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Communications in Theoretical Physics 2024年第5期76卷 49-57页

作者： Cheng Chen Faiza Afzal yufeng zhang School of Mathematics China University of Mining and TechnologyXuzhou221116China Jiangsu Center for Applied Mathematics(CUMT) XuzhouJiangsu 221116China

In this paper,two different methods for calculating the conservation laws are used,these are the direct construction of conservation laws and the conservation theorem proposed by *** these two methods,we obtain the co... 详细信息

关键词： conservation laws Landau-Ginzburg-Higgs equation Hirota-Satsuma equation Gardner equation

Mutual information oriented deep skill chaining for multi‐agent reinforcement learning

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CAAI Transactions on Intelligence Technology 2024年第4期9卷 1014-1030页

作者： Zaipeng Xie Cheng Ji Chentai Qiao WenZhan Song Zewen Li yufeng zhang Yujing zhang Key Laboratory of Water Big Data Technology of Ministry of Water Resources Hohai UniversityNanjingChina College of Computer and Information Hohai UniversityNanjingChina Center for Cyber‐Physical Systems University of GeorgiaAthensGeorgiaUSA Information Networking Institute Carnegie Mellon UniversityPittsburghPennsylvaniaUSA Department of Electrical and Systems Engineering University of PennsylvaniaPhiladelphiaPennsylvaniaUSA

Multi‐agent reinforcement learning relies on reward signals to guide the policy networks of individual ***,in high‐dimensional continuous spaces,the non‐stationary environment can provide outdated experiences that hinder convergence,resulting in ineffective training performance for multi‐agent *** tackle this issue,a novel reinforcement learning scheme,Mutual Information Oriented Deep Skill Chaining(MioDSC),is proposed that generates an optimised cooperative policy by incorporating intrinsic rewards based on mutual information to improve exploration *** rewards encourage agents to diversify their learning process by engaging in actions that increase the mutual information between their actions and the environment *** addition,MioDSC can generate cooperative policies using the options framework,allowing agents to learn and reuse complex action sequences and accelerating the convergence speed of multi‐agent *** was evaluated in the multi‐agent particle environment and the StarCraft multi‐agent challenge at varying difficulty *** experimental results demonstrate that MioDSC outperforms state‐of‐the‐art methods and is robust across various multi‐agent system tasks with high stability.

关键词： artificial intelligence techniques decision making intelligent multi‐agent systems

Electrochemical converting ethanol to hydrogen and acetic acid for large scale green hydrogen production

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Nano Research 2024年第3期17卷 1542-1551页

作者： yufeng zhang Wei Zhu Jinjie Fang Zhiyuan Xu Yanrong Xue Jiajing Pei Rui Sui Xingdong Wang Xuejiang zhang Zhongbin Zhuang State Key Lab of Organic-Inorganic Composites and Beijing Advanced Innovation Center for Soft Matter Science and Engineering Beijing University of Chemical TechnologyBeijing 100029China Laboratory of Advanced Functional Materials of Nanjing Nanjing Xiaozhuang UniversityNanjing 211171China Beijing Key Laboratory of Energy Environmental Catalysis Beijing University of Chemical TechnologyBeijing 100029China

Electrochemical coupling hydrogen evolution with biomass reforming reaction(named electrochemical hydrogen and chemical cogeneration(EHCC)),which realizes green hydrogen production and chemical upgrading simultaneously,is a promising method to build a carbon-neutral ***,we analyze the EHCC process by considering the market *** ethanol to acetic acid and hydrogen approach is the most feasible for large-scale hydrogen *** develop AuCu nanocatalysts,which can selectively oxidize ethanol to acetic acid(>97%)with high long-term *** isotopic and in-situ infrared experiments reveal that the promoted water dissociation step by alloying contributes to the enhanced activity of the partial oxidation reaction path.A flow-cell electrolyzer equipped with the AuCu anodic catalyst achieves the steady production of hydrogen and acetic acid simultaneously in both high selectivity(>90%),demonstrating the potential scalable application for green hydrogen production with low energy consumption and high profitability.

