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Pressure hydrometallurgy is one of the special metallurgical technologies, which is widely used in the separation, extraction, metal reduction and mineral synthesis of alumina, laterite nickel ore, sphalerite and gold ore. The development history of pressurized hydrometallurgy technology in China for more than 60 years shows that the production process, technical equipment and scale have reached the world advanced level. In the face of the increasingly fierce competition in the domestic and foreign non-ferrous metal market, energy conservation, emission reduction and environmental protection awareness, as well as the more stringent technical requirements of the production process, the pressure hydrometallurgy technology has increasingly shown its inherent technical advantages in the efficient and clean utilization of complex and low-grade refractory minerals, the pressurized hydrosynthesis and preparation, pressurized hydrohydrogen reduction and low-carbon metallurgy. In this paper, the development and characteristics of pressure hydrometallurgy technology are described, with emphasis on the research progress of clean production of alumina pressure hydrometallurgy, oxygen pressure leaching of sulfide ore and pressure hydrometallurgy of vanadium slag. Finally, the development prospect and direction of pressure hydrometallurgy technology in the future are prospected. [ABSTRACT FROM AUTHOR]

Copyright of Petroleum Refinery Engineering is the property of Petroleum Refinery Engineering Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Based on the research and analysis of the components and environmental hazards of drilling waste fluid, the technologies and methods of drilling waste fluid treatment at home and abroad in recent years were summarized. And the research progress ami application of simplification, stabilization ami resource treatment technologies of drilling waste fluid were introduced・ Ulic development trend of drilling waste fluid treatment technology was prospected in the aspects of source control, product upgrading, comprehensive utilization of new technology

Inorganic binder used in casting process has the advantages of low odor, labor-friendly conditions, and relatively low cost, which is one of the main development directions for casting molding materials in the future. However, compared to organic binders (such as resin binders), inorganic binders exhibit lower bonding strength and are more sensitive to environmental humidity. This sensitivity poses challenges, particularly in the reclamation of used sand, thus limiting their broader application. In this paper, the research and application status of inorganic binders (mainly silicate inorganic binders) and their curing methods are summarized. In addition, the research and application of phosphate inorganic binders and 3D printing inorganic binders that are being developed are introduced. Meanwhile, a detailed comparative analysis is conducted on the challenging issue of "reclamation for used sand" in the application of inorganic binders. Finally, the development direction of inorganic binders is clarified. [ABSTRACT FROM AUTHOR]

Copyright of Science & Technology of Cereals, Oils & Foods is the property of Science & Technology of Cereals, Oils & Foods Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Drainage & Irrigation Machinery Engineering / Paiguan Jixie Gongcheng Xuebao is the property of Editorial Department of Drainage & Irrigation Machinery Engineering and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of China Tropical Medicine is the property of China Tropical Medicine Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Harbin Institute of Technology. Social Sciences Edition / Haerbin Gongye Daxue Xuebao. Shehui Kexue Ban is the property of Harbin Institute of Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Drainage & Irrigation Machinery Engineering / Paiguan Jixie Gongcheng Xuebao is the property of Editorial Department of Drainage & Irrigation Machinery Engineering and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Advanced Textile Technology is the property of Zhejiang Sci-Tech University Magazines and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of China Petroleum Machinery is the property of China Petroleum Machinery Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

To explore global trends in corn starch utilization and compare the technological advancements and strategic layouts of major research institutions domestically and internationally, this study aimed to provide references and insights for China in the field of innovative corn starch utilization. Based on the PatSnap global patent database, the study employed bibliometric and visualization methods to analyze global corn starch technology trends from the perspectives of temporal trends, geographical distribution, technological distribution, and research institutions. The results showed that global corn starch utilization technology had matured and stabilized, with applications primarily in food processing and animal feed, and gradually expanding into the fields of pharmaceutical formulations, materials science, microbial culture and fermentation, and genetic engineering. Although China led in the number of patents, there was a significant gap in global strategic layout, technology quality, and industrial development. It was recommended to strengthen the development of core technologies and global strategic layout, enhance the level of industrial development, and increase awareness of intellectual property protection and market competition. These efforts were expected to provide opportunities and development pathways for the high-value utilization of Chinese entire corn starch industry chain.

