968 resultados para Fluxos Ópticos
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Environrnental issues are in focus lately, mainly due to climate change that have been registered in recent decades. Some of these changes are attributed to the increased atmospheric concentration of greenhouse gases induce, main1y due to anthropogenic emissions. These gases act by absorbing heat in the form of electromagnetic radiation emitted by the planet, and after a time interval, reissuing such radiation in various directions, including back to the surface, causing overheating of the same. Projections indicate that climate change wiIl tend to increase even more. Because of this, in recent years a number of studies are being conducted on the dynamics of inducers of greenhouse gases, especially C02, because that is primarily responsible for the development of that phenomenon. To better understand the flow of C02 are studied specific areas, as regions bordering the forests, soils that are under preparation for agriculture, urban areas, among others. Forests are an important sink for C02, because during the process of photosynthesis, this molecule is captured and used to obtain glucose. Thus, studies of the regions bordering the forests contribute enough to the understanding of the dynamics of C02. Because it requires a large amount of factors, the concentration of CO2 in a given location is very variable and this makes it much more difficult to understand their dynamics and, consequently, the action of the enhanced greenhouse effect. Being a relatively new area of study, there are many controversies about the consequences of the greenhouse effect, so that the community does not believe that climate change resulting from human action. According to them, such changes are merely natural phenomena and periodicals
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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The process of urbanization that happened in Brazil during the twentieth century led to processes of structuring and re-organization of space, besides the emergence of many urban problems. Industrialization and urbanization are some of the main causes that could be cited as consequences of this process. As a result of the steep rise of cities, the transport systems became fundamental in boosting flows (immaterial) and the mobility of people and stuff (materials) in the territory. The urban model created for the city of São Paulo in the 1930s was repeated over the years in the medium-sized cities, being repeated the same problems that occurred in the metropolis. In this context our work fits in analyzing the changes occurring in the urban area of São José do Rio Preto - SP, from his relationship with the public transportation system in the face of intra-urban spatial configuration of the city. Transport, while it is recognized by authors as being really important for the analysis and intra-urban spatial configuration, has been little analyzed as the object of study by a geographer, and so, our work has more value
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This work presents an intervention at the Guaratinguetá Railway Station and its surroundings, including this area in the urban context, at this moment isolated of the activities and citizen attentions, offering new activities on this commercial area. The selected area finds itself in a state of neglect and forgetfulness from the urban relations. Located between the periphery of the commercial center and the Paraiba do Sul River, the correlation is tension between the advancement of shops, the railway line, and the natural barrier of the Paraiba River. On the context of these limits, the railroad and the river stand as barriers for the center expansion and the flows that connect the old part of the town with the new part, which is growing and is called “post-city river”. These barriers have relegating properties around them to isolation, despite being located in the center. The area choice and this intervention seeks to break this isolation and the barrier flow, linking areas of opposite sides to form a leak through the barrier of the railway line. The pedestrian flow is prioritized in the project, this flow will be attracted by the program offered and by the new created areas, increasing the space utilization by users and breaking the isolation of urban activities. And entering the area in the context of life of city residents. The attraction of these new flows will be through the implementation of a Cultural Center, supplying a lack of city by spaces that offer this type of activity. Its implementation aims to attract and modify the activities of these spaces and the surrounding areas, one side facing the commercial center, and another facing the river, linking this two sides at the same time that this link provides the expansion of distance traveled and known
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A importância da agroecologia se dá no sentido de fornecer e ser, base e estrutura de conhecimentos mesclados, incorporando saberes tradicionais aos saberes técnicos científicos atuais, sem excluir ou rejeitar, mas usando ambos a favor da transição para uma pratica agrícola mais sustentável e coerente com os fluxos e com a complexidade natural de um ecossistema, o que não se percebe nas práticas agrícolas modernas e convencionais. Inúmeros estudos constataram que para uma boa efetividade de sistemas agroecológicos é necessário recuperar e manter o equilíbrio biológico do solo, pois isso influenciará em suas características físicas e químicas. O objetivo desse trabalho foi de caracterizar o solo sob Sistema Agroflorestal (SAF) e uma Pastagem, no município de Rio Claro (SP), para a obtenção de atributos do solo, morfológicos, físicos e químicos e também descrever a diversidade do extrato arbóreo presente na área, incluindo as espécies agrícolas, e levantar o histórico de implantação do sistema, de modo a criar e dar início a formação de um banco de dados científicos para o Grupo de Extensão Gira-Sol. Foram escolhidos dois perfis nas seguintes situações: sistema agroflorestal e uma Pastagem para descrição morfológica do solo. Em cada área foi efetuada a coleta de amostras deformadas e indeformadas e caracterizados os atributos granulometria, analises química, densidade do solo, porosidade do solo e resistência à penetração. Para a descrição morfológica dos perfis foi utilizado os procedimentos descritos por Lemos e Santos (2002), para os atributos químicos e de fertilidade do solo, Camargo et al. (1986) e EMBRAPA (1997), para granulometria, densidade e porosidade do solo e argila dispersa em água. A descrição da vegetação foi feita com auxilio de guias de identificação e por meio de parcelas, onde as espécies foram tabeladas e plotadas em um mapa da área para localização das mesmas, e.
