Analytical analysis of the propagation of MHD waves in the ionospheric waveguide

1991 ◽  
Vol 34 (2) ◽  
pp. 106-113
Author(s):  
A. O. Ovchinnikov
Keyword(s):  
Mhd Waves ◽  
Analytical Analysis ◽  
Ionospheric Waveguide

Linear Visco-Resistive Computations of Magnetohydrodynamic Waves: I. The Code and Test Cases

1994 ◽  
Vol 144 ◽  
pp. 503-505
Author(s):  
R. Erdélyi ◽  
M. Goossens ◽  
S. Poedts
Keyword(s):  
Resonant Absorption ◽  
Numerical Code ◽  
Mhd Waves ◽  
Test Cases ◽  
Numerical Accuracy ◽  
Element Discretization ◽  
Flux Tubes ◽  
Magnetohydrodynamic Waves ◽  
Viscosity Coefficients ◽  
Magnetic Flux Tubes

AbstractThe stationary state of resonant absorption of linear, MHD waves in cylindrical magnetic flux tubes is studied in viscous, compressible MHD with a numerical code using finite element discretization. The full viscosity tensor with the five viscosity coefficients as given by Braginskii is included in the analysis. Our computations reproduce the absorption rates obtained by Lou in scalar viscous MHD and Goossens and Poedts in resistive MHD, which guarantee the numerical accuracy of the tensorial viscous MHD code.

Theory of low-scale mhd waves in the near equatorial region of the earth plasmasphere

2001 ◽  
Vol 7 (2s) ◽  
pp. 74-83
Author(s):  
O.S. Burdo ◽  
◽  
O.K. Cheremnykh ◽  
O.P. Verkhoglyadova ◽  
◽  
...  
Keyword(s):  
Equatorial Region ◽  
Mhd Waves ◽  
The Earth

Non-Linear Interaction of MHD Waves with Small-Scale Ionospheric Irregularities

2004 ◽  
Vol 61 (7-12) ◽  
pp. 1055-1071
Author(s):  
N. N. Gerasimova ◽  
V. G. Sinitsin ◽  
Yu. M. Yampolski
Keyword(s):  
Ionospheric Irregularities ◽  
Mhd Waves ◽  
Small Scale ◽  
Linear Interaction ◽  
Non Linear

THE IMPACT OF INFORMATION AND COMMUNICATION TECHNOLOGIES ON THE ECONOMY OF OUR COUNTRY

2020 ◽  
Vol 11 (3) ◽  
pp. 80-85
Author(s):  
Bekzod Bobomurodov ◽  
◽  
Dilfuza Akabirxodjayeva
Keyword(s):  
Information And Communication Technologies ◽  
Communication Technologies ◽  
Analytical Analysis ◽  
Information And Communication ◽  
The Impact

This article has discussed the importance of information and communication technologies for the economy of Uzbekistan and the ongoing reforms in this area. The purpose of the study is to give suggestions and recommendations for the development of ICT in Uzbekistan. In the article, an analytical analysis of employment in the field of ICT has been accomplished.

Analytical Analysis of Disturbed Radio Broadcast

2013 ◽  
Author(s):  
Jan Reimes ◽  
Marc Lepage ◽  
Frank Kettler ◽  
Jörg Zerlik ◽  
Frank Homann ◽  
...  
Keyword(s):  
Analytical Analysis ◽  
Radio Broadcast

Influence of thermal conduction on MHD waves properties in thermally unstable plasma

2016 ◽  
Vol 52 (1-2) ◽  
pp. 199-208 ◽  
Author(s):  
N. E. Molevich ◽  
D. S. Ryashchikov ◽  
D. I. Zavershinskiy
Keyword(s):  
Thermal Conduction ◽  
Mhd Waves ◽  
Unstable Plasma

Unsteady 3D and analytical analysis of segregation process in floating zone silicon single crystal growth

2009 ◽  
Vol 45 (4) ◽  
pp. 549-556 ◽  
Author(s):  
K. Lācis ◽  
◽  
A. Muižnieks ◽  
N. Jēkabsons ◽  
A. Rudevičs ◽  
...  
Keyword(s):  
Crystal Growth ◽  
Single Crystal ◽  
Single Crystal Growth ◽  
Silicon Single Crystal ◽  
Floating Zone ◽  
Analytical Analysis ◽  
Segregation Process

scholarly journals Dispersive MHD waves and alfvenons in charge non-neutral plasmas

2008 ◽  
Vol 15 (4) ◽  
pp. 681-693 ◽  
Author(s):  
K. Stasiewicz ◽  
J. Ekeberg
Keyword(s):  
Soliton Solutions ◽  
Theoretical Models ◽  
Mhd Waves ◽  
Space Plasmas ◽  
Charge Effects ◽  
Novel Technique ◽  
Solitary Structures ◽  
Spatial Dimensions ◽  
Electric Potentials ◽  
Linear And Nonlinear

Abstract. Dispersive properties of linear and nonlinear MHD waves, including shear, kinetic, electron inertial Alfvén, and slow and fast magnetosonic waves are analyzed using both analytical expansions and a novel technique of dispersion diagrams. The analysis is extended to explicitly include space charge effects in non-neutral plasmas. Nonlinear soliton solutions, here called alfvenons, are found to represent either convergent or divergent electric field structures with electric potentials and spatial dimensions similar to those observed by satellites in auroral regions. Similar solitary structures are postulated to be created in the solar corona, where fast alfvenons can provide acceleration of electrons to hundreds of keV during flares. Slow alfvenons driven by chromospheric convection produce positive potentials that can account for the acceleration of solar wind ions to 300–800 km/s. New results are discussed in the context of observations and other theoretical models for nonlinear Alfvén waves in space plasmas.

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