来源：中国青年报 近日，经北京市东城区人力资源和社会保障局认定，杨龙无人机装调检修技能大师工作室成为区级技能 大师工作室。杨龙目前正带领工作室4名年轻的无人机装调检修工一起破解无人机教育行业痛点："市面 上很多无人机检修实训设备只能模拟简单故障、适配机型单一，我们想打造一款'零基础也能快速上 手'的智能平台。" 该工作室创新采用"北京研发+江苏测试"的两地联动模式。"北京侧重技术攻坚，江苏有专属飞行场地保 障实操验证。"杨龙介绍，2026年计划推出4至5款新设备，持续填补无人机教育行业技术空白。 "目前，无人机维修行业的问题很多。虽然厂家提供了售后维修服务，但大多只有1年保修期，维修成本 相对较高，特别是摔机后的无人机要返厂维修，可能要等1个月。"杨龙说，"很多客户来找我解决无人 机维修的各种难题，送来的无人机，很多都摔得惨不忍睹。只能仔细排查，看哪个设备还能使用，哪些 部位需要修复，哪些只能换掉。排查后还需反复测试、调控，稳定性是最关键的一个测试步骤，稍有差 池都会影响到无人机的稳定飞行。" 中国民航局发布的数据显示，2025年中国低空经济市场规模预计达1.5万亿元，2035年有望突破3.5万亿 元。相比之 ...

来源：科技日报 科技日报记者 王禹涵 "我们相当于在计算机里重建了一个'微型地幔实验室'。"西北工业大学博士研究生胡俊伟说，"借助机器 学习势函数，我们能精确刻画原子间的相互作用；再结合增强采样算法，便能观测到传统方法难以捕捉 的结晶过程，从而填补了实验手段在极端高温高压条件下难以获取的地幔凝固关键数据。" 研究发现，在岩浆洋底部处于高压且冷却相对缓慢的条件下，少量晶核可获得充足生长时间与空间，形 成厘米至米级的巨型晶体，并因自重上浮形成"晶体雨"并在中性浮力层聚集，从而推动早期地幔的分 层。 研究为认识地球早期演化提供了关键依据。"目前，我们正将这种方法拓展至地球内部及更多行星环境 的研究中，"牛海洋表示，"希望能揭示更多行星演化的秘密。" 针对地球早期岩浆洋如何结晶固化的关键科学难题，西北工业大学联合国际研究团队揭示下地幔主要矿 物在极端环境下可形成"米级巨晶"，并通过"晶体雨"的上浮方式推动早期地幔分层。相关成果于1月21 日在国际期刊《自然》在线发表。 地球形成初期曾极大概率处于全球熔融状态，这个炽热的"岩浆洋"如何凝固，直接决定了后来数十亿年 地球内部的结构与演化。长期以来，学界对岩浆洋是整体凝固还 ...

来源：科技日报 科技日报记者 赵汉斌 记者25日从昆明理工大学获悉，该校灵长类转化医学研究院团队近期研发的一种新型动态滑环水凝胶， 集伤口监测、精准适配、药物缓释等多种功能于一体，为再生医学与精准医疗领域提供了全新解决方 案。相关研究成果发表于国际期刊《先进医疗材料》。 这种新型水凝胶，采用超分子主—客体相互作用机制构建，核心由两种自主研发的材料组分构成：一种 是四臂聚乙二醇双酪氨酸，作为客体组分；另一种是经精氨酸-甘氨酸-天冬氨酸肽功能化修饰的超支化 聚甘油修饰α-环糊精，作为主体组分。两种组分通过特殊相互作用形成动态网络结构，赋予水凝胶剪切 变稀与快速自修复的独特特性。 这种设计，让水凝胶具备了多重实用功能。在临床应用中，它可实现室温下的挤出式三维打印，精准适 配不同形状的复杂创面，解决了传统医疗材料难以贴合不规则伤口的难题。同时，水凝胶中的双酪氨酸 核心使其拥有pH响应荧光传感功能，可通过荧光强度的变化，实时反馈伤口微环境的pH值波动，为医 生及时判断伤口是否发生感染、炎症程度提供了可视化依据，避免了传统检测方法的滞后性。 此外，超支化聚甘油修饰技术的应用，显著提升了水凝胶对妥布霉素等抗菌药物的负载能力 ...

