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乌鲁木齐:软服务撑起特色产业硬实力
Ke Ji Ri Bao· 2025-08-21 06:36
Group 1 - A fluorine materials integration project with an investment of approximately 7 billion yuan has been established in Urumqi, focusing on high-value fluoropolymer monomers and high-end polymers, aiming to create a leading domestic and internationally competitive fluorine materials production base [1] - Urumqi signed 40 contract projects and 3 strategic cooperation framework agreements at the 2025 (China) Eurasian Commodity Trade Expo, with a total signing amount of 89.385 billion yuan, primarily targeting new energy and new materials [1] Group 2 - Iron Construction Heavy Industry Xinjiang Co., Ltd. has successfully transitioned to high-end agricultural machinery manufacturing, developing key technologies for cotton harvesting machinery, which supports the mechanization of the Xinjiang cotton industry [3][4] - Xinjiang Longju New Materials Co., Ltd. has launched high-performance carbon fiber products that are lightweight, high-strength, and heat-resistant, applicable in high-speed trains, aircraft components, and new energy sectors [3] Group 3 - The Urumqi government has implemented policies to support the development of modern industrial systems, focusing on five major industries: equipment manufacturing, biomedicine, chemicals, new energy, and new materials, while also promoting light industries [4] - Xinjiang Huashidan Pharmaceutical Research Co., Ltd. is recognized as an innovative small and medium-sized enterprise, focusing on the development of traditional Chinese medicine and chemical new drugs, with 28 ongoing research projects [5] Group 4 - The Xinjiang Uygur Autonomous Region's Industry and Information Technology Department has allocated 2.76 million yuan in initial subsidy funds to support national-level specialized and innovative "little giant" enterprises, such as Xinjiang Beidou Tongchuang Information Technology Co., Ltd. [6] - The company is investing 12 million yuan in research and development this year, focusing on breakthroughs in artificial intelligence applications and operational technology [6] Group 5 - Urumqi has established a gradient cultivation system for quality small and medium-sized enterprises, supporting their transition towards specialization and innovation, with a focus on high-temperature sensitive sensors for extreme environments [7][8] - The 11th Urumqi Innovation and Entrepreneurship Competition featured 92 companies competing in various fields, with the aim of identifying projects with market potential and social value, supported by financing services from financial institutions [8]
湖北光伏装机容量创新高
Ke Ji Ri Bao· 2025-08-21 02:37
Core Insights - Hubei's photovoltaic installed capacity has surpassed 42.8282 million kilowatts, accounting for 32.31% of the total installed capacity, making it the largest power source in the province [1] - The photovoltaic capacity has exceeded hydropower for the second time this year and has now surpassed thermal power, which has an installed capacity of 41.1880 million kilowatts, representing 31.08% [1] - State Grid Hubei Electric Power is enhancing the grid structure to improve the absorption capacity in regions with concentrated photovoltaic installations, such as Suizhou, Xiaogan, and Huanggang [1]
量子技术为金融业构筑“防火墙”
Ke Ji Ri Bao· 2025-08-21 01:31
Core Insights - Quantum technology presents new development opportunities for the banking industry, enhancing security against financial fraud and risk prediction [1] - Financial institutions must move beyond experimental phases to fully leverage the benefits of quantum technology [1] Group 1: Enhancing Risk Prediction Capabilities - Quantum computing is transforming risk modeling, fraud detection, and portfolio optimization, addressing limitations of traditional methods [2] - Yapı Kredi Bank in Turkey has developed an innovative financial risk assessment model using quantum computing to identify potential risk points in SMEs, significantly reducing analysis time from years to just 7 seconds [2] Group 2: Combating Fraud - Quantum technology enables faster and more accurate detection of financial fraud, with the UK banking sector facing losses of up to $1.6 billion in 2024 due to fraud [3] - The UK government plans to invest $162 million in quantum technology to combat financial crime, including fraud and money laundering [3] - Intesa Sanpaolo Bank in Italy has successfully implemented a quantum-based classifier to analyze transaction data, achieving higher accuracy and efficiency with less data [3] Group 3: Protecting Sensitive Financial Data - Quantum security technology, including quantum key distribution and quantum random number generation, offers theoretically "absolute security" for encrypted communications [4] - "Post-quantum cryptography" is a promising algorithm that protects financial data against potential quantum computer attacks, adhering to international standards [4] - HSBC has applied quantum security technology in gold token trading, ensuring secure blockchain data circulation and improving market efficiency [4] Group 4: Ongoing Research and Development - Banco Sabadell in Spain has initiated a four-month research project on "post-quantum cryptography," focusing on the agility of encryption systems to adapt to threat levels [5]
大质量恒星生命结束之谜揭示
Ke Ji Ri Bao· 2025-08-21 01:31
在天文学领域,大质量恒星一直是研究重点。这类恒星通常可以达到太阳质量的几十倍甚至上百 倍,但目前对于这一类恒星"诞生"与"终结"的研究,依然存在一些理论分歧。 人们预测,生命末期的大质量恒星会形成由不同元素组成的壳状结构,较重的元素预计会更靠近核 心,但这很难被观察到。 科技日报北京8月20日电 (记者张梦然)《自然》20日刊登的论文报告了一次罕见的宇宙事件:一 颗大质量恒星在超新星爆发时,"自曝"其内部结构,从而向人们揭示了大质量恒星生命结束之谜。该研 究对恒星演化提供了新见解,证实了对恒星临近生命末期结构的预测。 在同时发表的新闻与观点文章中,天文学家认为这项发现"直接证实了理论预测的恒星壳结构,一 直延伸到富含硅和硫的层"。 研究人员提出,恒星暴露出的内部结构,挑战了现有关于大质量恒星质量损失和剥离机制的理论, 并提出这可能涉及一种罕见的机制。 美国西北大学研究人员此次报告了他们对超新星2021yfj的观察。其前身恒星似乎已剥离了大多数 外层,超新星爆发揭示了其内部恒星层。研究人员观察到一个厚且大质量的富含硅和硫的壳,在超新星 爆发前不久被原恒星排出。但他们还检测到了氦,这有些出乎意料,因为人们认为较轻 ...
