1,616 research outputs found
Large Amplitude Solitons And Double Layers In Multicomponent Dusty Plasmas
No full textSupposing that the constituents of dusty plasmas are inertialess electrons, inertialess ions, and an admixture of negatively and positively charged inertial dust grains, and employing the nonlinear multi-fluid dusty plasma equations and Poisson's equation, we have derived dynamical equations for small amplitude nonlinear dust-acoustic waves, as well as the energy integral of a classical particle with a modified Sagdeev potential for large amplitude disturbances. The energy integral is analyzed both analytically and numerically to demonstrate the existence of rarefactive and compressive electrostatic potentials which travel faster than the effective dust-acoustic velocity. Compressive dust-acoustic potential exist only when there is a significant fraction of positively charged dust grains. Furthermore, the four-fluid dusty plasma system also admit double layers.84181183Rao, N.N., Shukla, P.K., Yu, M.Y., (1990) Planet. Space Sci., 38, p. 543Shukla, P.K., (1992) Physica Scripta, 45, p. 510Shukla, P.K., Rahman, H.U., (1996) Phys. Plasmas, 3, p. 430Shukla, P.K., (1999) Phys. Lett., A252, p. 340Barkan, A., Merlino, R.L., D'Angelo, N., (1995) Phys. Plasmas, 2, p. 3563Merlino, R.L., Barkan, A., Thompson, C., D'Angelo, N., (1998) Phys. Plasmas, 5, p. 1607Prabhakara, H.R., Tanna, V.L., (1996) Phys. Plasmas, 3, p. 3176Morfill, G., Thomas, H., Zuzic, M., (1997) Advances in Dusty Plasma, pp. 99-142. , (edited by P. K. Shukla, D. A. Mendis and T. Desa), World Scientific, SingaporeNakamura, Y., Odagiri, T., Tsukabayashi, I., (1997) Plasma Phys. Control Fusion, 39, p. 105Nakamura, Y., Tsukabayashi, I., (1984) Phys. Rev. Lett., 52, p. 2356Watanabe, S., (1984) J. Phys. Soc. Japan, 53, p. 950Tajiri, M., Tuda, M., (1985) J. Phys. Soc. Japan, 54, p. 19Sheridan, T.E., (1998) J. Plasma Phys., 60, p. 17Shukla, P.K., (1994) Phys. Plasmas, 1, p. 1362Sagdeev, R.Z., (1966) Reviews of Plasma Physic, pp. 23-91. , (edited by M. A. Leontovich), Consultants Bureau, New YorkSakanaka, P.H., Shukla, P.K., Theory of Solitons and Double Layers in Multicomponent Dusty Plasmas, , in preparatio
Self-organized And Chaotic States In Nonuniform Dusty Magnetoplasmas With Sheared Flows
No full textIt is well known that sheared plasma flows can be built up both in astrophysical environments as well as in laboratory dusty plasmas. Our objective here is to understand the coupling of velocity gradient energy to electrostatic and electromagnetic waves in nonuniform dusty magnetoplasma. For this purpose, we employ the multi-fluid dusty plasma model and derive the relevant nonlinear equations for low-frequency (in comparison with the ion gyrofrequency) waves in the presence of sheared plasma flows. Linear dispersion relations are derived and analyzed. It is found that both the electrostatic and electromagnetic waves are driven by sheared plasma flows. Furthermore, the newly derived mode coupling equations provide the possibility of self-organized and chaotic states in dusty plasmas. The results of our investigation should be helpful in understanding the properties of dusty plasma microturbulence when sources and sinks are simultaneously present.75158160Shukla, P.K., Vanna, R.K., Krishan, V., McKenzie, J.F., (1993) Phys. Rev., E47, p. 750Goertz, C.K., (1989) Rev. Geophys., 27, p. 271De Angelis, U., (1992) Physica Scripta, 45, p. 465Shukla, P.K., (1996) The Physics of Dusty Plasma, pp. 107-121. , (Edited by P. K. Shukla, D. A. Mendis and V. W. Chow) World Scientific, SingaporeLorenz, E.N., (1964) J. Atmos. Sci., 20, p. 130Stenflo, L., (1996) Phys. Lett., A212, p. 224Mirza, A.M., Shukla, P.K., (1997) Phys. Lett., A229, p. 31
Annual edition : production and operations management 2001 / 2002, 2nd ed./ editor : P.K. Shukla.
No full textx, 214 hal. : ill. ; 28 cm
Annual edition : production and operations management 2001 / 2002, 2nd ed./ editor : P.K. Shukla.
No full textx, 214 hal. : ill. ; 28 cm
Annual edition : production and operations management 2001 / 2002, 2nd ed./ editor : P.K. Shukla.
No full textx, 214 hal. : ill. ; 28 cm
Annual edition : production and operations management 2001 / 2002, 2nd ed./ editor : P.K. Shukla.
No full textx, 214 hal. : ill. ; 28 cm
Annual edition : production and operations management 2001 / 2002, 2nd ed./ editor : P.K. Shukla.
No full textx, 214 hal. : ill. ; 28 cm
Annual edition : production and operations management 2001 / 2002, 2nd ed./ editor : P.K. Shukla.
No full textx, 214 hal. : ill. ; 28 cm
Annual edition : production and operations management 2001 / 2002, 2nd ed./ editor : P.K. Shukla.
No full textx, 214 hal. : ill. ; 28 cm
Annual edition : production and operations management 2001 / 2002, 2nd ed./ editor : P.K. Shukla.
No full textx, 214 hal. : ill. ; 28 cm
- …
