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钢管-木-混凝土轴压短柱有限元分析

沈阳建筑大学学报（自然科学版） 2021年第2期37卷 193-201页

作者：李帼昌岳祥虎杨志坚沈阳建筑大学土木工程学院辽宁沈阳110168

目的分析钢管-木-混凝土短柱在轴压荷载作用下的力学性能,研究不同参数对其受力性能的影响规律。方法合理地选用钢材、混凝土、木材的本构关系,采用非线性有限元软件ABAQUS对钢管-木-混凝土轴压短柱进行有限元模拟,分析典型构件的荷载-... 详细信息

目的分析钢管-木-混凝土短柱在轴压荷载作用下的力学性能,研究不同参数对其受力性能的影响规律。方法合理地选用钢材、混凝土、木材的本构关系,采用非线性有限元软件ABAQUS对钢管-木-混凝土轴压短柱进行有限元模拟,分析典型构件的荷载-位移曲线。结果随着木材截面尺寸的增大,构件的初始刚度不变,极限承载力呈现小幅度增长,荷载-位移曲线下降段逐渐变缓,构件延性得到有效改善,但木材截面尺寸过大构件延性优势有所减弱;随着钢管壁厚、钢材强度和混凝土强度的增大,构件荷载-位移曲线的弹性阶段变化不明显,构件的承载力增大。结论在钢管混凝土中加入木材后,利用木芯轻质高强的特点替代核心混凝土,可以显著减轻结构自重,有效延缓混凝土裂缝的开展,改善组合柱的延性性能。

关键词：有限元模拟木材截面形式木材尺寸钢材强度混凝土强度

Revealing the promising near-room-temperature thermoelectric performance in Ag_(2)Se single crystals

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Journal of Materiomics 2023年第4期9卷 754-761页

作者： Siqi Lin Linlin Guo xianghu Wang yue Liu Yuying Wu Rongbin Li Hezhu Shao Min Jin College of Materials Shanghai Dianji UniversityShanghai201306China School of Materials and Chemistry University of Shanghai for Science and TechnologyShanghai200093China College of Electrical and Electronic Engineering Wenzhou UniversityWenzhou325035China

With high carrier mobility and intrinsic low lattice thermal conductivity,Ag_(2)Se compounds have attracted increasing attention for thermoelectric application near room *** to its phase transition at~406 K and resulting thermal volume expansion,the growth and thermoelectric properties of large-sized Ag_(2)Se single crystals have seldom been reported so *** this work,the vertical Bridgeman method was used for growing bulk Ag_(2)Se single crystal,with an orientation preference along lowsymmetric(201)*** Hall mobility as high as 2000 cm^(2)/(V·s)and weak electron-phonon coupling contributes to a high electronic quality BE of~7.0 in near-room-temperature b-Ag_(2)Se single crystals,which is superior to the high-temperature phase a-Ag_(2)*** observed low lattice thermal conductivity of 0.8 W/(m·K)at 300 K is due to the low group speeds and strong anharmonicity.A promising peak zT of 0.66 at 375 K and an average zT of 0.65 at 300-375 K were realized in b-Ag_(2)Se *** low Vickers hardness and good ductile properties were confirmed by experiment and theoretical *** work not only synthesized large-sized and highly-orientated Ag_(2)Se crystals,but also revealed its great potential of thermoelectric performance and mechanical properties for various applications near room temperature.

