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Chinese Physics B 2024年第9期33卷 374-382页

作者： Jingyang Xu Li Guo Xin Qi Ronghua Lu Min Zhang Jingtao Zhang Jing Chen Department of Physics Shanghai Normal UniversityShanghai 200234China key Laboratory for Quantum Optics and Center for Cold Atom Physics Shanghai Institute of Optics and Fine MechanicsChinese Academy of SciencesShanghai 201800China Hefei national research Center for Physical Sciences at the Microscale and School of Physical Sciences University of Science and Technology of ChinaHefei 230026China Shenzhen key Laboratory of Ultraintense Laser and Advanced Material Technology College of Engineering PhysicsShenzhen Technology UniversityShenzhen 518118China

A Wigner-distribution-like(WDL)function based on the strong-field approximation(SFA)theory is used to investigate the ionization time of the photoelectron emitted from the initial states with different magnetic quantum number m in elliptically polarized electric *** saddle-point method is adopted for *** different m states,a discrepancy exists in the WDL distributions of the photoelectrons emitted in a direction close to the major axis of the laser field *** on the saddle-point analysis,this discrepancy can be ascribed to the interference between electrons ionized from two tunneling *** results show that the relationships between the tunneling instants and kinetic energy of photoelectrons are the same for different m initial states when the Coulomb potential is not *** work sheds some light on the ionization-time information of electrons from different magnetic quantum states.

关键词： strong-field ionization Wigner-distribution-like ionization instant

Value of Metagenomic Next-Generation Sequencing in Clinical Diagnosis and Targeted Therapy of Nontuberculous Mycobacteria Infection

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Infectious Microbes & Diseases 2024年第2期6卷 100-102页

作者： Lanlan Xiao Shuai Zhao Hongjuan Wang Liang Yu Jing Guo Xinyi Wu Xiaowei Xu State key Laboratory for Diagnosis and Treatment of Infectious Diseases National Clinical Research Center for Infectious DiseasesNational Medical Center for Infectious DiseasesCollaborative Innovation Center for Diagnosis and Treatment of Infectious DiseasesThe First Affiliated HospitalZhejiang University School of MedicineHangzhouChina Affiliated Hospital of Nantong University NantongChina Zhejiang University City College HangzhouChina

The purpose of this study was to assess the value of metagenomic next-generation sequencing(mNGS)for rapid diagnosis of diseases caused by nontuberculous mycobacteria(NTM).We retrospectively reviewed four NTM-infected cases diagnosed by smear microscopy,mycobacterial culture and mNGS *** found that the mNGS method not only had a shorter detection turnaround time(3–4 days)than Mycobacterium culture(15–20 days)but also had higher sensitivity and specificity to identify NTM compared with conventional detection *** addition,mNGS was able to identify coinfections by NTM and other bacteria,fungi or ***,diagnosis of NTM by mNGS can provide timely and precise guidance for subsequent clinical treatment of NTM infections.

关键词： nontuberculous mycobacteria metagenomic next-generation sequencing mycobacterial culture turnaround time

development and validation of reference material for the detection of cashew nut ingredients by real-time quantitative PCR

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Food Science and Human Wellness 2024年

作者： Jiang Man Xiuyan Sun Xiaobo Zhang Ning Yu Dajun Xu Ying Chen Jijuan Cao key Laboratory of Biotechnology and Bioresources Utilization of Ministry of Education， Dalian Minzu University Chinese Academy of Inspection and Quarantine china Association for Standardization

To solve the problem of the lack of reference material （RM） for determination of allergenic ingredients in food， a RM of cashew nut powder was developed in the study. Cashew nut powder was prepared from cashew nut kernel by selecting， cleaning， crushing， n-hexane degreasing and sieving treatment. The reliability and traceability of RM was verified using real-time quantitative polymerase chain reaction （qPCR） and phylogenetic tree analysis. The cashew nut powder RM showed good homogeneity， and good stability under long-term storage at 4℃ and short-term simulated transportation from -20℃ to 45℃. The RM was determined jointly by 8 collaborative laboratories， and the characteristic CTvalue was 24.732， and the extended uncertainty was 1.052 （k=2）. The RM was applied to verify the amplification efficiency （E）and the limit of detection （LOD） for qPCR assay， and showed good applicability. The RM could be used for method validation and quality control， for the determination of allergenic ingredients in food mixed with trace amounts of cashew nut.

