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C微合金化对Fe-Mn-Cr-Ni中熵合金微观结构和力学性能的影响

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金属热处理 2024年第6期49卷 206-210页

作者：李娜孙书刚杨建春汪淇南通理工学院机械工程学院江苏南通226001

采用真空电弧熔炼和铜模吸铸法制备了Fe_(50)Mn_(25)Cr_(15)Ni_(10)和(Fe_(50)Mn_(25)Cr_(15)Ni_(10))_(99)C_(1)中熵合金,随后将合金进行室温轧制80%,并在900℃进行退火,通过XRD、SEM及EBSD等检测设备研究了C微合金化对合金微观组织和力学性能的影响。结果表明,Fe_(50)Mn_(25)Cr_(15)Ni_(10)和(Fe_(50)Mn_(25)Cr_(15)Ni_(10))_(99)C_(1)中熵合金为FCC单相结构,添加C元素后,合金的晶粒细化。900℃×10 min退火的合金,在室温下(25℃)的屈服强度和抗拉强度由381、586 MPa提高至535、756 MPa,低温下(-196℃)的屈服强度和抗拉强度由687、1114 MPa提高至980、1352 MPa。随着温度由25℃降至-196℃,(Fe_(50)Mn_(25)Cr_(15)Ni_(10))_(99)C_(1)中熵合金的强度和塑性同时得到提高,具有较佳的强塑积,主要归因于C元素的添加所引起的细晶强化、固溶强化和位错增殖。

关键词：中熵合金微合金化微观结构力学性能

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高校思政课融入民族自信教育研究

淮南职业技术学院学报 2024年第2期24卷 1-3页

作者：杨建春苏州工艺美术职业技术学院江苏苏州215000

高校思政课对大学生进行民族自信教育是落实立德树人根本任务的要求。其主要内容体现在增强学生对民族自信的全面认知,增强学生对民族自信的深厚情感,增强学生对民族自信的坚定意志,增强学生对民族自信的行动自觉。其主要路径包括在教... 详细信息

高校思政课对大学生进行民族自信教育是落实立德树人根本任务的要求。其主要内容体现在增强学生对民族自信的全面认知,增强学生对民族自信的深厚情感,增强学生对民族自信的坚定意志,增强学生对民族自信的行动自觉。其主要路径包括在教学目标上着力提高民族自信教育引领力,在教学内容上着力提高民族自信教育渗透力,在教学形式上着力提高民族自信教育吸引力,在教师素质上着力提高民族自信教育驾驭力。通过教育教学大力增强民族自信,振奋民族精神,凝聚起奋发向上的力量。

关键词：高校思政课民族自信教育内容及路径

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优质多抗小麦新品种扬麦28的高产栽培技术

中国种业 2024年第1期 160-162页

作者：杨小康杨呈芹刘定忠刘金钰杨建春江苏省宝应县农业农村局宝应225589 江苏里下河地区农业科学研究所扬州225007 江苏金土地种业有限公司扬州225007

扬麦28是江苏里下河地区农业科学研究所和江苏金土地种业有限公司联合培育的长江中下游冬小麦新品种,于2018年通过国家农作物品种审定委员会审定,审定编号:国审麦20180010,其综合抗性好,品质优,产量高。对扬麦28的品种特征特性、产量表... 详细信息

扬麦28是江苏里下河地区农业科学研究所和江苏金土地种业有限公司联合培育的长江中下游冬小麦新品种,于2018年通过国家农作物品种审定委员会审定,审定编号:国审麦20180010,其综合抗性好,品质优,产量高。对扬麦28的品种特征特性、产量表现以及主要高产配套栽培技术进行介绍,以便更好地推广该优良品种,发挥品种生产优势,满足现代农业生产提质增效发展需要。

