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科学家用人类干细胞构建出“类血细胞” 成功模拟胎儿血液发育过程
Ke Ji Ri Bao· 2025-10-14 23:54
Core Insights - Researchers at Cambridge University have developed "blood-like cells" using human stem cells, which can simulate multiple key stages of early human development, including the generation of blood stem cells [1][2] - The new human embryo-like model accurately replicates the initiation of the hematopoietic system in embryos, providing a powerful tool for drug screening, early blood and immune system development research, and modeling blood diseases [2] Group 1 - The embryo-like structures exhibit self-organization capabilities, forming the three primary germ layers (ectoderm, mesoderm, and endoderm) by day two of cultivation [1] - By day eight, beating heart cells were observed, which in real embryos will eventually develop into the heart [1] - On day thirteen, the team noted distinct red blood spots, confirming the generation of functional blood cells [1] Group 2 - The ability to produce human blood cells in the laboratory marks a significant step in regenerative medicine, allowing for the potential creation of blood cells that are genetically matched to patients, thus avoiding immune rejection [2] - The model captures the "second wave" of hematopoiesis during human development, which can produce adaptive lymphocytes, including T cells, opening new avenues for studying blood development in both healthy and cancerous states [2]
近乎零摩擦的石墨转子研制成功
Ke Ji Ri Bao· 2025-10-14 23:54
日本冲绳科学技术大学院大学科学家成功研制出一种近乎零摩擦的可自由悬浮旋转的石墨转子。这一成 果解决了长期困扰宏观悬浮系统的"涡流阻尼"问题,为高精度测量和量子研究开辟了新途径。相关论文 发表于新一期《通讯·物理》杂志。 最新设计在理想条件下彻底消除了涡流阻尼。团队表示,改进后的自由悬浮转子有望成为毫米级乃至微 米级高精度传感器核心部件,可用于高灵敏度陀螺仪,也可在低温下进入量子态,用于探索真空引力效 应等宏观量子现象。 (文章来源:科技日报) 与依赖复杂光学或电学系统的微尺度装置不同,宏观系统可在常温下实现磁悬浮,结构更简单、环境适 应性更强。然而,这类系统长期受涡流阻尼限制。导体在非均匀磁场中运动时会产生环状电流,形成抵 抗运动的磁场,类似"磁性摩擦",导致能量损耗和信号干扰。 此次,团队利用直径约1厘米的石墨圆盘和稀土磁体,设计出抗磁悬浮转子。通过实验和数学分析证 明,只要系统具备完美轴对称性,就能完全消除涡流阻尼。如果能进一步减缓旋转速度,转子运动将进 入量子态,为宏观量子研究提供新平台。 人们看到物体飘浮在空中会惊叹不已,而科学家则将这种"失重"状态视为隔绝外界干扰的一种理想方 式。对科学家而言,悬浮 ...
全球最大变压吸附制氢装置群投入运行
Ke Ji Ri Bao· 2025-10-14 09:49
Core Insights - The world's largest pressure swing adsorption hydrogen production facility group has been fully operational at Yulong Petrochemical, marking a significant breakthrough in China's high-pressure gas separation technology [1][2] - This facility group is a key component of Yulong Petrochemical's integrated refining and chemical project, supporting China's transition to a green and low-carbon economy and contributing to the national "dual carbon" goals [1] Group 1: Facility Details - The facility group consists of four sets of refinery gas pressure swing adsorption hydrogen production units, one high-pressure coal-to-hydrogen unit, and one high-pressure heavy oil-to-hydrogen unit [1] - The total designed hydrogen production capacity is 1.05 million standard cubic meters per hour, with an annual output of 750,000 tons of high-purity hydrogen at 99.9% purity [1] Group 2: Technological Innovations - Yulong Petrochemical's complex hydrogen-containing raw materials, exceeding ten types, and varying pressure conditions from 2.5 MPa to 6.0 MPa, required advanced technological solutions [2] - The Southwest Institute leveraged its technical advantages to develop high-performance adsorbents with large impurity adsorption capacity and high desorption efficiency, successfully addressing deep impurity removal challenges [2] Group 3: Strategic Implications - The successful operation of the hydrogen production facility group exemplifies China's commitment to energy security and enhances the self-sufficiency of hydrogen in the petrochemical industry [2] - This project serves as a model for the global chemical industry's green transformation, showcasing China's capabilities in innovative energy solutions [2]
江淮大地创新潮涌——跃升·“十四五”科技成就
Ke Ji Ri Bao· 2025-10-14 09:49
秋天的江淮大地,处处激荡着科技创新的澎湃动能。量子实验室里,中国首款千比特超导量子计算测控 系统成功交付;超级工厂内,机械臂精准舞动,一辆辆新能源汽车驶下生产线;显示面板车间中,全球 首条搭载无精密金属掩模版技术的第8.6代AMOLED生产线建设全力推进…… 近年来,安徽量子产业在战略科技力量培育、原创成果产出、产业生态构建等方面均取得瞩目成就,展 现出强大发展动力和广阔发展前景。 在量子计算领域,安徽取得了一系列重大突破。今年3月,由中国科学技术大学团队研发的量子计算原 型机"祖冲之三号"问世,刷新超导体系全球量子计算优越性新纪录。本源量子计算科技(合肥)股份有 限公司研制的第三代自主超导量子计算机"本源悟空"自2024年上线以来,刷新中国自主量子算力服务规 模纪录。 在量子通信方面,科大国盾量子技术股份有限公司主导建成了全国最大、覆盖最广、应用最多的量子保 密通信网络——"合肥量子城域网"。在量子精密测量领域,国仪量子技术(合肥)股份有限公司的量子 科仪谷项目,致力于打造科学仪器行业成果转化和产业化的集聚示范基地,提升我国量子精密测量与高 端科学仪器的产业发展水平。 合肥高新区云飞路,因集聚一批量子科技龙 ...
