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信鸽产酸克雷伯菌GS-BY-GG的分离鉴定

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中国人兽共患病学报 2024年第6期40卷 512-519页

作者：李韦李赟辉金有顺巴旭丽张淮瑜韩涛李兆才周继章中国农业科学院兰州兽医研究所兰州大学动物医学与生物安全学院动物疫病防控全国重点实验室兰州730000 西北农林科技大学动物医学院杨凌712100 西安乡下人有限公司蓝田710500 甘肃省病原生物学基础学科研究中心兰州730046

目的分离并鉴定鸽源产酸克雷伯菌,探究其生物学特性及致病性。方法剖检甘肃某信鸽棚发病鸽,观察并采集病变组织,通过观察病菌形态、生化试验、16S rRNA PCR鉴定和序列分析实现对致病菌的分离鉴定,结合组织病理学观察、药敏试验和致病... 详细信息

目的分离并鉴定鸽源产酸克雷伯菌,探究其生物学特性及致病性。方法剖检甘肃某信鸽棚发病鸽,观察并采集病变组织,通过观察病菌形态、生化试验、16S rRNA PCR鉴定和序列分析实现对致病菌的分离鉴定,结合组织病理学观察、药敏试验和致病性试验对分离菌株进行耐药性和致病性研究。结果病鸽肝、肺、心等多器官出血,肝脏发黄且质地脆,肺脏发生化脓;从病鸽中成功分离到一株革兰氏阴性、短杆状菌株,麦康凯琼脂培养基上为粉红色光滑、湿润、圆形菌落,靛基质试验阳性;16S rRNA扩增序列与MN330093.1同源性达100.00%,表明病鸽感染产酸克雷伯菌,并命名为GS-BY-GG;产酸克雷伯菌GS-BY-GG对青霉素、氨苄西林和呋喃唑酮等10种药物耐药,对氟苯尼考、美罗培南和庆大霉素等5种药物敏感;组织病理学观察可见病鸽多器官出血,肝脏细胞排列不规则、多处可见棕黄色色素沉积,气管黏膜上皮广泛细胞坏死和脱落、黏膜层可见大量炎性细胞浸润;接种SPF雏鸡显示分离菌具有很强的致病性。结论本研究成功分离了鸽源产酸克雷伯菌GS-BY-GG,研究结果为产酸克雷伯的临床诊断和防治提供数据支撑。

关键词：产酸克雷伯菌信鸽分离鉴定耐药情况组织病理学

Cloning and Expression Analysis of an AP2/ERF Gene and Its Responses to Phytohormones and Abiotic Stresses in Rice

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Rice science 2010年第1期17卷 1-9页

作者： MA Hao-li ZHOU Han-lin zhang huai-yu ZHAO Jie Key Laboratory of Ministry of Education for Plant Developmental Biology College of Life Sciences Wuhan University Wuhan 430072 China College of Life Sciences Sichuan Agricultural University Ya＇an 625014 China

Ethylene response factors （ERFs） play important roles in response to plant biotic and abiotic stresses. In this study, a gene encoding a putative AP2/ERF domain-containing protein was isolated by screening a SSH cDNA library from rice and designated as Oryza sativa AP2/ERF-like protein （OsAP2LP） gene. OsAP2LP is 1491 bp in length, interrupted by seven introns, and encodes a putative protein of 348 amino acids. Temporal and spatial expression analysis showed that the OsAP2LP gene was preferentially expressed in roots, panicles, mature embryos and seeds in rice. Real-time quantitative PCR analysis indicated that the expression levels of the OsAP2LP gene were increased under the treatments of drought and gibberellin but decreased under the treatments of low temperature, salt, abscisic acid （ABA） and zeatin. Taken together, these results suggest that OsAP2LP might be involved in stress responses, and probably plays roles as a transcription regulator when plants response to cold, salt and drought stresses through ABA and gibberellin pathways.

