Measurements of the orthogonal magnetic components of the pulse component of infralow and very low electromagnetic fields at svalbard

2013 ◽  
Vol 56 (6) ◽  
pp. 706-710 ◽  
Author(s):  
A. A. Galakhov ◽  
O. I. Akhmetov ◽  
V. I. Kirillov
Keyword(s):  
Electromagnetic Fields ◽  
Pulse Component ◽  
Magnetic Components

Electromagnetic fields at work places experts of the cellular companies

10.12737/5019 ◽  
2014 ◽  
Vol 8 (1) ◽  
pp. 1-4
Author(s):  
Горохов ◽  
E. Gorokhov ◽  
Ляпкало ◽  
A. Lyapkalo
Keyword(s):  
Magnetic Fields ◽  
Electromagnetic Radiation ◽  
Electromagnetic Fields ◽  
Electric Fields ◽  
Working Conditions ◽  
Base Stations ◽  
Frequency Range ◽  
Magnetic Components ◽  
Electronic Computers ◽  
The Impact

The paper presents the results of instrumental studies by means of hygienic assessment of levels of electromagnetic fields (EMF) on the workplaces in cellular companies. Measurements of EFM were made on workplaces of 2 groups of employees during the studies: office administrative specialists and technical employees. Instrumental measurements of EMF levels were made by Personal Electronic Computers (PCs) and receivingtransmitting equipment of base cellular stations (BCS). Measurements of EMF from the PC´s screens based on electric and magnetic components were performed: a tension of electric fields with a frequency range of 5Hz-2 kHz and 2 kHz-4 kHz; a tension of magnetic fields in the frequency range of 5Hz-2 kHz and 2 kHz-4 kHz. Measurements of flux density of electromagnetic energy were performed at operating platforms of base stations and at control operating equipment rooms of cellular stations. There were about 150 workplaces of office administrative specialists with PCs surveyed and more 500 workplaces of technical specialists. The activities of administrations of cellular companies were estimated to ensure the safety of working conditions of employees under the influence of electromagnetic radiation (EMR). Literature data on the impact of EMR on human health and health of employees were presented.

scholarly journals Assessment of the impact of forest plantations on the intensity of commercial frequency electromagnetic fields

2019 ◽  
pp. 10-10
Author(s):  
Maria Amirkhanian
Keyword(s):  
Transmission Line ◽  
Electromagnetic Fields ◽  
Power Transmission ◽  
Forest Area ◽  
Power Transmission Line ◽  
Forest Plantations ◽  
Emf Measurements ◽  
Magnetic Components ◽  
Reduction Effect ◽  
The Impact

Introduction. Influence of forest plantations on intensity of electromagnetic fields (EMF) of commercial frequency (50 Hz), generated by high voltage power transmission line (PTL), is considered. Materials and methods. The study was conducted near the village of Boltino in the Moscow Region. The EMF measurements were made on two profiles perpendicular to the 500 kV PTL (power transmission line) axis, one of which passes through the forest area, the other one does not cross it. Measurements of commercial frequency electromagnetic fields (CFEMF) were carried out using a measurement device and antennas, designed to measure the intensities of magnetic and electrical fields. Results. The comparative analysis of the character of change of electric and magnetic components of EMF with distance from the PTL axis allowed to establish the effect of EMF intensity decrease starting from the forest area boundary. Diagrams show that EMF reduction effect is more pronounced for the electrical component. Conclusions. The revealed effect to a certain extent shows the analogy of the forest area with the Faraday cage. However, such an analogy is not complete due to the fact that the forest area is not a perfectly conductive body, but has only a low conductivity. Additional EMF reduction occurs as a result of partial EMF energy absorption by the forest area

scholarly journals ELF electro-magnetic fields as stress factors in some yeasts and molds

2011 ◽  
pp. 147-153
Author(s):  
Tamara Galonja-Coghill ◽  
Ljiljana Kostadinovic ◽  
Gorica Cvijanovic ◽  
Jelena Boskovic ◽  
Dzejn Parkin
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Candida Albicans ◽  
Electromagnetic Fields ◽  
Stress Factors ◽  
Yeast Cultures ◽  
Magnetic Components ◽  
Electric Component ◽  
Electro Magnetic ◽  
As Stress ◽  
Yeasts And Molds

The possibility of species targeted growth inhibition of three yeast (Candida albicans, Cryptococcus neoformans and Saccharomyces cerevisiae) and one mold species (Aspergillus fumigatus) by electromagnetic fields of certain characteristics was investigated. Cultures were exposed to sinusoidal 50 Hz fields, and 10, 40 and 70 mT magnetic components and 20 V/m electric component, for 30 minutes. Cell density in yeast cultures and germination time and rate in mold cultures were investigated.

scholarly journals Autonomous Instrumentation for Measuring Spontaneous Electromagnetic Emissions in Mining

2020 ◽  
Vol 4 ◽  
pp. 98-103
Author(s):  
Krzysztof Maniak ◽  
◽  
Remigiusz Mydlikowski
Keyword(s):  
Real Time ◽  
Electromagnetic Fields ◽  
Rock Stress ◽  
Magnetic Components ◽  
Stress Levels ◽  
Component Strength ◽  
Electromagnetic Emissions ◽  
Electrical Component ◽  
Electromagnetic Disturbances ◽  
Mine Tunnels

This article presents the design of an innovative receiver capable of identifying electric and magnetic components of electromagnetic fields. The receiver senses and records electromagnetic disturbances generated as mine tunnels collapse. It offers excellent operating specification and the ability to sense and log magnetic and electrical component strength values in real time. The paper analyzes the data obtained with the use of a system installed in a working mine and attempts to determine hazards resulting from increased rock stress levels that, cause spontaneous EM emissions.

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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