关键词： selective ethanol electrooxidation gold alloy catalyst electrochemical-coupled hydrogen production market assessment interfacial water activation

Fine mapping and characterization of a major QTL for grain length,***-2D.1,that has pleiotropic effects in synthetic allohexaploid wheat

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Journal of Integrative Agriculture 2024年第9期23卷 2911-2922页

作者： Mingming Wang Jia Geng Zhe zhang Zihan zhang Lingfeng Miao Tian Ma Jiewen Xing Baoyun Li Qixin Sun yufeng zhang Zhongfu Ni Frontiers Science Center for Molecular Design Breeding/Key Laboratory of Crop Heterosis and Utilization Ministry of Education/Beijing Key Laboratory of Crop Genetic ImprovementChina Agricultural UniversityBeijing 100193China National Plant Gene Research Centre Beijing 100193China

Grain size is one of the determinants of grain yield,and identifying the genetic loci that control grain size will be helpful for increasing grain *** our previous study,a quantitative trait locus(QTL)for grain length(GL),***-2D.1,was identified from an F2 population developed from the cross between the natural(TAA10)and synthetic(XX329)allohexaploid *** the present study,we mainly fine mapped and validated its genetic *** this end,multiple near-isogenic lines(NILs)were obtained through marker-assisted selection with TAA10 as the recurrent *** secondary populations derived from 25 heterozygous recombinants were used for fine mapping of ***-2D.1,and the allele from XX329 significantly increased GL,thousand-grain weight(TGW),total spikelet number per spike(TSN)and spike compactness(SC).Using NILs for XX329(2D+)and TAA10(2D−),we determined the genetic and pleiotropic effects of *** target sequences were aligned with the wheat reference genome RefSeq v2.1 and spanned an~0.9 Mb genomic ***2D03G0114900(ortholog of Os03g0594700)was predicted as the candidate gene based on whole-genome re-sequencing and expression *** summary,the map-based cloning of ***-2D.1 will be useful for improving grain weight with enhanced GL and TSN.

关键词： grain length total spikelet number per spike spike compactness near-isogenic lines QTL wheat

Expression and clinical significance of pattern recognition receptor-associated genes in hand, foot and mouth disease

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Asian Pacific Journal of Tropical Medicine 2024年第4期17卷 173-183,I0001-I0003页

作者： Muqi Wang Huiling Deng Yuan Chen Yikai Wang yufeng zhang Chenrui Liu Meng zhang Ting Li Shuangsuo Dang Yaping Li Department of Infectious Diseases The Second Affiliated Hospital of Xi'an Jiaotong UniversityXi'an 710004China Department of Pediatrics Xi'an Central HospitalXi'an 710004China Department of Infectious Diseases Xi'an Children's HospitalXi'an 710003China

Objective:To explore which pattern recognition receptors(PRRs)play a key role in the development of hand,foot,and mouth disease(HFMD)by analyzing PRR-associated ***:We conducted a comparative analysis of PRR-associated gene expression in human peripheral blood mononuclear cells(PBMCs)infected with enterovirus 71(EV-A71)which were derived from patients with HFMD of different severities and at different stages.A total of 30 PRR-associated genes were identified as significantly upregulated both over time and across different EV-A71 ***,ELISA was employed to quantify the expression of the six most prominent genes among these 30 identified genes,specifically,BST2,IRF7,IFI16,TRIM21,MX1,and ***:Compared with those at the recovery stage,the expression levels of BST2(P=0.027),IFI16(P=0.016),MX1(P=0.046)and DDX58(P=0.008)in the acute stage of infection were significantly upregulated,while no significant difference in the expression levels of IRF7(P=0.495)and TRIM21(P=0.071)was found between different stages of the *** expression levels of BST2,IRF7,IFI16 and MX1 were significantly higher in children infected with single pathogen than those infected with mixed pathogens,and BST2,IRF7,IFI16 and MX1 expression levels were significantly lower in coxsackie B virus(COXB)positive patients than the negative *** levels of one or more of BST2,IRF7,IFI16,TRIM21,MX1 and DDX58 genes were correlated with PCT levels,various white blood cell counts,and serum antibody levels that reflect disease course of *** aminotransferase was correlated with BST2,MX1 and DDX58 expression ***:PRR-associated genes likely initiate the immune response in patients at the acute stage of HFMD.

