Geotail observations of spiky electric fields and low-frequency waves in the plasma sheet and plasma sheet boundary

1994 ◽  
Vol 21 (25) ◽  
pp. 2987-2990 ◽  
Author(s):  
C. Cattell ◽  
F. Mozer ◽  
K. Tsuruda ◽  
H. Hayakawa ◽  
M. Nakamura ◽  
...  
Keyword(s):  
Electric Fields ◽  
Plasma Sheet ◽  
Low Frequency ◽  
Low Frequency Waves

Low-frequency waves in the near-Earth plasma sheet

1995 ◽  
Vol 100 (A6) ◽  
pp. 9605 ◽  
Author(s):  
T. M. Bauer ◽  
W. Baumjohann ◽  
R. A. Treumann ◽  
N. Sckopke ◽  
H. Lühr
Keyword(s):  
Plasma Sheet ◽  
Low Frequency ◽  
Low Frequency Waves

scholarly journals Ultra-low-frequency waves and associated wave vectors observed in the plasma sheet boundary layer by Cluster

2008 ◽  
Vol 113 (A12) ◽  
pp. n/a-n/a ◽  
Author(s):  
M. C. Broughton ◽  
M. J. Engebretson ◽  
K.-H. Glassmeier ◽  
Y. Narita ◽  
A. Keiling ◽  
...  
Keyword(s):  
Boundary Layer ◽  
Plasma Sheet ◽  
Low Frequency ◽  
Plasma Sheet Boundary Layer ◽  
Low Frequency Waves

scholarly journals On the propagation of MHD eigenmodes in a 2-D-magnetotail

2011 ◽  
Vol 29 (1) ◽  
pp. 19-30 ◽  
Author(s):  
G. Fruit ◽  
P. Louarn
Keyword(s):  
Plasma Sheet ◽  
Initial Perturbation ◽  
Low Frequency ◽  
Mhd Equations ◽  
General Idea ◽  
Gradient Term ◽  
Energy Flows ◽  
Set Up ◽  
Low Frequency Waves

Abstract. The propagation of MHD kink/sausage low frequency waves in the magnetotail with a finite normal Bz component is addressed. The general idea is to investigate how a finite Bz may affect the propagation of MHD eigenmodes in the plasma sheet. The standard MHD equations are linearized and solved numerically in a modified Harris sheet. Boundary conditions are chosen such that energy flows outward of the frame box (free propagating system). An initial perturbation is set up in the pressure gradient term and the wave energy is then traced in the system. While a pure 1-D-Harris sheet constitutes an efficient wave guide for MHD eigenmodes, the introduction of a finite Bz in the zero-order geometry changes significantly the propagation of MHD fluctuations: the eigenmodes propagate much more slowly and carry little energy whereas a pure sound wave is excited and propagates isotropically in the system. The presence of a finite Bz thus tends to inhibit the MHD propagation of energy along the plasma sheet. It tends rather to spread the energy throughout the magnetotail. As an application of the above study, the role of a permanent X-point structure on MHD propagation in the plasma sheet is also explored.

PEMANFAATAN RADIASI ENERGI TEGANGAN 150 KV UNTUK LAMPU LED PENERANGAN JALAN

Jurnal Teknik ◽  
2018 ◽  
Vol 7 (1) ◽  
Author(s):  
Mauludi Manfaluthy
Keyword(s):  
Magnetic Field ◽  
Electric Field ◽  
High Voltage ◽  
Low Frequency ◽  
Energy Utilization ◽  
World Health ◽  
Electromagnetic Signals ◽  
Health Organization ◽  
The Magnetic Field ◽  
Low Frequency Waves

WHO (World Health Organization) concludes that not much effect is caused by electric field up to 20 kV / m in humans. WHO standard also mentions that humans will not be affected by the magnetic field under  100 micro tesla and that the electric field will affect the human body with a maximum standard of 5,000 volts per meter. In this study did not discuss about the effect of high voltage radiation SUTT (High Voltage Air Channel) with human health. The research will focus on energy utilization of SUTT radiation. The combination of electric field and magnetic field on SUTT (70-150KV) can generate electromagnetic (EM) and radiation waves, which are expected to be converted to turn on street lights around the location of high voltage areas or into other forms. The design of this prototype works like an antenna in general that captures electromagnetic signals and converts them into AC waves. With a capacitor that can store the potential energy of AC and Schottky diode waves created specifically for low frequency waves, make the current into one direction (DC). From the research results obtained the current generated from the radiation is very small even though the voltage is big enough.Keywords : Radiance Energy, Joule Thief, and  LED Module.

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