酒精消毒,伤口越疼越有效?
Ke Ji Ri Bao· 2025-08-21 01:17
Core Viewpoint - The claim that "the more painful alcohol treatment is, the more effective it is" lacks scientific basis, as pain is a result of alcohol's chemical irritation rather than its disinfecting efficacy [2][3]. Disinfection Mechanism - Alcohol is a traditional disinfectant that effectively kills various microorganisms, but the pain experienced during application is due to its irritative effects on nerve endings and tissue dehydration [2]. - The effectiveness of alcohol disinfection is influenced by factors such as concentration, contact time, type of microorganisms, and cleanliness of the wound [3]. Alcohol Concentration - The optimal concentration for disinfection is between 70% and 80%, with 75% being commonly used; concentrations that are too low or too high can hinder disinfection effectiveness [3]. Cleaning Procedures - Prior to using alcohol for disinfection, it is essential to clean the wound with running water and soap to remove visible dirt, as contaminants can obstruct alcohol's contact with pathogens [3]. Alternative Disinfectants - For superficial wounds with minimal bleeding, iodine-based disinfectants are recommended due to their broad-spectrum efficacy and lower irritation compared to alcohol [4][5]. - In cases of deeper wounds, medical attention is advised to assess the depth, presence of foreign objects, and bleeding [5].
2024年全球陆地和海洋温度破纪录
Ke Ji Ri Bao· 2025-08-21 01:04
Core Insights - The latest report from the American Meteorological Society, titled "Annual Climate Status Report," warns that multiple climate indicators are set to break records in 2024, including greenhouse gas concentrations, land and ocean temperatures, sea level heights, and ocean heat content [1][2] Group 1: Greenhouse Gas Concentrations - The concentration of carbon dioxide in the atmosphere has reached 422.8±0.1 parts per million (ppm), a 52% increase from the pre-industrial level of 278 ppm [1] Group 2: Temperature Records - Global surface temperatures have broken records for two consecutive years, exceeding the 1991-2020 average by 0.63℃ to 0.72℃ [2] - The period from 2015 to 2024 is confirmed as the hottest decade on record, according to six authoritative datasets [2] Group 3: Ocean Temperature and Heat Waves - Influenced by the El Niño phenomenon, global sea surface temperatures are expected to reach new highs in 2024, with an increase of 0.06℃ compared to the record set in 2023 [2] - Approximately 91% of ocean areas are experiencing heat waves, while only 26% are facing cold waves [2] Group 4: Water Cycle and Extreme Weather - The amount of water vapor in the atmosphere has reached a historical high, with over 20% of global regions experiencing extreme vapor values, significantly higher than the 10% recorded in 2023 [2] Group 5: Ocean Heat Content and Sea Level Rise - Global ocean heat content has reached unprecedented levels, with measurements taken from the surface down to 2000 meters deep continuing to increase [2] - The global average sea level has set new records for 13 consecutive years, rising approximately 105.8 millimeters since the beginning of satellite monitoring in 1993 [2] Group 6: Glacier Melting - In 2024, 58 benchmark glaciers worldwide have reported mass loss for two consecutive years, marking the largest average loss in 55 years [2] - Venezuela has become the first Andean country to completely lose its glaciers, while the Conejeras Glacier in Colombia has been officially declared "dead" [2]
【科技日报】自旋电子器件节能机制发现
Ke Ji Ri Bao· 2025-08-21 00:55
Core Insights - The research team at the Ningbo Institute of Materials Technology and Engineering has made a significant breakthrough in the field of next-generation spintronic devices, transforming obstacles to electron movement into performance enhancers, providing a new approach to overcoming the core bottleneck faced by spintronic devices [1][3] Group 1: Spintronic Devices - Spintronic devices theoretically possess advantages such as high speed and non-volatility, but face challenges related to high write current and power consumption, hindering large-scale application [1][2] - The "power wall" has become a critical bottleneck for industry development, as traditional electronic technologies approach their performance limits due to increased power consumption and heat generation from densely integrated components [1] Group 2: New Physical Principles - The research team discovered a new physical law, termed "non-traditional scaling law," indicating that crystal defects, previously seen as obstacles, can enhance the performance of devices by strengthening the orbital effect when interacting with the orbital flow of electrons [3] - This finding provides a new physical basis for developing efficient orbital electronic devices and offers fresh design ideas for the field of spintronics [3]
