Very-Low-Frequency Electromagnetic Field Detector With Data Acquisition

2009 ◽  
Vol 58 (1) ◽  
pp. 129-140 ◽  
Author(s):  
S.A. Hanna ◽  
Y. Motai ◽  
W.J. Varhue ◽  
S. Titcomb
Keyword(s):  
Electromagnetic Field ◽  
Data Acquisition ◽  
Low Frequency ◽  
Very Low Frequency

scholarly journals Effects of Electromagnetic Field Use on Jaw Bone Densification

2019 ◽  
Vol 69 (12) ◽  
pp. 3705-3709
Author(s):  
Edwin Sever Bechir ◽  
Farah Bechir ◽  
Bogdan Vladila
Keyword(s):  
Electromagnetic Field ◽  
Adjuvant Therapy ◽  
Bone Regeneration ◽  
Alveolar Bone ◽  
Low Frequency ◽  
Very Low Frequency ◽  
Non Invasive ◽  
Field Therapy ◽  
Radiological Examinations ◽  
Appreciable Reduction

The working hypothesis started from the premise of the benefits of the electromagnetic field therapy (EMFT) benefits in order to densify the periodontal bone tissues. The objective of this study was to quantify the results of using this therapy with the Electronic Doctor Stem Generator (EDSG) in the densification of affected alveolar bone tissues by clinical and radiological examinations. The study was performed on 30 patients, who benefited from adjuvant therapy in the electromagnetic field (EMF) with the EDSG device after performing the specific dental treatments. We applied these very low-frequency EMF bioactivation treatment delivered by EDSG device, 30 daily exposures for a 2-hour interval. The results proved the appreciable reduction of teeth mobility, the reduction of periodontal pockets depth and the bone regeneration in the regions exposed to the EMF produced by EDSG device. EMF adjuvant therapy with EDSG device is an innovative, atraumatic and non-invasive therapy.

scholarly journals High Sensitivity Very Low Frequency Receiver for Earthquake Data Acquisition

2017 ◽  
Vol 15 (1) ◽  
pp. 150 ◽  
Author(s):  
Achmad Munir ◽  
Kusmadi Kusmadi ◽  
Kusnandar Kusnandar ◽  
Asep Najmurrokhman ◽  
Chairunnisa Chairunnisa ◽  
...  
Keyword(s):  
Data Acquisition ◽  
Low Frequency ◽  
High Sensitivity ◽  
Very Low Frequency ◽  
Earthquake Data

Effect of very Low Frequency Electromagnetic Radiation on Acetylcholine Esterase Activity

2014 ◽  
Vol 1004-1005 ◽  
pp. 827-836
Author(s):  
Hong Wang ◽  
Zheng Wei Du ◽  
Pei Dong Guo ◽  
Yun Ming Tang
Keyword(s):  
Electromagnetic Field ◽  
Enzyme Activity ◽  
Electric Field ◽  
Electromagnetic Radiation ◽  
Exposure Time ◽  
Esterase Activity ◽  
Ache Activity ◽  
Electric Field Intensity ◽  
Low Frequency ◽  
Very Low Frequency

Acetylcholinesterase (AChE) is the enzyme that controls the acetylcholine (ACh) concentrations in cholinergic synaptic clefts by hydrolyzing ACh to choline and acetate. In this paper, we investigate the effect of very low frequency (VLF) electromagnetic field (EMF) radiation on AChE activity. AChE was exposed to VLF-EMFs with electric field intensity ranged from 0 to 200V/m and exposure time ranged from 0 to 120min. The results demonstrated that the VLF-EMF increased enzyme activity when the intensity ranged from 80V/m to 100V/m as well as exposure time ranged from 60min to 80min. And the AChE activity decreased when the intensity ranged from 120V/m to 140V/m and exposure time ranged from 20min to 120min. Thus, those results are significant in clinical treatments.

scholarly journals Multi-Experiment Observations of Ionospheric Disturbances as Precursory Effects of the Indonesian Ms6.9 Earthquake on August 05, 2018

2020 ◽  
Vol 12 (24) ◽  
pp. 4050
Author(s):  
Xuemin Zhang ◽  
Yalu Wang ◽  
Mohammed Boudjada ◽  
Jing Liu ◽  
Werner Magnes ◽  
...  
Keyword(s):  
Electromagnetic Field ◽  
Electric Field ◽  
Low Frequency ◽  
Ionospheric Disturbances ◽  
Radio Waves ◽  
Ionospheric Perturbations ◽  
Very Low Frequency ◽  
Ion Drift ◽  
Ionospheric Height

Taking the 2018 Ms6.9 Indonesia earthquake as a case study, the ionospheric perturbations in very low frequency (VLF) transmitters recorded by China Seismo-Electromagnetic Satellite (CSES) were mainly investigated, as well as the multi parameters of the plasma and electromagnetic field. The characteristics of electron density (Ne), GPS TEC, ULF electric field, ion drift velocity, and ionosphere height were extracted and compared with the features of the signal-noise ratio (SNR) from VLF transmitters of NWC at the southern hemisphere and JJI at the northern hemisphere. Most disturbances in VLF radio waves occurred along the orbits near the epicenter within 10 days before the earthquake. Along these orbits, we observed simultaneous modulations in the Ne and ULF electric field, as well as the changed ion drifting directions. There was also high spatial correspondence between both SNR and ionospheric height anomalies over the epicentral and its magnetic conjugate regions. Combined with the multi observations, these results suggest that the genesis of perturbations in signals emitted by VLF transmitters on satellite was more likely related to the overlapped electric field in the preparation area of the earthquake.

Sign in / Sign up

Export Citation Format

Share Document