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基于GJO特征量优选的AO-RF的变压器故障诊断模型

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高压电器 2024年第5期60卷 99-107页

作者：叶育林刘森黄松韩晓慧杜振斌李彬吕杰薛杨赵春琳中广核工程有限公司广东深圳518124 河北科技大学电气工程学院石家庄050018 保定天威保变电气股份有限公司河北省输变电装备电磁与结构性能重点实验室河北保定071056 保定天威新域科技发展有限公司河北保定071056 河北卫讯电力自动化设备有限公司河北衡水053000

在变压器故障诊断过程中,进行合理的特征优选,将有助于提高诊断模型的诊断精度,为此,文中提出了一种基于金豺优化算法(golden Jackal optimization,GJO)特征量优选与AO-RF的变压器故障诊断模型。首先,采用GJO对构建的21维变压器油中溶... 详细信息

在变压器故障诊断过程中,进行合理的特征优选,将有助于提高诊断模型的诊断精度,为此,文中提出了一种基于金豺优化算法(golden Jackal optimization,GJO)特征量优选与AO-RF的变压器故障诊断模型。首先,采用GJO对构建的21维变压器油中溶解气体特征量进行优选;然后,根据GJO得到的特征优选结果,采用天鹰算法(aquila optimizer,AO)优化随机森林(random forest,RF)的变压器故障诊断模型对变压器故障进行诊断,并与不同特征量、不同故障诊断模型的诊断结果进行了对比。实验结果表明:GJO优选特征量相比21维原始特征、三比值法、无编码比值法以及AO优选特征量的故障诊断准确率可提高1.12%~25.78%,kappa系数可提高0.02~0.24;AO-RF故障诊断模型较RF、SVM、ELM、SSA-RF、WOA-RF、GJO-RF模型的诊断准确率可提高1.84%~15.86%,kappa系数可提高0.02~0.16,验证了所提方法的有效性和准确性。

关键词：变压器故障诊断金豺算法随机森林天鹰算法

ON CONTINUATION CRITERIA FOR THE FULL COMPRESSIBLE NAVIER-STOKES EQUATIONS IN LORENTZ SPACES

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Acta Mathematica Scientia 2022年第2期42卷 671-689页

作者： Yanqing WANG Wei WEI Gang WU yulin ye Department of Mathematics and Information Science Zhengzhou University of Light IndustryZhengzhou 450002China Center for Nonlinear Studies School of MathematicsNorthwest UniversityXi’an 710127China School of Mathematical Sciences University of Chinese Academy of SciencesBeijing 100049China School of Mathematics and Statistics Henan UniversityKaifeng 475004China

In this paper,we derive several new sufficient conditions of the non-breakdown of strong solutions for both the 3D heat-conducting compressible Navier-Stokes system and nonhomogeneous incompressible Navier-Stokes ***,it is shown that there exists a positive constantεsuch that the solution(ρ,u,θ)to the full compressible Navier-Stokes equations can be extended beyond t=T provided that one of the following two conditions holds:(1)ρ∈L^(∞)(0,T;L^(∞)(R^(3)),u∈L^(p,∞)(0,T;L^(q,∞)(R^(3)))and ||u||_(L^(p,∞)(0,T;L^(q,∞)(R^(3))))≤ε,with 2/p+3/q=1,q>3;(0.1)(2)λ3/2(0.2)To the best of our knowledge,this is the first continuation theorem allowing the time direction to be in Lorentz spaces for the compressible ***,we establish some blow-up criteria in anisotropic Lebesgue spaces for the finite blow-up time T^(*):(1)assuming that the pair(p,q) satisfies 2/p+1/q_(1)+1/q_(2)+1/q_(3)=1(1

关键词： Navier-Stokes equations strong solutions regularity

LOCAL WELL-POSEDNESS TO THE CAUCHY PROBLEM OF THE 3-D COMPRESSIBLE NAVIER-STOKES EQUATIONS WITH DENSITY-DEPENDENT VISCOSITY

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Acta Mathematica Scientia 2014年第3期34卷 851-871页

作者：叶嵎林窦昌胜酒全森 School of Mathematical Sciences Capital Normal University School of Statistics Capital University of Economics and Business LCP Institute of Applied Physics and Computational Mathematics

In this article, we prove the local existence and uniqueness of the classical solution to the Cauchy problem of the 3-D compressible Navier-Stokes equations with large initial data and vacuum, if the shear viscosity μ is a positive constant and the bulk viscosity λ（ρ） = ρ^β with β≥0. Note that the initial data can be arbitrarily large to contain vacuum states.

