Top access

  • Published in last 1 year
  • In last 2 years
  • In last 3 years
  • All

Please wait a minute...
  • Select all
    |
  • Exclusive: Development Trends of Web 3.0
    GAN Huaming
    Science & Technology Review. 2023, 41(15): 69-78. https://doi.org/10.3981/j.issn.1000-7857.2023.15.007
    Abstract (1371) PDF (618) HTML   Knowledge map   Save

    The terms "Web 3.0" and "Metaverse" now both refer to the third generation of the Internet. A theoretical framework for Web 3.0/Metaverse is constructed, which consists of three parts. The first part is the Web 3.0/Metaverse architecture, including the structure of the Internet at the Web 3.0/Metaverse system level and the structure of computers as the Internet end systems at the Web 3.0/Metaverse component level. The second part is the Web 3.0/Metaverse technology system, including nine Web 3.0/Metaverse technologies. The third part is the Web 3.0/Metaverse application world, which structurely integrates the virtual and real worlds into one and covers five fields, namely economy, politics, military, society, and culture, in either function or scene. A Web 3.0/Metaverse application system is a field or subsystem, or sub-subsystem, etc. of the Web 3.0/Metaverse application world. A kind of Web 3.0/Metaverse application, digital twinning, is analyzed. The first-principle of blockchain is proposed: in the Web 3.0/Metaverse application world, the core function of blockchain is to make contrust (common trust).

  • Innovation leads selfreliance and selfimprovement—creating a source of high-quality technological
    PU Xiong, WANG Jie, WANG Zhonglin
    Science & Technology Review. 2023, 41(19): 29-42. https://doi.org/10.3981/j.issn.1000-7857.2023.19.003
    Triboelectric nanogenerator (TENG) has become an emerging platform technology for achieving mechano-electrical energy conversion, with huge application potentials in a variety of fields. For the past decade, through extensive efforts, significant progress on the research of TENG has been made worldwide, including both fundamental scientific research and application technology of TENGs. Therefore, this article aims to review the representative achievements of TENGs in fundamental findings and technological innovations and look forward to the faster development of TENGs.
  • Special to S&T Review
    LIU Huchen, WANG Heming, SHI Hua, YOU Jianxin
    Science & Technology Review. 2023, 41(11): 6-18. https://doi.org/10.3981/j.issn.1000-7857.2023.11.001
    Quality 4.0 is an emerging quality management concept, which has been increasingly appreciated due to intensification of competition, continually changing customer requirements, and technological evolution. It deals with aligning the practices of quality management with the emergent capabilities of Industry 4.0 to improve cost, time and efficiency as well as increase product quality. As the future of quality, Quality 4.0 has become a potential choice for enterprises and has attracted increasing attention in recent years. In the literature, many studies have been conducted to investigate Quality 4.0 from different perspectives. They provide valuable insights and interesting research suggestions concerning Quality 4.0. However, the current researches on Quality 4.0 are insufficient in terms of basic concept, architecture design and key technologies. Therefore, this paper tries to improve the concept of Quality 4.0 by clarifying the definition, features and goals of Quality 4.0 based on a comprehensive review of current researches and practices. Then, a basic architecture of Quality 4.0 is presented by including physical layer, edge layer, analysis layer and decision layer. Besides, eight key technologies, i. e., industrial big data, digital twins, machine learning, machine vision, visualization technology, optimization techniques, connect technology, and collaborative technology, are identified to support the implementation of Quality 4.0. Finally, the problems of Quality 4.0 implementation in the Chinese manufacturing industry and the possible solutions to address them are discussed.
  • Special to S&T Review
    WANG Jiyang, PANG Zhonghe, CHENG Yuanzhi, HUANG Yonghui, JIANG Guangzheng, LU Zhenneng, KONG Yanlong
    Science & Technology Review. 2023, 41(12): 5-11. https://doi.org/10.3981/j.issn.1000-7857.2023.12.001
    As a non-carbon clean energy, geothermal energy plays an important role in promoting the development goals of carbon peak and carbon neutrality due to its advantages of stable and continuous supply. The utilization of geothermal energy is generally divided into geothermal power generation, geothermal direct utilization and geothermal energy storage. Since 2010, global geothermal direct utilization has grown exponentially, with the installed capacity of geothermal direct utilization and annual heat utilization of about 108 GWt and 283,580 GWh, respectively. China has long ranked first in the world in terms of geothermal direct utilization. The geothermal heat pump system shows an exponential growth of about 16% every year, and the geothermal heat pump system accounts for about 72% and 60% of the installed capacity and heat utilization of the global direct utilization of geothermal heat, respectively. The average annual growth rate of geothermal power generation from 2010 to 2020 is about 4% restricted by high-temperature geothermal resources. Geothermal energy storage is the frontier field of geothermal utilization. Europe and the United States have deployed the "HEATSTORE" and "Geothermal Battery" energy storage projects respectively. The geothermal energy storage project deployed by the Geothermal Team of the Chinese Academy of Sciences has also entered the stage of key technology research and demonstration projects construction. As a huge natural energy storage, geothermal storage is the most suitable basis for storing energy and realizing a stable supply of thermal energy in a multi-energy complementary system. It can save other energy sources across seasons, realize efficient and large-scale energy storage across seasons, and improve energy utilization efficiency. Therefore, it can help achieve the development goals of carbon peak and carbon neutrality.
