Cylindrical nanoparticles immersed in an absorbing environment were studied by evaluating the solutions of Maxwell's equations in a cylindrical symmetry with dispersive materials interacting with electromagnetic radiation. Analytical solutions are developed for the efficiencies, dispersion (Qs), for different complex refractive indices of materials found in the literature. The scattering is derived from the near field solutions on the surface of the studied nanoparticle. The results show that, although the absorbing medium significantly reduces the scattering efficiency, we also studied the intensity of the stray electromagnetic field at different wavelengths and with different sizes of nanoantennas, finely studying the phase profile in terms of the scattering angle.
A systematic review of the literature is developed around the applications of Brain Computer Interface (BCI) devices that use the low-cost Neurosky Mindwave device in the period 2016 -2021, through the PRISMA method, in the IEEE databases. Explore, ScienceDirect and Publindex. 65 publications were analyzed and classified into 12 categories, obtaining research trends in ed ucation, robotics,
well-being in people with motor disabilities, marketing and emotions, Internet of Things (IoT), authentication and software development. The country that contributed the most publications was India and in 2019 the highest number of publications was registered.There is evidence of potential for the use of the MindWave device in applied research and development in the areas described above, given that this is an affordable and economical device.
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