Group 1 - The core role of enterprises in technological innovation is emphasized in the recent guidelines from the Central Committee, highlighting the need for innovation resources to concentrate on enterprises [1][3] - The R&D expenditure in China is projected to reach 3.6 trillion yuan, accounting for 2.68% of GDP by 2024, with enterprises contributing over 77% of this investment [2] - The strategic direction to strengthen the role of enterprises in innovation has been consistently reinforced in national policies, indicating a clear commitment to gather innovation resources within enterprises [3][4] Group 2 - The government is shifting from being a "leader" to an "enabler," providing maximum freedom for innovation and creating a supportive ecosystem for future industries [8][9] - Companies like Huasheng Composite Technology have benefited from local innovation platforms that assist in addressing financing and market challenges, showcasing the importance of specialized support for technology transfer [10] - The integration of technology, industry, and finance is being optimized to create a virtuous cycle, with enterprises taking a leading role in original innovation and resource allocation [10]

Group 1 - The core event is the signing of 29 investment projects in Banan District, Chongqing, with a total investment of approximately 22 billion yuan, focusing on key industries such as biomedicine, electronic information, and intelligent connected new energy vehicles [1] - The projects are characterized by high investment intensity, technological content, and strong industrial driving force, aligning with the development direction of Banan District's leading industries [1] - A strategic cooperation agreement was signed between the Banan District government and Guoxin Holdings (Chongqing) Co., Ltd., aiming to integrate the advantages of central enterprises and local government for a new development model [1] Group 2 - Banan District is focusing on the "312" technology innovation layout and the "1+3+X" future industry layout to attract cutting-edge technology projects [2] - The Yengyu Muxing Satellite Intelligent R&D and Production Base project aims to establish an intelligent production capacity system for 300 satellites annually, utilizing platform-based, modular, and AI-enabled technologies [2] - Other projects include the construction of a comprehensive international food smart park and a cultural service ecosystem platform, contributing to the acceleration and quality enhancement of the productive service industry in Banan District [2]

7日，由国家能源局印发的《可再生能源绿色电力证书管理实施细则（试行）》（以下简称《实施细 则》）公布。《实施细则》自印发之日起实施，有效期3年，其旨在规范可再生能源绿色电力证书（以 下简称"绿证"）全生命周期管理，促进绿证市场高质量发展。 "《实施细则》的出台将进一步提升绿证制度的科学性、规范性和可操作性，有效填补现有规范性文件 在实操层面的空白，对推动绿证市场高质量发展，充分释放绿色电力环境价值，助力经济社会发展全面 绿色转型具有重要意义。"国家能源局有关负责人介绍，《实施细则》的制定主要基于精准落实顶层设 计、强化机制协同衔接、切实回应社会关切三方面核心需要。 《实施细则》共10章45条，从职责分工、账户管理、绿证核发、绿证划转、绿证核销、异议处理、信息 管理、绿证监管等方面进行全面细化，构建体系完善、权责清晰的绿证全生命周期管理机制，为可再生 能源环境权益规范化运作提供制度支撑。 在职责分工方面，《实施细则》要求，发电企业或项目业主在项目建成并网一个月内完成建档立卡信息 填报并提交审核；对于分期建设并网的项目，及时更新并网容量，必要时提供或核对绿证核发所需信 息。 在绿证核发方面，《实施细则》明确，绿证 ...

国家气候中心气候预测室副主任章大全介绍，自2025年12月以来（截至12月24日），我国已经历4 次冷空气过程，较常年同期偏多1至2次。12月11日至15日的冷空气为今冬首场全国性寒潮，山西岢岚、 辽宁清原、陕西富县等地167个国家基本气象站的气温降幅达到或超过14℃。 "频繁的冷空气过程是气温剧烈波动的主因。"章大全分析指出，近期北极极涡分裂为双中心，北美 上空极涡分中心强度较强，而亚洲北部极涡则相对较弱。同时，近期我国大部地区大气环流较常年偏 强，导致冷空气过程相对频繁，但强度较弱。冷暖频繁交替，就形成了公众切身感受的"气温过山车"。 近日，黑龙江多地居民经历"冰火两重天"：前一天还在阳光下感受融融暖意，次日就不得不裹紧厚 羽绒服抵御寒风。剧烈降温导致尚未南迁的燕子来不及飞离，部分被冻伤甚至死亡。 中国气象局医院诊疗中心主任医师江岚从医学角度进一步解释说，极端日际气温变化主要通过两种 途径威胁健康。一方面，剧烈气温波动使人们难以精准把握衣物增减。若穿着过多，汗液浸湿衣物后经 寒风一吹，水分蒸发会迅速带走体表热量，导致体温骤降。此时身体会优先维持核心体温，致使免疫系 统功能暂时减弱，更易感染病毒。 这样的" ...

