Research And Suggestions On Top-Down Design Methodology Of High-End Cnc Machine Tools,
2024
Key Laboratory of Mechanism Theory and Equipment Design of Ministry of Education, Tianjin University, Tianjin 300354, China
Research And Suggestions On Top-Down Design Methodology Of High-End Cnc Machine Tools, Weiguo Gao, Dawei Zhang, Bingye Liu
Bulletin of Chinese Academy of Sciences (Chinese Version)
The strategic significance of top-down design theory, method and technical system of high-end CNC machine tools is expounded, so as to realize the independent research and development of high-end CNC machine tools, satisfy the requirements of high-end users in key fields and maintain the independence and control of the core technologies. The top-down design methods and some key scientific problems are proposed, including static-dynamic stiffness design, geometric accuracy design, thermal balance design, and assembly process accuracy design, based on the spatial position and attitude error, relative dynamic flexibility of the working space, through the design, processing and assembly process. The …
Development Of China’S Ultra-Precision Equipment Industry And Support Of Patient Capital,
2024
China Development Bank, Beijing 100031, China
Development Of China’S Ultra-Precision Equipment Industry And Support Of Patient Capital, Hong Jiang
Bulletin of Chinese Academy of Sciences (Chinese Version)
As a core field of high-end manufacturing, China’s ultra-precision equipment industry has achieved rapid development driven by policy support and technological advancements. Nevertheless, it still faces challenges such as technological bottlenecks, international competition, and funding shortages. Its characteristics—long R&D cycles, high risks, and substantial capital investments—are misaligned with the risk-averse nature of traditional financial systems, urgently requiring the support of “patient capital”. Although China possesses a vast pool of long-term capital (e.g., social security funds and insurance funds), systemic gaps prevent these funds from being effectively transformed into patient capital that supports frontier technologies. This study argues that developing patient …
Breakthrough Path Of High-End Equipment Manufacturing Driven By Independent Innovation—From Perspective Of R&D And Industrialization Of High-End Wafer Stage Of Lithography Machine,
2024
Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China
Breakthrough Path Of High-End Equipment Manufacturing Driven By Independent Innovation—From Perspective Of R&D And Industrialization Of High-End Wafer Stage Of Lithography Machine, Yu Zhu
Bulletin of Chinese Academy of Sciences (Chinese Version)
Focusing on R&D and industrialization of wafer stage of high-end lithography machine, this study deeply analyzes the development status and core challenges of China’s high-end equipment manufacturing industry. The study finds that although China’s high-end equipment manufacturing industry has achieved scale expansion and technological innovation, there are still deficiencies in the independent control of core technologies, facing the dual bottlenecks of technological innovation and basic capabilities. By analyzing the independent innovation practices of wafer stage, including aspects such as core technology breakthroughs, basic capacity enhancements, industrial chain collaboration, and the construction of industry-university-research support systems, the internal laws for the …
Challenges And Opportunities For Semiconductor Equipment Facing 15th Five-Year Plan,
2024
Institute of Microelectronics, Chinese Academy of Sciences, Beijing 100029, China
Challenges And Opportunities For Semiconductor Equipment Facing 15th Five-Year Plan, Tianchun Ye, Yu Zhu, Guoming Zhang, Xiaoli Du, Zhenlin Lei, Pengpeng Yuan
Bulletin of Chinese Academy of Sciences (Chinese Version)
During the “15th Five-Year Plan”, China’s semiconductor equipment industry is facing the dual challenges of technological blockade and supply chain decoupling. It needs to shift from “catching up and replacing” to “path innovation” to break through its dependence on the international technology system. This study analyzes three core needs: supporting self-reliance (breaking through the bottleneck of advanced process equipment and parts), building an innovation ecosystem with Chinese characteristics (exploring new technology paths such as GAA and 3D integration), and promoting intelligent upgrading (integrating AI and digital technology). At the same time, it proposes to use the strategy of “re-globalization” to …
Generative Ai-Driven Paradigm Shift For Future Industrial Innovation,
2024
School of Public Policy & Management, Tsinghua University, Beijing 100084, China
Generative Ai-Driven Paradigm Shift For Future Industrial Innovation, Lan Xue, Lidan Jiang
Bulletin of Chinese Academy of Sciences (Chinese Version)
Generative AI, as the core engine triggering a paradigm shift in future industrial innovation, is propelling the next generation of artificial intelligence toward a “new qualitative state” characterized by deep thinking and long-chain reasoning. This study, grounded in the emerging attributes of generative AI-driven future industrial innovation, examines the mutually constitutive relationship between generative AI and industrial innovation in the digit-intelligence era. Through three analytical dimensions, namely, AI-driven transformation of knowledge production paradigms, the reconstruction of technological agency spaces, and the unleashing of new qualitative factor values, it thoroughly deciphers the paradigm evolution driven by generative AI. Furthermore, it proposes …
