New approach of induction machine drive using an adaptive digital PID controller with gain planning based on artificial neural networks

The present work introduces a new strategy of induction machines speed adjustment using an adaptive PID (Proportional Integral Derivative) digital controller with gain planning based on the artificial neural networks. This digital controller uses an auxiliary variable to determine the ideal induction machine operating conditions and to establish the closed loop gain of the system. The auxiliary variable value can be estimated from the information stored in a general-purpose artificial neural network based on CMAC (Cerebellar Model Articulation Controller).

Estatuto da criança e do adolescente: a proteção integral e suas implicações político-educacionais

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Processos de visualização e representação de conceitos de cálculo diferencial e integral com um software tridimencional

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Modelagem matemática no processo ensino-aprendizagem do cálculo diferencial e integral para o ensino médio

Pós-graduação em Educação Matemática - IGCE

A Pedagogia da alternância na visão dos egressos da EFA de Porto Nacional - TO: a possibilidade de uma formação integral

Neste estudo analisamos como a Formação Integral dos Jovens, um dos pilares fins da rede de Centros Familiares de Formação por Alternância (CEFFA), vem se materializando na Escola Família Agrícola (EFA) de Porto Nacional e como se dá a participação de seus egressos nos diversos aspectos da vida social. A pesquisa baseia-se na abordagem qualitativa com perspectiva dialética, que aqui assume a forma de estudo de caso. Combinamos o uso da pesquisa bibliográfica com outros procedimentos metodológicos como a pesquisa documental, por meio da qual analisamos, entre outros, o Projeto Político e Pedagógico da EFA, relatórios, Leis da Educação e Pareceres. Realizamos, ainda, entrevistas do tipo semiestruturada com 14 egressos escolhidos, após a aplicação de um questionário respondido por 32 dos 103 estudantes que concluíram o Ensino Médio e o Ensino Profissionalizante na EFA, até o ano de 2006. Nos principais documentos da EFA de Porto Nacional, fica expressa a suposição de que a Escola pode contribuir para a Formação Integral de seus jovens, formando-os para a cidadania e construindo uma cultura de participação. A Educação do Campo, na história do Brasil, é um exemplo bem claro do descaso e da negação desse direito por parte do Estado brasileiro, no que diz respeito às políticas públicas para atender os povos do campo. É nesse vácuo da negação do direito, não só pelo próprio Estado, mas também, e principalmente, pelas classes dominantes de nosso país que nasce, no seio da sociedade civil de Porto Nacional, a Escola Família Agrícola, atendendo os jovens do campo daquela região. A EFA foi criada pela COMSAÚDE, uma instituição não-governamental, a partir de debates com as comunidades do campo de Porto Nacional e os Movimentos Sociais locais. Um dos objetivos da criação da Escola era o de atender os sujeitos do campo com uma Educação de qualidade e voltada para as especifidades dessa população, dando ênfase à Agricultura Familiar. A pesquisa concluiu que a Escola avança na medida em que trabalha o conhecimento a partir da leitura da realidade, à luz de outros conhecimentos e possibilidades no seu meio e que ela vem contribuindo para a Formação Integral e cidadã de seus jovens.

Generalized integral transform solution for hydrodynamically developing non-Newtonian flows in circular tubes

ABSTRACT: The Generalized Integral Transform Technique (GITT) is applied to the solution of the momentum equations in a hydrodynamically developing laminar flow of a non-Newtonian power-law fluid inside a circular duct. A primitive variables formulation is adopted in order to avoid the singularity of the auxiliary eigenvalue problem in terms of Bessel functions at the centerline of the duct when the GITT approach is applied. Results for the velocity field and friction factor-Reynolds number product are computed for different power-law indices, which are tabulated and graphically presented as functions of the dimensionless coordinates. Critical comparisons with previous results in the literature are also performed, in order to validate the numerical codes developed in the present work and to demonstrate the consistency of the final results.

