Results 21 to 30 of about 13,367,485 (282)

On the measurement procedures for the assessment of the specific absorption rate (SAR) from MIMO cellular-equipment of fast varying relative phases

open access: yesComptes Rendus. Physique, 2021
This article introduces a measurement methodology for the evaluation of the specific absorption rate (SAR) of MIMO systems (multiple-input and multiple-output) in which the relative phases between the antennas are rapidly changing and in very short ...
Teniou, Mounir   +5 more
doaj   +1 more source

Monte-Carlo Based Numerical Dosimetry in Reverberation Chamber Exposure Systems Employed for in-Vivo Rodent Bioassays

open access: yesIEEE Access, 2023
A Monte-Carlo based computational approach for the statistical characterization of the whole-body specific absorption rate (wbSAR) variability in large cohorts of rodents exposed to radio-frequency (RF) energy in reverberation chambers (RCs) is applied ...
Valerio De Santis   +4 more
doaj   +1 more source

Design and Evaluation of a Button Sensor Antenna for On-Body Monitoring Activity in Healthcare Applications

open access: yesMicromachines, 2022
A button sensor antenna for on-body monitoring in wireless body area network (WBAN) systems is presented. Due to the close coupling between the sensor antenna and the human body, it is highly challenging to design sensor antenna devices. In this paper, a
Shahid Muhammad Ali   +9 more
doaj   +1 more source

Numerical Modeling of Smartphones with WCDMA, LTE, and WLAN Bands for Epidemiological Studies [PDF]

open access: yesJournal of Electromagnetic Engineering and Science, 2022
This paper presents the representative numerical modeling of smartphones with wideband code division multiple access (WCDMA), long-term evaluation (LTE), and wireless local area network (WLAN) bands for epidemiological studies. For this purpose, based on
Jisu Lee   +4 more
doaj   +1 more source

Effect of shape, size and electrical properties on specific absorption rate (SAR)

open access: yesInternational Journal of Research and Engineering, 2019
This paper presents the dependency of SAR distribution in the human brain and eye on the shape, size, and electrical properties for different frequencies. Calculations were carried out using the Finite Difference Time Domain (FDTD) Method. The results indicate that the SAR distribution does not much depend on the shape and size but it depends mainly on
M. A. A. Karunarathna   +2 more
openaire   +2 more sources

Carbothermal treated iron oxide nanoparticles with improving magnetic heating efficiency for hyperthermia

open access: yesResults in Physics, 2022
Iron oxide nanoparticles with high magnetic heating efficiency is highly desired for magnetic hyperthermia applications. In this paper, carbothermal treatments with graphene are used for improving the magnetic heating efficiency of iron oxide ...
Xudong Zuo   +4 more
doaj   +1 more source

Development of health-based exposure limits for radiofrequency radiation from wireless devices using a benchmark dose approach

open access: yesEnvironmental Health, 2021
Background Epidemiological studies and research on laboratory animals link radiofrequency radiation (RFR) with impacts on the heart, brain, and other organs. Data from the large-scale animal studies conducted by the U.S. National Toxicology Program (NTP)
Uloma Igara Uche, Olga V. Naidenko
doaj   +1 more source

Experimental and computational evaluation of capacitive hyperthermia

open access: yesInternational Journal of Hyperthermia, 2022
Objective Hyperthermia as an enhancer of radio- and/or chemotherapy has been confirmed by various trials. Quite a few positive randomized trials have been carried out with capacitive hyperthermia systems (CHS), even though specific absorption rates (SAR)
Marcus Beck   +13 more
doaj   +1 more source

Design and dose characteristics of 1-6 GHz radio frequency exposure platform

open access: yesFushe yanjiu yu fushe gongyi xuebao, 2022
In this study, a broad-spectrum bioelectromagnetic exposure platform was developed and a dose calculation study under the corresponding exposure conditions was performed. The radio frequency exposure platform was in the frequency band of 1-6 GHz, and its
DU Dan   +6 more
doaj   +1 more source

Development of a Numerical Tablet Model in WLAN Band for SAR Study [PDF]

open access: yesJournal of Electromagnetic Engineering and Science, 2022
This research proposes a numerical model for a tablet in the wireless local area network band for specific absorption rate (SAR) study. The design criteria, such as the tablet size, operating frequencies, antenna position, and target 1-g peak spatial ...
Jisu Lee   +4 more
doaj   +1 more source

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