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南北粮运大动脉焕然一新
Ke Ji Ri Bao· 2025-10-15 23:45
Core Insights - The article highlights the transformation of traditional grain logistics in China through technological advancements, particularly in the context of the North-South grain transportation challenge [1][2][3] Group 1: Technological Advancements in Grain Logistics - The Guangzhou Nansha Port has implemented a fully automated control system that enhances overall port efficiency by 20% and enables real-time coordination with rail and road transport [1] - The introduction of high-capacity logistics equipment, such as the 2000 tons/hour grain discharge capability at the shallow round warehouse, marks a significant milestone in the modernization of grain logistics [3] - The development of a domestic high-capacity chain conveyor system aims to improve the efficiency of grain transportation, allowing for a significant increase in grain discharge efficiency to 300 tons per hour [4] Group 2: Multi-Modal Transportation System - The North-South grain transportation route spans 3,500 kilometers, requiring multiple transfers that can lead to grain loss and inefficiencies [2] - A well-coordinated multi-modal transportation system is essential for optimizing costs, efficiency, and environmental impact in grain logistics [3] - The integration of various transportation modes, including rail, sea, and road, is likened to conducting a symphony, emphasizing the need for seamless collaboration among different transport methods [3] Group 3: Infrastructure and Storage Innovations - Innovations in storage technology, such as the "six-sided active temperature control" and intelligent three-dimensional storage systems, contribute to more precise and efficient grain storage [4] - The shift from passive allocation to proactive configuration and fine management in grain circulation is supported by infrastructure upgrades and information technology [4] - The annual transfer capacity at the unloading terminal can reach nearly 16 million tons, sufficient to meet the grain supply needs of a large city [3]
青海盐湖股份4万吨/年基础锂盐一体化项目投产
Ke Ji Ri Bao· 2025-10-15 23:30
Core Viewpoint - Qinghai Salt Lake Industry Co., Ltd. has launched a 40,000 tons/year integrated lithium salt project, enhancing lithium resource extraction efficiency and quality, while strengthening China's self-supply capability in lithium resources [1] Group 1: Project Overview - The new project utilizes old brine from potassium fertilizer production as raw material, employing advanced "continuous ion exchange moving bed + membrane coupling" integrated technology [1] - The project has achieved a 25.63% increase in comprehensive yield across three lithium workshops, reaching 82.4%, thus optimizing lithium extraction efficiency and resource utilization [1] Group 2: Industry Impact - The project is expected to solidify Qinghai Salt Lake's leading position in the lithium industry, which is crucial for energy transition and achieving carbon neutrality goals [1] - The design and construction of the project align with industry standards, focusing on high-end, green, and intelligent development, leveraging "5G+" technology to promote green electricity projects [1]
新型自然杀伤细胞既抗癌又能“自保”
Ke Ji Ri Bao· 2025-10-15 23:27
在针对淋巴瘤的实验中,经过改造的CAR-NK细胞几乎完全清除了肿瘤。相比之下,未经改造或仅携带 CAR基因的NK细胞则被宿主免疫系统快速清除,无法控制癌症进展。而且,新型CAR-NK细胞引发细 胞因子释放综合征的风险较低。 美国麻省理工学院与哈佛大学科学家携手,设计出一种新型嵌合抗原受体-自然杀伤(CAR-NK)细 胞。这种细胞不仅能精准摧毁癌细胞,还能巧妙"隐身自保"以躲避人体免疫系统的防御攻击。这一突破 有望解决长期困扰细胞疗法的免疫排斥问题,提升治疗效果。相关论文发表于新一期《自然·通讯》杂 志。 团队预测,CAR-NK细胞未来或有望逐步替代CAR-T细胞。目前针对其他癌症开发的CAR-NK疗法,也 可借鉴此研究中的基因构建策略进行优化。 (文章来源:科技日报) 自然杀伤(NK)细胞是人体免疫防御的重要成员,负责识别并清除癌细胞和受病毒感染的细胞。目 前,CAR-NK疗法通常需从患者体内提取NK细胞,经基因工程改造,使其表达能识别癌细胞特异性标 志物的嵌合抗原受体(CAR),再经数周体外扩增,才能回输至患者体内。科学家也在探索从健康供 体中获取NK细胞,但难题在于:受体免疫系统通常会将外来供体细胞视为" ...
