As a key node of modern transportation network,the informationization management of road tunnels is crucial to ensure the operation safety and traffic efficiency.However,the existing tunnel vehicle modeling methods ge...As a key node of modern transportation network,the informationization management of road tunnels is crucial to ensure the operation safety and traffic efficiency.However,the existing tunnel vehicle modeling methods generally have problems such as insufficient 3D scene description capability and low dynamic update efficiency,which are difficult to meet the demand of real-time accurate management.For this reason,this paper proposes a vehicle twin modeling method for road tunnels.This approach starts from the actual management needs,and supports multi-level dynamic modeling from vehicle type,size to color by constructing a vehicle model library that can be flexibly invoked;at the same time,semantic constraint rules with geometric layout,behavioral attributes,and spatial relationships are designed to ensure that the virtual model matches with the real model with a high degree of similarity;ultimately,the prototype system is constructed and the case region is selected for the case study,and the dynamic vehicle status in the tunnel is realized by integrating real-time monitoring data with semantic constraints for precise virtual-real mapping.Finally,the prototype system is constructed and case experiments are conducted in selected case areas,which are combined with real-time monitoring data to realize dynamic updating and three-dimensional visualization of vehicle states in tunnels.The experiments show that the proposed method can run smoothly with an average rendering efficiency of 17.70 ms while guaranteeing the modeling accuracy(composite similarity of 0.867),which significantly improves the real-time and intuitive tunnel management.The research results provide reliable technical support for intelligent operation and emergency response of road tunnels,and offer new ideas for digital twin modeling of complex scenes.展开更多
Standardizers are the most active element in standards development,and education is the core of standardization talent cultivation.To enrich students'experience in practical standardization work,the International ...Standardizers are the most active element in standards development,and education is the core of standardization talent cultivation.To enrich students'experience in practical standardization work,the International Standardization Youth Star Competition 2024 was held in Beijing on November 10,in which students selected from universities and colleges across China prepared proposals and drafted standards with four different themes.The competition attracted the attention of both academia and industry.展开更多
Infected necrotizing pancreatitis(INP)remains a life-threatening complication of acute pancreatitis.Despite advancements such as endoscopic ultrasound(EUS)-guided drainage,lumen-apposing metal stents,and protocolized ...Infected necrotizing pancreatitis(INP)remains a life-threatening complication of acute pancreatitis.Despite advancements such as endoscopic ultrasound(EUS)-guided drainage,lumen-apposing metal stents,and protocolized step-up strate-gies,the clinical practice remains heterogeneous,with variability in endoscopic strategies,procedural timing,device selection,and adjunctive techniques contri-buting to inconsistent outcomes.This review synthesizes current evidence to contribute to a structured framework integrating multidisciplinary team decision-making,advanced imaging(three-dimensional reconstruction,contrast-enhanced computed tomography/magnetic resonance imaging),EUS assessment,and biomarker-driven risk stratification(C-reactive protein,procalcitonin)to optimize patient selection,intervention timing,and complication management.Key stan-dardization components include endoscopic assessment and procedural strate-gies,optimal timing of intervention,personalized approaches for complex pan-creatic collections,and techniques to reduce the number of endoscopic debride-ments and mitigate complications.This work aims to enhance clinical outcomes,minimize practice heterogeneity,and establish a foundation for future research and guideline development in endoscopic management of INP.展开更多
Traditional Chinese medicine(TCM) is increasingly recognized worldwide as a valuable complementary and alternative medicine. To facilitate global research and collaboration in this field, the World Health Organization...Traditional Chinese medicine(TCM) is increasingly recognized worldwide as a valuable complementary and alternative medicine. To facilitate global research and collaboration in this field, the World Health Organization(WHO) introduced the International Standard Terminologies on Traditional Chinese Medicine in 2022. This international terminology translation standard, IST 2022, goes beyond conventional translation by embracing three innovative features: 1) It reflects TCM's foundational philosophy of unity and opposition, emphasizing the interconnectedness among TCM terms during translation. This approach transcends individual term translations to explore the interrelationships among them. 2) It preserves the integrity of TCM theory by retaining transliterations for unique TCM terms that possess distinct features. 3) It employs innovative xiang(image) cognition, a concept rooted in traditional Chinese thought by helping readers grasp visual and mental imagery associated with each term. This study presents a qualitative analysis based on interviews with 11 TCM translation experts, examining their perspectives on these features and their translational preferences across the IST 2007 and 2022 versions. These findings contribute to the standardization and global harmonization of TCM terminology, advocating for clarity, precision, and the advancement of TCM in the international healthcare arena.展开更多
