299 resultados para Malhas de Voronoi


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

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A pesquisa tem como objetivo analisar o impacto dos condomínios fechados no fragmento da malha urbana em que se inseri. Além disso, pretende-se avaliar a percepção ambiental que os condomínios fechados exercem sobre os cidadãos, sejam eles usuários dos condomínios ou do seu entorno. A metodologia fundamenta-se em pesquisa de campo, pois serão aplicados questionários junto aos moradores de condomínios fechados, as pessoas que moram ou trabalham em locais próximos desses empreendimentos, e a arquitetos, planejadores e urbanistas. Para tanto, adotou-se os métodos empregados em pesquisas de Avaliação Pós-Ocupação (APO). Através dos resultados obtidos pela APO, pretende-se diagnosticar e compreender os efeitos positivos e negativos desse tipo de empreendimento em malhas urbanas

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The metropolitan region of São Paulo is the most populous of the country, this happens because of its great importance in the national economy and the job opportunities that are offered to the population. These factors result in intense population growth and urban expansion, reaching some non-habitable places of the metropolis, as areas of pipelines, which are very important for the transportation of natural gas, oil and its derivatives. Before the population growth of the region, these sites were unoccupied, do not presenting problems for the population. However, with the disorderly occupation is generated great anthropogenic pressure on the pipeline stitches, causing risks to people who are around them. Therefore it is extremely important to monitor the strip of pipelines through products and techniques of remote sensing and geoprocessing, enabling, through high spatial resolution images, identification of objects or phenomena that occur on Earth's surface that can alter the functioning and safety of pipelines. Therefore, this study aims to monitor a stretch of the area of the pipeline mesh GASPAL/OSVAT and Capuava Refinery (RECAP), located on the outskirts of the metropolitan area of São Paulo in the city of Mauá, who suffer great human pressure, proving thus the techniques of remote sensing and geographic information system (GIS) as effective tools for monitoring phenomena occurred in urban areas of great complexity. The monitoring was done by object-based classification applied in orbital images Ikonos II and RapidEye, of high spatial resolution and, image processing, detection of objects, segmentation, classification and editing were developed through the eCognition and ArcGis softwares. To determine the statistical accuracy of the mapping of the land cover of the stretch of pipeline in Maua, the results were analyzed by error matrix... (Complete abstract click electronic access below)

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The representation of real objects in virtual environments has applications in many areas, such as cartography, mixed reality and reverse engineering. The generation of these objects can be performed in two ways: manually, with CAD (Computer Aided Design) tools, or automatically, by means of surface reconstruction techniques. The simpler the 3D model, the easier it is to process and store it. Multiresolution reconstruction methods can generate polygonal meshes in different levels of detail and, to improve the response time of a computer program, distant objects can be represented with few details, while more detailed models are used in closer objects. This work presents a new approach to multiresolution surface reconstruction, particularly interesting to noisy and low definition data, for example, point clouds captured with Kinect sensor

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Os curimatídeos são espécies comuns em ambientes lênticos represados, artificialmente construídos. Estudar o ciclo reprodutivo de uma espécie é fundamental para a compreensão da biologia reprodutiva da população em seu ambiente. Por isso, o presente estudo analisou os aspectos da biologia reprodutiva dos sagüirus Cyphocharax modestus, C. cf. nagelii e Steindachnerina insculpta (Curimatidae), no reservatório da pequena central hidrelétrica Mogi Guaçu, município de Mogi Guaçu, estado de São Paulo. Os exemplares foram coletados bimensalmente entre agosto de 2005 e julho de 2006 com o auxílio de redes de emalhar (malhas 1,0 a 5,0 cm entre nós adjacentes), totalizando seis amostras. No total, foram analisados 777 exemplares, sendo 525 de C. modestus, 82 de C.cf. nagelii e 170 de S. insculpta. A dinâmica reprodutiva foi analisada considerando-se os períodos seco e chuvoso. A fecundidade foi estimada de acordo com o método volumétrico a partir da análise de 168 pares de ovários maduros, sendo 121 de C. modestus, 18 de C. cf nagelii e 29 de S. insculpta. Também foram estimadas as relações gonadossomáticas médias e as correlações do número total de ovócitos em relação ao peso e ao comprimento para cada uma das três espécies. Os resultados encontrados apontaram para desova total (sincrônica em dois grupos) para as três espécies. O número médio de ovócitos foi de 15.309 a 28.825 para C. modestus, 29.031 para C. cf. nagelii e 27.206 para S. insculpta.

