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Andreas Christ
Researcher at ETH Zurich
Publications - 63
Citations - 3784
Andreas Christ is an academic researcher from ETH Zurich. The author has contributed to research in topics: Specific absorption rate & Finite-difference time-domain method. The author has an hindex of 27, co-authored 57 publications receiving 3394 citations. Previous affiliations of Andreas Christ include École Polytechnique Fédérale de Lausanne.
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Journal ArticleDOI
The Virtual Family—development of surface-based anatomical models of two adults and two children for dosimetric simulations
Andreas Christ,Wolfgang Kainz,Eckhart G. Hahn,Katharina Honegger,Marcel Zefferer,Esra Neufeld,Esra Neufeld,Wolfgang Rascher,Rolf Janka,Werner Bautz,Ji Chen,Berthold Kiefer,Peter Schmitt,Hans Peter Hollenbach,Jianxiang Shen,M. Oberle,Dominik Szczerba,Anthony Kam,Joshua Guag,Niels Kuster,Niels Kuster +20 more
TL;DR: All tissues and organs were reconstructed as three-dimensional unstructured triangulated surface objects, yielding high precision images of individual features of the body, which greatly enhances the meshing flexibility and the accuracy in comparison with the traditional voxel-based representation of anatomical models.
Journal ArticleDOI
Evaluation of Wireless Resonant Power Transfer Systems With Human Electromagnetic Exposure Limits
Andreas Christ,Mark Douglas,J. M. Roman,Emily B. Cooper,Alanson P. Sample,Benjamin H. Waters,Joshua R. Smith,Niels Kuster +7 more
TL;DR: In this paper, an exposure assessment of a representative wireless power transfer system, under a limited set of operating conditions, is provided in order to estimate the maximum electromagnetic exposure levels, where the system operates at low MHz frequencies and achieves power transfer via near field coupling between two resonant coils located within a few meters of each other.
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Comparisons of computed mobile phone induced SAR in the SAM phantom to that in anatomically correct models of the human head
Brian B. Beard,Wolfgang Kainz,Teruo Onishi,T. Iyama,Soichi Watanabe,Osamu Fujiwara,Jianqing Wang,Giorgi Bit-Babik,Antonio Faraone,Joe Wiart,Andreas Christ,Niels Kuster,Ae-Kyoung Lee,H. Kroeze,M. Siegbahn,Jafar Keshvari,H. Abrishamkar,W. Simon,Dirk Manteuffel,Neviana Nikoloski +19 more
TL;DR: In this article, specific absorption rates (SAR) determined computationally in the specific anthropomorphic mannequin (SAM) and anatomically correct models of the human head when exposed to a mobile phone model are compared as part of a study organized by IEEE Standards Coordinating Committee 34, Sub-Committee 2, and Working Group 2.
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The dependence of electromagnetic far-field absorption on body tissue composition in the frequency range from 300 MHz to 6 GHz
TL;DR: In this paper, the authors used the same methods considering different locations of the body and the respective variations of the tissue structures and dimensions, showing a significant increase of 2.2-4.7 dB of the peak spatial specific absorption rate (SAR) in comparison to the values assessed with standard liquids.
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Assessing Human Exposure to Electromagnetic Fields From Wireless Power Transmission Systems
TL;DR: The safety guidelines and the fundamental coupling mechanisms of the human body with the electromagnetic near fields of WPT are reviewed as well as the methodology and the instrumentation for the demonstration of the safety of such systems operating between 100 kHz and 50 MHz.