Non-Ionizing Radiation Measurements for Trajectography Radars

Abstract

This work presents a Non-Ionizing Radiation (NIR) measurement campaign and proposes a specific measurement method for trajectography radars. This kind of radar has a high gain narrow beam antenna and emits a high power signal. Power density measurements from a C-band trajectography radar are carried out using bench equipment and a directional receiving antenna, instead of the commonly used isotropic probe. The measured power density levels are assessed for compliance test via comparison with the occupational and general public exposure limit levels of both the International Commission on Non-Ionizing Radiation Protection (ICNIRP) and the Brazilian National Telecommunication Agency (Anatel). The limit for the occupational public is respected everywhere, evidencing the safe operation of the studied radar. However, the limit for the general public is exceeded at a point next to the radar’s antenna, showing that preventive measures are needed.

Nutritional, anthropometric and behavioral aspects of nutrition students that consume alcoholic beverages

“…Neste sentido, têm se observado o consumo exacerbado de drogas lícitas entre universitários como, por exemplo, bebidas alcoólicas. Este consumo exagerado pode afetar negativamente a saúde do indivíduo, sua socialização e sua vida acadêmica (BARBOSA FILHO;CAMPOS;LOPES, 2012;STOCKINGS et al, 2016).…”