今年首场大范围寒潮已经在"路上"。 据中央气象台预报，1月17日至21日，寒潮将自西向东、自北向南影响我国大部地区，中东部地区 将出现大范围雨雪冰冻天气。陕西、山西、河南、山东、湖北、湖南、安徽等地有暴雪。河南西部、湖 北西部、湖南、贵州、重庆东部等地部分地区将出现冻雨。这次过程被认为是入冬以来中东部地区最强 的雨雪冰冻天气过程。 据预报，陕西、山西、山东、河南、湖北、湖南、安徽等地部分地区有暴雪和低温雨雪冰冻灾害风 险。张涛特别指出，这一次雨雪天气是随着冷空气而来的，所以不管降下的是雨、雪、雨夹雪还是冻 雨，最后可能都会产生比较明显的冰冻现象。因此，从本次寒潮特点来看，最需要我们警惕的、致灾性 最强的就是冰冻，需要事先做好防范。 "从降水量来看，1毫米降水是微不足道的，1毫米降雪问题也不是很大，但1毫米冻雨带来的影响会 非常大。"张涛提醒，此次寒潮天气中出现冻雨的地区要尤其做好防范。 冻雨落在电线、树枝、地面上，随即就会结成外表光滑的一层薄冰，冰在凝聚过程中还会边流动边 冻结，越结越厚，可能会出现压断树木、电线杆的情况，使通信、供电中止；还可能造成农作物冻害， 导致绝收；或妨碍公路和铁路交通，威胁飞机飞行安 ...

Core Viewpoint - The production of T1000-grade carbon fiber in Shanxi, China, marks a significant breakthrough in high-performance materials, previously dominated by foreign countries, enabling advancements in various strategic sectors [1][2]. Group 1: Production and Technology - The T1000-grade carbon fiber, known for its strength exceeding that of steel by 5 to 7 times, is produced using a unique process that includes a proprietary raw material formula and dry-wet spinning technology, addressing the issue of brittleness [2][3]. - The production line, established by the Shanxi Coal Chemical Research Institute and Shanxi Huayang Carbon Material Technology Co., has achieved stable mass production, transitioning from laboratory success to industrial-scale output [1][4]. Group 2: Performance Characteristics - The newly developed T1000-grade carbon fiber exhibits exceptional properties, including corrosion resistance and stability at extreme temperatures, capable of withstanding up to 1000 degrees Celsius and maintaining performance at -180 degrees Celsius [3]. - In tensile strength tests, the carbon fiber can endure approximately 200 kilograms of force per meter, equivalent to the weight of three adult males, showcasing its superior strength [2]. Group 3: Challenges and Solutions - The transition from pilot production to stable mass production posed significant engineering challenges, particularly in maintaining production stability, as even minor fluctuations could lead to product defects [4][5]. - A critical issue was identified during the production process related to a poorly selected flow control valve, which was resolved, leading to improved stability in production [4]. Group 4: Future Prospects - The successful mass production of T1000-grade carbon fiber signifies a shift from "catching up" to "keeping pace" in the high-performance materials sector, with applications anticipated in defense, aerospace, rail transportation, and renewable energy [5]. - The research team aims to develop even higher strength T1200-grade carbon fiber and expand its industrial applications, further enhancing the material's impact in various fields [5].

Core Insights - The article discusses the implementation of 25 innovative measures for cross-border trade facilitation across China, aimed at responding to changes in the international trade environment and addressing business needs [1] Group 1: Cost Reduction and Efficiency - In Nansha Port, shipping collaboration has reduced the comprehensive cost for each vehicle by over 2000 yuan [1] - At Ningbo Zhoushan Port, advanced technologies like high-speed image recognition and automatic sampling robots have cut the average customs clearance time for iron ore and copper concentrate by 15 hours [1] Group 2: Multi-Modal Transport Innovations - The successful launch of the world's first "sea-rail combined transport + China-Europe fast shipping" model at Ningbo Zhoushan Port connects over 700 ports in more than 200 countries and regions [2] - The "one order system" for multi-modal transport has expanded the layout of inland dry ports, with the sea-rail combined transport business covering 16 provinces and 69 cities, maintaining the highest volume of foreign trade containers in China [2] Group 3: Air Transport Developments - The "airside direct access" initiative allows export goods arriving by domestic flights to bypass multiple handovers, streamlining the logistics process [3] - Plans to expand air-to-air, air-land, and air-rail combined transport services aim to enhance the efficiency of international logistics [3] Group 4: Special Goods Handling - The export process for electric vehicles and lithium batteries has been optimized to allow for separate shipping of batteries and vehicles, reducing time and costs associated with long-distance transport [4] - Guangzhou has established the first cross-border e-commerce platform for battery-powered goods, simplifying documentation requirements and significantly lowering logistics costs, with some testing fees reduced by 50% and ground operation costs by 60% [4] Group 5: Fresh Produce and Pharmaceuticals - Innovations in processes for fresh goods and pharmaceuticals have improved inspection capabilities, achieving seamless connections and expedited procedures [5] - In Guangzhou, imported cherries and durians can be delivered to owners in as little as 2 hours, while in Beijing, the inspection and release cycle for pharmaceuticals has been reduced to "minute-level," taking only 4 hours from port to patient [5]