关键词： Pattern recognition receptors(PRRs) Hand,foot,and mouth disease(HFMD) Immune Enterovirus 71(EV-A71)

Tim4 deficiency reduces CD301b+macrophage and aggravates periodontitis bone loss

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International Journal of Oral Science 2024年第2期16卷 280-292页

作者： Ziming Wang Hao Zeng Can Wang Jiaolong Wang Jing zhang Shuyuan Qu Yue Han Liu Yang Yueqi Ni Wenan Peng Huan Liu Hua Tang Qin Zhao yufeng zhang State Key Laboratory of Oral&Maxillofacial Reconstruction and Regeneration Key Laboratory of Oral Biomedicine Ministry of EducationHubei Key Laboratory of StomatologySchool&Hospital of StomatologyTaikang Center for Life and Medical SciencesWuhan UniversityWuhanChina School of Stomatology Nanchang UniversityNanchangChina Institute of Infection and Immunity Science and Technology Innovation CenterShandong First Medical University&Shandong Academy of Medical SciencesJinanChina Medical Research Institute School of MedicineWuhan UniversityWuhanChina

Periodontitis is a common chronic inflammatory disease that causes the periodontal bone destruction and may ultimately result in tooth *** the progression of periodontitis,the osteoimmunology microenvironment in periodontitis is damaged and leads to the formation of pathological alveolar bone ***301b^(+)macrophages are specific to the osteoimmunology microenvironment,and are emerging as vital booster for conducting bone ***,the key upstream targets of CD301b^(+)macrophages and their potential mechanism in periodontitis remain *** this study,we concentrated on the role of Tim4,a latent upstream regulator of CD301b^(+)*** first demonstrated that the transcription level of Timd4(gene name of Tim4)in CD301b^(+)macrophages was significantly upregulated compared to CD301b^(-) macrophages via high-throughput RNA ***,several Tim4-related functions such as apoptotic cell clearance,phagocytosis and engulfment were positively regulated by CD301b^(+)*** single-cell RNA sequencing analysis subsequently discovered that Cd301b and Timd4 were specifically co-expressed in *** following flow cytometric analysis indicated that Tim4 positive expression rates in total macrophages shared highly synchronized dynamic changes with the proportions of CD301b^(+)macrophages as periodontitis ***,the deficiency of Tim4 in mice decreased CD301b^(+)macrophages and eventually magnified alveolar bone resorption in ***,Tim4 controlled the p38 MAPK signaling pathway to ultimately mediate CD301b^(+)macrophages *** a word,Tim4 might regulate CD301b^(+)macrophages through p38 MAPK signaling pathway in periodontitis,which provided new insights into periodontitis immunoregulation as well as help to develop innovative therapeutic targets and treatment strategies for periodontitis.

关键词： period upstream eventually

Generalized Isospectral-Nonisospectral Modified Korteweg-de Vries Integrable Hierarchies and Related Properties

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Annals of Applied Mathematics 2024年第2期40卷 105-138页

作者： Huanhuan Lu Xinan Ren yufeng zhang Hongyi zhang School of Mathematics China University of Mining and TechnologyXuzhouJiangsu 221116China

In this article, a new technique for deriving integrable hierarchy is discussed, i.e., such that are derived by combining the Tu scheme with the vector product. Several classes of spectral problems are introduced by threedimensional loop algebra and six-dimensional loop algebra whose commutators are vector product, and the six-dimensional loop algebra is derived from the enlargement of the three-dimensional loop algebra. It is important that we make use of the variational method to create a new vector-product trace identity for which the Hamiltonian structure of the isospectral integrable hierarchy is worked out. The derived integrable hierarchies are reduced to the modified Korteweg-de Vries(mKdV) equation, generalized coupled mKdV integrable system and nonisospectral mKdV equation under specific parameter selection. Starting from a 3×3 matrix spectral problem, we subsequently construct an explicit N-fold Darboux transformation for integrable system(2.8) with the help of a gauge transformation of the corresponding spectral problem. At the same time, the determining equations of nonclassical symmetries associated with mKdV equation are presented in this paper. It follows that we investigate the coverings and the nonlocal symmetries of the nonisospectral mKdV equation by applying the classical Frobenius theorem and the coordinates of a infinitely-dimensional manifold in the form of Cartesian product.