关键词：优质小麦扬麦28 栽培技术

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河西地区良种肉羊高效繁育技术及生产应用

畜牧兽医杂志 2024年第4期43卷 74-76页

作者：盛学吉杨建春吴建强张磊张掖市畜牧技术推广站甘肃张掖734000

大力发展养羊业,繁育技术也是关键环节之一。科学引进和运用肉羊的高效繁殖方法,能够减少世代时间、减少繁殖投入、提高遗传效果、增加良种群体,实现高繁扩量、提高生产力、实现节本增效的目标,同时促进产业向标准化、规模化、高质量方... 详细信息

大力发展养羊业,繁育技术也是关键环节之一。科学引进和运用肉羊的高效繁殖方法,能够减少世代时间、减少繁殖投入、提高遗传效果、增加良种群体,实现高繁扩量、提高生产力、实现节本增效的目标,同时促进产业向标准化、规模化、高质量方向迈进。本文结合河西地区生产实际,主要论述良种肉羊高效繁育技术。

关键词：良种肉羊繁育技术应用

An optical fiber methane gas sensing film sensor based on core diameter mismatch

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Chinese Optics Letters 2010年第5期8卷 482-484页

作者：杨建春徐龙君陈伟民 Key Laboratory for Optoelectronic Technology and Systems Ministry of EducationCollege of Optoelectronic EngineeringChongqing University Key Laboratory for the Exploitation of Southwest Resources and Environmental Disaster Control Engineering Ministry of Education Chongqing University Key Laboratory for the Exploitation of Southwest Resources and Environmental Disaster Control Engineering Ministry of EducationChongqing University

An optical fiber evanescent wave methane gas sensor based on core diameter mismatch is *** sensor consists of a multimode fiber in which a short section of standard single-mode fiber,coated with the inclusion of cryptophane molecules E in a transparent polysiloxane film,is *** sensing principle is analyzed by optical waveguide *** different sensing film thicknesses and interaction lengths,the sensor signal is investigated within the methane concentration range of 0-14.5%（v/v）.It is shown that the sensor signal with the thickness of 5μm and the interaction length of 3 mm strengthens linearly with the increasing concentration of methane,with a slope of *** best detection limit of the sensor for methane is 2.2%（v/v） with a response time of 90 *** sensor is suitable for the detection of methane concentration below the critical value of 5%.

关键词： Fibers Gas detectors Methanation Methane Multimode fibers Optical fibers Optical waveguides Signal detection Silicones

Characteristics of the multiple replicon plasmid IncX1-X1 in multidrug-resistant Escherichia coli from Malayan pangolin(Manis javanica)

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Integrative Zoology 2023年第2期18卷 289-298页

作者： Fang JI Shelan LIU Xue WANG Jianan ZHAO Jiayue ZHU jianchun yang Chenglin ZHANG Zhongxin JIA Ruili ZHAO Guocheng HU Jing WANG Jianhua QIN Gang LI Bin WU Chengmin WANG Guangdong Key Laboratory of Animal Conservation and Resource Utilization Guangdong Public Laboratory of Wild Animal Conservation and UtilizationInstitute of ZoologyGuangdong Academy of ScienceGuangzhouChina Department of Infectious Diseases Zhejiang Center of Disease Control and PreventionHangzhouZhejiangChina School of Bioengineering East China University of Science and TechnologyShanghaiChina Beijing Key Laboratory of Captive Wildlife Technologies Beijing ZooBeijingChina College of Animal Science and Veterinary Medicine Tianjin Agricultural UniversityTianjinChina South China Institute of Environmental Sciences Ministry of Ecology and EnvironmentGuangzhouChina Department of Infectious Diseases Hangzhou Center of Disease Control and PreventionHangzhouChina College of Veterinary Medicine Agricultural University of HebeiBaodingChina

