Ke Ji Ri Bao
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“凝视”太阳,捕捉这道“光”——全球首台中红外波段太阳磁场望远镜启用
Ke Ji Ri Bao· 2025-10-20 09:22
Core Insights - The AIMS telescope, a significant advancement in solar magnetic field observation, has been officially launched at an altitude of 4000 meters in Qinghai, China, marking a milestone in international solar research [1][2][4] Group 1: Technological Breakthroughs - The AIMS telescope represents the first dedicated instrument for measuring solar magnetic fields in the mid-infrared spectrum, filling a critical gap in international solar observation capabilities [1][2] - The telescope has achieved a measurement precision improvement by an order of magnitude, transitioning from indirect to direct measurement methods [2][3] - Key technological advancements include the use of a 12.3-micron mid-infrared observation method and the successful measurement of the Zeeman splitting, enhancing measurement precision to better than 10 Gauss [3] Group 2: Construction Challenges - The construction of the AIMS telescope faced significant challenges due to the harsh high-altitude environment, requiring innovative solutions for transporting materials and ensuring operational functionality [4] - The project timeline included milestones such as the start of dome construction in 2020, completion of the main telescope structure by the end of 2022, and the commencement of trial observations in September 2023 [4] - Technical difficulties included issues with the optical system due to low temperatures and electromagnetic interference, which were resolved through extensive troubleshooting efforts [4] Group 3: Future Prospects - The AIMS telescope has entered the scientific output phase, with its data expected to support advanced research in solar physics and space weather forecasting [5] - Future plans include developing collaborative observation strategies that integrate mid-infrared measurements with multi-band observations to further explore unresolved questions about solar magnetic fields [5]
新型铁路信号模拟试验装置投入使用
Ke Ji Ri Bao· 2025-10-20 09:22
Core Insights - The new railway signal simulation testing device developed by China Railway Sixth Group's Electric Engineering Company has been officially put into use, significantly transforming traditional testing methods and enhancing safety for railway operations [1][2] - The device integrates multiple technological innovations, addressing pain points such as reliance on manual operation, inefficiency, and lack of repeatability in traditional testing methods [1] Summary by Sections Technological Innovation - The device combines three core technologies: computer software design, embedded hardware, and CAN bus communication, resulting in a highly adaptable signal simulation testing apparatus [1] - It consists of three parts: a panel, a support frame, and a testing simulation device, which accurately replicates train operation dynamics through three types of simulation circuits [1] Operational Efficiency - The testing process is fully visual, with results that can be stored and retrieved, and the terminal is highly integrated and portable, allowing tests to be conducted without disrupting normal train operations [1] - In the renovation of Beijing Fengtai Station, the device demonstrated significant practical and economic advantages, such as replacing test bulbs with 1.5 microfarad capacitors, saving 120 units that can be reused [1] - The need for signal transformers is eliminated, reducing equipment by approximately 30 units per station, and the number of testing personnel is cut from 6-7 to 3, resulting in a total labor hour savings of about 120 days across the testing period [1] Recognition and Impact - The device has received multiple honors, including the Hebei Province Construction Industry Science and Technology Progress Award, and has been successfully applied in over 10 station renovations, significantly improving testing accuracy and reducing construction costs [2]
“泰坦”星中无法相容物质竟能混合 为研究生命起源前化学过程提供新视角
Ke Ji Ri Bao· 2025-10-20 09:22
这一突破性发现源于一个未解之谜:在泰坦大气中生成的氰化氢最终去了哪里?NASA喷气推进实验室 团队在接近90开尔文(约零下180摄氏度)的极低温下,将固态的氰化氢与液态的甲烷和乙烷混合,并 利用激光光谱技术进行分析。他们发现光谱信号显示出异常变化。 瑞士团队就此提出了一个看似违背化学常识的假设:甲烷或乙烷是否可能与氰化氢形成混合晶体?这直 接挑战了"相似相溶"的化学原则。但最终结果表明,在泰坦的低温条件下,碳氢化合物确实能渗透进氰 化氢的晶格结构中,形成一种被称为共晶的新物质,计算模拟出的光谱特征也与NASA的实验数据高度 吻合。 这一发现具有深远意义。氰化氢在多种生命前体分子的非生物合成中可能扮演关键角色,例如构成蛋白 质的氨基酸和构成遗传密码的核碱基。同时,该成果也表明化学的边界正在被重新定义。(记者张梦 然) 瑞典查尔默斯理工大学与美国国家航空航天局(NASA)的研究团队通过对火星最大卫星"泰坦"的分 析,取得了一项出人意料的发现。研究表明,在极低温环境下,通常无法相容的物质竟能混合,这一现 象为生命起源之前的化学过程提供了新视角,同时挑战了化学中长期被接受的基本规则,并加深了人们 对太阳系行星及卫星的 ...
