2012
DOI: 10.1364/ao.51.006745
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Using a fuzzy system in the study of the luminescence and potency of neodymium ions

Abstract: The processes of energy transfer and diffusion of photons emitted by Nd(3+) ions embedded into a glass sample were investigated. The luminescence resolved in space allowed the observation of the photons' spatial distribution. In this paper, we propose a fuzzy mathematical model that permits carrying out calculations based on the neighborhood luminescence intensity of the excitation spot laser. This proposed model differs from other well-known ones in the literature because it shows clearly the luminescence int… Show more

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Cited by 3 publications
(3 citation statements)
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“…Such systems are called partially fuzzy or for short, p-fuzzy systems. The term comes from the fact that in ordinary differential equations the systems are partially fuzzy in the sense that the direction field of the Initial Value Problem, IVP, in question is partially known [3,14,15]. However, its solution is real and at each time t, a corresponding value is obtained after a defuzzification process.…”
Section: Partially Fuzzy Systemsmentioning
confidence: 99%
“…Such systems are called partially fuzzy or for short, p-fuzzy systems. The term comes from the fact that in ordinary differential equations the systems are partially fuzzy in the sense that the direction field of the Initial Value Problem, IVP, in question is partially known [3,14,15]. However, its solution is real and at each time t, a corresponding value is obtained after a defuzzification process.…”
Section: Partially Fuzzy Systemsmentioning
confidence: 99%
“…The PCO calibration tests were performed by the calibration of signal receiver antennas GNSS, a Leica Geosystems antenna model LEIAX1202GG at Calibration Base of Antennas GNSS installed at UFPR (BCAL/UFPR) during two months. Inspired by Ferreira (2012), the FRBS were written in the Matlab environment and the results show it is possible to model the PCO components, thus contributing to a reduction in calibration costs, since after being calibrated a few times, one can predict the parameters, while presenting the potential to minimize the direct calibration of the antenna at its base.…”
Section: Introductionmentioning
confidence: 99%
“…Em [26], os autores apresentam uma equação diferencial parcial difusiva-advectiva com parâmetro fuzzy para descrever o comportamento de formigas cortadeiras. Também, [16] modela a luminescência de íons de Neomídio próximo ao ponto de incidência do laser de excitação, através de um sistema parcialmente fuzzy (p-fuzzy) de uma equação diferencial parcial. O estudo de algumas EDP, tais como, do calor, da onda e de Poisson com um parâmetro sendo representado por um número fuzzy foi apresentado em [7].…”
Section: Introductionunclassified