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This paper presents a non-destructive technique (NDT) using active infrared thermography and FEM analyses with Comsol Multiphysics software applied for thermal distribution detection through reinforced concrete. For this work a reinforced concrete slab was created having a parallelepiped shape, the length and the width of 400 mm and the thickness of 50 mm. The concrete slab was reinforced using a rebar mesh of 18 mm diameter. The experimental installation consisted of an electrical heating source and a steel frame for fixing the slab and for the thermal distribution analyses an infrared camera was used. The same type of material and conditions like in the laboratory was used for the FEM analyses in Comsol Multiphysiscs to compare with the experimental part. A concrete slab without steel was used to determine the difference between the simple concrete and reinforced concrete in the heat transfer process.

The exposure of human tissue under the electromagnetic radiation can lead at the modifying of the biological rhythms of the cell. According to the recent researches that indicate that the exposure of the tissue under electromagnetic radiation leads at its heating, some researchers realized different devices for the adsorption of the electromagnetic radiation produced by the mobile phones. In this paper are presented the effects of electromagnetic radiation produced by a mobile phone under the facial tissue in comparison with the effects produced by the same phone that contains a device for the electromagnetic radiation adsorption. The main objectives of this research are the evaluation of the level of facial tissue heating, after the prolonged phone conversation and the comparison with the level of tissue heating due to the electromagnetic radiation produced by a mobile phone with a device of radiation absorption.