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Fracture behaviour of poly[ethylene–(vinyl alcohol)]/organo-clay composites
(WileySociety of Chemical Industry, 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 ...
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 ...
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, ...
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 ...
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 ...
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 ...
Relaxed Stability and Performance LMI Conditions for Takagi-Sugeno Fuzzy Systems With Polynomial Constraints on Membership Function Shapes
(Institute of Electrical and Electronics Engineers, 2008)
Most linear matrix inequality (LMI) fuzzy control
results in literature are valid for any membership function, i.e.,
independent of the actual membership shape. Hence, they are conservative
(with respect to other nonlinear ...
Hybrid Playground: Integración de herramientas y estrategias de los videojuegos en los parques infantiles
(Universitat Oberta de Catalunya, 2008)
Basándonos en el concepto de ciudad híbrida (entendida como el resultado de la transformación de los actuales modelos de percepción y vivencia de la ciudad a partir del efecto de la integración de sistemas tecnológicos en ...
Extensions to “Stability Analysis of Fuzzy Control Systems Subject to Uncertain Grades of Membership”
(Institute of Electrical and Electronics Engineer (New York), 2008)
In the December 2005 issue of this journal, Lam and Leung
proposed stability results for fuzzy control systems where the membership
functions in the controller were not the same as those from the process
one, but some ...