晶体几乎无处不在，从电视屏幕、烟雾报警器到超声波设备和声呐系统，它们独特的光学和电学特性支 撑着现代科技的发展。但在传统的生长方法中，晶体往往在随机时间和位置生成，难以保证质量与一致 性，这一不确定性长期制约着高性能器件的制造。 为解决这一难题，团队借助超快激光技术，首次实现了在纳米尺度上"绘制"晶体。他们选择在实验中生 成卤化铅钙钛矿晶体，这是一类在LED、太阳能电池及医学成像中具有重要应用的材料。 美国密歇根州立大学团队发现了一种"绘制"晶体的新方法。这种全新的激光绘晶技术，可在指定时间和 位置"按需"生成晶体，为太阳能电池、LED照明及医学成像等领域提供更精准的材料制造手段。这一突 破性成果发表于最新一期《ACS Nano》杂志。 激光绘晶方法类似于用激光在金属或木材上雕刻图案，不仅能提升晶体制造的可控性，也为能源、电子 和量子技术等领域提供了新的研究手段。同时，也帮助化学家进一步理解晶体形成这一长期难解的过 程。 通过这种方法，团队可以让晶体在精确的时间和位置生长。他们能坐在显微镜前亲眼观看晶体诞生的第 一瞬间，并能控制它的成长方向。接下来，他们计划进一步使用多种颜色的激光"绘制"更加复杂的晶体 图案 ...

Core Viewpoint - The continuous rainfall in the Huanghuaihai region, particularly in Henan and Shandong, has led to increased risks of mold growth on corn, causing delays in harvesting and raising public concerns about the quality of corn in the market [1][2]. Group 1: Mold Risks and Detection - Corn in humid environments may develop various molds, but not all are harmful; toxic molds can be effectively controlled through professional methods [1]. - The presence of toxic molds requires specific conditions, and not all infected corn will exceed toxin limits [1]. - A three-step method to identify bad corn includes: 1. Visual inspection for color and texture changes 2. Smelling for musty or sour odors 3. Tactile examination for stickiness or powdery texture [1]. Group 2: Public Assurance and Quality Control - The corn currently being harvested in the Huanghuaihai region is primarily feed corn, which is different from fresh corn consumed by the public [2]. - Feed corn undergoes multiple inspections before entering production, ensuring that only compliant corn is used for livestock feed, alleviating public concerns [2]. - Consumers can safely consume fresh corn purchased through regular channels, as the risk of mold has been effectively managed with ongoing harvesting and drying operations [2].

研究中甚至捕捉到了两种奇特的"模式"：翻滚模式中，章鱼把身体缩成一团，后腕足在身下像传送带一 样依次推动，滚着前进，仿佛在海底打滚。"踩高跷"模式中，它会将后腕足笔直向下延伸，像撑杆一样 把整个身体抬离海底，然后一步步"走"起来。 最近，一项发表于《科学报告》的最新研究给出了答案：章鱼能让任意腕足完成任何任务，且还会"分 工"，用特定的腕足干特定的活。这听起来或许不稀奇，但在无脊椎动物中，这种被称为"功能特化"的 行为极为罕见，一般是灵长类动物专属。 这种八爪分工的策略，可能是章鱼在进化中形成的高效生存密码——前腕足和后腕足互不干扰，各司其 职，实现感知与行动既完美分离又高效协同，在深海的寂静舞台上，演绎出无脊椎生命中顶尖的智能与 优雅。 在深海，有一种生物被认为是海洋中智者的化身。它没有骨骼，却能灵活地攀爬、挖掘、伪装，甚 至还会"踩高跷"走路。它就是章鱼，动物界最令人惊叹的"多任务处理大师"。 数据显示，前面四条腕足的使用率高达64%，而后四条只占36%。这种偏好并非随机——前腕足更像 是"手"，常被用来探索环境、触摸物体、搜寻猎物；而后腕足则更像是"脚"，更多承担起移动身体的重 任。 长期以来，科学家一 ...