科学家提出设计下一代锂电池理论模型,可显著提升充放电速度和使用寿命
Ke Ji Ri Bao· 2025-10-14 09:49
团队采用一种精确的电化学技术,实际测得的嵌入速率远低于以往报道的数值。基于这些数据,团队提 出了新的耦合离子-电子转移理论。该理论指出,真正的电化学限速步骤并非锂离子的嵌入,而是电子 转移过程,即电极材料被还原以准备接收锂离子的过程。锂离子的嵌入与电子的转移相互促进,共同决 定了反应的整体速率,这为理解电池反应动力学提供了更精确的理论基础。 这一理论不仅解释了以往实验数据的巨大差异,还为设计更高性能的电池提供了明确指导。这种通过电 解质调控嵌入动力学的策略,仅用简单公式就提供了理论框架。人们不再依赖试错法,只需基于关键材 料参数进行有针对性的优化,就可推动充电速度更快、能量密度更高、副反应更少的下一代锂离子电池 的开发。(记者张梦然) 所有锂离子电池的核心都依赖于一个基本反应:在放电过程中,溶解于电解质中的锂离子会嵌入固体电 极材料中,而在充电时,这些离子则从电极中脱嵌,返回电解质中。这一嵌入与脱嵌过程在电池整个生 命周期内反复进行数千次,电池的能量输出和充电速度取决于该反应的速率。然而长期以来,科学界对 这一反应的具体机制及其速率控制因素的理解十分有限。 此次新模型表明,锂离子嵌入电极并非一个孤立的离子行为 ...
“每一位女性都是时代的女主角”——全球妇女峰会现场速写
Ke Ji Ri Bao· 2025-10-14 09:49
Core Insights - The Global Women's Summit in Beijing emphasizes the theme of "Shared Destiny: Accelerating the Comprehensive Development of Women" [1] - The summit highlights the role of technology innovation in empowering women's high-quality development [1] Group 1: Women's Contributions in Technology - Female technology workers in China number approximately 40 million, accounting for 45.8% of the total workforce in this sector [1] - Women in technology are making significant achievements, with a call for female professors to lead in accelerating women's comprehensive development [2] - The internet and artificial intelligence are seen as key areas for women's growth and empowerment [2] Group 2: Empowerment through Digital Skills - Kuaishou Technology is actively training rural women in digital skills, enabling them to start businesses and improve their livelihoods [2][3] - The company plans to enhance its investment in empowering rural women through optimized training systems and support mechanisms [3] - Success stories, such as a rural woman selling local products through live streaming, illustrate the potential of digital skills in driving rural revitalization [2][3] Group 3: Inspirational Female Leaders - Female leaders in various fields are encouraged to inspire and mentor younger generations, promoting courage and wisdom [3] - The importance of nurturing female talent in scientific research is emphasized, with a focus on the unique strengths women bring to the field [3]
“国产慧眼”透视万米深地
Ke Ji Ri Bao· 2025-10-14 09:49
在核心的耐高温抗腐蚀密封材料领域,科研团队融合材料学、结构力学等多学科知识,成功研发出基于 不结晶全氟化学、陶瓷分子材料和有机高分子材料的新一代密封材料,其耐温耐压及抗腐蚀性能达到国 际顶尖水平。在关键的承压保温瓶制造中,团队从材料源头和连接工艺入手,创新开发出超高温钛合金 焊接工艺,显著提升了承压部件的可靠性和寿命。 "国产慧眼"透视万米深地 "大家请听,这段声音是根据9000米至14000米地层的声波采集波形,按照人耳能听到的频率匹配合成的 音频。这是我国首次揭开地球五亿多年前的神秘面纱。"近日,在中国石油集团测井有限公司(以下简 称"中油测井")测井展厅,讲解员为参观人员介绍道。 今年2月份,我国首口超万米科探井——深地塔科1井以10910米完钻,刷新了多项世界纪录。中油测井 自主研发的CPLog超高温高压系列测井装备成功应用于该井,填补了万米领域国产高端测井装备的空 白。 探索万米以下"新战场" 随着我国油气勘探向地球深部不断挺进,万米以下地层成为保障国家能源安全的新战场。但超深层的极 端环境,让万米测井如探月般艰难。此前,能在这种极端条件下稳定工作的测井装备长期被国外油服巨 头垄断,核心技术被严格封 ...
