Core Points - The article highlights significant achievements in China's transportation sector during the "14th Five-Year Plan" period, emphasizing technological advancements and infrastructure development [4][10] - It discusses the integration of new technologies such as digital economy, artificial intelligence, and smart logistics into the transportation industry, aiming for enhanced efficiency and connectivity [4][3] - The article showcases specific projects like the CR450 high-speed train and the Shenzhen-Zhongshan Link, which have set world records and improved transportation efficiency [6][8] Group 1: Transportation Infrastructure Achievements - The completion of the Shenzhen-Zhongshan Link, a major engineering project, has created multiple world records and significantly improved travel time across the Pearl River Delta [8] - The CR450 high-speed train, capable of reaching speeds of 450 km/h, represents a breakthrough in high-speed rail technology, marking China's leadership in this field [6][7] - By the end of 2024, over one-third of provinces in China will have high-speed rail connections, with a record of over 23 million passengers transported in a single day [7][4] Group 2: Technological Innovations - The article emphasizes the importance of autonomous innovation in achieving breakthroughs in high-speed rail technology, with a focus on overcoming geological challenges [7][6] - The development of the world's longest highway tunnel, the Tianshan Victory Tunnel, showcases China's engineering capabilities and commitment to infrastructure improvement [9] - The introduction of green transportation solutions, such as the first domestic dual-fuel ship and zero-carbon highways, reflects China's commitment to sustainable development in the transportation sector [11][12] Group 3: Future Directions - The article outlines plans for further integration of smart technologies and green initiatives in transportation, aiming to enhance efficiency and reduce carbon emissions [12][11] - The transportation sector is expected to play a crucial role in supporting China's broader goals of modernization and national rejuvenation, with a focus on safety, intelligence, and sustainability [12][4] - The commitment to maintaining technological leadership through independent innovation is emphasized as essential for future advancements in the transportation industry [10][6]

Core Viewpoint - The construction of the Kangding (Kang) - Xinduqiao (Xin) Expressway faces significant geological challenges, including frozen ground, rock piles, and water-rich fault zones, which complicate the tunneling process [1][3]. Group 1: Geological Challenges - The Kangding Tunnel's surrounding rock is primarily medium-weathered granite, characterized by a fragmented structure and poor integrity, leading to a high risk of collapse during excavation [1]. - The Gongbuka Tunnel features heavily weathered granite with frequent geological changes and a high risk of collapse due to continuous groundwater erosion [1]. - The inflow of groundwater at the tunnel entrance can reach a peak of 140 cubic meters per hour, significantly compromising the stability of the surrounding rock [1]. Group 2: Construction Techniques - The project team employs a series of scientific and effective technical solutions, including the three-step method and principles of "advanced management, short advance, strong support, and frequent measurement" to ensure safety [3]. - Dynamic management and design are emphasized, with strict adherence to advanced horizontal drilling and geological survey methods to monitor the surrounding rock conditions [3]. - As of now, both the Kangding and Gongbuka tunnels have successfully navigated two major geological risk sections, with water inflow controlled within 70% of the design value [3]. Group 3: Project Significance - The Kangxin Expressway spans approximately 80 kilometers, with a bridge-tunnel ratio of 65.9%, enhancing transportation links between the Kangba region and the Chengdu Plain [3]. - The project is expected to provide robust support for highland railway construction and significantly boost the economic, social, and cultural development along the route [3].

陆地集群无线电标准（TETRA）由欧洲电信标准协会制定，是国际上应用最广的无线电加密通信标准 之一，被摩托罗拉、赛普乐等相关通信设备生产企业广泛采用，使用范围遍布100多个国家，主要用于 警察、救援、军队等部门的加密通信或关键基础设施工业控制系统的数据传输。 2023年，荷兰安全公司Midnight Blue研究团队发布报告称，TETRA的加密算法存在"后门"，部分设备间 的无线电加密通信可被快速破解。之后，欧洲电信标准协会建议使用该算法进行敏感通信的用户需要在 TETRA的基础上增加"端到端加密"。然而，今年8月，Midnight Blue团队再次宣布，至少有一种欧洲电 信标准协会认可的端到端加密系统也存在与TETRA"后门"类似的漏洞。 研究人员认为，用户可能在不知情的情况下，获得了有漏洞、可被破解的无线电加密通信系统。 巧合的"后门" 相似的漏洞 简单理解，TETRA的TEA加密算法是保障无线电通信安全的第一把锁，端到端加密就是在第一把锁不 太可靠的情况下加上的第二把锁。该技术采用128位密钥，主要目标客户是对通信安全性要求更高的各 国安全机构。 然而，这第二把锁似乎也不怎么可靠。 最近，Midnigh ...