Current Status And Development Trends Of Domestic High-End Equipment In Aero-Engine Manufacturing,
2024
Kede CNC Co. Ltd., Dalian 116000, China
Current Status And Development Trends Of Domestic High-End Equipment In Aero-Engine Manufacturing, Hu Chen, Shilin Jiang, Hongtao Tang, Mingshan Song, Haowei He
Bulletin of Chinese Academy of Sciences (Chinese Version)
Aero-engines are known as the “pearl on the crown of industry”. As global manufacturing competition intensifies, achieving independent control of high-end equipment in aero-engine manufacturing is crucial for China to become a global aviation power. This paper reviews the development, achievements, challenges, and future directions of domestic five-axis machine tools, planers, 3D printing equipment, and micro-hole processing equipment in this field. Domestic five-axis machine tools have made progress through structural innovation and process optimization, gradually replacing imports. Planers have advanced in intelligence and precision, 3D printing equipment in multi-axis coordination and material diversity, and micro-hole processing equipment in compound processes …
Present Situation, Problems And Suggestions Of Advanced Optical Ultra-Precision Manufacturing Technology,
2024
Ji Hua Laboratory (Guangdong Provincial Laboratory of Advanced Manufacturing Science and Technology), Foshan 528200, China
Present Situation, Problems And Suggestions Of Advanced Optical Ultra-Precision Manufacturing Technology, Xin Zhang, Kuo Hai, Zizheng Li, Yinghuai Zhang, Binzhi Zhang, Yunfei Zhang, Zhongming Zang, Peng Zeng, Mingtao Wu, Kailong Li, Lisong Yan, Taixi Cehn, Yigang Qian, Hongfei Jiao
Bulletin of Chinese Academy of Sciences (Chinese Version)
With the continuous development of key fields such as laser nuclear fusion, space-to-earth observation, deep space exploration, and extreme ultraviolet lithography, the demand for optical components with high surface shape accuracy and high surface quality is increasing. Advanced optical ultra-precision manufacturing technology has become the core pillar of the national high-end manufacturing field. In this paper, the research status of advanced optical ultra-precision manufacturing technology in China is described with the focus on material preparation technology of optical components, ultra-precision forming, polishing, testing and surface treatment technology of components. The existing problems and countermeasures in this field in China are …
Promoting Construction Of China’S Modern Industrial System By “ Multi-Tracking” Research And Innovation Model,
2024
The Institute for International Affairs, Qianhai, The Chinese University of Hong Kong, Shenzhen, Shenzhen 518172, China
Promoting Construction Of China’S Modern Industrial System By “ Multi-Tracking” Research And Innovation Model, Yongnian Zheng, Lanmeng Xu
Bulletin of Chinese Academy of Sciences (Chinese Version)
The core of the competition between large nations during the fourth industrial revolution is centered on economic resilience, which is based on the industrial system of each nation. The key takeaway from the historical experience of industrial development in the United Kingdom and the United States is that the building of a modern industrial system must prioritize the balanced development of industries rather than concentrating solely on the financial and service sectors and ignoring the manufacturing sector, which leads to industrial hollowing-out. China ought to build a modern industrial system that possesses the five characteristics, including industry comprehensiveness, large capacity, …
Policy Practices And Countermeasures Analysis On Deep Integration Of Technological Innovation And Industrial Innovation,
2024
China Science and Technology Assessment and Achievement Management Research Association, Beijing 100081, China
Policy Practices And Countermeasures Analysis On Deep Integration Of Technological Innovation And Industrial Innovation, Defang He, Tao Chen, Hui Liu, Fangjuan Yang
Bulletin of Chinese Academy of Sciences (Chinese Version)
Technological innovation serves as the strategic foundation for driving high-quality development and building a modern industrial system. To compete for global leadership in science, technology, and industrial advancement, major economies worldwide are reshaping their policy frameworks to accelerate the development of cutting-edge technologies and future industries. This study analyzes the intrinsic mechanisms and policy evolution of the integration between technological innovation and industrial innovation. By examining domestic and international case studies—such as integrated circuits, mRNA vaccines, new energy vehicles, and photovoltaics—it reveals how strategic guidance and policy coordination facilitate the convergence of innovation chains and industrial chains. Furthermore, the study …
Study On Management And Mechanism Of National Research Institutions To Organize Critical And Core Technologies R&D Activities,
2024