关键词： AP2/ERF gene gene cloning transcription factor phytohormone abiotic stress rice (Oryza sativa)

Application of sparse S transform network with knowledge distillation in seismic attenuation delineation

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Petroleum Science 2024年第4期21卷 2345-2355页

作者： Nai-Hao Liu yu-Xin zhang Yang Yang Rong-Chang Liu Jing-huai Gao Nan zhang School of Information and Communications Engineering Xi'an Jiaotong University School of Software Engineering Xi'an Jiaotong University PetroChina Research Institute of Petroleum Exploration and Development (RIPED) CNPC Research Institute of Exploration and Development Yumen Oilfield Company CNPC

Time-frequency analysis is a successfully used tool for analyzing the local features of seismic ***, it suffers from several inevitable limitations, such as the restricted time-frequency resolution,the difficulty in selecting parameters, and the low computational efficiency. Inspired by deep learning,we suggest a deep learning-based workflow for seismic time-frequency analysis. The sparse S transform network(SSTNet) is first built to map the relationship between synthetic traces and sparse S transform spectra, which can be easily pre-trained by using synthetic traces and training labels. Next, we introduce knowledge distillation(KD) based transfer learning to re-train SSTNet by using a field data set without training labels, which is named the sparse S transform network with knowledge distillation(KD-SSTNet).In this way, we can effectively calculate the sparse time-frequency spectra of field data and avoid the use of field training labels. To test the availability of the suggested KD-SSTNet, we apply it to field data to estimate seismic attenuation for reservoir characterization and make detailed comparisons with the traditional time-frequency analysis methods.

关键词： S transform Deep learning Knowledge distillation Transfer learning Seismic attenuation delineation

Electrolytes additives for Zn metal anodes: regulation mechanism and current perspectives

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Rare Metals 2024年第9期43卷 4162-4197页

作者： yu-Zhe zhang huai-Sheng Ao Qi Dong Shao-Jie zhang Zhi-Guo Hou Na-Na Wang Xue-Song Xie Jian Rong Zhong-yu Li School of Environmental Science and Engineering Changzhou University School of Petrochemical Engineering Changzhou University Hefei National Laboratory for Physical Science at Microscale School of Chemistry and Materials Science University of Science and Technology of China Institute for Superconducting and Electronic Materials Australian Institute for Innovative Materials Innovation Campus University of Wollongong Department of Chemical and Materials Engineering University of Alberta

With distinct advantages such as high gravimetric and volumetric capacity(5855 mAh·cm-3and 820mAh·g-1), low redox potential(-0.762 V vs. standard hydrogen electrode（SHE）), high abundance, low toxicity and intrinsic safety of Zn metal anode, Zn-ion batteries have become a potential alternative to Li-ion ***, several challenges still need to be addressed prior to the practical applications of Zn-ion batteries, such as dendrite growth during Zn plating/stripping and interfacial side reactions on the Zn surface. Such issues can be addressed by introducing additives to regulate the components and structures of the electrolyte. In this review, we systematically discussed the core issues of metallic Zn anodes and comprehensively summarized a novel perspective of the regulation mechanism of inhibiting dendrite growth or interfacial side reactions in Zn anodes by introducing additives into aqueous ***, some discussions and prospects for aqueous Zn ion batteries（AZIBs） are presented for future research.

关键词： AZIBs Current perspectives Electrolyte additives Regulation mechanism Zn metal anode

Seismicity changes and numerical simulation of coseismic deformation following the 2022 M_(s)6.8 Luding earthquake in Sichuan,China

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Science China Earth Sciences 2024年第8期67卷 2507-2521页

作者： Qiu MENG Zitao WANG huai zhang Key Laboratory of Computational Geodynamics of Chinese Academy of Sciences College of Earth and Planetary SciencesUniversity of Chinese Academy of SciencesBeijing 100049China Institute of Earthquake Forecasting China Earthquake AdministrationBeijing 100036China Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai) Zhuhai 519080China Beijing Yanshan Earth Critical Zone National Research Station Beijing 101408China