In the independent electro-hydrogen system(IEHS)with hybrid energy storage(HESS),achieving optimal scheduling is crucial.Still,it presents a challenge due to the significant deviations in values ofmultiple optimizatio...In the independent electro-hydrogen system(IEHS)with hybrid energy storage(HESS),achieving optimal scheduling is crucial.Still,it presents a challenge due to the significant deviations in values ofmultiple optimization objective functions caused by their physical dimensions.These deviations seriously affect the scheduling process.A novel standardization fusion method has been established to address this issue by analyzing the variation process of each objective function’s values.The optimal scheduling results of IEHS with HESS indicate that the economy and overall energy loss can be improved 2–3 times under different optimization methods.The proposed method better balances all optimization objective functions and reduces the impact of their dimensionality.When the cost of BESS decreases by approximately 30%,its participation deepens by about 1 time.Moreover,if the price of the electrolyzer is less than 15¥/kWh or if the cost of the fuel cell drops below 4¥/kWh,their participation will increase substantially.This study aims to provide a more reasonable approach to solving multi-objective optimization problems.展开更多
State Administration for Market Regulation and National Standardization Administration of China have approved the following 416 voluntary national standards and 3 voluntary national standards with amendment.
State Administration for Market Regulation and National Standardization Administration of China have approved the following 278 voluntary national standards and 3 voluntary national standards with amendment.
State Administration for Market Regulation and National Standardization Administration of China have approved the following 26 mandatory national standards and 1 mandatory national standard with amendment.
Uzbekistan Institute of Standards(UIS),founded in 1969,is the national standardization body of Uzbekistan.There are over 32,000 national standards in Uzbekistan.Last year,UIS revised the working regulations of all tec...Uzbekistan Institute of Standards(UIS),founded in 1969,is the national standardization body of Uzbekistan.There are over 32,000 national standards in Uzbekistan.Last year,UIS revised the working regulations of all technical committees,which were established in accordance with the organizational structure of ISO.At present,UIS has standardization training courses covering 54 directions,and more than 1,700 experts have received relevant training.UIS ranks the 95th in terms of the Quality Infrastructure for Sustainable Development(QI4SD)and 80th in terms of the Global Quality Infrastructure Index(GQII).It is a member of ISO and an associate member of IEC.In the UIS,40 experts have participated in the activities of various ISO technical committees,and 251 experts have participated in the discussion of IEC projects as observer members.展开更多
The European Standardization Organizations(ESOs),CEN,CENELEC and ETSI,joined forces with ENISA,the EU Agency for Cybersecurity,to host the 9th Cybersecurity Standardization Conference on March 20 in Brussels,Belgium.
To exchange experiences and progress in standardization capacity building at home and abroad,the sub-forum on capacity building and creating leadership in standardization was held on July 9.The sub-forum was hosted by...To exchange experiences and progress in standardization capacity building at home and abroad,the sub-forum on capacity building and creating leadership in standardization was held on July 9.The sub-forum was hosted by the Qingdao Municipal People’s Government and co-organized by the International Standardization Training Base(Qingdao),Qingdao University,International Standardization Outstanding Contribution Foundation,and Shandong National Standards Center of Technical Evaluation,which was expected to inject new vitality into the industrial development and provide new ideas for improving the talent cultivation system.展开更多
We review a 3d quantum gravity model, which incorporates massive spinning fields into the Euclidean path integral in a Chern-Simons formulation. Fundamental matter as defined in our previous preon model is recapped. B...We review a 3d quantum gravity model, which incorporates massive spinning fields into the Euclidean path integral in a Chern-Simons formulation. Fundamental matter as defined in our previous preon model is recapped. Both quantum gravity and the particle model are shown to be derivable from the supersymmetric 3d Chern-Simons action. Forces-Matter unification is achieved.展开更多
If you look into the EU AI Act,you will find that the requirements are specified at a very high level.This is because the details are defined elsewhere.That is what standardization is doing.If we look at the world of ...If you look into the EU AI Act,you will find that the requirements are specified at a very high level.This is because the details are defined elsewhere.That is what standardization is doing.If we look at the world of AI standardization,there are three tiers-the international tier,the European tier and the national tier.There are also AI standardization committees at all three levels.展开更多
State Administration for Market Regulation and National Standardization Administration of China have approved the following 273 national standards and 9 national standards with amendment.
