Computer Simulations
Mostrando 37-48 de 513 artigos, teses e dissertações.
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37. Estudo paramétrico do processo de injeção de solventes em poços horizontais para reservatórios de óleos pesados
Existem no mundo diversos tipos de óleo que apresentam uma diversidade de valores de densidade e viscosidade, essas são características para identificar se um óleo é leve, pesado ou até mesmo ultrapesado. A ocorrência de óleo pesado vem aumentando sensivelmente e apontando uma necessidade de maiores investimentos na exploração de jazidas e conseque
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 02/09/2011
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38. Iluminação natural em setores de produção de edifícios industriais : estudos de caso na região metropolitana de Campinas / Daylighting in manufacturing sectors of industrial buildings : case studies in the metropolitan region of Campinas
Although daylighting is a renewable resource, clean and costless, support to energy efficiency of a built environment and promoter of wellness state and health, it is not yet used in an efficient way in industrial building design, probably because architects and its clients ignore its principles, resources and possibilities. On the other hand, one notes an i
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 26/08/2011
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39. Modelo de simulação operacional do manuseio de matérias-primas de uma usina siderúrgica integrada
The main goal of this dissertation is to design and implementation of an Operational Simulation Model (OSM) of the handling of raw material in an Integrated Steelmaking Plant, considering operations of receiving, unloading, stocking, handling and supplying the different raw materials related to the production process with an operational perspective. The aim
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 15/08/2011
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40. Propriedades optoeletrônicas de interfaces híbridas metal/semicondutor orgânico preparadas por deposição assistida por feixe de íons (IBAD) / Optoelectronic properties of interfaces hybrid metal / organic semiconductor prepared by ion beam assisted deposition (IBAD)
In this work, optoelectronic properties from organic light emitting devices (OLEDs), based on conjugated polymers with metallic cathode, which were deposited by ion beam assisted deposition technique (IBAD) were studied. The main objective of this work is to produce a hybrid non abrupt metal/polymer interface and to study its effects on electron injection. T
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 21/07/2011
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41. Phylogenetic analysis and systematic revision of the genus Anchylohynchus Schoenherr, 1836 (Curculionidae: Derelomini), using discrete and continuous morphological characters / Análise filogenética e revisão sistemática do gênero Anchylorhynchus Schoenherr, 1836 (Curculionidae: Derelomini), com o uso de caracteres morfológicos contínuos e discretos
Recently, phylogenetic analysis based on continuous characters was made accessible. This increases the pool of characters available for morphology-based phylogenetic analyses, but there is still no consensus on how this kind of characters should be coded and analyzed. In the present study, I assessed the use of continuous characters in phylogenies from two d
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 07/07/2011
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42. Métodos de redução do arrasto e seus impactos sobre a estabilidade veicular / Methods of drag reduction and the impacts on the vehicle aerodynamics stability
The growing environmental concern and the necessity to create more efficient products have motivated researchers to conduct studies about the aerodynamic vehicle. These two aspects are the main reasons which are promoting a great demand for knowledge in this theme. This science may be considered relatively new and still lacks more databases. Understand how a
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 02/06/2011
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43. Avaliação das guias condilar e incisal em função da curva de compensação e da altura das cúspides - Releitura das Leis de Articulação de Hanau / Evaluation of condylar guidance and incisal guidance according to the compensating curve and cusp heights. A review of Hanaus laws of articulation
The objective of this in vitro study was to evaluate the variation of the saggital guidances (condylar guidance and incisal guidance) according to plane of orientation (prominence and inclination) and cusp heights during mandibular protrusive movements. The relationship between afore mentioned factors were assessed through both analogical and digital methods
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 19/04/2011
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44. Reconstrução acústica das salas de cinema projetadas pelo arquiteto Rino Levi / Acoustic Reconstruction of the movie theatres designed by the architect Rino Levi
A historical virtual acoustical reconstruction was developed in five movie theaters designed by the architect Rino Levi from 1936 to 1941, in the cities of São Paulo and Recife, by means of computer simulations. Such approach was chosen because these movie theatres have been demised or are now used with different purposes. Rino Levi is recognized as one of
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 12/04/2011
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45. Virtual boundary method applied to a problem of computational aerolastic analysis / Método da fronteira virtual aplicado em um problema de análise aeroelástica computacional
The behavior study of a profile of a typical aerolastic section, with Reynolds in range of micro aerial vehicle, is the main focus of this work, taking as objective the estimation of parameters of flutter phenomenon. The research analyzes of the flow of a incompressible fluid on a body (cylinder and airfoil profile) at steady state and oscillating with const
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 18/02/2011
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46. MÉTODOS PARA CORREÇÃO DAS DISTORÇÕES DA FORMA DE ONDA SECUNDÁRIA CAUSADAS PELA SATURAÇÃO DE TRANSFORMADORES DE CORRENTE PARA SERVIÇO DE PROTEÇÃO / METHODS FOR CORRECTION OF SECONDARY WAVEFORM DISTORTIONS CAUSED BY SATURATION OF CURRENT TRANSFORMERS FOR PROTECTIVE RELAYING PURPOSES
This work aims to evaluate the performance of some methods used to detect and correct the distorted portions of the secondary current signal waveform, which occur due to the core saturation of current transformers. Such methods are presented didactically divided among techniques existing in the specialized literature and new methodologies proposed. Involving
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 18/02/2011
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47. Structure-borne transmissibility evaluation through modeling and analysis of aircraft vibration dampers
Abstract In the aircraft industry a great practical relevance is given to the extensive use of vibration dampers between fuselage and interior panels. The proper representation of these isolators in computer models is of vital importance for the accurate evaluation of the vibration transmission paths for interior noise prediction. In general, simplified mode
J. Aerosp. Technol. Manag.. Publicado em: 2011-08
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48. Measurements in an Outdoor Facility and Numerical Simulation of the Radar Cross Section of Targets at 10 GHz
Abstract This paper presents preliminary data from an ongoing study on the radar cross section (RCS) of targets with simple and complex surface geometries (a flat square plate, a 90° dihedral corner reflector and a retired air-to-air missile). Measurements and computer simulations of these metallic targets were carried out at 10 GHz and also when the surfac
J. Aerosp. Technol. Manag.. Publicado em: 2011-04