数字孪生技术
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黄河水沙不等式,这样求解——三十一次调水调沙,把超三十五亿吨黄河泥沙送入大海
Ren Min Ri Bao· 2025-10-24 00:23
Core Viewpoint - The 20th Central Committee of the Communist Party of China emphasizes accelerating the comprehensive green transformation of economic and social development to build a beautiful China. The Yellow River's water and sediment regulation is highlighted as a successful integration of traditional wisdom and modern technology in ecological practices [1]. Group 1: Water-Sediment Relationship Management - Since 2002, the Yellow River has conducted 31 water and sediment regulation operations, sending over 3.5 billion tons of sediment to the sea, significantly improving flood discharge and sediment transport capabilities [2][8]. - The management of the water-sediment relationship is crucial for ensuring the long-term stability of the Yellow River, with a focus on regulating and controlling sediment flow through coordinated reservoir operations [2]. Group 2: Reservoir Operations and Technology - The Xiaolangdi Reservoir serves as a key component in the water-sediment regulation process, with precise scheduling to manage sediment discharge effectively [3]. - Digital twin technology is utilized to enhance the efficiency of water and sediment regulation, allowing for real-time monitoring and adjustments to water flow [4][9]. Group 3: Data and Monitoring - The integration of 5.5 billion data points into the digital twin system allows for improved forecasting and operational precision in managing the Yellow River's water and sediment dynamics [9][11]. - Continuous monitoring and data collection are essential for understanding the relationship between water-sediment changes and aquatic life, with ongoing ecological assessments being conducted [12][13]. Group 4: Ecological Impact and Biodiversity - The implementation of water and sediment regulation has led to a stable river environment, positively impacting aquatic biodiversity, including the resurgence of rare fish species [12][13]. - The Yellow River Protection Law mandates measures to minimize the impact of water-sediment regulation on aquatic habitats, highlighting the importance of ecological considerations in water management practices [12].
黄河水沙不等式,这样求解(生态治理中的中国智慧)
Ren Min Ri Bao· 2025-10-23 22:42
Core Insights - The article emphasizes the integration of ecological practices and modern technology in the management of the Yellow River, highlighting the importance of water-sediment regulation for sustainable development and ecological restoration [2][3]. Group 1: Water-Sediment Regulation - Since 2002, the Yellow River has conducted 31 water-sediment regulation operations, transporting over 3.5 billion tons of sediment to the sea, significantly improving flood discharge and sediment management capabilities [3][8]. - The regulation process involves coordinated operations among multiple reservoirs, primarily focusing on the Xiaolangdi Reservoir, which serves as a key control point for sediment management [4][5]. Group 2: Technological Integration - The implementation of digital twin technology has enhanced the efficiency of water-sediment regulation, allowing for real-time monitoring and precise control of water flow and sediment discharge [9][10]. - The Xiaolangdi management center utilizes advanced data analytics and monitoring systems, including drones and numerous sensors, to optimize reservoir operations and ensure effective sediment management [9][10]. Group 3: Ecological Considerations - Recent studies indicate that water-sediment regulation has positively impacted aquatic ecosystems, with an increase in fish species diversity observed in the Yellow River basin [12][13]. - The Yellow River Protection Law emphasizes the need to minimize ecological impacts during water-sediment regulation, leading to the development of comprehensive monitoring systems to assess the relationship between sediment dynamics and aquatic life [12][13].
