Retarded time absorbing boundary conditions

Berntsen, Svend; Hornsleth, S. N.

doi:10.1109/8.309997

Cited by 49 publications

(17 citation statements)

References 9 publications

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“…The FDTD method was applied to numerically solve the governing Maxwells equations. The simulations were performed on a cubic grid of 5‐mm resolution applying retarded‐time absorbing boundary conditions resulting in a time step of 8.3 ps (18). All simulations were carried out on an in‐house developed FDTD platform (19).…”

Section: Methodsmentioning

confidence: 99%

Simultaneous B homogenization and specific absorption rate hotspot suppression using a magnetic resonance phased array transmit coil

Berg

Bergen

Kamer³

et al. 2007

Magnetic Resonance in Med

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Section: Methodsmentioning

confidence: 99%

Simultaneous B homogenization and specific absorption rate hotspot suppression using a magnetic resonance phased array transmit coil

Berg

Bergen

Kamer³

et al. 2007

Magnetic Resonance in Med

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“…into account the thickness of the blood cell layer and the dilution of the blood in the culture medium (18)(19)(20). The permittivity and conductivity of the cell culture were measured using an HP 85070A probe (blood data from report cited as footnote 4).…”

Section: Exposure Systemmentioning

confidence: 99%

Lack of Genotoxic Effects (Micronucleus Induction) in Human Lymphocytes ExposedIn Vitroto 900 MHz Electromagnetic Fields

Zeni¹,

Chiavoni²,

Sannino³

et al. 2003

Radiation Research

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In the present study, we investigated the induction of genotoxic effects in human peripheral blood lymphocytes after exposure to electromagnetic fields used in mobile communication systems (frequency 900 MHz). For this purpose, the incidence of micronuclei was evaluated by applying the cytokinesis-block micronucleus assay. Cytotoxicity was also investigated using the cytokinesis-block proliferation index. The experiments were performed on peripheral blood from 20 healthy donors, and several conditions were tested by varying the duration of exposure, the specific absorption rate (SAR), and the signal [continuous-wave (CW) or GSM (Global System of Mobile Communication) modulated signal]. The following exposures were carried out: (1) CW intermittent exposure (SAR = 1.6 W/kg) for 6 min followed by a 3-h pause (14 on/off cycles); (2) GSM signal, intermittent exposure as described in (1); (3) GSM signal, intermittent exposure as described in (1) 24 h before stimulation with phytohemagglutinin (8 on/off cycles); (4) GSM signal, intermittent exposure (SAR = 0.2 W/kg) 1 h per day for 3 days. The SARs were estimated numerically. No statistically significant differences were detected in any case in terms of either micronucleus frequency or cell cycle kinetics.

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“…The local error obtained in a vacuum space of 100 2 50 2 100 cubical cells terminated with a 16-layer PML is compared with that obtained by the use of Mur second-order boundary condition [4]. As a new feature, the local error obtained with the retarded time (RT) boundary condition [5] for the same test case is also considered. A pulse source centered in the vacuum space for 100 time steps of simulation was considered exactly as prescribed in [2].…”

Section: Index Terms-fdtd Methodsmentioning

confidence: 99%

“…where, again, the integral limits are chosen for a better matching with the stair-step approximation actually used in the FDTD. For the composite error due to the presence of the PML boundary, we can write therefore E = R + jE FDTD j: (5) In Fig. 2(b), (5) is plotted as a function of n for the various PML thicknesses.…”

Section: Index Terms-fdtd Methodsmentioning

confidence: 99%