Electric field patterns as seismic precursors

1995 ◽  
Vol 22 (22) ◽  
pp. 3087-3090 ◽  
Author(s):  
E. Yépez ◽  
F. Angulo-Brown ◽  
J. A. Peralta ◽  
C. G. Pavía ◽  
G. González-Santos
Keyword(s):  
Electric Field ◽  
Seismic Precursors ◽  
Field Patterns

scholarly journals Generation of Focused Electric Field Patterns at Dielectric Surfaces

2005 ◽  
Vol 77 (14) ◽  
pp. 4667-4672 ◽  
Author(s):  
Jessica Olofsson ◽  
Mikael Levin ◽  
Anette Strömberg ◽  
Stephen G. Weber ◽  
Frida Ryttsén ◽  
...  
Keyword(s):  
Electric Field ◽  
Dielectric Surfaces ◽  
Field Patterns ◽  
Focused Electric Field

Progress on relating optical auroral forms and electric field patterns

1998 ◽  
Vol 103 (A3) ◽  
pp. 4271-4284 ◽  
Author(s):  
M. L. Johnson ◽  
J. S. Murphree ◽  
G. T. Marklund ◽  
T. Karlsson
Keyword(s):  
Electric Field ◽  
Field Patterns

Electromagnetic Characteristics of Yagi-Uda Antenna at HF/VHF/UHF

2018 ◽  
Vol 3 (2) ◽  
pp. 7-11
Author(s):  
Raji A. Abimbola
Keyword(s):  
Electric Field ◽  
Method Of Moments ◽  
Current Distribution ◽  
High Frequency ◽  
Very High Frequency ◽  
Radiation Characteristics ◽  
Radiation Beam ◽  
Field Patterns ◽  
Electromagnetic Characteristics ◽  
Very High

In this paper, the radiation characteristics of Yagi-Uda antenna operating at High Frequency (HF), Very High Frequency (VHF) and Ultra High Frequency (UHF) are examined. Upon employing method of moments, the current distribution on the antenna emerges from the solution of matrix equation. It is found that the angular distribution of electric field intensity generated in free space by the antenna, obtained by evaluating the integral of associated current distribution, is characterized by patterns with significant portion of radiation beam in the main lobe in the direction of Yagi axis. This is accompanied by relatively small undesirable radiation in the minor lobe, and which persist over those communication frequencies. It is observed also that the current distribution that generates the radiated electric field patterns is relatively consistent over the same range of frequency.

scholarly journals DWT-based methodology for detection of seismic precursors on electric field signals in Mexico

2018 ◽  
Vol 9 (1) ◽  
pp. 281-294
Author(s):  
O. Chavez ◽  
J. R. Millan-Almaraz ◽  
J. Rodríguez-Reséndiz ◽  
J. P. Amezquita-Sanchez ◽  
M. Valtierra-Rodriguez ◽  
...  
Keyword(s):  
Electric Field ◽  
Seismic Precursors

Anisotropy of Microporous Fe-Based Samples Deduced from Electric Field Patterns and Resistivity Measurements

2003 ◽  
Vol 442 ◽  
pp. 121-126
Author(s):  
A. Manzano-Ramírez ◽  
M.E. Pérez-Ramos ◽  
P.P. Horley ◽  
P. Vorobiev ◽  
J. González-Hernández ◽  
...  
Keyword(s):  
Electric Field ◽  
Resistivity Measurements ◽  
Field Patterns
Sign in / Sign up

Export Citation Format

Share Document