检索结果-南通市图书馆

{411}<148> Texture in Thin-Gauge Grain-Oriented Silicon Steel

Acta Metallurgica Sinica(English Letters) 2016年第6期29卷 554-560页

作者： cheng-xu he Fu-Yao Yang Guang Ma Xin Chen Li Meng School of Materials Science and Engineering University of Science and Technology Beijing Department of Electrical Engineering New Materials and Microelectronics State Grid Smart Grid Research Institute Beijing R&D Department East China Branch of Central Iron and Steel Research Institute

The significant occupancy of {411}〈148〉texture exists in the thin-gauge grain-oriented silicon steel(TGCRGO is defined that thickness of the sheet is〈0.25 mm and the reduction in cold rolling is more than 90%) which has been considered to have obviously effects on the abnormal growth of Goss-oriented grains during the secondary recrystallization process. The microstructures of the TG-CRGO were investigated by X-ray diffraction and electron back-scattered diffraction in this study. It was found that {411}〈148〉〉texture mainly exists in the center layer of hot-rolled as well as normalized *** the increase in cold rolling reduction, {411}〈148〉 orientation gradually rotates to a-fiber texture(〈110〉//RD).Finally, few {411}〈148〉would retain at the boundaries of deformed a-fiber grains(〈110〉//RD) as the reduction in cold rolling reaches 90%. After annealing treatment, a small amount of c-fiber textures(〈111〉//ND) preferably nucleates and recrystallizes between the DBs(deformation bands) at first; then, the {411}〈148〉 recrystallization texture occurs and mainly nucleates at the grains boundaries of the deformed a-fiber grains, and also quite a few {411}〈148〉orientation grains nucleate in the inner of {112}〈110〉grains. But this phenomenon was not observed in the {100}〈011〉deformation *** respect to the occurrence of {411}〈148〉recrystallization texture, it is mainly induced by strong a-fiber as well as weak c-fiber textures formed during cold rolling other than originating from {411}〈148〉 regions in hot bands.

关键词： Thin-gauge grain-oriented silicon steel(TG-CRGO) {411}〈148〉texture x-Fiber texture Recrystallization Electron back-scattered diffraction(EBSD)

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Synthesis of 5-（Sulfamoylmethyl）indoles by Mild Negishi Coupling and Their Application in Almotriptan

引用

Chemical Research in Chinese Universities 2015年第4期31卷 539-542页

作者： LI Xiaolong QIU Rui WAN Weili cheng xu he Yi HAI Li WUYong Key Laboratory of Drug-Targeting and Drug-Delivery Systems of Ministry of Education Department of Medicinal Chemistry West China School of Pharmacy Sichuan University Chengdu 610041 P R. China

A new synthetic route of almotriptan was described. The application of Negishi coupling reaction simpli- fied the process and significantly improved the yield. The synthetic route was also expected to be general for t... 详细信息

关键词： Negishi coupling Almotriptan 5-(Sulfamoylmethyl)indole

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Simulation of recrystallization based on EBSD data using a modified Monte Carlo model that considers anisotropic effects in cold-rolled ultra-thin grain-oriented silicon steel

引用

International Journal of Minerals,Metallurgy and Materials 2020年第9期27卷 1251-1258页

作者： Li Meng Jun-ming Liu Ning Zhang Hao Wang Yu Han cheng-xu he Fu-yao Yang Xin Chen Metallurgical Technology Institute Central Iron&Steel Research InstituteBeijing 100081China School of Materials Science and Engineering University of Science and Technology BeijingBeijing 100083China State Key Laboratory of Advanced Power Transmission Technology Global Energy Interconnection Research Institute Co.LtdBeijing 102211China

A Monte Carlo Potts model was developed to simulate the recrystallization process of a cold-rolled ultra-thin grain-oriented silicon *** orientation and image quality data from electron backscatter diffraction measurements were used as input information for *** types of nucleation mechanisms,namely,random nucleation,high-stored-energy site nucleation(HSEN),and high-angle boundary nucleation(HABN),were considered for *** particular,the nucleation and growth behaviors of Goss-oriented({011})grains were *** showed that Goss grains had a nucleation advantage in HSEN and *** amount of Goss grains was the highest according to HABN,and it matched the experimental ***,Goss grains lacked a size advantage across all mechanisms during the recrystallization process.

关键词： ultra-thin grain-oriented silicon steel Monte Carlo simulation recrystallization nucleation grain growth Goss grain

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Monte Carlo study on abnormal growth of Goss grains in Fe-3%Si steel induced by second-phase particles

引用

International Journal of Minerals,Metallurgy and Materials 2016年第12期23卷 1397-1403页

作者： Dong-qun Xin cheng-xu he xue-hai Gong Hao Wang Li Meng Guang Ma Peng-fei Hou Wen-kang Zhang School of Materials Science and Engineering University of Science and Technology BeijingBeijing 100083China Global Energy Interconnection Research Institute Beijing 102211China Beijing R&D Center East China Branch of Central Iron and Steel Research InstituteBeijing 100081China Department of Electrical Engineering New Materials Global Energy Interconnection Research InstituteBeijing 102211China Technical Center Taiyuan Iron and Steel(Group)Co.Ltd.Taiyuan 030003China