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Increasingly competitive markets have driven the search for companies in many different ways to win and keep customers. The service level is basically the performance of companies in fulfilling the orders made, or how companies demonstrate to their clients efforts in their behalf. This work aims to solve the difficulties faced by a multinational company present in Brazil, in the distribution of its products in the category Ice Cream in order to improve the service level of their customers. Review the logistics network and concepts related to the distribution system of products is one of several ways to achieve this goal, as well as the use of IT and tools to assist in planning and programming of the physical distribution of products. In this study we used the concept of direct distribution system called Transit Point (TP). The TP provides at the same time, a strategy of rapid response, flexibility, low transportation costs and no inventory. A router - software capable of simulating the actual conditions experienced in the daily distribution - was used to assist in calculations. Results showed reductions of up to 47.5% in transportation costs and better conditions were provided in the distribution of products, positively impacting on service levels and in the maintenance of products quality, with a reduction of 1.6% of the total costs involve

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Pós-graduação em Agronomia (Ciência do Solo) - FCAV

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The word literacy acquired a polysemy spectrum which put it away from the notion of social and historic process, at the same time that associates it to codification and decodification of writing. Concerning to this last perspective, we would have nothing to add. However, we sustain, in this paper, considering Pêcheux´s Discourse Analysis and Lacanian Psychoanalysis approaches, that there is a conception of literacy as a phenomenon which influences indirectly individuals and cultures for whom the competence of writing is not established. In this sense, the concept of literacy is larger than alphabetization. As an evidence of this proposal, we analyze a text written by a student, that demanded him to write about a context distant from his own, and, to do so, he mobilized places from the archive and from his particular memory, showing a singular knowledge of writing culture, even though his text presents interpenetration of oral an writing forms, aspect that is not allowed by those who defend an a-historical conception of literacy. We discuss that the student’s text ran away from the reduction of a merely pedagogic ideology and reflects a discursive coherence in face of the challenge that was proposed to him. By the end of this paper, we propose that the teachers should search for devices that make easier for their students to write texts in which their authorship could emerge.

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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The general purpose of this study was a reflexive-theoretical analysis, based on the authors of Psycho-Sociology, seeking to understand how to establish working relationships in organizations considered strategic in the contemporary world. To do so, we identify the strategies that these organizations use to hold the individual in theirs meshes of power, emphasizing the effects of the psychological dynamics and the illusion of “drug organization”. Finally, we elucidated some of the major diseases related to working in organizations with strategic management model, which reflect the violence imposed by managerial policy that promotes a moral harassment and naturalization of suffering at work.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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In this work is presented a new method for sensor deployment on 3D surfaces. The method was structured on different steps. The first one aimed discretizes the relief of interest with Delaunay algorithm. The tetrahedra and relative values (spatial coordinates of each vertex and faces) were input to construction of 3D Voronoi diagram. Each circumcenter was calculated as a candidate position for a sensor node: the corresponding circular coverage area was calculated based on a radius r. The r value can be adjusted to simulate different kinds of sensors. The Dijkstra algorithm and a selection method were applied to eliminate candidate positions with overlapped coverage areas or beyond of surface of interest. Performance evaluations measures were defined using coverage area and communication as criteria. The results were relevant, once the mean coverage rate achieved on three different surfaces were among 91% and 100%.

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