scholarly journals Rotating fermions inside a spherical boundary

2020 ◽  
Vol 102 (6) ◽  
Author(s):  
Zheng Zhang ◽  
Chao Shi ◽  
Xiaofeng Luo ◽  
Hong-Shi Zong
Keyword(s):  
Spherical Boundary

ACOUSTIC WAVES AND THEIR EFFECTS ON ANTENNA IMPEDANCE

1967 ◽  
Vol 45 (3) ◽  
pp. 1251-1269 ◽  
Author(s):  
J. Carlin ◽  
R. Mittra
Keyword(s):  
Acoustic Waves ◽  
Exact Expression ◽  
Acoustic Velocity ◽  
Dielectric Sphere ◽  
Hydrodynamic Description ◽  
Spherical Boundary ◽  
Warm Plasma ◽  
Compressibility Effects ◽  
Phase Length ◽  
Variational Expression

Expressions have been derived for the terminal admittance of a biconical dipole encased in a dielectric sphere which is immersed in a warm plasma. A linearized hydrodynamic description is used for the plasma. For thin-angle cones an exact expression is derived. For thick-angle cones the terminal admittance is related to the aperture fields at the spherical boundary of the cones by means of a variational expression. The admittance was found to be strongly dependent on the ratio of the velocity of light in free space to the acoustic velocity in the plasma. Compressibility effects seem to be quite significant if the acoustical "phase length" of the antenna is between approximately 0.5 and 10.

scholarly journals Fast Dynamos in Spherical Boundary-Driven Flows

2013 ◽  
Vol 111 (12) ◽  
Author(s):  
I. V. Khalzov ◽  
C. M. Cooper ◽  
C. B. Forest
Keyword(s):  
Spherical Boundary

Free boundary minimal hypersurfaces with spherical boundary

2016 ◽  
Vol 290 (5-6) ◽  
pp. 885-889 ◽  
Author(s):  
Sung-Ho Park ◽  
Juncheol Pyo
Keyword(s):  
Free Boundary ◽  
Minimal Hypersurfaces ◽  
Spherical Boundary
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