Salah I. Yahya

8 Questions 29 Answers 0 Followers

Questions related from Salah I. Yahya

Which equation is valid for E-QS approximation to model the RFA?

To find E in RF ablation using EM Low-Frequency solver, an Electro QuasiStatic approximation can be used; ∇⋅ϵ~∇ϕ=0, Electro QuasiStatic ... (1) ϵ~ := ϵrϵ0 + σjω ϵ~; is the complex...

04 July 2015 2,065 0 View

What is the acceptable amount of tissue damage due to the thermal ablation?

I am modeling the Radiofrequency ablation (RFA) of kidney tumor, and during this thermal ablation, I can not avoid damaging some tissue around the tumor. My question is; what is the acceptable...

23 June 2015 5,072 2 View

Is there any international standard, concerning power and time, should be applied during the thermal treatment using the RFA bipolar electrode?

I am trying to make a numerical model for the RF ablation of Kidney tumor using a bipolar electrode. I need to know the maximum power and time to be applied using a bipolar electrode.

03 June 2015 1,229 1 View

How to set the Thermal Boundary Conditions for the human tissues in the numerical dosimetry of low-pass birdcage MRI?

I am trying to compute the heat generated in anatomical human body tissues, particularly in the head, due to the induced SAR. The human body is inside a low-pass birdcage MRI. I am using a...

16 December 2014 7,576 20 View

Is it possible to combine the Electrical Field radiation beam patterns of different frequencies?

If you have two antenna sources working at different frequencies, is it possible to combine both antennas radiation beam patterns? I mean is their a logic in this radiation pattern combination?

30 August 2014 9,585 12 View

What is the type of antenna used in satellite phone?

Any idea about the type/structure of antenna used in satellite phone, e.g., Thuraya and Iridium?

22 August 2014 4,061 3 View

How much SAR induced is in human body due to the mobile base-station antenna radiation, at different frequencies and different distances?

Are there any publications with a numerical modeling of human body exposure to the EM waves of the mobile base station antenna for different GSM frequencies?

23 July 2014 1,972 3 View

What materials have high real and imaginary parts of relative permittivity, and permittivity equal to permeability, as well?

Need to use such materials for stealth coating to reduce the back scattering.

28 May 2014 4,162 2 View