1000 resultados para novas sinonímias
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This work studies the incorporation of new technologies in the sugarcane sector. Are considered the ethanol steam reforming and the gasification of sugarcane bagasse(by-product) processes associated with combined cycle systems (Gas Turbine + Steam Turbine), aggregating hydrogen production and increased electricity supply in the sector, respectively. To verify the technical feasibility of the incorporation processes was performed a thermodynamic analysis, considering data from a typical Brazilian Sugar Cane Industry. In another step the economic viability study of the hydrogen production process was made, with consideration on hydrated and anhydrous ethanol steam reform, comparing the cost of hydrogen production. Also considered studies of economic engineering of the gasification process and the generation of electricity associated. As conclusions, it follows that the ethanol steam reforming is a great alternative for hydrogen production, presenting production cost relatively low, especially when is considered the steam reforming of hydrated ethanol. For the gasification process associated with combined cycle, can be observed an increase of 8.56 times of the electricity production in the sugar cane industry, indicating a positive annual saving when the sales price of the supply electricity is greater than 0.070 US$/kWh. Finally it can be concluded that the incorporation of these new processes allow greater profitability and operational flexibility of Brazilian sugarcane mills
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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Pós-graduação em Educação Escolar - FCLAR
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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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We aim to contribute to studies on the restructuring of the city with a focus on consumption. In the context where cities become the main place of action of man, a deep set of transformations has occurred. We are interested in understanding the redefinition of the logical production and appropriation of urban spaces for consumption of materials and services. For the analysis of delimitation of those commercial and service areas was made to compare the reality observed on the ground and indirectly through data acquisition and mapping obtained from the National Address List for Statistical Purposes, with the boundaries established by zoning and / or by municipal director plans of the cities studied, together with the classification of commercial establishments and in accordance with the standards of the National Classification of Economic Activities Services. We believe the importance of analyzing the process of concentration and dispersion of stores and / or services of Londrina (PR), Presidente Prudente (SP) and Ribeirão Preto (SP)...
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Este texto discorre sobre diferentes concepções de avaliação, que, uma vez materializadas nos instrumentos, devem possibilitar reflexões sobre o estado do objeto avaliado e sobre as práticas educativas que promovem mudanças ou se perpetuam pela reprodução. Destaca a questão do uso de indicadores de forma crítica e busca, nos argumentos que fundamentam essa criticidade, o respaldo para reorientar a gestão educativa. Nesse sentido, discute a intencionalidade da avaliação institucional e dos programas de avaliação de resultados dos sistemas de ensino. Oferece ainda algumas pistas para que, na perspectiva da gestão, as ações avaliativas, pelo seu potencial regulador, tenham participação efetiva na qualificação dos processos educativos. A avaliação, enquanto instrumento de regulação do processo de gestão, o reconstrói.
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This study investigated, by descriptive documental research, the intervention models in Sexual Education in the school with the participation of the family and use of new technologies. The methodological stages were: collects in bases of data, selection and reading of the studies and elaboration of thematic groupings, by the content analysis. Four thematic group were elaborated: 1) intervention models with professionals; 2) intervention models with adolescents; 3) intervention models with the direct participation of the family and 4) Appreciation of the family’s participation in sexual education. The analised articles prioritize the adolescent population, when descrive the intervention. Few studies consider the family as important to sexual education and the techniques of the computer science are not very explored as pedagogic resources.
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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A violência, fenômeno multifacetado e socialmente recorrente, há muito invadiu os muros das escolas. Diversos são os relatos sobre manifestações de violência na escola que vão desde a violência simbólica, verbal até a física. Sendo assim, este trabalho tem como objetivo compreender as atuais concepções sobre a violência e articular estas com as teorias do desenvolvimento da moralidade humana, com o intuito de estudar as formas de como essa violência, segundo a teoria do desenvolvimento moral, aparece nas escolas na contemporaneidade. Concluímos que as teorias do desenvolvimento moral, tanto na sua parte teórica quanto metodológica, andam se tornando fundamentais na busca de diálogos que promovam mais amadurecimento de conceitos como: a dignidade, a justiça, a bondade, a solidariedade e ao respeito a outros seres humanos, com o intuito de promover uma educação pacificadora e, desta forma, anular significativamente a violência e a sua banalização, principalmente nas escolas.
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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Pós-graduação em Biologia Animal - IBILCE
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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)