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Analysis of Academic Accumulation:Reading of Philosophical Historiographer and Reading of Philosopher

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学术界 2011年第1期 273-275页

作者： cui Ping school of Politics and Public Affairs,southwest university of political science & Law

The way and target of academic accumulation is different because of the different academic *** the same classical work,those who are ambitious for a philosopher has to read by means of critique,and pay close attention to its demonstration but not its *** the contrary,those who are to be philosophical historiographer have only to read for judgment,so the focal point of reading is the view of classical work but its not *** former is limited in nature,but the latter is limitless.

关键词： academic accumulation reading of philosophical historiographer reading of philosopher

Normal scalar curvature and a pinching theorem in S^m×R and H^m×R

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science China Mathematics 2011年第9期54卷 1977-1984页

作者： CHEN Qun 1,2 & cui Qing 3,1,1 school of Mathematics and Statistics,Wuhan university,Wuhan 430079,China 2 International Center for Theoretical Physics,Trieste 34100,Italy 3 school of Mathematics,southwest jiaotong university,chengdu 610031,China school of Mathematics and Statistics Wuhan University Wuhan China International Center for Theoretical Physics Trieste Italy school of Mathematics Southwest Jiaotong University Chengdu China

We obtain an inequality in Sm×R and Hm×R which is similar to DDVV *** an application,we show that a minimal submanifold in H m×R with nonnegative scalar curvature must be a surface of the type γ×R,where γ is a g... 详细信息

关键词： product spaces DDVV conjecture pinching theorem

Dynamic Sulfur-Rich Polymers from Elemental Sulfur and Epoxides

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Chinese Journal of Polymer science 2024年第10期42卷 1479-1487,I0010页

作者： ke-Xiang Chen Chen-Hui cui Zhen Li Ting Xu Hao-Qing Teng Zhi-Yuan He Yin-Zhou Guo Xiao-Qing Ming Zhi-Shen Ge Yan-Feng Zhang Tie-Jun Wang school of Chemistry Engineering Research Center of Energy Storage Materials and DevicesMinistry of EducationXi’an Jiaotong UniversityXi’an710049China State key Lab for Strength and Vibration of Mechanical Structures Department of Engineering MechanicsXi’an Jiaotong UniversityXi’an710049China

Sulfur-containing dynamic polymers had attracted significant attention due to their unique chemical structures with high *** sulfur, an inexpensive industrial waste product, to synthesize dynamic polysulfide polymers through reverse vulcanization has been a notable approach. However, this method required high temperatures and resulted in the release of unpleasant oders. In this study, we presented a robust method for the preparation of sulfur-rich polymers with dynamic polysulfide bonds from elemental sulfur and inexpensive epoxide monomers via a one-pot strategy at the mild room temperature. Different types of polysulfide molecules and polymers were synthesized by reacting various epoxide compounds with sulfur, along with the investigation of their structures and dynamic behaviors. It was noteworthy that the obatined polymers prepared from m-(2,3-epoxypropoxy)-N,N-bis(2,3-epoxypropyl)aniline and elemental sulfur exhibit multiple dynamic behaviors, including polysulfide metathesis and polysulfide-thiol exchange, enabling their rapid stress relaxation, self-healing, reprocessing and degradable properties of the cross-linked polymer. More importantly, the hydroxyl groups at the side chains from epoxide ring opening exhibited potential transesterification. This work provided a facile strategy for designing dynamic sulfur-rich polymers via a mild synthesis route.

关键词： Elemental sulfur Sulfur-containing polymer Dynamic covalent bond Dynamic polymer

Evolution of HIV/AIDS Prevention and Control Policies in China:A Grounded Theory Approach

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China CDC weekly 2024年第1期6卷 12-22页

作者： Huang Li rui Gao Chichen Zhang school of Public Health Southern Medical UniversityGuangzhou CityGuangdong ProvinceChina school of Health Management Southern Medical UniversityGuangzhou CityGuangdong ProvinceChina key Laboratory of Philosophy and Social sciences of Colleges and Universities in Guangdong Province for Collaborative Innovation of Health Management Policy and Precision Health Service Southern Medical UniversityGuangzhou CityGuangdong ProvinceChina Graduate school Xi’an Jiaotong-Liverpool UniversitySuzhou CityJiangsu ProvinceChina school of political science and Public Administration Soochow UniversitySuzhou CityJiangsu ProvinceChina

