本次实测活动以合肥市政务中心国家级车网互动规模化应用试点项目为中心，覆盖社会运营场站、公交 场站、公共机构场站、企业专用场站四大场景、5个重点示范站点。国网安徽省电力有限公司合肥供电 公司数字科技部主任万顺介绍，活动当天，合肥各车网互动示范站最大放电总功率超过2000千瓦，累计 放电量超过5000千瓦时，相当于一户普通居民家庭3年左右的用电量。 2023年，合肥虚拟电厂实现技术升级，国内首创"5G+量子"安全实时调度新模式。"5G技术的应用使合 肥虚拟电厂调控负荷的速度由过去的90秒缩短至15秒内，而量子加密技术则为负荷调控指令加上了随机 变化的密码，大幅提升负荷调控指令的安全性。"国网安徽省电力有限公司合肥供电公司电力调度控制 中心专责陈璐介绍。 郑女士是参加本次实测的新能源车主。当天她的车反向放电35分钟，放电量约28千瓦时。"感觉很划 算，峰谷电价差的部分，加上每千瓦时电补贴2元，算下来通过这次反向放电可以获得80元左右的收 益，期待车网互动大规模应用早日到来。"郑女士说。 国内首次基于"5G+量子"虚拟电厂精准调度的车网互动规模化实测活动日前在安徽省合肥市举行。本次 实测活动共吸引合肥超6000辆次新 ...

全球最疯狂的"蹦床"不仅能左右摇摆，还能"拐弯"。这款微型"蹦床"由德国康斯坦茨大学、丹麦哥本哈 根大学和瑞士苏黎世联邦理工学院的物理学家共同设计并制造。其目的在于展示一种改进的声子传输方 法，例如将其应用于微芯片中，引导声子通过狭窄的弯道。相关研究论文发表于最新一期《自然》杂 志。 想象一下这样一张"蹦床"：它宽0.2毫米，表面厚度仅有两千万分之一毫米，整个表面布满了规则排列 的圆形、三角形孔洞图案。而且这张"蹦床"一旦动起来，几乎不会损失任何动量，会一直摆动下去，根 本停不下来。 这张"蹦床"的摆动方式可不止上下跳动这么简单。在其多孔表面的不同区域，"蹦床"能同时向不同方向 摆动，包括横向摆动。在中心区域，甚至还有一个"蹦床中的蹦床"。最神奇的是，在这里，摆动会以完 美的三角形"拐弯"。 实际上，这张"蹦床"是声子的波导，即一层由氮化硅制成的振动超薄膜。声子，可说是"声音量子"，即 固体晶格振动的基本激发单元。 物理学家希望通过这张"蹦床"来展示如何利用独特的表面结构（基于数学拓扑原理），在几乎不损失动 量的情况下，引导声子绕过弯角。这在需要引导信号绕过边缘和曲线的微芯片电路中尤为重要。 实验结果令人印象 ...

Core Insights - A new chemical "building block" method developed by a team from the University of Cambridge allows for the efficient addition of single carbon atoms to molecular structures, facilitating the construction of larger molecules. This breakthrough offers a simple, universal, and scalable molecular building strategy, significantly benefiting drug development and complex chemical design [1] Group 1: Methodology and Innovation - The method focuses on a new strategy for "one-carbon-at-a-time" extension of molecular chains, specifically targeting alkenes, which are common organic compounds containing carbon-carbon double bonds. These structures are prevalent in various everyday products, including antimalarial drugs like quinine, agricultural chemicals, and fragrances [1] - Traditional methods for adding carbon atoms to molecules often require multiple reaction steps, making the process cumbersome and inefficient. The new method employs a "one-pot" chemical reaction process that greatly simplifies operational steps and enhances applicability [1] - A key component of this method is a "single carbon transfer reagent" based on allyl sulfone, designed to precisely insert a carbon atom during the reaction. This reagent first binds with the target molecule to initiate the connection reaction, then undergoes structural changes to complete the carbon addition in situ, resembling a building block assembly process [1] Group 2: Applications and Implications - To validate the method's effectiveness, the team applied it to modify the structure of the well-known immunosuppressant cyclosporin A. They successfully added one to two carbon atoms to its molecular structure, creating multiple new derivatives. Some of these new drug versions retained their immunosuppressive activity, while others lost this function, indicating that minor structural changes can significantly impact drug mechanisms, providing new possibilities for modulating drug efficacy [2] - The ability to finely adjust molecular structures is expected to drive significant advancements in medicinal chemistry, as even slight differences in molecular structure can lead to substantial variations in efficacy, toxicity, or metabolic characteristics. Additionally, the method allows for the introduction of various functional groups, further expanding the scope of molecular design [2] - Beyond pharmaceuticals, this technology has broad applications in agricultural chemicals, materials science, and other industries, particularly in scenarios requiring fine-tuning of performance through carbon chain structure adjustments [2]