1月7日，记者从中国科学院获悉，"面向空间应用的锂离子电池电化学光学原位研究"项目成功在中 国空间站内开展。神舟二十一号航天员乘组在轨共同完成了实验操作。作为载荷专家，中国科学院大连 化学物理研究所研究员张洪章在实验中充分发挥了其专业优势。 该项目有哪些研究目标？这个实验是如何具体开展的？太空微重力环境对实验有何影响？实验结果 未来有哪些应用？针对以上问题，科技日报记者采访了相关专家。 锂离子电池因能量密度高、循环寿命长和安全可靠性高，已成为空间站、深空探测等航天任务的首 选储能系统。 第三问：实验成果未来有哪些应用？ 杨晓飞介绍，这项实验主要从三个关键方向展开攻关：首先，在微重力环境下，开展离子输运多场 耦合与解耦分析；其次，对金属锂沉积行为进行原位观测；最后，系统解析电极材料固液相变中的界面 动力学机制。 第一问：项目研究目标是什么？ 第二问：太空微重力环境对实验有何影响？ "在微重力环境下，锂离子电池内部的电解液行为会发生根本性改变。电解液的流动模式、分布均 匀性以及对电极材料的润湿效果，均与地面常态重力条件下存在显著差异。"杨晓飞强调，这些变化会 直接降低离子在电解液中的传输效率，改变电极表面的电化学 ...

1月7日，记者从中国科学院获悉，"面向空间应用的锂离子电池电化学光学原位研究"项目成功在中 国空间站内开展。神舟二十一号航天员乘组在轨共同完成了实验操作。作为载荷专家，中国科学院大连 化学物理研究所研究员张洪章在实验中充分发挥了其专业优势。 该项目有哪些研究目标？这个实验是如何具体开展的？太空微重力环境对实验有何影响？实验结果 未来有哪些应用？针对以上问题，科技日报记者采访了相关专家。 第一问：项目研究目标是什么？ 锂离子电池因能量密度高、循环寿命长和安全可靠性高，已成为空间站、深空探测等航天任务的首 选储能系统。 "当前航天任务对电源的研究，主要集中在微纳米尺度下电极表面离子在溶液中的传输、嵌入与脱 出机理，尤其关注电场中离子的动态行为。"中国科学院大连化学物理研究所研究员杨晓飞说，"然而， 这一研究面临两大挑战：一是离子浓度梯度同时受电场和重力场的影响，难以将二者分离进行独立分 析；二是地面实验无法完全模拟真实的太空微重力环境，难以揭示锂离子电池在微重力下的性能变化与 衰减机制。" 第二问：太空微重力环境对实验有何影响？ "在微重力环境下，锂离子电池内部的电解液行为会发生根本性改变。电解液的流动模式、分布 ...

Core Viewpoint - The article discusses the advancements and recognition of the CLED (China LED) projection system, particularly in relation to the global success of the film "Avatar 3," highlighting its potential to revolutionize the cinema experience with superior technology and domestic innovation [2][3][4]. Group 1: CLED Technology and Development - CLED is a high-end projection system developed in China, which has gained recognition during the global release of "Avatar 3," showcasing its capabilities in enhancing the cinematic experience [3][4]. - The CLED system utilizes advanced technologies such as 4K, 3D, high brightness, high frame rate, and wide color gamut, achieving international leading standards in film projection [8][11]. - The system's brightness can reach 500 nits for 3D films, significantly higher than traditional systems, and its contrast ratio is 100,000:1, setting a new benchmark in the industry [13]. Group 2: Market Position and International Recognition - CLED has become the first LED projection system to receive DCI certification, which is crucial for international film distribution, indicating its compliance with global standards [14][15]. - The establishment of the CLED Los Angeles mastering center allows for the production of Hollywood films in CLED format, further solidifying its position in the international market [18][19]. - The technology has been implemented in 26 overseas theaters, with 10 specifically featuring CLED, demonstrating its growing global footprint [19]. Group 3: Future Prospects and Industry Impact - The company aims to create a complete high-tech film industry chain that covers filming, post-production, and distribution, enhancing the quality of both domestic and international films [19][20]. - The integration of CLED technology represents a significant leap in film projection capabilities, positioning China as a leader in the global cinema technology landscape [20]. - The article emphasizes the importance of maintaining quality standards in the competitive LED market to protect the advancements made in the film industry [20].