The selective abnormal growth of Goss grains in magnetic sheets of Fe-3%Si （grade Hi-B） induced by second-phase particles （AlN and MnS） was studied using a modified Monte Carlo Ports model. The starting microstructures for the simulations were generated from electron backscatter diffraction （EBSD） orientation imaging maps of recrystallized samples. In the simulation, second-phase particles were assumed to be randomly distributed in the initial microstructures and the Zener drag effect of particles on Goss grain boundaries was assumed to be selectively invalid because of the unique properties of Goss grain boundaries. The simulation results suggest that normal growth of the matrix grains stagnates because of the pinning effect of particles on their boundaries. During the onset of abnormal grain growth, some Goss grains with concave boundaries in the initial microstructure grow fast abnormally and other Goss grains with convex boundaries shrink and eventually disappear.

关键词： silicon steel grain growth second phase particles Monte Carlo simulation

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Tailoring Light–Matter Interactions in Overcoupled Resonator for Biomolecule Recognition and Detection

引用

Nano-Micro Letters 2025年第1期17卷 262-280页

作者： Dongxiao Li Hong Zhou Zhihao Ren cheng xu chengkuo Lee Department of Electrical and Computer Engineering National University of SingaporeSingapore 117583Singapore Center for Intelligent Sensors and MEMS(CISM) National University of SingaporeSingapore 117608Singapore

Plasmonic nanoantennas provide unique opportunities for precise control of light–matter coupling in surface-enhanced infrared absorption(SEIRA)spectroscopy,but most of the resonant systems realized so far suffer from the obstacles of low sensitivity,narrow bandwidth,and asymmetric Fano resonance ***,we demonstrated an overcoupled resonator with a high plasmon-molecule coupling coefficient(μ)(OC-Hμresonator)by precisely controlling the radiation loss channel,the resonator-oscillator coupling channel,and the frequency detuning *** observed a strong dependence of the sensing performance on the coupling state,and demonstrated that OC-Hμresonator has excellent sensing properties of ultra-sensitive(7.25%nm^(−1)),ultra-broadband(3–10μm),and immune asymmetric Fano *** characteristics represent a breakthrough in SEIRA technology and lay the foundation for specific recognition of biomolecules,trace detection,and protein secondary structure analysis using a single array(array size is 100×100μm^(2)).In addition,with the assistance of machine learning,mixture classification,concentration prediction and spectral reconstruction were achieved with the highest accuracy of 100%.Finally,we demonstrated the potential of OC-Hμresonator for SARS-CoV-2 *** findings will promote the wider application of SEIRA technology,while providing new ideas for other enhanced spectroscopy technologies,quantum photonics and studying light–matter interactions.

关键词： Plasmonic nanoantennas Light-matter interaction Surface-enhanced infrared absorption Overcoupled Biosensing

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Transient chemical-mediated epigenetic modulation confers unrestricted lineage potential on human primed pluripotent stem cells

引用

Science China Life Sciences 2025年

作者： Shi Chen Yuanyuan he Lejun Lv Bei Liu cheng Li Hongkui Deng Jun xu Department of Cell Biology School of Basic Medical Sciences Peking University Stem Cell Research Center Peking University Health Science Center Peking University Academy of Advanced Interdisciplinary Studies Peking University BeiCell Therapeutics School of Life Sciences Center for Bioinformatics Center for Statistical Science Peking University MOE Engineering Research Center of Regenerative Medicine School of Basic Medical Sciences State Key Laboratory of Natural and Biomimetic Drugs Peking University Health Science Center and the MOE Key Laboratory of Cell Proliferation and Differentiation College of Life Sciences Peking-Tsinghua Center for Life Sciences Peking University

Human primed pluripotent stem cells are capable of generating all the embryonic ***,their extraembryonic trophectoderm potentials are *** remains unclear how to expand their developmental potential to trophectoderm *** we show that transient treatment with a cocktail of small molecule epigenetic modulators imparts trophectoderm lineage potentials to human primed pluripotent stem cells while preserving their embryonic *** chemically treated cells can generate trophectoderm-like cells and downstream trophoblast stem cells,diverging into syncytiotrophoblast and extravillous trophoblast *** and CUT&Tag analyses reveal that these induced cells share transcriptional profiles with in vivo trophectoderm and cytotrophoblast,and exhibit reduced H3K27me3 modification at gene loci specific to trophoblast lineages compared with primed pluripotent *** exploration highlighted the critical roles of epigenetic modulators HDAC2,EZH1/2,and KDM5s in the activation of trophoblast lineage *** findings demonstrate that transient epigenetic resetting activates unrestricted lineage potential in human primed pluripotent stem cells,and offer new mechanistic insights into human trophoblast lineage specification and in vitro models for studying placental development and related disorders.

