Ke Ji Ri Bao
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新DNA存储方案显著提升数据恢复能力
Ke Ji Ri Bao· 2025-11-10 23:53
记者11月6日获悉,天津大学应用数学中心与合成生物学全国重点实验室教授吴华明团队在《自然·通 讯》发表最新研究成果,提出名为"StairLoop"的新型DNA存储方案,显著提升了在高错误率合成环境 下DNA存储的数据恢复能力。 在验证实验中,研究团队成功将代表早期人类文明的甲骨文图像通过电化学合成方式写入DNA链。实 验结果显示,即使面对部分合成区块核苷酸错误率超过6%、序列丢失率超过30%的极端情况,方案仍 能准确解码并完整复原原始图像。 这一突破性进展,为DNA存储技术在高错误率合成环境下的可靠应用提供了可行路径,也推动了DNA 存储从实验室研究向产业化迈出关键一步。 (文章来源:科技日报) 随着全球数据存储需求飞速增长,传统的存储介质逐渐面临瓶颈。DNA因其存储密度高、稳定性强、 环境友好等优势,被视为下一代存储技术的重要方向。然而,DNA存储走向实际应用仍面临合成错误 率高、数据恢复困难等挑战,尤其是在电化学合成等低成本、高通量的技术路径中,错误率和序列丢失 问题尤为突出。 吴华明介绍,该方案通过设计阶梯式交织结构和迭代式软判决解码机制,在不依赖复杂多序列比对的情 况下,有效校正了插入、删除、替换等典 ...
柔性可穿戴材料实现高性能辐射监测
Ke Ji Ri Bao· 2025-11-10 23:49
Core Insights - The research team at Xi'an University of Architecture and Technology has made significant advancements in flexible electronic materials, specifically in the development of a new double perovskite material system suitable for wearable radiation monitoring [1] Group 1: Research and Development - The team successfully integrated artificial intelligence with quantum mechanics calculations to design a new type of double perovskite material [1] - The new material demonstrates excellent radiation sensitivity and environmental stability while overcoming the rigidity limitations of traditional perovskite materials [1] Group 2: Applications and Future Directions - The research provides a new pathway for the development of high-performance flexible electronic devices and radiation monitoring applications [1] - Future exploration will focus on the application of smart materials in medical and sports fields, aiming to enhance the integration of technology into everyday life [1]
陕西可再生能源装机占比首超火电
Ke Ji Ri Bao· 2025-11-10 23:37
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] Group 1: Energy Industry Performance - 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, reflecting stability, strength, innovation, and greenness [1] - The structural transformation towards greener energy in Shaanxi is driven by the high-end, diversified, and low-carbon development of coal chemical industries, with significant projects like the Yulin Chemical Phase II and Shenhua Yulin Circular Economy Coal Comprehensive Utilization progressing steadily [1] Group 2: Renewable Energy Development - The province is promoting leapfrog development in renewable energy, with steady progress in large-scale wind and solar energy development, and five pumped storage projects with a total investment of 56.3 billion yuan accelerating construction [1] - Recent technological breakthroughs in Shaanxi's photovoltaic sector include commercial-sized silicon-perovskite tandem cells achieving an efficiency of 33% and silicon modules exceeding 26% efficiency, both setting world records [1] Group 3: Energy Security and Export - The green transformation of the energy structure not only optimizes Shaanxi's industrial system but also enhances its capability to ensure national energy security, with the province's electricity export ratio reaching one-third in the first three quarters, facilitating the transmission of more green electricity nationwide through ultra-high voltage channels [1]
西北四省区绿电首次“打捆”外送华北
Ke Ji Ri Bao· 2025-11-10 23:37
Group 1 - The core viewpoint of the news is that the innovative regional electricity cooperation model among Qinghai, Gansu, Shaanxi, and Xinjiang has successfully delivered green electricity to North China, enhancing the optimization of electricity resource allocation across a larger area [1] - The cooperation has resulted in a monthly electricity transaction organization, with an external electricity delivery volume of 2.2 billion kilowatt-hours in October, representing a 7% increase compared to the same period last year [1] - Qinghai, as a significant clean energy base, excels in solar energy development, contributing primarily to the photovoltaic supply for green electricity delivery, while Gansu and Xinjiang provide wind energy, and Shaanxi plays a crucial role in energy coordination and scheduling [1] Group 2 - In 2023, the State Grid Qinghai Electric Power Company has made steady progress in renewable energy consumption, with 4.988 million kilowatts of new renewable energy connected to the grid from January to August, achieving six new highs in renewable energy generation [2] - The cumulative external electricity delivery from Qinghai reached 18.38 billion kilowatt-hours, covering 16 provinces and municipalities, with a year-on-year growth of 25.7% [2] - As of the end of August, the clean energy installed capacity in Qinghai accounted for 93.46%, with renewable energy installed capacity at 72.22%, both ranking among the top in the country [2]
欧洲研究机构称:日常使用多种语言能延缓衰老
Ke Ji Ri Bao· 2025-11-10 23:32
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。 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。 (文章来源:科技日报) 《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。 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。 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。 ...