关键词： Existence and uniqueness classical solution compressible Navier-Stokes equations densitv-deoendent viscosity vacuum

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双头单螺杆泵定子衬套热力耦合研究

中南大学学报（自然科学版） 2017年第11期48卷 2907-2912页

作者：韩传军郑继鹏叶玉麟陈飞西南石油大学机电工程学院四川成都610500

为研究稠油热采工况下橡胶衬套的温升机理,对高温、含砂稠油工况下螺杆泵的定子橡胶衬套进行摩擦学试验。基于传热学原理,运用有限元方法对双头单螺杆泵橡胶衬套进行热力耦合研究,分析定子橡胶衬套温度场和热应力、应变的变化规律,并研... 详细信息

为研究稠油热采工况下橡胶衬套的温升机理,对高温、含砂稠油工况下螺杆泵的定子橡胶衬套进行摩擦学试验。基于传热学原理,运用有限元方法对双头单螺杆泵橡胶衬套进行热力耦合研究,分析定子橡胶衬套温度场和热应力、应变的变化规律,并研究转速、过盈量、摩擦因数等因素对定子衬套热力耦合的影响。研究结果表明:考虑橡胶滞后生热作用,衬套的温度呈椭圆形分布,沿中心向外递减;衬套的温升,最大热应力和最大位移随转速、过盈量的增大而增大,随摩擦因数的增大而减小;摩擦因数对衬套的热力耦合场影响相对较小。

关键词：双头单螺杆泵定子衬套摩擦试验热力耦合有限元方法

MICROCOMPUTERIZED MEASUREMENT AND ANALYSIS OF ELECTRON EMISSION PROPERTIES OF THERMIONIC CATHODES

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Journal of Electronics(China) 1989年第3期6卷 272-281页

作者：曾海山杨凌云叶毓林 Institute of Electronics Academia SinicaBeijing

A microcomputerized measurement system is *** system automatically acquiresan I-V characteristic curve in 5 seconds with the accuracy of 0.05％ FSR(full scale range).The Schottkyextrapolation field-free emission,the inflection-point emission,the flection-point emission,the average effec-tive work *** Richardson work function,the work function distribution at the operation tempera-ture and other important information that reflects properties of cathodes are obtained by this *** re-sults of analysing four types of cathodes demonstrate that this system is very suitable for measuring the activi-ty changes of the cathode in the processes of activation,ageing,poisoning and life *** is proved that thissystem can also be used to monitor the actlvity of the cathode in the assembled tube by measuring a gridcontrolled travelling-wave tube.

关键词： Thermionic cathode Measurement of thermionic emission properties Work function distribution Inflection-point emission Flection-point emission Application of microcomputer

The OsWRKY72-OsAAT30/OsGSTU26 module mediates reactive oxygen species scavenging to drive heterosis for salt tolerance in hybrid rice

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Journal of Integrative Plant Biology 2024年第4期66卷 709-730页

