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浏览/检索结果: 共24条，第1-10条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序提交时间升序提交时间降序作者升序作者降序发表日期升序发表日期降序 Investigations on the photoluminescence of the iron and cobalt doped fluoride-containing phosphate-based glasses and its defects-related nature 期刊论文  OAI收割 journal of alloys and compounds, 2016, 卷号: 685, 页码: 153-158 作者:  He, Quanlong;  Wang, Pengfei;  Lu, Min;  Peng, Bo 收藏  |  浏览/下载：38/0  |  提交时间：2016/10/14 Defects  Fluoride-containing phosphate-based glasses  Photoluminescence spectra  Red-shift  Absorption spectra   Spectra, stability and labeling of 1-(5-carboxypentyl)-4-(2-(N-ethyl-carbazole-3-yl) vinyl) pyridinium bromide with a large Stokes shift 期刊论文  OAI收割 LUMINESCENCE, 2016, 卷号: 31, 期号: 2, 页码: 380-387 作者:  Gu, Yingchun;  Lin, Dayong;  Li, Ran;  Tang, Yalin;  Fei, Xuening 收藏  |  浏览/下载：17/0  |  提交时间：2017/01/23 carbazole  spectra  large Stokes shift  stability  labeling   Observation of H-1-C-13 and H-1-H-1 proximities in a paramagnetic solid by NMR at high magnetic field under ultra-fast MAS 期刊论文  OAI收割 JOURNAL OF MAGNETIC RESONANCE, 2015, 卷号: 251, 页码: 36-42 作者:  Li, Shenhui;  Trebosc, Julien;  Lafon, Olivier;  Zhou, Lei;  Shen, Ming 收藏  |  浏览/下载：34/0  |  提交时间：2015/06/23 Solid state NMR  Paramagnetic solid  2D correlation spectra  Chemical shift assignment   Selective hydrogenation of o-chloronitrobenzene over anatase-ferric oxides supported Ir nanocomposite catalyst 期刊论文  OAI收割 journal of colloid and interface science, 2014, 卷号: 432, 期号: 72, 页码: 200-206 Lin, Weiwei; Zhao, Jia; Cheng, Haiyang; Li,Xiaoru; Li,Xiaonian; Zhao,Fengyu 收藏  |  浏览/下载：41/0  |  提交时间：2015/10/20 GAS SHIFT REACTION  CO OXIDATION  CROTONALDEHYDE HYDROGENATION  HYDROXYLAMINE ACCUMULATION  CITRAL HYDROGENATION  CARBON NANOTUBES  XPS SPECTRA  FE  DECOMPOSITION  PERFORMANCE   A new isoflavane glycoside from Cicer arietinum seeds 期刊论文  OAI收割 CHEMISTRY OF NATURAL COMPOUNDS, 2013, 卷号: 49, 期号: 2, 页码: 242-245 作者:  Gao Yan-Hua;  Yili Abulimiti;  Ma Qing-Ling;  Ghulam Saydahmat;  Luo Yu-Qin 收藏  |  浏览/下载：40/0  |  提交时间：2013/11/07 Cicer arietinum L.  chickpea  cicerarietinuoside A  NMR spectra  chemical shift   Theoretical investigations of optical spectra and electron paramagnetic resonance spectra of LiCl:Ni2+ crystals 期刊论文  OAI收割 Spectrochimica Acta Part a-Molecular and Biomolecular Spectroscopy, 2012, 卷号: 99, 页码: 342-346 W. Fang; H. Y. Tang; W. D. Cheng; W. C. Zheng 收藏  |  浏览/下载：28/0  |  提交时间：2013/02/05 Optical spectra  Electron paramagnetic resonance (EPR)  Charge transfer  mechanism  Local structure  Ni2+  spin resonance  field analysis  ni2+ ions  transition  licl  absorption  parameters  complexes  terms  shift   YPO4 nanocrystals: preparation and size-induced lattice symmetry enhancement 期刊论文  OAI收割 Journal of Rare Earths, 2008, 卷号: 26, 期号: 4, 页码: 495-500 Q. Liu; Y. G. Su; H. S. Yu and W. Han 收藏  |  浏览/下载：20/0  |  提交时间：2013/01/22 hydrothermal  lattice expansion  symmetric enhancement  blue shift  luminescence  rare earths  spectra  ce   Plasma effect on the k alpha group emission of he-like neon 期刊论文  iSwitch采集 Acta physica sinica, 2006, 卷号: 55, 期号: 9, 页码: 4501-4505 作者:  Zhang Li;  Li Xiang-Dong;  Jiang Xin-Ge 收藏  |  浏览/下载：26/0  |  提交时间：2019/05/10 Spectra shift  Exchange energy  Dense plasma  He-like ion   几个学习算法及其在星系光谱分类中的应用 学位论文  OAI收割 工学博士, 中国科学院自动化研究所: 中国科学院研究生院, 2006 作者:  李乡儒 收藏  |  浏览/下载：50/0  |  提交时间：2015/09/02 活动星系核  类星体  光谱自动分类  预处理  特征提取  对数波长  流量标准化  均值漂移  相关向量机  相融性度量  active galactic nuclei(AGN)  quasar(quasi-stellar object ,QSO)  spectra automated classification  preprocessing  feature extraction  log-wavelength  flux standization  mean shift  relevance vector machine (RVM)  coherence measure   Effect of interface on luminescence properties in ZnO/MgZnO heterostructures (EI CONFERENCE) 会议论文  OAI收割 Wei Z. P.; Lu Y. M.; Shen D. Z.; Wu C. X.; Zhang Z. Z.; Zhao D. X.; Zhang J. Y.; Fan X. W. 收藏  |  浏览/下载：28/0  |  提交时间：2013/03/25 A set of ZnO/MgZnO heterostructures with well widths  Lw  varying from 2 to 20 nm has been grown by plasma-assisted molecular-beam epitaxy (P-MBE). We present a room-temperature (RT) study of the well-width-dependent photoluminescence (PL) spectra and carrier lifetimes in ZnO/MgZnO heterostructures. Bi-exponential process is seen at RT time-decay curves of the luminescence from the well layers. The fast process is from the recombination of the free exciton  while the slow process is attributing to the recombination of the localized exciton in the interface of ZnO and MgZnO. It is also confirmed from the PL peak shift of time-resolved PL spectra. With decreasing the well thickness  the fast process gradually increases and dominantly contributes to the PL spectrum due to the interface improvement. 2006 Elsevier B.V. All rights reserved.