The Xianshuihe fault is a major tectonic boundary between the Sichuan-yunnan rhombic and Bayanhar blocks in Southwest *** an average left-lateral strike-slip movement of 10–15 mm/yr,it is a fast-moving strike-slip continental *** September 5,2022,the Ms6.8 Luding earthquake occurred along the Moxi segment of the Xianshuihe fault,reaching a maximum intensity of IX and resulting in a significant number of casualties and severe property *** earthquake broke the long-standing seismic quiescence of the Xianshuihe fault,which lasted for more than 40 years,and was followed by a significant number of *** outstanding question is how the behavior of the Xianshuihe fault and major earthquakes changed following this *** this study,we examined the changes in regional seismicity following the Luding earthquake and identified the potential for future strong earthquakes along the Xianshuihe *** used a finite element numerical method to simulate the environment of the seismogenic fault and its adjacent *** addition,we used the coseismic slip model of the Luding earthquake with the split-node method to calculate how the stress and strain fields in the surrounding area were affected by the2022 *** stress changes were resolved in the main faults,and the seismicity of adjacent faults was analyzed in conjunction with the observed seismic *** results indicate that regional tectonic movement primarily occurred to the southeast along the Moxi *** stress field is approximately north-south in tension and east-west in *** in the stress field in the epicentral region of the Luding earthquake exceeded 1 *** maximum displacement of the coseismic deformation field was concentrated between Moxi town and Tuanjie village,and the Coulomb stress of the fault zone in this region experienced the largest ***,the b-value of the Gutenberg-Richter magnitude-frequency relationship at the epicenter a

关键词： Luding earthquake Seismicity Coulomb failure stress change Finite element numerical simulation

Theoretical understanding of correlation between magnetic phase transition and the superconducting dome in high-Tc cuprates

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Science China(Physics,Mechanics & Astronomy) 2024年第2期67卷 167-173页

作者： Chen zhang Cai-Xin zhang Su-huai Wei Haiqing Lin Hui-Xiong Deng State Key Laboratory of Superlattices and Microstructures Institute of SemiconductorsChinese Academy of SciencesBeijing 100083China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China Beijing Computational Science Research Center Beijing 100193China

Many issues concerning the origin of high-temperature superconductivity(HTS)are still under *** example,how the magnetic order varies with doping and its relationship with the superconducting temperature(Tc);and why Tcalways peaks near the quantum critical *** this paper,taking hole-doped La_(2)CuO_(4)as a classical example,we employ the first-principles band structure and total energy calculations with Monte Carlo simulations to explore how the symmetry-breaking magnetic ground state evolves with hole doping and the origin of a dome-shaped superconductivity region in the phase *** demonstrate that the local antiferromagnetic order and doping play key roles in determining the electron-phonon coupling,thus ***,the La_(2)CuO_(4)possesses a checkerboard local antiferromagnetic ground *** the hole doping increases,Tcincreases with the enhanced electron-phonon coupling *** as the doping increases further,the strength of the antiferromagnetic interaction weakens and spin fluctuation *** the critical doping level,a magnetic phase transition occurs that reduces the local antiferromagnetism-assisted electron-phonon coupling,thus diminishing the *** superconductivity disappears in the heavily overdoped region when the ferromagnetic order *** observations could account for why cuprates have a dome-shaped superconductivity region in the phase *** study,thus,contributes to a fundamental understanding of the correlation between doping,local magnetic order,and superconductivity of HTS.

关键词： high-temperature superconductivity antiferromagnetic order electron-phonon coupling doping effect cuprates

A three-dimensional co-continuous network structure polymer electrolyte with efficient ion transport channels enabling ultralong-life all solid-state lithium metal batteries

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Journal of Energy Chemistry 2024年第7期94卷 635-645页

作者： Meng Wang Hu zhang Yewen Li Ruiping Liu huai Yang School of Chemical&Environmental Engineering China University of Mining and Technology(Beijing)Beijing 100083China Beijing Advanced Innovation Center for Materials Genome Engineering&School of Materials Science and Engineering Peking UniversityBeijing 100871China