Copyright of Continue Education Research is the property of Harbin Normal University and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Objective: The objective of this study is to explore the current research status, key areas, and future development trends in the field of resin materials for dental caries repair through an objective and quantitative analysis of the literature. Methods: A search was conducted on the Web of Science Core Collection using "dental cavity" and "resin" as keywords, covering the period from 2000 to 2023. Data including author names, journals, countries, institutions, keywords, and citation rates were extracted. The collected data was subjected to statistical analysis using bibliometrics methodology, and visual knowledge maps were generated using software like CiteSpace 6.2.R4, Microsoft365, and R. Results: A total of 4800 articles were retrieved, involving 13,423 authors, 2654 institutions, 76 countries, and 560 journals. The number of publications and cumulative publications in this field showed an increasing trend, reaching a peak in 2022. Dental Materials was the journal with the highest number of publications, cumulative publications, and citation rates. XU HHK was the most prolific author in terms of publications and citations. The University of Maryland was the institution with the highest number of publications. Brazil was the country with the highest number of publications. The USA had the highest level of collaboration with other countries. Collaboration between different authors, institutions, and countries in this field was relatively close, which contributed to the rapid development of resin materials for caries repair. The current research focus is mainly on the nature of dental caries, characteristics of resin materials, and bonding strength of adhesives. Enhancing the bioactivity and remineralization of resin materials, advanced antibacterial strategies, longevity and durability of resin restorations, nanotechnology, and material innovation, as well as digital dentistry, will receive increased attention as future research trends. Conclusion: Resin materials for dental caries repair have received significant attention. Future research should combine nanotechnology and big data analysis to investigate the mechanisms of dental caries occurrence and development, enhance the performance and longevity of resin materials, and conduct high-quality, large-scale empirical research. [ABSTRACT FROM AUTHOR]

Natural gas hydrate (NGH) is a significant alternative energy resource in achieving carbon neutrality. The developmental trend and competitive landscape of NGH exploitation and production are crucial for policymakers in government, managers of enterprises, and researchers. This study introduces a novel framework for conducting an in-depth analysis of NGH, integrating patentometrics, technology evolution, and correlation relationships to monitor developmental trends and competitive landscape through patent analysis. The results indicate that China, the USA, and Japan have distinct technology advantages. Current technological developments in the NGH field focus primarily on extraction technologies, equipment, and processing systems. The co-opetition analysis among countries reveals that the most extensive international cooperation network is primarily in Europe and the USA, with national partnerships in Asia concentrated in China and Japan. Institutional cooperation remains limited, primarily within universities in China, while both the USA and Japan foster collaboration between enterprises. The competitive landscapes of key NGH-related technologies among countries and institutions are also examined. This study contributes not only to monitoring the developmental trend and competitive landscape in NGH but also to providing policy recommendations for government and enterprises regarding strategic management and collaborative innovation. [ABSTRACT FROM AUTHOR]

By using data sources from 840 literatures related to the career development of migrant workers included in CSSCI journals in CNKI database between 2000 and 2022,with the help of bibliometric method and visual analysis software CiteSpace,we described the author map, keyword co-occurrence map and cluster map of the research on the career development of migrant workers, and analyzed the four major research hot topics of the career development of migrant workers, including employment quality, vocational characteristics and employment patterns, education and training and career survival and development. We combed the evolution path and development trend of the professional development of migrant workers, put forward that the professional development of migrant workers could be divided into three stages of exogenous driven survival research, exogenous driven development research and internal and external driven optimization research. At the same time, we predicted the expansion of the future research topic of migrant workers’ career development. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Wildland Fire Science is the property of Journal of Wildland Fire Science Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Petroleum Geology & Oilfield Development in Daqing is the property of Editorial Department of Petroleum Geology & Oilfield Development in Daqing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

This study analyzes 1643 documents related to skiing from 1974 to 2023 using the Web of Science Core Collection database, employing CiteSpace and VOSviewer for quantitative analysis. Findings reveal a growing literature output, with the past five years contributing to 36.2 % of publications. Norway leads in total publications and collaboration intensity, with the University of Salzburg and the Norwegian University of Science and Technology as prominent institutions. The research spans a wide range of disciplines such as Sport Sciences, Physiology, etc., and interdisciplinary intersections with engineering, computer science, etc. have become a future research trend. The research focuses on the analysis of skiers' sports performance, the analysis of skiing-induced sports injuries, the biomechanical analysis of skiers' postures, and the analysis of skiing-induced respiratory diseases. The study highlights the evolution of research focus from skiing injuries to injury prevention and sports performance enhancement. This comprehensive overview aids scholars in understanding skiing research hotspots and future trends efficiently.