三十一次调水调沙,把超三十五亿吨黄河泥沙送入大海 黄河水沙不等式,这样求解(生态治理中的中国智慧)
Ren Min Ri Bao· 2025-10-23 21:54
Core Viewpoint - The 20th Central Committee of the Communist Party of China emphasizes accelerating the comprehensive green transformation of economic and social development to build a beautiful China [1] Group 1: Water-Sediment Relationship Management - The Yellow River's sediment management is crucial for maintaining its flow and preventing sediment accumulation, which has historically reduced reservoir capacity and raised riverbeds [2] - Since 2002, the Yellow River has conducted 31 water-sediment regulation operations, sending over 3.5 billion tons of sediment to the sea, significantly improving flood discharge and sediment transport capabilities [2][8] Group 2: Reservoir Coordination and Digital Technology - The Xiaolangdi Reservoir serves as a key component in the coordinated management of water and sediment along the Yellow River, enhancing the efficiency of sediment removal [3][4] - Digital twin technology is utilized to monitor and control water flow, with real-time adjustments made to optimize sediment flushing, exemplified by a flow rate adjustment to 2,500 cubic meters per second, three times the usual discharge [4][9] Group 3: Data-Driven Decision Making - The integration of 5.5 billion data points into a digital twin model of the Yellow River enhances predictive accuracy and operational efficiency in water-sediment management [9][11] - The model allows for the simulation of water-sediment dynamics, enabling proactive adjustments to management strategies based on real-time data [10][11] Group 4: Ecological Considerations - Research is ongoing to understand the relationship between water-sediment dynamics and aquatic life, with measures being taken to minimize ecological impacts during sediment management operations [12] - The introduction of advanced monitoring equipment aims to reveal the interactions between sediment changes and fish populations, contributing to biodiversity conservation efforts [12][13]
335处大中型灌区为广东夺取秋粮丰收提供水利保障
Zhong Guo Jing Ji Wang· 2025-10-21 07:57
Core Insights - Guangdong province has significantly improved its agricultural irrigation infrastructure, providing 5.75 billion cubic meters of irrigation water to 13.237 million acres, enhancing water security for autumn grain harvests [1][2] - The effective irrigation area has increased from 68% in 2020 to 81% currently, exceeding the "14th Five-Year Plan" target of 53.5% [1][2] - The province has implemented a comprehensive irrigation development plan, focusing on modernizing large and medium-sized irrigation districts [2][3] Investment and Infrastructure - Guangdong has allocated 407 million yuan for the modernization of 39 large and medium-sized irrigation projects, which will restore and improve irrigation for 813,100 acres [2] - The total investment for the modernization of the Lighthouse Basin's irrigation projects is 792 million yuan, with 453.09 kilometers of channels constructed or renovated [5] Management and Efficiency - The province has established a management evaluation system for irrigation districts, focusing on organization, water management, engineering maintenance, and funding [3] - The effective utilization coefficient of irrigation water has reached 0.538, surpassing the target of 0.535 [1][3] Technological Integration - The integration of information technology in irrigation management has been emphasized, with digital and smart irrigation practices being implemented to enhance water efficiency [4][7] - The use of digital twin technology in the Enping Xikeng Reservoir irrigation district has led to improved irrigation management and increased crop yields [7] Regional Developments - In the Han River East Guangdong irrigation district, approximately 87 million cubic meters of water were supplied for spring irrigation, covering over 330,000 acres [6] - The Nanhua Basin has achieved 100% completion of the late rice planting plan, with a total of 32.64 million cubic meters of water supplied [4][7]
南通市总工会创新型高技能人才培育驶入“快车道”
Xin Hua Ri Bao· 2025-10-20 23:34
Core Insights - Nantong's workforce development initiatives are gaining recognition, with achievements in competitions and awards highlighting the city's commitment to high-skill talent cultivation in the AI era [1][2][3] Group 1: Workforce Development Initiatives - Nantong City Federation of Trade Unions is implementing a three-pronged approach: precise competitions, specialized training, and innovative training camps to develop a skilled workforce adept in intelligent technology and innovation [1] - The "Artificial Intelligence+" learning initiative launched in May aims to empower workers through online and offline training, with incentives such as completion rewards and random draws to encourage participation [1] Group 2: Skills Competitions and Achievements - A multi-level, practical skills competition platform has been established, with recent events including a green low-carbon equipment manufacturing competition featuring 190 enterprise workers and 71 vocational students [2] - Nantong's representatives excelled in various competitions, including winning the team first prize in the Long Triangle Shipbuilding and Marine Engineering Draftsman Skills Competition and achieving top positions in the Jiangsu Province Digital Capability Competition [2] Group 3: Focus on AI and Innovation - New projects targeting AI, high-end equipment, and modern home textiles are set to launch, aimed at fostering innovation among technical backbones and model workers in specialized enterprises [3] - The systematic cultivation of high-quality industrial talent is being emphasized, with a focus on integrating AI technology into practical applications within factories and workshops [3]
赋予“灵魂”的教育机器人,AI数字伙伴如何破解个性化学习难题?
