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全国最大规模高速公路充电站投运
Ke Ji Ri Bao· 2025-08-26 03:37
Core Insights - The G25 Changshen Expressway Taolu Service Area (South) has launched the largest highway charging station in China, featuring 108 high-power fast charging piles, including 40 supercharging piles with a maximum power of 600 kW, enabling a charging speed close to "one second per kilometer" [1][2] Group 1: Infrastructure Development - The charging station at Taolu Service Area (South) is part of an expansion project initiated to enhance the highway charging infrastructure network due to increasing traffic flow on expressways [1] - The expansion includes an additional building area of approximately 30,000 square meters for the North Area and 2,700 square meters for the South Area, increasing parking spaces to about 505 and 474 respectively, with 108 charging spaces in both areas [1] Group 2: Technological Integration - The charging station utilizes photovoltaic power generation, tiered energy storage, liquid cooling supercharging, and direct current fast charging technologies, managed by an intelligent management system for unified control [2] - The service area features a total installed capacity of 2,260 kW of photovoltaic panels, achieving 100% local clean energy production, and a 430 kWh energy storage station to stabilize grid fluctuations [2] - These technologies are expected to significantly enhance energy utilization efficiency, with an estimated annual green electricity replacement of 5.12 million kWh and a reduction in carbon emissions by approximately 2,860 tons [2]
“华龙一号”批量化建设取得新进展
Ke Ji Ri Bao· 2025-08-26 03:28
Core Viewpoint - The construction of the nuclear island for the Zhejiang Jin Qimen Nuclear Power Unit 1, utilizing the "Hualong One" model, has officially commenced, marking a significant advancement in the batch construction of this technology [1] Group 1: Project Overview - The Jin Qimen Nuclear Power Project is located in Xiangshan County, Ningbo City, Zhejiang Province, and plans to build six million-kilowatt-level pressurized water reactor nuclear power units [1] - Units 1 and 2 received approval from the State Council on December 29, 2023, and each unit has a rated capacity of 1.2 million kilowatts with a designed operational lifespan of 60 years [1] - Once fully operational, the project will have a total installed capacity of approximately 7.2 million kilowatts, with an expected annual electricity generation of 55 billion kilowatt-hours, which is equivalent to half of Ningbo's total electricity consumption in 2024 [1] Group 2: Technology and Significance - "Hualong One" is a domestically developed third-generation nuclear power brand with complete independent intellectual property rights, serving as a "national business card" for China's nuclear energy on the global stage [1] - This year marks the 10th anniversary of the commencement of construction for the first "Hualong One" unit globally, reflecting steady progress in its batch construction over the past decade [1] - "Hualong One" has become the most widely approved and under-construction third-generation nuclear power technology worldwide, continuously demonstrating the advanced and reliable nature of Chinese nuclear power technology [1]
川气东送二线首段顺利投产
Ke Ji Ri Bao· 2025-08-26 03:01
Core Points - The "Chuanqi Dongsong Phase II" natural gas pipeline project has successfully commenced gas transmission, adding nearly 3 billion cubic meters of natural gas annually, marking a significant acceleration in a major national energy infrastructure initiative [1] - The pipeline, which spans approximately 4,269 kilometers and passes through eight provinces, is a crucial part of China's energy strategy, enhancing energy structure optimization and regional economic development [1] - Once fully operational, the pipeline will have an annual gas transmission capacity of 20 billion cubic meters, facilitating interconnection with major national pipeline networks and addressing resource peak demand in central and eastern regions [1] Industry Insights - The AnYue gas field's gas can now be integrated into the national network via the Tongliang compression station, providing a new channel for gas export from the Sichuan-Chongqing region and supporting the rapid development of a 100 billion cubic meter gas production base [2] - The Sichuan Basin is a key area for natural gas production in China, with proven geological reserves of nearly 3 trillion cubic meters, and the pipeline plays a vital role in exporting gas resources from this region [2] - The National Pipeline Group is focused on enhancing the interconnectivity of southwest trunk pipelines, thereby improving gas source allocation and supporting the overall energy supply chain [2]
跨经营区交易激活全国电力市场
Ke Ji Ri Bao· 2025-08-26 02:34
此前,区域间电力互济多依赖应急调度,以"一线一议""一事一议"方式推进,不仅频次低、规模小,灵 活性也大打折扣,阻碍了电力资源在全国范围内的优化配置。随着新型电力系统建设推进,高比例新能 源接入,电网运行随机性、波动性增加,通过大电网实现富余新能源消纳、保障电力安全稳定供应的需 求愈发迫切。 多位受访专家在接受科技日报记者采访时分析,实现跨电网经营区常态化交易,是建设全国统一电力市 场的标志性举措,对打破市场分割和地区封锁、在全国范围内优化电力资源配置具有重要意义。 促进省际供需互补 长期以来,我国电网呈现国家电网与南方电网分区域经营的格局。国家电网覆盖26个省(自治区、直辖 市),供电范围占国土面积88%;南方电网则覆盖广东、广西、云南、贵州、海南五省区,并与港澳以 及东南亚电网相连。在这两大电网公司内部,每个省级电网公司管理的区域就是一个经营区。这一格局 在特定历史时期保障了电网稳健发展,但也形成了一定的市场壁垒。 今年夏季,我国电力市场迎来重要变革。7月1日至9月15日,超过20亿千瓦时电能将从云南、广西、广 东,经闽粤联网工程持续输往上海、浙江、安徽、福建四地。 这一规模空前的跨区域电力调配,标志着国 ...