受蝙蝠、鲸鱼等生物利用声波交流导航的启发，美国宾夕法尼亚州立大学与德国慕尼黑大学科学家联 手，在12日出版的《物理评论X》杂志上发表重要研究成果：配备简易声学设备的个体微型机器人，能 通过声波协调形成具有环境适应能力的智能集群，其自组织行为堪比鸟群或鱼群。 研究团队首次证实声波可作为微型机器人的控制媒介。这些理论模型中的机器人仅配备微型麦克风、扬 声器、振荡器和电机等基础元件，却展现出惊人的群体智慧。每个个体都会自动将振荡器频率与群体声 场同步，并向最强声源靠拢。 研究团队从未预料到如此简单的设计能产生这般精妙的集体行为。相较于活性物质依赖化学信号的传统 控制方式，声波通信具有显著优势：传播更快更远、能量损耗极低，且系统设计更为简洁。 虽然当前研究仍停留在计算机模拟阶段，但研究团队确信，任何遵循该设计的实体机器人群体都将呈现 相同的智能特征。这种声控微型机器人集群能在狭小空间灵活导航、形态受损后可自主重组，且具备环 境集体感知功能。 这些特性使机器人集群能在灾后环境勘探、污染物清理、靶向药物输送，以及环境监测等多个应用场景 中大显身手。而且，即使个别机器人损坏，集群仍能保持整体功能，这种自我修复特性对传感器网 ...

Group 1 - The article discusses a new type of "light propulsion" flying device, which is a small solar-powered floating apparatus capable of carrying instruments at high altitudes in the atmosphere, paving the way for future climate monitoring and Mars exploration [1][2] - "Light propulsion" generates motion by heating particles suspended in a gas or liquid with light, a principle known for over a century, but practical applications have only recently been explored [1] - A research team from Harvard University designed a new flying structure made of two thin, porous membranes connected by tiny vertical supports, optimizing "light propulsion" through computer modeling and laboratory experiments [1] Group 2 - The research highlights the potential of "light propulsion" devices as tools for monitoring Earth's atmosphere and exploring other planets, with significant advantages in size, weight, and power consumption compared to traditional satellites [2] - Future designs of these devices could include navigation systems, increased payload capacity, and longer operational durations, enabling them to perform larger-scale tasks [2]

Group 1 - A recent study led by a team from Rice University has achieved the strongest phonon interference effect in silicon carbide systems to date, known as "Fano resonance," with an intensity two orders of magnitude higher than previously reported [1] - This phonon-based technology is expected to advance molecular-level sensing technology and open new application pathways in energy harvesting, thermal management, and quantum computing [1] - The breakthrough relies on constructing a two-dimensional metallic interface on a silicon carbide substrate, significantly enhancing the interference effect of different vibration modes within silicon carbide [1] Group 2 - The interference sensitivity is high enough to detect single molecules without the need for chemical labels, and the device is simple and scalable, promising applications in quantum sensing and next-generation molecular detection [2] - In low-temperature experiments, the team confirmed that this effect is entirely due to phonon interactions rather than electronic effects, making this "pure phonon" quantum interference rare and specific to the two-dimensional metal/silicon carbide system [2]

Core Insights - Tianjin University has introduced a groundbreaking "de-localized" electrolyte design concept, achieving energy densities of over 600 Wh/kg for pouch cells and 480 Wh/kg for module batteries, significantly enhancing energy density and endurance by 2-3 times compared to existing commercial lithium batteries [1] - The new lithium metal battery technology addresses the global challenge of balancing high energy output with long cycle life, which has been a major limitation in the industry [1] - The innovative electrolyte design enhances the stability of the electrode/electrolyte interface, providing substantial potential for performance breakthroughs in battery technology [1] Industry Developments - The research team is actively promoting the technical transformation and application verification of their findings, having established a pilot production line for high-energy lithium metal batteries [2] - The developed products have been successfully integrated into three models of micro all-electric unmanned aerial vehicles in China, resulting in a 2.8 times increase in flight endurance [2]