RNS derivation of N-point disk amplitudes from the revisited S-matrix approach

Recently, in [7] we proposed a revisited S-matrix approach to efficiently find the bosonic terms of the open superstring low energy effective lagrangian (OSLEEL). This approach allows to compute the alpha'(N) terms of the OSLEEL using open superstring n-point amplitudes in which n is considerably lower than (N + 2) (which is the order of the required amplitude to obtain those alpha'(N) terms by means of the conventional S-matrix approach). In this work we use our revisited S-matrix approach to examine the structure of the scattering amplitudes, arriving at a closed form for them. This is a RNS derivation of the formula first found by Mafra, Schlotterer and Stieberger [21], using the pure spinor formalism. We have succeeded doing this for the 5, 6 and 7-point amplitudes. In order to achieve these results we have done a careful analysis of the kinematical structure of the amplitudes, finding as a by-product a purely kinematical derivation of the BCJ relations (for N = 4, 5, 6 and 7). Also, following the spirit of the revisited S-matrix approach, we have found the alpha' expansions for these amplitudes up to alpha'(6) order in some cases, by only using the well known open superstring 4-point amplitude, cyclic symmetry and tree level unitarity: we have not needed to compute any numerical series or any integral involving polylogarithms, at any moment. (C) 2014 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/3.0/).

Planeamiento y análisis integral del paisaje de la cuenca hidrográfica del río buenavista provincia de Manabí-Ecuador para la implementación de políticas de incentivos a la restauración de ecosistemas con fines de conservación (programa socio Bosque-Ecuador)

Pós-graduação em Geografia - FCT

Cálculo diferencial e integral no movimento dos planetas

Pós-graduação em Matemática em Rede Nacional - IBILCE

Influence of alternative drying aids on water sorption of spray dried mango mix powders: a thermodynamic approach

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Multidisciplinary approach in the teaching of dental sculpture and anatomy

The purpose of the Dental Sculpture and Anatomy discipline is to introduce undergraduate students to the study of the anatomic and morphological characteristics of permanent and primary human dentition, through classes, books and cognitive and psychomotor activities. This discipline supports the teaching of specific knowledge necessary for a more extensive education, involving interdisciplinarity as a means of knowledge exchange among several areas of dentistry, to achieve comprehensive professional education. Students must recognize the dental morphology from samples of preserved teeth, and reproduce the morphology through three-dimensional models made of stone or wax blocks. In this article, the authors describe the process for producing teeth collars and macro dental models made of stone, their importance and benefits of utilization. The purpose of the study was to encourage the teaching of Dental Sculpture and Anatomy toundergraduate students of the Bauru School of Dentistry, University of Sao Paulo, through activities that would associate theory, practice and the development of manual skills.

Introdução a noções de cálculo diferencial e integral no ensino médio no contexto das TIC: implicações para prática do professor que ensina matemática

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Resumo escolar no ensino médio técnico integrado integral: uma experiência de leitura e escrita em uma abordagem sócio-retórica

Pós-graduação em Estudos Linguísticos - IBILCE

Levy stable distributions via associated integral transform

We present a method of generation of exact and explicit forms of one-sided, heavy-tailed Levy stable probability distributions g(alpha)(x), 0 <= x < infinity, 0 < alpha < 1. We demonstrate that the knowledge of one such a distribution g a ( x) suffices to obtain exactly g(alpha)p ( x), p = 2, 3, .... Similarly, from known g(alpha)(x) and g(beta)(x), 0 < alpha, beta < 1, we obtain g(alpha beta)( x). The method is based on the construction of the integral operator, called Levy transform, which implements the above operations. For a rational, alpha = l/k with l < k, we reproduce in this manner many of the recently obtained exact results for g(l/k)(x). This approach can be also recast as an application of the Efros theorem for generalized Laplace convolutions. It relies solely on efficient definite integration. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4709443]

Nurses and care delivery to elderly women: a social phenomenological approach

OBJECTIVE: To understand how nurses see care delivery to elderly women. METHODS: In this phenomenological study, ten nurses working at Primary Health Care Units were interviewed between September 2010 and January 2011. RESULTS: In care delivery, nurses consider the elderly women's knowledge background and biographical situation, and also value the family's participation as a care mediator. These professionals have the acuity to capture these women's specific demands, but face difficulties to deliver care to these clients. Nurses expect to deliver qualified care to these women. CONCLUSION: The theoretical and methodological approach of social phenomenology permitted revealing that the nurse designs qualified care to elderly women, considering the possibilities in the context. This includes the participation of different social actors and health sectors, assuming collective efforts in action strategies and professional training, in line with the particularities and care needs of elderly women nurses identify.