埃塞俄比亚重大发现挑战人类起源假设 牙齿化石改写“从猿到人”线性叙事
Ke Ji Ri Bao· 2025-08-26 02:06
人类进化的故事,并不是一条简单的"阶梯"。几十年来,化石曾勾勒出一种稳定、线性的进程,即 从一种形态平稳地演变为另一种形态,仿佛一个整齐的序列。 然而,新证据正在改写这一叙事。埃塞俄比亚的重大发现正在挑战长期以来的假设,表明人类起源"没 那么简单"。 南方古猿是人类的"邻居" 据《自然》杂志最新发表的论文,美国内华达大学拉斯维加斯分校团队发现,距今260万至280万年前, 南方古猿与早期"人属"在同一地区曾经共存。这一发现挑战了传统观点,暗示人类进化并非"从猿到 人"的单一路径模型,而是像一棵枝叶繁茂的进化树,分出了多个并行的谱系。 过去,科学家一直认为人属是在南方古猿之后才出现,两者并不重叠,而新发现显示情况并非如此。 南方古猿大约生活在300万年前。它们既有适合攀爬的长臂,也具备适应步行的骨盆与双腿。以"露 西"为代表的南方古猿阿法种的化石表明,它们体型矮小、脑容量有限,既能在地面行走,也能灵活地 爬树。 此次在莱迪—杰拉鲁遗址出土的13颗牙齿,至少代表了两个不同谱系:一个是南方古猿属,与"露西"属 于同一谱系;另一个是人属,包括现代人类。这些标本提示,在约250万年前,南方古猿和早期人属作 为两个独立谱 ...
“仿生创可贴”有望治疗糖尿病足溃疡
Ke Ji Ri Bao· 2025-08-26 01:12
在研发过程中,研究团队通过动态硼酸酯键技术,将绿茶中的茶多酚EGCG"锚定"在凝胶中,制备 出兼具抗菌、抗氧化、抗炎以及促进组织再生的多重功能凝胶贴片。 记者8月22日从中国科学院昆明植物研究所获悉,研究员吴明一带领团队开发出一种源自蜗牛黏液 的新型仿细胞外基质结构凝胶贴片,通过"抗菌—抗炎—促再生"三重机制,为糖尿病足溃疡治疗提供了 全新方案。这项研究发表于国际期刊《碳水化合物聚合物》上。 糖尿病足溃疡,是糖尿病最严重的慢性并发症之一,其主要表现为患者足部组织的感染、破溃、变 性坏死等。全球约4000万至6000万人受其困扰,患者年死亡率达22%。 吴明一团队发现,蜗牛爬行时分泌的黏液具有惊人的修复能力。通过成分分析,研究团队发现黏液 中的核心活性物质是一种特殊的糖胺聚糖AFG,其结构与人体细胞外基质中的糖胺聚糖高度相似。 "细胞外基质就像细胞的摇篮,调控细胞的增殖、迁移等生命活动。"论文第一作者邓拓博士说。受 此启发,研究团队将蜗牛黏液中的糖胺聚糖AFG与明胶通过共价键交联,构建出类似人体细胞外基质的 三维凝胶网络。 当伤口局部血糖浓度升高时,凝胶贴片中的硼酸酯键会断裂并释放茶多酚EGCG;当伤口处血糖趋 ...
新疗法让细菌和病毒协同抗癌
Ke Ji Ri Bao· 2025-08-26 01:12
研究人员利用细菌与病毒组成抗癌联盟,突破免疫防御,精准靶向并安全摧毁癌细胞。图片来源:美国 《每日科学》网站 最新进展标志着该细菌-病毒联合系统向未来临床应用迈出了重要一步。研究团队正在更多类型的 肿瘤、小鼠模型、病毒及有效载荷中测试该方法的可行性,致力于开发一套能感知并响应细胞内特定条 件的病毒疗法工具包。他们还在探索将该系统与已在临床试验中证明安全的细菌菌株相结合的可能性。 研究团队表示,这一技术已在小鼠实验中验证有效,是首个实现细菌与抗癌病毒直接工程化合作的 范例,为开发多生物联合疗法奠定了基础。这类疗法有望实现单一微生物无法达成的治疗效果。 溶瘤病毒疗法是一种利用天然或经基因改造的病毒,特异性感染并摧毁癌细胞的治疗策略,尤其在 脑肿瘤领域显示出很强的潜力。然而,该疗法面临的一大挑战是人体自身的免疫防御机制。如果患者因 既往感染或疫苗接种已对病毒产生抗体,这些抗体就可能在病毒抵达肿瘤前将其清除。 研究团队通过把病毒"藏"进擅长追踪肿瘤的细菌中,成功规避了这一障碍。实验证明,细菌(部分 为鼠伤寒沙门氏菌)可用于投放溶瘤病毒,治疗那些对病毒已具备免疫能力的实体瘤。 美国哥伦比亚大学和洛克菲勒大学科学家利用细 ...
