This work presents the analysis of an antenna of fractal microstrip of Koch with dielectric multilayers and inclinations in the ground plane, whose values of the angles are zero degree (without inclinations), three, seven ...

Given a Lie group of finite-dimensional transformations acting on a manifold, there is always an action known as a long-acting group action. This action describes the fundamental basis of the Lie theory connecting groups ...

This work aims to present tunable microstrip filters and antennas for applications in wireless communication systems, allowing variations in their resonant frequencies and bandwidths. Thus, in systems that present a ...

Path integration is a navigation strategy widely used by many animals enabling them to return to their starting point, through the processing of angular and distance information. Although path integration is well established ...

The reconstruction of Extensive Air Showers (EAS) observed by particle detectors at the ground is based on the characteristics of observables like the lateral particle density and the arrival times. The lateral densities, ...

The problem of radiowave propagation over ground has been subject of interest for more than one century. As an electromagnetic problem in nature, it is completely described by Maxwell's equations. However, given specific ...

O estudo assume como problema de investigação analisar as contribuições da Comunicação Alternativa e Ampliada (CAA) aos processos comunicativos de alunos sem fala articulada no contexto da escola, destacando nesses processos ...

Diversos tipos de emisiones electromagnéticas asociadas con terremotos han sido reportados ampliamente en la literatura científica, especialmente durante las últimas dos décadas del siglo XX. Según estos reportes la ...