1000 resultados para Visão computacional
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Pós-graduação em Química - IQ
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Pós-graduação em Educação - FCT
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Pós-graduação em Educação Escolar - FCLAR
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This work aims to examine, the behavior of a combustion chamber in pilot scale, coupled to a regenerative burner. The objective is to obtain a computational domain capable of supporting a simulation of conventional combustion and flameless combustion regimes. The objective is to obtain independence of mesh, analysis of the velocity fields of the fluid within the chamber, temperature and concentration profiles of the species emitted during the combustion process
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Optics consists in the study of interaction of light with physical systems. The human vision is a product of the interaction of light with the eye (a very peculiar physical system). Here we present a basic study of the relationship between the optics and human vision, including: - The fundaments and physicals properties who characterize the light and the colors and the characteristics of the incidence mediums. - The basics laws of geometrical optics, based in the rectilinear propagation of light in the form of a light ray, in the independence of light rays and in the principle of reversibility of the light beams. This principle is present in the process of image formations in lenses and mirrors and applied in the study of image formation in the human eye. - The refraction and reflection laws and types of lenses, who permits the construction of optics devices for the study of physical universe, and the appliances to correct vision diseases. - Presents the human vision process as consisting in the reception of light (electromagnetic radiation in the zone of wavelength visible to us) through the eye and the sending of information obtained by the retina to the brain where it is interpreted. The vision involves a biophysical relation between the light and the biological structure of the eye who is constituted by cornea, iris, crystalline and retina. Analyzes is made of how some parts of the eye performs a function in the reception and sending of information of the images to the brain
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Along of the Brazilian territory is to encourage a lot of self-management communities, seeking a new way of social organization through of cultural practices and economic antagonistic logic of the capitalist system. These communities create a lifestyle which we are not used in the context of modern life, they are focused to a greater preservation of nature, to an economy based on spiritualization and cultural exchange. The peculiarity of these communities is to offer the same structure as a modern city, electricity, clothing, basic sanitation, food among others, which the state already offers, but with alternative ways.For a more specific study was selected community-Porangaba Future Vision, São Paulo. Through this case of study, it is thought to enable a better understanding of how it is possible within a country emerge a community that creates its own structure encompassed by cultural practices and economic characteristics and finally understanding what are the effects on the geographic area
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This paper objective is to analyze the Theory of Increasing and Diminishing Returns from the perspective of the Symposium of 1930, written by Robertson, Sraffa and Shove. Besides these authors, are also treated other texts Robetson and Sraffa, and texts by Pigou and Robbins, expressing the similarity and difference of thought of each author with respect to the Laws
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In this work concepts of flammability limits of anhydrous and hydrated ethanol to pressures below atmospheric, using the Dalton model for gaseous mixtures. Theoretical and experimental methods for determining the boundaries and the influence of parameters such as concentration, temperature and pressure were introduced. Analyzes from partial pressures of fuel vapor and correlations with temperature and total pressure were made. Finally presents an overview of aviation fuels, their requisites and trends in the use of biofuels in commercial aviation industry
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Automatic video surveillance system has been a frequent topic of research due to the large number of promising applications. In this research, we developed a tracking and counting people system, as well as suspicious activities detector. The model tracks individual objects as they pass through the field of vision of the camera using vision algorithms to classify the activities of each person, and according to this features, detect dangerous situations. This dissertation includes a review of several techniques trying to develop a robust and low computacional costs system to be used in glass door barrier turnstiles avoiding fraud
