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重要进展!成功实现稳定产出→
Ke Ji Ri Bao· 2025-08-29 10:00
Core Viewpoint - Ansteel Group has successfully established the world's first green electricity and green hydrogen fluidized bed hydrogen metallurgy pilot line, achieving stable production of nearly zero-carbon direct reduced iron products with a metallization rate of 95%, marking a significant transition from laboratory research to pilot testing [1][3] Group 1 - The project utilizes green electricity sourced from wind power and employs advanced alkaline water electrolysis technology to produce green hydrogen, addressing issues related to high energy consumption, material stability, and safety in hydrogen storage, transportation, and usage [3] - The project leverages new fluidized bed hydrogen reduction iron technology, overcoming challenges such as poor adaptability of traditional hydrogen metallurgy raw materials, low reduction efficiency, and issues with agglomeration, thus enabling a complete process from hydrogen production to reduction and briquetting [3] - The technology package developed has complete independent intellectual property rights, showcasing a significant advancement in hydrogen metallurgy processes [3]
开创多元协同治理格局 促进人工智能安全有序发展
Ke Ji Ri Bao· 2025-08-29 06:37
Group 1 - The core viewpoint of the article emphasizes the strategic importance of AI as a key driver for high-quality development in China, as outlined in the recent government opinion document [1][3][10] - The document identifies six key actions and eight foundational supports to promote the dual empowerment of technology and application, aiming for deep integration of AI into various sectors including scientific research, industry, and public welfare [1][3] Group 2 - AI is positioned as a "key increment" for high-quality development, with its core value reflected in four dimensions: empowerment, burden reduction, quality improvement, and efficiency enhancement [3][10] - AI is expanding the cognitive boundaries of scientific research, acting as an accelerator for foundational studies, such as AlphaFold solving the protein folding problem [3] - The document highlights AI's role in reducing workload through automation, thereby creating better job opportunities and enhancing consumer satisfaction [3] - In manufacturing, AI has been shown to reduce equipment failure rates by 20%, while in education and healthcare, AI systems are customizing learning paths and assisting doctors, respectively [3] Group 3 - The document addresses the need for a "safety and controllability" principle, emphasizing the importance of preventing security risks associated with AI [6][10] - It outlines inherent risks of AI models, including their "black box" nature, which leads to challenges in understanding decision-making processes and vulnerabilities to adversarial attacks [6] - Ethical challenges are also highlighted, where biases in training data can amplify societal issues, potentially leading to the spread of negative sentiments [6] Group 4 - The document proposes a new governance framework that emphasizes multi-dimensional collaboration to ensure the safe development of AI [8][9] - It suggests a "four-in-one" collaborative governance system that includes improving legal frameworks, establishing a multi-faceted public safety system, creating a network governance system, and developing an intelligent emergency response system [8] - The document also emphasizes enhancing safety governance capabilities across four key areas: technical safety, ethical safety, application safety, and national security [9]
【科技日报】临床植入式电极精准定位脑深部肿瘤边界
Ke Ji Ri Bao· 2025-08-29 00:53
Core Insights - The clinical trial conducted by the Aerospace Information Innovation Research Institute and Harbin Medical University is the first in the world to apply brain-machine interface technology for precise boundary localization of deep brain tumors during surgery [1][2] - The trial utilized the NeuroDepth microelectrode and the AIRCAS-128 device, enabling real-time detection and analysis of neural signals, which aids in accurate tumor boundary identification [1][2] Group 1 - The clinical trial represents a significant breakthrough in domestically developed implantable clinical brain-machine interface technology [1] - The NeuroDepth microelectrode can detect signals from various brain regions, including deep brain areas, overcoming the limitations of traditional electrodes [1] - The technology allows for simultaneous detection of chemical signals, providing comprehensive data to differentiate between tumor and normal tissue [1] Group 2 - The trial was conducted on a glioma patient who experienced frequent seizures due to tumor pressure, and it successfully identified tumor boundaries while preserving functional areas [2] - The success of this clinical trial marks a critical step towards the clinical translation and industrialization of brain-machine interface technology [2]
光学AI图像生成器能耗降至毫焦级
Ke Ji Ri Bao· 2025-08-29 00:32
