Time Machines
Mostrando 37-48 de 152 artigos, teses e dissertações.
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37. Consumo simbÃlico no Orkut: associaÃÃo Ãs marcas de moda no ambiente virtual
When we talk about todayâs actual context of society, we refer to the value of communication, in other words, information. The relations of the contemporary man with new technologies, new media and the proliferation of the means of communication edify the changes in culture, exploring a definition of a new mediatic era , a cyber culture. In this new conjunc
Publicado em: 2009
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38. A memória de futuro analisada pela linguagem cinematográfica: diálogos entre a teoria do cinema e Mikhail Bakhtin / The memory of future analyzed by filmic language: dialogue between Cinema Theory and Mikhail Bakhtin
The present study aims to analyze the representations of future in four science fiction movies launched at random during the past thirty years. Blade Runner,by Ridley Scott, Artificial Intelligence, by Steven Spilberg, Idiocracy, by Mike Judge and Children of Men by Alfonso Cuarón, compose our selected corpus for discussion and dialogue. For that purpose, w
Publicado em: 2009
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39. A computer simulation model for scheduling operations in assembly shop systems. / Proposta de um modelo de simulação computacional para a programação de operações em sistemas assembly shop.
This dissertation studies the problem of scheduling operations in manufacturing job shop environments where items with bill of materials are made of many fabricated and assembled components. Such systems are known as assembly shops. The general job shop scheduling problem, which no restrictions exist neither for the number of operations to be scheduled nor f
Publicado em: 2009
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40. CONTRIBUTION TO THE CONTROL OF ELECTRODYNAMIC VIBRATION MACHINES / CONTRIBUIÇÃO AO CONTROLE DE MÁQUINAS DE VIBRAÇÃO ELETRODINÂMICAS
This work presents contributions to the sinusoidal acceleration control of electrodynamic shakers applied in vibration testing. Considering the importance of sine tests to identify critical frequencies of operation and to determine mechanical weakness in the specified performance of specimens, vibration controllers are designed to reproduce the amplitude and
Publicado em: 2009
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41. Avaliação de Objetos de Aprendizagem: cruzando caminhos e produzindo novos olhares
The purpose of this paper is to present the results of a research involving the assessment of the object of learning. For that use the object of learning What is this Galvanization thing?, carried out by the Chemistry team of RIVED, at a public University in the state of Minas Gerais. The investigation approach is qualitative, actually a case study, as this
Publicado em: 2009
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42. Estudo do desalinhamento das fibras nas propriedades mecânicas de compósitos estruturais de pás eólicas / Study of fiber misalignment effects on the mechanical properties of wind blades structural composites
This work presents the study of waviness influence on the mechanical properties of wind blades structural components fabricated by vacuum infusion. For this purpose, out-of-plane waviness, which is a common manufacturing defect, was induced on glass and carbon reinforced plastics (GRP and CRP) and compared with control laminates without waviness (wave-free c
Publicado em: 2009
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43. Estudo do desalinhamento das fibras nas propriedades mecânicas de compósitos estruturais de pás eólicas / Study of fiber misalignment effects on the mechanical properties of wind blades structural composites
This work presents the study of waviness influence on the mechanical properties of wind blades structural components fabricated by vacuum infusion. For this purpose, out-of-plane waviness, which is a common manufacturing defect, was induced on glass and carbon reinforced plastics (GRP and CRP) and compared with control laminates without waviness (wave-free c
Publicado em: 2009
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44. Services allocation in a metrology laboratory using genetic algorithms / Distribuição de serviços em laboratório de metrologia utilizando algoritmos genéticos
As simple as it might look, the problem of allocating a group of tasks to be executed with a limited number of available machines will always present a number of details and restrictions that in certain cases can result in a solution of great complexity. Some of the variables involved are: service priority, available raw materials, machinery or equipment cap
Publicado em: 2009
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45. A machine learning approach to automatic music genre classification
This paper presents a non-conventional approach for the automatic music genre classification problem. The proposed approach uses multiple feature vectors and a pattern recognition ensemble approach, according to space and time decomposition schemes. Despite being music genre classification a multi-class problem, we accomplish the task using a set of binary c
Journal of the Brazilian Computer Society. Publicado em: 2008-09
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46. INSPEÇÃO TÉCNICA DE PULVERIZADORES AGRÍCOLAS NO RIO GRANDE DO SUL / TECHNICAL INSPECTION OF AGRICULTURAL SPRAYERS IN RIO GRANDE DO SUL
The projects of inspection of agricultural sprayers projects are realized in several countries already at a long time. These projects looking to get informations and give orientations for operators that make applications with agricultural defensives with agricultural sprayers. Considering the importance that any application should be efficient and analyzing
Publicado em: 2008
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47. AvaliaÃÃes BiomecÃnicas, ErgonÃmicas e FisiolÃgicas em Operadores de MÃquinas AgrÃcolas / Diagnosis biomecÃnico, ergonÃmico and physiologic preliminary of operators of agricultural machinery
The agricultural work is considered one of the most stressful since it demands elevated efforts The operation of agricultural machinery formulates a petition of the worker long hours in the same position, executing repetitive movements This fact leads to the fatigue compromising the health of the operator The work of the operator of agricultural machinery is
Publicado em: 2008
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48. Identificação de espécies vegetais por meio da análise de textura foliar / Plant species recognition by leaf texture analysis
Biodiversity of species existing in the plant kingdom make the use of traditional models of taxonomy, a process of classification traditionally performed manually, a very complex and time-consuming task. Most of difficulties in that process result from the existence of few researches on plant classification using mathematical and computational methods. In th
Publicado em: 2008