Results 11 to 20 of about 13,780,098 (199)
Specific absorption rate reduction using nonlinear gradient fields [PDF]
Magnetic Resonance in Medicine, 2012 The specific absorption rate is used as one of the main safety parameters in magnetic resonance imaging. The performance of imaging sequences is frequently hampered by the limitations imposed on the specific absorption rate that increase in severity at higher field strengths.
Kopanoglu, E. +3 more
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Specific absorption rate of magnetic nanoparticles: Nonlinear AC susceptibility [PDF]
Journal of Applied Physics, 2020 In the context of magnetic hyperthermia, several physical parameters are used to optimize the heat generation, and these include the nanoparticles concentration and the magnitude and frequency of the external AC magnetic field. Here, we extend our previous work by computing nonlinear contributions to the specific absorption rate, while taking into ...
Déjardin, J-L, Vernay, F, Kachkachi, H
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On the specific absorption rate of hyperthermia fluids
Applied Physics Letters, 2013 The specific absorption rate (SAR) concept of hyperthermia ferrofluids is discussed. It is first suggested that SAR can be characterized at the steady state condition, taking into account the heating flow mechanism from the ferrofluid to the external environment.
PERIGO, Elio Alberto +2 more
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Experimental Assessment of Specific Absorption Rate Using Room Electromagnetics [PDF]
IEEE Transactions on Electromagnetic Compatibility, 2012 A closed room environment is viewed as a lossy cavity, characterized by possibly a line of sight (LOS) component and diffuse scattering parts from walls and internal obstacles. A theory used in acoustics and reverberation chambers is applied for the electromagnetics case, and main issues related to measurement systems, antennas characteristics, diffuse
Bamba, Aliou +7 more
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A novel technology for fast and accurate specific absorption rate measurement
2013 International Workshop on Antenna Technology (iWAT), 2013 Standard Specific Absorption Rate (SAR) measurement methods are highly time consuming. Compliance test lead times for mobile wireless devices are incompatible with current needs in the industry and become a growing pain with the emergence of 4G communications.
Derat, Benoit +6 more
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Post‐processing algorithms for specific absorption rate compression [PDF]
Magnetic Resonance in Medicine, 2021 Purpose Compression of local specific absorption rate (SAR) matrices is essential for enabling SAR monitoring and efficient pulse calculation in parallel transmission. Improvements in compression result in lower error margin and/or lower number of virtual observation points (VOPs). The purpose of this work is to
Stephan Orzada +3 more
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Magnetochemistry, 2022 Magnetic iron oxide nanoparticles were obtained for the first time via the green chemistry approach, starting from two aqueous extracts of wormwood (Artemisia absinthium L.), both leaf and stems.
Elena-Alina Moacă +12 more
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Fushe yanjiu yu fushe gongyi xuebao, 2023 In this study, the biological electromagnetic dose variations and uncertainty caused by body weight differences in experimental animals were evaluated.
SUN Yichen, DU Dan, LI Jing, LIN Jiajin
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Materials Research Express, 2022 In this study, the microstructural, optical, and magnetic properties and specific absorption rate (SAR) of bismuth ferrite/SiO _2 nanoparticles were successfully investigated. The coprecipitation method was used to synthesize the nanoparticles.
Erna Juwita +4 more
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Compression Behavior of SLM-Prepared 316L Shwartz Diamond Structures under Dynamic Loading
Crystals, 2022 In this paper, the compression behavior of a triply minimal periodic surface (Shwartz Diamond) fabricated by selective laser melting (SLM) under different loading rates was studied. A quasi-static strain rate of 2.22 × 10−3/s was tested using a universal
Qingyan Ma, Zhonghua Li, Jiaxin Li
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