  • Reviews
    WANG Bin, SUN Hongjun, ZHANG Ming, LIU Ying, ZHANG Lizhen
    Science & Technology Review. 2023, 41(17): 102-108. https://doi.org/10.3981/j.issn.1000-7857.2023.17.012
    This paper summarizes five characteristics of China's standardization "going out" in terms of innovation ability demand, domestic and foreign policies, development stage transformation, existing problems and breakthrough points. Around the government, scientific research institutions and enterprises respectively from the "strategy and policy formulation, theory and decision support, standard development and participation" and other aspects of China's standard "going out" optimization path.
  • Exclusive:Geothermal Energy in the Yangtze River Delta
    YAO Yuan, GONG Yulie, YE Cantao,WU Xiaobo, QU Yong, DU Jianguo, MAO Weidong, WANG Yuchao
    Science & Technology Review. 2023, 41(12): 33-45. https://doi.org/10.3981/j.issn.1000-7857.2023.12.005
    This paper introduces the working principle of some new technologies of shallow geothermal and mid-deep geothermal utilization innovative technologies such as aquifer thermal energy storage (ATES), river water source heat pump, ice source heat pump, shallow infiltration seawater source heat pump, comprehensive energy of ground source heat pump and geothermal gradient utilization. By investigating the application cases of these technologies in the Yangtze River Delta region, this paper focuses on the analysis of their advanced technologies, excellent economy and the main problems to be solved. According to their respective characteristics, the prospects for the promotion and application of these innovative geothermal utilization technologies in regions rich in geothermal resources in China, including the Yangtze River Delta, are forecasted. For aquifer energy storage, well completion technology should be optimized to avoid damage to the underground environment. The difficulties in the promotion of river water source heat pump lie in operation management. Ice source heat pump puts forward higher requirements for the preparation and transportation system of ice slurry. The implementation of shallow infiltration seawater source heat pump project must have suitable hydrogeological conditions. The ground-source heat pump integrated energy technology emphasizes the diversification and complementarity of the energy supply system, while the geothermal integrated cascade utilization technology highlights the energy gradient of the energy consumption system. The key to the promotion of these two technologies is economy.
  • Reviews
    HUANG Qianming, LI Lan, Lü Huanwen, YING Dongchuan
    Science & Technology Review. 2023, 41(11): 105-112. https://doi.org/10.3981/j.issn.1000-7857.2023.11.011
    Small neutrino detectors have a wide range of application prospects in reactor monitoring, submarine detection and geophysics research. This paper summarizes the types of neutrinos and detection principles, followed by the development status of detection technologies at home and abroad, including experiments based on inverse beta decay and coherent scattering experiments of neutrinos. Finally, the development of small neutrino detectors is reviewed and differences between different countries and the future development of small neutrino detectors in China are also summarized.
  • Science and Technology Humanities
    LIU Wei
    Science & Technology Review. 2023, 41(13): 118-128. https://doi.org/10.3981/j.issn.1000-7857.2023.13.012
    The victory of Deep Blue against Kasparov in 1997 and the victory of Alpha Dog over Lee Sedol in 2016 set off the trend of artificial intelligence, however, artificial intelligence still has so far a huge gap behind humans in terms of intelligence level and range of capabilities, which hinders its development. The reason is that there is an unbridgeable boundary between human intelligence and machine intelligence. In this context, machines that rely on symbols pointing to objects can only perform formal calculations in a closed environment but cannot realize intentional calculations in an open environment like humans. Therefore, the complementary advantages of man and machine are particularly important. The current relationship between man and machine is mainly a hard function allocation, whereas the relationship between man and machine in the future digital world would more likely be a flexible division of capabilities. This paper discusses in detail the bottlenecks of artificial intelligence, the first principle of intelligence, and other issues, and gives more in-depth thinking about human-machine problem amid these problems. It is proposed that human-machine hybrid intelligence is the future development direction of artificial intelligence.
  • Foreword
    Science & Technology Review. 2023, 41(16): 1-2.
    党的二十大报告指出:“尊重自然、顺应自然、保护自然,是全面建设社会主义现代化国家的内在要求。”随着国家“双碳”战略的稳步推进,绿色转型、绿色消费、低碳产业无疑是未来40年时代发展的主旋律。
  • Science & Technology Review. 0, (): 0-0.