血管衰老与心肌纤维化机制揭示
Ke Ji Ri Bao· 2025-08-26 01:12
随着人们年龄的增长,动脉硬化、心肌纤维化、心力衰竭等相关疾病往往"组团"来袭,危害心血管 健康。近期,中国工程院院士、哈尔滨医科大学药理学教授杨宝峰及其团队连续在国际心血管医学领域 期刊《欧洲心脏杂志》上发表一系列研究成果,这些研究从RNA表观遗传调控和RNA剪接两大前沿微 观领域入手,深刻揭示了血管衰老与心脏纤维化的复杂机制,为疑难心血管疾病的治疗奠定了理论基 础。 锁定血管衰老关键分子 在这些研究中,杨宝峰团队将目标锁定在关键RNA调控分子METTL14上。研究团队借助腺相关病 毒(AAV)载体技术和最新基因敲除技术,特异性降低了老年小鼠血管内皮细胞中METTL14的表达 后,观察到小鼠的血管功能显著改善,血管弹性得以恢复,显现出抗衰老效应。通过进一步研究,团队 发现,在血管衰老过程中,内皮细胞中METTL14的表达升高会使免疫识别受体TLR4 mRNA的特定位置 被修饰,这一修饰可引发持续的慢性低度炎症反应。这种炎症状态最终加快了血管内皮细胞衰老进程, 造成血管硬化和舒张功能异常。 研究团队发现,在心力衰竭的患者及小鼠的心脏中,RBMS1含量明显增多。通过药物抑制或基因 敲除降低RBMS1含量,可有效减 ...
吉林省长春市芯光产业园:建成新兴产业集聚区
Ke Ji Ri Bao· 2025-08-26 00:56
Core Viewpoint - Changchun University of Science and Technology collaborates with Changchun Jingyue High-tech Zone to establish the "Changchun Chip and Optoelectronics Industry Park," aiming to integrate Jilin Province's scientific and educational resources with high-quality innovation resources to promote the innovation resource integration of emerging industries, industrial ecosystem aggregation, technology achievement transformation, innovation and entrepreneurship talent cultivation, and open collaborative development [1] Group 1 - The park has attracted enterprises and project teams in fields such as spectral chips, semiconductor lasers, precision medicine, and optoelectronic medical equipment [1] - The park includes a digital technology enterprise accelerator, a public technology service platform cluster, and specialized incubators in the optoelectronic field [1] - Currently, there are 69 enterprises in the park, including 21 high-tech enterprises, 16 specialized and innovative enterprises, 1 seed unicorn enterprise, 2 fledgling enterprises, and 4 gazelle enterprises [1] Group 2 - The projected operating income of the park's enterprises for 2024 is 527 million yuan [1] - In the future, the Changchun Chip and Optoelectronics Industry Park will continue to strengthen its aggregation effect and enhance communication and cooperation with advanced domestic parks [1] - The goal is to build a high ground for intelligent perception technology and an industrial aggregation area [1]
新窑变光伏项目通过验收
Ke Ji Ri Bao· 2025-08-26 00:56
科技日报讯 (记者张蕴 通讯员赵睿)8月21日,记者从辽宁港口集团有限公司(以下简称"辽港集团") 获悉,位于大连港大窑湾港区汽车码头的新窑变4053千瓦屋顶分布式光伏发电项目(以下简称"新窑变 光伏项目")日前顺利通过验收。 新窑变光伏项目由中国航空工业集团有限公司旗下公司投资,利用大连汽车码头有限公司(以下简 称"大连汽车码头公司")车库屋顶资源,采用"自发自用、余电上网"模式。项目今年3月开工,6月实现 并网发电,运营期内,预计每年可供应约560万千瓦时绿电,节约标准煤1380吨,减少烟尘排放120千 克、二氧化硫排放553千克、氮氧化物排放832千克、二氧化碳排放4536吨,环境效益显著。 大连汽车码头公司工程部相关负责人李欣刚介绍,在项目建设过程中,公司全力配合光伏设备的安装与 调试工作,科学调配生产作业时间以保障光伏组件安装,并安排专业人员全程保障施工安全。 ...