“刚柔并济”人造肌肉举起四千倍自重物体
Ke Ji Ri Bao· 2025-10-15 23:26
(文章来源:科技日报) 这种"可变刚度"人造肌肉采用双重交联聚合物网络结构。其中,化学键(共价键)赋予材料结构强度, 通过热刺激形成或断裂物理键,使材料能在不同条件下改变刚度。实验显示,这种仅重1.25克的微型人 造肌肉,在刚性状态下可举起5千克重物,相当于约4000倍的自身重量。而在柔性状态下,伸展率可达 原始长度的12倍。在收缩过程中,其应变率达到86.4%,超过人类肌肉(约40%)的两倍。同时,其单 位体积功率密度高达1150千焦/立方米,是人类肌肉的30倍。 团队还在这种材料中加入了经表面处理的磁性微粒,使其能在外部磁场控制下实现精确运动。团队表 示,这种复合材料兼具"柔软"与"强硬"两种特性,为研制更灵活的软体机器人、可穿戴设备以及直观的 人机交互系统打开了新大门。 韩国蔚山科学技术院研究团队研发出一种可在"柔软灵活"和"坚硬有力"状态之间自由切换的新型人造肌 肉。这种创新型肌肉可举起相当于自身重量四千倍的物体,其能量输出远超人类肌肉。这一成果有望推 动软体机器人、可穿戴设备和医疗辅助技术的发展。相关论文发表于新一期《先进功能材料》杂志。 ...
激光绘晶新技术让材料“按需”生长
Ke Ji Ri Bao· 2025-10-15 23:26
美国密歇根州立大学团队开发了一种"绘制"晶体的新方法。这种全新的激光绘晶技术,可在指定时间和 位置"按需"生成晶体,为太阳能电池、LED照明及医学成像等领域提供更精准的材料制造手段。这一突 破性成果发表于最新一期美国化学会《ACS纳米》杂志。 与以往复杂的晶体生长步骤不同,团队没有使用种子晶体作为晶体生长模板,而是将激光瞄准一个微小 而闪亮的目标,即直径不到人类头发千分之一的金纳米颗粒。当单束激光脉冲照射金纳米颗粒表面时, 会产生瞬时加热,这种相互作用诱导了晶体的生长。利用高速显微技术,他们甚至能够实时观察这一过 程的发生。 激光绘晶方法类似于用激光在金属或木材上雕刻图案,不仅能提升晶体制造的可控性,也为能源、电子 和量子技术等领域提供了新的研究手段。同时,也帮助化学家进一步理解晶体形成这一长期难解的过 程。 晶体几乎无处不在,从电视屏幕、烟雾报警器到超声波设备和声呐系统,它们独特的光学和电学特性支 撑着现代科技的发展。但在传统的生长方法中,晶体往往在随机时间和位置生成,难以保证质量与一致 性,这一不确定性长期制约着高性能器件的制造。 通过这种方法,团队可以让晶体在精确的时间和位置生长。他们能坐在显微镜前亲眼 ...
国际团队发布重磅报告称:世界达到第一个气候临界点
Ke Ji Ri Bao· 2025-10-15 23:24
Core Insights - The world has reached its first climate tipping point, with global warming surpassing the critical threshold of 1.5°C, leading to significant threats to key ecological systems [1][2] - The report highlights the irreversible damage to warm-water coral reefs, which are crucial for the livelihoods of nearly 1 billion people and support a quarter of marine biodiversity [1][2] Group 1: Climate Tipping Points - The current global temperature has risen approximately 1.4°C, with warm-water coral reefs having a thermal tipping point estimated at 1.2°C, indicating they have crossed an irreversible threshold [1] - Other critical systems are on the brink, including the irreversible melting of Greenland and Antarctic ice sheets, which will lead to long-term sea-level rise [2] - The Amazon rainforest may begin to experience widespread die-off at a temperature increase of 1.5°C, affecting over 100 million people who rely on its resources [2] Group 2: Urgent Action Required - The report emphasizes the need for unprecedented urgent action to avoid the most severe consequences of climate change, with every degree of warming increasing the risk of triggering more tipping points [2] - Accelerated emissions reductions and expanded sustainable carbon removal efforts are essential for rapid cooling [2] Group 3: Positive Transformations - The report suggests a hopeful pathway through the activation of "positive tipping points" that can drive self-reinforcing transformations in social and technological systems [2] - The proliferation of green technologies such as solar energy, wind energy, electric vehicles, and battery storage shows promising signs of change [2] Group 4: Societal Attitudes and Political Will - Public concern about the climate crisis is rising, and actions by early adopters can lead to broader behavioral changes [3] - The need for political courage is highlighted, with calls for inclusive and equitable transformations that benefit all [3]
国产EDA到底带来怎样的惊喜?