    Abstract (226) PDF (51)   Knowledge map   Save
    以公共交通为导向的开发 (TOD) 是城市公共设施和空间尽量靠近公共交通站点布局和建设,使公共交通站点成为片区内转换核心,构建交通圈、商业圈、生活圈“三圈合一”的城市布局。
  • Exclusive:Cancer prevention and cure
    HU Zhiqiang, YOU Weicheng, PAN Kaifeng, LI Wenqing
    Science & Technology Review. 2023, 41(18): 18-28. https://doi.org/10.3981/j.issn.1000-7857.2023.18.003
    In January 2023, the latest report of American Cancer Statistics in 2023 was published in CA: A Cancer Journal for Clinicians. This report elaborated on the cancer prevalence in America under the COVID-19 pandemic for the first time, described the secular trends in the burden of major cancers, and projected the cancer cases and deaths in 2023. We analyzed the pattern of cancers distribution by geographic area, time, and characteristics of the populations in China and America according to systematical interpretation of the report combined with the cancer statistics in China. We also summarized the current challenges in the development of cancer prevention and control system in China, and provided insights for its construction depending on assessing advancements and underlying reasons of that in America.
  • Promote the spirit of scientists and strive for technological self-reliance and self-improvement
    LU Shengjun, GU Jihuan, LI Ming, GAO Jie
    Science & Technology Review. 2023, 41(17): 40-46. https://doi.org/10.3981/j.issn.1000-7857.2023.17.005
    Qian Xuesen was the founder of China's aerospace industry and an internationally renowned scientist and he also was the outstanding representative of China's scientist spirit. This article summarizes the connotation of Qian Xuesen's scientist spirit from six aspects: patriotism, innovation, seeking truth, dedication, collaboration, and education. Qian Xuesen's scientist spirit has injected a permanent scientific spirit and innovative momentum into China's national defense technology innovation and high-level technological self-reliance and self-improvement.
  • Foreword
    Science & Technology Review. 2023, 41(12): 1-1.
    为了推动长三角地区一体化高质量发展,中国科学院学部于2020年4月设立了“长三角地区地热资源及其综合研究”院士咨询项目。受汪集暘院士的邀请,我全程参加了该项目的工作。2 年来,经过现场调研和研讨,取得了很好的成果。最后,他们将相关成果汇集成册,在《科技导报》予以专集刊出,以飨读者。
  • Exclusive:Real world clinical research of Traditional Chinese Medicine
    XIE Yixuan, YAN Shiyan, CHEN Bo, LIU Baoyan
    Science & Technology Review. 2023, 41(14): 42-50. https://doi.org/10.3981/j.issn.1000-7857.2023.14.005
    With the deepening development of China's reform and opening up and the Belt and Road Initiative, Chinese acupuncture and moxibustion has gradually moved towards the world stage. Under the background of the new era, the clinical application of acupuncture and moxibustion in China has become more extensive, the treatment methods have bloomed, the clinical, basic and theoretical research has been deepened, and the standards and regulations of acupuncture and moxibustion have gradually led the world: The disease spectrum of acupuncture and moxibustion has been continuously expanded, the clinical application has been increasingly extensive; the treatment methods have been innovated and developed; the clinical research has continuously produced high-quality evidence; the standards and specifications have been published one after another; the theoretical system has been constantly improved; the basic research has made breakthroughs; the international development has been deepened, and the localization of acupuncture overseas has been developed rapidly. At the same time, the current development of acupuncture and moxibustion also faces a series of challenges: It is urgent to establish a diagnosis and treatment system that conforms to the rules of acupuncture and moxibustion itself; the evaluation system of clinical efficacy of acupuncture and moxibustion still needs to be improved; the systematic research of acupuncture and moxibustion still needs to be strengthened; the high-quality clinical evidence of acupuncture and moxibustion is still insufficient; the promotion and transformation of acupuncture and moxibustion research results need to be strengthened. Under the new situation of rapid development of science and technology, how to make full use of modern information technology, big data, artificial intelligence to realize the digital transformation and promote the comprehensive development of acupuncture and moxibustion is the only way for the modernization of acupuncture and moxibustion in the future.
  • Exclusive: Environmental pollution and green development
    WEI Xinyu, WANG Yun, ZHANG Ailing
    Science & Technology Review. 2023, 41(11): 96-104. https://doi.org/10.3981/j.issn.1000-7857.2023.11.010
    Combs the characteristics and existing problems of road traffic noise pollution prevention and control in China, analyzes the international experience in road traffic noise pollution prevention and control management. Suggestions for further work are put forward through a comparative study. At present, there are many problems in China's urban road traffic noise, such as strong emission sources, large differences between cities, lack of measures and standards, low noise compliance rate in the areas on both sides of the main traffic line and difficult to solve complaints. From the experience of road traffic noise pollution prevention and control in typical foreign countries, a sound road traffic noise pollution prevention and control standard system should be developed, and joint control of quality standards and emission standards should be adopted. China should issue guidance on road traffic noise pollution prevention and control, that the local government should improve the control standards for road traffic noise emission, and that road traffic noise control should be gradually strengthened.
