5日，记者从中国科学院大连化学物理研究所（以下简称"大连化物所"）获悉，由中国科学院院士、大 连化物所研究员杨学明，大连化物所研究员张未卿带领的联合研发团队，首次成功实现高重复频率极紫 外自由电子激光装置（以下简称"大连先进光源"）预研项目1百万赫兹重复频率电子束流的稳定贯通实 验。这标志着大连先进光源联合团队已掌握相关核心技术，为未来大连先进光源的建设奠定了坚实基 础。 据了解，大连先进光源预研项目启动于2020年，由大连化物所大连光源科学研究室与深圳先进光源研究 院组成的联合团队共同承担，大连市政府资助部署，旨在攻克产生高重复频率、高品质电子束的各项关 键核心技术。 经过5年的不懈努力，联合团队相继攻克了光阴极电子枪、超快激光系统、全固态射频功率源、超导加 速器、低温液氦系统等关键技术，并于今年上半年完成了设备安装和在线独立调试。在半个月的系统联 合调试后，联合团队尝试开展百万赫兹级重复频率电子束流实验，并于7月24日23时15分成功实现了稳 定出束。 （文章来源：科技日报） 目前，该束流测试平台已实现0.1毫安平均流强电子束流的稳定加速运行。具体技术指标包括电子束流 能量大于1亿电子伏特、单脉冲电荷量大 ...

凌枢深度融合优艾智合在半导体和能源领域的场景积淀，针对半导体制造与能源行业的需求和应用场 景，精准契合两大行业灵巧柔性作业的严苛要求，在半导体制造中构建起智能巡检、精密辅料装填等关 键环节的能力矩阵，在能源电力行业中聚焦于复杂环境下的巡检运维等高价值场景。 "一脑多态"，即一个机器人智能大脑适应多种机器人本体具身形态，可根据具体应用场景选择不同形态 的机器人。凌枢基于"一脑多态"具身智能大模型架构，突破工业场景结构化、标准化范式，其身高1.66 米，体重40千克，全身配置33个自由度，具备全向移动能力，可适应复杂地形环境。 优艾智合创始人、首席执行官张朝辉解释道："工业领域对机器人的需求非常多样且充满挑战——比如 精细作业、复杂任务、高危环境等场景都有特定要求。那么，有没有真正能够把所有问题都解决的一个 形态的机器人呢？"基于这一行业痛点，优艾智合经过多年研发，于2024年推出了名为MAIC的"一脑多 态"系统。该系统整合了感知、决策、执行等核心功能，是企业持续打磨、深耕的高泛化具身智能系 统。张朝辉认为，这种"一脑多态"模式是工业具身智能发展的必然方向。 5日，由合肥优艾智合机器人科技有限公司（以下简称"优 ...

Core Insights - A new gene editing technology has been developed by researchers from the Chinese Academy of Sciences, enabling precise manipulation of large DNA segments ranging from thousands to millions of base pairs, significantly enhancing the scale and capability of gene editing [1][2] Group 1: Technology Development - The new programmable chromosome-level large DNA manipulation technology, termed PCE, integrates three innovative systematic technical pathways [1] - The technology has demonstrated strong capabilities in plant and animal cell experiments, achieving precise insertion of an ultra-large DNA segment containing 18,800 base pairs, directional replacement of a DNA sequence with 5,000 base pairs, inversion of a long chromosome segment with 12 million base pairs, deletion of a long chromosome segment with 4 million base pairs, and even the movement of entire chromosomes [1] Group 2: Application Potential - The technology has been successfully applied to rice, where a DNA segment containing 315,000 base pairs was precisely inverted, resulting in the cultivation of herbicide-resistant rice germplasm, indicating broad application prospects [2] - The technology not only allows for multi-gene stacking but also enables manipulation of genome structure, paving new paths for crop trait improvement and genetic disease treatment, potentially advancing new breeding strategies and synthetic biology [2] - Reviewers have noted that this work represents a significant breakthrough in the field of genetic engineering, with enormous application potential in breeding and gene therapy [2]

