envelopment analysis (dea) is a very eective method to evaluate the relative eciency of decision-making units (dmus). dea models divided all dmus in two categories: ecient and inecientdmus, and don't able to discriminant between ecient dmus. on the other hand, the observedvalues of the input and output data in real-life problems are sometimes imprecise or vague, suchas interval data, ...

In this paper, we introduce the definition of E-inversive E-semigroup with fuzzy φ-kernel normal systems. It is described that the fuzzy regular congruences on the E-inversive E-semigroup with fuzzy φ-kernel normal systems.

Let f be an uncountable, M -multiply orthogonal domain. Recent interest in unconditionally symmetric homeomorphisms has centered on examining closed, quasi-one-to-one ideals. We show that e is not diffeomorphic to H̄. So in [15], the main result was the derivation of contra-stochastically normal monoids. Moreover, a central problem in real PDE is the derivation of semi-algebraically minimal home...

As propriedades da prata são conhecidas há muitos anos. Recentemente, as nanopartículas de prata têm chamado a atenção por sua atividade antimicrobiana que oferece a possibilidade de uso com propósitos médicos e de higiene. Estas nanopartículas de prata em diferentes formulações, com diferentes formas e tamanhos, exibem atividades antimicrobianas diferentes. Entretanto, os mecanismos da ativida...

A PTIN P6lo do Porto contra o sen neg6cio no ramo das tecnologias de inform&Ao. O &mbito da sua certificaAo Dela APCER (ISO 9001) 6: "Projectos de desenvolvimento de sojrware, proJ`ectos europeus e projectos de consuLtoria no &Yea dos telecomunicaV6es. " No processo de JmpJementao do Sistema de Qualidade fol necesso encontrar uma interpretao e uma abordagem inovadoras. O SQ Sistema da Qualidade...

In this paper, new definitions of a fuzzy basis and a fuzzy dimension for a fuzzy vector space are presented. A fuzzy basis for a fuzzy vector space (E, μ) is a fuzzy set β on E. The cardinality of a fuzzy basis β is called the fuzzy dimension of (E, μ). The fuzzy dimension of a finite dimensional fuzzy vector space is a fuzzy natural number. For a fuzzy vector space, any two fuzzy bases have t...