The paper presents a comparative study of the methods used to control and compensate the direct and alternative magnetic fields. Two frequently used methods in the electromagnetic compatibility of the complex biomagnetism installations were analyzed. The two methods refer to the use of inductive magnetic field sensors (only for alternative fields) and of fluxgate magnetometers as active transducers which measures both the direct and alternative components of the magnetic field. The applications of the dynamic control of the magnetic field are: control of the magnetic field of the military ships, control of parasite magnetic field produced by power transformers and the electrical networks, protection of the mass spectrometers, electronic microscopes, SQUID and optical pumping magnetometers for applications in biomagnetism

The paper presents the results concerning the utilization of a new class of composite textile materials with electromagnetic properties and the possibility of their utilization in the production of electromagnetic field protective equipment. The experimental and theoretical results concerning the electromagnetic characterization of a new textile material with composite structure are presented also considering the following aspects: - evaluation of the possibilities to use amorphous magnetic microwires in electromagnetic shielding; - study of the electromagnetic properties of the composite textile material, especially the electromagnetic field shielding, reflection and polarization; - determination of the frequency range within which these properties can be used in the realization of materials for the protection against electromagnetic fields. The experimental results of a material sample and a phantom for applications are connected with shielding in the frequency range used in mobile communications

The paper is presenting a study regarding the evolution of the mammary gland during the woman pregnancy using the only non-invasive investigation methods: infrared thermography and microwave radiometry. The cell thermogenesis is explored using a thermography method under the conditions of thickness or health, and permits to reveal some affections or the early detection of the risk to pathology status. During pregnancy any exposure to ionizing radiation is forbidden. If a mammary pathology is developed during the pregnancy period, only the thermography and radiometry techniques can be used in order to monitor the mammary glands. Using these methods possible physiological or pathological modifications can be detected. On this study, we found that if the pregnancy is closer to the final delivery date, the breasts temperatures gets higher and the galactofore channels are more pronounced in the IR imaging.

No abstract

No abstract