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Frontiers of Materials Science 2022年第3期16卷 219-229页

作者： Xiaoyu MA Guifeng CHEN Xiaoming ZHANG Taoyuan JIA Weiqi ZHAO Zhaojun MO heyan liu Xuefang DAI Guodong liu School of Materials Science and Engineering Hebei University of TechnologyTianjin 300130China School of Materials Science and Engineering Tianjin University of TechnologyTianjin 300384China

Heusler alloys are a kind of intermetallic compounds with highly-ordered arrangement of *** attractive functional materials have been developed in Heusler *** to the application requirements of materials in new-generation electronic devices and spintronics devices,one-dimensional nanostructured Heusler alloys with special functions are *** this work,it is proposed to grow one-dimensional Heusler alloy nanostructures(1D-HA-NSs)by magnetron sputtering plus anodic aluminum oxide(AAO)*** with different shapes,amorphous-coated(AC)nanowires and nanotubes were successfully grown for several Heusler *** nanowires are the unique products of our *** alloy nanotubes are reported for the first *** one-dimensional nanostructures grow on the surface of the AAO substrate rather than in the *** top of the pore wall is the nanostructure growth point,the shape of which determines the morphology of the nanostructures.A general growth mechanism model of one-dimensional nanostructures on AAO template was established and further confirmed by experimental observation.

关键词： Heusleralloy one-dimensional nanostructure magnetron sputtering

Effects of carbon on Pr_(0.15)Tb_(0.30)Dy_(0.55)Fe_(1.85) compound

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Rare Metals 2006年第Z2期25卷 220-222页

作者： liu heyan LI Yangxian YU Xiao LI Songtao MENG Xiangxi XU Xuewen School of Material Science and Engineering Hebei University of Technology Tianjin 300130 China School of Material Science and Engineering Hebei University of Technology Tianjin 300130 China School of Material Science and Engineering Hebei University of Technology Tianjin 300130 China Department of Physics North China Electric Power University Baoding 071003 China School of Material Science and Engineering Hebei University of Technology Tianjin 300130 China School of Material Science and Engineering Hebei University of Technology Tianjin 300130 China

The structure, Curie temperature and magnetostriction of Pr0.15Tb0.30Dy0.55Fe1.85Cx (x=0-0.1) compounds were investigated by X-ray diffraction, a vibrating sample magnetometer and a standard strain technique. All the samples show entirely MgCu2-type Laves phase structure. The lattice parameter and Curie temperature increase with C content increasing. The magnetostriction at high magnetic field shows maximum value at x=0.05.

关键词： magnetostriction Pr0.15Tb0.3Dy0.55Fe1.85 Laves phase

High-order femtosecond vortices up to the 30th order generated from a powerful mode-locked Hermite-Gaussian laser

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Light(Science & Applications) 2023年第10期12卷 2084-2096页

作者： Hongyu liu Lisong Yan Hongshan Chen Xin liu heyan liu Soo Hoon Chew Alexander Gliserin Qing Wang Jinwei Zhang School of Optical and Electronic Information and Wuhan National Laboratory for Optoelectronics Huazhong University of Science and TechnologyWuhan 430074China Department of Optics and Mechatronics Engineering College of Nanoscience and NanotechnologyPusan National UniversityBusan 46241South Korea Max Planck Center for Attosecond Science Max Planck POSTECH/Korea Research InitiativePohang 37673South Korea School of Optics and Photonics Beijing Institute of TechnologyBeijing 100081China

Femtosecond vortex beams are of great scientific and practical interest because of their unique phase properties in both the longitudinal and transverse modes,enabling multi-dimensional quantum control of light *** now,generating femtosecond vortex beams for applications that simultaneously require ultrashort pulse duration,high power,high vortex order,and a low cost and compact laser source has been very challenging due to the limitations of available generation ***,we present a compact apparatus that generates powerful high-order femtosecond vortex pulses via astigmatic mode conversion from a mode-locked Hermite-Gaussian Yb:KGW laser oscillator in a hybrid scheme using both the translation-based off-axis pumping and the angle-based non-collinear pumping *** hybrid scheme enables the generation of femtosecond vortices with a continuously tunable vortex order from the 1st up to the 30th order,which is the highest order obtained from any femtosecond vortex laser source based on a mode-locked *** average powers and pulse durations of all resulting vortex pulses are several hundred milliwatts and<650 fs,*** particular,424-fs 11th-order vortex pulses have been achieved with an average power of 1.6 W,several times more powerful than state-of-the-art oscillator-based femtosecond vortex sources.