Core Insights - The research team led by Han Wenbiao from the Shanghai Astronomical Observatory has discovered that binary black holes may not be "lonely wanderers," but could be influenced by a third dense celestial body during merger events, providing new clues to the formation of binary black holes [1][2] - The findings were published on August 1 in the Astrophysical Journal Letters, marking a significant advancement in understanding the mechanisms behind binary black hole formation and evolution [1] Group 1 - The international gravitational wave detection collaboration has observed over 100 gravitational wave events since the first detection in 2015, with most originating from binary black hole mergers, which are crucial for understanding the physical processes involved [1] - The research team previously proposed a bold scientific hypothesis in 2018, suggesting that a supermassive black hole and a stellar-mass binary black hole could form a "trio," where the binary black holes are influenced by the supermassive black hole's gravity, leading to gravitational wave emissions [1][2] - The LISA gravitational wave detection plan has included this "trio" system in its white paper, and it has been recognized as a unique wave source by China's space gravitational wave detection program [1] Group 2 - The research focused on the gravitational wave event GW190814, which features two black holes with a mass difference of nearly ten times, suggesting they may have formed as part of a "trio" with a supermassive black hole [2] - The team identified that if binary black holes merge near a third dense body, their orbital motion would produce a line-of-sight acceleration, altering the gravitational wave frequency through the Doppler effect, leaving a unique "signature" in the signal [2] - This discovery marks the first clear indication of a third dense body in a binary black hole merger event, implying that the binary black holes may not have formed in isolation but within a more complex gravitational system, which is significant for revealing the channels of binary black hole formation [2]

Core Insights - The research conducted by the team led by Academician Huang Sanwen reveals the hybrid origin of the potato group, the formation of tubers, and their radiation differentiation, providing a new theoretical perspective for potato genetic breeding [1][2] Group 1: Research Findings - The potato group originated from an ancient hybridization event between the tomato group and the solanum group approximately 9 million years ago, resulting in the formation of tubers [1] - The study analyzed high-quality genomic data from 101 potato group samples, 15 tomato group samples, 9 solanum group samples, and 19 other nightshade species, with most genomic data being reused [2] - The genetic contribution from tomatoes and solanum to all potato individuals was found to be in a stable balance, with a ratio of approximately 4:6 [2] Group 2: Evolutionary Insights - The divergence between solanum and tomatoes began around 14 million years ago, with hybridization occurring approximately 5 million years later, leading to the earliest potato plants with tubers around 9 million years ago [2] - The study concludes that potatoes are a hybrid species resulting from the crossbreeding of solanum and tomatoes, with tomatoes serving as the maternal parent and solanum as the paternal parent [2]

记者7月30日从国家能源集团2025年二季度新闻发布会上获悉，上半年，国家能源集团生产经营企稳向 好、重点项目迈出坚实步伐，获取新能源指标1439万千瓦，投产新能源911万千瓦、创历史同期最好水 平。 黄清表示，下半年，国家能源集团将充分发挥创新引领作用，持续完善科技创新体系，高标准制定科技 研发体系建设方案，加快研究总院和各产业研究机构建设，打造以我为主、创新链产业链融合的研发组 织体系和协同创新平台；加快发展优质清洁能源，坚持集约化、规模化、基地化发展方向，积极培 育"沙戈荒"大基地项目，开发一批流域水风光一体化基地，更加注重风电优质资源规模化开发，保持风 电装机领先优势，培育壮大战略性新兴未来产业，科学布局绿色氢氨醇、新型储能、CCUS、钍基熔盐 堆等产业。（陆成宽） 责任编辑：江蓬新 上半年，国家能源集团生产经营持续改善向好，能源保供有力有效，自产煤保持月均5100万吨高位水 平，北方港下水煤市场占有率保持40%以上，煤电发电利用小时保持领先，疆煤出区量创历史新高，购 销两端电煤中长协签约率、兑现率均明显高于国家要求。"6月份以来，截至7月29日，国家能源集团自 产煤1.01亿吨，同比增长1.8%；发 ...

Core Insights - The Guangdong Huizhou Pumped Storage Power Station has achieved significant operational milestones, with annual startup counts reaching 10,000, a 39.5% increase compared to the previous year, and annual operating hours exceeding 20,000, a 9.97% increase [1][2] - The power station plays a crucial role in load regulation and renewable energy consumption in the Guangdong-Hong Kong-Macao Greater Bay Area, with its capacity accounting for nearly one-quarter of the total operational pumped storage in the region [1][2] Group 1 - The Huizhou Pumped Storage Power Station has installed eight 300,000 kW large pumped storage units, with a total installed capacity of 2.4 million kW, ranking second nationally [1] - The station's operational data has set historical records, completing its annual startup count 77 days earlier and its operational hours 16 days earlier than last year [1] - The station's adjustment capacity reaches 4.8 million kW, allowing for flexible operation to meet power system demands, maintaining the highest frequency of operation in the Greater Bay Area [1] Group 2 - The demand for pumped storage stations has increased significantly due to the rising share of renewable energy in Guangdong's power system [2] - During the peak summer period, Guangdong's maximum load reached 164 million kW, with 19.36 million kW of pumped storage adjustment capacity providing over 10% support for the record load [2] - The Huizhou Pumped Storage Power Station has adjusted over 3.7 billion kWh of electricity this year, equivalent to the electricity needs of 2.93 million households for seven months [2]

