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浏览/检索结果: 共4条，第1-4条 帮助 限定条件 发表日期：2008     已选(0)清除 条数/页：5101520253035404550556065707580859095100   排序方式：请选择作者升序作者降序题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序 Solitary kinetic Alfven waves in dusty plasmas 期刊论文 PHYSICS OF PLASMAS, 2008, 卷号: 15, 期号: 8, 页码: 083703 作者:  Li, Yang-fang;  Wu, D. J.;  Morfill, G. E. 收藏  |  浏览/下载：22/0  |  提交时间：2011/12/29 Solitary kinetic Alfven waves in dusty plasmas are studied by Considering the dust charge variation. The effect of the dust charge-to-mass ratio on the soliton solution is discussed. The Sagdeev potential is derived analytically with constant dust charge and then calculated numerically by taking the dust charge variation into account. We show that the dust charge-to-mass ratio plays an important role in the soliton properties. The soliton solutions are comprised of two branches. One branch is sub-Alfvenic and the soliton velocity is obviously smaller than the Alfven speed. The other branch is super-Alfvenic and the soliton velocity is very close to or greater than the Alfven speed. Both compressive and rarefactive solitons can exist. For the sub-Alfvenic branch  the rarefactive soliton is bell-shaped and it is much narrower than the compressive one. However  for the super-Alfvenic branch  the compressive soliton is bell-shaped and narrower  and the rarefactive one is broadened. When the charge-to-mass ratio of the dust grains is sufficiently high  the width of the rarefactive soliton  in the super-Alfvenic branch  will broaden extremely and a electron depletion will be observed. It is also shown that the bell-shaped soliton can transition to a cusped structure when the velocity is sufficiently high. (C) 2008 American Institute of Physics.   The instability of dust acoustic waves in inhomogeneous dusty plasmas with non-adiabatic dust charge fluctuation 期刊论文 CHINESE PHYSICS B, 2008, 卷号: 17, 期号: 7, 页码: 2594-2599 作者:  Zhang Li-Ping;  Xue Ju-Kui 收藏  |  浏览/下载：0/0  |  提交时间：2019/11/15 instability of low frequency waves  inhomogeneity  non-adiabatic dust charge variation   Multidimensional nonlinear dust acoustic shock waves in nonuniform magnetized dusty plasmas with nonadiabatic dust charge fluctuation 期刊论文 PHYSICS OF PLASMAS, 2008, 卷号: 15, 期号: 5 作者:  Zhang, Li-Ping;  Xue, Ju-Kui 收藏  |  浏览/下载：0/0  |  提交时间：2019/11/15 Dust  Ion acoustic waves  Magnetic field effects  Magnetization  Plasmas   The dust acoustic waves in a hot nonthermal dusty plasma with variable dust charge under transverse perturbations 期刊论文 Canadian Journal of Physics, 2008, 卷号: Vol.86 No.12, 页码: 1381-1385 作者:  By:Wang, HY [ 1 ];  Zhang, KB [ 1 ] 收藏  |  浏览/下载：4/0  |  提交时间：2019/02/25 Ions  Physics  Plasma  Mathematical models  Acoustics  Sound waves  Dust