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Assessment of ECMWF’s Precipitation Forecasting Performance for china from 2017 to 2022

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Journal of Tropical Meteorology 2024年第3期30卷 257-274页

作者： PAN Liu-jie ZHANG Hong-fang LIANG Mian LIU Jia-huimin DAI Chang-ming Shaanxi Meteorological Observatory Xi’an 710014 China key Laboratory of Eco-Environment and Meteorology for the Qinling Mountains and Loess Plateau Xi’an 710014 China Shaanxi Meteorological Service Centre Xi’an 710014 China

This study used the china Meteorological Administration(CMA)three-source fusion gridded precipitation analysis data as a reference to evaluate the precipitation forecast performance of the European Centre for Medium-Range Weather Forecasts(ECMWF)model for china from 2017 to *** main conclusions are as *** precipitation forecast capability of the ECMWF model for china has gradually improved from 2017 to *** scores such as bias,equitable threat score(ETS),and Fractions Skill Score(FSS)showed improvements for different categories of *** bias of light rain forecasts overall adjusted towards smaller values,and the increase in forecast scores was greater in the warm season than in the cold *** ETS for torrential rain more intense categories significantly increased,although there were large fluctuations in bias across different *** model exhibited higher precipitation bias in most areas of North china,indicating overprediction,while it showed lower bias in South china,indicating *** ETSs indicate that the model performed better in forecasting precipitation in the northeastern part of china without the influence of climatic background *** of the differences between the first period and the second period of the forecast shows that the precipitation amplitude in the ECMWF forecast shifted from slight underestimation to overestimation compared to that of CMPAS05,reducing the likelihood of missing extreme precipitation *** improvement in ETS is mainly due to the reduction in bias and false alarm rates and,more importantly,an increase in the hit *** 2017 to 2022,the area coverage error of model precipitation forecast relative to observations showed a decreasing trend at different scales,while the FSS showed an increasing trend,with the highest FSS observed in *** ETS followed a parabolic trend with increasing neighborhood radius,with the better ETS neighborhood radius generally

关键词： ECMWF forecasting verification neighborhood verification FSS

Inverse design of mechanical metamaterial achieving a prescribedconstitutive curve

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Theoretical & Applied Mechanics Letters 2024年第1期14卷 16-22页

作者： Zongliang Du Tanghuai Bian Xiaoqiang Ren Yibo Jia Shan Tang Tianchen Cui Xu Guo State key Laboratory of Structural Analysis Optimization and CAE Software for Industrial EquipmentDepartment of Engineering MechanicsDalian University of TechnologyDalian 116023China Ningbo Institute of Dalian University of Technology Ningbo 315016China

Besides exhibiting excellent capabilities such as energy absorption,phase-transforming metamaterials offer a vast design space for achieving nonlinear constitutive *** is facilitated by switching between different patterns under ***,the related inverse design problem is quite challenging,due to the lack of appropriate mathematical formulation and the convergence issue in the post-buckling analysis of intermediate *** this work,periodic unit cells are explicitly described by the moving morphable voids method and effectively analyzed by eliminating the degrees of freedom in void ***,by exploring the Pareto frontiers between error and cost,an inverse design formulation is proposed for unit *** formulation aims to achieve a prescribed constitutive curve and is validated through numerical examples and experimental *** design approach presented here can be extended to the inverse design of other types of mechanical metamaterials with prescribed nonlinear effective properties.

关键词： Metamaterial Pattern-transformation Constitutive curve Inverse design

Community structure and carbon metabolism functions of bacterioplankton in the Guangdong coastal zone

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Marine Life Science & Technology 2024年第3期6卷 547-561页

作者： Ziqi Peng Pandeng Wang Xiaoqing Luo Qiqi Deng Ziwen Yang Jiaxue Wu Wendong Xian Weicong Yan Xiaozhen Mou Yang Yuan Wenjun Li Jialing Li State key Laboratory of Biocontrol Guangdong Provincial Key Laboratory of Plant Stress BiologySchool of Marine SciencesSchool of EcologySchool of Life SciencesSun Yat-Sen UniversityGuangzhou 510275China Southern Marine Science and Engineering Guangdong Laboratory(Guangzhou) Guangzhou 511458China Department of Biological Sciences Kent State UniversityKentOH 44242USA Marine Microorganism Ecological&Application Lab Marine Science and Technology CollegeZhejiang Ocean UniversityZhoushan 316000China