Potential zoonotic pathogens may be transmitted from wildlife to humans through the illegal wild meat trade,which has become a pressing ***,research on the antimicrobial resistance genes(ARGs)of Malayan pangolin(Manis javanica)intestinal bacteria is ***,multidrug-resistant Escherichia coli M172-1(ST354)isolated from Malayan pangolin feces in 2019 was found to be resistant to 13 *** analysis revealed 4 plas-mids,namely,pM172-1.1,pM172-1.2,pM172-1.3,and pM172-1.4,in the *** pM172-1.2,pM172-1.3,and pM172-1.4 plasmids carried ARGs,namely,IncHI2-HI2A,IncX1-X1,and IncX1,***172-1.3 and pM172-1.4 contained intact IntI1 integrons(Is26/IntI1/arr2/cmlA5/blaOXA-10/ant(3′′)-IIA/dfrA14/Is26).No-tably,pM172-1.3 resulted from the fusion of 2 pM172-1.4 copies and carried many more *** addition to pM172-1.3 from the same host,other drug-resistant bacteria(*** M159-1(ST48),*** S171-1(ST206),and Klebsiella pneumoniae S174-1(ST2354))in the same Malayan pangolin fecal samples also carried 3 plasmids with 100%gene coverage of pM172-1.4 and 99.98%***,ARGs in IncX1 might spread in the intestinalﬂora of Malayan pangolin and between species via the illegal food chain,posing a potential threat to public health and safety.

关键词： ARG Manis javanica multiple-replicon plasmid IncX1-X1 plasmid IncX1

Coupling of Adhesion and Anti‑Freezing Properties in Hydrogel Electrolytes for Low‑Temperature Aqueous‑Based Hybrid Capacitors

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Nano-Micro Letters 2024年第2期16卷 15-31页

作者： Jingya Nan Yue Sun Fusheng yang Yijing Zhang Yuxi Li Zihao Wang Chuchu Wang Dingkun Wang Fuxiang Chu Chunpeng Wang Tianyu Zhu jianchun Jiang Institute of Chemical Industry of Forest Products Chinese Academy of ForestryKey Laboratory of Biomass Energy and MaterialJiangsu ProvinceNanjing 210042JiangsuPeople’s Republic of China Co‑Innovation Center of Efficient Processing and Utilization of Forest Resources Nanjing Forestry UniversityNanjing 210037JiangsuPeople’s Republic of China Energy Technologies Area Lawrence Berkeley National LaboratoryBerkeleyCA 94720USA Department of Materials Science and Engineering Clemson UniversityClemsonSC 29634USA

Solid-state zinc-ion capacitors are emerging as promising candidates for large-scale energy storage owing to improved safety,mechanical and thermal stability and easy-to-direct *** electrolytes are appealing solid-state electrolytes because of eco-friendliness,high conductivity and intrinsic ***,the electrolyte/electrode interfacial contact and anti-freezing properties of current hydrogel electrolytes are still challenging for practical applications of zinc-ion ***,we report a class of hydrogel electrolytes that couple high interfacial adhesion and anti-freezing *** synergy of tough hydrogel matrix and chemical anchorage enables a well-adhered interface between hydrogel electrolyte and ***,the cooperative solvation of ZnCl2 and LiCl hybrid salts renders the hydrogel electrolyte high ionic conductivity and mechanical elasticity simultaneously at low *** significantly,the Zn||carbon nanotubes hybrid capacitor based on this hydrogel electrolyte exhibits low-temperature capacitive performance,delivering high-energy density of 39 Wh kg^(-1)at-60°C with capacity retention of 98.7%over 10,000 *** the benefits of the well-adhered electrolyte/electrode interface and the anti-freezing hydrogel electrolyte,the Zn/Li hybrid capacitor is able to accommodate dynamic deformations and function well under 1000 tension cycles even at-60°*** work provides a powerful strategy for enabling stable operation of low-temperature zinc-ion capacitors.

