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journal of Iron and Steel Research International 2018年第7期25卷 700-705页

作者： Si-wei Wu Xiao-guang Zhou jia-kuang Ren Guang-ming cao Zhen-yu Liu Nai-an shi State Key Laboratory of Rolling and Automation Northeastern University Shenyang 110819 Liaoning China Continuous Rolling Plant of No. 3 Steelmaking of Angang Co. Ltd. Anshan 114021 Liaoning China

A successful mechanical property data-driven prediction model is the core of the optimal design of hot rolling process for hot-rolled strips. However, the original industrial data, usually unbalanced, are inevitably mixed with fluctuant and abnormal values. Models established on the basis of the data without data processing can cause misleading results, which cannot be used for the optimal design of hot rolling process. Thus, a method of industrial data processing of C-Mn steel was proposed based on the data analysis. The bayesian neural network was employed to establish the reliable mechanical property prediction models for the optimal design of hot rolling process. by using the multi-objective optimization algorithm and considering the individual requirements of costumers and the constraints of the equipment, the optimal design of hot rolling process was successfully applied to the rolling process design for q345b steel with 0.017% Nb and 0.046% Ti content removed. The optimal process design results were in good agreement with the industrial trials results, which verify the effectiveness of the optimal design of hot rolling process.

关键词： Industrial data Data processing - Mechanical property Optimal design Hot rolling process C-Mn steel

Anisotropy of the Wear behavior for Carbon Nanotube-Reinforced 6061Al Composites

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Acta Metallurgica Sinica(English Letters) 2023年第5期36卷 814-826页

作者： X.N.Li j.F.Zhang W.H.Xue K.Ma P.Y.Li Z.Y.Liu b.L.Xiao D.R.Ni q.Z.Wang D.Wang Z.Y.Ma School of Materials Science and Engineering University of Science and Technology of ChinaShenyang110016China shi-Changxu Innovation Center for Advanced Materials Institute of Metal ResearchChinese Academy of SciencesShenyang110016China

Carbon nanotube(CNT)-reinforced 6061Al(CNT/6061Al)composites with directionally aligned CNT were fabricated,and their wear behavior was *** results indicate that the wear properties of CNT/6061Al composites exhibited a significant anisotropy.A certain CNT concentrations(1 wt%and 2 wt%)could effectively improve the wear resistance of CNT/6061Al composites along the CNT circumferential and CNT radial directions for the load transfer,grain refinement and self-lubrication effect of *** brass{011}and{112}textures inhibited the load transfer effect of CNT along the CNT radial direction,resulting in a better wear resistance along CNT circumferential direction than CNT radial *** the CNT axial direction,the weak deformability of composites caused by the intensifyingfiber texture was the main reasons for the poor wear resistance of CNT/6061Al composites with increasing CNT concentration.

关键词： Carbon nanotube Metal matrix composite Wear Anisotropy

Predicting surface deformation during mechanical attrition of metallic alloys

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npj Computational Materials 2019年第1期5卷 843-857页

作者： Shan Cecilia cao Xiaochun Zhang jian Lu Yongli Wang San-qiang shi Robert O.Ritchie Department of Materials Science&Engineering University of CaliforniaBerkeleyCA 94720USA Shanghai Institute of Applied Physics Chinese Academy of SciencesShanghai 201800China Department of Mechanical Engineering City University of Hong KongHong KongChina Department of Mechanical Engineering The Hong Kong Polytechnic UniversityHung HomHong Kong Materials Sciences Division Lawrence Berkeley National LaboratoryBerkeleyCA 94720USA

Extensive efforts have been devoted in both the engineering and scientific domains to seek new designs and processing techniques capable of making stronger and tougher *** such method for enhancing such damage-tolerance in metallic alloys is a surface nano-crystallization technology that involves the use of hundreds of small hard balls which are vibrated using high-power ultrasound so that they impact onto the surface of a material at high speed(termed Surface Mechanical Attrition Treatment or SMAT).However,few studies have been devoted to the precise underlying mechanical mechanisms associated with this technology and the effect of processing *** SMAT is dynamic plastic deformation process,here we use random impact deformation as a means to investigate the relationship between impact deformation and the parameters involved in the processing,specifically ball size,impact velocity,ball density and kinetic *** analytical and numerical solutions,we examine the size of the indents and the depths of the associated plastic zones induced by random impacts,with results verified by experiment in austenitic stainless *** addition,global random impact and local impact frequency models are developed to analyze the statistical characteristics of random impact coverage,together with a description of the effect of random multiple impacts,which are more reflective of *** believe that these models will serve as a necessary foundation for further,and more energy-efficient,development of such surface nano-crystalline processing technologies for the strengthening of metallic materials.