Ke Ji Ri Bao· 2025-10-15 23:23
Core Insights - The launch of two domestically developed EDA design software by Qiyunfang, a subsidiary of Xinkailai, marks a significant advancement in China's high-end electronic design software capabilities, filling a long-standing technological gap in the industry [1][3] Group 1: Importance of EDA - EDA is considered the "mother of chips," serving as a core toolchain for chip design that spans the entire process of integrated circuit design, manufacturing, and testing [1] - EDA tools are essential for converting abstract circuits into producible chip layouts, significantly enhancing design efficiency and supporting complex systems and advanced processes [1][2] Group 2: Domestic Software Level - The global EDA market has been dominated by three international firms: Synopsys, Cadence, and Siemens EDA, which collectively hold over 70% market share in China [3] - The domestic industry has been constrained by reliance on foreign EDA tools, but Qiyunfang's new software aims to fully replace these foreign products [3] - The development of EDA software faces challenges due to technical barriers, ecological challenges, and talent shortages, requiring breakthroughs in algorithms, ecosystems, and talent [3] Group 3: Highlights of Domestic EDA Software - Qiyunfang's EDA software utilizes a parallel operation model, allowing better design collaboration among hardware engineers, with schematic design software supporting 100 concurrent users and PCB design software supporting 20 [4] - The performance of the two new EDA products has improved by 30% compared to industry benchmarks, with the collaborative design model reducing hardware development cycles by 40% and increasing the success rate of intelligent design by 30% [4] - The software is compatible with various domestic operating systems, databases, and middleware, facilitating integration with numerous ecological software platforms [4]
全球首款亚埃米级快照光谱成像芯片“玉衡”问世
Ke Ji Ri Bao· 2025-10-15 23:22
Core Insights - Tsinghua University's Professor Fang Lu's team has developed the world's first sub-angstrom snapshot spectral imaging chip named "Yuheng," marking a significant advancement in intelligent photonics technology for high-precision imaging and measurement [1][2]. Group 1: Technological Breakthrough - The "Yuheng" chip addresses long-standing challenges in spectral imaging systems, specifically resolution, efficiency, and integration [2]. - The chip measures approximately 2 cm x 2 cm x 0.5 cm and operates within a wide spectral range of 400 to 1000 nanometers, achieving sub-angstrom spectral resolution and tens of millions of pixels in spatial resolution [1]. Group 2: Applications and Impact - The chip can be widely applied in fields such as machine intelligence, airborne remote sensing, and astronomical observation [2]. - For astronomical observations, the "Yuheng" chip can capture the complete spectrum of nearly 10,000 stars per second, potentially reducing the survey period for the Milky Way's 100 billion stars from thousands of years to under ten years [2].
新型储能:技术多元并进 规模世界第一
Ke Ji Ri Bao· 2025-10-15 23:20
"目前,新型储能应用效果逐步显现,2024年全年新型储能调用情况相较2023年大幅提升,浙江、江 苏、重庆、新疆等多地年均等效利用小时数达到1000小时以上,成为促进新能源开发消纳的重要手段。 迎峰度夏期间,新型储能充分发挥'超级充电宝'功效,为顶峰时段电力保供贡献了关键力量。"国家能 源局能源节约和科技装备司副司长边广琦说。 多类型技术路线加快落地 "十四五"期间,我国新型储能技术创新和产业发展不断突破,成为构建新型电力系统的重要支撑。国家 能源局数据显示,截至2024年底,全国新型储能装机达7376万千瓦,占全球总装机40%以上,约为"十 三五"末的20倍。我国新型储能规模已跃居世界第一。 新型储能应用效果逐步显现 新型储能是指除抽水蓄能外,以输出电力为主要形式并对外提供服务的储能技术,包括电化学储能、压 缩空气储能、重力储能等。它如同电力系统的"超级充电宝",通过在谷时充电、峰时放电,有效提升新 能源消纳能力,保障电网安全稳定运行。 "新型储能是构建新型电力系统的重要技术和基础装备,是实现碳达峰碳中和目标的重要支撑,也是催 生国内能源新业态、抢占国际战略新高地的重要领域。"中国科学院理化技术研究所研究员 ...
技术创新支持光伏电站历经台风考验 实现绿色收益与安全统一
Ke Ji Ri Bao· 2025-10-15 14:17
今年20天内连续4个台风登陆广东,尤其超强台风"桦加沙"更是带来严重影响。记者从隆基绿能获悉,一 批由隆基绿能与森特股份联手打造的建筑光伏一体化项目经受住了"桦加沙"等考验,"安然无恙"。 科技日报记者 李禾 据介绍,台风"桦加沙"过境后,深圳宝安国际机场B2货代区的建筑光伏一体化系统,在抗台风的同时耐受 货运车流震动,其"成为屋顶本身"的设计杜绝大风掀翻屋顶的风险;深圳东部环保电厂顶住特大暴雨,实 现关键节点滴水不漏;台山迪生力汽轮智造的光伏系统,历经大风仍坚固地贴合屋顶,全程保障关键设备 供电零中断,避免精密部件因停产报废等。 作为城市名片,深圳国际会展中心需要同时应对台风、保障展会供电、兼顾建筑美观。专为其定制彩色组 件既与会展风格完美融合,又在台风中实现"零损坏、不停电",印证了建筑光伏一体化在重大地标场景的 适配性。 (受访者供图)责任编辑:李梦一 隆基绿能有关负责人表示,技术是抗风防水"零损伤"的关键。其中,所采用的柔性连接技术,可灵活应对 强风带来的应力冲击。在防水方面,无缝屋面板与导水流技术,杜绝渗漏隐患。而一款建筑友好型的光伏 屋面系统,其抗风能力较传统光伏方案提升23%。 除技术外,这些项 ...