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|Title:||Inverse optimal control with speed gradient for a power electric system using a neural reduced model|
|Abstract:||Ash flowtuffs, or ignimbrites have been recently proposed to be a good material for palaeointensity determination. In this paper, we present a multidisciplinary study, combining geochronology, petrology, rock magnetism and palaeomagnetism, carried out on Oligocene to Early Miocene ignimbrites and related flows from the southern part of the Sierra Madre Occidental. Two new 40Ar/39Ar ages were determined for ignimbrites; 20.4 0.2 Ma (the youngest age obtained so far in this area) and 29.2 0.5 Ma. Density measurements, as a proxy for welding, proved to be extremely useful to estimate the emplacement temperature and the origin of the magnetizations carried by the ignimbrites. After alternating field and thermal demagnetizations, the mean palaeomagnetic pole (Lat = 66.8 ; Long = 180.5 Kappa = 142; A95 = 6.3 ), calculated for the period 28-31 Ma, is in close agreement with our only Miocene determination. Comparison with the North America Synthetic Apparent Polar Path indicates a net counter-clockwise vertical axis rotation of about 10 4 compared to stable North America, which occurred likely during the last extensional episode in the Late Miocene (ca. 12-9 Ma). Palaeointensity estimates, obtained with the Thellier-Coe method, are mainly questionable and should not be used for global interpretation. Therefore, these ignimbrites are not a viable material for reliable palaeointensity determinations. " The Authors 2013. Published by Oxford University Press on behalf of The Royal Astronomical Society.",,,,,,"10.1093/gji/ggt079",,,"http://hdl.handle.net/20.500.12104/43464","http://www.scopus.com/inward/record.url?eid=2-s2.0-84877932531&partnerID=40&md5=90a683da71065dc127326c40c4887b5a",,,,,,"3",,"Geophysical Journal International",,"1250|
WOS",,,,,,"Palaeointensity; Palaeomagnetism applied to tectonics; Rock and mineral magnetism",,,,,,"Palaeomagnetism of the upper volcanic supergroup, southern part of the sierra madre occidental,mexico",,"Article" "44149","123456789/35008",,"Alanis, A.Y., CUCEI, Universidad de Guadalajara, Apartado Postal 51-71, Col. Las Aguilas, 45079 Zapopan, JAL, Mexico; Lastire, E.A., CINVESTAV, Unidad Guadalajara, Apartado Postal 31-438, Plaza La Luna, 45091 Guadalajara, JAL, Mexico; Arana-Daniel, N., CUCEI, Universidad de Guadalajara, Apartado Postal 51-71, Col. Las Aguilas, 45079 Zapopan, JAL, Mexico; Lopez-Franco, C., CUCEI, Universidad de Guadalajara, Apartado Postal 51-71, Col. Las Aguilas, 45079 Zapopan, JAL, Mexico",,"Alanis, A.Y.
Lopez-Franco, C.",,"2014",,"This paper presented an inverse optimal neural controller with speed gradient (SG) for discrete-time unknown nonlinear systems in the presence of external disturbances and parameter uncertainties, for a power electric system with different types of faults in the transmission lines including load variations. It is based on a discrete-time recurrent high order neural network (RHONN) trained with an extended Kalman filter (EKF) based algorithm. It is well known that electric power grids are considered as complex systems due to their interconections and number of state variables; then, in this paper, a reduced neural model for synchronous machine is proposed for the stabilization of nine bus system in the presence of a fault in three different cases in the lines of transmission. " 2014 Alma Y. Alanis et al.
|Appears in Collections:||Producción científica UdeG|
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