Solid polymer electrolytes(SPEs)have emerged as one of the most promising candidates for the construction of solid-state lithium batteries due to their excellent flexibility,scalability,and interface compatibility with ***,a novel all-solid polymer electrolyte(PPLCE)was fabricated by the copolymer network of liquid crystalline monomers and poly(ethylene glycol)dimethacrylate(PEGDMA)acts as a structural frame,combined with poly(ethylene glycol)diglycidyl ether short chain interspersed serving as mobile ion transport *** preparaed PPLCEs exhibit excellent mechanical property and out-standing electrochemical performances,which is attributed to their unique three-dimensional cocontinuous structure,characterized by a cross-linked semi-interpenetrating network and an ionic liquid phase,resulting in a distinctive nanostructure with short-range order and long-range ***,the addition of PEGDMA is proved to be critical to the comprehensive performance of the PPLCEs,which effectively modulates the microscopic morphology of polymer networks and improves the mechanical properties as well as cycling stability of the solid *** used in a lithiumion symmetrical battery configuration,the 6 wt%-PPLCE exhibites super stability,sustaining operation for over 2000 h at 30 C,with minimal and consistent overpotential of 50 *** resulting Li|PPLCE|LFP solid-state battery demonstrates high discharge specific capacities of 160.9 and 120.1 mA h g^(-1)at current densities of 0.2 and 1 C,*** after more than 300 cycles at a current density of 0.2 C,it retaines an impressive 73.5%***,it displayes stable cycling for over 180 cycles at a high current density of *** super cycle stability may promote the application for ultralong-life all solid-state lithium metal batteries.

关键词： Solid-state electrolyte Lithium-metal batteries Liquid crystalline polymer Copolymer 3D co-continuous structure Long cycle stability

Cavitation research with computational fluid dynamics:From Euler-Euler to Euler-Lagrange approach

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Journal of Hydrodynamics 2024年第1期36卷 1-23页

作者： Bin Ji Zi-yang Wang huai-yu Cheng Rickard E.Bensow State Key Laboratory of Water Resources Engineering and Management Wuhan UniversityWuhan430072China Department of Mechanics and Maritime Sciences Chalmers University of TechnologyGothenburgSweden

Unsteady cavitating flow often contains vapor structures with a wide range of different length scales,from micro-bubbles to large cavities,which issues a big challenge to precisely investigate its evolution mechanism by computational fluid dynamics(CFD)*** present work reviews the development of simulation methods for cavitation,especially the emerging Euler-Lagrange ***,the progress of the numerical investigation of hot and vital issues is discussed,including cavitation inception,cloud cavitation inner structure and its formation mechanism,cavitation erosion,and cavitation *** is indicated that the Euler-Lagrange method can determine cavitation inception point *** cloud cavitation,the Euler-Lagrange method can reveal the source of microbubbles and their distribution law inside the shedding *** method also has advantages and great potential in assessing cloud cavitation-induced erosion and *** the ever-growing demands of cavitation simulation accuracy in basic research and engineering applications,how to improve the Euler-Lagrange method’s stability and applicability is still an open *** further promote the application of this advanced CFD simulation technology in cavitation research,some key issues are to be solved and feasible suggestions are put forward for further work.

关键词： numerical simulation Euler-Euler method Euler-Lagrange method bubble dynamicsgy,Gothenburg,Sweden

Higgs boson decays h→MZ in the TNMSSM

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Chinese Physics C 2024年第9期48卷 21-35页

作者： huai-Cong Hu Zhao-Yang zhang Ning-yu Zhu Hai-Xiang Chen School of Physical Science and Technology Guangxi UniversityNanning 530004China

We study the SM-like Higgs boson decays h→MZ in the triplet extended NMSSM(TNMSSM),where M is a vector meson(ρ,ω,φ,J/ψ,Υ).Compared to the minimal supersymmetric standard model(MSSM),the TNMSSM includes two new SU(2) triplets with hypercharge ±1 and an SM gauge singlet,which are coupled to each *** indirect contributions to the h→MZ decays are produced from the effective hyZ vertex,and they are more important than the direct *** results of this work could encourage a detection on h→Zγ at the future high energy colliders for exploring new physics beyond the SM.

关键词： supersymmetry Higgs boson decay