关键词： Darboux transformation nonlocal symmetry covering manifold contact structure

Catalytic conversion of mixed polyolefins under mild atmospheric pressure

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The Innovation 2024年第2期5卷 98-106页

作者： Binzhi Zhao Hui Tan Jie Yang Xiaohui zhang Zidi Yu Hanli Sun Jialiang Wei Xinyi Zhao yufeng zhang Lili Chen Dali Yang Jin Deng Yao Fu Zheng Huang Ning Jiao State Key Laboratory of Natural and Biomimetic Drugs School of Pharmaceutical SciencesPeking UniversityBeijing 100191China Beijing National Laboratory for Molecular Sciences College of Chemistry and Molecular EngineeringPeking UniversityBeijing 100871China The Institute for Advanced Studies Wuhan UniversityWuhan 430072China Hefei National Laboratory for Physical Sciences at the Microscale CAS Key Laboratory of Urban Pollutant ConversionAnhui Province Key Laboratory of Biomass Clean EnergyiChEMUniversity of Science and Technology of ChinaHefei 230026China State Key Laboratory of Organometallic Chemistry Chinese Academy of SciencesShanghai 200032China

The chemical recycling of polyolefin presents a considerable challenge,especially as upcycling methods struggle with the reality that plastic wastes typically consist of mixtures of polyethylene(PE),polystyrene(PS),and polypropylene(PP).We report a catalytic aerobic oxidative approach for polyolefins upcycling with the corresponding carboxylic acids as the *** method encompasses three key ***,it operates under atmospheric pressure and mild conditions,using O_(2) or air as the ***,it is compatible with high-density polyethylene,low-density polyethylene,PS,PP,and their ***,it uses an economical and recoverable metal *** has been demonstrated that this approach can efficiently degrade mixed wastes of plastic bags,bottles,masks,and foam boxes.

关键词： mixed Catalytic oxidative

Application of the “Three Threes” Method in Clinical Teaching of Internal Jugular Vein Puncture

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Open Journal of Emergency Medicine 2024年第1期12卷 10-17页

作者： Pengchao Cheng Wang Xi Junnan Wang Jin Rao yufeng zhang Zhinong Wang Department of Cardiovascular Surgery Second Affiliated Hospital of Naval Medical University Shanghai China

Objective: To clarify the role of the “Three Threes” method in clinical teaching of internal jugular vein puncture and explore improvements in teaching methods. Methods: A doctor was assigned to the induction room of the Second Affiliated Hospital of Naval Medical University (Shanghai Changzheng Hospital) for two months. The time required for catheterization, the first puncture success rate, and occurrence of puncture-related complications were compared before and after learning the “Three Threes” method. Results: Using the “Three Threes” method reduced the catheterization time by 43%, increased the first puncture success rate by 17%, and led to fewer puncture-related complications. Conclusion: The application of the “Three Threes” method not only improves the success rate of internal jugular vein puncture but also reduces complications, making it easier for students to master the technique.

关键词： Internal Jugular vein Puncture “Three Threes” Method Deep Vein Catheterization Teaching Practice

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即刻种植中软组织移植的效果和技巧

中华口腔医学杂志 2024年第5期59卷 517-522页

作者：王宇蓝张玉峰武汉大学口腔医(学)院种植科武汉

即刻种植可减少治疗次数, 缩短缺牙时间, 但具有较高的美学风险。软组织移植可一定程度减少牙龈退缩风险, 提高即刻种植美学效果的可预期性和长期稳定性, 是目前研究的热点。全面了解即刻种植手术中使用软组织移植的循证依据和手术方法,... 详细信息

即刻种植可减少治疗次数, 缩短缺牙时间, 但具有较高的美学风险。软组织移植可一定程度减少牙龈退缩风险, 提高即刻种植美学效果的可预期性和长期稳定性, 是目前研究的热点。全面了解即刻种植手术中使用软组织移植的循证依据和手术方法, 能辅助临床诊疗决策和提高治疗效果。本文阐述即刻种植后的软硬组织变化、美学风险及危险因素, 对即刻种植中软组织移植的优势、时机、材料选择和常用临床术式进行阐述, 以期为临床医师提高即刻种植的效果提供参考。

关键词：牙种植即刻种植软组织移植结缔组织移植胶原蛋白生物材料牙龈退缩