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您的检索式：作者名="Jiangnan Du"
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| 1 | Shell effect and capture cross sections in the synthesis of superheavy nuclei显示文摘The shell effect is included in the improved isospin dependent quantum molecular dynamics model in which the shell correction energy of the system is calculated by using the deformed two-center shell model.A switch function is introduced to connect the shell correction energy of the projectile and the target with that of the compound nucleus during the dynamical fusion process.It is found that the calculated capture cross sections reproduce the experimental data quantitatively at the energy near the Coulomb barrier.The capture cross sections for reaction 8305 Br + 28028 Pb → 121878X are also calculated and discussed. | DU SaiSai1,2,BIAN BaoAn1,2,3,LIU Min1,2,4,FENG ZhaoQing5,6 & ZHANG FengShou1,2,6 1 Key Laboratory of Beam Technology and Material Modification of Ministry of Education,College of Nuclear Science and Technology,Beijing Normal University,Beijing 100875,China 2 Beijing Radiation Center,Beijing 100875,China 3 School of Science,Jiangnan University,Wuxi 214122,China 4 College of Physics and Technology,Guangxi Normal University,Guilin 541004,China 5 Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000,China 6 Center of Theoretical Nuclear Physics,National Laboratory of Heavy Ion Accelerator of Lanzhou,Lanzhou 730000,China | 2009 | Science China(Physics,Mechanics & Astronomy)2009，52，10： | 2 |
| 2 | Luminescence properties of Y2WO6:Yb^3+/Er^3+ with enhanced redemission via upconversion显示文摘The Er^(3+)/Yb^(3+) co-doped Y2 WO6 phosphors were prepared via high temperature solid method for the first time. The structure was investigated with X-ray diffraction(XRD). The crystal morphology was observed through scanning electron microscopy(SEM). Under the excitation of 980 nm diode laser,visible up-conversion(UC) emissions were observed in green and red regions. The luminescence study reveals strong ~4 S_(3/2) to ~4 I_(15/2) transition at 545 nm and strong ~4 F_(9/2) to ~4 I_(15/2) transition at 657 nm. The relative intensities ratios of red(510-580 nm) to green(640-690 nm) emissions(R_(R/G)) reduce when the samples co-doped with Yb^(3+) ions. The dependence of emission intensity on the pump power indicate that visible UC emissions are governed by two photons, meanwhile three photons process is also involved. For more details, the discussion is made in the energy level diagrams. | Xuedong Gao Denghui Xu Jiangnan Du Zaifa Yang Jiayue Sun | 2017 | Journal of Rare Earths2017，35，11： | 0 |
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