China Automotive Standardization Research Institute of CATARC is specialized in the standardization research and application in the automotive industry.The secretariat of SAC/TC 114 on automobiles is held by CATARC.Up...China Automotive Standardization Research Institute of CATARC is specialized in the standardization research and application in the automotive industry.The secretariat of SAC/TC 114 on automobiles is held by CATARC.Up to now,a standards system has been established,which consists of 1,586 standards(874 sectoral standards,593 voluntary national standards,and 119 mandatory national standards).展开更多
This paper discusses the importance of standards in the fire extinguishing agent industry,and highlights the vital role of the standards in promoting technological innovation.China’s standards for fire extinguishing ...This paper discusses the importance of standards in the fire extinguishing agent industry,and highlights the vital role of the standards in promoting technological innovation.China’s standards for fire extinguishing agent products have evolved significantly,aligning with industrial development,market demands,regulatory requirements,to respond to the great impact of international competition in the industry.The paper analyzes the current state of China’s standards,including their composition and integration with industry growth,green development strategies,and international harmonization.Future development strategies for the standards framework should focus on valid period estimation,fire test model development,and raw material selection guidelines.By implementing these strategies,China’s fire protection industry can enhance product quality,contribute to public safety,and maintain a competitive edge in the global market.展开更多
State Administration for Market Regulation and National Standardization Administration of China have approved the following 35 mandatory national standards.
The 2025 International Standardization(Chilin)Forum was held in Nanjing city,East China’s Jiangsu province,on April 16 with the theme of“Towards carbon peak and carbon neutrality:international carbon footprint stand...The 2025 International Standardization(Chilin)Forum was held in Nanjing city,East China’s Jiangsu province,on April 16 with the theme of“Towards carbon peak and carbon neutrality:international carbon footprint standards driving green and low-carbon development”.展开更多
基金National Natural Science Foundation of China(Nos.42301473,42271424,42171397)Chinese Postdoctoral Innovation Talents Support Program(No.BX20230299)+2 种基金China Postdoctoral Science Foundation(No.2023M742884)Natural Science Foundation of Sichuan Province(Nos.24NSFSC2264,2025ZNSFSC0322)Key Research and Development Project of Sichuan Province(No.24ZDYF0633).
文摘As a key node of modern transportation network,the informationization management of road tunnels is crucial to ensure the operation safety and traffic efficiency.However,the existing tunnel vehicle modeling methods generally have problems such as insufficient 3D scene description capability and low dynamic update efficiency,which are difficult to meet the demand of real-time accurate management.For this reason,this paper proposes a vehicle twin modeling method for road tunnels.This approach starts from the actual management needs,and supports multi-level dynamic modeling from vehicle type,size to color by constructing a vehicle model library that can be flexibly invoked;at the same time,semantic constraint rules with geometric layout,behavioral attributes,and spatial relationships are designed to ensure that the virtual model matches with the real model with a high degree of similarity;ultimately,the prototype system is constructed and the case region is selected for the case study,and the dynamic vehicle status in the tunnel is realized by integrating real-time monitoring data with semantic constraints for precise virtual-real mapping.Finally,the prototype system is constructed and case experiments are conducted in selected case areas,which are combined with real-time monitoring data to realize dynamic updating and three-dimensional visualization of vehicle states in tunnels.The experiments show that the proposed method can run smoothly with an average rendering efficiency of 17.70 ms while guaranteeing the modeling accuracy(composite similarity of 0.867),which significantly improves the real-time and intuitive tunnel management.The research results provide reliable technical support for intelligent operation and emergency response of road tunnels,and offer new ideas for digital twin modeling of complex scenes.