关键词：

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Investigating Müller glia reprogramming in mice: a retrospective of the last decade, and a look to the future

引用

Neural Regeneration Research 2025年第4期20卷 946-959页

作者： Zhiyuan Yin Jiahui Kang xuan cheng Hui Gao Shujia Huo Haiwei xu Key Lab of Visual Damage and Regeneration&Restoration of Chongqing Southwest Eye HospitalSouthwest HospitalThird Military Medical University(Army Medical University)ChongqingChina

Müller glia,as prominent glial cells within the retina,plays a significant role in maintaining retinal homeostasis in both healthy and diseased *** lower vertebrates like zebrafish,these cells assume responsibility for spontaneous retinal regeneration,wherein endogenous Müller glia undergo proliferation,transform into Müller glia-derived progenitor cells,and subsequently regenerate the entire retina with restored ***,Müller glia in the mouse and human retina exhibit limited neural reprogramming.Müller glia reprogramming is thus a promising strategy for treating neurodegenerative ocular disorders.Müller glia reprogramming in mice has been accomplished with remarkable success,through various *** in molecular,genetic,epigenetic,morphological,and physiological evaluations have made it easier to document and investigate the Müller glia programming process in ***,there remain issues that hinder improving reprogramming efficiency and ***,understanding the reprogramming mechanism is crucial toward exploring factors that will improve Müller glia reprogramming efficiency,and for developing novel Müller glia reprogramming *** review describes recent progress in relatively successful Müller glia reprogramming *** also provides a basis for developing new Müller glia reprogramming strategies in mice,including epigenetic remodeling,metabolic modulation,immune regulation,chemical small-molecules regulation,extracellular matrix remodeling,and cell-cell fusion,to achieve Müller glia reprogramming in mice.

关键词： cell fusion chemical small-molecules epigenetic extracellular matrix immune metabolic mice Müller glia neurodegenerative diseases reprogramming retina regeneration

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

《伤寒杂病论》药物配伍规律的考证研究

引用

中华中医药杂志 2007年第8期22卷 503-506页

作者：徐成贺南方医科大学中医药学院广州510515

文章对张仲景在《伤寒论》、《金匮要略》中的方剂用药从配伍规律角度进行了研究,总结出有8类:同类相须的配伍;一味合多药的配伍;药味化合的配伍;取性取用的配伍;寒热并用的配伍;补泻并用的配伍;异类相使的配伍;药随证变的配伍。并对各... 详细信息

文章对张仲景在《伤寒论》、《金匮要略》中的方剂用药从配伍规律角度进行了研究,总结出有8类:同类相须的配伍;一味合多药的配伍;药味化合的配伍;取性取用的配伍;寒热并用的配伍;补泻并用的配伍;异类相使的配伍;药随证变的配伍。并对各种配伍下的具体用法结合仲景方药进行了论述。

关键词：张仲景伤寒杂病论金匮要略药物方剂配伍规律

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Analysis of Double-T Filter Used for PWM Circuit to D/A Converter

Analysis of Double-T Filter Used for PWM Circuit to D/A Conv...

引用

第24届中国控制与决策会议

作者： WANG Yan-wei, cheng Fang, ZHOU Yu-cheng, xu Jia-he Institute of Wood Industry, Chinese Academy of Forestry Beijing 100091

In practice applications, high-precision analog output is often required for complex process control, so the PWM （Pulse Width Modulation） output should be converted to smooth direct current output. A simple, practical and high-precision conversion and analysis method is presented in this paper. After transforming the PWM waveform with Fourier Transform Method, the digital-analog converter signal, which is demodulated through PWM, can be modulated with the low-pass filter. Thus the conversion from PWM to DAC （Digital to Analog Converter） can be realized. For the typical double-T filter circuit, based on the concept of closed-loop dominant pole in classical control theory, the order of the transfer function expression is reduced. The mathematical analysis to direct current component of PWM signal obtained through Double-T filter circuit is verified by simulation. Finally, the conversion rapidity and accuracy of this method for DAC is discussed.

关键词： PWM signal Double-T filter Digital to Analog converter Simulation analysis

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Observation of topological charge transformations in acoustic vortex using passive periodic systems

引用

Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 140-147页

作者： Di-Chao Chen Xie Liu Changqing xu Da-Jian Wu Ying cheng Xiao-Jun Liu School of Physics and Technology Nanjing Normal University Key Laboratory of Modern Acoustics School of Physics Nanjing University

Vortex transmutation utilizes a periodic system, which not only enables the alteration of the topological charge(TC) of unstable input vortices but also facilitates their transformation into stable structures. This approach is crucial for investigating the characteristics of vortices in various wave systems. here, we achieve acoustic vortex TC transmutation by employing a welldesigned dual-structured plate external system(DPES). The interactions between the acoustic vortex and the finite-order discrete rotational symmetry lead to the transformation of its topological charge when complete rotational symmetry is broken to Nthorder discrete symmetry. Our results experimentally demonstrate the acoustic vortex TC transmutation based on passive artificial structures, enabling numerous applications in particle manipulation and information multiplexing as well as advancing our understanding and control over free-space acoustic vortices.

关键词： acoustic vortex topological charge transformation artificial structure

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：