关键词： pumping laser mode

Quantum dot-enabled infrared hyperspectral imaging with single-pixel detection

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Light(Science & Applications) 2024年第6期13卷 1112-1121页

作者： heyan Meng Yuan Gao Xuhong Wang Xianye Li Lili Wang Xian Zhao Baoqing Sun School of Information Sciences and Engineering Shandong UniversityQingdaoChina Center for Optics Research and Engineering(CORE) Key Laboratory of Laser&Infrared System(Shandong University)Ministry of EducationShandong UniversityQingdaoChina School of Mechanical Electrical and Information EngineeringShandong UniversityWeihaiChina

Near-infrared(NIR)hyperspectral imaging is a powerful technique that enables the capture of three-dimensional(3D)spectra-spatial information within the NIR spectral range,offering a wide array of ***,the high cost associated with InGaAs focal plane array(FPA)has impeded the widespread adoption of NIR hyperspectral *** this challenge,in this study,we adopt an alternative approach—single-pixel detection for NIR hyperspectral *** investigation reveals that single-pixel detection outperforms conventional FPA,delivering a superior signal-to-noise ratio(SNR)for both spectral and imaging *** implement this strategy,we leverage self-assembled colloidal quantum dots(CQDs)and a digital micromirror device(DMD)for NIR spectral and spatial information multiplexing,complemented by single-pixel detection for simultaneous spectral and image *** experimental results demonstrate successful NIR hyperspectral imaging with a detection window about 600 nm and an average spectral resolution of 8.6 nm with a pixel resolution of 128×*** resulting spectral and spatial data align well with reference instruments,which validates the effectiveness of our *** circumventing the need for expensive and bulky FPA and wavelength selection components,our solution shows promise in advancing affordable and accessible NIR hyperspectral imaging technologies,thereby expanding the range of potential applications.

关键词： spectral Quantum mirror

Influence of stresses on martensitic transformation in ferromagnetic shape memory Ni_(50)Mn_(19)Fe_6Ga_(25) ribbons

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Science China(Technological Sciences) 2004年第6期47卷 710-715页

作者： MENG Fanbin LI Yangxian liu heyan QU Jingping liu Zhuhong CHEN Jinglian WU Guangheng School of Mechanical Science and Engineering Hebei University of TechnologyTianjin 300130China State Key Laboratory for Magnetism Institute of PhysicsChinese Academy of SciencesBeijing 100080China

The influence of stresses on martensitic transformation in Ni50Mn19Fe6Ga25 melt-spun ribbons was studied. X-ray diffraction examination shows that the ribbon has a pure cubic L21 phase at room temperature and that the ribbom surface exhibits [100] preferentially oriented texture, while the [110] axis is about 45°tilted from the normal of the ribbon. By calculating the d spacing at different angles with the length direction of the ribbon, the tension was observed. It was found that the direction of the stress was along [010] direction of the oriented textured grains. During cooling, there is no obvious structural transition observed in as-spun ribbons. However, when the ribbons were annealed at 900 K for 24 h, the tension along [010] direction disappeared and the structural transition from cubic to tetragonal occurred obviously during cooling. It indicates that it is the tension along [010] direction to suppress the martensitic transformation in the as-spun ribbons.

关键词：应力 martensitic 转变铁磁性的形状记忆合金

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我国智慧图书馆研究文献计量分析

办公自动化 2023年第11期28卷 54-57页

作者：刘合艳国家图书馆北京100081

智慧图书馆是继数字图书馆之后图书馆发展的高级形态,文章以CNKI中国知网学术期刊库为文献源,对我国智慧图书馆研究的相关文献进行文献计量分析。从年度发文量、来源期刊、基金资助情况、发文机构和作者几方面进行统计分析,从文献角度... 详细信息

智慧图书馆是继数字图书馆之后图书馆发展的高级形态,文章以CNKI中国知网学术期刊库为文献源,对我国智慧图书馆研究的相关文献进行文献计量分析。从年度发文量、来源期刊、基金资助情况、发文机构和作者几方面进行统计分析,从文献角度揭示智慧图书馆研究的现状。

关键词：智慧图书馆文献计量 Excel

铸牢中华民族共同体意识教育的理论与实践探索

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吉林省教育学院学报 2022年第2期38卷 174-177页