我科研团队提出原子量子计算新架构
Ke Ji Ri Bao· 2025-11-10 23:31
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, high speed, and high stability in addressing control [1][2] Group 1: Research Achievements - The team successfully trapped 10 single atoms in optical traps formed by fiber arrays, 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, marking a breakthrough in atomic addressing technology [2] - The architecture resolves the contradiction between high precision and high efficiency in single-atom control, providing critical technical support for the next generation of scalable applications in neutral atom quantum computing [2] Group 3: Industry Context - Neutral single-atom arrays are considered one of the most promising platforms for large-scale, fault-tolerant quantum computing due to their scalability, high-fidelity gate operations, long coherence times, and reconfigurable connectivity [1] - The efficiency and precision of single-atom control directly influence the practical advancement of quantum computing in the NISQ (Noisy Intermediate-Scale Quantum) era [2]
固态电池产业化,还要闯过几道关?
Ke Ji Ri Bao· 2025-11-10 23:30
Core Insights - The competition in the solid-state battery arena is intensifying with three main technological routes: sulfide, oxide, and polymer [1][2] - A breakthrough by Tsinghua University has led to a new fluorinated polyether electrolyte, achieving an energy density of 604 Wh/kg, nearly tripling the performance of existing commercial batteries [1][2] Technological Routes - The sulfide route is recognized for its highest performance potential, with Toyota holding around 1,300 related patents and planning to launch solid-state battery vehicles by 2027-2028 [2] - The oxide route is being advanced by companies like Guoxuan High-Tech, which aims to launch a solid-state battery based on composite oxide and polymer electrolytes by 2028 [2] - The polymer route shows significant promise due to its high process compatibility and ability to address interface issues, making it a strong candidate for large-scale commercialization [2][3] Challenges in Commercialization - The transition from laboratory breakthroughs to commercial products faces numerous challenges, particularly the "solid-solid interface" issue, which is a critical technical bottleneck [3] - Current solid-state battery yields are significantly lower than those of mature liquid batteries, with performance dropping when scaling from small to large formats [3] - The cost of solid-state batteries remains high, estimated at $400-$800 per kWh, which is 3-5 times that of liquid batteries [3] Manufacturing and Safety Concerns - Manufacturing compatibility with existing liquid battery production lines is below 50%, necessitating significant investment in new equipment [4] - Safety assessments are crucial, as sulfide electrolytes can pose thermal runaway risks at elevated temperatures [5] Future Outlook - The commercialization of solid-state batteries is expected to take time, with 2027 likely being a trial production year rather than a mass production milestone [5] - A multi-tiered market is anticipated, with high-end solid-state and mainstream semi-solid batteries coexisting for a transitional period of 2-10 years [5] Industry Innovations and Collaborations - Companies like Beijing Pure Lithium New Energy are applying solid-state batteries in energy storage and two-wheeled electric vehicles, focusing on safety rather than extreme performance [6] - The establishment of the China Solid-State Battery Industry-Academia-Research Collaborative Innovation Platform aims to address common challenges in the industry [7] - Recommendations include creating open pilot platforms for technology validation and encouraging a forward-looking policy framework to support both cutting-edge technology and existing industry stability [7]
病毒不断变异 接种疫苗有效吗?专家:流感疫苗组分每年更新 匹配当季流行株
Ke Ji Ri Bao· 2025-11-10 23:26
