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海南大学研发新型海水电池实现178天“超长待机”
Ke Ji Ri Bao· 2025-11-11 02:43
Core Insights - The "smart nano shield" technology developed by Hainan University and the National University of Singapore significantly enhances the performance of zinc batteries in natural seawater, achieving a standby time of 4268 hours (approximately 178 days) and extending battery life by 16 times compared to unprotected batteries [1][2] Group 1: Technology Breakthrough - The research addresses the critical issue of zinc anode corrosion in seawater batteries, which is caused by the strong corrosiveness of chloride ions, leading to rapid performance degradation [1] - The innovative use of ultrasonic spraying technology to create a sub-10 micron coating of inexpensive zinc acetylacetonate (ZA) material provides a "dual defense" for the zinc anode [1] - The coating's negatively charged surface repels chloride ions while promoting orderly deposition of zinc ions, balancing corrosion prevention and efficient ion transport [1] Group 2: Application Prospects - The technology has clear application prospects, including long-term energy storage for offshore wind and solar projects, powering sensors and communication bases in marine ranches and deep-sea cages, and supporting island power supply while reducing reliance on diesel generators and freshwater [2] - The low cost and scalability of the ultrasonic spraying process lay a solid foundation for industrialization, potentially offering new solutions for marine energy supply [2]
病毒不断变异,接种疫苗有效吗?专家回应:流感疫苗组分每年更新,匹配当季流行株
Ke Ji Ri Bao· 2025-11-11 02:41
Core Viewpoint - The matching of influenza vaccines, particularly for the H3N2 subtype, has improved significantly compared to previous years, with over 95% similarity to circulating strains, addressing public concerns about vaccine effectiveness against evolving viruses [1][2]. Group 1: Vaccine Effectiveness - The influenza vaccine is updated annually to match the circulating strains, ensuring better protection for the current flu season [1][2]. - Antibody levels from the flu vaccine typically decline after 6-8 months, necessitating annual vaccination to maintain effective immunity [2][3]. - The current flu season shows a predominance of the H3N2 subtype, accounting for over 95% of cases, with some H1N1 and B subtype activity noted [2][3]. Group 2: Public Health Recommendations - Individuals who have previously contracted influenza should still receive the vaccine, as different subtypes can circulate simultaneously, and immunity to one does not confer protection against others [3]. - The winter-spring period is identified as a peak time for influenza and other respiratory infections, prompting health authorities to encourage vaccination among high-risk groups [3].
李润杰:长在高原上的“格桑花”
Ke Ji Ri Bao· 2025-11-11 02:02
Core Insights - The article highlights the significant contributions of Li Runjie in addressing soil salinization and water quality issues in Qinghai, showcasing his dedication to improving agricultural productivity and ensuring safe drinking water for local communities [1][2][6]. Group 1: Soil Salinization and Agricultural Innovation - Li Runjie has been actively involved in combating salinization in the Qaidam Basin, where over one million acres of land have been affected, turning fertile fields into "white deserts" due to improper irrigation practices [2][3]. - He introduced the use of corrugated pipe drainage technology to manage excess groundwater, effectively preventing salt from rising to the surface and harming crops [5][6]. - The innovative "salt washing" method, which involves irrigating fields to flush out salt through drainage systems, has been widely adopted in Qinghai, revitalizing previously barren lands [5][6]. Group 2: Drinking Water Safety Initiatives - Li Runjie has been instrumental in improving drinking water safety for rural communities, where residents previously relied on contaminated rainwater and faced significant health risks from high fluoride and arsenic levels in well water [6][7]. - He developed a cost-effective multi-media filtration system for drinking water, significantly reducing the cost compared to conventional membrane technologies, making it accessible for local populations [8][9]. - The implementation of solar-powered deep wells has transformed water access for dispersed communities, addressing both water scarcity and electricity shortages [8][9]. Group 3: Ecological Research and Water Resource Management - Li Runjie is leading a major scientific initiative to assess and enhance the water conservation capabilities of the Sanjiangyuan region, which is crucial for the ecological health of the area and the water security of downstream populations [11][12]. - His team is constructing an ecological hydrology knowledge base and developing a digital twin platform to monitor and manage water resources effectively, ensuring sustainable practices in the region [12].
【科技日报】我国科研团队提出原子量子计算新架构
Ke Ji Ri Bao· 2025-11-11 01:36
Core Insights - The research team from the Chinese Academy of Sciences has made significant advancements in neutral atom quantum computing by proposing and experimentally validating a new architecture based on fiber arrays, addressing the challenges of achieving high parallelism, speed, and stability in atomic control [1][2]. Group 1: Research Achievements - The team successfully trapped 10 single atoms in a light trap formed by a fiber array, demonstrating high-fidelity "arbitrary single-qubit gate" parallel control in a two-dimensional atomic array for the first time [1]. - The observation of the Rydberg blockade effect between two atoms is a key physical foundation for achieving high-fidelity two-qubit gates [1]. Group 2: Technological Innovations - The proposed architecture allocates independent fiber control channels for each qubit, enabling synchronous, high-speed, and precise control of any atom, thus overcoming previous limitations in addressing technology [2]. - This innovation is crucial for advancing neutral atom quantum computing towards the next generation of scalable applications, providing essential technical support for practical quantum computing [2].