仿人臂微生物智能检测机器人发布
Ke Ji Ri Bao· 2025-10-14 09:49
Core Insights - The launch of the "humanoid arm microbial intelligent detection robot" by Dalian Inspection and Testing Certification Group Co., Ltd. marks a significant advancement in the automation and intelligence of food safety testing [1][2] - The robot addresses key pain points in microbial detection within the food sector, enhancing efficiency and accuracy while reducing human error and contamination risks [1][2] Company Insights - Dalian Inspection and Testing Certification Group has introduced a robot that automates the entire microbial detection process, achieving a processing time of 20 minutes per sample and increasing efficiency by 2 to 3 times compared to manual methods [1] - The system can conduct tests for total bacterial count and E. coli simultaneously, with a throughput of 17 tests per hour for each parameter, thus overcoming traditional manual testing limitations [1] - The company is already working on a second-generation product that will incorporate advanced technologies such as AI models and humanoid robotics, aiming for a more intelligent and standardized detection process [2] Industry Insights - The inspection and testing industry is a crucial part of the national quality infrastructure, with a current need for improved automation, particularly in microbial testing, where many institutions still rely on manual processes [2] - The introduction of the intelligent detection robot not only enhances the company's capabilities but also contributes to the establishment of national-level smart testing laboratories, promoting overall industry development towards higher quality standards [2]
全球可持续交通燃料认证体系启动试运行
Ke Ji Ri Bao· 2025-10-14 09:49
记者获悉,由中国能源建设集团有限公司(以下简称"中国能建")与中国国际交通创新和知识中心等联 合发起的"全球可持续交通认证体系"(GSTC)日前在北京启动可持续交通燃料认证试运行工作。首批 纳入认证体系的试运行项目为中能建氢能公司吉林松原项目(绿氨)和中华煤气内蒙古易高项目(绿甲 醇)。 建立中国发起的国际性可持续燃料认证体系,是我国积极参与气候变化全球治理的重要举措,有利于衔 接IMO相关法规及我国的实际情况,能够有效发挥我国可持续燃料产业发展优势,进一步降低产业成 本,将为我国打造国际性可持续燃料供应中心、加注中心、交易中心、定价中心提供有力支撑,并将成 为推动我国交通和能源融合发展的重要驱动引擎。 据介绍,中国能建充分发挥旗下中电工程、氢能公司等核心单位可持续燃料项目投建营、工艺系统集 成、碳足迹核算等方面的独特优势,为"1+9+5+N"认证体系文件编制、大数据平台开发和试运行提供了 重要支撑。与此同时,中国能建在可持续燃料领域开展了系列创新实践,在内蒙古、黑龙江、吉林、辽 宁等地规划投资建设多个可持续燃料生产基地,并重点攻关生物质气化、系统动态匹配等可持续燃料制 备的关键技术装备,合力打通"制储输加用 ...
这一突破性成果刷新全球纪录
Ke Ji Ri Bao· 2025-10-14 09:49
大连理工大学"一种轴压筒壳结构承载力折减因子确定方法"项目获得本届中国专利金奖。同方威视"一 种行李物品CT安检系统及其探测器装置"发明专利,其诞生源于对行业痛点的深刻洞察与颠覆性创新。 在大会的第二十五届中国专利金奖展区,集中展示了30项中国专利金奖与10项外观设计金奖的璀璨成 果。展台上陈列着部分专利金奖的实物精品,每一件都凝聚着创新智慧,彰显着中国专利为知识产权强 国建设注入的强劲动力。(记者张蕴) 腾讯云数据库TDSQL凭借核心专利"数据库事务处理方法、装置及服务器",获得第二十五届中国专利 金奖,标志着数据库技术首次摘得中国知识产权领域最高荣誉。这一突破性成果不仅刷新了全球事务处 理与决策支持性能纪录,也已在大型金融机构,以及医保、交通、人口普查等重大民生工程中规模应 用。记者了解到,目前,腾讯云数据库TDSQL在辽宁省医保服务平台、辽宁农信、大连银行等都已投 产使用。与此同时,腾讯云构建起覆盖数据库TDSQL、操作系统TencentOS、专有云TCE、PaaS平台 TCS、大数据TBDS与腾讯云TI平台的全栈基础软件"6T"体系,全面适配国产软硬件生态。 记者从第二十五届专利奖颁奖现场获悉,"用于 ...