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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 ...
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 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 ...
Characterization of the morphology and thermal properties of Zein Prolamine nanostructures obtained by electrospinning
(Elsevier, 2008)
Zein is a "yellowish" colored maize storage prolamine that shows great interest in a number of industrial applications such as food, food coating and food packaging. Nanofibers generated by electrospinning from solution ...
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 ...
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 ...