Objective:This study aims to provide a theoretical foundation for the development and practical application of human immunodeficiency virus(HIV)/acquired immunodeficiency syndrome(AIDS)prevention and control policy systems in China by scrutinizing,analyzing,and synthesizing the evolution of Chinese policies in this ***:Utilizing grounded theory,we employed NVivo12 software to perform text content analysis,mining,and coding classification,along with visualization techniques,on policy texts sourced from Chinese government platforms,including the official website of China’s State *** considered four analytical dimensions—time,subject,type,and ***:The National Health Commission and the State Council emerged as the primary entities engaged in policymaking for HIV/AIDS in *** identified four distinct stages in the evolution of these policies,culminating in a novel‘sun-shaped’HIV/AIDS prevention and control policy network model with an emphasis on‘knowledge,attitude,and practice’at its nucleus,which aligns with national conditions and societal ***,the focal groups of these policies have been dynamically refined and updated over ***:Our findings introduce a‘sunshaped’HIV/AIDS prevention and control policy network model specific to *** observed a conceptual policy shift towards prioritizing overall human health rather than confining the focus to disease ***,in light of China’s growing elderly population,the imperative to address HIV/AIDS prevention and control among older adults is an issue that warrants increased attention.

关键词： prevention HIV/AIDS policy

Highly efficient solution-processed organic photovoltaics enabled by improving packing behavior of organic semiconductors

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science China Chemistry 2024年第3期67卷 890-897页

作者： Xinyue cui Hongxiang Li Hao Lu Yuqiang Liu Guangliu Ran rui Liu Huarui Zhang Xueqing Ma Dawei Li Yi Lin Jifa Yu Wenkai Zhang Lei Cai Yahui Liu Pei Cheng Andong Zhang Zaifei Ma Guanghao Lu Zhishan Bo College of Textiles and Clothing State Key Laboratory of Bio-fibers and Eco-textilesQingdao UniversityQingdao 266071China State key Laboratory of Polymer Materials Engineering College of Polymer Science and EngineeringSichuan UniversityChengdu 610065China Department of Physics and Applied Optics Beijing Area Major Laboratory Center for Advanced Quantum StudiesBeijing Normal UniversityBeijing 100875China Shandong Province key Laboratory of Medical Physics and Image Processing Technology School of Physics and ElectronicsShandong Normal UniversityJinan 250014China Beijing key Laboratory of Energy Conversion and Storage Materials College of ChemistryBeijing Normal UniversityBeijing 100875China Center for Advanced Low-Dimension Materials State Key Laboratory for Modification of Chemical Fibers and Polymer MaterialsCollege of Materials Science and EngineeringDonghua UniversityShanghai 201620China Frontier Institute of science and Technology Xi'an Jiaotong UniversityXi'an 710054China

Solution processability is a unique property of organic semiconductors. The compact and regular π-π stacking between molecules is paramount in the performance of organic optoelectronic devices. However, it is still a challenge to improve their stacking quality without sacrificing the solution-processability from the aspect of materials design. Here, delicately engineered additives are presented to promote the formation of ordered aggregation of conjugated molecules by regulating their nucleation and growth dynamics. Intriguingly, the long-chain BTP-eC9-4F molecules can realize ordered aggregation comparable to short-chain ones without sacrificing processability. The domain size of BTP-eC9-4F aggregation is enlarged from 24.2 to 32.2 nm in blend *** exciton diffusion and charge transport become faster, contributing to the suppression of recombination losses. As a result, a power conversion efficiency of 19.2% is achieved in D18:BTP-eC9-4F based organic photovoltaics. Our findings demonstrate a facile strategy to improve the packing quality of solution-processed organic semiconductors for high-efficiency photovoltaics and beyond photovoltaics.

关键词： organic semiconductor organic photovoltaic charge transport solution processability

Multi-user reinforcement learning based task migration in mobile edge computing

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Frontiers of Computer science 2024年第4期18卷 161-173页

作者： Yuya cui Degan ZHANG Jie ZHANG Ting ZHANG Lixiang CAO Lu CHEN Tianjin key Lab of Intelligent Computing and Novel Software Technology Tianjin University of TechnologyTianjin 300384China school of Internet of Things Engineering Jiangsu Vocational College of Information TechnologyWuxi 214153China school of Electronic and Information Engineering Beijing Jiaotong UniversityBeijing 100044China school of Sports Economics and Management Tianjin University of SportTianjin 301617China

Mobile Edge Computing(MEC)is a promising *** service migration is a key technology in *** order to maintain the continuity of services in a dynamic environment,mobile users need to migrate tasks between multiple servers in real *** to the uncertainty of movement,frequent migration will increase delays and costs and non-migration will lead to service ***,it is very challenging to design an optimal migration *** this paper,we investigate the multi-user task migration problem in a dynamic environment and minimizes the average service delay while meeting the migration *** order to optimize the service delay and migration cost,we propose an adaptive weight deep deterministic policy gradient(AWDDPG)*** distributed execution and centralized training are adopted to solve the high-dimensional *** show that the proposed algorithm can greatly reduce the migration cost and service delay compared with the other related algorithms.