Coastal ecosystems are an important region for biogeochemical cycling,are a hotspot of anthropogenic disturbance and play a crucial role in global carbon cycling through the metabolic activities of *** can be broadly classified into two lifestyles:free-living(FL)and particle-attached(PA).However,how coastal bacterioplankton the community structure,co-occurrence networks and carbon metabolic functions with different lifestyles are differentiated is still largely *** these processes is necessary to better determine the contributions of coastal bacterioplankton to carbon ***,the characteristics of community structure and carbon metabolism function of bacterioplankton with two lifestyles in the coastal areas of Guangdong province were investigated using amplicon sequencing,metagenomic,and metatranscriptomic *** results show that the main bacterioplankton responsible for carbon metabolism were the Pseudomonadota,Bacteroidota,and *** microbial community structure,carbon metabolic function,and environmental preferences differ between different *** and PA bacteria exhibited higher carbon fixation and degradation potentials,respectively.A range of environmental factors,such as dissolved oxygen,pH,and temperature,were associated with the community structure and carbon metabolic functions of the *** activities,such as nutrient discharge,may affect the distribution of functional genes and enhance the carbon degradation functions of *** conclusion,this study increased the understanding of the role of microorganisms in regulating carbon export in coastal ecosystems with intense human activity.

关键词： Particle-attached and free-living bacterioplankton Community structure Carbon metabolism Coastal ecosystem

A KNOX II transcription factor suppresses the NLR immune receptor BRG8-mediated immunity in rice

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Plant Communications 2024年第10期5卷 121-138页

作者： Siliang Xu Xinghua Wei Qinqin Yang Dongxiu Hu Yuanyuan Zhang Xiaoping Yuan Fengyu Kang Zhaozhong Wu Zhiqin Yan Xueqin Luo Yanfei Sun Shan Wang Yue Feng Qun Xu Mengchen Zhang Yaolong Yang china national Center for Rice Improvement/State key Laboratory of Rice Biology and Breeding China National Rice Research InstituteHangzhou 310006China national Nanfan research Institute(Sanya) Chinese Academy of Agricultural SciencesSanya 572024China

Nucleotide-binding site and leucine-rich repeat(NLR)proteins are activated by detecting pathogen effectors,which in turn trigger host defenses and cell *** many NLRs have been identified,the mechanisms responsible for NLR-triggered defense responses are still poorly *** this study,through a genome-wide association study approach,we identified a novel NLR gene,Blast Resistance Gene 8(BRG8),which confers resistance to rice blast and bacterial blight ***8 overexpression and complementation lines exhibit enhanced resistance to both *** localization assays showed that BRG8 is localized in both the cytoplasm and the *** evidence revealed that nuclear-localized BRG8 can enhance rice immunity without a hypersensitive response(HR)-like *** also demonstrated that the coiled-coil domain of BRG8 not only physically interacts with itself but also interacts with the KNOX II protein HOMEOBOX ORYZA SATIVA59(HOS59).Knockout mutants of HOS59 in the BRG8 background show enhanced resistance to Magnaporthe oryzae strain CH171 and Xoo strain CR4,similar to that of the BRG8 *** contrast,overexpression of HOS59 in the BRG8 background will compromise the HR-like phenotype and resistance *** analysis revealed that HOS59 promotes the degradation of BRG8 via the 26S proteasome ***,our study highlights HOS59 as an NLR immune regulator that fine-tunes BRG8-mediated immune responses against pathogens,providing new insights into NLR associations and functions in plant immunity.

关键词： rice NLR protein KNOX II protein rice blast bacterial blight

初始残余应力的检测方法及其在薄壁叶片加工变形分析中的应用研究

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Transactions of Nanjing University of Aeronautics and Astronautics 2024年第2期41卷 158-173页

作者：张华赵晟强孙豪彭芳瑜闫蓉唐小卫单玉楠华中科技大学机械科学与工程学院国家数控系统工程研究中心中国武汉430074 华中科技大学机械科学与工程学院数字化制造装备与技术国家重点实验室中国武汉430074