科技日报北京1月15日电（记者马爱平）记者15日从全国林业和草原工作会议上获悉，2025年，我 国完成国土绿化任务1.27亿亩，其中营造林5345万亩，退化草原修复治理7390万亩。目前全国森林覆盖 率达25.09%，森林蓄积量达209.88亿立方米，绿色发展底色成色更加鲜明。 上述负责人介绍，"十四五"期间，我国共完成国土绿化面积5.49亿亩，其中造林面积1.85亿亩；年 均修复退化草原4600万亩以上，草原综合植被盖度稳定在50%以上，健康和亚健康草原达到27亿亩，占 比超过70%；完成沙化土地治理1.52亿亩、封禁保护面积达2793.6万亩，我国荒漠化和沙化土地面积持 续"双缩减"，在全球率先实现了土地退化"零增长"。 据国家林业和草原局相关负责人介绍，2025年，我国"三北"工程三大标志性战役取得显著成效。全 年安排中央投资292亿元，实施337个重点项目，完成建设任务1.3亿亩，其中，综合治理任务0.28亿亩， 成果巩固任务1.02亿亩。 2025年，我国持续开展大规模国土绿化行动，聚焦青藏高原生态屏障区等重点区域，实施166个"双 重"工程项目、10个国土绿化示范项目。同时，认真落实《古树名木保护 ...

"十五五"期间，国家电网将初步建成主配微协同的新型电网平台，"西电东送、北电南供"能源输送 网络进一步巩固。加快特高压直流外送通道建设，跨区跨省输电能力较"十四五"末提升超过30%，支撑 国家"沙戈荒"和西南大型水电清洁能源基地开发外送。区域间背靠背灵活互济能力显著增强。加快推进 城市、农村、边远地区配网建设，探索末端保供型、离网型微电网模式。夯实数智基础设施，实施"人 工智能+"专项行动，强化电网数字赋能。 科技日报北京1月15日电（记者陈瑜）记者15日获悉，"十五五"期间，国家电网有限公司（以下简 称"国家电网"）固定资产投资预计达到4万亿元，较"十四五"投资增长40%，以扩大有效投资带动新型 电力系统产业链供应链高质量发展。 "十五五"期间，锚定国家自主贡献减排目标，国家电网服务经营区风光新能源装机容量年均新增2 亿千瓦左右，推动非化石能源消费占比达到25%、电能占终端能源消费比重达到35%，助力初步建成新 型能源体系、如期实现全社会碳达峰目标。提升系统调节能力，支持新型储能规模化发展，提高新能源 运行支撑和并网消纳水平。服务零碳工厂和零碳园区建设，满足3500万台充电设施接入需要，提高终端 用能电气化 ...

Core Insights - The CES 2026 showcased a variety of AI health products aimed at providing personalized health management solutions, but concerns about reliability and data privacy were raised by experts [1][2][3]. Group 1: AI Health Innovations - New products focused on women's health, addressing long-neglected areas such as menstrual cycles and menopause, with Oova's wearable device "Peri" monitoring symptoms and generating trend reports [2]. - NuraLogix's "magic mirror" uses facial scanning to estimate heart rate and blood pressure, showing high accuracy compared to professional medical devices [2]. - Garmin introduced a nutrition tracker that analyzes food photos to provide personalized dietary recommendations based on caloric and macronutrient content [2]. Group 2: AI in Healthcare Accessibility - AI is emerging in the $4.3 trillion global healthcare system, helping to analyze images, organize medical records, and optimize processes, thereby reducing the burden on healthcare professionals [3]. - 0xmd launched a free medication consultation chatbot that allows users to ask questions and upload images for preliminary analysis [3]. - OpenAI announced a dedicated health conversation mode for ChatGPT, ensuring that health-related dialogues are stored separately to protect sensitive information [3]. Group 3: Regulatory Changes and Privacy Concerns - The FDA announced relaxed regulations for "low-risk" health devices, which may accelerate the introduction of innovative products but raises concerns about data privacy [6][7]. - Current laws primarily protect patient data within medical institutions, leaving consumer health device data vulnerable to misuse, as companies may legally use sensitive information for AI training or sell it to third parties [7]. - Companies like Mira claim to prioritize user privacy, stating that their hormone tracking device encrypts data and does not share or sell user information [7].