关键词： mobile edge computing mobility service migration deep reinforcement learning deep deterministic policy gradient

克罗地亚高等教育评估中的学生参与研究——以博洛尼亚进程为背景

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外国教育研究 2011年第7期38卷 6-10页

作者：马广永胡子祥西南交通大学公共管理学院四川成都610031 西南交通大学政治学院四川成都610031

加入博洛尼亚进程后,克罗地亚高等教育部门积极建立学生参与高等教育评估的机制,学生在高等教育评估中的作用得以切实体现。尽管克罗地亚高等教育部门确立了有效的学生参与网络,构建了多元利益相关者的合作平台,建立并完善了有效的国际... 详细信息

加入博洛尼亚进程后,克罗地亚高等教育部门积极建立学生参与高等教育评估的机制,学生在高等教育评估中的作用得以切实体现。尽管克罗地亚高等教育部门确立了有效的学生参与网络,构建了多元利益相关者的合作平台,建立并完善了有效的国际合作机制,但在学生参与机制中仍存在一些亟待解决的问题,譬如法律制度的完善、活动经费的保障以及学生委员会的独立性等。

关键词：克罗地亚博洛尼亚进程学生参与高等教育质量评估

Generalized S-KKM Theorems and Minimax Inequalities in FC-Spaces

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Journal of southwest jiaotong university(English Edition) 2008年第3期16卷 303-307页

作者：张红玲范翠丽 Department of Mathematics Southwest Jiaotong University

The concept of FC-closed subset in FC-space without any linear structure was introduced. Then, the generalized KKM theorem is proved for FC-closed value mappings under some conditions. The FC-space in the theorem is the generalization of L-convex space and the condition of the mapping with finitely FC-closed value is weaker than that with finitely L-closed value.

关键词： Generalized S-KKM type theorem Finitely continuous topological space FC-closed value Minimax inequalities

Monitoring and detection of steel bridge diseases:A review

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Journal of Traffic and Transportation Engineering(English Edition) 2024年第2期11卷 188-208页

作者： Chuang cui Qinghua Zhang Dengke Zhang Wulve Lao Lemou Wu Zhenxiong Jiang National key Laboratory of Bridge Intelligent and Green Construction Southwest Jiaotong UniversityChengdu 610031China school of Civil Engineering Southwest Jiaotong UniversityChengdu 610031China Jiangsu Provincial Transportation Engineering Construction Bureau Nanjing 210004China

Fatigue,corrosion,and bolt loosening are the main causes of structural performance degradation and collapse in steel *** monitoring of steel bridge diseases is a basic premise for ensuring high-quality operation and maintenance of steel *** this regard,a summary and analysis were conducted on the classification of steel bridge diseases,monitoring and detection methods,application statuses,and major *** main causes,research status,and development trends of steel bridge diseases are *** results showed that,for fatigue crack problems,fatigue crack initiation has a small scale,high difficulty in monitoring and detection,few methods,and low *** the cracks grow,the difficulty of monitoring and detection decreases,the number of methods increases,and the accuracy *** crack monitoring and detection are affected by the environmental and vehicular *** corrosion features are evident in steel bridges,and corrosion identification methods and technologies are rapidly *** and detecting corrosion in concealed areas is difficult and requires further improvements in monitoring and detection technologies and their *** and detection methods and supporting equipment for bolt loosening in steel bridges are rapidly *** development of intelligent monitoring and detection technologies and supporting equipment is an important research topic that urgently needs to be addressed for the full-lifecycle operation and maintenance of steel bridges and the sustainable development of bridge *** new intelligent sensing components based on high-performance materials and sensing element design theory to improve the monitoring and detection perception ability is an important development direction for steel bridge monitoring and *** on intelligent monitoring and detection technologies,standardized indicators,and related topics based on intelligent oper

关键词： Steel bridge Diseases Fatigue crack Corrosion Bolt loosening Monitoring and detection