近日，一中年歌手在演唱会上自曝"就算心跳乱了节奏，我还是会继续努力。"此前，他被诊断出心脏问 题，每天需靠药物控制。这引发了公众对心脏健康的关注。近年来，心脏问题越来越频繁地"找"上了中 青年人，特别是心律失常正日趋普遍。那么，心律失常缘何趋向年轻化？科技日报记者就此采访了多位 专家。 心律失常人群日益年轻化 《中国全科医学》杂志刊发的有关研究显示，在全球范围内，每年约1700万人死于心血管疾病，其中约 1/4为心律失常引起的猝死，且发生心律失常的人群正日益年轻化。 中南大学湘雅医院老年医学科副主任医师李非介绍，老年人心律失常通常以房扑/房颤、房室传导阻滞 为主，更多与高血压、冠心病、肺心病及瓣膜退行性病变等基础疾病相关，需给予长期治疗。 中南大学湘雅医院心内科副主任医师赵伊遐介绍，中青年人常见的心律失常主要包括窦性心动过速、室 上性心动过速、早搏（房性或室性）以及部分心房颤动。相比老年人，中青年人心律失常通常发作较 急，发病通常为短期，结构性心脏病比例较低，但症状表现如心悸、胸闷等更为明显。 为什么越来越多的年轻人出现心律失常？赵伊遐介绍，主要与精神压力大、焦虑失眠、熬夜等生活节奏 失调，过量摄入咖啡、能量 ...

Group 1: Technological Innovations - The High Energy Photon Source (HEPS) in Beijing is the first fourth-generation synchrotron radiation source in Asia, capable of producing light one trillion times brighter than the sun, enabling detailed analysis of materials at the nanoscale [2][3] - The EAST nuclear fusion experiment in Hefei achieved a world record of 100 million degrees Celsius for 1000 seconds, contributing to advancements in fusion energy [4] - The integration of artificial intelligence, 5G, and digital twin technologies in the automotive industry has led to precision manufacturing processes in Anhui, with the province leading in both automotive and new energy vehicle production [7] Group 2: Industry Development and Economic Impact - Guangdong's low-altitude economy has surpassed 100 billion yuan, with consumer drones holding 95% of the national market share, indicating a robust growth in the drone industry [7] - The approval of a new low-calorie sweetener, allulose, produced through a novel fermentation method, is expected to create new opportunities in China's health industry [8] - The Beijing-Tianjin-Hebei region has seen a 154% year-on-year increase in new energy vehicle production, highlighting the effectiveness of regional industrial collaboration [10] Group 3: Talent and Innovation Ecosystem - The attraction of top talent is crucial for innovation, with Beijing's scientific community fostering an environment conducive to groundbreaking research and collaboration [5] - The establishment of the XbotPark robotics base in Dongguan exemplifies the successful integration of government support and enterprise operation, leading to the incubation of over 140 high-tech companies [11] - The Greater Bay Area is evolving into a hub for innovation, with a complete innovation ecosystem that includes basic research, technology breakthroughs, and commercialization [11]

Core Insights - The research team from the Institute of Modern Physics of the Chinese Academy of Sciences has made significant progress in the study of rare decay modes of atomic nuclei, successfully observing the new nuclide aluminum-20 and its decay through a rare three-proton emission mode [1][2] Group 1: Research Findings - Over 3,300 nuclides have been discovered, with fewer than 300 being stable nuclides found in nature; the rest are unstable and undergo radioactive decay [1] - The study utilized the fragment separator at the Helmholtz Institute and employed in-flight decay experimental techniques to measure the angular correlations of decay products from aluminum-20 [2] - Aluminum-20 is the lightest aluminum isotope discovered experimentally, located outside the proton drip line and lacking seven neutrons compared to stable aluminum isotopes [2] Group 2: Theoretical Implications - The research team applied the Gamow shell model and Gamow coupling method for theoretical calculations, successfully reproducing the measured decay energy of aluminum-20 and predicting its ground state spin-parity [2] - The study explored the isospin symmetry between aluminum-20 and its mirror nucleus nitrogen-20, revealing a breaking of this symmetry, which is significant for nuclear structure research [2]