我国科研人员实现温和条件下合成亚纳米级高熵合金
Ke Ji Ri Bao· 2025-10-20 09:22
Core Insights - The research team led by Professor Xiong Yujie from Anhui Normal University, in collaboration with the University of Science and Technology of China, has successfully created sub-nanometer high-entropy alloys using laser irradiation, which can incorporate up to ten different metal elements [1][2] - This innovative method overcomes traditional high-temperature synthesis limitations, allowing for the production of high-entropy alloys at milder conditions and achieving smaller particle sizes [1] Group 1: Research Methodology - The team utilized laser irradiation technology to achieve uniform mixing of multiple metals under mild conditions, resulting in the production of sub-nanometer high-entropy alloy particles [1] - The nanosecond pulsed laser rapidly increases the surface temperature of the particles to over 2000 degrees Celsius and then cools them at a rate exceeding one billion degrees per second, enabling precise control over particle size [1] Group 2: Applications and Performance - High-entropy alloys exhibit significant potential in the renewable energy sector, particularly as ideal catalyst materials due to their unique structure and properties [2] - The sub-nanometer high-entropy alloy composed of gold, platinum, ruthenium, rhodium, and iridium demonstrates exceptional catalytic activity and stability in hydrogen production through water electrolysis, outperforming current commercial platinum-carbon and ruthenium dioxide catalysts [2] - The new laser synthesis method greatly expands the material system and applicability of high-entropy alloys, potentially advancing their practical applications in energy and catalysis [2]
链动新质生产力 全国首列氢能文旅列车下线
Ke Ji Ri Bao· 2025-10-20 09:22
Core Insights - The launch of the "Hydrogen Spring" train marks a significant breakthrough in China's green rail transit sector, utilizing hydrogen fuel cell technology for zero carbon emissions and flexible urban and tourism applications [1][2] Group 1: Hydrogen Train Development - The "Hydrogen Spring" train, developed by CRRC Changchun Railway Vehicles Co., features a hydrogen fuel cell power system, producing only water as a byproduct, thus achieving zero carbon emissions [1] - The train can be flexibly configured with 1 to 6 cars, making it suitable for urban commuting and tourism routes, which helps reduce construction and operational costs [1] - The average energy consumption of the "Hydrogen Spring" train is approximately 1.5 kilowatt-hours per kilometer, with a hydrogen storage system designed for safety and efficiency [1] Group 2: Industry Collaboration and Development - CRRC Group signed a cooperation agreement with the Jilin provincial government to promote the application of hydrogen trains and the development of the hydrogen energy industry chain [2] - The company aims to leverage Jilin's resources and industrial foundation to enhance collaboration and build a new hydrogen energy industry cluster, focusing on high-quality development [2] - CRRC has been expanding its hydrogen-powered rail transit equipment, developing various hydrogen energy products and promoting the commercialization of hydrogen technology through collaborative efforts with upstream and downstream enterprises [2]
《上海宣言》确立四大行动——中国引领,共创工程科技绿色未来
Ke Ji Ri Bao· 2025-10-20 09:22
Core Viewpoint - The China Academy of Engineering emphasizes the importance of addressing the needs of Global South countries and promoting engineering achievements to benefit more developing nations, while also advocating for international recognition of engineering qualifications and standards [1] Group 1: Engineering Achievements and Global Cooperation - The Shanghai Declaration, adopted at the World Engineering Organization Assembly, outlines four key actions focused on green transformation, innovative solutions, capacity building, and global partnerships to drive sustainable development [1] - China's engineering achievements, particularly in renewable energy sectors like solar and wind, have gained international recognition, positioning the country as a global leader [1][2] Group 2: Challenges in Engineering and Sustainability - The global engineering community acknowledges pressing issues such as climate change, technology gaps, and talent shortages that need to be addressed for sustainable development [2] - There is a growing concern about the declining interest among youth in engineering careers, particularly among women, as highlighted by UNESCO's 2021 engineering report [2] Group 3: Future Collaboration and Initiatives - Collaboration is identified as a key strategy to tackle challenges, with calls for partnerships between countries, particularly between the UK and China in areas like new materials and energy [3] - A memorandum of understanding was signed between the African Engineering Organization and the China Association for Science and Technology to enhance cooperation in the engineering sector [3] - Companies like Yushi Technology are developing solutions for autonomous driving and have established international collaboration models to facilitate compliance and innovation [3]
