extremely low frequency


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extremely low frequency

n. Abbr. ELF
A radio frequency below 300 hertz.

extremely low frequency

n
(General Physics) a radio frequency or radio-frequency band below 3 kilohertz. Abbreviation: ELF

extreme′ly low′ fre′quency


n.
any radio frequency between 30 and 300 hertz. Abbr.: ELF
[1965–70]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.extremely low frequency - below 3 kilohertz
radio frequency - an electromagnetic wave frequency between audio and infrared
electromagnetic spectrum - the entire frequency range of electromagnetic waves
References in periodicals archive ?
Magnetic Therapy Devices Market: Drivers and Restraints New technological advancements in upcoming magnetic therapy devices such as introduction of microTesla magnetic field therapy and extremely low frequency magnetic field (ELF MF) based magnetic therapy, along with wide adoption for magnetic therapy devices among end users has reported to be a key driving factor for revenue growth in global magnetic therapy devices market.
Animal models and studies are presented in patients, as well as potential therapeutic interventions, such as the transplantation of hematopoietic cells and the extremely low frequency magnetic field.
A possible involvement of beta-endorphin, substance P, and serotonin in rat analgesia induced by extremely low frequency magnetic field.
Electromagnetic field of extremely low frequency decreased adenylate kinase activity in retinal rod outer segment membranes.
A 2007 report by Government advisory body Stakeholder Advisory Group on Extremely Low Frequency Electric and Magnetic Fields (SAGE) found there was evidence living near electricity lines could be linked to childhood leukaemia.
Located in Cypress, California, it specializes in directed or detected wave energy from lasers, high power microwaves, electromagnetic pulses to extremely low frequency electromagnetics and sound.
Jahani-, "Effects Of Extremely Low Frequency Electromagnetic Fields On Growth And Viability Of Bacteria, " 1: 8-15(2013).
Sarihi, "Effects of exposure to an extremely low frequency electromagnetic field on hippocampal long-term potentiation in rat," Brain Research, vol.
Prato, "The influence of extremely low frequency magnetic fields on cytoprotection and repair," Bioelectromagnetics, vol.
The geophysics textbook reviews recent advances in near-term earthquake prediction that detect electromagnetic activity emanating from a region, and describe radio techniques for observing direct current geoelectric signals, ultra-low frequency electromagnetic emissions, extremely low frequency waves, and very low frequency anomalies.

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