Core Insights - The article highlights the development of the J250ST001 integrated propulsion motor by the China Aviation Power Control System Research Institute, which is designed for 2 to 3-ton class electric vertical takeoff and landing (eVTOL) aircraft [1][2] - The eVTOL market in China is projected to reach 50 billion yuan by 2030, indicating a strong demand for electric motors and control systems [2] Group 1: Product Development - The J250ST001 motor weighs less than 30 kilograms, has a peak power of 125 kilowatts, and can run at peak performance for two minutes, with technical specifications that are leading domestically and in some cases superior to international counterparts [3] - The motor integrates the electric motor, control system, and cooling system, resulting in a smaller size, lighter weight, and lower energy consumption compared to similar power levels [3] Group 2: Market and Industry Trends - The eVTOL market is characterized by stringent safety and reliability requirements for motors, with power density requirements being twice that of electric vehicle motors [2] - The article notes that only one foreign motor company has received a type certificate from the European Aviation Safety Agency, while no domestic motor products have yet obtained airworthiness certification [3] Group 3: Technological Advancements - The research institute has filed over 20 patents related to the motor and employs digital simulation and smart manufacturing techniques in the development process [3] - The company aims to focus on the development of medium to high-power motor products and accelerate the airworthiness compliance verification process to promote the low-altitude economy [3]

Core Viewpoint - The new rapeseed variety "Zhongyouza 501" developed by the Chinese Academy of Agricultural Sciences has set a record for oilseed yield in moderately saline-alkaline soil, demonstrating strong drought and salt-alkali resistance, which is crucial for agricultural productivity in challenging conditions [1][2]. Group 1: Agricultural Innovation - "Zhongyouza 501" is the only significant achievement in the field of biological breeding for rapeseed in China, developed over ten years, featuring traits such as high yield, high oil content, and resistance to salt-alkali and diseases [2]. - The variety maintains high photosynthetic efficiency under drought and saline-alkaline stress conditions, utilizing a planting density of over 30,000 plants per acre to enhance water and fertilizer efficiency [2]. Group 2: Performance and Impact - In a demonstration field in Shaanxi, "Zhongyouza 501" achieved a mechanical harvest yield of 312.23 kg per mu (approximately 0.067 acres) despite adverse conditions, with soil salinity reduced by 20% compared to surrounding areas [1]. - The variety has set high yield records in multiple provinces, including 302.11 kg per mu in Hubei and an average of 377.68 kg per mu in Jiangsu, establishing new benchmarks for winter rapeseed production in China [2].

"使用水代替芳香烃作为溶剂的环保涂料早已存在，但在市场上并未取代油性漆。"在日前举办的南康好 家具走进人民"好房子"活动中，中国农业大学教授安杰表示，当前水性漆的使用存在过程污染、有效封 闭木料难、施工烦琐、成本高等缺点，致使家具在绿色化推进过程中遇阻。 2025年政府工作报告提出，适应人民群众高品质居住需要，完善标准规范，推动建设安全、舒适、绿 色、智慧的"好房子"。记者近日在采访中了解到，安杰教授团队从新材料领域的基础研究做起，解决产 业痛点，并与企业开展早期的深度合作，及时转化新材料合成技术，借助第三方评估等力量，助力地方 产业转型升级，破题"好房子"绿色化瓶颈。 千亿级现代产业集群的绿色转型之路 研发适用于木材喷涂的涂层技术 江西省赣州市南康区家居产业规模2016年已突破千亿元，2024年达2800亿元。产业发展对当地环境污染 的情况引起中央环保督察高度关注，这一千亿级现代产业集群的绿色转型迫在眉睫。 资料显示，木器涂装这一细分领域VOC（挥发性有机化合物）排放量达到人类活动VOC总排放量的2% —5%。家具"绿色"是实现"好房子"绿色、健康的核心支撑，推动绿色家具落地成为科研力量与企业行 业共同面临 ...