关键词： deformation alloys metallic

A Review on Creating Male Sterility in Vegetable Crops by Genetic Engineering

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journal of Agricultural Science and Technology(b) 2011年第8期1卷 1097-1102页

作者： C. q. Yang Y. G. Oin j. j. Lei L. Zhai b. H. cao G. j, Chen College of Agriculture Sichuan Agricultural University Chengdu 611130 Sichuan China College of Horticulture Sichuan Agricultural University Ya ＇an 625014 Sichuan China College of Horticulture South China Agricultural University Guangzhou 510642 Guangdong China

With the deep researches on male sterility genetic engineering of plants, several strategies creating male sterile materials have been developed, such as causing pollen abortion by cytotoxic genes, antisense RNA or RNAi silencing the expression of genes related to pollen development, early degradation of tapetum callose leading to male sterility. Male sterile transgenic plants can be obtained through genetic transformation with related genes destroying or interfering with pollen or anther development. Male sterile cauliflower, tomato, cabbage, etc. have been developed in this way, and some begin to be used to produce hybrid seed. Appling some techniques can also maintain and restore the male sterility. These related researches will effectively promote the heterosis utilization and the development of crop breeding. This paper mainly presents their principles and applications in vegetable crops.

关键词： Vegetable genetic engineering male sterility breeding review.

XANES and XPS Study on Microstructure of Mn-Doped ZnO Films

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Materials Sciences and Applications 2013年第5期4卷 307-311页

作者： b. Zhang M. Li j. Z. Wang L. q. shi H. S. Cheng Applied Ion beam Physics Laboratory (Key Laboratory of the Ministry of Education) Institute of Modern Physics Fudan University Shanghai China Department of Nuclear Science and Technology Fudan University Shanghai China

Microstructure of ZnO:Mn films with various Mn concentration was investigated with XANES and XPS. The experimental results revealed a substitution of Mn in ZnO and also excluded the existence of Mn oxides or metallic manganese clusters. The substitutional Mn presented a divalent state and all the ZnO:Mn films were n-type. Room temperature ferromagnetism monotonously decreases with the decrease of the electron carrier concentration. The observed ferrmagnetism should come from the carrier-mediated exchange.

关键词： ZnO-based DMS Mn Substitution XANES XPS

三阴性侵袭性乳腺癌病理及免疫组化特征预测:超声定量与定性特征分析的性能比较

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国际医学放射学杂志 2022年第3期 364-365页

作者： j.W.Li Y.C.cao Z.j.Zhao Z.T.shi X.q.Duan C.Chang 郭长旭

摘要目的三阴性乳腺癌(TNbC)的超声特征与病理及免疫组化特征有关。为了预测TNbC的生物学特性，将高通量超声定量特征分析与定性特征评估的性能进行比较。方法

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纳米光子结构软膜紫外光固化纳米压印(英文)

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纳米技术与精密工程 2006年第3期4卷 225-229页

作者： shi j WANG Z M bAO K PEROZ C bELOTTI M XU L P LUO C X SUN M H ZHANG b jI H OUYANG q CHEN Y 北京大学物理学院北京100871 法国巴黎高等师范学院巴黎75005 法国国家科研中心光子与纳米结构实验室马库锡91460

紫外光固化纳米压印是实现纳米结构批量复制的一种新技术．其特点是低成本和高分辨,而且可以达到极高的套刻精度．为了得到大面积图案的均匀复制,可用聚二甲基硅氧烷(PDMS)制备透光的压印软模板．其母版图案可由高分辨率电子束曝光和反... 详细信息

紫外光固化纳米压印是实现纳米结构批量复制的一种新技术．其特点是低成本和高分辨,而且可以达到极高的套刻精度．为了得到大面积图案的均匀复制,可用聚二甲基硅氧烷(PDMS)制备透光的压印软模板．其母版图案可由高分辨率电子束曝光和反应离子刻蚀的方法在硅片基底上获得,然后用浇注的方法将图案转移到PDMS上．本实验特别发展了紫外光固化纳米压印适用于软膜压印的双层膜图型转移技术．该双层膜由廉价的光胶和聚甲基丙烯酸甲脂(PMMA)构成．对光胶层的压印可用普通的光学曝光仪实现．然后再将图案用反应离子刻蚀的方法转移到PMMA层中．为了证明方案的可行性,在两种不同材料的半导体基片上压印了三角晶格的光子晶体和准晶结构的图案,并用剥离的方法将它们转移到金属薄膜上,最后成功地进行了硅片刻蚀实验．相信这一纳米制做方法对大面积纳米光子结构和光学集成芯片的制造是普遍适用的．

关键词：纳米压印纳米加工纳米光子学

Multiple Flux Rope Events on jan.26,2001Observed at High-Latitude Magnetopause:Cluster/RAPID Measurements（Ⅱ）

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Multiple Flux Rope Events on Jan.26,2001Observed at High-Lat...