  • Reviews
    HAN Wenyan, XIONG Yonglan
    Science & Technology Review. 2023, 41(17): 91-101. https://doi.org/10.3981/j.issn.1000-7857.2023.17.011
    At a time of turmoil in the world situation, implementation of scientific system intervention policy is of great significance for effectively dealing with risk challenges. The practice cases of international mission-oriented innovation policy(MOIP)are investigated and compared in terms of of key mission, policy subjects, policy objectives, policy tools and facing up to challenges. It is shown that MOIP has the characteristics of long policy implementation cycle, mission-oriented response to challenges, authority and diversity of policy subjects, multiplicity and specificity of policy objectives, and diversity of policy tools. Suggestions are put forward for China to lay out MOIP, such as strengthening top-level design, scientifically designing strategic direction, strengthening overall coordination, and optimizing and improving policy toolbox.
  • Foreword
    Science & Technology Review. 2023, 41(11): 1-1.
    党的二十大报告指出,要深入推进环境污染防治。中国是全球塑料生产和消费第一大国,党的十八大以来,国家高度重视塑料污染治理,建成了世界上相对完善的塑料循环利用体系,治理成效逐渐显现。但是从总体上看,中国要打赢白色污染防治攻坚战依然面临着诸多挑战。
  • Exclusive: Development Trends of Web 3.0
    CHENG Shenghui, HUANG Tianyi, MENG Yiran, FAN Yuqing
    Science & Technology Review. 2023, 41(15): 22-35. https://doi.org/10.3981/j.issn.1000-7857.2023.15.003
    With the advances in technologies of artificial intelligence and 5G as well as the emerging concepts of blockchain and decentralized management, the next revolution of Internet, Web 3.0, has appeared. It will change the development of Internet and various professions and has thus attracted much attention from both academia and industry. This article analyzes the opportunities and challenges of Web 3.0. First, the differences among Web 1.0, Web 2.0, and Web 3.0 are elaborated, and the technical architecture of Web 3.0 is also studied. Second, through studying existing relevant literature, the current development status and the opportunities of Web 3.0 are summarized from both economic and technological aspects. Third, the challenges faced by Web 3.0 in research and regulation are pointed out. Finally, an outlook on the future development of Web 3.0 is given.
  • Science & Technology Review. 2023, 41(23): 0-0.
    Abstract (189) PDF (100)   Knowledge map   Save
    康复医疗工作是卫生健康事业的重要组成部分。加快推进康复医疗工作发展对全面推进健康中国建设、实施积极应对人口老龄化国家战略、保障和改善民生具有重要意义。
  • Exclusive:Integrated Development of City and Transportation
    ZHENG Jian
    Science & Technology Review. 2023, 41(24): 20-27. https://doi.org/10.3981/j.issn.1000-7857.2023.24.003
    Integrated development in the new era is an important part of high-quality development. Based on a comprehensive summary of the historical achievements and changes in the planning and construction of high-speed railway stations since the 18th National Congress of the Communist Party of China, this paper focuses on the strategic deployment of building a powerful transportation country, systematically analyzes the interactive mechanism and value orientation of the station-city integration, reveals the basic connotation and mode of the station-city integration. Focusing on the design problems such as the separation of station city space, the lack of urban functions, monotonous environment and low space utilization rate, this paper puts forward the construction strategy of the station-city integration to relieve the station-city development dilemma, reconstruct the order of station-city, release the vitality of city and seek the symbiosis of station-city, providing a solution to promote the high-quality coordinated development of high-speed railway stations and cities.
  • Exclusive:Geothermal Energy in the Yangtze River Delta
    YANG Lianping, HUANG Jian, WANG Qinghua, WANG Jiyang
    Science & Technology Review. 2023, 41(12): 66-74. https://doi.org/10.3981/j.issn.1000-7857.2023.12.007
    Geothermal resources are abundant in the Yangtze River Delta, but the degree of exploitation and utilization is relatively low. The geothermal resources development and utilization status, planning and management policy status of three provinces and one city in the Yangtze river delta is summarized in this paper; and the existing problems are analyzed from the aspects of government management, operation and maintenance management of geothermal projects; and then the corresponding countermeasures and suggestions are put forward.