To improve the research and evaluation effect of remaining oil in high water cut oilfields， this paper sorted out the concept and influencing factors of remaining oil， summarized the research methods and applicable conditions of remaining oil from three aspects of microscopic distribution， macroscopic distribution， and quantitative analysis of saturation of remaining oil， and discussed the distribution characteristics of remaining oil in water flooding reservoirs， heavy oil reservoirs， and chemical flooding reservoirs based on literature research. The difficulties and development trends of remaining oil research were further put forward. The results show that the influencing factors of remaining oil mainly include geological structure， sedimentary microfacies， reservoir heterogeneity， well pattern density， well pattern， perfection of injection-production system， and production performance. The remaining oil research methods include experimental analysis， numerical simulation， field testing， etc. The research purposes and applicable conditions of each method are different， and the test results reflect the distribution of remaining oil saturation at different locations and scales. The distribution of remaining oil in high water cut oilfields is highly dispersed and relatively enriched， and the microscopic distribution of remaining oil is in various forms of continuous and discontinuous phases. The development trend of remaining oil research includes but is not limited to five aspects： the construction of super-large physical models， the integration of multi-scale high-resolution imaging systems， the improvement of numerical simulation methods considering the time-varying and discontinuous nonlinear seepage of different displacement media and physical properties， the comprehensive application of multidisciplinary and multi-method field testing， and the wide application of big data artificial intelligence.

芝麻是世界上最古老的油料作物之一，也是我国重要的优质特色油料作物，其在国际油料产业发展中居于重要地位。我国既是芝麻生产大国，也是消费大国。综述了世界芝麻生产与贸易现状、主产国及其芝麻种植区域分布，栽培品种现状，分析了世界芝麻生产中存在的问题和我国芝麻生产发展趋势。芝麻市场刚性需求、政策支持和生产技术进步及农业“走出去”战略和“一带一路”倡议，将会进一步促进我国芝麻产业发展并提升其在国际芝麻贸易中的地位。Sesame is one of the oldest oilseed crops in the world，and it is an important and specific oilseed crop with high quality in China. Sesame plays an important role in the development of international oilseed industry. China is both a major producer and consumer of sesame. The status of sesame production and trade,the major producing countries and their sesame planting areas distribution,and cultivated variety status of the world were clarified, the problems existing in the world sesame production and the development trend of sesame production in China were analyzed. The rigid demand of sesame, policy support and production technology progress, as well as the agricultural "go out" strategy and "the Belt and Road" initiative, will further promote the development of China′s sesame industry and enhance its status in the international sesame trade.

AbstractWith the development of the manufacturing industry and the continuous progress of science and technology, as one of the core equipment of the high-end manufacturing industry, CNC lathe is also developed and improved. After searching a large amount of literature, through the elaboration of the current domestic and foreign research institutions for the CNC lathe research history, development level and development status, comparative analysis of different types of CNC lathe structure, characteristics and applications, concluded that the CNC lathe is the best choice for the current rotary parts machining manufacturing tools. On this basis, it analyzes and summarizes the tool path planning, cutting process optimization, high-speed cutting technology and other key technical issues to be solved in the future development of CNC lathe, and finally looks forward to the development trend of CNC lathe, in order to provide references for related research.

Name reactions are the cornerstone of organic chemistry and constitute a vital component of organic chemistry experiments in universities. This article provides a concise overview of organic name reactions, including those named after Chinese chemists. The focus is primarily on the current status of name reactions in university organic chemistry experiments, exploring their teaching characteristics, advantages, and future trends. This article serves as a reference for domestic colleagues engaged in experimental teaching research, as well as for expanding new methods and technologies in experiments. Furthermore, it aims to enhance students' interest in learning and foster a sense of national pride. [ABSTRACT FROM AUTHOR]

In the new era of building a socialist modernization country with the goal of promoting highquality development, we deeply analyze the knowledge system of the Introduction to Architecture course. This analysis is based on the cross-disciplinary specialties of local applied universities and the orientation of prioritizing employment and integrating industry and education. We propose the teaching reform of “theory-practice alternation” which is adapted to the current times and societal needs. Finally, we comprehensively summarize the effectiveness of curriculum construction, in order to provide theoretical references for the implementation of fostering character and civic virtue and deepening the reform of collaborative education mechanisms. [ABSTRACT FROM AUTHOR]