机器人大讲堂· 2025-10-19 04:03
Core Insights - The article discusses the challenges faced by educational robots, including limited availability, restricted interaction time, and lack of personalization, which leads to a significant decline in student interest within 1-2 months [1]. Group 1: Challenges in Educational Robotics - Educational robots enhance classroom engagement but are often expensive and limited in number, leading to students sharing them [1]. - The interaction with these robots is confined to classroom hours, resulting in a lack of continuous learning opportunities [1]. - A study indicates that approximately 60% of students lose interest in educational robots after 1-2 months, highlighting the issue of short-term interest decay [1]. Group 2: Proposed Solutions - A research team from Taiwan has introduced an "AI Personalized Robot Framework" that pairs each robot with an AI digital partner to enhance student learning outcomes and engagement [2]. - The framework is based on digital twin technology and large language models (LLMs) to ensure continuous connection and dynamic responses [3]. Group 3: Framework Architecture - The framework consists of three layers: - Infrastructure layer with modular design connecting physical robots to cloud LLM services for scalability [4]. - Data interaction layer that records and analyzes student learning behaviors and preferences to create personalized digital profiles [4]. - Application performance layer allowing students to interact with digital partners via mobile devices, with physical robots serving as their tangible representation [4]. Group 4: Implementation of Personalized Learning Mechanism - The learning model includes two interconnected phases: - An extracurricular preparation phase where students interact with digital partners, earning virtual currency to customize their partners [5]. - A classroom presentation phase where the digital partner's "soul" is transferred to a shared physical robot, enhancing the learning experience [8]. Group 5: Empirical Research and Results - A quasi-experimental study was conducted with 90 students divided into three groups to evaluate the effectiveness of the AI personalized robot system [9]. - After ten weeks, results showed that the experimental group using the AI personalized robot system had significantly better post-test scores, with an effect size of 0.21, indicating substantial educational value [11]. - The experimental group also demonstrated higher levels of ownership and engagement, with increased participation in extracurricular activities compared to the other groups [12][14]. Group 6: Practical Implications - The research provides a feasible path for the large-scale application of educational robots, allowing schools to implement personalized education within limited budgets [14]. - The modular design of the framework allows for adaptability across various subjects, making it applicable in language learning, STEM education, and vocational training [14].
靠近泉水敏感区,怎样修建地铁?(美丽中国)
Ren Min Ri Bao· 2025-10-14 22:12
Core Viewpoint - The Jinan Metro Line 4, which is the first subway line near the sensitive spring area in Jinan, Shandong Province, has entered trial operation and is expected to open by the end of the year. The line has been designed to avoid sensitive spring areas and minimize the impact on underground water resources, providing a reference for urban rail transit construction in karst terrain cities [2][5][13]. Group 1: Project Overview - Jinan Metro Line 4 has a total length of 40.3 kilometers and is located only 1.4 kilometers from Baotu Spring and 1.5 kilometers from Black Tiger Spring [6]. - The line's construction has successfully navigated the critical water supply channels of the Baotu Spring area, marking a significant step in Jinan's metro development [5]. Group 2: Technical Innovations - A comprehensive underground three-dimensional model has been developed based on over 60 years of hydrological data and recent exploration data, allowing for a clearer understanding of the underground water system [8]. - The project utilizes advanced technologies such as "transient electromagnetic—geological drilling—cross-hole CT" for geological surveys, enhancing the accuracy of underground assessments [8]. Group 3: Environmental Considerations - The design and construction teams have prioritized spring water protection by elevating the station depth and implementing water passage structures to maintain the dynamic balance of underground water [10][11]. - The construction process has included the use of new permeable filling materials and water recycling techniques, achieving a 90% rate of returning extracted groundwater to its original aquifer [12][14]. Group 4: Challenges and Solutions - The construction faced challenges due to the complex geology of the karst area, with nearly 300 caves identified along a 1-kilometer stretch, necessitating advanced geological forecasting and customized equipment for tunneling [13]. - The project has successfully implemented a green construction approach, recycling water and materials during the construction process [14]. Group 5: Monitoring and Results - Throughout the construction, 64 long-term groundwater monitoring points have been established to ensure real-time monitoring of groundwater levels and quality [14]. - As of May 16, the water levels of Baotu Spring and Black Tiger Spring have risen, indicating the successful integration of metro construction with spring water protection [14].
谈崩了,钢铁终于炼成!