Core Viewpoint - The successful implementation of the sliding roof technology at the Dongying South Station project represents a significant innovation in large-scale roof engineering in China, providing a replicable solution for similar future projects [1][2]. Group 1: Project Overview - The Dongying South Station project is part of the Jinan-Weifang High-Speed Railway, with a total building area of 74,000 square meters and a station layout of 7 platforms and 20 tracks, designed to accommodate up to 2,200 people [2]. - The project is constructed by China Railway Construction Corporation Limited, featuring a sliding roof unit that weighs 1,400 tons and spans 195 meters [1]. Group 2: Innovative Techniques - The project team utilized a ground assembly and overall sliding process to convert complex high-altitude operations into safer ground work, ensuring the sliding unit's stability and precision [1]. - An intelligent monitoring and control system was developed, incorporating a network of strain sensors for real-time data collection on the sliding trajectory and structural stress, ensuring precise coordination of the sliding process [2]. Group 3: Technological Advancements - The project has led to the invention of related patents and the application of a series of intelligent methods and innovative results, ensuring the success of the sliding operation and creating a set of construction technologies that can be replicated for future high-difficulty station constructions [2]. - The completion of the Jinan-Weifang High-Speed Railway will significantly enhance connectivity between the Beijing-Tianjin-Hebei region, the Shandong Peninsula, and the Yangtze River Delta [2].

针对这些问题，团队研发出一款新型高精度感知应用：无需用户穿戴 任何设备，仅靠家中WiFi信号就能精准判断用户在哪个位置、处于什 么状态、正在做什么，进而让智能家居设备提供更人性化的服务。其 原理是，人体移动会扰动WiFi信号，通过智能算法解析这些扰动，即 可感知人体的位置、姿态与行为。 最近，天津大学网络与云计算团队在无线感知领域取得关键进 展。他们让寻常的WiFi信号化身家居环境中的"管家"，通过WiFi信号 分析人类活动变化，从而判断人的需求，让智能家居设备提供相应服 务。相关研究成果近日发表在学术期刊《国际计算机学会交互式、移 动式、可穿戴式和普适技术》上。 目前大多数智能家居设备依赖用户指令或特定传感器工作，难以持 续、无感地获取用户实时状态与需求。若想获取更多用户数据，就要 使用摄像头或可穿戴设备。 不过，要让这项应用"飞入百姓家"，需解决两大难题。首先是部署 难。传统的部署方式需要专业人员手持设备，进入房间采集WiFi信 号，并手动输入路由器、智能音箱等设备的位置信息。相关操作复杂 耗时，普通用户难以完成。其次是感知不准。WiFi信号遇到墙壁、家 具等都会反射或折射。在真实家庭环境中，信号传播路径 ...

Core Viewpoint - The successful completion of the Jiangyin-Jingjiang Yangtze River Tunnel marks a significant breakthrough in tunnel engineering, overcoming challenges related to high water pressure and soft soil conditions, showcasing China's advanced capabilities in underground engineering [1][9]. Group 1: Project Overview - The Jiangyin-Jingjiang Yangtze River Tunnel spans approximately 6.4 kilometers and is designed to connect the two banks of the Yangtze River [1]. - The project faced a major setback in February 2023 when a shield machine encountered an unexpected halt after advancing 3.2 kilometers, leaving 1.7 kilometers to be completed [2]. Group 2: Innovative Solutions - The construction team proposed an innovative solution to deploy a second shield machine from the opposite bank to meet the first machine, a method that had not been previously considered [2]. - Extensive discussions and validations involving multiple experts and academicians were conducted to ensure the feasibility of the shield machine docking approach [2][3]. Group 3: Technical Challenges - The primary challenge was achieving precise docking of two shield machines in a high-pressure, water-rich geological environment, requiring millimeter-level accuracy [3]. - A comprehensive monitoring system was developed, incorporating cameras and sensors to collect real-time data on the excavation process and surrounding conditions [3]. Group 4: Successful Docking - The docking was successfully achieved with a horizontal error of 0 millimeters and a vertical error of 2 millimeters, surpassing initial design expectations [4]. - The successful docking was a critical milestone, allowing the project to proceed to the next phase of construction [4]. Group 5: Groundwater Control - To manage the groundwater in the soft soil surrounding the docking segment, a non-symmetric freezing method was employed, creating a solid "ice barrier" to ensure safety during subsequent construction [5]. - The freezing process involved drilling over 300 pipes to lower the temperature of the water-rich soil, with strict precision required to avoid any deviations that could compromise the project [5][6]. Group 6: Final Steps - The final phase involved the dismantling and removal of the shield machines, which required careful cutting and manual labor due to space constraints [7][8]. - The entire process of cutting and transporting approximately 2000 tons of material was executed with meticulous attention to maintain the integrity of the frozen soil [8]. Group 7: Project Completion - The tunnel's main structure was completed on November 29, 2025, with no safety incidents reported throughout the construction process [9]. - The project is expected to be fully operational by mid-2026 and serves as a model for future complex underground construction projects [9].