Search
Now showing items 641-650 of 4794
A Real-Time Sliding Mode Control for a Wind Energy System Based on a Doubly Fed Induction Generator
(MDPI, 2014-10)
In this paper, a real time sliding mode control scheme for a variable speed wind turbine that incorporates a doubly feed induction generator is described. In this design, the so-called vector control theory is applied, in ...
Coincidence point theorems in quasi-metric spaces without assuming the mixed monotone property and consequences in G-metric spaces
(Springer International Publishing, 2014-09)
In this paper, we present some coincidence point theorems in the setting of quasi-metric spaces that can be applied to operators which not necessarily have the mixed monotone property. As a consequence, we particularize ...
Fixed and Best Proximity Points of Cyclic Jointly Accretive and Contractive Self-Mappings
(Hindawi Publishing Corporation, 2012)
p(>= 2)-cyclic and contractive self-mappings on a set of subsets of a metric space which are simultaneously accretive on the whole metric space are investigated. The joint fulfilment of the p-cyclic contractiveness and ...
Some Results on Fixed and Best Proximity Points of Multivalued
(Hindawi Publishing Corporation, 2013)
This paper is devoted to investigate the fixed points and best proximity points of multivalued cyclic self-mappings on a set of subsets of complete metric spaces endowed with a partial order under a generalized contractive ...
Fixed Points of Closed and Compact Composite Sequences of Operators and Projectors in a Class of Banach Spaces
(Hindawi Publishing Corporation, 2013)
Some results on fixed points related to the contractive compositions of bounded operators in a class of complete metric spaces which can be also considered as Banach's spaces are discussed through the paper. The class of ...
Stability of Switched Feedback Time-Varying Dynamic Systems Based on the Properties of the Gap Metric for Operators
(Hindawi Publishing Corporation, 2012)
The stabilization of dynamic switched control systems is focused on and based on an operator-based formulation. It is assumed that the controlled object and the controller are described by sequences of closed operator pairs ...
About the Stabilization of a Nonlinear Perturbed Difference Equation
(Hindawi Publishing Corporation, 2012)
This paper investigates the local asymptotic stabilization of a very general class of instable autonomous nonlinear difference equations which are subject to perturbed dynamics which can have a different order than that ...
La historiografía forestal sobre época moderna en el panorama internacional, español y vasco: una revisión bibliográfica
(Sociedad de Estudios Vascos, Eusko Ikaskuntza, 2011)
[ES] Este artículo pretende dar una visión general de la evolución de la Historia forestal en el panorama historiográfico internacional, en un momento en el que la Historia Forestal, Ecológica y Ambiental
están de moda, ...
Alejandra Pizarnik: "Si no me escribo soy una ausencia"
(Universidad de Varsovia, Instituto de Estudios Ibéricos e Iberoamericanos, 2011)
[ES] Este trabajo propone una lectura de los seis primeros cuadernos del diario que
Alejandra Pizarnik escribió a lo largo de toda su vida, desde los 18 años y hasta que murió a la edad de 36. El análisis de estos cuadernos, ...
Superstición y brujería en el Duranguesado a fines de la Edad Media: ¿Amboto 1507?
(Centro de Historia del Crimen de Durango, 2011)
[ES] En este investigación se analiza el rico mundo de las supersticiones, de la magia, de la hechicería y de la brujería
vasca medieval, centrándose especialmente en el foco de brujería que afectó a la comarca del ...