52 research outputs found
Corrigendum: Thalassemia, biobanking infrastructures, and personalized stem cell therapies in Chennai
No full textA Corrigendum onThalassemia, biobanking infrastructures, and personalized stem cell therapies in Chennaiby Panwar, A. (2023). Front. Sociol. 8:1057220. doi: 10.3389/fsoc.2023.1057220In the published article, there was an error in the Funding statement. The Funding statement displayed did not acknowledge UKRI/NERC funding during preparation of the article. The correct statement is “The author also acknowledges support from the NERC grant (NE/T013230/1) during preparation of this article.” The correct Funding statement appears below.<br/
Modulational instability and associated rogue structures of slow magnetosonic wave in Hall magnetohydrodynamic plasmas
No full textStimulated Raman forward scattering of laser in a pre-formed plasma channel
No full textStimulated Raman forward scattering (SRFS) of an intense short pulse laser in a plasma channel formed by two pre-laser pulses is investigated. The density nonuniformity of a plasma channel increases the focusing of main laser pulse. Main laser pulse excites a plasma wave and two electromagnetic sideband waves. Laser and the sidebands exert an axial ponderomotive force on electrons driving the plasma wave. The nonlinear currents arise at sideband frequencies. The density perturbation due to plasma wave beats with the oscillatory velocity due to pump to drive the sidebands. The normalized growth rate of SRFS increases with the density nonuniformity of a plasma channel. However, in the presence of a deep plasma channel the focusing is ineffective to laser intensity, but the growth rate increases with the intensity of main laser pulse.X114sciescopu
Sagdeev potential approach for large amplitude compressional Alfvenic double layers in viscous plasmas
No full textLarge amplitude inertial compressional Alfvénic shock and solitary waves, and acceleration of ions in magnetohydrodynamic plasmas
No full textCompressional Alfvenic rogue and solitary waves in magnetohydrodynamic plasmas
No full textGeneration of compressional Alfvenic rogue and solitary waves in magnetohydrodynamic plasmas is investigated. Dispersive effect caused by non-ideal electron inertia currents perpendicular to the ambient magnetic field can balance the nonlinear steepening of waves leading to the formation of a soliton. The reductive perturbation method is used to obtain a Korteweg-de Vries (KdV) equation describing the evolution of the solitary wave. The height of a soliton is proportional to the soliton speed "U" and inversely proportional to plasma "beta" (ratio of plasma thermal pressure to pressure of the confining magnetic field) and the width of soliton is proportional to the electron inertial length. KdV equation is used to study the nonlinear evolution of modulationally unstable compressional Alfvenic wavepackets via the nonlinear Schrodinger equation. The characteristics of rogue wave influenced by plasma "beta" and the electron inertial length are described. (C) 2013 AIP Publishing LLC.open111715sciescopu
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