Institutes of Science and Development, Chinese Academy of Sciences, Beijing 100190, China; School of Public Policy and Management, University of Chinese Academy of Sciences, Beijing 100049, China
Study On Management And Mechanism Of National Research Institutions To Organize Critical And Core Technologies R&D Activities, Xiaoxi Xiao, Xiang Shen
Bulletin of Chinese Academy of Sciences (Chinese Version)
As an important component of the national strategic scientific and technological forces, national research institutions, especially those in high-tech fields, have important missions and responsibilities in developing critical and core technologies. This study firstly analyzes the mission and function of national research institutions in critical and core technology research, and then illustrates that national research institutions are capable of undertaking critical and core technologies that need large and long cycle of investments and are of high risk, which means universities and enterprises could not or have no willingness to carry out. In details, national research institutions are able to conduct …
Case Study And Enlightenment Of Key And Core Technology Research,
2024
China Center for International Economic Exchanges, Beijing 100050, China
Case Study And Enlightenment Of Key And Core Technology Research, Yanni Han
Bulletin of Chinese Academy of Sciences (Chinese Version)
Since the reform and opening up, China has made significant progress in economic and technological development. Nevertheless, the complex international situation has made us aware that there are still some visible and invisible key core technologies under the control of others, bring us into a passive situation in international competition. Technological advantages are increasingly being applied in political confrontations between nations, serving as important means of sanctions and invisible weapons. Being dependent on others for key and core technologies has become a hidden danger to China’s economic and social development. Based on case studies of some successful key and core …
Rethinking Supply Chains: Mitigating The Risk Of Chinese Dependence And Protecting Us Semiconductor Intellectual Property,
2024
Liberty University
Rethinking Supply Chains: Mitigating The Risk Of Chinese Dependence And Protecting Us Semiconductor Intellectual Property, Jamison Finnamore
Helm's School of Government Conference - 2021-2024
This paper explores the complex economic interdependence between the US, China, and Taiwan, specifically in the semiconductor industry. China’s increased aggression and intellectual property (IP) theft threatens to unbalance the iron triangle of US, China, and Taiwan trade relations. The problem overview elaborates on Taiwan’s crucial role in the semiconductor supply chain, and China’s threat against it. The argument is made that the US must take a nuanced and multifaceted approach to solving the diplomatic, economic, and military policy problem. Criteria for success are outlined, emphasizing the need to address root causes and not compromise US commitment to a free …
Establishing Networked Territorial Spatial Pattern To Serve New Development Pattern,
2024
Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China; Urban and Regional Development Strategy Committee, Chinese Association of Development Strategy Studies, Beijing 100190, China
Establishing Networked Territorial Spatial Pattern To Serve New Development Pattern, Jiaming Li, Jiaoe Wang
Bulletin of Chinese Academy of Sciences (Chinese Version)
A networked territorial spatial pattern, centered around major strategic corridors, plays a crucial role in supporting the construction of the new dual-circulation development pattern. The “Two Horizontals and Three Verticals” major strategic corridors that have been formed can effectively promote the concentration of socio-economic factors in major urban agglomerations. However, there exists a mismatch between the north-south vertical strategic corridors and the east-west socio-economic linkages and transportation corridors. Besides, the existing strategic corridors lack sufficient horizontal support for the Beijing-Tianjin-Hebei urban agglomeration, and the land and sea corridors exhibit weak horizontal driving effect and insufficient connection with external corridors. “Three …
Layout Of Comprehensive Functional Regions And Recent Regional Guidelines In China,
2024
Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
Layout Of Comprehensive Functional Regions And Recent Regional Guidelines In China, Fengjun Jin, Zhuo Chen, Jie Fan
Bulletin of Chinese Academy of Sciences (Chinese Version)
The overall strategy of the “four major sectors”, the regional major strategies and the major functional oriented zoning strategy have strongly supported the regional coordinated development in China. However, it also brings the risk of exacerbating the imbalance and incoordination of regional development due to strategic differences and segmentation. Based on an analysis of the trends in regional coordinated development in China, this study puts forward the layout of China’s comprehensive function regions, which divides the mainland of China into 10 regions: the Beijing-Tianjin-Hebei region, the Yangtze River Delta region, the middle reaches of Yangtze River basin, the upper reaches …
Strategic Priorities Of China's Urbanized Areas During 15th Five-Year Plan Period,