  • Innovation leads selfreliance and selfimprovement—creating a source of high-quality technological
    WANG Fei-Yue, MIAO Qinghai
    Science & Technology Review. 2023, 41(19): 103-112. https://doi.org/10.3981/j.issn.1000-7857.2023.19.012
    From the early use of mathematical tools to explore the mechanism of neural activity, to the use of artificial neural network models to simulate human intelligence, to the solution of specific problems based on deep networks, AI has developed over the past 80 years and has now entered the era of foundation intelligence (FI), which is characterized by its foothold in large models, serving the broad social groups. The development of large models faces a series of challenges. First, the quality and quantity of data necessary for large models training need to be improved. Second, high-end computing resource is limited, and model training has high power consumption and high carbon emissions, which brings environmental problems. Third, it is the socialization of large models that brings about social development problems such as discrimination and prejudice, the spread of false information, invasion of privacy, and impact on employment. In order to overcome the aforementioned challenges, it is essential to build a federal ecosystem (including federal data, federal control, federal management and federal services) with support of block chain and decentralized autonomous organizations (TRUE+DAO, TAO), and provide solutions for the development of artificial intelligence in the new era.
  • Reviews
    LIN Shaofeng, SHI Gang, JIANG Dazhi
    Science & Technology Review. 2023, 41(21): 79-89. https://doi.org/10.3981/j.issn.1000-7857.2023.21.008
    The rapid development of high-speed aircraft, microelectronic devices and other fields puts forward higher requirements for the thermal conductivity of thermal management materials. Graphene with excellent thermal conductivity and electrical conductivity is an ideal new generation of thermal management materials. The research status and development prospect of graphene as a high thermal conductivity material are introduced. Firstly, the preparation methods of graphene materials are summarized, including mechanical peeling, epitaxial growth, chemical vapor deposition and redox. Thermal conductivity mechanisms of different types of graphene materials are discussed. Graphene materials carry out heat conduction through phonons and electrons with phonon heat conduction being the mainstay. The thermal resistance network model and thermal conduction permeability model are discussed. The research progress and application of monolayer or less-layer graphene, graphene film, carbon nanotube/graphene composite film and phase-change polymer/graphene composite materials in the field of thermal management are summarized.
  • Exclusive: Environmental pollution and green development
    ZHANG Yu, MI Junfeng, DU Shengnan
    Science & Technology Review. 2023, 41(11): 52-60. https://doi.org/10.3981/j.issn.1000-7857.2023.11.005
    Under the situation of rapid economic development emissions of nitrogen oxides (NOx) from electric power, metallurgy, chemical industry and other industries have posed a huge threat to the ecological environment and human health. Therefore, the country's NOx emission standards are becoming more and more stringent, NOx governance is facing severe challenges. Traditional NOx treatment methods cannot meet increasingly stringent emission standards and the dielectric barrier discharge technology (DBD) has received widespread attention because of its advantages of safety and cleanliness, low price and simple operation. The recent research progress of NOx removal by dielectric barrier discharge is summarized and discussed, and the NOx conversion rate, reaction conditions and reaction mechanism are mainly reviewed in terms of reactor structure characteristics, power supply characteristics and gas components. At the same time, the conversion enhancement effect of the dielectric barrier discharge technology in cooperation with various catalysts is also summarized. Finally, challenges, obstacles and future development directions of NOx removal using dielectric barrier discharge technology are presented.
  • Exclusive: Theory and Application of Cyberspace Geography
    CHEN Shuai, GUO Qiquan, GAO Chundong, HAO Mengmeng, JIANG Dong, NI Shiyuan, NI Tao
    Science & Technology Review. 2023, 41(13): 14-22. https://doi.org/10.3981/j.issn.1000-7857.2023.13.002
    Map is an effective tool to recognize real space. Cyberspace also needs abstract, symbolic and numerical maps for visualization and cognition. Based on a comprehensive review of existing theories and methods on cyberspace map and from a perspective of visual representation of cyberspace elements and cyberspace knowledge, the current study proposes a concept and connotation of the cyberspace geographic map by synthesizing the concept of“tupu” in both computer science and geography.. Besides, this study introduces the methods and key technologies for cyberspace geographic map construction, and outlooks the application fields from three aspects: cyberspace resource management, cyberspace behavior cognition, and comprehensive analysis of cyberspace events. Mapping the geographical map of cyberspace can associate cyberspace with real space and clearly express the structure of cyberspace. It is a necessary way to realize the cognition of cyberspace behavior and improve the capability of cybersecurity.
  • Science & Technology Review. 2023, 41(11): 0-0.
    Abstract (169) PDF (206)   Knowledge map   Save

    为积极应对“十四五”期间中国生态环境治理面临的挑战,需要加快生态环境科技创新,构建绿色技术创新体系,推动经济社会发展全面绿色转型,建设美丽中国。

  • Papers
    GAN Jianfeng, ZHONG Yunping, RAO Faqiang, QIN Kaiqiang, CAO Ruyang, ZHANG Yiming
    Science & Technology Review. 2023, 41(11): 113-124. https://doi.org/10.3981/j.issn.1000-7857.2023.11.012
    Prestressed cable-stayed bridges are prone to crack due to various loads and temperatures. The traditional finite element method can not accurately describe the generation and expansion of cracks. In this paper, numerical simulation of a prestressed bridge panel is carried out to analyze the origin and long-term evolution of cracks based on the continuousdiscontinuous element method and multi physical field coupling. The results show that the gravity of the bridge panel itself, the cable force and the degree of bending and straightness of the bridge are not the main reasons for cracks of the bridge and that the prestress of the reinforcement hinders the cracks to a certain extent. The long-term cyclic effect of temperature plays a leading role in the initial crack of the bridge panels, and repeated loading of vehicle dynamic load in the later period makes the initial cracks further expand. The research results of this paper can provide a certain theoretical reference for analyzing causes of
    bridge cracks.