陕西省可再生能源装机占比首超火电
Ke Ji Ri Bao· 2025-11-11 01:01
Core Insights - As of the end of September this year, the installed capacity of renewable energy in Shaanxi Province reached 63.18 million kilowatts, surpassing the installed capacity of thermal power for the first time, accounting for 50.3% of the province's total power generation capacity [1] - In the first three quarters, the energy industry in Shaanxi showed strong performance with an increase in value added and investment by 8.3% and 16% respectively, characterized by stability, strength, innovation, and greenness [1] Group 1 - Shaanxi is promoting high-end, diversified, and low-carbon development in coal chemical industries, with two major projects, the Yulin Chemical Phase II and Shenhua Yulin Circular Economy Coal Comprehensive Utilization, progressing steadily [1] - The province is also advancing the large-scale development and utilization of wind and solar energy, with five pumped storage projects under construction, totaling an investment of 56.3 billion yuan [1] - Technological innovation is driving the structural changes in the energy sector, with local photovoltaic companies achieving breakthroughs in efficiency, including a commercial-sized silicon-perovskite tandem cell efficiency of 33% and silicon module efficiency exceeding 26%, both setting world records [1] Group 2 - The green transformation of the energy structure not only optimizes Shaanxi's industrial system but also enhances its capability to ensure national energy security [1] - In the first three quarters, the proportion of electricity exported from Shaanxi reached one-third, with an increasing amount of green electricity being transmitted nationwide through ultra-high voltage channels [1]
海洋工程穿上牡蛎“金钟罩”
Ke Ji Ri Bao· 2025-11-11 00:55
Core Viewpoint - The research team led by Professor Lv Jianfu from Harbin Engineering University has developed a groundbreaking technology that utilizes oysters to create a bio-protective layer for marine concrete structures, addressing both corrosion resistance and ecological restoration [1][2][5]. Group 1: Technology Development - The "Integrated Key Technology for Bio-Corrosion Resistance and Ecological Restoration of Marine Concrete Engineering" has been recognized as a major project under the United Nations "Decade of Ocean Science for Sustainable Development" initiative, with only four projects globally receiving this honor [1]. - The technology combines cement-based materials with marine organisms, specifically oysters, to create a high-durability and eco-restorative solution for marine infrastructure [2][4]. Group 2: Environmental Impact - Traditional marine construction methods contribute to significant carbon emissions, leading to the degradation of critical ecosystems like oyster reefs, which are essential for maintaining marine biodiversity [2]. - The new technology not only protects marine structures but also enhances ecological benefits, such as improving water quality and increasing biodiversity, thereby creating a symbiotic relationship between engineering and ecology [5][6]. Group 3: Implementation and Efficacy - The research team has developed a comprehensive solution that includes artificial induction, material design, and functional integration to attract oysters to concrete surfaces, ensuring a coverage rate of over 95% for optimal protective effects [3][4]. - The engineered oyster reefs can filter approximately 100 tons of seawater per square meter daily, significantly reducing water turbidity and nutrient levels, while also providing habitats for various marine species [5]. Group 4: Market Potential and Recognition - The technology aligns with high-demand markets for marine engineering corrosion protection, ecological restoration, and aquaculture, positioning it as a potential global standard for marine ecological engineering [6]. - The project has received multiple awards, including five industry patents and recognition in the shipbuilding and marine engineering sectors, indicating its innovative impact and market viability [6].
日常使用多种语言能延缓衰老
Ke Ji Ri Bao· 2025-11-11 00:55
位于爱尔兰的全球脑健康研究所团队分析了来自27个欧洲国家86149名51—90岁参与者的调查数 据,评估他们的衰老速度是否快于或慢于基于健康和生活方式因素的预期值。他们发现,仅使用一种语 言的人发生衰老加速的可能性会比预期值高约两倍,而多语言使用者的这一概率平均只有一半。 衰老是一项重大的全球健康挑战,与认知衰退和功能障碍有关。过去的研究提出,使用多语言可能 有助于保护认知功能,但由于样本量较小、依赖临床队列和间接测量衰老指标等因素,相关证据并不一 致。 研究还观察到,掌握额外语言能延缓衰老进程,并发现使用多语言存在剂量依赖效应(掌握语言越 多,延缓效果越显著)。他们指出,即使对年龄和语言、身体状况、社会和社会政治因素作调整后,多 语言的保护作用仍很显著。 《自然·衰老》10日发表的论文称,科学家调查了27个欧洲国家超过86000人的信息,发现多语言能 力(日常使用超过一种语言)能延缓衰老速度。 鉴于此,推广使用多种语言可能在人群水平上有助于支持健康老龄化策略。这一发现可为促进老年 群体认知恢复及公共卫生政策提供更多帮助。(记者张梦然) ...