关键词： Thermoelectrics Single crystals High electronic quality factor Low lattice thermal conductivity Near-room-temperature

基于VB和Excel的油液污染仪检测数据的采集和保存

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机床与液压 2011年第4期39卷 111-113页

作者：卢继霞张翔虎邹殿龙于跃张喻召中国矿业大学(北京)机电与信息工程学院北京100083

利用VB6.0开发串行通信程序,实现对油液污染仪检测数据的实时采集和显示,并通过在VB中引用Excel实现对采集数据的保存,为后续的数据分析工作奠定了基础。

关键词：串行通信数据采集和保存 Visual Basic

WTA·xianghu Dialogue 2020 Held in China

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China & The World Cultural Exchange 2020年第12期86卷 38-39页

作者： Gu yue 不详

The"World Tourism Alliance(WTA)·xianghu Dialogue 2020"was held in Hangzhou,Zhejiang Province,China from November 13 to 14,***"Shaping the Future:Rebuilding Confidence&Embracing the New Normal in Travel&Tourism",the two-days event invited experts,scholars and professionals from 24 countries and regions to discuss the development of tourism under the impact of COVID-19.

关键词： Alliance Xiang Confidence

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机匣法兰螺栓连接建模和密封性能分析

航空工程进展 2021年第2期12卷 143-149页

作者：曾祥虎许瑛张悦徐张桓南昌航空大学飞行器工程学院南昌330063

由于燃烧室机匣法兰螺栓连接处存在漏油问题,影响发动机的使用寿命和工作性能,还会污染环境、浪费油料。基于悬臂梁挠度变形理论,采用解析法推导螺栓连接结构挠度变形方程,建立优化连接结构密封设计的方法;在ANSYS中建立机匣螺栓连接精... 详细信息

由于燃烧室机匣法兰螺栓连接处存在漏油问题,影响发动机的使用寿命和工作性能,还会污染环境、浪费油料。基于悬臂梁挠度变形理论,采用解析法推导螺栓连接结构挠度变形方程,建立优化连接结构密封设计的方法;在ANSYS中建立机匣螺栓连接精细有限元模型,计算法兰结合面在不同载荷形式下的轴向间隙分布;采用加强连接密封性的实施方案,通过数值模拟分析不同厚度密封圈的封严效果。结果表明:本文推导的方程能计算出法兰连接结构受载变形量,适用于连接结构密封优化,采用的方案能够解决实际工程应用中机匣法兰螺栓连接处漏油问题。

关键词：机匣螺栓连接漏油轴向间隙密封性

Phosphorylation of KAT-2B by WKS1/Yr36 redirects the lipid flux to jasmonates to enhance resistance against wheat stripe rust

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Journal of Genetics and Genomics 2023年第11期50卷 872-882页

作者： Yan Yan Xiao-Ming Li Yun Chen Tian-Tian Wu Ci-Hang Ding Mei-Qi Zhang yue-Ting Guo Chu-Yang Wang Junli Zhang Xuebin Zhang Awais Rasheed Shengchun Xu Meng-Lu Wang Zhongfu Ni Qixin Sun 缑金营 Frontiers Science Center for Molecular Design Breeding(MOE) China Agricultural UniversityBeijing 100193China xianghu Laboratory HangzhouZhejiang 311231China School of Life Sciences Fudan UniversityShanghai 200438China Institute of Metabolism and Integrative Biology Fudan UniversityShanghai 200438China State Key Laboratory of Crop Stress Adaptation and Improvement Henan Joint International Laboratory for Crop Multi-Omics ResearchSchool of Life SciencesHenan UniversityKaifengHenan 475004China International Maize and Wheat Improvement Center(CIMMYT) Chinese Academy of Agricultural SciencesBeijing 100081China

Wheat(Triticum aestivum)is one of the most essential human energy and protein ***,wheat production is threatened by devastating fungal diseases such as stripe rust,caused by Puccinia striiformis ***(Pst).Here,we reveal that the alternations in chloroplast lipid profiles and the accumulation of jasmonate(JA)in the necrosis region activate JA signaling and trigger the host *** collapse of chloroplasts in the necrosis region results in accumulations of polyunsaturated membrane lipids and the lipid-derived phytohormone JA in transgenic lines of Yr36 that encodes Wheat Kinase START 1(WKS1),a high-temperature-dependent adult plant resistance ***1.1,a protein encoded by a full-length splicing variant of WKS1,phosphorylates and enhances the activity of keto-acyl thiolase(KAT-2B),a critical enzyme catalyzing theβ-oxidation reaction in JA *** premature stop mutant,kat-2b,accumulates less JA and shows defects in the host defense against ***,overexpression of KAT-2B results in a higher level of JA and limits the growth of ***,JA inhibits the growth and reduces pustule densities of *** study illustrates the WKS1.1-KAT-2B-JA pathway for enhancing wheat defense against fungal pathogens to attenuate yield loss.