  • Exclusive: Environmental pollution and green development
    ZHOU Kaile, YANG Lin, LI Xiatong, HAN Pan, SUN Weining, CHENG Gang
    Science & Technology Review. 2023, 41(11): 89-95. https://doi.org/10.3981/j.issn.1000-7857.2023.11.009
    Catalytic iron internal electrolysis coupled biological phosphorus removal can effectively solve the problems of low efficiency of biological phosphorus removal, large dosage of chemical phosphorus removal and difficult process control. It has a broad application prospect. This paper introduces the mechanism of phosphorus removal by catalytic iron internal electrolysis coupled with biological method, emphatically analyzes the influence of three coupling modes of catalytic iron internal electrolysis and biological method on phosphorus removal effect, and points out that the biological preprocessing has a strong ability to resist impact load and can simultaneously realize phosphorus removal, reduce biological toxicity and improve the biodegradability of wastewater. In the biological built-in process, the catalytic iron internal electrolysis filler as the biological carrier greatly improves the number and activity of microorganisms, highlights the electrochemical high-efficiency phosphorus removal, and strengthens the biological nitrogen and phosphorus removal capacity. The biological post processing can effectively slow down the fouling on the surface of packing but it is rarely concerned because of its effluent chromaticity. It is concluded that new materials for catalytic iron internal electrolysis and their coupling process with biological method are still the main research direction in the future.
  • Exclusive:Geothermal Energy in the Yangtze River Delta
    PANG Zhonghe, KONG Yanlong, GONG Yulie, WANG Jiyang
    Science & Technology Review. 2023, 41(12): 12-19. https://doi.org/10.3981/j.issn.1000-7857.2023.12.002
    After reviewing the development of global geothermal industry as well as that in China, this paper systematically combs the key issues including the potential and the occurrence of geothermal resources in the Yangtze River Delta region, which has been mapped and announced by the central government for integrated economic development, the innovative technologies for geothermal comprehensive utilization, and the innovative models for geothermal industry development. On this basis, the paper puts forward strategic suggestions for the development of geothermal industry in the region. The main understanding is that in the economically developed Yangtze River Delta region, the population density is high, the proportion of building energy consumption is also high, and in recent years, the air temperature in the south has repeatedly set new low, and the demand for heating and cooling of residents is increasing, while relying on coal heating causes the deterioration of air quality in winter, and the shortage of clean energy is increasing, which is a difficult demand to meet in the energy sector. It can be concluded that, the Yangtze River Delta region is rich in geothermal resources, and has a large market demand and a good foundation for development and utilization, but the degree of development and utilization is still insufficient. If the top-level master plan is formulated, which is then incorporated into local social and economic planning, and guided by supportive policies, the comprehensive development and utilization of geothermal energy is expected to make greater contributions to the energy transition and meeting the goal of carbon neutrality.
  • Reviews
    YE Juyi, TAN Heyi, WU Jun, CUI Heng
    Science & Technology Review. 2023, 41(17): 78-83. https://doi.org/10.3981/j.issn.1000-7857.2023.17.009
    The application of artificial intelligence(AI) in the military field has recently further improved the overall response ability and execution efficiency of information-based joint operations. Electronic countermeasures combat operations take place in an invisible space, it is more urgent for troops to get AI technology support in a fast-changing electromagnetic situation. By sorting out the main application modes of AI technology in military field, this paper systematically studies the application path of AI in electronic countermeasures from a perspective of operational integrity and puts forward specific thoughts and suggestions for combat command,warfare method application,equipment research and development, and intelligent cooperation, so as to accurately serve the electromagnetic field struggle and improve intelligent combat ability.
