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理学: 作品数：1786592被引量：2161561H指数：176; 导出分析报告; 相关作者：刘三阳朱正和俞汝勤乐茂华张玉奎更多>>; 相关机构：中国科学院吉林大学浙江大学中国科学技术大学更多>>; 发文主题：数学性能研究英文高等数学数值模拟更多>>; 相关期刊：更多>>; 发文基金：国家自然科学基金国家重点基础研究发展计划国家教育部博士点基金国家高技术研究发展计划更多>>

气流方向Z型折叠离轴混合非稳腔研究被引量：1: 《中国激光》2022年第23期39-45,共7页李卿刘现魁任晓明邱雄飞李金雪郭建增; 国家高技术发展计划(51326010201)。; 提出并研究了一种气流方向Z型折叠离轴混合非稳腔,应用在小型化DF气流化学激光装置中(增益体积为30 mm×40 mm×125 mm),实现了平均功率550 W、光束质量β值1.8(稳定腔方向β值为1.5,非稳定腔方向β值为1.9)、光谱覆盖3680~4089 nm的中...; 关键词：激光器离轴混合非稳腔 DF气流化学激光光束质量中红外激光

High-accuracy calibration for multi-laser powder bed fusion via in situ detection and parameter identification: 《Advances in Manufacturing》2022年第4期556-570,共15页Qi Zhong Xiao-Yong Tian Xiao-Kang Huang Zhi-Qiang Tong Yi Cao Di-Chen Li; This study was supported by the National High Technology Research and Development Program of China(863 Program)(Grant No.2015AA042503);the K.C.Wong Education Foundation.; Multi-laser powder bed fusion(ML-PBF)adopts multiple laser-scanner systems to increase the build envelope and build speed,but its calibration is an iterative and time-consuming process.In particular,multiple large-sca...; 关键词：Powder bed fusion Multi-laser technology Galvo calibration Assembly defects System identification

三元共聚浅色透明聚酰亚胺薄膜的制备及性能表征被引量：1: 《塑料工业》2022年第10期36-40,46,共6页卢春燕刘帅王刚朱天容胡思前; 国家高技术研究发展计划(“863”项目)(2015AA033406);武汉市人才培养计划(20141822);光电化学材料与器件教育部重点实验室开放基金(江汉大学)(JDGD-201711)。; 采用两步法,以双环[2.2.1]庚烷二甲胺异构体混合物(NBDA)、2,6-二氨基甲苯(2,6-DAT)、4,4′-氧双邻苯二甲酸酐(ODPA)为原料,合成一系列不同比例二胺的浅色透明聚酰亚胺薄膜。通过红外光谱仪、紫外可见光谱仪、X射线衍射仪、差示扫描量...; 关键词：聚酰亚胺异构体混合物浅色透明薄膜

Hydrogen trapping and electrochemical corrosion behavior of V–N microalloyed X80 pipeline steels consisting of acicular ferrite and polygonal ferrite被引量：3: 《Journal of Iron and Steel Research International》2022年第10期1683-1693,共11页Ming-ming Wang Xiu-hua Gao Li-ying Song Cheng-lin Zhu Lin-xiu Du Raja Devesh Kumar Misra; This study is financially supported by the National High Technology Research and Development Program of China(863 Program)(Grant No.2015AA03A501).; Hydrogen trapping behavior of V–N microalloyed X80 pipeline steels was studied by means of hydrogen permeation and hydrogen induced cracking(HIC)tests.In addition,the electrochemical performance of the steels in 3.5 ...; 关键词：Pipeline steel V-N microalloying Hydrogen induced cracking susceptibility Hydrogen permeation Electrochemical corrosion

Pt/TiO_(2)-CN_(x)催化剂中纳米TiO_(2)(A)/(R)相含量的电催化“火山形”效应: 《电化学》2022年第5期39-48,共10页崔爱林白洋俞宏英孟惠民; 国家重点研究开发计划(编号2017YFA0403000);国家高技术研究开发计划(编号2007AA05Z103)资助。; 由于燃料电池催化剂的电催化活性与Pt颗粒尺寸、催化剂载体、辅助催化剂的关系仍不清楚。为此,本文采用FESEM、XRD、BET、TEM和CV等方法,以存在Pt纳米颗粒、CN_(x)纳米线、TiO_(2)辅助催化剂的多成分复杂结构Pt/TiO_(2)-CN_(x)体系为研...; 关键词：催化剂 TiO_(2) 锐钛矿金红石电化学活性面积