作者：刘河燕长江师范学院

铸牢中华民族共同体意识是新时代马克思主义中国化的新成果,是习近平总书记对新时代民族工作的科学论断。文章缕析了铸牢中华民族共同体意识提出的时代背景,同时分析了学界相关学者对其概念、内涵的阐释。在此基础上,提出了铸牢中华民... 详细信息

铸牢中华民族共同体意识是新时代马克思主义中国化的新成果,是习近平总书记对新时代民族工作的科学论断。文章缕析了铸牢中华民族共同体意识提出的时代背景,同时分析了学界相关学者对其概念、内涵的阐释。在此基础上,提出了铸牢中华民族共同体意识教育的具体实践方式的建议,主要采取宣传教育、社区教育、干部教育、学校教育、网络教育等形式。

关键词：铸牢中华民族共同体

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论晚明时事政治小说的纪实性及其形成原因

中国社会科学院研究生院学报 2015年第1期 105-109页

作者：刘鹤岩渤海大学文学院中文系

进入晚明以后,明代通俗小说的创作逐渐出现了两种倾向,一是小说越来越靠近现实,二是小说中有关时政题材的作品越来越多。晚明时事政治小说的兴盛是中国小说史上一个令人瞩目的现象,值得我们注意的是,晚明时事政治小说有一个非常显著的特... 详细信息

进入晚明以后,明代通俗小说的创作逐渐出现了两种倾向,一是小说越来越靠近现实,二是小说中有关时政题材的作品越来越多。晚明时事政治小说的兴盛是中国小说史上一个令人瞩目的现象,值得我们注意的是,晚明时事政治小说有一个非常显著的特点,就是注重纪实。晚明时事政治小说纪实性形成的内在原因主要有:中国小说的史传传统;明代私人修史的风气;晚明时事政治小说均为当代题材;邸报、奏疏诏议的大量使用。

关键词：晚明时事政治小说小说纪实性

基于师范类专业认证的教师教育课程内容改革研究

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现代大学教育 2019年第4期35卷 24-29,112页

作者：刘河燕长江师范学院教师教育学院

师范类专业认证的目的在于建立健全教师教育质量保障体系,提高教师综合素质,为国家培养卓越教师。师范类专业认证的实施必将加快教师教育课程改革的进程,为培养卓越师范生奠定基础。对照师范类专业认证的要求,中国教师教育课程还存在着... 详细信息

师范类专业认证的目的在于建立健全教师教育质量保障体系,提高教师综合素质,为国家培养卓越教师。师范类专业认证的实施必将加快教师教育课程改革的进程,为培养卓越师范生奠定基础。对照师范类专业认证的要求,中国教师教育课程还存在着课程结构不合理、课程内容陈旧、实践类课程较为薄弱等问题。应根据师范类专业认证的要求与标准,借鉴发达国家教师教育的经验,对教师教育课程内容进行改革:构建以学生为中心的教师教育课程体系、优化重组教师教育课程内容、加强教师教育实践课程建设。

关键词：专业认证基本标准合格标准卓越标准教师教育课程改革课程模块模块课程

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习近平总书记关于教育扶贫的重要论述研究

中国教育科学（中英文） 2022年第1期5卷 99-109,22页

作者：刘河燕蔡其勇长江师范学院重庆市教育科学研究院

习近平总书记关于教育扶贫的重要论述是马克思主义教育反贫困理论中国化的发展和创新。这一重要思想是在马克思、恩格斯、列宁以及中国党和国家领导人关于教育反贫困理论的基础上,在中国扶贫开发实践活动的不断开展和深入以及教育现代... 详细信息

习近平总书记关于教育扶贫的重要论述是马克思主义教育反贫困理论中国化的发展和创新。这一重要思想是在马克思、恩格斯、列宁以及中国党和国家领导人关于教育反贫困理论的基础上,在中国扶贫开发实践活动的不断开展和深入以及教育现代化建设的实践过程中形成和发展起来的,具有非凡的理论价值和现实意义。习近平总书记在深入研究分析的基础上确定了教育扶贫在中国扶贫开发事业中的根本战略地位;明确了教育扶贫的重要价值是从根本上阻断贫困代际传递;强调扶志、扶智、防返贫是教育扶贫的着力点;指出教育扶贫的关键是精准扶贫;阐明要把大力发展职业教育作为教育扶贫的重要抓手的重要思想。

关键词：重要论述反贫困教育扶贫精准扶贫