  • Exclusive: Environmental pollution and green development
    LI Huanhuan, LI Haihong, WU Danping
    Science & Technology Review. 2023, 41(11): 80-88. https://doi.org/10.3981/j.issn.1000-7857.2023.11.008
    Taking citric acid-modified pepper straw-based biochar as the object, an optimal process for the adsorption process of methylene blue was studied. The dosage of modified carbon, methylene blue concentration, adsorption time, temperature, solution pH, and shaker speed were taken as investigation factors and methylene blue adsorption as investigation index, the Plackett-Burman (P-B) design was used to screen out the factors of significant effects. And further combined with the Box-Behnken Design (BBD) response surface method, the significant factors were optimized and verified and analyzed to obtain the optimal adsorption process parameters. The results showed that among the selected 6 factors, the order of significance affecting the adsorption capacity of methylene blue was modified carbon dosage > methylene blue concentration > shaking table rotation speed. The interaction effect between the significant factors was as follows: dosage of modified carbon and rotating speed of shaking table > dosage of modified carbon and concentration of methylene blue > concentration of methylene blue and rotating speed of shaking table. After optimization, the optimum adsorption conditions were obtained as follows: the dosage of modified carbon was 45.40 mg, the concentration of methylene blue was 86.00 mg/L, and the rotating speed of the shaking table was 130 r/min. Under these conditions, the adsorption capacity of methylene blue could reach 41.03 mg/g, the difference between the verified value and the model predicted value of 42.24 mg/g was 2.87%, therefore, the P-B/BBD method is stable and effective in optimizing the adsorption process of modified biochar for methylene blue, which provides a data reference for optimizing the adsorption process of carbon materials.
  • Foreword
    Science & Technology Review. 2023, 41(14): 1-1.
    中医药是中国重要的卫生、经济、科技、文化和生态资源,传承创新发展中医药是新时代中国特色社会主义事业的重要内容,是中华民族伟大复兴的大事。
  • Reviews
    HAN Wei, LIU Hongzun,DING Rui
    Science & Technology Review. 2023, 41(16): 100-112. https://doi.org/10.3981/j.issn.1000-7857.2023.16.009
    Based on the theoretical and practical background of regional innovation ecosystem, this paper reviews the literature on the concept, research paradigm, evaluation and governance of regional innovation ecosystem. In summary, the research of regional innovation ecosystem in China has gotten some achievements and has achieved many breakthroughs in serving regional economic and social development. In the future, breakthroughs can be made in the following aspects: Firstly, the context of the era background should be expanded. Secondly, the research area and evaluation indicators need to be further enriched and adjusted; Thirdly, the elements of research content should be enriched.
  • Suggestions
    LIU Chen, CHEN Jing, MAO Yaping, ZENG Xuefu, ZHAO Yu, WANG Zhongqi
    Science & Technology Review. 2023, 41(11): 19-25. https://doi.org/10.3981/j.issn.1000-7857.2023.11.002
    Common prosperity is the essential requirement of socialism and is an important feature of Chinese modernization. As a pioneer of China's modernization, transportation needs to play a greater role in promoting common prosperity. The study reviews the historical practices of transportation services in promoting common prosperity at different stages. It summarizes the important role played by transportation and discusses the difficulties and problems that transportation development does not adapt to the requirements of new development stage when China solidly promotes common prosperity. Specific suggestions are presented in terms of building a modern high-quality comprehensive transportation system, narrowing regional and urban-rural gaps in transportation development, improving the travel conditions for low-income and vulnerable groups, and improving the development level of ecological civilization and spiritual civilization in transportation.
  • Exclusive: Environmental pollution and green development
    YU Miaofei, MI Junfeng, DU Shengnan, ZHANG Xuejia
    Science & Technology Review. 2023, 41(11): 70-79. https://doi.org/10.3981/j.issn.1000-7857.2023.11.007
    With the development of industrial production, the emission of volatile organic compounds and pollutant components continue to increase. A variety of technologies and processes for treatment of VOCs have emerged. This paper briefs the typical characteristics of VOCs, summarizes and compares corresponding physical, chemical and biological treatment technologies, and summarizes in detail the treatment technologies such as adsorption, plasma and biological methods. The traditional treatment technology has low cost, mature technology and large processing capacity, but it can not meet the current situation of industrial production, especially decomposition of a variety of mixed polluting gases. Emerging technologies and combined technologies have the advantages of high purification efficiency, no secondary pollution and low energy consumption, which will be a continuous research hotspot in the future. By analyzing the current emission characteristics of VOCs and the corresponding treatment technologies, this paper discusses the most significant advantages and disadvantages of each technology as well as the difficulties that need to be overcome in the future. Finally, the future improvement direction and trend of VOCs treatment methods are put forward.
  • Exclusive:Real world clinical research of Traditional Chinese Medicine
    ZHOU Xuezhong, WANG Shihua,ZHANG Di, LUO Lin, HUANG Xingxian,LAN Tian, ZHANG Runshun, GAO Zhuye,LI Xiaodong, HE Liyun, YANG Zhuoxin, ZENG Yide, LIU Baoyan
    Science & Technology Review. 2023, 41(14): 22-31. https://doi.org/10.3981/j.issn.1000-7857.2023.14.003
    Based on the research progress in real-world clinical study and artificial intelligence technology domestically and internationally, aiming at the issues of the concepts, methods, and technologies for conducting high-quality TCM real world clinical research, this article focuses on the challenges and solutions for the transformation of real world research paradigms, the establishment of clinical problem-oriented research models, the quality of real world data, and the methodology of inferring high-quality causal evidences. With a view to fully understanding the importance and difficulty of real world TCM research for the high-quality development of TCM from the ontological perspective of TCM clinical diagnosis and treatment, it is expected to provide reference for establishing a new real-world research system with TCM characteristics and creating a new model of TCM clinical research.
