Ion beam-plasma interactions are the source of wave activity in several space environments. Therefore the study of these waves and their parametric decays are very important in space physics. Thus we study parametric decays ...

For statistical inference connected to the scalar skew-normal distribution, it is known that the so-called centred parametrization provides a more convenient parametrization than the one commonly employed for writing the ...

In this paper, two parametric families of functions, the so-called Complementary Fresnel Integral and the Lommel type, which are of generalized Fresnel integral type, are considered. We review the problems of existence ...

Two parametrically-induced phenomena are addressed in the context of a double pendulum subject to a vertical base excitation. First, the parametric resonances that cause the stable downward vertical equilibrium to bifurcate ...

This paper presents a study on non-parametric tests to verify the similarity between two small samples of variables classified into multiple categories. The study shows that the only tests available for this situation are ...

We study parametric decays of electron/ion whistler waves. These waves have negative energy and their parametric decays are expected to lead to explosive instabilities. Simulation studies show explosive growth of some of ...

Piezo-electric energy harvesters (PEHs) are widely used to recycle waste vibrations for pow-ering small electronic devices. In this work, the performance of PEHs of non-conventional shapes is studied with the aim to optimize ...