Results 11 to 20 of about 19,671,460 (302)

Investigation of High - Frequency Electromagnetic Fields Radiated by Mobile Phone

open access: yesAdvances in Electrical and Electronic Engineering, 2004
In the last few years mobile phones have become an usual part of our daily life. The number of their users increases rapidly every year. Frequency asked question among general public and among specialist is safety of mobile phones for human health. paper
Vilibalda Darmova
doaj   +1 more source

Computation of transient electromagnetic fields due to switching in high voltage substations [PDF]

open access: yes, 2010
Switching operations of circuit breakers and disconnect switches radiate transient electromagnetic fields within high-voltage substations. The generated fields may interfere and disrupt normal operations of electronic equipment.
Siew, W.H., Musa, B.U., Judd, M.D.
core   +4 more sources

Analysis of Non-Idealities in the Generation of Reconfigurable Sinc-Shaped Optical Nyquist Pulses

open access: yesIEEE Access, 2021
Optical sinc-shaped Nyquist pulses are widely used in microwave photonics, optical signal processing, and optical telecommunications due to their numerous advantages, like rectangular shape in the frequency domain, the orthogonality and the consequential
Souvaraj De   +4 more
doaj   +1 more source

Influence of a thin dielectric layer on resonance frequencies of square SRR metasurface operating in THz band

open access: yesOpen Engineering, 2023
This article investigates the effect of an additional thin dielectric layer on the top of the metasurface (MS), on the transmission of electromagnetic waves in the terahertz band.
Lopato Przemyslaw   +3 more
doaj   +1 more source

Defect Detection in CFRP Concrete Reinforcement Using the Microwave Infrared Thermography (MIRT) Method—A Numerical Modeling and Experimental Approach

open access: yesApplied Sciences, 2023
This research paper presents the application of the microwave infrared thermography (MIRT) technique for the purpose of detecting and characterizing defects in the carbon-fiber-reinforced polymer (CFRP) composite reinforcement of concrete specimens ...
Sam Ang Keo   +4 more
doaj   +1 more source

The effect of radiofrequency electromagnetic fields (RF-EMF) on biomarkers of oxidative stress in vivo and in vitro: A protocol for a systematic review

open access: yesEnvironment International, 2022
Background: Oxidative stress is conjectured to be related to many diseases. Furthermore, it is hypothesized that radiofrequency fields may induce oxidative stress in various cell types and thereby compromise human and animal health.
Bernd Henschenmacher   +13 more
doaj   +1 more source

Characterisation of exposure to non-ionising electromagnetic fields in the Spanish INMA birth cohort: study protocol [PDF]

open access: yes, 2016
Analysis of the association between exposure to electromagnetic fields of non-ionising radiation (EMF-NIR) and health in children and adolescents is hindered by the limited availability of data, mainly due to the difficulties on the exposure assessment ...
Guerra Pereda, David   +111 more
core   +1 more source

The effect of exposure to radiofrequency electromagnetic fields on cognitive performance in human experimental studies: A protocol for a systematic review

open access: yesEnvironment International, 2021
Background: The World Health Organization (WHO) is currently assessing the potential health effects of exposure to radiofrequency electromagnetic fields (RF-EMFs) in the general and working population.
Blanka Pophof   +10 more
doaj   +1 more source

Extraction of Shaft-Rate Electromagnetic Field of Ships Based on Adaptive Fourier Decomposition

open access: yes水下无人系统学报, 2023
The shaft-rate electromagnetic field is a crucial feature of ships and undersea vehicles. However, due to the presence of static electromagnetic fields, the signal-to-noise ratio of the shaft-rate electromagnetic fields is greatly reduced. To effectively
Zhenhuan XU, Yongfei WU, Jianxin PEI
doaj   +1 more source

"Good-but-Imperfect" electromagnetic reverberation in a VIRC [PDF]

open access: yes, 2011
Novel theoretical probability density functions (PDF) of electromagnetic fields inside reverberation chambers operating in a “good-but-imperfect‿ regime have been recently reported. The present work reports on the application and assessment of these PDFs
Canavero, F.   +11 more
core   +1 more source

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