文摘Standardizers are the most active element in standards development,and education is the core of standardization talent cultivation.To enrich students'experience in practical standardization work,the International Standardization Youth Star Competition 2024 was held in Beijing on November 10,in which students selected from universities and colleges across China prepared proposals and drafted standards with four different themes.The competition attracted the attention of both academia and industry.
基金Supported by the Education and Teaching Reform Project of the First Clinical College of Chongqing Medical University,No.CMER202305Natural Science Foundation of Xizang Autonomous Region,No.XZ2024ZR-ZY100(Z)Program for Youth Innovation in Future Medicine,Chongqing Medical University,China,No.W0138.
文摘Infected necrotizing pancreatitis(INP)remains a life-threatening complication of acute pancreatitis.Despite advancements such as endoscopic ultrasound(EUS)-guided drainage,lumen-apposing metal stents,and protocolized step-up strate-gies,the clinical practice remains heterogeneous,with variability in endoscopic strategies,procedural timing,device selection,and adjunctive techniques contri-buting to inconsistent outcomes.This review synthesizes current evidence to contribute to a structured framework integrating multidisciplinary team decision-making,advanced imaging(three-dimensional reconstruction,contrast-enhanced computed tomography/magnetic resonance imaging),EUS assessment,and biomarker-driven risk stratification(C-reactive protein,procalcitonin)to optimize patient selection,intervention timing,and complication management.Key stan-dardization components include endoscopic assessment and procedural strate-gies,optimal timing of intervention,personalized approaches for complex pan-creatic collections,and techniques to reduce the number of endoscopic debride-ments and mitigate complications.This work aims to enhance clinical outcomes,minimize practice heterogeneity,and establish a foundation for future research and guideline development in endoscopic management of INP.
基金financed by the grants from the Research Program of Sichuan TCM Culture Coordinated Development Research Center (No. 2021XT31)National Traditional Chinese Medicine Examination Research Project (No. TC2023019)National Innovation & Entrepreneurship Training Program for College Students (No. 202210633008X)。
文摘Traditional Chinese medicine(TCM) is increasingly recognized worldwide as a valuable complementary and alternative medicine. To facilitate global research and collaboration in this field, the World Health Organization(WHO) introduced the International Standard Terminologies on Traditional Chinese Medicine in 2022. This international terminology translation standard, IST 2022, goes beyond conventional translation by embracing three innovative features: 1) It reflects TCM's foundational philosophy of unity and opposition, emphasizing the interconnectedness among TCM terms during translation. This approach transcends individual term translations to explore the interrelationships among them. 2) It preserves the integrity of TCM theory by retaining transliterations for unique TCM terms that possess distinct features. 3) It employs innovative xiang(image) cognition, a concept rooted in traditional Chinese thought by helping readers grasp visual and mental imagery associated with each term. This study presents a qualitative analysis based on interviews with 11 TCM translation experts, examining their perspectives on these features and their translational preferences across the IST 2007 and 2022 versions. These findings contribute to the standardization and global harmonization of TCM terminology, advocating for clarity, precision, and the advancement of TCM in the international healthcare arena.
基金sponsored by R&D Program of Beijing Municipal Education Commission(KM202410009013).
文摘In the independent electro-hydrogen system(IEHS)with hybrid energy storage(HESS),achieving optimal scheduling is crucial.Still,it presents a challenge due to the significant deviations in values ofmultiple optimization objective functions caused by their physical dimensions.These deviations seriously affect the scheduling process.A novel standardization fusion method has been established to address this issue by analyzing the variation process of each objective function’s values.The optimal scheduling results of IEHS with HESS indicate that the economy and overall energy loss can be improved 2–3 times under different optimization methods.The proposed method better balances all optimization objective functions and reduces the impact of their dimensionality.When the cost of BESS decreases by approximately 30%,its participation deepens by about 1 time.Moreover,if the price of the electrolyzer is less than 15¥/kWh or if the cost of the fuel cell drops below 4¥/kWh,their participation will increase substantially.This study aims to provide a more reasonable approach to solving multi-objective optimization problems.