作者： Citao Liu Bigang Mao Yanxia Zhang Lei tian Biao Ma Zhuo Chen Zhongwei Wei Aifu Li ye Shao Gongye Cheng Lingling Li Wenyu Li Di Zhang Xiaoping Ding Jiangxiang Peng yulin Peng Jiwai He Nenghui ye Dingyang Yuan Chengcai Chu Meijuan Duan Hunan Provincial Key Laboratory of Stress Biology College of AgricultureHunan Agricultural UniversityChangsha 410128China State Key Laboratory of Hybrid Rice Hunan Hybrid Rice Research CenterChangsha 410125China College of Agriculture South China Agricultural UniversityGuangzhou 510642China State Key Laboratory of Wheat and Maize Crop Science Center for Crop Genome EngineeringCollege of AgronomyHenan Agricultural UniversityZhengzhou 450002China College of Horticulture Fujian Agriculture and Forestry UniversityFuzhou 350002China Department of Computational Medicine and Bioinformatics University of MichiganAnn ArborMI 48109 USA Biobin Data Science Co. Ltd.Changsha 410221China

Hybrid rice(Oryza sativa)generally outperforms its inbred parents in yield and stress tolerance,a phenomenon termed heterosis,but the underlying mechanism is not completely ***,we combined transcriptome,proteome,physiological,and heterosis analyses to examine the salt response of super hybrid rice Chaoyou1000(CY1000).In addition to surpassing the mean values for its two parents(mid-parent heterosis),CY1000 exhibited a higher reactive oxygen species scavenging ability than both its parents(over-parent heterosis or heterobeltiosis).Nonadditive expression and allele-specific gene expression assays showed that the glutathione S-transferase gene OsGSTU26 and the amino acid transporter gene OsAAT30 may have major roles in heterosis for salt tolerance,acting in an overdominant fashion in ***,we identified OsWRKY72 as a common transcription factor that binds and regulates OsGSTU26 and *** salt-sensitive phenotypes were associated with the OsWRKY72^(paternal)genotype or the OsAAT30^(maternal)genotype in core rice germplasm ***72^(paternal)specifically repressed the expression of OsGSTU26 under salt stress,leading to salinity sensitivity,while OsWRKY72^(maternal)specifically repressed OsAAT30,resulting in salinity *** results suggest that the OsWRKY72-OsAAT30/OsGSTU26 module may play an important role in heterosis for salt tolerance in an overdominant fashion in CY1000 hybrid rice,providing valuable clues to elucidate the mechanism of heterosis for salinity tolerance in hybrid rice.

关键词： allele-specific gene expression(ASE) heterosis hybrid rice nonadditive effect(NAE) salt tolerance transcriptome and proteome

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湖北地区头癣病原菌的检验报告

中华皮肤科杂志 1959年第2期07卷 134-135页

作者： ye yulin ZHANG Yizhen ZHANG Liexing 湖北省卫生防疫站湖北省卫生防疫站湖北省卫生防疫站

本文报导在湖北地区作头癣检查的结果,共检查发癣140例,阳性检出率52.8%,其中以铁锈色小茅孢癣菌为主,荃色癣菌次之,其他的表皮霉菌甚少.黄癣7例,检出阳性2例,为许蔺氏癣菌及其变种.

关键词：头癣癣

Establishment of a humanized mouse model using steady-state peripheral blood-derived hematopoietic stem and progenitor cells facilitates screening of cancer-targeted T-cell repertoires

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Cancer Innovation 2024年第3期3卷 1-21页

作者： yulin Xu Wei Shan Qian Luo Meng Zhang Dawei Huo Yijin Chen Honghu Li Yishan ye Xiaohong Yu Yi Luo He Huang Bone Marrow Transplantation Center The First Affiliated HospitalZhejiang University School of MedicineHangzhouChina Liangzhu Laboratory Zhejiang UniversityHangzhouChina Institute of Hematology Zhejiang UniversityHangzhouChina Zhejiang Province Engineering Research Center for Stem Cell and Immunity Therapy HangzhouChina School of Medicine Zhejiang UniversityHangzhouChina

