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Microwave-assisted exploration of the electron configuration-dependent electrocatalytic urea oxidation activity of 2D porous NiCo_(2)O_(4) spinel

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Journal of Energy Chemistry 2024年第4期91卷 226-235页

作者： Jun Wan Zhiao Wu Guangyu Fang Jinglin Xian Jiao Dai Jiayue Guo Qingxiang Li yongfei you Kaisi Liu Huimin Yu Weilin Xu Huiyu Jiang Minggui Xia Huanyu Jin State Key Laboratory of New Textile Materials and Advanced Processing Technologies Hubei Key Laboratory of Biomass Fibers and Eco-Dyeing&FinishingWuhan Textile UniversityWuhan 430200HubeiChina Institute for Sustainability Energy and ResourcesThe University of AdelaideAdelaideSA 5005Australia Future Industries Institute University of South AustraliaMawson Lakes CampusAdelaideSA 5095Australia

Urea holds promise as an alternative water-oxidation substrate in electrolytic ***-valence nickelbased spinel,especially after heteroatom doping,excels in urea oxidation reactions(UOR).However,traditional spinel synthesis methods with prolonged high-temperature reactions lack kinetic precision,hindering the balance between controlled doping and highly active two-dimensional(2D)porous structures *** significantly impedes the identification of electron configuration-dependent active sites in doped 2D nickel-based ***,we present a microwave shock method for the preparation of 2D porous NiCo_(2)O_(4)*** the transient on-off property of microwave pulses for precise heteroatom doping and 2D porous structural design,non-metal doping(boron,phosphorus,and sulfur)with distinct extranuclear electron disparities serves as straightforward examples for *** tuning of lattice parameter reveals the impact of covalent bond strength on NiCo_(2)O_(4)structural *** introduced defect levels induce unpaired d-electrons in transition metals,enhancing the adsorption of electron-donating amino groups in urea ***,Bode plots confirm the impact mechanism of rapid electron migration caused by reduced band gaps on UOR *** prepared phosphorus-doped 2D porous NiCo_(2)O_(4),with optimal electron configuration control,outperforms most reported *** controlled modification strategy advances understanding theoretical structure-activity mechanisms of high-performance 2D spinels in UOR.

关键词： 2D materials Spinel Microwave Electrocatalysis Urea oxidation reaction

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经桡动脉肝肿瘤介入治疗的可行性和安全性

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实用癌症杂志 2024年第8期39卷 1330-1333页

作者：游勇飞万茜江西省南昌市第一医院 330008

目的评价经桡动脉入路行原发性肝癌介入栓塞化疗的可行性和安全性。方法选取原发性肝癌10例,术前充分评估有肝癌介入栓塞化疗适应证,且无桡动脉入路穿刺禁忌,通过桡动脉血管鞘常规行原发性肝癌介入栓塞化疗术。介入治疗期间评估:①桡动... 详细信息

目的评价经桡动脉入路行原发性肝癌介入栓塞化疗的可行性和安全性。方法选取原发性肝癌10例,术前充分评估有肝癌介入栓塞化疗适应证,且无桡动脉入路穿刺禁忌,通过桡动脉血管鞘常规行原发性肝癌介入栓塞化疗术。介入治疗期间评估:①桡动脉穿刺成功率、肝动脉插管成功率和桡动脉痉挛发生率;②术后24小时内桡动脉穿刺点周围出现血肿概率;③超声评估介入手术后1个月桡动静脉瘘、桡动脉假性动脉瘤出现概率,评估穿刺置管后桡动脉有无狭窄和闭塞;④桡动脉介入术后患者满意度。结果①左桡动脉穿刺成功率100%,其中1针穿刺成功7例,2针2例,3针或以上1例,肝总动脉插管成功率100%,没有发生桡动脉痉挛患者;②10例病患介入术后24小时内均没出现桡动脉周围血肿,3例桡动脉穿刺处皮下瘀斑,无需处理和干预;③10例患者术后超声提示桡动脉管腔较术前狭窄,但均未闭塞,均未发现桡动静脉瘘、桡动脉假性瘤等并发症发生;④术后即刻满意度100%;术后1周时满意9例,另外1例因出现左前臂疼痛,满意度90%。结论经桡动脉入路行肝肿瘤介入治疗可行性确切,不良反应少,患者满意度高,值得在临床进一步验证和推广应用。

