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厚度6毫米的稀土永磁电机研制成功
Ke Ji Ri Bao· 2025-08-05 23:36
Core Insights - The establishment of China's first intelligent demonstration line for rare earth disc motors marks a significant advancement in high-end rare earth permanent magnet motor research and industrialization, opening a new competitive landscape globally [1][2] Group 1: Product Development - The first product from the demonstration line is a micro rare earth permanent magnet axial flux motor, which is only 6mm thick and has a power output of 3 watts, reducing size by 60% and weight by 80% compared to similar products [1] - This motor achieves an impressive rated speed of 4500-5500 RPM, a maximum torque of approximately 15 mN·m, and over 70% efficiency, exemplifying the concept of "small size, big energy" [1] Group 2: Production and Capacity - The demonstration line is expected to achieve mass production by the end of this year, with an annual production capacity of 500,000 units [2] - The establishment of this line is a result of deep integration of production, education, research, and application, signaling a quiet revolution in the micro motor sector [2] Group 3: Future Applications - The research team has established cooperation intentions with well-known domestic automotive companies, with the product set to be first applied in automotive intelligent cockpit cooling systems [1] - Future application scenarios for the motor will extend to consumer electronics, air conditioning clothing, drones, and robotic joint modules [1]
新型氢燃料电池发动机挑战零下30摄氏度严寒
Ke Ji Ri Bao· 2025-08-05 23:36
Core Insights - Shuo Zhou Wenjing Energy Technology Co., Ltd. has successfully launched the 165kW hydrogen fuel cell engine, marking a significant advancement in Shanxi's hydrogen energy industry from research to industrial application [1] Group 1: Product Development - The 165kW hydrogen fuel cell engine is the first high-power, long-life hydrogen fuel cell system in Shanxi [1] - The engine features advanced technology and materials, with a platinum loading of only 0.15 grams per square centimeter and a rated efficiency of 44%, peaking above 60% [1] - Hydrogen-powered heavy trucks equipped with this engine consume only 10 kilograms of hydrogen per 100 kilometers [1] Group 2: Performance and Reliability - The engine can achieve stable endurance of over 500 kilometers in extreme cold environments, specifically at temperatures as low as -30 degrees Celsius [1] - It incorporates a multi-in-one integrated controller and a hardware-software integrated electronic architecture, enabling precise monitoring and control of the fuel cell stack's health through intelligent control algorithms [1] - The engine can complete self-heating startup within 30 seconds in sub-zero conditions [1] Group 3: Industry Impact - The successful launch of this hydrogen fuel cell engine provides a reliable, zero-carbon transportation solution for cold regions, breaking the limitations of low-temperature environments on new energy vehicles [1] - The performance, energy efficiency, and reliability of this engine are considered to be at a globally leading level, which is crucial for promoting a revolution in global transportation energy [1]
大连先进光源预研项目完成百万赫兹重复频率电子束流贯通实验
Ke Ji Ri Bao· 2025-08-05 23:33
Core Insights - The successful experiment of achieving a stable 1 million Hertz repetition frequency electron beam marks a significant milestone for the Dalian Advanced Light Source project, indicating that the research team has mastered key technologies necessary for its future development [1][3]. Group 1: Project Overview - The Dalian Advanced Light Source pre-research project was initiated in 2020, with a collaborative team from Dalian Institute of Chemical Physics and Shenzhen Advanced Light Source Research Institute, supported by the Dalian municipal government [1]. - The project aims to overcome key technologies for generating high repetition frequency and high-quality electron beams [1]. Group 2: Technical Achievements - After five years of efforts, the team successfully developed critical technologies including photoinjector electron guns, ultrafast laser systems, solid-state RF power sources, superconducting accelerators, and low-temperature liquid helium systems [1]. - The testing platform has achieved a stable acceleration operation of 0.1 milliampere average current electron beam, with specific technical indicators such as electron beam energy exceeding 100 million electron volts and a single pulse charge greater than 100 picocoulombs [2]. Group 3: Significance of the Experiment - The success of this experiment is crucial for the construction and research of high repetition frequency free electron laser devices in China [3].
全球首创“一脑多态”架构跨场景集群作业人形机器人发布
Ke Ji Ri Bao· 2025-08-05 23:32
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 ...
新型基因编辑技术开发成功
Ke Ji Ri Bao· 2025-08-05 09:52
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]
双黑洞并合事件中发现第三致密天体存在迹象
Ke Ji Ri Bao· 2025-08-05 09:52
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]
“DNA亲子鉴定”揭示马铃薯身世之谜
Ke Ji Ri Bao· 2025-08-05 09:52
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]
国家能源集团上半年新能源投产规模创历史同期最好水平
Ke Ji Ri Bao· 2025-08-05 07:33
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 ...
广东惠州抽水蓄能电站年启动次数创同期历史新高
Ke Ji Ri Bao· 2025-08-05 02:39
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]
为何心律失常“盯”上中青年人
Ke Ji Ri Bao· 2025-08-05 02:11
Core Viewpoint - The increasing prevalence of arrhythmia among young and middle-aged individuals is raising public awareness about heart health, with lifestyle factors being a significant contributor to this trend [2][3]. Group 1: Prevalence and Causes - Approximately 17 million people die from cardiovascular diseases globally each year, with about 25% of these deaths attributed to arrhythmia [2]. - The common types of arrhythmia in young and middle-aged individuals include sinus tachycardia, supraventricular tachycardia, and premature beats, which are often triggered by lifestyle factors such as stress, poor sleep, and excessive consumption of stimulants [2][3]. - Factors contributing to the rise in arrhythmia among younger populations include high stress levels, anxiety, irregular sleep patterns, sedentary lifestyles, obesity, and excessive use of electronic devices [2][3]. Group 2: Differentiating Arrhythmias - Physiological arrhythmias are typically transient and reversible, often occurring during specific conditions like exercise or stress, while pathological arrhythmias are more serious and persistent without clear triggers [4][6]. - Symptoms indicating the need for immediate medical attention include severe palpitations, chest pain, and fainting, especially in individuals with a history of heart disease [4][7]. Group 3: Lifestyle Improvements - Improving lifestyle choices is crucial for managing arrhythmia symptoms, with recommendations including maintaining a regular sleep schedule, managing stress, and reducing intake of stimulants like caffeine and alcohol [5]. - A balanced diet rich in electrolytes and regular moderate-intensity aerobic exercise are also advised to mitigate symptoms [5]. - Self-monitoring of heart health, including awareness of family history and regular check-ups, is essential for early detection and management of potential heart issues [5].