加快场景培育开放,打造新技术新产品“试验场”
Ke Ji Ri Bao· 2025-11-11 00:55
Core Viewpoint - The State Council has issued the "Implementation Opinions on Accelerating Scene Cultivation and Open Promotion for Large-Scale Application of New Scenes," marking the first systematic deployment at the national level for scene cultivation and openness [1] Group 1: Scene as an Innovation Resource - China possesses a vast market, complete industrial system, and large population, which provide rich application scene advantages, making scenes a key innovation resource [2] - Scenes serve as a bridge connecting technology and industry, facilitating the integration of scientific and industrial innovation, and are essential for systemic reform and industrial upgrading [2] - The "Implementation Opinions" propose innovative policy measures to encourage participation in scene cultivation and openness, promoting deep integration of technological and industrial innovation [2] Group 2: Technology and Scene Integration - The large-scale application of new scenes relies on cutting-edge technology, which drives the creation of new application fields and supports the optimization of these scenes [3] - The Ministry of Science and Technology emphasizes the importance of cultivating and applying new scenes driven by advanced technologies, integrating this focus into strategic planning and resource allocation [3] - Future efforts will include strengthening core technology breakthroughs and establishing a rapid iterative innovation mechanism from demand to industrial application [3] Group 3: Accelerating Key Field Scene Cultivation - The Ministry of Industry and Information Technology plans to accelerate the cultivation of application scenes in key areas, such as "Artificial Intelligence+" [4] - Specific actions will be taken to extend AI applications across various manufacturing processes, enhancing innovation and integration [4] - The State-owned Assets Supervision and Administration Commission is organizing enterprises to empower the innovation chain through scene and application development, with over 400 pilot services provided [4] Group 4: Collaboration with Various Entities - There is a strong encouragement for private enterprises, small and medium-sized enterprises, and research institutions to engage in scene construction and collaborate with central enterprises on major projects [5]
世界最小转弯半径掘进机灵活穿行“地下迷宫”
Ke Ji Ri Bao· 2025-11-11 00:55
Core Insights - The "Mozi" dual-shield hard rock tunneling machine (TBM) developed by China Communications Construction Company (CCCC) has achieved significant breakthroughs in underground engineering, particularly for the pumped storage power station in Shandong Zaozhuang [1][2] - The machine can make turns with a minimum radius of 50 meters, breaking the traditional 100-meter radius limitation, thus enhancing the flexibility and efficiency of deep earth development [1][3] Technical Advancements - The "Mozi" TBM is designed to navigate complex geological structures, including hard limestone and soft shale, while avoiding risks such as collapses and water inflows [2] - It features an upgraded cutting head and a "reverse cone" design, which improves maneuverability and enhances rock-breaking efficiency by expanding the cutting range by 80 millimeters [3] - The machine's navigation system, akin to an "underground Beidou," utilizes high-precision instruments to ensure accurate path planning and real-time position tracking [3] Industry Implications - The development of small turning radius tunneling technology is becoming crucial for deep earth exploration and application, allowing for more precise and efficient construction in complex underground environments [4][5] - The "Mozi" TBM's capabilities are expected to significantly reduce construction costs and environmental impact, aligning with the industry's shift towards more refined and sustainable underground space development [5][6]
多条技术路线并行,固态电池产业化还要闯过几道关?
Ke Ji Ri Bao· 2025-11-11 00:20
全固态金属锂电池被誉为下一代储能技术的"圣杯",但长期以来因种种技术难题而难以实用化。日前,清华大学教授张强团队在固态电池研究方面取得新进 展:研发的新型含氟聚醚电解质,让固态电池的能量密度达到604瓦时每千克,较现有商业化电池提升近3倍。 今年初,工业和信息化部等八部门联合发布的《新型储能制造业高质量发展行动方案》,明确将固态电池列为锂电池发展的重要方向,并提出加强固态电池 等新型储能技术标准布局。 固态电池的竞技场上,三条技术路线正展开激烈角逐,它们分别是:离子电导率最高、被日韩企业寄予厚望的硫化物路线;稳定性好、国内广泛布局的氧化 物路线;加工性能优异、近期因技术突破而备受关注的聚合物路线。 实验室里的创新火花,能否照亮大规模产业化的漫漫长路?固态电池的真正普及,还要越过几重关山? 多条技术路线并行 固态电池的竞技场上,三条技术路线正展开激烈角逐。它们分别是:离子电导率最高、被日韩企业寄予厚望的硫化物路线;稳定性好、国内广泛布局的氧化 物路线;加工性能优异、近期因技术突破而备受关注的聚合物路线。 "硫化物路线的性能上限最高,目前在学术圈和产业界已基本成为共识。"西安电子科技大学副教授李思吾说,硫化物电解 ...