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Study on force chain evolution of rice straw with different length during vibrational compression

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Particuology 2024年第2期85卷 310-322页

作者： han Tang Wenlong Xu Guixuan Zhu Changsu Xu Jinwu Wang College of Engineering Northeast Agricultural UniversityHarbin150030China

This paper explores the mechanism of force chain evolution and voidage change under vibrational and non-vibrational compression conditions of rice straw of different *** were used to explore the force chain evolution and voidage variation mechanism under different *** re-sults show that under non-vibrational compression,the strong force chain passes from top to bottom in vertical direction and from center to periphery in tangential *** vibrational compression,the force chain passes from top and bottom to center in vertical direction and the force chain evolves from outer ring to interior and exterior in tangential *** number of strong chains,voidage and standard deviation of the mean pressure under vibratory compression are lower than the values under non-vibratory *** promotes stress transfer and enhancement,velocity enhancement and density *** study analyzes the mechanical properties of different lengths straw during vibrational and non-vibrational compression from a detailed viewpoint.

关键词： Straw compression Voidage Discrete element method Mechanical properties Force chain transmission

Atomically Substitutional Engineering of Transition Metal Dichalcogenide Layers for Enhancing Tailored Properties and Superior Applications

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Nano-Micro Letters 2024年第5期16卷 248-284页

作者： Zhaosu Liu Si Yin Tee Guijian Guan Ming‑Yong han Institute of Molecular Plus Tianjin UniversityTianjin 300072People’s Republic of China Institute of Materials Research and Engineering A*STARSingapore 138634Singapore

Transition metal dichalcogenides(TMDs)are a promising class of layered materials in the post-graphene era,with extensive research attention due to their diverse alternative elements and fascinating semiconductor *** MX2 layers with different metal and/or chalcogen elements have similar structural parameters but varied optoelectronic properties,providing opportunities for atomically substitutional engineering via partial alteration of metal or/and chalcogenide atoms to produce ternary or quaternary *** resulting multinary TMD layers still maintain structural integrity and homogeneity while achieving tunable(opto)electronic properties across a full range of composition with arbitrary ratios of introduced metal or chalcogen to original counterparts(0–100%).Atomic substitution in TMD layers offers new adjustable degrees of freedom for tailoring crystal phase,band alignment/structure,carrier density,and surface reactive activity,enabling novel and promising *** review comprehensively elaborates on atomically substitutional engineering in TMD layers,including theoretical foundations,synthetic strategies,tailored properties,and superior *** emerging type of ternary TMDs,Janus TMDs,is presented specifically to highlight their typical compounds,fabrication methods,and potential ***,opportunities and challenges for further development of multinary TMDs are envisioned to expedite the evolution of this pivotal field.

关键词： Transition metal dichalcogenides Atomic substitution Tailored structure Tunable bandgap Enhanced applications

Phase diagram and quench dynamics of a periodically drivenHaldane model

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Chinese Physics B 2024年第9期33卷 317-325页

作者： Minxuan Ren han Yang Mingyuan Sun School of Science Beijing University of Posts and TelecommunicationsBeijing 100876China

We investigate a periodically driven Haldane model subjected to a two-stage driving scheme in the form of a step *** using the Floquet theory,we obtain the topological phase diagram of the *** also find that anomalous Floquet topological phases exist in the *** on examining the quench dynamics among topological phases,we analyze the site distribution of the 0-mode and p-mode edge states in long-period evolution after a *** results demonstrate that,under certain conditions,the site distribution of the 0-mode can be confined at the edge even in long-period ***,both the 0-mode and p-mode can recover and become confined at the edge in long-period evolution when the post-quench parameters(T,M_(2) /M_(1))in the phase diagram cross away from the phase boundary (M_(2)/ M_(1))=(6√3t2)/ (M_(1)−***,we conclude that whether the edge state is confined at the edge in the long-period evolution after a quench depends on the similarity of the edge states before and after the *** findings reveal some new characteristics of quench dynamics in a periodically driven system.