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O presente trabalho trata de uma Avaliação Pós Ocupação (APO) e uma avaliação da percepção ambiental dos usuários do Lar Escola Santa Luzia para Cegos, localizado na cidade de Bauru-SP. De maneira geral, a percepção humana tende a valorizar e utilizar mais o sentido da visão, porém é de extrema importância que os demais sentidos sejam também explorados. Por não ter o sentido da visão o deficiente visual desenvolve mais os outros sentidos, aguçando-os, o que lhe permite vivenciar experiências únicas de diferentes sensações. A arquitetura, como forma de arte, deve buscar não apenas ser “vista”, mas sim experimentada, pelo tato, olfato, audição, sensações térmicas, entre outros fatores cognitivos. A pesquisa se constituiu do levantamento de dados sobre o funcionamento da entidade, dos aspectos técnicos, funcionais e da percepção que os usuários têm do ambiente, e a maneira que se relacionam e se comportam nele. A APO, através de visitas exploratórias, dados coletados e entrevistas com usuários, nos permite conhecer as necessidades e opiniões das pessoas que vivenciam o espaço diariamente. As avaliações de percepção nos levam ao conhecimento do mundo sensitivo dos deficientes visuais, de que maneira seus sentidos atuam para que se localizem e se movimentem em edifícios, ruas e na cidade em geral. Como resultado final uma proposta projetual foi desenvolvida a fim de criar um espaço onde os deficientes visuais possam realizar atividades de convivência, culturais e didáticas de maneira adequada
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Millennia ago, through the myths of greeks gods and demi-gods, comes a series of celebrations called Pan-Hellenic Games. Among these festivals, the most famous was certainly the Olympic Games - the Olympics. Forbidden by Rome in the third century AD, they are considered to worship the pagan gods, were rescued in 1894 by Pierre de Coubertin. Over 113 years and 29 Olympiads, the event took gigantic proportions and the right to host the Games has become one of the closest racing of the modern world. Catalyst for urban development, the Olympic Games were the subject of dream for the city of Sao Paulo in the 2000’s, and an internal dispute was fought with Rio de Janeiro to get the right to host the 2012 Games. A team of Paulo Mendes da Rocha and associates was responsible for designing the plan. Eliminated from contention, Sao Paulo forgot the Olympic dream, and in October 2009 the city of Rio was finally chosen to host the Olympics in 2016. This project aims to rescue the look of architectural and urban plan Sao Paulo 2012 and with a critical and poetic eye create a visual identity for a fictitious victory in the election of São Paulo in 2003. Not aiming to create a corporate identity program - because this is not the mission of the architect - but look at Sao Paulo and the Olympics with poetry and criticism in the true Olympic spirit of peace and hope.
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Este trabalho consiste em desenvolver um programa que seja capaz de descrever a trajetória da bola durante o saque de vôlei. Para isso, foram analisadas todas as forças que atuam sobre a bola e com isso montar um sistema de equações. Para que este possa descreva a trajetória percorrida e assim fornecer melhoria para o fundamento prático para a equipe de Vôlei Medley/Campinas
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The electronic, structural properties and elastic constants of the wurtzite phase of zinc oxide, ZnO, was investigated using computer simulation at Density Functional Theory level, with B3LYP hybrid functional and Hartree-Fock methodology. The electronic properties as well the band energy was investigated through the analysis of the band structures and density of states (DOS), and the mechanical properties was studied through the calculus of the elastic constants C11, C33, C44, C12 e C13. The results are in good agreement with experimental data found in the literature and in accordance with results obtained by another theoretical methodology
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This project aims the verification of doses in canines and felines to chest and coxal exams due to the transition from screen-film to computed radiography system. It also seeks a possible optimization of the new techniques employed in this new system. The study was carried out in Diagnostic Imaging service in Hospital Veterinário da Faculdade de Medicina Veterinária e Zootecnia da Universidade de São Paulo using a conventional x-ray equipment. Initially, data about the physical characteristics of animals and the technique currently used in computed radiography was collected for each of 80 chest and 16 coxal X-ray examinations. The animals were divided into different groups according to the body weight. For each group, were calculated the averages of each item: thickness of the region to be imaged, voltage, current, exposure time, current-time product, size of film used, presence or absence of bucky and focus (small or large). The techniques have been reproduced in phantoms (representative of the thickness of the animal) in order to collect the air kerma entrance. Based on the average of intermediate size M group (weights less than 5 kg for cats and from 10.1 kg and 20 kg for dogs) analysis of image quality using three devices test patterns were made consisting of the evaluation of spatial resolution, low-contrast resolution and contrast-detail. In general, the results showed the dose animals decreased with the use of computed radiography and was possible to preliminary optimization of some techniques used currently in CR