Listar Departament: Enginyeria de Sistemes Industrials i Disseny por fecha de publicación
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Discussion on Useless Active and Reactive Powers Contained in the IEEE Standard 1459
IEEE (2011)This paper deals with the useless active powers and the reactive powers included in the unbalance power (SU1), and in the nonfundamental effective apparent power (SeN) defined in IEEE Standard 1459. Only the fundamental ... -
Similar model reference adaptive control with bounded control effort
John Wiley & Sons (2011)In this article, we propose an indirect similar model reference adaptive control scheme (SMRAC) in which the reference model is no longer constrained to be fixed but may be time varying in order to assure a bounded control ... -
Characterization and control of dimensionally similar systems
Elsevier (2011)When a model (i.e. experimental facility) and prototype (i.e. the real system) are dimensionally similar, then it is possible to extrapolate experimental results from model to prototype. In particular, in this article we ... -
Meaningful Resolution of the IEEE Std. 1459 unbalanced power
IEEE (2011)This letter present a new resolution of the IEEE Std. 1459 unbalanced power (SU1). The resolution is intended to achieve a better quantification of the power terms included in SU1 . The new definitions improve the ... -
Non-fundamental effective apparent power defined through an instantaneous power approach
Elsevier (2011)This paper proposes a new definition of non-fundamental effective apparent power based on an analysis of instantaneous power flows. This new instantaneous power approach for the calculation of the non-fundamental effective ... -
Maximal closed loop admissible set for linear systems with non-convex polyhedral constraints
Elsevier (2011)This paper deals with the computation of the maximal closed-loop admissible set for linear systems with non-convex polyhedral constraints. These constraints are modeled as the union of a finite number of convex polyhedra. ... -
Breakdown and evolution of the protective oxide scales of AISI 304 and AISI 316 stainless steels under high-temperature oxidation
Hindawi Publishing Corporation (2011)The failure of the protective oxide scales of AISI 304 and AISI 316 stainless steels has been studied and compared at 1,000°C in synthetic air. First, the isothermal thermogravimetric curves of both stainless steels were ... -
Benchmark para la Evaluación de Algoritmos de Auto-ajuste de Controladores PID
Comité Español de Automática (2011)En este artículo se propone una metodología para la evaluación de algoritmos de auto-ajuste de controladores PID. Para ello se definen índices cuantitativos que permiten medir el comportamiento de los algoritmos, tanto ... -
A simplified black-box model oriented to chilled water temperature control in a variable speed vapour compression system
Elsevier (2011-02)The aim of this work is to propose a black-box model to accurately predict the chilled water temperature dynamic response of a vapour compression chiller. The model is oriented to be of value in determining an adequate ... -
Statistical estimation of variation transmission model in a manufacturing process
Springer-Verlag (2011-02)This article describes a method for obtaining a variation transmission model in a multi-stage manufacturing process in situations in which the characteristic that defines the quality of the product is an independent variable ... -
Second order inverse response process identification from transient step response.
© 2010 ISA. Published by Elsevier (2011-04)Simple algorithms for identification of inverse response models from step response are difficult to obtain because analytically the solution of a system of coupled nonlinear equations is required. In this article we propose ... -
Influence of crystallinity on the fracture toughness of poly(lactic acid)/montmorillonite nanocomposites prepared by twin-screw extrusion.
© 2010 Wiley Periodicals (2011-04)The aim of this work was to study the effect of crystallinity degree on the thermal, mechanical, and fracture properties of poly(lactic acid)/organomodified montmorillonite (PLA/OMMT) nanocomposites. Samples with two ... -
Design of multi-station manufacturing processes by integrating the stream-of-variation model and shop-floor data
Elsevier (2011-04)Processdesign has been intensively studied to reduce dimensional variability of products produced in multi-stationmanufacturingprocesses (MMPs). Most of the existing studies focus on predicting variation propagation and ... -
Solución explícita al control predictivo de sistemas lineales sujetos a restricciones no convexas
(2011-07)Este trabajo propone una solución explícita para el control predictivo de sistemas lineales sujetos a restricciones poliédricas no convexas, modeladas como la unión de un número finito de poliedros. El algoritmo se basa ... -
A new approach to averaging level control
Elsevier (2011-09)In this paper, a new simple algorithm for averaging level control is presented. The proposed algorithm is based on the use of a static nonlinear controller to improve the input flow filtering by reducing the slope of the ... -
Processing of poly(lactic acid)/organomontmorillonite nanocomposites: microstructure, thermal stability and kinetics of the thermal decomposition
Elsevier (2011-12-15)The degradation during the melt processing of poly(lactic acid) (PLA) and its nanocomposites with different contents (0.5 and 2.5%) of an organomodified montmorillonite (OMMT) promoted physical and chemical changes in their ... -
Preparation of nanocrystalline TiO2 electrodes for flexible dye-sensitized solar cells: influence of mechanical compression
American Chemical Society (2012)Nanocrystalline TiO2 electrodes were prepared using binder-free TiO2 paste on conductive ITO-PEN substrates by the doctor-blade method at significantly low temperature (140 °C), and the electrodes were further processed ... -
State estimator for multisensor systems with irregular sampling and time-varying delays
Taylor & Francis (2012)This article addresses the state estimation in linear time-varying systems with several sensors with different availability, randomly sampled in time and whose measurements have a time-varying delay. The approach is based ... -
An experimental study of process variables in turning operations of Ti–6Al–4V and Cr–Co spherical prostheses
Springer Verlag (2012)Ti–6Al–4V and Cr–Co alloys are extensively used in manufacturing prostheses due to their biocompatibility, high strength-to-weight ratio and high resistance to corrosion and wear. However, machining operations involving ... -
Power management strategies and energy storage needs to increase the operability of photovoltaic plants
American Institute of Physics (2012)This paper analyzes the effect of introducing an energy storage (ES) system in an intermittent renewable energy power plant such as a photovoltaic (PV) installation. The aim of this integration is to achieve an improvement ...