关键词：桡动脉肝肿瘤介入治疗

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Plate tectonics in the Archean:Observations versus interpretations

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Science China Earth Sciences 2024年第1期67卷 1-30页

作者： yongfei ZHENG School of Earth and Space Sciences University of Science and Technology of ChinaHefei 230026China Key Laboratory of Crust-Mantle Materials and Environment Chinese Academy of SciencesHefei 230026China Center of Excellence for Comparative Planetology Chinese Academy of SciencesHefei 230026China

Plate tectonics theory,established in the 1960s,has been successful in explaining many geological phenomena,processes and events that occurred in the ***,the theory has often struggled to provide a coherent framework in interpreting geological records in continental interior and Precambrian *** dealing with the relationship between plate tectonics and continental geology,continental interior tectonics was often separated from continental margin tectonics in the inheritance and development of their structure and *** separation led to the illusion that the plate tectonics theory is not applicable to Precambrian geology,particularly in explaining the fundamental geological characteristics of Archean *** this illusion does not mean that the Archean continental crust did not originate from a regime of plate tectonics,it led to the development of alternative tectonic models,often involving vertical movements under a regime of stagnant lid tectonics,including not only endogenous processes such as gravitational sagduction,mantle plumes and heat pipes but also exogenous processes such as bolide *** vertical processes were not unique to the Archean but persisted into the *** result from mantle poloidal convection at different depths,not specific to any particular *** the plate tectonics theory from the traditional kinematic model in the 20th century to a holistic kinematic-dynamic model in the 21st century and systematically examining the vertical transport of matter and energy at plate margins,it is evident that plate tectonics can explain the common geological characteristics of Archean cratons,such as lithological associations,structural patterns and metamorphic *** deciphering the structure and composition of convergent plate margins as well as their dynamics,the formation and evolution of continental crust since the Archean can be divided into ancient plate tectonics in the Preca

关键词： Plate tectonics Archean geology Continental origin Crustal reworking Plate interior Plate margin

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Hypoxic tumor microenvironment:Destroyer of natural killer cell function

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Chinese Journal of Cancer Research 2024年第2期36卷 138-150页

作者： yongfei Zhang Feifei Guo Yufeng Wang Cancer Center the First Hospital of Jilin UniversityChangchun 130021China

In recent years, immunotherapy has made remarkable progress in treating certain tumors and hematological malignancies. However, the efficacy of natural killer(NK) cells, which are an important subset of innate lymphocytes used in anticancer immunotherapy, remains limited. Hypoxia, a critical characteristic of the tumor microenvironment(TME), is involved in tumor development and resistance to radiotherapy, chemotherapy, and immunotherapy. Moreover, hypoxia contributes to the impairment of NK cell function and may be a significant factor that limits their therapeutic effects. Targeted hypoxia therapy has emerged as a promising research area for enhancing the efficacy of NK cell therapy. Therefore, understanding how the hypoxic TME influences NK cell function is crucial for improving antitumor treatment outcomes.

关键词： Hypoxia immunotherapy NK cell tumor microenvironment

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Blockchain-Enabled Federated Learning for Privacy-Preserving Non-IID Data Sharing in Industrial Internet

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Computers, Materials & Continua 2024年第8期80卷 1967-1983页

作者： Qiuyan Wang Haibing Dong yongfei Huang Zenglei Liu Yundong Gou School of Electrical and Information Engineering Hunan Institute of TechnologyHengyang421002China

Sharing data while protecting privacy in the industrial Internet is a significant *** machine learning methods require a combination of all data for training;however,this approach can be limited by data availability and privacy *** learning(FL)has gained considerable attention because it allows for decentralized training on multiple local ***,the training data collected by data providers are often non-independent and identically distributed(non-IID),resulting in poor FL *** paper proposes a privacy-preserving approach for sharing non-IID data in the industrial Internet using an FL approach based on blockchain *** overcome the problem of non-IID data leading to poor training accuracy,we propose dynamically updating the local model based on the divergence of the global and local *** approach can significantly improve the accuracy of FL training when there is relatively large *** addition,we design a dynamic gradient clipping algorithm to alleviate the influence of noise on the model accuracy to reduce potential privacy leakage caused by sharing model ***,we evaluate the performance of the proposed scheme using commonly used open-source image *** simulation results demonstrate that our method can significantly enhance the accuracy while protecting privacy and maintaining efficiency,thereby providing a new solution to data-sharing and privacy-protection challenges in the industrial Internet.