关键词： Wheat Stripe rust Cell death Jasmonate Hostdefense

山东省2017年梅毒血清学检测室间质量评价结果分析

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中国麻风皮肤病杂志 2018年第11期34卷 663-664,668页

作者：李富容温晶刘丹璇于永翔赵晓婷徐祥虎岳珊魏宇宁何艳青济南大学山东省医学科学院医学与生命科学学院济南250062 山东省皮肤病医院山东省皮肤病性病防治研究所济南250022

目的:评价山东省二级以上医疗机构、妇幼机构与疾控机构性病实验室梅毒血清学检测能力。方法:梅毒盲样统一采购,分发至560家参评机构,要求进行梅毒螺旋体血清学(TT)定性实验和非梅毒螺旋体血清学(NTT)定性和定量实验,将回报的检测结果... 详细信息

目的:评价山东省二级以上医疗机构、妇幼机构与疾控机构性病实验室梅毒血清学检测能力。方法:梅毒盲样统一采购,分发至560家参评机构,要求进行梅毒螺旋体血清学(TT)定性实验和非梅毒螺旋体血清学(NTT)定性和定量实验,将回报的检测结果进行统计分析。结果:560家参评机构中优秀536家(95.71%),合格19家(3.39%),不合格5家(0.89%);梅毒螺旋体血清学实验总体符合率为99.82%,非梅毒螺旋体血清学实验定性、定量符合率分别为98.54%和96.43%。结论:各参评机构梅毒血清学检测整体较好,但性病实验室规范化建设需进一步加强。

关键词：梅毒血清学检测室间质量评价

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花生黄曲霉毒素产毒菌种群区系和地理分布

农业环境科学学报 2022年第12期41卷 2577-2583页

作者：白艺珍岳晓凤张奇李培武中国农业科学院油料作物研究所武汉430062 农业农村部油料作物生物学与遗传育种重点实验室武汉430062 湖北洪山实验室武汉430062 湘湖实验室杭州310021 农业农村部生物毒素检测重点实验室武汉430062 国家农业检测基准实验室(生物毒素) 武汉430062 农业农村部油料产品质量安全风险评估实验室(武汉) 武汉430062

花生是我国重要的食油兼用作物,黄曲霉及其毒素分布广、危害大,可贯穿田间、储藏、加工、流通多环节,是威胁花生质量安全的主要风险因子之一。土壤黄曲霉菌和寄生曲霉菌是花生感染产毒的主要源头,系统研究花生田间黄曲霉菌和寄生曲霉菌... 详细信息

花生是我国重要的食油兼用作物,黄曲霉及其毒素分布广、危害大,可贯穿田间、储藏、加工、流通多环节,是威胁花生质量安全的主要风险因子之一。土壤黄曲霉菌和寄生曲霉菌是花生感染产毒的主要源头,系统研究花生田间黄曲霉菌和寄生曲霉菌的分布,对开展花生黄曲霉毒素污染预警和绿色防控意义重大。本文重点研究论述了花生田间黄曲霉菌和寄生曲霉菌分布的影响因素和种群生物地理分布特征等,提出了当前土壤黄曲霉菌和寄生曲霉菌分布研究中存在的问题和未来重点研究方向。

关键词：黄曲霉菌寄生曲霉菌土壤分布花生

Precision Higgs physics at the CEPC

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Chinese Physics C 2019年第4期43卷 5-44页

