scholarly journals Scalar and electromagnetic fields of static sources in higher dimensional Majumdar-Papapetrou spacetimes

2012 ◽  
Vol 85 (6) ◽  
Author(s):  
Valeri P. Frolov ◽  
Andrei Zelnikov
Keyword(s):  
Electromagnetic Fields ◽  
Higher Dimensional

scholarly journals Magnetic String with a NonlinearU(1)Source

2014 ◽  
Vol 2014 ◽  
pp. 1-10 ◽  
Author(s):  
S. H. Hendi
Keyword(s):  
Asymptotic Behavior ◽  
Magnetic Fields ◽  
Electromagnetic Fields ◽  
Einstein Gravity ◽  
Rotation Parameter ◽  
Conserved Quantities ◽  
Curvature Singularity ◽  
Conic Singularity ◽  
Higher Dimensional ◽  
Rotation Parameters

Considering the Einstein gravity in the presence of Born-Infeld type electromagnetic fields, we introduce a class of 4-dimensional static horizonless solutions which produce longitudinal magnetic fields. Although these solutions do not have any curvature singularity and horizon, there exists a conic singularity. We investigate the effects of nonlinear electromagnetic fields on the properties of the solutions and find that the asymptotic behavior of the solutions is adS. Next, we generalize the static metric to the case of rotating solutions and find that the value of the electric charge depends on the rotation parameter. Furthermore, conserved quantities will be calculated through the use of the counterterm method. Finally, we extend four-dimensional magnetic solutions to higher dimensional solutions. We present higher dimensional rotating magnetic branes with maximum rotation parameters and obtain their conserved quantities.

FOUR- AND HIGHER-DIMENSIONAL MODELS WITH DILATON–ELECTROMAGNETIC FIELDS

2001 ◽  
Vol 10 (04) ◽  
pp. 523-528 ◽  
Author(s):  
NARAYAN CHANDRA CHAKRABORTY ◽  
SUBENOY CHAKRABORTY
Keyword(s):  
Asymptotic Behavior ◽  
Electromagnetic Fields ◽  
Dilaton Field ◽  
Field Equations ◽  
General Solutions ◽  
Higher Dimensional ◽  
Bianchi Iii ◽  
Dimensional Models ◽  
Frw Models

The Einstein–Maxwell dilaton field equations are constructed for four-dimensional Bianchi III and five-dimensional FRW models. The general solutions have been obtained and their asymptotic behavior have been studied.

Effect of pulsed electromagnetic fields on maturation of regenerate bone in a rabbit limb lengthening model

2005 ◽  
Vol 24 (1) ◽  
pp. 2-10 ◽  
Author(s):  
Kenneth F. Taylor ◽  
Nozumu Inoue ◽  
Bahman Rafiee ◽  
John E. Tis ◽  
Kathleen A. McHale ◽  
...  
Keyword(s):  
Electromagnetic Fields ◽  
Limb Lengthening ◽  
Pulsed Electromagnetic Fields ◽  
Pulsed Electromagnetic

Effects of 60 Hz Electromagnetic Fields on Melatonin and Sleep in Rats

2001 ◽  
Author(s):  
Jeff Dyche ◽  
Michael Morrissey ◽  
Eric Powell ◽  
A. Michael Anch
Keyword(s):  
Electromagnetic Fields

Developing GIS portal to ensure sanitary and epidemiological surveillance of transferring radio engineering objects

2020 ◽  
Vol 99 (4) ◽  
pp. 344-350
Author(s):  
Evgeny V. Zibarev ◽  
A. S. Afanasev ◽  
O. V. Slusareva ◽  
T. I. Muragimov ◽  
V. A. Stepanets ◽  
...  
Keyword(s):  
Electromagnetic Fields ◽  
Analytical Data ◽  
Base Stations ◽  
Epidemiological Surveillance ◽  
Graphical Form ◽  
Residential Areas ◽  
Information Portal ◽  
Radiofrequency Electromagnetic Fields ◽  
Online Mode ◽  
Automated Processes

In recent years, in the Russian Federation there has been an increase in the levels of radiofrequency electromagnetic fields in residential areas, including due to an increase in the number of base stations (BS). The purpose of sanitary and epidemiological surveillance at the stages of placement and commissioning of base stations (BS) is to prevent their adverse effects on public health. The increase in the number of base stations, together with the advent of new electronic equipment and antennas, provide opportunities for improving the processes of their accounting at the stage of placement and monitoring of the levels of radiofrequency electromagnetic fields at the operation stage. This automation tool can be a geo-information portal for providing sanitary and epidemiological surveillance of cellular base stations. The prototype of the geo-information portal allows both calculating the size of sanitary protection zones (SPZ) and building restriction zones (RZ) from the BS in online mode, displaying the results of calculations in graphical form and issuing sanitary and epidemiological conclusions for the placement and operation of base stations. The geo-information portal has the ability to synchronize with the data of the radio frequency center. Federal Service for Surveillance on Consumer Rights Protection and Human Wellbeing will be able to receive up-to-date analytical data. There will be completely automated processes of collecting, processing and storing information on BS.

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