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Pós-graduação em Artes - IA
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Some of the factors that help to explain the Israeli success case on promoting high-tech start-ups backed by venture capital funds can be found in the risk-taking culture of the country, the vast technological know-how associated with the huge military development, the high offer of human intellectual capital due to the immigration processes, and finally also the FDI inflows, mainly from the United States. Even though, these factors would not have the same effects in the economy unless the right structures were founded by the public-private sectors partnerships for the high-tech industry development and the adaptation of the investment industry surpasses two of the deepest global financial crisis: the dot-com bubble in the 2000’s and the subprime in 2008
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To the companies maintain competitive in the market, they need continuous improvement in quality and productivity. This continuous improvement can be achieved through lean manufacturing tools. The idea of lean manufacturing is to map the flow to identify the processes that don’t add value in the final product, according the customer specification, in others words is eliminate or reduce the waste on the production flow. However the implementation of lean manufacturing is not so simple and involves the resistance of the employees, lack of training and the lack of knowledge to make the implementation. The objective of this study is determinate the good practices and difficulties found by a multinational company in the field of healthy that aims implementing the Lean Manufaturing through an internal certification. The methodology used to approach the problem is a case of study that analyzes the information introduced through discussion made by a semi structured interview. The case study describes the steps to get the certification, involving the concepts of 5S, balancing, standardization and routine management. The literature and the study case showed that the good practices, such as productivity increases, safety level increases and the machine stability were accomplished, but the majority difficulties was found in cultural factors and planning. Some recommendations were proposed to the others companies, such as the elaboration of a qualification matrix and the review of the activities chronogram during the implementation. The way that the company found to implement Lean Manufacturing concepts was a creative method to show to everybody the objective and the target to be accomplished and is one way to recognize the effort through the certification
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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Pós-graduação em Agronomia (Energia na Agricultura) - FCA
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Os artigos apresentados neste volume da coleção “Desafios Contemporâneos” têm como objetivo refletir sobre os problemas atuais que marcam o diálogo com o campo acadêmico e científico da Comunicação. Os 18 artigos reunidos aqui contemplam a área de Comunicação e envolvem diferentes linhas de pesquisa. A iniciativa teve como fim expor não apenas as discussões gerais sobre o campo, mas também a experiência singular e atuante dos pesquisadores da Unesp dedicados ao estudo da Comunicação. Três eixos nortearam a organização dos artigos. O primeiro, “Múltiplas formas de linguagem e produção de sentido”, reúne textos que investigam o campo da produção, da circulação e do funcionamento e das estruturas da linguagem nas diversas mídias e nas suas tipologias textuais. “Políticas e estratégias da Comunicação” trata dos processos e fluxos de comunicação no mundo atual e sua relação com a política na sociedade. Já o terceiro eixo, “Relações socioculturais e suas manifestações na esfera da indústria cultural e das mídias digitais”, analisa as dimensões dos processos, da difusão e da recepção dos produtos midiáticos em sua relação sociocultural. Entre os temas abordados estão a comparação entre as linguagens jornalística e publicitária, a censura judicial à liberdade de imprensa, o desafio teórico-metodológico na aplicação da antropologia interpretativa ao campo da comunicação, conjunturas e desafios da educação superior em comunicação no Brasil, a focalização da vida operária no cinema de Leon Hirszman pelo filme Eles não usam black-tie, entre outros.
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
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The process of steel production emits a large quantity of greenhouse gases, specifically carbon dioxide (CO2), and the reduction of such emissions is one of the main challenges for the industry in the 21st. Century. To quantify these emissions, the Worldsteel Association (association of the 170 large steel manufacturers of the world) published a methodology (CO2 Emission Data Collection) for calculation and comparison of CO2 emissions among its members. After that, in 2010, this methodology became an ISO (International Organization for Standardization) norm. Today, the calculation of the CO2 emissions in steel making companies follow the ISO 14404-1 for units with blast furnaces and the ISO 14404-2 for units with electric furnaces. In the last years, new technologies were and continue to be developed for the steel making sector aiming at energetic improvements and greenhouse gas reductions (mainly CO2) by the several processes involved in the production of steel. This work had the objective of producing a tool to calculate the CO2 emissions for the steel making sector. An Excel spreadsheet was developed to calculate the emission intensities of CO2 of a steel plant, the Usina Presidente Vargas, of the Companhia Siderúrgica Nacional (CSN). The spreadsheet furnishes results of CO2 emissions and energetic fluxes, and simulates the benefits that some of the new technologies can give to the company. The spreadsheet calculates the emissions in two ways: a) based on the carbon fluxes that enter the unit, and b) based on the emissions of each specific process within the unit (coking, sinterization, blast furnace, among others)
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Pós-graduação em Química - IQ