scholarly journals Assimilation of global-scale and mesoscale electric fields from low-latitude satellites

Radio Science ◽  
2004 ◽  
Vol 39 (1) ◽  
pp. n/a-n/a ◽  
Author(s):  
J. Vincent Eccles
Keyword(s):  
Electric Fields ◽  
Global Scale ◽  
Low Latitude

Electric fields in the low latitude F-region

1996 ◽  
Vol 18 (6) ◽  
pp. 93-98 ◽  
Author(s):  
B.V. Krishna Murthy ◽  
S.S. Hari
Keyword(s):  
Electric Fields ◽  
Low Latitude ◽  
F Region

Modelling the ionospheric and plasmaspheric plasma

1989 ◽  
Vol 328 (1598) ◽  
pp. 255-270 ◽  
Keyword(s):  
Electric Fields ◽  
High Latitude ◽  
Thermal Plasma ◽  
Topside Ionosphere ◽  
Neutral Atmosphere ◽  
High Latitudes ◽  
Polar Wind ◽  
Low Latitude ◽  
Flux Tubes ◽  
Thermospheric Winds

Under magnetically quiet conditions, the outer plasmasphere is the equatorw ard boundary of the region in which high-latitude processes, such as convection, significantly affect the ionosphere. The low-latitude side of the ionospheric midlatitude trough is located in the plasmasphere. The behaviour of the nightside trough is influenced by field-aligned flows of plasma, as well as by convection drifts, thermospheric winds and particle precipitation. The modelling of field-aligned flow of thermal plasma at high latitudes (the polar wind) still presents problems. The composition of the background neutral atmosphere plays a role in causing the occasional dominance of He+ in the topside ionosphere. Penetration of magnetospheric electric fields into the outer plasmasphere can influence the rate of refilling of the upper reaches of the flux tubes.

Interplay between Fracture and Domain Switching of Ferroelectrics

2006 ◽  
Vol 306-308 ◽  
pp. 501-510
Author(s):  
Y.Q. Cui ◽  
Wei Yang
Keyword(s):  
Experimental Data ◽  
Crack Initiation ◽  
Electric Fields ◽  
Large Scale ◽  
Inner Core ◽  
Domain Switching ◽  
Global Scale ◽  
Theoretical Predictions ◽  
T Stress ◽  
Cylindrical Inclusions

Applications of above-coercive electric fields lead to domain switching of a large or global scale. Large scale switching model is proposed to deal with load-induced domains witching in experiment. Both a discussion of crack initiation via the stress intensity factor and a discussion of crack path stability via T-stress are presented. The theoretical predictions and the experimental data roughly coincide for crack initiation, propagation and stability phenomena. Attention is also extended to consider the effect of non-uniform ferro-elastic domain switching in the vicinity of a crack. The domain switching zone is divided into a saturated inner core and an active surrounding annulus. Toughening for ferroelectrics with different poling states is estimated via Reuss type approximation. Solutions obtained according to spherical and cylindrical inclusions cover the range of experimental data.

A study of low-latitude VHF scintillations in relation to electric fields during magnetic storms

Radio Science ◽  
1993 ◽  
Vol 28 (3) ◽  
pp. 389-400 ◽  
Author(s):  
D. R. Lakshmi ◽  
R. S. Dabas ◽  
B. C. N. Rao ◽  
B. M. Reddy
Keyword(s):  
Electric Fields ◽  
Magnetic Storms ◽  
Low Latitude
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