来源：环球时报 【环球时报综合报道】俄罗斯共有34处联合国教科文组织认定的遗产地，不仅包括莫斯科克里姆林宫、 卡累利阿的基日岛木结构教堂等文化地标，还涵盖了许多独一无二、未经人工雕琢的自然景观与地貌。 科米原始森林 这是欧洲面积最大、未经人类开发的针叶林区，覆盖面积超过300万公顷。科学家对北乌 拉尔地区独特的林木、沼泽、河流与湖泊已持续研究超过50年。 贝加尔湖 作为世界最古老、最深的湖泊，贝加尔湖储存了全球约20%的淡水资源，其丰富的动植物与 独特的生态系统，为科学家追溯地球生命演化提供了重要依据。 弗兰格尔岛自然保护区 海象聚集地、北极熊巢穴、灰鲸迁徙走廊、逾50种鸟类的繁殖区——这片位于 北冰洋的自然保护区以其惊人的生物多样性著称。 阿尔泰金山 1998年，西伯利亚阿尔泰山脉风景最为壮丽的区域以此名称列入名录。这片山区是西西伯 利亚最大河流——鄂毕河与额尔齐斯河的发源地。阿尔泰最具代表性的景观同样受教科文组织保护。 西高加索山 这是欧洲一片未经人类涉足的广袤山域。在30万公顷的土地上，孕育着大量特有的动植物 群落。 库尔斯沙嘴 这条长98公里的狭长沙洲是加里宁格勒州著名的自然标志。 中锡霍特-阿林山脉 ...

Group 1 - A recent advertisement in the Shanghai subway featuring a model with six fingers has sparked online discussions, leading to speculation that the image was generated by AI [1][4] - The advertising company has been contacted and stated they will verify the situation and make necessary corrections if issues are confirmed [3] - Many users have criticized the overall quality of AI-generated images in the advertisements, describing them as having an unsettling "uncanny" appearance [4][6] Group 2 - Observations from users indicate that AI-generated human images often exhibit typical flaws such as blurred facial details and unnatural lighting transitions, contributing to a sense of discomfort [10] - The concept of the "uncanny valley" explains why people may feel repulsed by AI-generated images that are almost human-like but contain slight imperfections, leading to a significant drop in likability [10] - Examples from popular culture, such as the character Alita from the movie "Alita: Battle Angel," illustrate how near-realistic representations can evoke negative reactions due to minor discrepancies in appearance [10]

Core Insights - Over 10% of Japanese manga artists and illustrators experienced income decline due to the rise of generative AI, with 88.6% of respondents perceiving it as a threat to their livelihoods [1][5] - The survey, conducted by the Freelancers Union of Japan, collected 24,991 valid responses, highlighting significant concerns within the creative industry regarding generative AI [1][5] Group 1: Income Impact - 12% of respondents directly linked their income decline to generative AI, with 9.3% reporting a decrease of 10%-50% and 2.7% experiencing a drop of over 50% [1][5] Group 2: Industry Changes - The widespread use of generative AI has altered the industry landscape, with clients often assuming creators will use AI, leading to shorter delivery times and lower service fees [5] - Some clients are directly using AI-generated content, resulting in traditional creators losing significant orders [5] Group 3: Attitudes Towards AI - 62.9% of respondents stated they would not use generative AI now or in the future, while 21.4% would use it for brainstorming and creative concepts [5] - 9.3% utilize AI for repetitive tasks, 4.1% for sketching and drafts, and only 2.8% would use AI for completing parts or all of their work [5] Group 4: Copyright and Reputation Risks - 77.8% of respondents have witnessed peers facing plagiarism accusations or being suspected of using AI, leading to defamation or online attacks [5] - 14.5% of respondents have personally experienced such situations [5] Group 5: Regulatory Demands - There is a strong consensus among creators for legislative action, with 92.8% advocating for mandatory disclosure of copyrighted works used in AI training to protect creators' rights [5]