Core Insights - Shanxi Province is accelerating agricultural technology innovation and transformation, with recent events showcasing 8 market-potential technological achievements, totaling 5.7 million yuan in contracts, including a new apple variety valued at 2 million yuan [1] - The provincial government is actively promoting technology transfer as a bridge between scientific innovation and industrial development, focusing on key areas such as low-carbon energy transition and advanced manufacturing [2] - A new ecosystem for technology transfer is being established, integrating government, academia, research institutions, and financial entities to enhance the efficiency of technology commercialization [4][5] Group 1: Technology Transfer Events - Recent technology roadshows in Shanxi have successfully connected research outcomes with market needs, facilitating partnerships and funding opportunities for various projects [6][7] - The "first use, then pay" model was introduced to reduce risks associated with technology transfer, enhancing collaboration confidence among enterprises [8][9] Group 2: Collaboration and Partnerships - The events have attracted participation from universities, research institutes, and local enterprises, fostering a collaborative environment for technology application and commercialization [2][4] - Specific projects, such as the "intelligent reconstruction of industrial measurement and control networks," have already initiated preliminary cooperation agreements with key manufacturing enterprises [6] Group 3: Government Initiatives - The Shanxi Provincial Science and Technology Department is prioritizing technology transfer in its strategic initiatives, aiming to create a robust support system for innovation and industrial integration [5][9] - The government is focused on building a favorable ecosystem that encourages innovation and supports the transition of high-quality technological achievements from laboratories to production lines [9]

Group 1 - The total output value of the construction industry in Shaanxi Province is expected to exceed 1 trillion yuan in 2024, with the intelligent construction industry chain's output reaching 47.389 billion yuan, a year-on-year increase of 12.17% [1] - A working mechanism has been established to promote the intelligent construction and new-type building industrialization chain, which includes "chain leader coordination + special class promotion + chain master guidance + expert support" [1] - Regions such as Xi'an, Hanzhong, and Yulin have developed a "1+6+N" billion-level construction industry system and four characteristic sub-chains, effectively addressing bottlenecks in the industry chain [1] Group 2 - Shaanxi has included urgently needed technologies for intelligent construction in provincial major science and technology projects, enhancing data-driven approaches and forward-looking layouts to inject continuous momentum into industry transformation and upgrading [2] - Prefabricated buildings, as an important carrier of intelligent construction, have rapidly developed in Shaanxi, with new prefabricated building area reaching 9 million square meters, accounting for approximately 38% of new construction [2]

Core Insights - The article highlights the innovative "light-touch" construction method employed by China State Construction Engineering Corporation (CSCEC) to build a 100 MW photovoltaic project in the ecologically sensitive area of Liangshan, Sichuan, which minimizes environmental impact while maximizing efficiency [1][2]. Group 1: Construction Techniques - The "light-touch" construction method involves precise planning using Beidou positioning and drone remote sensing to determine the foundation points and installation paths for solar panel supports [2]. - Micro-pile technology is utilized for the solar panel supports, eliminating the need for large-scale concrete pouring, thus preventing excessive excavation and blind construction [2]. - The project employs existing terrain for access roads and incorporates drone transportation to minimize vehicle impact on the grassland [2]. Group 2: Environmental Impact - The "light-touch" approach has reduced on-site construction volume by over 70%, significantly lowering the environmental impact and preventing soil erosion [2]. - The construction method preserves the original topography of the plateau, allowing local wildlife, such as yaks, to coexist harmoniously with the solar installations [2]. Group 3: Future Implications - The successful implementation of the "light-touch" green construction model in various regions, including Sichuan, Yunnan, and Gansu, provides a replicable solution for green infrastructure in ecologically sensitive areas [2]. - The promotion of this construction model is expected to contribute to achieving China's dual carbon goals [3].

随着天气转凉，季节性过敏进入高发期，不少"过敏星人"出现眼睛红肿、打喷嚏、皮肤瘙痒等症 状。与此同时，网络上"益生菌能抗过敏"的说法热传，电商平台上主打"调节免疫力""改善过敏体 质"的"抗过敏"益生菌销量节节攀升。这类产品价格从几十元到数百元不等，部分甚至宣称"7天改善鼻 敏""3天改善肠道"。 那么，益生菌能否通过类似或其他方式抗过敏？ 胡启文认为，从理论层面来看，某些特定的益生菌菌株或许可以通过调节人体免疫系统、改善肠道 屏障功能等方式，间接发挥一定的抗过敏作用。"肠道是人体重要的免疫器官，肠道菌群平衡与免疫系 统正常运转密切相关，这是益生菌可能与过敏产生关联的核心逻辑。"他说。 不过，从实际研究来看，益生菌抗过敏机制尚未完全阐明，且缺乏足够的循证医学支持。陆军军医 大学基础医学院教授王莉表示，近年来，尽管针对益生菌与过敏的研究不断增多，但由于益生菌种类繁 多、过敏性疾病类型复杂、个体差异显著，相关研究结果并不一致。 王莉举例说，有的研究显示某些益生菌可以降低过敏性鼻炎患者打喷嚏的频率，但也有多项对照试 验表明益生菌对过敏症状的缓解作用微乎其微，且即使有效果，也需要长期服用才能显现，远非商家宣 称的"3 ...