福建省科技厅二级巡视员陈建林表示，农林人工智能研究院的揭牌，既是福建农林大学主动响应国 家"农业强国""数字中国"战略的生动实践，也是服务"双循环"新发展格局、助力福建特色现代农业腾飞 的关键布局，将有力推动全省农业科技现代化、抢占智慧农业发展的制高点。 6月6日，福建农林大学农林人工智能研究院在福建省福州市揭牌。据介绍，研究院将积极探索应用计算 机视觉、机器学习、物联网和机器人等技术，推动农林业向精准化、智能化转型。 "成立农林人工智能研究院，是学校立足时代前沿、服务国家战略、推动区域发展的重要举措。"福建农 林大学党委书记赖海榕表示，学校将着力打造战略支撑的高端平台，努力将研究院建设成为农林人工智 能的技术创新高地；聚力构建学科交叉的创新矩阵，以人工智能支撑植物保护、林学一流培优学科建 设；围绕新农科、新工科等建设要求，加快构建产学研用深度融合的农林人工智能人才培养体系。 据悉，研究院下设人工智能及农芯技术、智能物联技术、农林机器人关键技术、智能视觉与大数据等六 大研究中心，将汇聚整合校内外优势资源，开展农林信息智能感知、农林数据智能分析与决策、农林智 能装备与机器人、智慧农林系统集成等方面的研究。 揭牌 ...

研究人员绘制的2024年9月28日的南极洲上空臭氧层。图片来源：NASA官网 1982年1月22日，身着户外服的尚克林在使用多布森臭氧分光光度计。图片来源：英国南极调查局官网 【今日视点】 ◎记者 张佳欣 40年前，3位英国科学家报告称，南极洲上空正发生着一些出乎意料的事情。彼时，他们未曾料到，自 己竟意外成就了20世纪最伟大的地球物理发现之一，翻开了一页意义非凡的科学篇章。 1985年5月16日，该团队在《自然》杂志上发表论文，明确指出南极洲上空的大气臭氧层存在一个空 洞。这一发现促使国际社会迅速采取行动，催生了人类历史上首个应对环境问题的全球性条约——《蒙 特利尔议定书》。至今，它仍是唯一一份获得全球所有国家批准的联合国条约，可谓拯救了地球。 日前，英国南极科学研究所临时科学主任多米尼克·霍奇森将这一发现誉为"20世纪最重要的环境发现之 一"，强调其彰显了"坚实的科学、清晰的沟通和国际合作"在应对全球威胁方面的强大力量。 分析十年数据发现异常 作出这一发现的3位科学家是英国南极调查局的乔·法曼、布莱恩·加德纳和乔纳森·尚克林。多年来，他 们一直默默收集并分析多布森臭氧分光光度计采集的数据。 起初，他们只是 ...

Group 1 - The core viewpoint of the news is the signing of the "Yangtze River Delta - Yangtze Economic Belt Collaborative Technology Innovation Leading New Quality Productivity Development Cooperation Framework Agreement" by the technology departments of 11 provinces and cities, aiming to promote cross-regional technological and industrial innovation [1][2] - The Yangtze River Delta region has established a collaborative innovation community and a mechanism for joint tackling of key core technologies, with 24 innovation alliances being formed [1] - In 2024, Jiangsu will implement 19 joint tackling and basic research projects, and lead the establishment of the Yangtze River Delta Seed Industry Innovation Laboratory Alliance [1] Group 2 - The agreement emphasizes "Science and Technology Innovation + Industry" as the guiding principle, focusing on key areas such as artificial intelligence, biomedicine, quantum technology, strategic new materials, and green low-carbon technologies [2] - The collaboration aims to enhance cross-regional synergy and deep integration of technological and industrial innovation, optimizing the allocation of research forces and sharing resources [2] - The initiative is expected to transform the advantages of scientific education and talent into innovation development advantages, contributing more significantly to the national agenda [2]

Group 1 - The 9th China-South Asia Expo will be held from June 19 to 24, 2025, in Kunming, Yunnan, showcasing industries with significant potential for economic cooperation with South Asian countries, including green energy, modern agriculture, healthcare, and cultural tourism [1] - A new "South Expo Release Hall" will be established for exhibitors to launch new products, technologies, and services, with 29 companies already registered to showcase innovations across various sectors such as biomedicine, new energy vehicles, and internet platforms [1] - Trade between China and South Asian countries is projected to approach $200 billion in 2024, having doubled over the past decade with an average annual growth rate of approximately 6.3% [1] Group 2 - Future efforts to enhance economic cooperation will focus on strengthening policy communication, utilizing platforms like the China-South Asia Expo, and fostering collaboration among government, industry, academia, and research [2] - New growth areas will be explored, including energy transition, digital economy, low-carbon development, and smart manufacturing, while maintaining stability in supply chains [2] - Support for the industrialization process in South Asian countries will be encouraged, with Chinese enterprises urged to expand trade cooperation based on market principles [2]