As a key component of fertilization equipment, the fertilizer discharger has an important impact on the accuracy of the amount of fertilizer applied during the fertilization process. Countries around the world have been advocating for reducing the use of chemical fertilizers and improving fertilizer utilization, and researchers have also conducted in-depth research on precision fertilizer devices. In order to further improve the precision of dosing and distribution devices for fertilizers, in this study, four types of fertilizer dischargers (spiral fertilizer dischargers, groove wheel fertilizer dischargers, disc fertilizer dischargers, and air-feed fertilizer dischargers) which are currently commonly used are thoroughly analyzed. The operating principle and performance characteristics of the fertilizer dischargers are elaborated upon, and the current research status of their structure and working parameter optimization are discussed and summarized. Overall, the research of Chinese researchers is mainly described. The problems existing in research on the precise fertilizer discharge of fertilizer dischargers are pointed out, and the future development trend is predicted, aiming to provide a beneficial reference for improving the technical level of precise fertilizer discharge. [ABSTRACT FROM AUTHOR]

In comparison to the traditional fibers, flax fiber has many features, i.e. high fracture strength, small tensile deformation, better bending and large torsion stiffness. Flax fiber cement-based materials are the civil engineer materials with the broad application prospects. The research statuses and the existing problems of cementbased materials with flax fiber were discussed from 3 aspects, i.e. the physical and chemical properties of flax fiber, the role of flax fiber on the behaviors of cement-based materials, the properties improvement of cement-based materials with flax fiber. Based on above investigation results, the following research directions were drawn: enhance the using of flax fiber to replace polypropylene fiber on cement-based materials; revel the long-term properties of cement-based materials with flax fiber at the wet conditions; build the damage model of flax fiber cement-based composite materials under the combined actions of three-axis stress and wet conditions; improve the application performance of cement-based composite materials with flax fiber through increasing itself strength of flax fiber and improving the interfacial adhesion between flax fiber and cement-based materials. [ABSTRACT FROM AUTHOR]

【Objective】The system presents research dynamics,hot topic evolution,and development trends in innovation-driven agricultural development.【Methods】Using the CNKI database and CiteSpace 6.2 R4 econometric analysis software,a visual knowledge graph analysis was conducted on the research dynamics,hot topic evolution,and development trends in innovation-driven agricultural development in China From January 17,2001 to July 15,2023.【Results】From 2001 to 2023,research on innovation-driven agricultural development in China has progressed through three stages：the embryonic stage,rapid growth stage,and high-quality development stage. The top 5 disciplines in terms of number of publications were agricultural economy,economic system reform,agricultural basic science,scientific research management,and information economy,reflecting the emerging interdisciplinary integration of innovation-driven agricultural development research. The author with the highest number of publications JIANG Changyun,with 6 articles. Government departments,universities,and research institutes were the main contributors to research publications on innovation-driven agricultural development. While there was a certain degree of cooperation among authors and institutions,the cooperation was relatively loose. The most frequently occurring keywords was innovation-driven,with a frequency of 87. #0 innovation-driven was the cluster with the most citations in innovation-driven agricultural development research. From the perspective of keywords emergence,the top five keywords with the strongest emergence were：rural revitalization (2.44), smart agriculture (1.92),innovation-driven (1.91),industrialization (1.86), and transformation and upgrading (1.76). From 2001 to 2023,#0 innovation-driven had been the most popular and cross-disciplinary research topic.【Conclusion】Innovation-driven,scientific and technological innovation,No. 1 central document,and modern agriculture are currently the research hotspots in innovation-driven agricultural development. Research on rural revitalization,smart agriculture,and transformation and upgrading needs to be deepened,and future trends will focus on industrial integration,digital agriculture,and agricultural digitization research. [ABSTRACT FROM AUTHOR]