近期，河南、山东等黄淮海地区受持续阴雨影响，累计降雨量较常年明显偏多，导致玉米收割延 迟、田间滞留时间增加，霉菌滋生风险随之上升。"市场上的玉米会不会发霉？如何发现坏玉米？"不少 网友在社交平台提问。针对公众关心的问题，科技日报记者日前采访了相关专家。 "玉米在潮湿环境中可能滋生多种霉菌，但它们并非都有害，且有毒霉菌的污染可通过专业手段有 效控制。"农业农村部环境保护科研监测所研究员姚彦坡介绍，比如色二孢穗腐霉菌，它虽会导致玉米 籽粒变色、品质下降，但不会产生毒素。部分黑孢菌、枝孢菌也属于此类。 第一是看一看。正常玉米颗粒饱满、颜色鲜亮，发霉玉米可能有霉斑，颜色发暗、发灰，甚至出现 绿、黑、白等霉点，有的还会粘连在一起。第二是闻一闻。新鲜玉米有自然的谷物清香，发霉玉米会有 霉味、酸味，甚至发苦的味道。第三是摸一摸。正常玉米干燥爽手，发霉玉米可能发黏，有的还会有粉 末感。 "不过，大家不必过于担心。当前黄淮海地区集中收割的玉米，大多属于饲料用玉米，与日常公众 食用的鲜食玉米分属不同品类。"姚彦坡进一步说，这些饲料用玉米在进入生产环节前，会经过多道检 测。只有符合标准的玉米，才能用于家禽家畜饲料生产，公众无需因此 ...

Core Insights - Jiangsu Youao Intelligent Technology Co., Ltd. exports over 95% of its products, achieving a sales revenue of 820 million yuan in export business for the first half of the year, representing a year-on-year growth of 10.38% [1] - The company holds over 1,100 patents and invests 3.5% of its revenue annually in R&D, which supports its innovation and market presence [1] Group 1: Innovation and Product Development - The company has developed a wall-mounted air conditioner specifically for the European and American markets, which has been well-received due to its design that eliminates the need for an external unit [2] - Jiangsu Youao has implemented noise reduction technology, achieving a sound level of 30 decibels for its dehumidifiers, catering to the high noise sensitivity of European consumers [3] - The company follows a "sell one, develop one, reserve one" strategy, allowing for rapid product development and customization, with a turnaround time of less than six months for new products [3] Group 2: Market Strategy and Sales Network - Jiangsu Youao's products, including wall-mounted air conditioners and upright window units, have achieved the highest market share in the U.S., Germany, South Korea, and France [4] - The company entered the cross-border e-commerce space in 2018, initially facing challenges in product positioning and market understanding, but later adjusted its strategy to improve competitiveness [6] - The annual order volume on cross-border e-commerce platforms has reached 120,000 units, with sales revenue of 120 million yuan from January to August this year, marking a year-on-year growth of 31.89% [7]

Core Viewpoint - Xinjiang is transforming its arid landscape into a hub for renewable energy, leveraging its natural advantages to become a national energy resource strategic support base, with rapid development in the new energy sector [1] Group 1: Renewable Energy Development - Xinjiang has initiated a new power model focused on wind and solar energy, supported by ten wind zones and five solar zones [1] - The region's renewable energy equipment manufacturing industry is diversifying, with an accelerated improvement in the industrial chain, including products like silicon wafers, photovoltaic modules, wind turbines, and blades [1] Group 2: Energy Production and Distribution - Currently, for every 3 kilowatt-hours of electricity transmitted from Xinjiang, 1 kilowatt-hour is generated from clean energy sources such as wind and solar [1] - Xinjiang has exported over 2,700 billion kilowatt-hours of green electricity, contributing significantly to the national energy supply [1]