关键词： Federated learning data sharing non-IID data differential privacy blockchain

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Single Fe atom-anchored manganese dioxide for efficient removal of volatile organic compounds in refrigerator

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Nano Research 2024年第5期17卷 3927-3933页

作者： Yiwen Wang Jun Zhang yongfei Zhang Yu Zhang Zhe Wang Jing Wang Yuen Wu Department of Endocrinology the First Affiliated Hospital of USTCDivision of Life Science and MedicineUniversity of Science and Technology of ChinaHefei 230001China School of Chemistry and Materials Science University of Science and Technology of ChinaHefei 230026China Hefei Hualing Co. LtdHefei 230088China Linkway Technology Co. LtdResearch Institute of Single Atom Catalysts Industry TechnologyNanning 530000China

The efficient and rapid removal of volatile organic compounds(VOCs)holds significant importance for ensuring food quality and human health,particularly within the low-temperature confined spaces in ***,achieving effective VOCs degradation under such conditions poses challenges in terms of activating inert bonds and facilitating mass *** this study,we propose a novel solution by designing a cleaner module that incorporates 1.07%single Fe atom-anchored manganese dioxide catalysts(FeSAs-MnO_(2)).The combination of single Fe atoms and defect-rich MnO_(2) substrate efficiently activates molecular oxygen,leading to enhanced generation of highly reactive oxygen species(ROS).Non-thermal plasma(NTP)and circulating fan are introduced to facilitate the regeneration of catalytic activity and improve mass *** FeSAs-MnO_(2) cleaner module demonstrates exceptional performance in trimethylamine(TMA)removal,achieving a conversion efficiency of 98.9%for 9 ppm within just 9 ***,accelerated aging tests predict an extended service life of up to 45 years for the FeSAs-MnO_(2) cleaner module,surpassing the expected lifespan of refrigerators significantly.

关键词： single atom catalysts volatile organic compounds(VOCs) trimethylamine(TMA) non-thermal plasma(NTP) refrigerator

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Sparse Reconstructive Evidential Clustering for Multi-View Data

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IEEE/CAA Journal of Automatica Sinica 2024年第2期11卷 459-473页

作者： Chaoyu Gong Yang you School of Computing National University of SingaporeSingapore

Although many multi-view clustering(MVC) algorithms with acceptable performances have been presented, to the best of our knowledge, nearly all of them need to be fed with the correct number of clusters. In addition, these existing algorithms create only the hard and fuzzy partitions for multi-view objects,which are often located in highly-overlapping areas of multi-view feature space. The adoption of hard and fuzzy partition ignores the ambiguity and uncertainty in the assignment of objects, likely leading to performance degradation. To address these issues, we propose a novel sparse reconstructive multi-view evidential clustering algorithm(SRMVEC). Based on a sparse reconstructive procedure, SRMVEC learns a shared affinity matrix across views, and maps multi-view objects to a 2-dimensional humanreadable chart by calculating 2 newly defined mathematical metrics for each object. From this chart, users can detect the number of clusters and select several objects existing in the dataset as cluster centers. Then, SRMVEC derives a credal partition under the framework of evidence theory, improving the fault tolerance of clustering. Ablation studies show the benefits of adopting the sparse reconstructive procedure and evidence theory. Besides,SRMVEC delivers effectiveness on benchmark datasets by outperforming some state-of-the-art methods.