Core Insights - A research team from the University of California, Los Angeles, has developed a new type of image generator that uses light beams instead of traditional computing hardware, significantly reducing energy consumption to one hundred-thousandth of standard AI tools, requiring only a few millijoules [1][2] Group 1: Technology Overview - Traditional digital diffusion models require hundreds to thousands of iterations to generate images, while the new system only needs initial encoding without additional computation [2] - The system utilizes a digital encoder trained on publicly available image datasets to create static encodings that can be converted into images [2] - The encoding is physically imprinted onto a laser beam using a Spatial Light Modulator (SLM), allowing for instant image presentation when the laser passes through a second SLM [2] Group 2: Performance and Applications - In tests, the new system generated simple images and Van Gogh-style paintings, achieving results comparable to traditional image generators [2] - The energy consumption for generating a Van Gogh-style image was approximately a few millijoules, while traditional diffusion models required hundreds to thousands of joules [2] - The low power characteristics of this system make it particularly suitable for applications in wearable devices, such as AI glasses [2]
新技术造出溶于水的电路板
Ke Ji Ri Bao· 2025-08-29 00:30
Core Viewpoint - The research from the University of Maryland presents a breakthrough in sustainable electronics by utilizing 3D printing technology to create water-soluble circuit boards, which could significantly reduce electronic waste and promote a more sustainable future for the consumer electronics industry [1][2]. Group 1: Innovation and Technology - The team developed circuit boards using polyvinyl alcohol (PVA), a water-soluble polymer, and demonstrated the assembly of functional electronic products like Bluetooth speakers and toys [1]. - The circuit boards can dissolve in water after a certain period, allowing for easy separation of electronic components and the recovery of up to 99% of the PVA material after evaporation [1]. Group 2: Environmental Impact - Traditional printed circuit boards contribute to significant electronic waste, with only a small fraction being recycled; the new technology offers a more environmentally friendly alternative [1][2]. - According to a UN report, Asia generates 600,000 tons of waste circuit boards annually with a recycling rate of only 17%, while Europe and North America produce around 300,000 tons each, with recycling rates of 61% and 44%, respectively [2]. Group 3: Market Application and Limitations - The dissolvable circuit boards are particularly suitable for rapid prototyping and testing of electronic devices, presenting an eco-friendly advantage over traditional circuit boards [2]. - Current limitations include the durability of the circuit boards, which makes them more appropriate for prototype development rather than large-scale production; the team is in discussions with manufacturers to explore feasible pathways for broader application [2].
3D打印神经支架可用于修复脊髓损伤
Ke Ji Ri Bao· 2025-08-29 00:29
Core Insights - A groundbreaking method combining 3D printing, stem cell biology, and lab-cultured tissue technology has been developed by a research team at the University of Minnesota, offering new hope for spinal cord injury repair [1][2] - Over 300,000 individuals in the U.S. suffer from spinal cord injuries, with no effective means to fully reverse the resulting neurological damage and paralysis [1] - The innovative 3D-printed scaffold supports the growth of spinal cord organoids and contains region-specific spinal neural progenitor cells (sNPC) derived from human adult stem cells, which can self-renew and differentiate into various mature neural cells [1] Research Findings - The scaffold creates a neural relay system that, when implanted into the spinal cord, bypasses the damaged area and reconstructs neural signal pathways [1] - In animal experiments, the sNPC-containing scaffold was transplanted into completely transected rat spinal cords, resulting in the successful differentiation of implanted cells into functional neurons, extending nerve fibers in both rostral and caudal directions, and establishing new synaptic connections with the host spinal cord's existing neural network [1][2] Future Implications - The integration of newly formed neural tissue with the host spinal cord significantly enhances motor function recovery in rats, indicating the potential of this technology to restore neural conduction capabilities in damaged spinal cords [2] - The research is still in its early stages, primarily validating feasibility in animal models, but the scaffold presents unprecedented hope for curing spinal cord injuries [2]
量子信号首次用互联网协议传输
Ke Ji Ri Bao· 2025-08-29 00:29