Rapid loss of plasma sheet energetic electrons associated with the bursty bulk flows during the late expansion and recovery phases of a substorm

中国地球空间双星探测计划科学研讨会

作者： Z.Y.Pu Z.q.Gang Z.Y.Huang T.Fritz C.j.Xiao S.Y.Fu L.Xie q.q.shi.j.b.cao Z.X.Liu P.Daly A.balogh K.H.Glassmeier H.Reme j.Dandouras G.Gustafsson

＜正＞ On january 26,2001ClusterⅡ4 satellites remained nearthe dusk-side high-latiude magnetopause for more than *** position of spacecraft in the GSE coordinatesystem was around x～4RE,y～7RE and z～*** to the recon...

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Rapid loss of plasma sheet energetic electrons associated wi...

基于潘多拉测序探索劳力性热射病小鼠脑组织非编码小RNA的变化

中国空间科学学会空间物理学专业委员会第十五届全国日地空间物理学研讨会

作者： L.Y.Li j.b.cao D.Zhang j.Y.Yang X.H.Wei Z.q.Wang School of Astronautics Beihang University State Key Laboratory for Space Weather CAS University of Chinese Academy of Sciences Nanjing University of Aeronautics and Astronautics

During the late expansion and recovery phases of a substorm from 07:35UT to 08:00UT on 24August 2005,Cluster satellites(C1 and C3)observed a series of earthward/dawnward bursty bulk flows(bbFs)and the repeated drops of energetic(-128keV)electron fluxes in the midtail plasma sheet(-18.1≤XGSM≤-16.9RE).by analyzing the bbF-associated changes in the charged particle’s loss cone,waves and energetic particles,we found that the loss of energetic electrons is mainly due to the pitch angle scatterings driven by the lower-band whistler waves in the bbF-impacted regions,whereas the influence of particle’s azimuth drifts(e.g.,the Ex×bz drifts independent of charges)are quite weak *** the loss cone of the charged particles is narrow(half loss cone angleαc.15o)in the midtail plasma sheet,the bbFs can enlarge the particle’s loss cone through the compression of local magnetic *** isotropic electron pitch angle evolutions and concurrent flux drops certify that the plasma sheet energetic electrons can be rapidly scattered into the loss cone(2αc)in the process of whistler wave *** the energetic electrons can experience the northern and southern conjugated losses during the wave-particle resonant interactions,their flux drops are also considerable when the plasma sheet was swept by the bbFs with the whistler waves many *** observations indicate that the bbFs with intense whistler waves mainly lead to the loss of the plasma sheet energetic electrons through the wave-driven pitch angle scatterings.

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中国急救医学 2024年第6期44卷 503-508页

作者：刘颖史秀云胡安刘春阳戴晶王泽薇程凤曹滨验游平飞金红旭北部战区总医院急诊医学科辽宁沈阳110016

目的基于潘多拉测序探索劳力性热射病(EHS)小鼠脑组织非编码小RNAs(sncRNAs)的变化。方法将12只雄性健康C57bL/6j小鼠随机分为对照组(n=6)和模型组(n=6)。对照组小鼠不作处理,模型组小鼠采用恒温恒湿箱内跑步建立EHS模型。EHS模型建立... 详细信息

目的基于潘多拉测序探索劳力性热射病(EHS)小鼠脑组织非编码小RNAs(sncRNAs)的变化。方法将12只雄性健康C57bL/6j小鼠随机分为对照组(n=6)和模型组(n=6)。对照组小鼠不作处理,模型组小鼠采用恒温恒湿箱内跑步建立EHS模型。EHS模型建立后基于脑湿干重检测和HE染色明确EHS小鼠脑损伤。采用潘多拉测序进行组间差异sncRNAs筛选。结果EHS小鼠脑组织通过PANDORA-Seq共检测2722个sncRNA;与正常对照组比较,以fold change>2、Pb-5p、mmu-miR-490-3p、mmu-miR-1843a-5p、piR-mmu-7796454和tsRNA-1020-MetCAT等;基于小RNA注释软件SPORTS1.1发掘和注释sncRNAs,提供了长度分布图和种类分布雷达图。sncRNAs种类的差异分析和序列的差异分析结果采用热图和火山图展示。结论sncRNAs失调可能参与EHS小鼠脑损伤的发病机制。

关键词：热射病脑损伤潘多拉测序非编码小RNA