Core Viewpoint - The matching rate of the influenza vaccine for the H3N2 subtype has improved 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 based on the World Health Organization's recommendations, ensuring better protection against the current circulating strains [1]. - Antibodies generated from the influenza vaccine typically decline after 6-8 months, necessitating annual vaccination for optimal protection during flu season [2][3]. - Even individuals who have previously contracted influenza should receive the vaccine, as different subtypes can circulate simultaneously, and immunity to one subtype does not confer protection against others [3]. Group 2: Current Influenza Situation - The overall influenza activity in the country is at a moderate level, with the H3N2 subtype accounting for over 95% of cases, while H1N1 and B type viruses are also present in smaller proportions [2]. - The winter and spring seasons are identified as high-risk periods for influenza and other acute respiratory infections, prompting health authorities to enhance vaccination efforts among vulnerable populations [3].
科技作为重点领域予以优先保障
Ke Ji Ri Bao· 2025-11-10 23:23
Core Insights - The Chinese government is intensifying its macroeconomic policies to enhance counter-cyclical adjustments, showcasing strong economic vitality and resilience, with new achievements in high-quality development [1] Group 1: Technology and Innovation - The central government plans to allocate CNY 398.12 billion for technology funding in 2025, a 10% increase from the previous year, focusing on basic research and strategic technology tasks [1] - The budget for basic research is set to increase by 12.1% in 2025, with enhanced support for research institutions and talent [2] - The government aims to support the integration of technological and industrial innovation, promoting the cultivation of new productive forces [1][2] Group 2: Industrial Upgrading - The government is addressing critical issues in the manufacturing sector, enhancing funding for key research and development plans to improve supply chain resilience [2] - Support is being provided for over 1,200 "little giant" enterprises to promote high-quality development [2] Group 3: Business Support Policies - Tax incentives for high-tech enterprises and increased R&D expense deductions are being implemented to boost corporate innovation [3] - A special long-term bond fund of CNY 173.4 billion has been allocated to facilitate equipment upgrades and the adoption of new technologies [3] - The technology innovation guarantee plan has supported 22,000 small and medium-sized tech enterprises with loans totaling approximately CNY 90 billion [3]
科学家用“隐藏”神经信号指令控制仿生假肢
Ke Ji Ri Bao· 2025-11-10 22:57
Core Insights - A new method developed by the Medical University of Vienna and Imperial College London allows for precise capture and decoding of hidden neural signals in the residual limbs of upper limb amputees, translating them into accurate movement commands for prosthetic limbs [1][2] Group 1: Research and Development - The research involved implanting a novel 40-channel microelectrode array into three upper limb amputee volunteers, utilizing targeted muscle reinnervation (TMR) surgery to create a new biological interface [1] - TMR surgery reconnects residual arm nerves to remaining muscles, enabling the detection of neural signals originally used to control the hand and arm [1] - The team achieved direct measurement of individual motor neuron activity located in the spinal cord, which transmits movement commands from the brain to the muscles [1] Group 2: Implications for Prosthetics - This breakthrough indicates that future prosthetic limbs will no longer rely on simple muscle contraction patterns for coarse control but will respond to users' finer and more natural movement intentions [2] - The current research lays the groundwork for the development of next-generation wireless implantable devices, which may enable real-time wireless transmission of neural signals to prosthetic hands or other assistive systems [2] - Ultimately, this technology aims to help amputees regain near-natural limb functionality [2]