The effects of dielectric shield on specific absorption rate and heat transfer in the human body exposed to leakage microwave energy

Wessapan, Teerapot; Srisawatdhisukul, Siramate; Rattanadecho, Phadungsak

doi:10.1016/j.icheatmasstransfer.2010.12.004

Cited by 37 publications

(18 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…They also found that when a dielectric shield was kept in front of human model, the temperature increase, and the specific absorption rate were significantly affected with respect to the operating frequency. 249 The specific absorption rate and temperature increase were found to be lesser at high frequencies (1300 and 2450 MHz) than compared to low frequencies (300 MHz). 249 Further, studies on using single and double slot MCA for microwave ablation were carried out and the results showed that the specific absorption rate distribution and temperature increase was found to be higher for single slot MCA than that of double slot MCA.…”

Section: Biomedical Applicationsmentioning

confidence: 85%

“…249 The specific absorption rate and temperature increase were found to be lesser at high frequencies (1300 and 2450 MHz) than compared to low frequencies (300 MHz). 249 Further, studies on using single and double slot MCA for microwave ablation were carried out and the results showed that the specific absorption rate distribution and temperature increase was found to be higher for single slot MCA than that of double slot MCA. 250 In the same manner, microwave surgery which consists of a microwave tissue coagulator is used to control hemorrhage during hepatic resection.…”

Section: Biomedical Applicationsmentioning

confidence: 85%

See 1 more Smart Citation

Microwave material processing—a review

2011

View full text Add to dashboard Cite

Microwave heating is caused by the ability of the materials to absorb microwave energy and convert it to heat. This article represents a review on fundamentals of microwave heating and their interaction with materials for various applications in a comprehensive manner. Experimental studies of single, multimode, and variable frequency microwave processing were reviewed along with their applications. Modeling of microwave heating based on Lambert's law and Maxwell's electromagnetic field equations have also been reviewed along with their applications. Modeling approaches were used to predict the effect of resonances on microwave power absorption, the role of supports for microwave heating, and to determine the nonuniformity on heating rates. Various industrial applications on thermal processing have been reviewed. There is tremendous scope for theoretical and experimental studies on the athermal effects of microwaves. Some of the unresolved problems are identified and directions for further research are also suggested.

show abstract

Section: Biomedical Applicationsmentioning

confidence: 85%

Section: Biomedical Applicationsmentioning

confidence: 85%

Microwave material processing—a review

2011

View full text Add to dashboard Cite

show abstract

“…In general the results concerning field reduction showed that shielding efficiency greatly depends on a series of variables: position of the material with respect to the handset's antenna, structure and composition of the material, orientation of the absorbing/reflecting fibers with which emitted radiation interacts, dimensions of the entire shield, etc. (Tomovski, Grabner, Hungsberg, Kallmeyer & Linsel, 2011;Wessapan, Srisawatdhisukul & Rattanadecho, 2011;Dutta, Jayasree & Srinivasa, 2016;Miclaus et al, 2016). Both a decrease of the specific absorption rate (SAR) of energy deposition in the head exposed to a "shielded" mobile phone can be achieved, but sometimes even an increase of local SAR could be observed.…”

Section: Introductionmentioning

confidence: 99%

Shielding Efficiency of a Fabric Based on Amorphous Glass-Covered Magnetic Microwires to Radiation Emitted by a Mobile Phone in 2G and 3G Communication Technologies

Miclăuș

Mihai²,

Aron³

et al. 2017

Land Forces Academy Review

View full text Add to dashboard Cite

show abstract

“…In other hand, SAR also means a measure of the rate at which energy is absorbed by the human body when exposed to a radio frequency (RF) electromagnetic field. SAR is derived from the square of the (direct) electric field strength (E) in tissue [6]:…”

Section: Introductionmentioning

confidence: 99%

A Review on Level of Specific Absorption Rate Due to High Power Transmission Lines: Analysis toward Human Position Posture

et al. 2016

View full text Add to dashboard Cite

Abstract. The main contribution of this project is the development of a homogeneous model of a man to presents the specific absorption rate (SAR) due to high power transmission line. As a low frequency application under high power transmission line of 50 Hz in electrical engineering, to studies the influence of human's posture on specific absorption rate. This project designs two types of human body which one design uses most cylinder block and another design use brick block where both blocks have a different value of mesh cells. For each design has four types of posture are standing, sitting, arms up and arms out by using Computer Simulation Technology (CST) Studio Software. This analysis does toward for four types of the human position postures because each posture has different value of specific absorption rate (SAR) based on the size of the mesh cells of the design. Based on two designs of the human body, the lowest of the mesh cells value will reduce time to simulate SAR. For each posture has different value of SAR for each part of the human body because the whole human body has different types of tissues. Therefore, the CST studio software uses extremely to simulate the SAR value toward human position posture due to high power transmission line.

show abstract

The effects of dielectric shield on specific absorption rate and heat transfer in the human body exposed to leakage microwave energy

Cited by 37 publications

References 16 publications

Microwave material processing—a review

Microwave material processing—a review

Shielding Efficiency of a Fabric Based on Amorphous Glass-Covered Magnetic Microwires to Radiation Emitted by a Mobile Phone in 2G and 3G Communication Technologies

A Review on Level of Specific Absorption Rate Due to High Power Transmission Lines: Analysis toward Human Position Posture

Contact Info

Product

Resources

About