科技日报记者 付毅飞 记者从中国航天科技集团获悉，8月13日14时43分，长征五号乙运载火箭/远征二号上面级在中国文昌航天发射场升空，随后将卫星互联网低 轨08组卫星送入预定轨道，发射任务获得圆满成功。 此次任务是长征系列运载火箭的第588次发射。责任编辑：李梦一 相关稿件： 长征五号乙运载火箭和远征二号上面级均由中国航天科技集团一院抓总研制。长征五号乙运载火箭是继承长五火箭研制基础的大型低温运载 火箭。远征二号上面级是目前规模最大、能力最强的常规动力液体上面级。二者组成的运载系统可执行近地轨道、太阳同步轨道等轨道发射 任务，具备一箭一星、一箭多星发射及星座部署能力，支持串联布局、并联布局、侧挂布局和串并联布局等。 卫星互联网低轨08组卫星由中国航天科技集团五院抓总研制。 ...

Core Insights - Scientists from Swiss Federal Institute of Technology Zurich, University of Zurich, and Ghent University have developed an innovative gene editing method that combines advanced "gene scissors" technology with artificial intelligence (AI), significantly enhancing the precision of DNA editing [1][2] - The new AI tool named "Pythia" allows scientists to predict the outcomes of gene editing with unprecedented accuracy, particularly in how cells will repair DNA breaks caused by techniques like CRISPR/Cas9 [1][2] Group 1 - The technology aims to ensure that "gene scissors" do not cause unintended genetic mutations while maintaining overall genomic stability, which is crucial for safe treatments [1] - The AI-guided repair templates have been validated in human cell culture systems, achieving efficient and precise gene editing and foreign gene integration [2] - The method has been tested in various biological models, including African clawed frogs and live mice, successfully editing DNA in non-dividing tissues such as the brain [2] Group 2 - Pythia utilizes identifiable and learnable repair patterns, indicating that DNA repair processes are not random but follow specific rules [2] - The technology can modify single bases or insert foreign genes and can also be used to tag specific proteins, enabling direct observation of protein behavior in healthy and diseased tissues [2] - Its versatility allows application in various cell types, including non-dividing cells like neurons, providing new hope for treating challenging conditions such as neurological diseases [2]

Core Insights - Yunnan Province's Wenshan Zhuang and Miao Autonomous Prefecture is recognized as the "Hometown of Sanqi," with a total industrial output value exceeding 40 billion yuan for the Sanqi industry and 83.309 billion yuan for the green aluminum sector [1] - The region has seen significant technological innovation and transformation in both emerging and traditional industries, driven by increased R&D investment and supportive policies [1][2] - In 2023, Wenshan's total R&D expenditure reached 1.41 billion yuan, a 135% increase from 2020, with projections for 2024 indicating a further increase to 2.04 billion yuan, up 3.2% year-on-year [1][2] R&D and Innovation - Wenshan has established 66 high-tech enterprises, a 200% increase since the end of the 13th Five-Year Plan, and aims to reach 76 by 2025 [2] - The region's innovation ecosystem is bolstered by various platforms, including a provincial high-tech industrial development zone and multiple innovation spaces [2][3] - The establishment of research centers and collaboration with universities and research institutions has facilitated the alignment of cutting-edge research with industry needs [3] Talent Development - Wenshan has implemented initiatives like the "Xingwen Talent" program to attract and cultivate talent, resulting in the establishment of 112 provincial and state-level expert workstations [3] - The region has seen the involvement of 1,356 provincial technology specialists and 1,404 "Three Districts" technology talents, enhancing the local workforce's capabilities [3] Industry Impact - The application of technological advancements has led to significant developments in key industries, including the introduction of new Sanqi varieties and the establishment of the largest Sanqi seed resource base in the country [4] - Innovations in agriculture, such as the "Wenlu Rice No. 4" and "Wenmai No. 14," have gained international recognition, showcasing the region's agricultural capabilities [4][5] - The green transformation of the aluminum industry and digital upgrades in traditional crops are expanding the industrial scale and boundaries in Wenshan [5]