, Weiwei Chen
Abstract.Similar to the dilemma faced by developed countries in the past, as China's industrialisation continues to develop, the environmental problems it causes are becoming increasingly serious. In particular, industrial wastewater, which is discharged directly from factories into the surrounding environment, has become the biggest hidden threat to the environment. Therefore, the treatment of industrial wastewater has always been the focus of environmental protection departments and relevant technical personnel. For the human body, heavy metal ions in wastewater are not only highly toxic and easily …
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Shiwei Wang
Abstract.The problem of gas control in soft and thin seam with high gas content has been puzzling the safety production of coal mine, and the pre-drainage of borehole gas in this seam is one of the effective measures to solve this problem. According to the occurrence characteristics of soft and thin coal seam with high gas content in a mine in Shanxi, this paper studies the reasonable hole sealing depth and drilling construction technology of this coal seam, and determines that the reasonable hole sealing depth of pre-drainage drilling is 18m, and the optimal drilling construction technology is …
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Linghuan Luo, Pengpeng Xia, Dongdong Zeng
Abstract.Nowdays, much research is focused on exploring antioxidant activity based on natural compounds. Licorice, a traditional natural product rich in antioxidant components, has been widely used in clinical medicine. However, there is a lack of theoretical studies on the active components in licorice. In this context, the antioxidant activity of several common active components of coumarin derivatives in licorice was investigated using a density flooding theory (DFT) approach. The free radical scavenging ability of the compounds was achieved by hydrogen atom transfer (HAT), sequential electron …
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Xingcai Lu, Gengxin Sun, Sheng Bin
Abstract.In today's society, recommendation system is widely used to recommend users' preferred products and content. However, with the rapid development of the Internet, there are more and more contents on the Internet, and the algorithm complexity of recommending products to users through the recommendation system is getting higher and higher, and the recommendation algorithm is also more and more inclined to recommend popular products to users, which also leads to the decline in the novelty and diversity of the recommendation algorithm. In order to solve this problem, the study first adopts the …
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Wei Qiao
Abstract.In order to solve the problem of gas exceeding the limit in the No.3 coal seam excavation face of Huoerxinhe coalmine, the gas outburst control measure was adopted to pre-evacuate the gas by the long-distance bedding directional borehole. The results show that after 25 days of gas drainage by long-distance bedding directional borehole, the gas content of test point decreased from 13.81m3/t to 7.81m3/t, and the gas pre-pumping rate was about 43.30%. The driving speed of the main transport roadway was 1.48 times that of the traditional ordinary drilling drainage measures, and the tunneling …
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Chaoran Wu, Shuo Liu, Zejiong Zhou
Abstract.Big data and artificial intelligence technologies have become a key force driving change in all industries. As an important part of this trend, the intelligent information audit system can effectively improve the efficiency and accuracy of the audit work by integrating the big data technology and the AI algorithm. This paper first analyzes the development of the information audit system, and the scholars research, from the core elements of intelligent information audit system and the main research content, to discuss how to build an efficient and reliable intelligent information audit system, …
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Jianshe Yan
Abstract.Concrete material with its own excellent properties, plays a vital role in the construction industry, the annual production of about 10 billion tons, which makes concrete become second only to water, the world's second largest amount of material. However, in the actual service process, all kinds of buildings will be affected by their own and environmental factors, concrete is easy to crack, which affects the mechanical properties of concrete decline, this paper in slag as a carrier of microorganisms on the basis of adding nano-SiO2 in ready-mixed concrete, studied its 3d, 7d, 14d, 28d …
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Zheng Liang, July Liang Chen
Abstract.Background: Non-alcoholic fatty liver disease (NAFLD) represents a growing global health crisis and is closely associated with increases in obesity and type 2 diabetes. Despite its ubiquity, its underlying biochemical mechanisms and effective therapeutic strategies remain poorly defined, hampering the development of targeted interventions. Methods: Candidate genes were obtained from the GEO database, and Kyoto Encyclopedia of Genes and Genomes enrichment analysis and gene set enrichment analysis were used to identify pathways involved in NAFLD-related pathways. The top genes with higher degree …
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Wenchao Lu, Yong Yang, Tianxin Kou, Xuan Wang, Honghao Fan, Zenan Huang