Background:Cancer-targeted T-cell receptor T(TCR-T)cells hold promise in treating cancers such as hematological malignancies and breast ***,approaches to obtain cancer-reactive TCR-T cells have been ***:Here,we developed a novel strategy to screen for cancer-targeted TCR-T cells using a special humanized mouse model with person-specific immune *** steady-state circulating hematopoietic stem and progenitor cells were expanded via three-dimensional culture of steady-state peripheral blood mononuclear cells,and then the expanded cells were applied to establish humanized *** human immune system was evaluated according to the kinetics of dendritic cells,monocytes,T-cell subsets,and *** fully stimulate the immune response and to obtain B-cell precursor NAML-6-and triple-negative breast cancer MDA-MB-231-targeted TCR-T cells,we used the inactivated cells above to treat humanized mice twice a day every 7 ***,human T cells were processed for TCRβ-chain(TRB)sequencing *** the repertoires had been constructed,features such as the fraction,diversity,and immune signature were ***:The results demonstrated an increase in diversity and clonality of T cells after *** preferential usage and features of TRBV,TRBJ,and the V–J combination were also *** stress also induced highly clonal Science and Technology,Grant/Award Number:2021C03010;Zhejiang Provincial Natural Science Foundation of China,Grant/Award Numbers:LTGY24H080003,LY21H080004 *** burden and survival analysis demonstrated that stress induction could significantly inhibit the growth of subsequently transfused live tumor cells and prolong the survival of the humanized ***:We constructed a personalized humanized mouse model to screen cancer-targeted TCR-T *** platform provides an effective source of cancer-targeted TCR-T cells and allows for the design of patient-specific engineered T cells.

关键词： cancer-targeted T-cell receptor T(TCR-T)cells circulating hematopoietic stem and progenitor cells(HSPCs) humanized mouse model steady-state peripheral blood T-cell receptorβ-chain(TRB) three-dimensional culture

Periodontitis exacerbates pulmonary hypertension by promoting IFNγ^(+)T cell infiltration in mice

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International Journal of Oral Science 2024年第2期16卷 359-369页

作者： Xiaoqian Meng Linjuan Du Shuo Xu Lujun Zhou Boyan Chen yulin Li Chumao Chen Huilin ye Jun Zhang Guocai Tian Xuebing Bai Ting Dong Wenzhen Lin Mengjun Sun Kecong Zhou Yan Liu Wuchang Zhang Shengzhong Duan Department of Endodontics Shanghai Ninth People’s HospitalCollege of StomatologyShanghai Jiao Tong University School of MedicineShanghaiChina Laboratory of Oral Microbiota and Systemic Diseases Shanghai Ninth People’s HospitalCollege of StomatologyShanghai Jiao Tong University School of MedicineNational Center for StomatologyNational Clinical Research Center for Oral DiseasesShanghai Key Laboratory of StomatologyShanghaiChina Hongqiao International Institute of Medicine Shanghai Tongren Hospital/Faculty of Basic MedicineKey Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of EducationShanghai Jiao Tong University School of MedicineShanghaiChina Department of Orthodontics Shanghai Ninth People’s HospitalCollege of StomatologyShanghai Jiao Tong University School of MedicineShanghaiChina Department of Periodontology Shanghai Ninth People’s HospitalCollege of StomatologyShanghai Jiao Tong University School of MedicineShanghaiChina Stomatology Hospital School of StomatologyZhejiang University School of MedicineHangzhouChina

Uncovering the risk factors of pulmonary hypertension and its mechanisms is crucial for the prevention and treatment of the *** the current study,we showed that experimental periodontitis,which was established by ligation of molars followed by orally smearing subgingival plaques from patients with periodontitis,exacerbated hypoxia-induced pulmonary hypertension in ***,periodontitis dysregulated the pulmonary microbiota by promoting ectopic colonization and enrichment of oral bacteria in the lungs,contributing to pulmonary infiltration of interferon gamma positive(IFNγ^(+))T cells and aggravating the progression of pulmonary *** addition,we identified Prevotella zoogleoformans as the critical periodontitis-associated bacterium driving the exacerbation of pulmonary hypertension by periodontitis,and the exacerbation was potently ameliorated by both cervical lymph node excision and IFNγneutralizing *** study suggests a proof of concept that the combined prevention and treatment of periodontitis and pulmonary hypertension are necessary.

关键词： hypertension prevention interferon