科技新观察|创新驱动三大指标提前实现 中国科技“十四五”乘风破浪
Ke Ji Ri Bao· 2025-10-20 09:22
Group 1: Innovation and Development - The investment in R&D by the whole society has shown stable growth, exceeding 7% continuously from 2021 to 2024, with an intensity higher than the actual during the "13th Five-Year Plan" period [1] - The number of high-value invention patents per 10,000 people has increased from 7.5 to 14, achieving the expected target of the "14th Five-Year Plan" ahead of schedule [1] - The added value of the core industries of the digital economy has surpassed 10% of GDP for the first time, indicating a rapid implementation of new industries, new business formats, and new models [1] Group 2: Key Technologies and Breakthroughs - Huagong Technology has set a global record for the fastest welding of a complete electric vehicle in just 43 seconds, showcasing advanced manufacturing capabilities [2] - The fifth-generation three-dimensional five-axis laser cutting intelligent equipment developed by Huagong Technology features 100% self-controlled key components, representing the highest level of global laser CNC machine tool technology [3] - Significant breakthroughs in key core technologies have been achieved, including advancements in space exploration and deep-earth drilling, reflecting China's growing capabilities in these areas [4] Group 3: New Quality Productivity - The concept of new quality productivity, introduced by the President, emphasizes innovation as the main driving force, moving away from traditional economic growth models [6] - The integration of technology and industry has been promoted, leading to major technological breakthroughs in fields such as new generation information technology and renewable energy [7] - Various regions are actively developing new quality productivity, with initiatives in artificial intelligence, quantum information, and new energy systems [8] Group 4: Talent and Innovation - The importance of talent in driving national technological innovation has been highlighted, with ongoing reforms aimed at enhancing the evaluation and utilization of scientific talent [9] - The number of R&D personnel in China has increased significantly, with a notable rise in the proportion of young scientists leading key projects [12] - The establishment of a new talent evaluation system focusing on innovation value and contribution has been implemented, benefiting researchers and fostering a more conducive environment for scientific advancement [11]
科技创新活力持续迸发!“十四五” 这些硬核成果值得细看
Ke Ji Ri Bao· 2025-10-20 05:13
Group 1: Nuclear Power Development - The "Hualong One" nuclear power unit at Fuqing Nuclear Power Plant has officially commenced commercial operation, marking a significant achievement in China's third-generation nuclear technology [3] - The "Hualong One" unit has an annual electricity generation capacity of nearly 10 billion kWh, sufficient to meet the annual electricity needs of 1 million people [3] - During the 14th Five-Year Plan period, the construction of "Hualong One" units is progressing steadily, with a domestic equipment localization rate exceeding 90%, benefiting over 5,400 upstream and downstream enterprises [3] Group 2: Heavy Machinery and Infrastructure - The development of large-diameter shield tunneling machines has broken foreign technology monopolies, addressing key construction challenges in China's transportation infrastructure [5] - China Railway Equipment has produced over 50 large-diameter shield machines, including the world's largest high-speed rail shield machine, showcasing China's manufacturing capabilities [5] Group 3: Space Exploration - The "Xihe" solar observation satellite has been capturing solar evolution data, providing a unique perspective for understanding the sun [7] - The satellite has achieved several international firsts in solar observation technology and has made its data available to research teams from 15 countries [7] Group 4: Energy Equipment - The successful development of the domestically produced F-class 50 MW heavy-duty gas turbine represents a significant breakthrough in China's high-end energy equipment sector [9] - This turbine can generate over 70,000 kWh of electricity per hour, enough to meet the daily electricity needs of 7,000 households, and can reduce carbon emissions by approximately 500,000 tons annually [9] Group 5: High-Speed Rail - The CR450 train set, capable of reaching a testing speed of 450 km/h and an operational speed of 400 km/h, represents a significant advancement in high-speed rail technology [11] - The train features a 22% reduction in running resistance and a 10% weight reduction, making it the fastest high-speed train globally upon its operational launch [11] Group 6: Quantum Computing - The "Zuchongzhi 3" superconducting quantum computing prototype has set a new record for quantum computing superiority, outperforming the fastest classical algorithms by 15 orders of magnitude [13] - This