【科技日报】高承载长寿命聚合物水润滑材料研究取得进展
Ke Ji Ri Bao· 2025-08-21 00:55
Core Insights - Researchers from the Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, have developed a superlubricating polymer gel material inspired by the continuous lubrication mechanism of earthworms [1] - The research paper was published in "Nature Communications," highlighting the innovative approach to creating biomimetic multi-level structured superlubricating polymer gel materials [1] Material Development - The material was created using strategies such as controllable chemical etching, in-situ wrinkling, laser microfabrication, and balanced swelling of closed pores [1] - It exhibits an ultra-low friction coefficient and stable, long-lasting superlubrication lifespan under high contact pressure conditions, with no surface wear [1] Performance Characteristics - This polymer gel-based superlubricating material has the highest reported load-bearing capacity at the macro scale [1] - In quasi-wet testing conditions, the material can achieve considerable sustained lubrication with limited lubricant supply [1] Mechanisms of Superlubrication - The robust and durable superlubrication behavior is attributed to factors such as hydration effects at the sliding interface, electrostatic repulsion, mechanical matching of the lubricating layer and load-bearing phase, and the self-pumping characteristics of the lubricant during friction [1] Practical Applications - The researchers built a load-friction mechanical drive testing system to visually demonstrate the mechanical robustness and reliable superlubrication behavior of the material [1] - This research provides theoretical guidance for the development of water-based superlubricating moving parts and medical devices [1]
【科技日报】2025年两院院士增选有效候选人名单公布
Ke Ji Ri Bao· 2025-08-21 00:44
Group 1 - The Chinese Academy of Sciences (CAS) has confirmed 639 valid candidates for the 2025 academician election, with specific distributions across various departments, including 98 in Mathematics and Physics, 105 in Chemistry, 125 in Life Sciences and Medicine, 96 in Earth Sciences, 61 in Information Technology, 104 in Engineering Technology, and 50 in special recommendation fields [1] - The Chinese Academy of Engineering (CAE) has confirmed 660 valid candidates for the 2025 academician election, with distributions including 68 in Mechanical and Transportation Engineering, 68 in Information and Electronic Engineering, 71 in Chemical, Metallurgical and Materials Engineering, 72 in Energy and Mining Engineering, 91 in Civil, Hydraulic and Architectural Engineering, 73 in Environmental and Light Textile Engineering, 83 in Agriculture, 91 in Medicine and Health, and 43 in special channels [2] - The 2025 academician election guidelines emphasize the importance of significant contributions, academic standards, and ethical conduct, while also focusing on meeting national development and security needs, promoting balanced development across disciplines, and highlighting the recommendation of researchers actively engaged in frontline scientific research [1] Group 2 - The CAE's election guidelines align closely with national strategic needs and discipline development, emphasizing technological innovation to lead the development of new productive forces, and prioritizing candidates in critical fields, emerging disciplines, interdisciplinary areas, major national projects, significant research tasks, and major scientific infrastructure construction [2] - The 2025 election process for both academies officially commenced on April 25, with each academy having a limit of no more than 100 new academicians [2]
【科技日报】嫦娥六号月球岩屑揭示太阳系撞击历史
Ke Ji Ri Bao· 2025-08-21 00:44
Core Viewpoint - The research team led by Xu Yigang from the Guangzhou Institute of Geochemistry has accurately determined that the Apollo basin on the Moon formed 4.16 billion years ago, providing crucial evidence for understanding the late heavy bombardment in the solar system [1][2]. Group 1: Research Findings - The study published in the journal Nature Astronomy reveals that the age of the Apollo basin has been pushed forward by at least 100 million years, updating the timeline for the onset of the late heavy bombardment [2]. - The research indicates that the impact flux during the late heavy bombardment period shows a gradual decline, contradicting the hypothesis of a sudden increase in impact flux between 4 billion and 3.8 billion years ago [2]. Group 2: Methodology - The team analyzed 3.5 grams of lunar soil, discovering three rock fragments with diameters of 150-350 micrometers, which are ideal "rock clocks" that record impact events [1]. - The age determination of the rock fragments was achieved by integrating remote sensing images and geochemical data, confirming the 4.16 billion-year age for the Apollo basin [2].