文摘State Administration for Market Regulation and National Standardization Administration of China have approved the following 416 voluntary national standards and 3 voluntary national standards with amendment.
文摘State Administration for Market Regulation and National Standardization Administration of China have approved the following 278 voluntary national standards and 3 voluntary national standards with amendment.
文摘State Administration for Market Regulation and National Standardization Administration of China have approved the following 26 mandatory national standards and 1 mandatory national standard with amendment.
文摘Uzbekistan Institute of Standards(UIS),founded in 1969,is the national standardization body of Uzbekistan.There are over 32,000 national standards in Uzbekistan.Last year,UIS revised the working regulations of all technical committees,which were established in accordance with the organizational structure of ISO.At present,UIS has standardization training courses covering 54 directions,and more than 1,700 experts have received relevant training.UIS ranks the 95th in terms of the Quality Infrastructure for Sustainable Development(QI4SD)and 80th in terms of the Global Quality Infrastructure Index(GQII).It is a member of ISO and an associate member of IEC.In the UIS,40 experts have participated in the activities of various ISO technical committees,and 251 experts have participated in the discussion of IEC projects as observer members.
文摘The European Standardization Organizations(ESOs),CEN,CENELEC and ETSI,joined forces with ENISA,the EU Agency for Cybersecurity,to host the 9th Cybersecurity Standardization Conference on March 20 in Brussels,Belgium.
文摘To exchange experiences and progress in standardization capacity building at home and abroad,the sub-forum on capacity building and creating leadership in standardization was held on July 9.The sub-forum was hosted by the Qingdao Municipal People’s Government and co-organized by the International Standardization Training Base(Qingdao),Qingdao University,International Standardization Outstanding Contribution Foundation,and Shandong National Standards Center of Technical Evaluation,which was expected to inject new vitality into the industrial development and provide new ideas for improving the talent cultivation system.
文摘We review a 3d quantum gravity model, which incorporates massive spinning fields into the Euclidean path integral in a Chern-Simons formulation. Fundamental matter as defined in our previous preon model is recapped. Both quantum gravity and the particle model are shown to be derivable from the supersymmetric 3d Chern-Simons action. Forces-Matter unification is achieved.
文摘If you look into the EU AI Act,you will find that the requirements are specified at a very high level.This is because the details are defined elsewhere.That is what standardization is doing.If we look at the world of AI standardization,there are three tiers-the international tier,the European tier and the national tier.There are also AI standardization committees at all three levels.
文摘State Administration for Market Regulation and National Standardization Administration of China have approved the following 273 national standards and 9 national standards with amendment.
文摘China Automotive Standardization Research Institute of CATARC is specialized in the standardization research and application in the automotive industry.The secretariat of SAC/TC 114 on automobiles is held by CATARC.Up to now,a standards system has been established,which consists of 1,586 standards(874 sectoral standards,593 voluntary national standards,and 119 mandatory national standards).
基金supported by the specialized fund project for the fundamental research operation of central-level public welfare scientific research institutes,titled“Research on the International Standards System Construction and Updates in the Field of Fire Protection(Project No.2023SJ09)”.
文摘This paper discusses the importance of standards in the fire extinguishing agent industry,and highlights the vital role of the standards in promoting technological innovation.China’s standards for fire extinguishing agent products have evolved significantly,aligning with industrial development,market demands,regulatory requirements,to respond to the great impact of international competition in the industry.The paper analyzes the current state of China’s standards,including their composition and integration with industry growth,green development strategies,and international harmonization.Future development strategies for the standards framework should focus on valid period estimation,fire test model development,and raw material selection guidelines.By implementing these strategies,China’s fire protection industry can enhance product quality,contribute to public safety,and maintain a competitive edge in the global market.
文摘State Administration for Market Regulation and National Standardization Administration of China have approved the following 35 mandatory national standards.
文摘The 2025 International Standardization(Chilin)Forum was held in Nanjing city,East China’s Jiangsu province,on April 16 with the theme of“Towards carbon peak and carbon neutrality:international carbon footprint standards driving green and low-carbon development”.