薄壁叶片是航空发动机的关键部件,在加工过程中极易发生剧烈的变形。已有的变形研究控制重点关注在减小切削力和加工残余应力(Machining‑induced residual stress,MIRS)这两方面。本文利用材料热处理和锻造过程中产生的初始残余应力(Ini... 详细信息

薄壁叶片是航空发动机的关键部件,在加工过程中极易发生剧烈的变形。已有的变形研究控制重点关注在减小切削力和加工残余应力(Machining‑induced residual stress,MIRS)这两方面。本文利用材料热处理和锻造过程中产生的初始残余应力(Initial residual stress,IRS)来减轻薄壁零件受切削力与加工残余应力影响所产生的变形。由于初始残余应力测量困难且具有破坏性,本文提出了一种初始残余应力逆辨识方法来测量Ti6Al4V的初始残余应力。与传统的初始残余应力测量方法相比,逆辨识方法更符合应力分布和叶片变形的分布趋势。为了研究和解耦初始残余应力、加工残余应力和切削力之间对加工变形影响的相互作用,针对钛合金直纹叶片为对象进行实验验证,并建立了有限元预测模型。在分析切削力与加工残余应力对变形的影响后,可以得到切削力占变形程度的46.17%,平均值为26.36μm,而加工残余应力占变形程度的53.83%,平均值为30.70μm。耦合初始残余应力后使得整体的变形减小,受加工残余应力影响的最大挠度变形从35.32μm降低到15.50μm,该分析为利用初始残余应力减小薄壁叶片加工变形提供了新的方法。

关键词：薄壁叶片加工变形残余应力分析切削力模型

Discovery and Significance of Layered Chromite Mineralization in Mafic-Ultramafic Rocks from the Gayahe Area of the East Kunlun Orogenic Belt,Northwestern china

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Journal of Earth Science 2024年第4期35卷 1367-1372页

作者： Shao-Yong Jiang Hailin Xie Wenqi Ren Bin Wang Feng Yuan Xiufeng Liu Hui-Min Su State key Laboratory of Geological processes and Mineral Resources Collaborative Innovation Center for Exploration of Strategic Mineral ResourcesSchool of Earth ResourcesChina University of GeosciencesWuhan 430074China Qinghai Engineering research Center of Deep Exploration Technology for Large and Ultra-Large Gold Deposits around Qaidam Basin First Geological Exploration Institute of Qinghai ProvinceHaidong 810600China

0 INTRODUCTION Chromium(Cr)is one of the most important strategic critical metals in *** primary chromite deposits can be divided into two types according to their geological setting and occurrences:podiform chromite and stratiform/layered chromite(Stowe,1994;Paktunc,1990).Podiform chromites mainly occur in ophiolites or mantle peridotites(Yang et al.,2022,2010;Bao et al.,1999).

关键词： china mantle setting

Insights into plant salt stress signaling and tolerance

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Journal of Genetics and Genomics 2024年第1期51卷 16-34页

作者： Huapeng Zhou Haifan Shi Yongqing Yang Xixian Feng Xi Chen Fei Xiao Honghui Lin Yan Guo key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education College of Life SciencesSichuan UniversityChengduSichuan 610064China State key Laboratory of Plant Environmental Resilience China Agricultural UniversityBeijing 100193China College of Grassland Science Nanjing Agricultural UniversityNanjingJiangsu 210095China Xinjiang key Laboratory of Biological Resources and Genetic Engineering College of Life Science and TechnologyXinjiang UniversityUrumqiXinjiang 830046China

Soil salinization is an essential environmental stressor,threatening agricultural yield and ecological security *** soils accumulate excessive soluble salts which are detrimental to most plants by limiting plant growth and *** is of great necessity for plants to efficiently deal with the adverse effects caused by salt stress for survival and successful *** determinants of salt tolerance have been identified in plants,and the cellular and physiological mechanisms of plant salt response and adaption have been intensely *** respond to salt stress signals and rapidly initiate signaling pathways to re-establish cellular homeostasis with adjusted growth and cellular *** review summarizes the advances in salt stress perception,signaling,and response in plants.A better under-standing of plant salt resistance will contribute to improving crop performance under saline conditions using multiple engineering *** rhizosphere microbiome-mediated plant salt tolerance as well as chemical priming for enhanced plant salt resistance are also discussed in this review.

关键词： Salt stress Salt perception Salt response and signaling Plant salt tolerance Chemical priming Rhizosphere microbiome