Discrete element-embedded finite element model for simulation of soft particle motion and deformation被引量：1: 《Particuology》2022年第9期88-100,共13页Xu Liu Nan Gui Xiyuan Cui Xingtuan Yang Jiyuan Tu Shengyao Jiang; the support of this research by the National Science and Technology Major Project(grant No.2011ZX06901-003);the National Natural Science Foundation of China(grant No.51576211);the National High Technology Research and Development Program of China(863)(grant No.2014AA052701);the funds of Nuclear Power Technology Innovation Centre(grant Nos.HDLCXZX-2020-HD-022 and HDLCXZX-2021-ZH-024).; The motion and deformation of soft particles are commonly encountered and important in many appli-cations.A discrete element-embedded finite element model(DEFEM)is proposed to solve soft particle motion and deformatio...; 关键词：Discrete element method Finite element method Soft particle COLLISION Particle packing Pebble bed

质谱分子成像技术与应用进展被引量：4: 《分析测试学报》2022年第9期1335-1344,共10页再帕尔·阿不力孜; 国家自然科学基金(21927808,21335007,81373370);“863”计划(生物和医药技术领域)项目(2014AA021100);科技部国家重大科学仪器设备开发专项(2011YQ17006702)。; 该文总结了二次离子质谱、基质辅助激光解吸电离质谱和常压敞开式离子化质谱三大类型质谱分子成像(MSI)技术的概况、技术与方法及其应用新进展。MSI技术作为免标记、高覆盖、高灵敏、检测范围广的可视化分析手段,不局限于生物组织或细...; 关键词：质谱分子成像技术二次离子质谱基质辅助激光解吸电离质谱常压敞开式离子化质谱空间分辨代谢组学

含异构脂环二胺的浅色透明聚酰亚胺薄膜的制备被引量：2: 《塑料科技》2022年第9期46-49,共4页卢春燕刘帅王刚朱天容胡思前; 国家高技术研究发展计划(“863”项目)(2015AA033406);武汉市人才培养计划(20141822);光电化学材料与器件教育部重点实验室开放基金(JDGD-201711)。; 采用两步法,将双酚A型二醚二酐(BPADA)、4,4’-氧双邻苯二甲酸酐(ODPA)、3,3’,4,4’-联苯四羧酸二酐(BPDA)和3,3’,4,4’-二苯甲酮四甲酸二酐(BTDA)分别与异构体混合物双环[2.2.1]庚烷二甲胺(NBDA)反应,得到四种浅色透明聚酰亚胺(PI)...; 关键词：聚酰亚胺异构体混合物透明性力学性能

Annealing and optical homogeneity of large ZnGeP_(2) single crystal被引量：1: 《Rare Metals》2022年第9期3214-3219,共6页Li-Qiang Cao Bei-Jun Zhao Shi-Fu Zhu Bao-Jun Chen Zhi-Yu He Deng-Hui Yang Hui Liu Hu Xie; financially supported by the National Natural Science Foundation Key Programs of China(No.50732005);the National High Technology Research and Development Program of China(No.2007AA03Z443)。; A high-quality ZnGeP_(2)(ZGP)single crystal with large size ofΦ30 mm×80 mm was grown by a modified vertical Bridgman method.ZGP wafers were annealed with ZGP polycrystalline powder for 300 h at 550,600 and 650℃,res...; 关键词：ZnGeP_(2)crystals ANNEALING Infrared transmittance Scanning infrared map Optical homogeneity

Effect of lens-to-sample distance on spatial uniformity and emission spectrum of flat-top laser-induced plasma: 《Plasma Science and Technology》2022年第8期40-45,共6页Hongbo FU Huadong WANG Mengyang ZHANG Bian WU Zhirong ZHANG; supported by the Young Scientists Fund of National Natural Science Foundation of China(No.12004388);the National High Technology Research and Development Program of China(No.2021YFB3202402);the Key Research and Development Plan of Anhui Province(No.202104i07020009);the Collaborative Innovation Program of Hefei Science Center,CAS(No.2021HSCCIP005)。; The optimal spectral excitation and acquisition scheme is explored by studying the effect of the lensto-sample distance(LTSD)on the spatial homogeneity and emission spectra of flat-top laser converging spot induced pl...; 关键词：laser-induced plasma lens-to-sample distance plasma image RSD laser-induced breakdown spectroscopy

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