Abstract.Aiming at the problems of low conveying efficiency, poor adaptability of conveying Scallion poles of different diameters, and little innovation of the mechanism that exist in the existing clamping conveyor device, a symmetrical flexible clamping conveyor device suitable for Scallion harvesting was innovatively designed. The design and analysis of the overall structure of the clamping conveyor, the clamping mechanism, the clamping pulley and other key mechanisms were carried out, and finally the finite element simulation analysis of the clamping conveyor was carried out, and the analysis of the …
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Ena Xiao
Abstract.The era of artificial intelligence has brought opportunities and challenges to liberal arts education. In terms of opportunities, personalized learning becomes possible, the application of intelligent educational tools to improve the teaching effect, the rich diversity of teaching resources to promote the diversification of teaching content, and the innovation of teaching mode to stimulate the innovation of education methods. However, liberal arts education also faces many challenges in the era of artificial intelligence. Data privacy and security concerns threaten the rights of students and …
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Wei Gu, Jianyu Zhang, Zhigang Li
Abstract.Developmental and educational psychology is a general compulsory course in teacher education. It is a highly applicable course that focuses on students' psychological development and learning rules. It is also a component of the national teacher qualification examination. Teacher certification focuses on "student-centered, output-oriented, continuous improvement", and emphasizes the achievement of graduation goals of "practicing teacher ethics, learning to teach, learning to educate, and learning to develop". At present, the importance of thinking, politics, teaching and learning in high …
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Hao Lin, Jin Chen
Abstract.Sponge city construction refers to the construction of a city that can absorb water like a sponge and has good elasticity. The construction of sponge cities can store and save more water resources for cities, reducing phenomena such as rainwater infiltration, water scarcity, and water ecological environment damage. To scientifically and reasonably evaluate the performance of sponge city construction, this study summarizes the characteristics of sponge city construction models and the current development status of performance evaluation systems in China, and conducts analysis and research on …
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Chunyan Wu
Abstract.With the continuous implementation of quality education, the importance of oral English teaching in junior high school English teaching is constantly increasing. Oral English is an important part of English learning, reflecting students’ language expression ability. Oral English communicative competence is one of the four basic skills in English learning and an important goal of English teaching. However, the current oral teaching quality is not very satisfactory due to the lack of an effective oral communication environment. In order to effectively improve junior high school students’ oral …
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Dongjun Gao, Zhiyong Zhang
Abstract.As the volume of data continues to grow, it is common for data from the same source to contain multiple domains. Combining domain segmentation can enhance the effectiveness of data fusion. This paper presents a multi-truth discovery algorithm that utilises statement value grouping and domain information richness. The data is first grouped based on their similarity, and the resulting groups replace the original data. Then, the reliability of each data source is calculated by domain. The truth value and reliability of each source are iteratively calculated until the end condition is met. …
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Xinming Chen, Jiaojiao Chen, Huazhe Jiao, Dongbing Li, Zhi Yang, Jie Wang
Abstract.A grouting material pressure effect simulation device (FSD) was used to study the performance of grout considering grouting pressure, slurry rheology, clay ash, slurry concentration and particle size composition of waste stone powder (FSD influencing factors). After the effect of filter pressing, the alkaline environment of the slurry became stronger, the number of active particles increased, and the CaCO3 and clay crystals were fully agglomerate, and the degree of crystallization increased. The cation exchange capacity increased, and the formation of calcium-silicon-aluminum matrix phase and …
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Yiming Wang, Xulin Cheng, Xiaowen Sun
Abstract.With regard to the existing transportation means and distribution routes of S company of C city, this paper analyzes them in terms of theoretical optimization and practical significance, aiming to reduce the cost of cold chain transportation. To this end, we determined the objective function of cold chain route optimization forS company of C city. Then, Dijkstra's algorithm is used to solve the cold chain routes. Combined with the example analysis results show that the optimization results based on Dijkstra's algorithm are reasonable and reliable. In this paper, based on the location …
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