Sou Hu Cai Jing· 2025-10-11 11:44
Core Viewpoint - China has announced the cessation of iron ore imports from Australia's BHP priced in USD, marking a significant shift in the global commodity market and reflecting the steel industry's newfound confidence through digital transformation and resource management [1][6]. Industry Challenges and Responses - Historically, China, as the largest iron ore importer, faced challenges due to a lack of unified negotiation and pricing systems, leading to a situation where increased purchases resulted in greater losses [3]. - In 2024, Australia exported nearly 1 billion tons of iron ore, generating $20 billion in profits, while Chinese steel companies had an average sales profit margin of only 0.71% [3]. - To address these issues, China has invested in acquiring stakes in mining companies, such as a 14.99% stake in Rio Tinto, and is developing domestic resources through initiatives like the "Cornerstone Plan" to enhance domestic ore and scrap steel utilization [3]. Technological Advancements - The introduction of digital twin technology by companies like Tupu has transformed traditional steel production processes, addressing issues such as data silos and inefficiencies in raw material management [4][5]. - Tupu's HT for Web engine integrates data from various processes, allowing for real-time monitoring and management of raw materials, which enhances inventory management and mitigates risks associated with international supply fluctuations [4]. Operational Efficiency - In the ironmaking process, Tupu's technology provides real-time alerts for temperature and pressure anomalies, enabling timely adjustments to maintain optimal conditions and prevent operational disruptions [4]. - The quality control system developed by Tupu reduces waste rates by over 15% by monitoring and correcting deviations in real-time during the steelmaking process [5]. - The integration of logistics tracking and management dashboards has improved operational efficiency, reducing transportation times by 20% and overall operational costs by 8% for companies like Fangda Jiu Steel [5]. Future Outlook - With the upcoming production of the Western Simandou mine, expected to supply 120-150 million tons annually, and a projected scrap steel recovery of 250 million tons in 2024, the Chinese steel industry is poised for a significant transformation [6]. - The shift from being a passive buyer to an empowered player in the iron ore market, coupled with advancements in digital twin technology, positions the Chinese steel industry to lead a global transformation towards smarter and more efficient production practices [6].
东方电气亮相央视2025年中秋晚会
Zhong Guo Neng Yuan Wang· 2025-10-09 10:10
Core Viewpoint - The 2025 Mid-Autumn Festival Gala, hosted by China Central Television, showcased the industrial beauty of Dongfang Electric Group, highlighting its technological advancements and artistic integration in a global presentation [1] Group 1: Company Highlights - Dongfang Electric Group, recognized as a "national team" in equipment manufacturing, presented a unique perspective at the gala, emphasizing the fusion of technology and art [1] - The company has established rigorous production standards in high-precision turbine component manufacturing, ensuring reliability and precision in every dimension [3] - The transformation from the old Hanwang factory site to modern facilities in Deyang illustrates the company's resilience and leadership in the industry [5] Group 2: Technological Innovations - Dongfang Electric has implemented digital twin technology in its heavy machinery manufacturing, achieving real-time visibility and efficient scheduling, which significantly enhances production capabilities [7] - The introduction of a green and efficient welding digital workshop has led to a 300% increase in per capita efficiency, with a focus on zero defects, emissions, and deformations [8] - The first unmanned workshop for blade processing and dark production lines has resulted in a 650% increase in per capita efficiency and a 100% quality pass rate, showcasing the company's commitment to innovation and smart manufacturing [8]
焦点访谈|技能如何照亮前程?这场全国大赛给出答案
Yang Shi Wang· 2025-09-29 21:58
Core Viewpoint - The third National Skills Competition, held from September 19 to September 23 in Zhengzhou, represents the highest level of vocational skills in China, featuring 3,420 top competitors from 35 delegations across 106 competition projects, emphasizing the theme "Skills Illuminate the Future" [1] Group 1: Competition Highlights - The competition's project settings closely align with national strategic needs and industry development, with 15 new projects related to emerging industries such as intelligent manufacturing and artificial intelligence compared to the previous edition [3] - Over 50% of the national competition projects focus on new fields like intelligent manufacturing, high-end equipment, digital technology, and renewable energy, showcasing a strong technological emphasis [3][5] - The event highlights the increasing presence of highly educated "new craftsmen," with 33% of participants holding a bachelor's degree or higher, indicating a trend towards higher educational qualifications in vocational skills [5][7] Group 2: Technological Integration - The competition showcases the latest trends in the integration of technology and skills, with projects focusing on artificial intelligence, industrial internet, and integrated circuits [5] - New technologies such as digital twin technology are being incorporated into talent training programs, reflecting the shift from traditional manufacturing to intelligent manufacturing [5][9] - Traditional projects have also evolved, with new technical requirements introduced, such as the use of environmentally friendly water-based paints in automotive painting competitions [9][11] Group 3: Skills Evaluation and Opportunities - The competition serves as a concentrated evaluation of high-skilled talent, with participants required to possess both theoretical knowledge and practical experience to meet the demands of high-tech industries [9] - The event emphasizes a dual value of "selection and incentive," allowing award-winning participants to advance in their professional skill levels, thus encouraging more youth to pursue skill-based careers [13][15] - Various activities, including skill forums and training sessions, were held during the competition, promoting a comprehensive skill ecosystem that connects industry, education, and evaluation [13][15]