Fuzzy Sets
Mostrando 1-12 de 112 artigos, teses e dissertações.
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1. Fuzzy Boundary for Beams Vibrations in Vehicles
ABSTRACT This work aims to study the transversal motion of a car’s chassis, modeled by a beam and supported at its ends by two sets of spring-damper elements. A finite differences method is utilized along with Robin boundary conditions to solve the mathematical modeling. The constants of the boundary conditions are modeled by a fuzzy parameter obtained thr
Trends in Computational and Applied Mathematics. Publicado em: 2022
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2. Índice de Motivação Multidimensional e Desempenho Escolar no Brasil
Resumo Este trabalho pretende criar um Índice de Motivação Multidimensional (IMM) a partir dos dados do PISA 2015, verificar o efeito deste sobre o desempenho escolar e identificar qual das dimensões possui maior impacto na redução do diferencial de notas entre os alunos com melhores e piores condições socioeconômicas. A partir das metodologias de F
Rev. Bras. Econ.. Publicado em: 2020-09
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3. QoS and QoE Aware Routing Protocol for Flying Ad-Hoc Surveillance Networks Using Fuzzy Inference Systems
Abstract The Flying Ad-hoc Network (FANET) networks have often operated in regions that are difficult to reach and have no fixed infrastructure. The use of devices such as Unmanned Aerial Vehicles (UAV) enable aerial networks to be created that are extremely fast, although there are no specific routing protocols for this type of network that can make communi
J. Microw. Optoelectron. Electromagn. Appl.. Publicado em: 2020-03
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4. On BL-Algebras and its Interval Counterpart
RESUMO Lógica Fuzzy Intervalar e Conjuntos Fuzzy valorados em intervalos têm sido amplamente investigado. Algumas Lógicas Fuzzy foram algebricamente modeladas por Peter Hájek como BL-álgebras. Qual é a contrapartida algébrica para o caso intervalar? Sabe-se da literatura que existe uma incompatibilidade entre algumas estruturas algébricas e sua contr
TEMA (São Carlos). Publicado em: 16/09/2019
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5. FUZZY MODELING OF THE EFFECTS OF IRRIGATION AND WATER SALINITY IN HARVEST POINT OF TOMATO CROP. PART I: DESCRIPTION OF THE METHOD
ABSTRACT It was used statistical techniques for the evaluation of agricultural experiments, but there are mathematical theories that allow finer adjustments, highlighting among them, the fuzzy logic. The objective of the study was characterizing a method of fuzzy modeling from an agronomic experiment. For this study it was used data from an experiment conduc
Eng. Agríc.. Publicado em: 19/06/2019
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6. PERTINENCE CURVES IN FUZZY MODELING OF THE PRODUCTIVE RESPONSES OF BROILERS
ABSTRACT The selection of the type of fuzzy systems pertinence curve allows a better representation of the mathematical model and a smaller simulation error. We aimed to study the effect of pertinence curves in fuzzy modeling of broiler performance, created in different production systems. For the development and testing of fuzzy models, three commercial avi
Eng. Agríc.. Publicado em: 19/06/2019
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7. Mensuração da Pobreza Multidimensional Rural nas Mesorregiões Norte e Jequitinhonha de Minas Gerais
Resumo: O objetivo deste estudo é investigar e mensurar a intensidade da pobreza rural multidimensional por meio dos conjuntos Fuzzy, tendo como recorte geográfico as mesorregiões norte e Jequitinhonha do estado de Minas Gerais e seus agricultores familiares como público-alvo. A metodologia fundamenta-se na construção do Índice Fuzzy de Pobreza Rural
Rev. Econ. Sociol. Rural. Publicado em: 06/05/2019
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8. Adaptive Fuzzy Sliding-Mode Control of Wheel Slide Protection Device for ER24PC Locomotive
Abstract Wheel Slide Protection Devices (WSPD) are employed in railway vehicles to maximize the average of the possible frictional braking force, which is a nonlinear function of the slip ratio of the wheel sets. In this paper, to control the WSPD, a low-order model is presented and un-modeled dynamics are considered as uncertainties. Due to the nonlinear dy
Lat. Am. j. solids struct.. Publicado em: 2017
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9. Fuzzy Classification in the Determination of Input Application Zones
ABSTRACT Correctly interpreting soil fertility and its spatial distribution within an area helps to lessen losses and environmental effects associated with agriculture, to optimize fertilization and liming practices. This study is aimed at using concepts and methods from spatial and temporal analyses to soil fertility and to develop a fuzzy classification me
Rev. Bras. Ciênc. Solo. Publicado em: 28/07/2016
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10. Automatic segmentation and classification of blood components in microscopic images using a fuzzy approach
INTRODUCTION: Automatic detection of blood components is an important topic in the field of hematology. Segmentation is an important step because it allows components to be grouped into common areas and processed separately. This paper proposes a method for the automatic segmentation and classification of blood components in microscopic images using a genera
Rev. Bras. Eng. Bioméd.. Publicado em: 2014-12
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11. Evolving granular systems = : Sistemas granulares evolutivos / Sistemas granulares evolutivos
In recent years there has been increasing interest in computational modeling approaches to deal with real-world data streams. Methods and algorithms have been proposed to uncover meaningful knowledge from very large (often unbounded) data sets in principle with no apparent value. This thesis introduces a framework for evolving granular modeling of uncertain
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 19/07/2012
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12. Algumas contribuições na teoria de aproximação e otimização com variáveis fuzzy / Some contributions on theory of approximation and optimization with fuzzy variables
É apresentada uma nova formalização do conceito de número fuzzy poligonal junto com uma extensão do conceito para dimensão n. Esta abordagem unificada permite obter generalizações e versões simplificadas de resultados relevantes sobre números fuzzy poligonais e sobre aproximação de quantidades fuzzy n-dimensionais. Consideramos o problema da melh
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 12/04/2012