This research utilizes 554 policy texts relevant to the national health reform enacted from 2009 to 2023. It implements the bibliometric and content analysis methods by creating a two - dimensional analysis framework of health policy that encompasses the characteristics of policy structure and text content, to enhance the understanding of the reform, progress and governance of health undertakings. The study finds that the collaboration networks for multi-departmental collaboration in health policy are expanded with a distinct pattern of cooperation emerging. With the trend of healthcare being the central focus and integrating the three medical aspects (healthcare, insurance and pharmaceuticals), health policies have demonstrated the movement towards integrated control of medical insurance and medicine. The connection between the three medical services has shifted from their independent governance to mutually coordinated governance. Supply-oriented policy tools are typically invoked at the outset, while environment -oriented policy tools are employed more significantly in the process of advanced reform and high - quality development phases. Based on this, reflect on the macro, meso and micro level will provide reference for future policy formulation. [ABSTRACT FROM AUTHOR]

Copyright of Petroleum Geology & Recovery Efficiency is the property of Petroleum Geology & Recovery Efficiency and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

During the process of tunnel construction, it is crucial to regularly observe and measure the deformation of excavation surface and supporting structures to ensure the safety of constructors and the long-term stability of the tunnel structure. Monitoring the condition of tunnel structure usually involves measuring the deformation of specific points in the tunnel or measuring the convergence. However, traditional method of utilizing total station presents several issues such as the need for the installation of reflective prisms, susceptibility to human error, and inadequate monitoring frequency. Rapid advances in machine vision and sensor technology have brought new solutions for tunnel monitoring and measurement. These solutions include robotic total stations, ground-based real aperture radar, terrestrial laser scanning, vision-assisted laser, wireless sensor network with MEMS, and fiber optic sensing. Each technique offers unique advantages and capabilities for tunnel monitoring. This manuscript aims to provide a collective review of recent engineering cases and compare the advantages of these techniques. The ultimate goal is to facilitate the selection of measurement equipment that is most suitable for future projects. [ABSTRACT FROM AUTHOR]

Based on relevant literature in the Web of Science Core Collection, this paper uses CiteSpace and spatial analysis methods to explore the spatial and temporal distribution pattern of the research areas of low-carbon rural and identify the evolution and trends of low-carbon rural research. The conclusions are as follows: ➀ The study of carbon emissions in rural areas began with a focus on developed countries, and later expanded to include developing countries. This research spanned across time and space, with China and the United States emerging as key geographical differentiators. ➁ The research on rural carbon emissions involves many disciplines such as environmental ecological science and agronomy, and reveals a concurrent trend of expansion of research topics and improved quantitative management model correctness. ➂ The five major topics of rural carbon emissions research are farming practices, biofuels and land use changes, agricultural-food-environment systems, sustainable diets, and rural greenhouse gas measurement and industrial management ➃ Research in China has some limitations, such as a focus on rural travel rather than dietary structure, limited scope and low degree of refinement of greenhouse gas measurement. Based on the above conclusions, combined with China s "the Belt and Road Initiative", rural transformation and rural revitalization policies, the future research is prospected from the aspects of cross-regional coordination of rural carbon emissions, pilot practice of carbon tax and environmental tax, construction of intelligent management system of rural industries, and adjustment of national diet structure, so as to provide reference for the development of low-carbon rural areas in China. [ABSTRACT FROM AUTHOR]

Copyright of Science & Technology of Cereals, Oils & Foods is the property of Science & Technology of Cereals, Oils & Foods Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Bulletin of the Chinese Ceramic Society is the property of Bulletin of the Chinese Ceramic Society Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Rolling Stock (1002-7602) is the property of Rolling Stock Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Background: Anterior shoulder dislocation is the most common type of shoulder dislocation and is easy to develop into recurrent type, causing economic burden to society. This study uses the bibliometric method to analyze the global research status, hotspots and trends of anterior shoulder dislocation, aiming to promote the exploration of anterior shoulder dislocation. Methods: The literature on anterior shoulder dislocation in the past two decades were retrieved and downloaded from the Web of Science Core Collection (WOSCC) database. CiteSpace, VOSviewer and bibliometrix package of R software were used to conduct scientific bibliometric analysis of the literature. Finally, some statistical graphics were performed in Graphpad Prism. Results: A total of 3914 publications related to anterior shoulder dislocation from 2003 to 2022 were retrieved and screened from the WOSCC database. The ranking of the analysis results showed that Provencher MT was the author with the highest frequency of occurrence. Rush University was the most notable contributor. The American Journal of Sports Medicine was the most comprehensive journal. The United States was the most prominent country. Keywords related to surgical treatment were more significant than others. Conclusion: In the past two decades, the research output on anterior shoulder dislocation have been increasing year by year. The focus has gradually shifted to surgical treatment. Surgical treatment may continue to be the research hotspots in this field in the future.

