英国物理学会
期刊
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作者:Yong Shen , Nicholas Fang
来源:[J].New Journal of Physics(IF 4.063), 2015, Vol.17 (4)IOP
摘要:Recently, Lemoult et al (2011 Phys. Rev. Lett. 107 064301 ) used time reversal to focus sound above an array of soda cans into a spot much smaller than the acoustic wavelength in air. In this study, we show that equally sharp focusing can be achieved without time reversal, by arr...
作者:Yong Shen , J Q Dong ...
来源:[J].Plasma Physics and Controlled Fusion(IF 2.369), 2016, Vol.58 (4)IOP
摘要:The trapped electron modes (TEMs) are numerically investigated in toroidal magnetized hydrogen, deuterium and tritium plasmas, taking into account the effects of impurity ions such as carbon, oxygen, helium, tungsten and others with positive and negative density gradients with th...
作者:Yong Shen , J.Q. Dong ...
来源:[J].Nuclear Fusion(IF 2.734), 2018, Vol.58 (7)IOP
摘要:Isotope effects on instabilities driven by ion temperature gradient (ITG) and impurities in tokamak plasmas in the presence of tungsten ions are numerically studied. It is revealed that the tungsten ions significantly modify the isotope scaling of the maximum growth rates of...
作者:Yong Shen , J.Q. Dong ...
来源:[J].Nuclear Fusion(IF 2.734), 2019, Vol.59 (4)IOP
摘要:Two different directions of scale-to-scale energy transfer that corresponds to forward and inverse energy cascades, respectively, were clarified in toroidal plasma turbulence by means of experimental analysis. In the present work we first report the evidence that the turbulence d...
作者:... Yue Wu , Yong Shen , Qu Liu
来源:[J].Chinese Physics B(IF 1.148), 2016, Vol.25 (9)IOP
摘要:We theoretically and experimentally investigate the wave front distortion in critically phase-matched continuous-wave (CW) second harmonic generation (SHG). Due to the walk-off effect in the nonlinear crystal, the generated second harmonic is extremely elliptical and quite n...
作者:... Xiang Zhang , Yong Shen , Hong-Xin Zou
来源:[J].Chinese Physics B(IF 1.148), 2018, Vol.27 (8)IOP
摘要:Based on relativistic wave functions from multiconfiguration Dirac–Hartree–Fock and configuration interaction calculations, E2 and M1 transition probabilities of 2p3 4 S 3/2–2p3 2 D 3/2,5/2 are investigat...
作者:Yong Shen , J.Q. Dong ...
来源:[J].Nuclear Fusion(IF 2.734), 2018, Vol.58 (1)IOP
摘要:New electromagnetic micro-instabilities are found in magnetically confined toroidal plasmas with two ion species (main and impurity ions) from gyrokinetic simulations by means of linear analysis with the equilibrium model. The instabilities are induced by impurity ion densit...
作者:... JiaYuan Peng , HongWei Kang , Yong Shen
来源:[J].Journal of Physics: Conference Series, 2019, Vol.1168 (6)IOP
摘要:As the largest Operating System in the smart phone market, Android is gaining more adherents in recent years, which makes it increasingly important to detect Android malware correctly and efficiently. In this paper, we proposed a way to detect it with sequential convolutional neu...
作者:Yong Shen , Geoff T Campbell ...
来源:[J].Journal of Optics, 2013, Vol.15 (4)IOP
摘要:We report on the generation of optical vortex beams using spatial phase modulation with spiral phase mirrors. The spiral phase mirrors are manufactured by direct machining with an ultra-precision single point diamond turning lathe. The imperfection of the machined phase mirr...

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