نتایج جستجو برای: mhd effect

تعداد نتایج: 1649669  

2008
Thomas W. Baumgarte

We assemble the equations of general relativistic magnetohydrodynamics (MHD) in 3+1 form. These consist of the complete coupled set of Maxwell equations for the electromagnetic field, Einstein’s equations for the gravitational field, and the equations of relativistic MHD for a perfectly conducting ideal gas. The adopted form of the equations is suitable for evolving numerically a relativistic M...

2009
E. K. Levy R. J. Thome

Introduction An initial feasibility study has been conducted to determine whether the advantages offered by an MHD conversion system for marine use are worth further investigations. 1 In this investigation a gas Brayton MHD cycle and one example of a liquid-metal Rankine MHD cycle were used; required were a power output of 11 megawatts and a given nuclear reactor capable of transmitting a tempe...

2003
Jungyeon Cho

Astrophysical turbulence is magnetohydrodynamic (MHD) in its nature. We discuss fundamental properties of MHD turbulence. In particular, we discuss the generation of compressible MHD waves by Alfvenic turbulence and show that this process is inefficient. This allows us to study the evolution of different types of MHD perturbations separately. We describe how to separate MHD fluctuations into 3 ...

2004
Yu-Qing Lou

In an X-ray binary system, the companion star feeds the compact neutron star with plasma materials via accretions. The spinning neutron star is likely covered with a thin “magnetized ocean” and may support magnetohydrodynamic (MHD) tidal waves. While modulating the thermal properties of the ocean, MHD tidal waves periodically shake the base of the stellar magnetosphere that traps energetic part...

Journal: :Epilepsia 2006
Iolanda Mazzucchelli Filiz Yilmaz Onat Cigdem Ozkara Dilek Atakli Luigi M Specchio Angela La Neve Giuliana Gatti Emilio Perucca

PURPOSE To determine potential changes in the plasma concentrations of oxcarbazepine (OXC) and its metabolites during pregnancy and puerperium. METHODS Five women receiving OXC monotherapy were followed prospectively during pregnancy and the puerperium. Four women were enrolled in the first trimester, and one woman, 2 weeks before delivery. Steady-state concentrations of OXC, its active R-(-)...

Journal: :Development 2001
A Tallafuss T P Wilm M Crozatier P Pfeffer M Wassef L Bally-Cuif

Little is known about the factors that control the specification of the mid-hindbrain domain (MHD) within the vertebrate embryonic neural plate. Because the head-trunk junction of the Drosophila embryo and the MHD have patterning similarities, we have searched for vertebrate genes related to the Drosophila head gap gene buttonhead (btd), which in the fly specifies the head-trunk junction. We re...

Journal: :Matter and Radiation at Extremes 2022

Experiments have identified the Rayleigh–Taylor (RT) instability as one of greatest obstacles to achieving inertial confinement fusion. Consequently, mitigation strategies reduce RT growth and fuel–ablator mixing in hotspot during deceleration phase implosion are great interest. In this work, effect seed magnetic fields on deceleration-phase studied planar cylindrical geometries under condition...

Journal: :journal of computational & applied research in mechanical engineering (jcarme) 2013
t. sudhakar reddy m. c. raju s. v. k. varm

in the present paper, an analysis was carried out to investigate effects of radiation on a free convection flow bounded by a vertical surface embedded in a porous medium with constant suction velocity. it was under the influence of uniform magnetic field in the presence of a homogenous chemical reaction and viscous dissipation with constant heat and mass flux. the non-dimensional governing equa...

Journal: :transport phenomena in nano and micro scales 2014
a. zare ghadi m. sadegh valipour

in the present research mixed convection flow through a copper-water nanofluid in a driven cavity in the presence of magnetic field is investigated numerically. the cavity is heated from top and cooled from bottom while its two vertical walls are insulated. the governing equations including continuity, n-s and energy equations are solved over a staggered grid system. the study is conducted for ...

Journal: :The Astrophysical Journal 2022

We present a statistical analysis on the variability of incompressible energy cascade rate in solar wind around Mars, making use an exact relation for fully developed turbulence and more than five years Mars Atmosphere Volatile EvolutioN (MAVEN) observations. Using magnetic field plasma data, we compute magnetohydrodynamics (MHD) scales pristine wind. From our results, conclude that decreases a...

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