2024
Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101,
China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
Strategic Priorities Of China's Urbanized Areas During 15th Five-Year Plan Period, Wei Qi, Jie Fan, Jiaming Li, Yu Li
Bulletin of Chinese Academy of Sciences (Chinese Version)
Urbanized areas are areas whose main function is to provide industrial and service products. During the 15th Five-Year Plan period, the urbanization rate of China’s population will exceed 70 percent, thus entering a long-time stage of high urbanization levels. The strategic positioning of urbanized areas will be defined as county-level administrative districts with a high concentration of scientific and technological innovation resources, new quality productivity, and new-type industrialization. In terms of strategic layout, the scope of urbanized areas will be optimized to promote the concentration of population and economy in urban agglomerations, metropolitan areas, and central cities, and to strengthen …
Improve Policy System Of Main Functional Zones In National Spatial Planning,
2024
China Land Surveying and Planning Institute, Beijing 100035, China
Improve Policy System Of Main Functional Zones In National Spatial Planning, Fan Qi, Siqi Qiu, Chengshuangping Zhao, Jianglong Chen, Siyu Shao, Bangrui Liu
Bulletin of Chinese Academy of Sciences (Chinese Version)
This study analyzes in detail the effectiveness and existing problems of the current policy implementation of the main functional zone in the “multi planning and integration” national land spatial planning system, and proposes an overall idea of systematizing, differentiating, coordinating, and incentivizing the policy system of the main functional zone in the new era of national land spatial governance. From the perspectives of strengthening the top-level design of policy systems, classifying and improving policy tools for the main functional zone, strengthening comprehensive policy coordination, and improving policy implementation evaluation mechanisms, the policy recommendations are proposed for improving and implementing the …
Strengthen And Optimize Professional Talent Team Building To Enhance Effectiveness Of Large-Scale Research Infrastructures,
2024
School of Entrepreneurship and Management, ShanghaiTech University, Shanghai 201210, China;
Strengthen And Optimize Professional Talent Team Building To Enhance Effectiveness Of Large-Scale Research Infrastructures, Xiyi Yang, Lingling Zhang, Xielin Liu, Xiaoyu Zhou
Bulletin of Chinese Academy of Sciences (Chinese Version)
The construction and operation of large-scale research infrastructures involves not only basic scientific research issues, but also complex engineering and management issues. Therefore, strengthening and optimizing professional talent team-building is a key factor in comprehensively improving the effectiveness of large-scale research infrastructures. However, current management system of these infrastructures pays insufficient attention to professional engineering and technical talents and management talents in terms of financial support, talent evaluation, and incentive system construction, which has seriously reduced the stability and work enthusiasm of these talents, which in turn directly restricts the scientific and social benefits of the infrastructures. By investigating several …
Evolution, Stage Characteristics And Governance Model Transformation Of China's Low-Carbon Policy,
2024
School of Economics and Management, Beihang University, Beijing 100191, China; Lab for Low-carbon Intelligent Governance, Beihang University, Beijing 100191, China; Beijing Key Laboratory of Emergency Support Simulation Technologies for City Operations, Beihang University, Beijing 100191, China
Evolution, Stage Characteristics And Governance Model Transformation Of China's Low-Carbon Policy, Yigang Wei, Jiawei Shi, Guannan Xu
Bulletin of Chinese Academy of Sciences (Chinese Version)
A systematic review of China’s low-carbon policy and paradigm transformation is imperative for establishing a well-designed policy system to achieve the “dual carbon” goals. Based on the theory of policy change, this study constructs an analytical framework of “policy objectives—policy themes—policy fluctuations”. This study uses text mining techniques and policy measurement methods to analyze 1 743 low-carbon policies implemented in China from 2000 to 2021. The study summarizes the stage characteristics and evolutionary path of low-carbon policy development in China, evaluates the contribution of each policy theme at different stages, and portrays the paradigm shift in low-carbon governance. The findings …
Hu Haiyan: Strengthen Governance Of Science And Technology Ethics And Select And Cultivate Outstanding Talents,
2024
Chinese Academy of Sciences
Hu Haiyan: Strengthen Governance Of Science And Technology Ethics And Select And Cultivate Outstanding Talents, Editorial Board Of Bulletin Of Chinese Academy Of Sciences
Bulletin of Chinese Academy of Sciences (Chinese Version)
No abstract provided.
Editorials For Special Topic "Artificial Intelligence And Future Society",
2024
Chinese Academy of Sciences
Editorials For Special Topic "Artificial Intelligence And Future Society"
Bulletin of Chinese Academy of Sciences (Chinese Version)
No abstract provided.