关键词： Evidence theory multi-view clustering(MVC) optimization sparse reconstruction

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Non-Deterministic Liveness-Enforcing Supervisor Tolerant to Sensor-Reading Modification Attacks

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IEEE/CAA Journal of Automatica Sinica 2024年第1期11卷 240-248页

作者： Dan you Shouguang Wang IEEE the School of Information and Electronic Engineering Sussex Artificial Intelligence InstituteZhejiang Gongshang UniversityHangzhou 310018China

In this paper, we study the supervisory control problem of discrete event systems assuming that cyber-attacks might occur. In particular, we focus on the problem of liveness enforcement and consider a sensor-reading modification attack(SM-attack) that may disguise the occurrence of an event as that of another event by intruding sensor communication channels. To solve the problem, we introduce non-deterministic supervisors in the paper, which associate to every observed sequence a set of possible control actions offline and choose a control action from the set randomly online to control the system. Specifically, given a bounded Petri net(PN) as the reference formalism and an SMattack, an algorithm that synthesizes a liveness-enforcing nondeterministic supervisor tolerant to the SM-attack is proposed for the first time.

关键词： Cyber-attacks cyber-physical system(CPS) liveness non-deterministic supervisors Petri net(PN)

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A holistic perspective on Earth system science

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Science China Earth Sciences 2024年第10期67卷 3013-3040页

作者： yongfei ZHENG Zhengtang GUO Nianzhi JIAO Mu MU Shilong PIAO Suiyan FU Dinghui YANG Maoyan ZHU State Key Laboratory of Lithospheric and Environmental Coevolution School of Earth and Space SciencesUniversity of Science and Technology of ChinaHefei 230026China State Key Laboratory of Lithospheric and Environmental Coevolution Institute of Geology and GeophysicsChinese Academy of SciencesBeijing 100029China School of Ocean and Earth Sciences Xiamen UniversityXiamen 361102China Department of Atmospheric and Oceanic Sciences Fudan UniversityShanghai 200438China School of Environment Peking UniversityBeijing 100871China School of Earth and Space Sciences Peking UniversityBeijing 100871China Department of Mathematical Sciences Tsinghua UniversityBeijing 100084China Nanjing Institute of Geology and Palaeontology Chinese Academy of SciencesNanjing 210008China

Earth system can be categorized into three parts, solid Earth system, surface Earth system, and Sun-Earth space system. These three subsystems not only have mutual transmission and coupling relationships in both energy and matter but also involve multiple scales from microscopic to macroscopic. Earth system science is characterized by its globality and unity with a holistic view and a systematic view at multiple scales in both space and time. It focuses not only on the physical, chemical and biological interactions between various geospheres but also on the properties, behaviors, processes, and mechanisms of the entire Earth and its spheres. Although significant progress has been made in the study of internal disciplines of these three subsystems,there is still insufficient understanding of their overall behavior and interactions between individuals, thus facing challenges of different types and levels. The solid Earth system is composed of the crust, mantle, and core. Existing observational techniques struggle to penetrate deep into the mantle, making direct observation and data acquisition difficult;the extreme environments within Earth, such as high temperature, high pressure, and strong magnetic fields, also pose great challenges to observational equipment and scientific experiments. The surface Earth system is an open complex mega-system, in which there are complex interactions and feedback mechanisms among its geospheres(such as atmosphere, hydrosphere, biosphere, pedosphere and lithosphere), leading to difficulties in understanding of its overall behavior and long-term evolution. Biological activities have become increasingly significant in affecting the surface Earth system. The coupling between the internal and external Earth systems becomes more complex. Distinguishing and quantifying the impacts of Earth spherical interactions and biological activities on the surface Earth system is a major challenge. The Sun-Earth space system involves multiple physical

关键词： Earth's interior Earth's exterior Geospheres Energy exchange Material transfer

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Shaping the Spatial Coherence of Quantum Source

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Chinese Physics Letters 2024年第9期41卷 38-39页

作者： Chenglong you Quantum Photonics Laboratory Department of Physics and AstronomyLouisiana State UniversityBaton RougeLouisiana 70803USA

There has been immense research interest in quantum entanglement due to its ability to generate stronger-thanclassical nonlocal correlations.^([1,2])These strong,nonlocal correlations form the backbone of various quantum information *** of the core principles of quantum entanglement is quantum coherence,which provides deep insights into the statistical correlations among quantum particles.^([3–5])Quantum coherence reflects the wavelike properties of quantum particles,enabling them to exhibit interference and unique quantum behaviors.

关键词： particles. quantum backbone

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