Zobrazeno 1 - 10
of 15
pro vyhledávání: '"D. R. Nicholson"'
Publikováno v:
Physics of Fluids B: Plasma Physics. 4:1432-1440
Strongly nonlinear plasma oscillations in a cold plasma are investigated in the wave breaking regime using the two‐fluid model. The electrons are described in Lagrangian coordinates; the ions are described by the usual Eulerian coordinates. The mod
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::258e020732896fe06d3249b5edb49dc0
https://doi.org/10.1063/1.860105
https://doi.org/10.1063/1.860105
Publikováno v:
Physics of Fluids B: Plasma Physics. 4:708-718
A one‐dimensional hybrid simulation model incorporating one of the Zakharov equations for the high‐frequency waves and a particle‐in‐cell (PIC) simulation of the ions is described and applied to ionospheric heating using realistic parameters.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::634f91bde1bd9dc8373b4600aea0d158
https://doi.org/10.1063/1.860269
https://doi.org/10.1063/1.860269
Publikováno v:
Geophysical Research Letters. 17:2213-2216
Ionospheric heating leads to strong Langmuir turbulence including modulational instability, soliton formation, and spatial collapse. The Zakharov model usually used to describe these effects contains a low-frequency ion-acoustic wave equation which c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9ad7a67d448604771ed5672b0e6c57fa
https://doi.org/10.1029/gl017i012p02213
https://doi.org/10.1029/gl017i012p02213
Publikováno v:
The Journal of Burn Care & Rehabilitation. 24:S164-S164
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c989091b485b85fdffd9af7750279e41
https://doi.org/10.1097/00004630-200303002-00244
https://doi.org/10.1097/00004630-200303002-00244
Autor:
D. R. Nicholson, J. P. Sheerin
Publikováno v:
Physics Letters A. 97:395-398
RF modifiers at some existing ionosheric heating facilities are found to be sufficiently intense for the production of (collapsing) solitons. Considering the detection of these solitons using Thomson radar, we treat the problem of an electromagnetic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c831e3ef989b63439dc98fbf71d1de96
https://doi.org/10.1016/0375-9601(83)90673-4
https://doi.org/10.1016/0375-9601(83)90673-4
Publikováno v:
Physics of Fluids B: Plasma Physics. 1:1797-1804
The analytic theory of weak Langmuir turbulence is well known, but very little has previously been done to compare its predictions with numerical solutions of the basic dynamical evolution equations. In this paper, numerical solutions of the statisti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3cdb8183423025b52f82250000022a16
https://doi.org/10.1063/1.858910
https://doi.org/10.1063/1.858910
Publikováno v:
Symposium - International Astronomical Union. 91:299-302
We describe a model for first stage electron acceleration based on quasi-linear interaction with Langmuir waves. The acceleration takes place in a MHD-unstable plasma region (length L, volume V) that contains many microscopically unstable current lay
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8e7684e7a9e42eaf3c3bb42086a7f37e
https://doi.org/10.1017/s0074180900067759
https://doi.org/10.1017/s0074180900067759
Publikováno v:
Journal of Plasma Physics. 25:225-231
Equipotential contours for a moving test charge in isotropic Maxwellian plasma are determined numerically for a wide range of test charge speeds.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2fd00e74e84d87be0a73bb3324763219
https://doi.org/10.1017/s0022377800023084
https://doi.org/10.1017/s0022377800023084
Autor:
D. R. Nicholson
Publikováno v:
Physica Scripta. 27:77-82
Progress in two approaches to the study of strong Langmuir turbulence is reported. In two spatial dimensions, numerical solution of the Zakharov equations yields a steady state involving linear growth, linear damping, and a collection of coherent, lo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cfe1fe1fecfdd64cad5bcf47aaccda8f
https://doi.org/10.1088/0031-8949/27/2/004
https://doi.org/10.1088/0031-8949/27/2/004
Autor:
P. J. Hansen, D. R. Nicholson
Publikováno v:
American Journal of Physics. 47:769-771
Solutions to linear wave equations can always be expressed as a superposition of special solutions called plane waves. Some solutions to an important class of nonlinear wave equations can be thought of as a superposition of special solutions called s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ba84be9daf0934d5c226b1456346e9a3
https://doi.org/10.1119/1.11925
https://doi.org/10.1119/1.11925