Core Viewpoint - The near-Earth orbit has become one of the most crowded and dangerous areas in the solar system, with over 12,000 active satellites and countless pieces of space debris posing significant risks to space activities [3][10]. Group 1: Current Situation - The near-Earth orbit, located approximately 200 to 2000 kilometers above the Earth's surface, is the most active area for human space activities, particularly between 400 to 600 kilometers where many satellites, including China's space station and the U.S. Starlink satellites, operate [6]. - Satellites in this region travel at nearly 8 kilometers per second, with distances between them potentially as close as several dozen kilometers, increasing the risk of collisions [6][10]. Group 2: Collision Risks - A collision in this crowded space could result in catastrophic outcomes, with two satellites potentially exploding into thousands of high-speed fragments, each acting like a deadly projectile [10]. - The creation of new debris could trigger a domino effect, leading to a lethal ring of space debris around Earth, which could ultimately block humanity's access to space [10]. Group 3: Mitigation Efforts - In response to these threats, China has initiated the "Star Eye" space awareness constellation plan, which aims to establish a "space traffic management" system [10]. - This system consists of 156 satellites designed to monitor and track tens of thousands of objects in space, creating real-time digital records for each satellite and debris, and providing collision risk calculations and warnings to facilitate evasive maneuvers [10]. Group 4: Global Cooperation - Establishing a unified global "space traffic regulation" is deemed essential for ensuring the safety of thousands of satellites and protecting shared human interests in space [13]. - Any uncontrolled collision could jeopardize humanity's aspirations in space, highlighting the need for collaborative efforts in space governance [13].

Group 1 - The core issue is a malfunction in Gmail's automatic filtering system, leading to improper categorization of spam and promotional emails, which cluttered users' inboxes [1][3] - Users reported delays in email reception, with some unable to receive two-factor authentication codes, affecting their ability to log into applications and websites [1][3] - Google's filtering mechanism is designed to separate unwanted emails from the main inbox, but the recent failure has disrupted this experience, resulting in warnings about potentially harmful emails [3] Group 2 - Google has acknowledged the issues related to email classification errors and reception delays, and is actively working on a fix to restore normal email service [3]

截至目前，NASA官方尚未对这一消息予以正式确认。不过，公开信息显示，NASA在飞行模拟器系统 搭建中，一贯采用自主研发软件与成熟商业软件相结合的模式。其中，英特尔旗下的Wind River Simics、MathWorks的MATLAB/Simulink等第三方软件已在其动力学建模等关键环节得到广泛应用，为 模拟系统的稳定性和专业性提供了技术支撑。 据了解，CapFrameX基于英特尔开源项目PresentMon开发而成，具备实时图表、性能曲线及直方图等多 元分析功能，能够精准捕捉显卡与应用程序的运行表现，凭借其专业性和易用性，已成为全球众多电脑 玩家、硬件评测机构及技术爱好者常用的性能测试工具。 NASA的飞行模拟器在飞行员训练体系中占据重要地位。这些模拟器均为定制化设计制造，力求1:1还原 真实飞船驾驶舱的操作环境，油门、起落架等关键系统的操作逻辑与真实设备保持高度一致。通过数千 小时的模拟训练，飞行员能够形成牢固的肌肉记忆，为实际飞行中的高效操作、精准判断奠定基础，有 效降低因频繁查看仪表带来的操作风险。 目前，CapFrameX的美国政府软件审批流程正在推进中，若审批顺利通过，这款在消费级市场广受认 ...

上周，神二十一乘组按计划开展了神舟二十号飞船返回前的各项准备工作。飞船返回前要忙些啥？一起 来看！（来源：中国载人航天） 来源：央视新闻客户端 ...