achievement highlights China's advancements in quantum computing technology and its potential to lead in this field [13] Group 7: Artificial Synthesis - Chinese scientists have achieved the first artificial synthesis of starch from carbon dioxide in a simplified process, significantly faster than natural methods [15] - This breakthrough could revolutionize food production methods if successfully industrialized [15] Group 8: Offshore Gas Development - The "Deep Sea No. 1" Phase II project has commenced full production, becoming China's largest offshore gas field with a daily output exceeding 15 million cubic meters [17] - This project marks a significant advancement in deep-water oil and gas development in China, entering the ultra-deep water era [17]
世纪巨星,连通东西——海外媒体致敬杨振宁的科学人生
Ke Ji Ri Bao· 2025-10-20 05:13
Core Viewpoint - The passing of Nobel Prize-winning physicist Yang Chen-Ning at the age of 103 marks the end of an era in the physics community, highlighting his significant contributions to fundamental physics and his role as a bridge between Eastern and Western scientific cultures [1][6]. Contributions to Physics - Yang Chen-Ning made outstanding contributions in various fields including particle physics, field theory, statistical physics, and condensed matter physics [5]. - His work on "parity violation" in collaboration with Li Zhengdao in 1957 fundamentally changed the belief that mirror worlds are indistinguishable, laying the groundwork for the particle physics standard model [5]. - The "Yang-Mills theory," co-developed with Robert Mills, is regarded as one of the cornerstones of modern theoretical physics, comparable to Maxwell's equations and Einstein's theory of relativity [5][6]. Cultural Impact and Legacy - Yang Chen-Ning's life journey reflects the global scientific development and talent mobility of the 20th century, as he moved from China to the United States and later returned to China to promote education and research [7]. - His decision to renounce U.S. citizenship in 2015 to restore his Chinese nationality was widely covered, symbolizing his deep connection to his cultural roots [8]. - Yang's efforts in education, such as the establishment of the "Yang Chen-Ning Scholar Program" at Nanyang Technological University, aimed to inspire young students in science and engineering [9]. Educational Initiatives - Yang Chen-Ning's educational initiatives, including the "Chen Jiageng Youth Invention Award," have encouraged young people to embrace innovative thinking and critical analysis [9]. - His passion for education and foresight in promoting scientific exploration have left a lasting impact, inspiring future generations [9].
创新驱动三大指标提前实现 中国科技“十四五”乘风破浪
Ke Ji Ri Bao· 2025-10-20 05:13
Group 1: R&D Investment and Innovation - The overall R&D expenditure in China has shown stable growth, exceeding 7% annually from 2021 to 2024, with investment intensity higher than during the "13th Five-Year Plan" period [1] - The number of high-value invention patents per 10,000 people increased from 7.5 to 14, achieving the expected target of the "14th Five-Year Plan" ahead of schedule [1] - The core industries of the digital economy accounted for over 10% of GDP for the first time, indicating rapid implementation of new industries, business formats, and models [1] Group 2: Key Technological Breakthroughs - Significant breakthroughs in key core technologies have been achieved, with a focus on self-reliance and security in technology [4][6] - The fifth-generation three-dimensional five-axis laser cutting intelligent equipment developed by Huagong Technology represents the highest level of global laser CNC machine technology [4] - The "14th Five-Year Plan" emphasizes the establishment of a new type of national system to tackle key core technology challenges and improve the overall efficiency of the innovation chain [7] Group 3: New Quality Productivity - The concept of new quality productivity, characterized by high-tech, high efficiency, and high quality, was introduced to guide high-quality development [13] - China has built approximately 4.6 million 5G base stations, maintaining a global lead in technology and user numbers, which supports digital transformation across various industries [13] - The country has achieved significant advancements in renewable energy, with cumulative sales of new energy vehicles surpassing 40 million, maintaining the world's largest market for ten consecutive years [13] Group 4: Talent and Innovation - The number of R&D personnel in China increased from 7.553 million in 2020 to 10.797 million in 2024, ranking first in the world for several consecutive years [22] - Young scientific and technological talents are becoming the main force in research, with 43.3% of project leaders in national key R&D programs being under 45 years old [22] - The reform of the talent development system has been deepened, allowing for greater autonomy in the distribution of benefits from technology transfer, thus enhancing the innovation potential of the workforce [20][21]