1月15日，记者从中国科学院兰州化学物理研究所获悉，该所润滑材料全国重点实验室材料表面与 界面课题组周峰研究员团队，在可持续超润滑水凝胶研究领域取得重大突破。相关成果发表在期刊《先 进材料》上。 更具突破性的是，该水凝胶体系在长期摩擦过程中展现出自再生润滑能力。摩擦磨损会诱导界面发 生动态解离平衡，持续补充润滑界面。同时，双连续微相结构耦合表面润滑层还能有效钝化摩擦裂纹、 分散应力集中，显著提升耐磨寿命。 与传统依赖共价交联的水凝胶不同，该体系基于线性聚合物与氢键缔合网络构建，可在碱性条件下 解离为液态前驱体，再通过调节pH值重新凝胶化，实现形状重塑和润滑涂层反复使用。 该研究成果首次在同一体系中集成了超高模量、超低摩擦、优异耐磨性与闭环可回收性，为人工关 节、软体机器人和极端环境下的润滑需求提供了全新材料解决方案，也为未来智能化、可持续润滑系统 的设计奠定了重要理论与技术范式。 （原载于《科技日报》 2026-01-16 02版） 水凝胶作为人工软骨替代材料备受关注。但传统润滑水凝胶存在结构均一性问题，提高力学性能会 削弱润滑能力，追求低摩擦又会使材料在高载荷下易失效，这严重制约了其在高载荷、长寿命润滑场景 ...

1月15日，记者从中国科学技术大学获悉，该校张树辰特任教授团队联合美国普渡大学、上海科技 大学的研究团队，首次在二维离子型软晶格材料中，实现了面内可编程、原子级平整的"马赛克"式异质 结可控构筑，为低维光伏材料的集成化与器件化开辟了全新路径。相关成果15日在线发表于国际学术期 刊《自然》。 （原载于《科技日报》 2026-01-16 01版） 在半导体领域，能够在材料平面内横向精准构建异质结构，是探索新奇物性、研发新型器件及推动 器件微型化的关键。然而，以二维卤化物钙钛矿为代表的离子型软晶格半导体，其晶体结构柔软且不稳 定，传统光刻加工等技术往往因反应过于剧烈而破坏材料结构，难以实现高质量、可控外延的横向异质 集成。 "这种全新的加工方法，不是通过'拼接'不同材料，而是在同一块完整晶体中，引导它自身进行精 密的'自我组装'。"张树辰说，"这意味着，未来我们有可能在一块极薄的材料上，直接'生长'出密集排 列的、能发出不同颜色光的微小像素点，为高性能发光与显示器件的发展，提供一种全新的备选材料体 系和设计思路。" 面对这一挑战，研究团队提出并发展了一种引导晶体内应力"自刻蚀"新方法。他们设计了一种温和 的配体—溶 ...

Core Viewpoint - The successful mass production of T1000-grade carbon fiber in China marks a significant breakthrough in high-performance materials, previously dominated by foreign countries, and is expected to have far-reaching implications for various strategic industries [1][5]. Group 1: Production Process - The T1000-grade carbon fiber is produced through a sophisticated process involving the polymerization of acrylonitrile into a gel-like solution, followed by extrusion through a spinneret with thousands of micropores, and subsequent oxidation and carbonization [1]. - The production line, established by the Chinese Academy of Sciences and Shanxi Huayang Carbon Material Technology Co., has achieved qualified product output by September 2025 and officially commenced production in November 2025 [1][5]. Group 2: Material Properties - T1000-grade carbon fiber boasts a carbon content exceeding 90%, with a strength 5-7 times that of steel, and is recognized as a strategic material essential for high-end equipment in aerospace and defense [2]. - The newly developed carbon fiber exhibits exceptional properties, including corrosion resistance and stability at extreme temperatures, capable of withstanding up to 1000 degrees Celsius and maintaining performance at -180 degrees Celsius [3]. Group 3: Challenges and Solutions - Transitioning from laboratory success to stable mass production posed significant engineering challenges, particularly in maintaining production stability due to the higher strength requirements of T1000-grade compared to T800-grade [4]. - The team identified and resolved a critical issue related to a poorly selected flow control valve, which had caused fluctuations in production conditions, ultimately achieving consistent product quality after extensive troubleshooting [4]. Group 4: Future Prospects - The successful mass production of T1000-grade carbon fiber signifies a shift from "catching up" to "keeping pace" in the industry, with applications anticipated in national defense, aerospace, rail transportation, and renewable energy sectors [5]. - The research team aims to develop even higher strength T1200-grade carbon fiber and expand its industrial applications, further enhancing the material's impact across various fields [5].

Core Insights - The James Webb Space Telescope has detected a series of unusual "red dots" in the early universe, which are not typical galaxies but emit a faint red glow, suggesting they may hold significant information about cosmic evolution [1][2] - Initial hypotheses proposed that these objects could either be young galaxies forming stars or supermassive black holes, but their spectral characteristics do not align with known models for either category [1][2] Group 1 - The spectral features of these red dots match a theoretical scenario where photons interact with dense gas clouds around black holes, leading to energy loss and a redshift effect [2] - The actual size of these black holes may be only one percent of previous estimates, indicating that they are in an early developmental stage rather than being fully matured cosmic entities [2] - The study raises questions about the weak X-ray emissions from these bodies, which could be due to gas absorption or unique black hole accretion processes [2] Group 2 - The ongoing observations by the James Webb Space Telescope and future advanced telescopes aim to uncover the growth history of these black holes, exploring how they evolve from small seeds to central gravitational forces in galaxies [2][3] - The findings represent the first insights into the "childhood" of black holes, with these red dots serving as a mysterious clue in understanding their early development [3]