关键词： Interfacial adhesion Anti-freezing Hydrogel electrolytes Low-temperature hybrid capacitors Dynamic deformati

Unraveling the regulatory network of flower coloration in soybean:Insights into roles of GmMYBA3 and GmMYBR1

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The Crop Journal 2024年第2期12卷 443-455页

作者： Ruifang Gao Yueqing Li Yanan Wang Xiaotong Shan Siqi yang Ye Zhang Saiyu Ma Chunbao Zhang jianchun Qin Li Wang Xiang Gao College of Plant Science Jilin UniversityChangchun 130062JilinChina Key Laboratory of Molecular Epigenetics of MOE and Institute of Genetics&Cytology Northeast Normal UniversityChangchun 130024JilinChina Soybean Research Institute National Engineering Research Center for SoybeanJilin Academy of Agricultural SciencesChangchun 130033JilinChina

Anthocyanins play crucial roles in pollen protection and pollinator attraction in flowering ***,the mechanisms underlying flower color determination and whether floral anthocyanin regulators participate in other processes remain largely unresolved in soybeans(Glycine max).In this study,we investigated the genetic components and mechanisms governing anthocyanin biosynthesis in soybean *** and genetic studies have characterized two antagonistic regulators,the positive activator GmMYBA3 and the negative repressor GmMYBR1,that modulate the gene expression of anthocyanin biosynthesis in soybean *** findings revealed a regulatory interplay between GmMYBA3 and GmMYBR1 bridged by GmTT8a,highlighting the complexity of anthocyanin regulation in different soybean *** of additional soybean cultivars demonstrated the universality of GmMYBA3 and GmMYBR1 in regulating floral anthocyanin biosynthesis-related genes,with GmF3’5’H identified as a crucial determinant of white flower *** study provides a molecular mechanism underlying soybean flower color determination,paving the way for the molecular modification of soybean flowers to probably enhance their resistance to abiotic stresses and attractiveness to pollinators.

关键词： Anthocyanin Flower color determination MBW complex MYB repressor Pleiotropic regulator

Multidrug-resistant Proteus mirabilis isolates carrying blaOXA-1 and blaNDM-1 from wildlife in China:increasing public health risk

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Integrative Zoology 2021年第6期16卷 798-809页

作者： Qian KANG Xue WANG Jianan ZHAO Zhihui LIU Fang JI Han CHANG jianchun yang Shijia HU Ting JIA Xiaojia WANG Jiagui TANG Guoying DONG Guocheng HU Jing WANG Yanyu ZHANG Jianhua QIN Chengmin WANG Guangdong Key Laboratory of Animal Conservation and Resource Utilization Guangdong Public Laboratory of Wild Animal Conservation and UtilizationInstitute of ZoologyGuangdong Academy of ScienceGuangzhouGuangdongChina College of Veterinary Medicine Agricultural University of HebeiBaodingHebeiChina Institute of zoology Chinese Academy of SciencesBeijingChina Beijing Key Laboratory of Captive Wildlife Technologies Beijing ZooBeijingChina Chongqing Zoo Chongqing College of Global Change and Earth System Science Beijing Normal UniversityBeijingChina South China Institute of Environmental Sciences Ministry of Ecology and EnvironmentGuangzhouGuangdongChina Department of Infectious Diseases Hangzhou Center of Disease Control and PreventionZhejiangChina Beijing Key Laboratory of Blood Safety and Supply Technologies Institute of Health Service and Transfusion MedicineBeijingChina

The emergence of multidrug resistance(MDR)in Proteus mirabilis clinical isolates is a growing public health concern and has serious implications for *** is the role of wildlife has been become one of the hot issues in disseminating antimicrobial ***,54 *** isolates from 12 different species were *** them,25 isolates were determined to be MDR by profile of antimicrobial susceptibility;10 MDR *** isolates were subjected to comparative genomic analysis by whole genome *** analysis showed that chromosome of *** isolates mainly carries multidrug-resistance complex elements harboring resistance to carbapenem genes blaOXA-1,blaNDM-1,and *** I integron is the insertion hotspot of IS26;it can be inserted into type I integron at different sites,thus forming a variety of multiple drug resistance decision *** the same time,Tn21,Tn7,and SXT/R391 mobile elements cause widespread spread of these drug resistance *** conclusion,*** isolates from wildlife showed higher resistance to commonly used clinic drugs comparing to those from ***,wild animals carrying MDR clinical isolates should be paid attention to by the public health.

关键词： blaNDM-1 blaOXA-1 multidrug-resistant Proteus mirabilis wildlife