Listar ESID_Articles por fecha de publicación
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A Triangulation Approach to Asymptotically Exact Conditions for Fuzzy Summations
Institute of Electrical and Electronics Engineers (IEEE) (2009)Many Takagi-Sugeno (T-S) fuzzy control-synthesis problems in the literature are expressed as the problem of finding decision variables in a double convex sum (fuzzy summation) of positive definite matrices. Matricespsila ... -
Fracture behaviour of poly[ethylene–(vinyl alcohol)]/organo-clay composites
Wiley (2009)BACKGROUND: Ethylene–(vinyl alcohol) (EVOH) copolymer/organo‐modified montmorillonite (OMMT) composites were investigated. Composites with two different percentages by weight of OMMT were prepared using a melt‐extrusion ... -
Sampled-data gain scheduling of continuous LTV plants
Elsevier (2009)This paper discusses the design of gain-scheduled sampled-data controllers for continuous-time polytopic linear parameter-varying systems. The scheduling variables are assumed to be available only at the sampling instants, ... -
Studying the degradation of polyhydroxybutyrate-co-valerate during processing with clay-based nanofillers
Wiley (2009)Polyhydroxybutyrate-co-valerate (PHBV) is attracting interest as a new material for packaging applications and nanoparticulate layered silicates are being increasingly explored as a way to improve PHBV film properties. In ... -
A review of machining monitoring systems based on artificial intelligence process models
Springer-Verlag (2009)Many machining monitoring systems based on artificial intelligence (AI) process models have been successfully developed in the past for optimising, predicting or controlling machining processes. In general, these monitoring ... -
Frequency-dependent approach to model validation for iterative identification and control schemes
Institution of Engineering and Technology (2009)Classical validation methods “accept” or “reject” a model as a valid representation of a plant for some intended use. However this binary result has several problems as firstly, models are neither good nor bad but have ... -
Diseño prospectivo y elementos de uso en parques urbanos a partir de la experiencia de las personas mayores
Resma (2009)Attention to the care and design of urban public spaces is a key factor when considering the quality of urban life. Parks and squares are spaces dedicated for everybody’s use and enjoyment, although some people, depending ... -
Reduciendo distancias entre el control borroso y el control no lineal: luces y sombras
Comité Español de Automática (2009)Aunque el control borroso nació como una metodología heurística, las formulaciones en desigualdades matriciales lineales del control borroso se han convertido en la herramienta más utilizada en dicho área desde los años ... -
H∞ observer design for a class of nonlinear discrete systems
Lavoisier (Hermes Science Publications) (2009)Necessary and sufficient conditions are presented under which a discrete-time autonomous system with outputs is locally diffeomorphic to an output-scaled linear observable system or an output-scaled nonlinear system in the ... -
Study of the dispersion of nanoclays in a LDPE matrix using microscopy and in-process ultrasonic monitoring
Elsevier (2009)LDPE/montmorillonite and LDPE/kaolinite compounds were prepared by twin-screw extrusion using two screw profiles. The microstructure of the samples was determined by a combination of techniques: wide angle X-ray scattering ... -
Optimization of deposition voltage of cataphoretic automotive primers assessed by EIS and AC/DC/AC
Elsevier (2009)The dependence of the anticorrosive properties of a cataphoretic paint with the applied deposition voltage was studied by the so-called EIS tests; an accelerated cyclic test used in the automotive industry; and a rapid ... -
Improved efficiency in sensitivity calculations for bioreactor models
Elsevier (2009)Sensitivity functions are a basic tool in the parametric identification of models. They can be used to obtain the gradient needed by optimization algorithms in the estimation of parameters and to calculate the Fisher ... -
Influence of femtolaser notch sharpening technique in the determination of essential work of fracture (EWF) parameters
Elsevier (2009-06)The fracture behaviour of a 0.5 mm thick ethylene-propylene block copolymer is analyzed using the essential work of fracture method, using DENT-type specimens. The influence of three experimental parameters in the technique ... -
The Essential Work of Fracture (EWF) method – Analyzing the Post-Yielding Fracture Mechanics of polymers
Elsevier (2009-12)The Post-Yielding Fracture Mechanics describe the fracture behaviour of pre-cracked films and thin sheets that show yielding phenomenon at the crack tip during fracture. The Essential Work of Fracture method (EWF) has been ... -
Polynomial Fuzzy Models for Nonlinear Control: A Taylor Series Approach
Institute of Electrical and Electronics Engineers (IEEE) (2009-12)Classical Takagi-Sugeno (T-S) fuzzy models are formed by convex combinations of linear consequent local models. Such fuzzy models can be obtained from nonlinear first-principle equations by the well-known sector-nonlinearity ... -
Guaranteed cost control analysis and iterative design for constrained Takagi-Sugeno systems
Elsevier (2010)This paper presents a novel control design technique in order to obtain a guaranteed cost fuzzy controller subject to constraints on the input channel. This guaranteed cost control law is obtained via multi-parametric ... -
Effect of the recycling and annealing on the mechanical and fracture properties of poly(lactic acid)
Springer US (2010)The aim of this work is to evaluate the use of Poly(lactic acid) (PLA) industrial waste as a source of raw material for certain applications, as well as to understand the effects of the annealing on the fracture behavior ... -
A review of artificial intelligent approaches applied to part accuracy prediction
Inderscience (2010)Nowadays, despite the large volume of worldwide academic research on various aspects of metal cutting the control of workpiece precision still relies on machine-tool operator's experience and trial and error runs. In order ... -
Cutting parameters optimisation in milling: expert machinist knowledge versus soft computing method
Inderscience (2010)In traditional machining operations, cutting parameters are usually selected prior to machining according to machining handbooks and user’s experience. However, this method tends to be conservative and sub-optimal since ... -
Influence of processing on the ethylene-vinyl alcohol (EVOH) properties: Application of the successive self-nucleation and annealing (SSA) technique
Budapest University of Technology (2010)Films of EVOH copolymers, processed three times by twin-screw extrusion were prepared using a cast-film line. The variation on the melt flow rate (MFR) and rheological behaviour of the films were determined, as well as the ...