Author: HECTOR RODRIGUEZ RANGEL

Soft computing methods with phase space reconstruction for wind speed forecasting—A performance comparison

MARIO GRAFF GUERRERO Juan Flores José Cedeño HECTOR RODRIGUEZ RANGEL RODRIGO LOPEZ FARIAS Felix Calderon (2019)

This article presents a comparison of wind speed forecasting techniques, starting with the Auto-regressive Integrated Moving Average, followed by Artificial Intelligence-based techniques. The objective of this article is to compare these methods and provide readers with an idea of what method(s) to apply to solve their forecasting needs. The Artificial Intelligence-based techniques included in the comparison are Nearest Neighbors (the original method, and a version tuned by Differential Evolution), Fuzzy Forecasting, Artificial Neural Networks (designed and tuned by Genetic Algorithms), and Genetic Programming. These techniques were tested against twenty wind speed time series, obtained from Russian and Mexican weather stations, predicting the wind speed for 10 days, one day at a time. The results show that Nearest Neighbors using Differential Evolution outperforms the other methods. An idea this article delivers to the reader is: what part of the history of the time series to use as input to a forecaster? This question is answered by the reconstruction of phase space. Reconstruction methods approximate the phase space from the available data, yielding m (the system’s dimension) and τ (the sub-sampling constant), which can be used to determine the input for the different forecasting methods.

JCR del journal reportado al año de publicación del artículo (2019): 2.702

Article

Machine learning Time series forecasting Wind speed forecasting INGENIERÍA Y TECNOLOGÍA CIENCIAS TECNOLÓGICAS TECNOLOGÍA DE LOS ORDENADORES INFORMÁTICA INFORMÁTICA

Coexistence of two-photon absorption and saturable absorption in ion-implanted platinum nanoparticles in silica plates

Carlos Torres Torres jhovani bornacelli Bonifacio Alejandro Can Uc Héctor Gabriel Silva Pereyra Luis Rodríguez Fernández MIGUEL AVALOS BORJA GLADIS JUDITH LABRADA DELGADO JUAN CARLOS CHEANG WONG Raúl Rangel Rojo ALICIA MARIA OLIVER Y GUTIERREZ (2018)

"Platinum nanoparticles were nucleated in a high-purity silica matrix by an ion-implantation method. The third-order nonlinear optical response of the samples was studied using femtosecond pulses at 800 nm with the z-scan technique; picosecond pulses at 532 nm using a self-diffraction approach; and nanosecond pulses at 532 nm employing a vectorial two-wave mixing experiment. Nanosecond and picosecond explorations indicated an important thermal process participating in the optical Kerr effect evaluated. However, femtosecond results allowed us to distinguish a purely electronic response, related exclusively to ultrafast refractive and absorptive nonlinearities. Femtosecond experiments pointed out the possibility to switch the dominant physical mechanism responsible for the nonlinear optical absorption in the sample. This opens the potential for controlling quantum mechanisms of optical nonlinearity by femtosecond interactions."

Article

Nonlinear-optical response 3rd-order nonlinearities Enhancement Excitation Nanosheets CIENCIAS FÍSICO MATEMÁTICAS Y CIENCIAS DE LA TIERRA ASTRONOMÍA Y ASTROFÍSICA ASTRONOMÍA ÓPTICA OPTICA FÍSICA OPTICA FÍSICA

Pensamiento Novohispano 18

MAURICIO HARDIE BEUCHOT PUENTE ARTURO EDMUNDO GUADALUPE RAMIREZ TREJO Hilda Lagunas Ruiz NAPOLEON ROSARIO CONDE GAXIOLA NOE HECTOR ESQUIVEL ESTRADA Gerardo Pérez FLORENCIO BARRERA GUTIERREZ Hugo Ernesto Ibarra Ortiz MA. DE LOURDES ORTIZ SANCHEZ ANNIA GONZALEZ TORRES ADOLFO YUNUEN REYES RODRIGUEZ VIRGINIA TREJO PINEDO Anna Jurek ANDREA MARIA DEL ROCIO MERLOS NAJERA ROSA MARIA CAMACHO QUIROZ ALMA GUADALUPE CORONA PEREZ Gerardo González Reyes Magdalena Pacheco Regules MARTHA EUGENIA RODRIGUEZ PEREZ JIMENA PEREZBLAS PEREZ RODOLFO SANCHEZ RAMIREZ SALVADOR VERA PONCE JESUS ANTONIO DE LA TORRE RANGEL (2017)

Éste libro se enriquece con la contribución de investigaciones propias del periodo colonial (XVI-XVIII), a través de aportaciones de colegas de diversas universidades del país. Todas son un testimonio vivo de la pluralidad y riqueza cultural correspondiente a este momento histórico.

La distribución de trabajos que se ha seguido en este número de la Colección corresponde a los siguientes tres siglos: El siglo XVI reúnen diez contribuciones que dan cuenta de la diversidad temática y de los intereses de cada investigador. El siglo XVII compila cinco ensayos, uno de los cuales presenta a dos maestros del villancico polifónico. El siglo XVIII ofrece, entre otros aportes, la preocupación del médico Marcos Joseph Salgado, tanto en el orden de la salud pública como en la formación de los futuros médicos. Finalmente, se presenta un homenaje el Dr. Mauricio Beuchot por su dedicación y contribución al pensamiento novohispano.

Universidad Autónoma del Estado de México, UAEM.

Article

Siglo XVI Filosofía México Colonia Testamento Novohispana Indígena Pensamiento Iberoamerica Derechos Humanos Cultura Política Época Colonial CIENCIAS SOCIALES