Stored grain is extremely vulnerable to the storage insects during storage and processing. At present, chemical control is still the main method for controlling stored grain insects. However, the increasing resistance of insects caused by long-term use of chemical control raises unprecedented challenges. Insect-repellent packaging, as a traditional and emerging physical insect prevention method, has increasingly attracted widespread attention among people. The types and characteristics of food packaging materials, the types and application of insect-repellent packaging, the research and evaluating methods of insect-repellent packaging at home and abroad, and the problems existing in the practical application of insect-repellent packaging were reviewed, and the development trend of insect-repellent packaging was prospected, so as to provide reference information for the scientific and efficient use of insect-repellent packaging, development of new insect-repellent packaging to control stored grain insects in the future.

Acid-fracturing technologies have become conventional measures to increase production in the field of petroleum engineering， and they are widely used in carbonate rock， tight sandstone， and volcanic rock reservoirs. However， relevant research mainly focuses on specific blocks， and there is a lack of a systematic and comprehensive summary of relevant research progress. This paper comprehensively investigated the latest progress of acid-fracturing technologies in China and abroad， systematically concluded the research achievements including the hot acid-fracturing technologies， difficulties and measures of acid-fracturing simulation in different reservoirs， acid-fracturing mechanism， and factors affecting acid-fracturing， and pointed out the development trend and existing problems of acid-fracturing technologies. Differentiated multi-staged acid-fracturing technology， volume acid-fracturing technology， and fracture height control acid-fracturing technology are hot acid-fracturing technologies in recent years. There are certain differences in the difficulties of acid-fracturing simulation in different reservoirs. Therefore， it is necessary to formulate corresponding acid-fracturing technology policies according to reservoir characteristics. The acid-fracturing mechanism can be analyzed through theoretical calculation and experiments. Theoretical calculation is the basis of acid-fracturing technology research，and experiments can provide important guidance for the research on acid-fracturing mechanisms and the determination of process parameters. Acid-fracturing technologies are affected by both geological and engineering factors. Geological factors are the basis of acid-fracturing technology policies， and engineering factors are the key to improving acid-fracturing effects. At present， acid-fracturing technologies are developing in four directions： deep and ultra-deep acid-fracturing layers， accurate acid-fracturing objects， expanded acid-fracturing scope， and controllable acid-fracturing technologies. It is suggested to strengthen the research on acid-fracturing theories， continuously improve the process and equipment， and establish the implementation template of typical acid-fracturing technologies， so as to guide the implementation of acid-fracturing technologies.

In the past decade, with the improvement of shale gas exploration and development theory and techno-logy, the commercial development of marine shale gas from Ordovician Wufeng to Silurian Longmaxi formations in southern China has been achieved, and the target of shale gas exploration and development is gradually shifting towards shale gas of deep and complex structural areas and new formations. In order to further promote efficient exploration and development of shale gas, a systematic review was conducted on the recent exploration and deve-lopment progress of SINOPEC shale gas and an analysis was conducted on the development trend of shale gas in China. The research results indicate that: ① The high-quality Fuling National Shale Gas Demonstration Zone has been built and a key technology system for three-dimensional development of marine shale gas has been innovatively formed. ② The large-scale and efficient development of atmospheric shale gas in Dongsheng and Baima blocks of Nanchuan has been realized, and four shale gas accumulation and dispersion models have been constructed: anticline, monocline, reverse fault blocking, and residual syncline. A fine zoning and differentiated development model and a low-cost technology system for atmospheric shale gas have been preliminarily formed. ③ The deep large-scale fields of trillions of square meters in southeastern Sichuan basin edge have been preliminarily implemented, an "overpressure rich gas" model of marine deep shale gas has been innovatively formed, and a fracturing technology system of deep shale gas in the deep range of 4 000-4 500 m has been preliminarily formed. ④ Major breakthroughs have been made successively in Jurassic of Yuanba and Puguang, Permian of Hongxing and Puguang, and Cambrian of Jingyan and Qianwei. ⑤ The future breakthrough and development of shale gas cannot be achieved without innovative research on exploration and development theory and technology. The integration of exploration and development, geological engineering, and technology and economy must be adhered to. The complexity of deep, normal-pressured, and geological characteristics of new shale gas formations should be fully understood. In addition, policy support is also required.