关键词： Floquet system Haldane model quench dynamics topological phase diagram

Early diagnostic strategies for colorectal cancer

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World Journal of Gastroenterology 2024年第33期30卷 3818-3822页

作者： Shi-Cai Liu han Zhang School of Medical Information Wannan Medical CollegeWuhu 241002Anhui ProvinceChina School of Basic Medical Sciences Wannan Medical CollegeWuhu 241002Anhui ProvinceChina

At present,cancer is still an important factor threatening human *** cancer(CRC)is one of the top three most common cancers worldwide and one of the deadliest malignancies in *** latest data showed that CRC incidence and mortality rank third and second,respectively,among global *** and accurate diagnosis is crucial to reduce the morbidity,mortality and improve survival of patients with CRC,but the current early diagnostic methods have *** effectiveness and compliance of diagnostic methods have a certain impact on whether people choose *** this editorial,we explore strategies for the early diagnosis of CRC,including stool-based,blood-based,direct visualization,and imaging examinations.

关键词： Colorectal cancer Diagnostic markers Colonoscopy Fecal immunochemical test Fecal occult blood test Circulating tumor cells Circulating tumor DNA

Time-History Dynamic Characteristics of Reinforced Soil-Retaining Walls

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Structural Durability & Health Monitoring 2024年第6期18卷 853-869页

作者： Lianhua Ma Min Huang Linfeng han Department of Building and Environmental Safety Chongqing Vocational Institute of Safety&TechnologyChongqing404120China National Engineering Research Center for Inland Waterway Regulation Chongqing Jiaotong UniversityChongqing400074China

Given the complexities of reinforced soil materials’constitutive relationships,this paper compares reinforced soil composite materials to a sliding structure between steel bars and soil and proposes a reinforced soil constitutive model that takes this sliding into account.A finite element dynamic time history calculation software for composite response analysis was created using the Fortran programming language,and time history analysis was performed on reinforced soil retaining walls and gravity retaining *** vibration time histories of reinforced soil retaining walls and gravity retaining walls were computed,and the dynamic reactions of the two types of retaining walls to vibration were compared and *** dynamic performance of reinforced earth retaining walls was evaluated.

关键词： Reinforced earth retaining walls time history dynamic analysis finite element

Expansion and improvement of ChinaMu by MuT-seq and chromosome-level assembly of the Mu-starter genome

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Journal of Integrative Plant Biology 2024年第4期66卷 645-659页

作者： Lei Liang Yuancong Wang Yanbin han Yicong Chen Mengfei Li Yibo Wu Zeyang Ma han Zhao Rentao Song State Key Laboratory of Maize Bio-breeding Frontiers Science Center for Molecular Design BreedingJoint International Research Laboratory of Crop Molecular BreedingNational Maize Improvement CenterCollege of Agronomy and BiotechnologyChina Agricultural UniversityBeijing 100091China Institute of Crop Germplasm and Biotechnology Jiangsu Provincial Key Laboratory of AgrobiologyJiangsu Academy of Agricultural SciencesNanjing 210014China Sanya Institute of China Agricultural University Sanya 572025China Hainan Yazhou Bay Seed Laboratory Sanya 572025China

ChinaMu is the largest sequence-indexed Mutator(Mu)transposon insertional library in maize(Zea mays).In this study,we made significant improvements to the size and quality of the ChinaMu *** developed a new Mu-tag isolation method Mu-Tn5-seq(MuT-seq).Compared to the previous method used by ChinaMu,MuT-seq recovered 1/3 more germinal insertions,while requiring only about 1/14 of the sequencing volume and 1/5 of the experimental *** MuT-seq,we identified 113,879 germinal insertions from 3,168 Mu-active F1 *** also assembled a high-quality genome for the Mu-active line Mu-starter,which harbors the initial active MuDR element and was used as the pollen donor for the mutation *** the Mu-starter genome,we recovered 33,662(15.6%)additional germinal insertions in 3,244(7.4%)genes in the Mu-starter *** Mu-starter genome also improved the assignment of 117,689(54.5%)germinal *** newly upgraded ChinaMu dataset currently contains 215,889 high-quality germinal *** insertions cover 32,224 pan-genes in the Mu-starter and B73Ref5 genomes,including 23,006(80.4%)core genes shared by the two *** a test model,we investigated Mu insertions in the pentatricopeptide repeat(PPR)superfamily,discovering insertions for 92%(449/487)of PPR genes in ChinaMu,demonstrating the usefulness of ChinaMu as a functional genomics resource for maize.

