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浏览/检索结果: 共20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 Numerical simulations for optimised flow of second-grade nanofluid due to rotating disk with nonlinear thermal radiation: Chebyshev spectral collocation method analysis 期刊论文  OAI收割 PRAMANA-JOURNAL OF PHYSICS, 2022, 卷号: 96, 期号: 2, 页码: 10 作者:  Alsallami, Shami A. M.;  Usman;  Khan, Sami Ullah;  Ghaffari, Abuzar;  Khan, M. Ijaz   |  收藏  |  浏览/下载：21/0  |  提交时间：2023/02/07 Radiative flow  viscoelastic nanofluid  Brownian motion and thermophoretic diffusion  Chebyshev spectral collocation method  65  40  gd  88  20  td  44   Achieving High-Strength and Toughness in a Mg-Gd-Y Alloy Using Multidirectional Impact Forging 期刊论文  OAI收割 MATERIALS, 2022, 卷号: 15, 期号: 4, 页码: 12 作者:  Lu, Songhe;  Wu, Di;  Yan, Ming;  Chen, Rongshi   |  收藏  |  浏览/下载：26/0  |  提交时间：2022/07/01 grain refinement  high strength and toughness  {10-12} twin  Mg-Gd-Y alloy  multidirectional impact forging   Spin-Hamiltonian parameters for the tetragonal Gd-M(3+)-F-i(-) centers in CaF2 and SrF2 crystals 期刊论文  OAI收割 Journal of Magnetic Resonance, 2013, 卷号: 227, 页码: 62-65 W. Q. Yang; Y. Zhang; Y. Lin; W. C. Zheng 收藏  |  浏览/下载：41/0  |  提交时间：2013/12/24 Electron paramagnetic resonance  Crystal and ligand-field theory  Defect  structure  Gd3+  Calcium fluoride  Strontium fluoride  electron-paramagnetic-resonance  superposition-model analysis  temperature-dependence  optical spectroscopy  magnetic-resonance  laser  applications  local-structure  epr-spectra  gd3+  fluorites   Preparation and luminescent properties of green SrAl2O4: Eu2+ and blue SrAl2O4: Eu2+, Gd3+ phosphors 期刊论文  OAI收割 Materials Letters, 2013, 卷号: 110, 页码: 91-93 W. L. Feng 收藏  |  浏览/下载：19/0  |  提交时间：2013/12/24 Luminescence  Optical materials and properties  Phosphors  SrAl2O4  Eu2+  Gd3+  dy3+   Structure and X-ray reference diffraction patterns of (Ba6-xSrx)R2Co4O15 (x=1, 2) (R = lanthanides) 期刊论文  OAI收割 POWDER DIFFRACTION, 2013, 卷号: 28, 期号: 3, 页码: 212 Wong-Ng, W; Liu, G; Yan, YG; Kaduk, JA 收藏  |  浏览/下载：26/0  |  提交时间：2014/01/17 X-ray reference diffraction patterns  (Ba6-xSrx)R2Co4O15 (x=1  crystal structure  2) (R = La  Nd  Sm  Eu  and Gd)   Spin-Hamiltonian parameters and local rotational order parameters for Gd3+ ion in the tetragonal phase of SrTiO3 crystal 期刊论文  OAI收割 PHYSICA B-CONDENSED MATTER, 2011, 卷号: 406, 期号: 18, 页码: 3450-3453 作者:  Yang, Wei-Qing;  Zheng, Wen-Chen;  Liu, Hong-Gang   |  收藏  |  浏览/下载：13/0  |  提交时间：2021/02/02 Electron paramagnetic resonance  Local phase behavior  Crystal and ligand field theory  Gd3+  SrTiO3   Energy transition between Yb3+-Tm3+-Gd3+ in Gd3+, Yb3+ and Tm3+ Co-doped fluoride nanocrystals (EI CONFERENCE) 会议论文  OAI收割 17th International Conference on Dynamical Processes in Excited States of Solids, DPC'10, June 20, 2010 - June 25, 2010, Argonne, IL, United states 作者:  Zhang J.;  Zhang J.;  Zhang J. 收藏  |  浏览/下载：24/0  |  提交时间：2013/03/25 YF3: 20%Gd3+  20%Yb3+  0.5%Tm3+ nanocrystal has been synthesized by a hydrothermal method. The upconversion (UC) emission and energy transfer progresses between Gd3+-Yb 3+-Tm3+ under a 980-nm continuous wave semiconductor laser diode excitation have been explored. The experimental results show that the violet and ultraviolet (UV) enhancement with Tm3+ upconversion emission occurs in the nanocrystal  and in the same time the UC emissions of Gd3+ from 6D9/2  6IJ  6P5/2  and 6P7/2 states to the ground state 8S7/2 are obtained  too. The dynamic analysis implies that  under 980-nm excitation  the nanocrystal dimension plays a key role in the efficient energy transfer processes between Gd3+-Yb 3+-Tm3tt based on the energy matching conditions. 2011 Published by Elsevier B.V.   Spin-Hamiltonian parameters and local rotational order parameters for Gd(3+) ion in the tetragonal phase of SrTiO(3) crystal 期刊论文  OAI收割 Physica B-Condensed Matter, 2011, 卷号: 406, 期号: 18, 页码: 3450-3453 W. Q. Yang; W. C. Zheng; H. G. Liu 收藏  |  浏览/下载：24/0  |  提交时间：2012/04/13 Electron paramagnetic resonance  Local phase behavior  Crystal and  ligand field theory  Gd(3+)  SrTiO(3)  superposition-model analysis  paramagnetic resonance  field parameters  transition  epr  rbcaf3  rbcdf3  centers   Investigations on the Zero-Field Splittings and the g Factor of Gd(x)Eu(1-x)Ba(2)Cu(3)O(7-delta) 期刊论文  OAI收割 Journal of Superconductivity and Novel Magnetism, 2010, 卷号: 23, 期号: 5, 页码: 837-838 S. Y. Wu; H. M. Zhang; X. F. Wang; Y. X. Hu 收藏  |  浏览/下载：25/0  |  提交时间：2012/04/13 Crystal fields and spin Hamiltonians  EPR  Superposition model  Gd(x)Eu(1-x)Ba(2)Cu(3)O(7-delta)  spin-hamiltonian parameters  gd3  superconductor  euba2cu3oy   Effect of Process Parameter on Properties of (Y,Gd)(2)O(3):Eu(3+) Nanopowders Prepared by Co-Precipitation Method 期刊论文  OAI收割 Chinese Journal of Inorganic Chemistry, 2009, 卷号: 25, 期号: 5, 页码: 880-885 Y. F. Guo; W. M. Ma; L. Wen; S. F. Shen; H. D. Wang; K. Yin 收藏  |  浏览/下载：38/0  |  提交时间：2012/04/13 co-precipitation method  process parameter  synthesis and  characterzation  optical spectrum characteristic  spray-pyrolysis  low-temperature  y2o3-eu  phosphors  ceramics  photoluminescence  gd2-xyxo3-eu3+  fabrication