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。 ...

这一分子成功实现了多电荷分离与储存这一核心功能。团队成员表示，他们已经识别并实现了整个拼图 中的一个重要部分。 这项研究深化了人们对人工光合作用中电子转移机制的理解，也为未来设计更高效、更接近自然系统的 太阳能燃料转化技术奠定了基础。其成果能为可持续能源的发展开辟新路径，推动人类向绿色、碳中和 的能源目标迈进。（记者张梦然） 一种具有特殊结构的分子，是此次实现人工光合作用的关键一步。该分子由5个功能单元串联组成，每 一部分承担特定任务。分子的一端包含两个可释放电子的单元，在失去电子后带正电；另一端有两个可 接收电子的单元，获得电子后带负电；中间则是吸收光能、启动电子转移反应的核心结构。 团队采用两步光照的方法实现四电荷的存储：第一道闪光激发分子，触发电子转移，产生一对正负电 荷，并分别迁移到分子两端；随后第二道闪光再次引发相同反应，使分子最终携带两个正电荷和两个负 电荷。这种分步激发机制使得该过程可以在较弱的光照条件下进行，接近自然阳光的强度，而此前类似 研究往往依赖高强度激光，难以应用于实际环境。 更重要的是，这些分离的电荷在分子中能够保持相对稳定状态，持续足够长时间，以便参与后续的化学 反应，例如将水分解 ...

Core Insights - The Parker Solar Probe has achieved the first direct observation of magnetic reconnection in the solar atmosphere, confirming a theory proposed 70 years ago, which enhances the ability to predict solar storms [1][2] - Magnetic reconnection is a process where magnetic field lines break and reconnect, releasing significant magnetic energy, which can lead to solar flares and coronal mass ejections [1] - The successful observation was made possible by the Parker Solar Probe's close approach to the Sun and collaboration with the European Space Agency's solar orbiter [1][2] Group 1 - The Parker Solar Probe, launched in 2018, is the only spacecraft capable of entering the solar upper atmosphere for direct measurements [1] - The probe captured a significant solar eruption on September 6, 2022, allowing for high-resolution imaging and sampling of plasma and magnetic field characteristics [1] - This breakthrough enables scientists to better understand the mechanisms of solar energy transfer and particle acceleration, improving the accuracy of solar activity predictions [2]

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]

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]

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]

Core Viewpoint - The establishment of a normalized cross-grid electricity trading mechanism in China marks a significant step towards a unified national electricity market, facilitating the optimization of electricity resource allocation across regions [1][2][4]. Group 1: Cross-Grid Electricity Trading Mechanism - From July 1 to September 15, over 2 billion kilowatt-hours of electricity will be transmitted from Yunnan, Guangxi, and Guangdong to Shanghai, Zhejiang, Anhui, and Fujian, indicating the normalization of cross-regional electricity trading [1]. - The National Development and Reform Commission and the National Energy Administration have approved the "Cross-Grid Normalized Electricity Trading Mechanism Plan," aiming for better electricity supply support during peak summer periods by 2025 [1][2]. - The new mechanism transforms electricity trading from temporary arrangements to regular market transactions, enhancing flexibility and efficiency in electricity supply and demand [2][3]. Group 2: Resource Optimization and Demand Complementarity - The historical division between the State Grid and Southern Grid has created market barriers, but the new trading mechanism aims to break these barriers and optimize resource allocation nationwide [1][2]. - The cross-grid trading mechanism allows for better utilization of supply-demand complementarity between provinces, such as the peak load differences between Sichuan and Chongqing [3]. - The mechanism is expected to enhance the efficiency of resource utilization, reducing the need for extensive peak regulation resources in each province [5]. Group 3: Promotion of Green Electricity - The plan facilitates the nationwide flow of green electricity by allowing individual renewable energy projects to participate in cross-regional trading, thus removing institutional barriers [3][4]. - The integration of blockchain technology for tracking green electricity enhances the credibility and traceability of renewable energy transactions [4]. - The trading mechanism has already resulted in significant green electricity transactions, with over 8.7 billion kilowatt-hours traded during the pilot phase [4]. Group 4: Future Prospects and Safety Measures - The continuous opening of cross-grid trading and the construction of more transmission channels are expected to significantly increase transmission capacity and enhance renewable energy absorption [5]. - Safety is a critical aspect of the cross-grid trading mechanism, requiring dual verification from both grid sides to ensure reliable operation [5]. - The anticipated collaboration between various electricity trading centers during events like the National Games will further promote coordinated trading across different grids [5].

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 ...

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 ...

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 ...