Core Insights - A team of engineers from the University of Pennsylvania has successfully transitioned quantum network technology from the laboratory to practical application, marking a significant step towards building a future quantum internet [1] - The core achievement is a micro "Q chip" that coordinates the transmission of quantum information with classical data, allowing quantum signals to communicate using the language of modern internet protocols [1] Group 1 - The Q chip has been demonstrated to send quantum signals over commercial fiber networks while automatically correcting noise during transmission, packaging quantum and classical data into standard internet data packets [1] - The integration of the Q chip allows for the management of quantum signals on commercial networks using the same protocols as classical internet, indicating a move towards larger-scale experiments and practical quantum internet applications [1][2] - The challenge of expanding quantum signals has been addressed by the development of the Q chip, which coordinates a mixed information flow of classical signals and quantum particles [1] Group 2 - The mechanism of the Q chip is likened to railway transport, where classical signals act as the locomotive, guiding and navigating, while quantum information is akin to sealed containers that are securely delivered [2] - The Q chip is made from silicon-based materials and manufactured using established semiconductor processes, providing a realistic foundation for large-scale production and widespread application of the technology [2] - Currently, the network connects two buildings with one server and one node, utilizing approximately one kilometer of fiber, and can be expanded by producing more chips to integrate with existing urban fiber networks [2]
3D打印超导体磁场强度创纪录
Ke Ji Ri Bao· 2025-08-29 00:27
Core Insights - Researchers at Cornell University have developed a groundbreaking "one-step" 3D printing method for creating record-performance superconductors, specifically niobium nitride, achieving an unprecedented upper critical magnetic field of 40-50 teslas [1][2] - This new method simplifies traditional complex processes, potentially advancing various fields from medical imaging magnets to quantum devices [1] Group 1: Research Breakthrough - The 3D printed niobium nitride superconductor exhibits a record "constraint effect induced value" due to its nanoporous structure, which is crucial for strong superconducting magnets like MRI machines [2] - The team previously utilized block copolymers for self-assembling superconductors, demonstrating that soft material methods can produce superconductors with performance comparable to traditional methods [1][2] Group 2: Methodology and Efficiency - The new "one-step" process uses an "ink" composed of block copolymers and inorganic nanoparticles, allowing for self-assembly during 3D printing and subsequent thermal treatment to form porous crystalline superconductors [1] - This method eliminates multiple synthesis steps, powder preparation, binder addition, and several heating cycles, significantly enhancing efficiency [1] Group 3: Future Applications - The team plans to extend this method to other superconducting materials like titanium nitride and explore complex 3D geometries that are difficult to achieve with traditional methods [2] - The record high surface area resulting from the porous architecture opens new avenues for research into quantum materials and the development of next-generation devices [2]
临床植入式电极精准定位脑深部肿瘤边界
Ke Ji Ri Bao· 2025-08-29 00:26
记者28日从中国科学院空天信息创新研究院(以下简称"空天院")获悉,该院传感器技术全国重点实验 室与哈尔滨医科大学附属第一医院联合完成了"基于植入式微电极阵列的脑深部肿瘤边界精准定位"临床 试验。这是全球范围首个脑机接口应用于脑深部肿瘤术中边界精准定位的临床试验,标志着我国自主研 发的植入式临床脑机接口技术实现重要突破。 该临床试验采用了空天院自主研发的临床脑机接口微电极(NeuroDepth),以及多层次调控与高通量神 经信号同步检测仪(AIRCAS-128)。前者通过实时信号检测,高精度获取肿瘤边界特征信号;后者可 同步采集、分析海量神经信号,将电极捕捉的原始信号转化为精准的"病灶导航",为肿瘤术中边界判断 提供实时数据。 "该技术不仅突破了传统神经电极仅能检测脑表面和浅层的局限,可探测包含脑表面、浅脑与脑深部的 全脑任意区域;还可同步检测化学信号如多巴胺、谷氨酸等神经递质,为区分肿瘤组织与正常组织提供 更全面的依据。"空天院特聘研究骨干、副研究员王蜜霞介绍,这有助于科学开展手术规划,在精准切 除恶性肿瘤的同时,保护大脑运动、语言、认知等功能区。 本次临床试验针对一位胶质瘤患者开展。该患者术前由于脑肿瘤压 ...
全球首款全频段高速通信芯片问世
Ke Ji Ri Bao· 2025-08-29 00:19
Core Insights - A groundbreaking adaptive, broadband, high-speed wireless communication chip has been developed using advanced thin-film lithium niobate photonic materials, marking a significant achievement in optoelectronic integration technology [1][2] - The chip overcomes the limitations of traditional electronic hardware, which operates only in single frequency bands, by enabling cross-band functionality [1] - The system achieves a transmission rate exceeding 120 gigabits per second, meeting the peak rate requirements for 6G communication [2] Group 1 - The chip integrates capabilities for broadband wireless and optical signal conversion, low-noise carrier signal coordination, and digital baseband modulation, effectively bridging the gap between different frequency devices [1] - The proposed integrated optoelectronic oscillator (OEO) architecture utilizes high-precision optical micro-ring frequency locking, enabling rapid and precise generation of communication signals across a super-wide frequency range from 0.5 GHz to 115 GHz [1] - This innovation addresses previous challenges in balancing bandwidth, noise performance, and reconfigurability, representing a milestone breakthrough in the field [1] Group 2 - The chip is expected to lay the hardware foundation for "AI-native networks," allowing dynamic adjustment of communication parameters to adapt to complex electromagnetic environments [2] - Future applications include enhancing base stations and vehicular devices to accurately sense their surroundings during data transmission, driving upgrades in key components such as broadband antennas and optoelectronic integrated modules [2] - The development paves the way for efficient utilization of frequency spectrum resources in terahertz and higher frequency bands for 6G communication [2]