作者： Fenfen An Yu Bai Chunhui Chen Xin Chen Zhenxing Chen Joao Guimaraes da Costa Zhenwei Cui Yaquan Fang Chengdong Fu Jun Gao Yanyan Gao Yuanning Gao Shaofeng Ge Jiayin Gu Fangyi Guo Jun Guo Tao Han Shuang Han Hongjian He Xianke He Xiaogang He Jifeng Hu Shih-Chieh Hsu Shan Jin Maoqiang Jing Susmita Jyotishmati Ryuta Kiuchi Chia-Ming Kuo Peizhu Lai Boyang Li Congqiao Li Gang Li Haifeng Li Liang Li Shu Li Tong Li Qiang Li Hao Liang Zhijun Liang Libo Liao Bo Liu Jianbei Liu Tao Liu Zhen Liu Xinchou Lou Lianliang Ma Bruce Mellado Xin Mo Mila Pandurovic Jianming Qian Zhuoni Qian Nikolaos Rompotis Manqi Ruan Alex Schuy Lianyou Shan Jingyuan Shi Xin Shi Shufang Su Dayong Wang Jin Wang Liantao Wang Yifang Wang Yuqian Wei yue Xu Haijun Yang Ying Yang Weiming Yao Dan Yu Kaili Zhang Zhaoru Zhang Mingrui Zhao xianghu Zhao Ning Zhou Institute of High Energy Physics Department of Physics and Astronomy Iowa State University Department of Physics Southeast University Department of Engineering Physics Physics Department Tsinghua University School of Physics Peking University University of Chinese Academy of Science (UCAS) Physical Science Laboratory Huairou National Comprehensive Science Center School of Physics and Astronomy Shanghai Jiao Tong University KLPPAC-MoE SKLPPC Department of Physics University of Liverpool Kavli IPMU (WPI) UTIAS The University of Tokyo Department of Physics University of California PRISMA Cluster of Excellence & Mainz Institute of Theoretical Physics Johannes Gutenberg-Universit?t Mainz Department of Modern Physics University of Science and Technology of China Department of Physics & Astronomy University of Pittsburgh Tsung-Dao Lee Institute Department of Physics National Taiwan University Department of Physics University of Washington Department of Physics Nanjing University School of Nuclear Science and Technology University of South China Department of Physics University of Texas at Dallas Department of Physics and Center for High Energy and High Field Physics National Central University Institute of Frontier and Interdisciplinary Science and Key Laboratory of Particle Physics and Particle Irradiation (MOE) Shandong University Department of Physics Hong Kong University of Science and Technology Theoretical Physics Department Fermi National Accelerator Laboratory Maryland Center for Fundamental Physics Department of Physics University of Maryland School of Physics and Institute for Collider Particle Physics University of the Witwatersrand iThemba LABS National Research Foundation Vinca Institute of Nuclear Sciences University of Belgrade Department of Physics University of Michigan Center for Theoretical Physics of the Universe Institute of Basic Science Department of Physics University of Arizona Department of Physics University of Chicago Lawrence Berkeley National Laboratory Chi

The discovery of the Higgs boson with its mass around 125 GeV by the ATLAS and CMS Collaborations marked the beginning of a new era in high energy *** Higgs boson will be the subject of extensive studies of the ongoing LHC *** the same time,lepton collider based Higgs factories have been proposed as a possible next step beyond the LHC,with its main goal to precisely measure the properties of the Higgs boson and probe potential new physics associated with the Higgs *** Circular Electron Positron Collider(CEPC)is one of such proposed Higgs *** CEPC is an e^+e^- circular collider proposed by and to be hosted in *** in a tunnel of approximately 100 km in circumference,it will operate at a center-of-mass energy of 240 GeV as the Higgs *** this paper,we present the first estimates on the precision of the Higgs boson property measurements achievable at the CEPC and discuss implications of these measurements.

关键词： CEPC Higgs bos on Higgs boson properties Higgs boson couplings Higgs factory effective field theory,EFT