  • Exclusive:Real world clinical research of Traditional Chinese Medicine
    LAI Keyun, LAI Changsheng, HE Liyun, WANG Guangjun, CHEN Xiao
    Science & Technology Review. 2023, 41(14): 101-108. https://doi.org/10.3981/j.issn.1000-7857.2023.14.012
    Graph neural network (GNN) is another major development after convolutional neural network, and it belongs to an emerging deep learning method in the field of artificial intelligence. It mainly preserves the topological information in graph data through end-to-end learning from graph to prediction, and overcomes the defect that traditional deep learning cannot be applied to non-Euclidean data. This paper demonstrates the advantages of GNN for processing complex non-Euclidean data through the application progress of GNN in brain-related mental and nervous system diseases. GNN shows great potential in the medical field, furthermore, the network structure of the syndrome differentiation system of Traditional Chinese Medicine (TCM) is similar to the structure of the brain active area, and it is highly compatible with the schematic unstructured data processed by GNN, so GNN has great application prospect in the field of TCM. This article summarizes the application of GNN in the field of TCM and brain-related mental and nervous system diseases, and analyzes the advantages of TCM diagnosis and treatment models from the theoretical level, in order to explore and build a GNN-based model for fitting with the thinking mode of "syndrome differentiation and treatment" and realizing the objective diagnosis in TCM. It provides new means for solving the problems of complex relationship representation in TCM and mining the individual characteristics of patients. And it also provides a favorable tool for revealing the potential mechanism of TCM from multiple perspectives, and developing and improving the science of TCM.
  • Reviews
    JIAO Han, WU Chengwei, CHI Haitao, ZHANG Wei
    Science & Technology Review. 2023, 41(18): 72-83. https://doi.org/10.3981/j.issn.1000-7857.2023.18.010
    Osteoarthritis (OA) is a degenerative disease that is prone to occur in the middle-aged and elderly groups. It can erode articular cartilage and its affiliated organization, and seriously affect the life of patients. Hydrogels have good biocompatibility and excellent mechanical properties. Functional hydrogels can make up for the shortcomings of short drug action time and the difficulties to cure OA in common therapy approaches. In this article, we review the recent advances of hydrogel as a carrier to treat osteoarthritis from the aspects of drug treatment of osteoarthritis, cartilage defect repair, and synovial fluid repair. The anti-inflammatory and analgesic mechanism of drug release hydrogel, the mechanism of cartilage repair of cartilage defect repair hydrogel and the joint lubrication mechanism of joint lubrication hydrogel were discussed. On these bases, we also summarize the existing problems and propose further development direction of hydrogel in the treatment of OA.
  • Innovation leads selfreliance and selfimprovement—creating a source of high-quality technological
    XIANG Shaolin,GUO Mao,PU Bo,FANG Liulu,LIU Shujuan,WANG Shaoyong,KONG Xianwei,ZHENG Tuo,LIU Jun,ZHAO Ming,HAO Qinfen,SUN Ninghui
    Science & Technology Review. 2023, 41(19): 113-131. https://doi.org/10.3981/j.issn.1000-7857.2023.19.013
    Abstract (152) PDF (1050) HTML   Knowledge map   Save
    Chiplet technology is a new generation of integrated circuit technology that has emerged in recent years. It has been widely recognized by the industry due to its excellent characteristics such as improving yield, breaking the limit of reticle size, flexibility in chip architecture, and standardization of IP supply chain. To further promote the development of chiplet technology in China, this article summarizes the application scenarios of chiplet technology, analyzes various core component technologies, elaborates on various technical challenges that may arise in the development of chiplet technology, reviews the development of China’s chiplet standards, and finally, puts forward some suggestions for the development of chiplet technology in China.
  • Innovation leads selfreliance and selfimprovement—creating a source of high-quality technological
    LI Yuanyuan
    Science & Technology Review. 2023, 41(19): 149-154. https://doi.org/10.3981/j.issn.1000-7857.2023.19.017
    The pioneering breakthroughs in materials continue to trigger explosive growth in high-tech and emerging industries.Advanced materials have become a key area of focus and development for countries to seize the technological commanding elevation, and are a fundamental and leading industry for economic and social development. The development of advanced materials determines the level of development in high-tech, emerging industries, high-end manufacturing and major engineering.This paper systematically analyzes the current development status of advanced materials field in China, summarizes major technology plans and development system capabilities, and proposes strategic directions and policy measures for the future development in advanced materials field of China.