关键词： ChinaMu Mutator MuT-seq PPR gene Zea mays

Bifurcation and optimal control for an infectious disease model with the impact of information

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International Journal of Biomathematics 2024年第1期17卷 113-149页

作者： Zhihui Ma Shenghua Li Shuyan han School of Mathematics and Statistics Lanzhou University Lanzhou Gansu 730000P.R.China

A nonlinear infectious disease model with information-influenced vaccination behavior and contact patterns is proposed in this paper,and the impact of information related to disease prevalence on increasing vaccination coverage and reducing disease incidence during the outbreak is ***,we perform the analysis for the existence of equilibria and the stability properties of the proposed *** particular,the geometric approach is used to obtain the sufficient condition which guarantees the global asymptotic stability of the unique endemic equilibrium Ee when the basic reproduction number Ro>***,mathematical derivation combined with numerical simulation shows the existence of the double Hopf bifurcation around ***,based on the numerical results,it is shown that the information coverage and the average information delay may lead to more complex dynamical ***,the optimal control problem is established with information-infuenced vaccination and treatment as control *** corresponding optimal paths are obtained analytically by using Pontryagin's maximum principle,and the applicability and validity of virous intervention strategies for the proposed controls are presented by numerical experiments.

关键词： Infectious disease model information index stability double Hopf bifurcation optimal control Pontryagin's maximum principle

Biomass Transformation

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Chemical Research in Chinese Universities 2024年第1期40卷 1-2页

作者： Liu, Huizhen Meng, Qinglei han, Buxing Beijing National Laboratory for Molecular Sciences CAS Laboratory of Colloid and Interface and Thermodynamics CAS Research/ Education Center for Excellence in Molecular Sciences Center for Carbon Neutral Chemistry Institute of Chemistry Chinese Academy of Sciences Beijing P. R. China University of Chinese Academy of Sciences Beijing P. R. China

Biomass,as a renewable and abundant source of organic carbon,presents a sunstainable alternative to conventional fossil *** efficient conversion of biomass into fuels and chemicals is essential for alleviating energy and environmental issues and achieving carbon ***,the complexity and diversity of biomass feedstocks present significant research *** biomass types,lignocellulose holds particular promise due to its abundance,unique structure,and the fact that it is inedible and does not compete with the food supply.

关键词： Biomass Transformation holds

Single-Nucleus RNA Sequencing Reveals Cardiac Macrophage Landscape in Hypoplastic Left Heart Syndrome

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Congenital Heart Disease 2024年第2期19卷 233-246页

作者： Xiaozhuo Xu Yilin Huang Xu han First Clinical Medical College Affiliated Hospital of Nanjing University of Chinese MedicineNanjing210008China Department of Geriatrics Affiliated Hospital of Nanjing University of Chinese MedicineNanjing210029China

Background:Hypoplastic left heart syndrome(HLHS)is one of the most challenging congenital heart diseases in clinical *** cardiac tissues,resident macrophages fulfill critical functions in maintaining a stable cardiac state and have strong regenerative capacity and organ ***,the molecular mechanisms of macro-phages in HLHS remained ***:Single-nucleus RNA sequencing(snRNA-seq)data of HLHS and healthy control(donors)samples obtained from the Gene Expression Omnibus(GEO)database were normalized and clustered using the Seurat ***“FindMarkers”function was used to screen differentially expressed genes(DEGs)between the HLHS and donor groups and to analyze the functional enrichment of the set of genes of ***,cell-cell communication,pseudotime,and single-cell regulatory network inference and cluster-ing(SCENIC)analyses were used to study the mechanisms of macrophages in ***:Based on the snRNA-seq data of HLHS and donors,we identified a total of 9 cell clusters,among which the proportion of macrophages was significantly less in the HLHS group than in the control *** of macrophage subpopulations(Macrophages 1,2,and 3)showed that Macrophages 1 was mainly involved in nervous system development,angiogenesis,and apoptotic *** addition,analysis of communication between Macro-phages 1 and cardiomyocytes revealed that ligand-acceptor pairs such as GAS6/AXL,IL6,IGF1,THY1,and L1CAM were present only in the donor ***,pesudotime and SCENIC analyses demonstrated that FOXO3 and ELF2 played a critical role for Macrophages 1 to maintain cardiac function in patients with ***:Our study improved the current understanding of the molecular mechanisms of macrophage devel-opment in HLHS,showing that manipulating the regulatory role of macrophages in the heart can be a novel treat-ment for HLHS.

关键词： Hypoplastic left heart syndrome single-nucleus RNA sequencing macrophage cellular subpopulation transcription factor