990 resultados para Problema de dimensionamento de lotes


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Difficulties with sleep are frequent in the pre-schooler children. The aim of this study was to present a case report of behavioural intervention by parental guidance to sleeping problems in a pre-schooler child. Participated in this study a four years old boy that had difficulties to sleep without the presence of his parents and his mother who was oriented through a parental program. The program of intervention was composed by five sessions in which the mother acquired education about the child’s sleep, received orientation about the establishment of time and routine to sleep and about the use of techniques (extinction and positive reinforcement) for the improvement of the sleep difficulties. The sleep and behaviour were evaluated in four periods (pre-treatment, post-treatment, one and six months follow up) according to the following instruments: 1) UNESP Scale of Habits and Hygiene of the Sleep – Children Version, 2) Scale of Sleep Disorders for Children and Teenagers, 3) Child Behavior Checklist (CBCL 1,5-5) and 4) sleep diary. The results showed that after intervention the child developed independent sleep, reduced the bed resistance and showed improvement in daily behaviors. To conclude: a behavioral intervention by parental guidance was effective to sleep problems of the child.

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The most challenging Deleuze/Guattari’s lesson regar- ding art is that it is an autonomous way of thinking and bears of no lack relatively to philosophy and science. In fact, creating artistically is thinking. Throughout this article, I will try to show that art and philosophy are autonomous modes of thinking, as far as the statute of their creations is multiplicity. The multiplicity that characterizes philosophy is concept; the multiplicity that characterizes art is sen- sation. Both of them have their multiplicity character guaranteed by the instance of the problems, to which they are solutions. The most important is that the problems although independent constitute in- terference channels through which two modalities of meeting could happen. First, sensations point out how could a thinker endures in the instance of problems, avoiding both to deprive the concept and to fall in philosophical illusions. In second place in the instance of the problem philosophy and art exchange, so that either a thinker takes an art sensation and extracts from it its generating problem to be philosophically solved or, vice-versa, an artist takes a concept and solves its problem creating new art sensations.

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O conceito de problema, que Deleuze desenvolve em vários momentos-chave de seu pensamento, tem em sua alçada bergsoniana um ponto forte. No presente artigo, procuraremos mostrar de que modo Deleuze vale-se do caminho de Bergson neste âmbito para propor e articular, em torno da idéia de problema, dois dos conceitos originais pelos quais ficou conhecido, ou seja, a multiplicidade e o inconsciente. Veremos que o conceito de problema está na base de uma tipologia deleuzeana das multiplicidades, assim como lhe permite elaborar uma idéia de inconsciente como multiplicidade onde o desejo responde pela instância problemática. Desse modo, conclui-se pela importância determinante da filosofia bergsoniana para Deleuze, particularmente quanto à passagem de sua ontologia para um dos concietos que a realizam e aplicam.

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Pós-graduação em Filosofia - FFC

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The main aim of this paper was to use the REZZ software to calculate the tank volume rainwater harvesting system. For this purpose, rain data of Ponta Grossa-PR-Brazil were used considering different statistical treatment (average, 75%, 85%, 95% and 99% of confidence) and different roof areas (50, 80, 120 and 200 m2). The harvesting system was considered only for toilet flush in households with 3, 4 and 5 inhabitants. There were applied the following methods/concepts: Flow equalization (Rippl); Brazilian method as well the English and German practical methods. Further, the mass-balance was simulated for some conditions. All considered methods are described in NBR15527/07, the Brazilian standard for rainwater harvesting. As expected, the results pointed out for huge differences depending on the choice method and the statistical treatment of the rain data. The REZZ appliance showed to be useful thus permitting to set different conditions and to obtain rapid results in order to assist designers to adopt the best cistern volume for each particular case.

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This paper focus to apply, to discuss and to propose the Maximum Harvesting Method improvement, regarding the method application, for household rainwater harvesting systems. For this purpose, the rainwater was considered to supply the flush toilet demand in a household for 3, 4, and 5 inhabitants. The 80, 120 and 200m2 catchments areas and the 0, 1, 2 and 4mm first flushes discharges were also considered. Further, the improvement suggestions for cistern volume calculus and volume/level dynamics variation in a period were presented and the results were compared applying the Simulation Analyses Method. The results indicate that the Maximum Harvesting Method could be applied and that the improvement proposal can be used to determinate the cistern volume as well to analyze the dynamic behavior of volume/level, constituting by itself a single tool to assist rainwater harvesting systems designers.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Devido à constante preocupação do meio ambiente, o uso de fluidos de corte tem se tornado um problema para a indústria mecânica atual por se tratar de substâncias tóxicas. Seu uso e sua dificuldade de descarte devido rígida Legislação Ambiental, faz com que o fluido de corte seja responsável por uma grande parte do custo final do processo, provocando, desse modo, um grande interesse em pesquisas referentes a métodos alternativos de forma e quantidade de fluido de corte utilizado. Ao lado das vantagens tecnológicas associadas com o uso dos fluidos de corte estão os enormes perigos atrelados a estes, e que são nocivos ao meio ambiente e à saúde das pessoas. A contaminação do solo, água e ar podem decorrer de vazamentos e perdas, emissões, água de lavagem e da própria disposição dos fluidos de corte.Os componentes dos fluidos de corte como bactericidas e fungicidas reagem com outros produtos inseridos no processo de corte, tornando os fluidos, materiais que podem vir a causar doenças. Assim, este trabalho tem como objetivo apresentar a utilização do fluido de corte por mínima quantidade de lubrificação como alternativa para se minimizar o impacto ambiental das indústrias mecânicas.

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The purpose of this work is to study the theme “infiltration trenches” in some of its main aspects, in order to subsidize the installation of these structures in the urban area of Rio Claro/SP. For sizing, the “rain-envelope method” was used based on local characterization data and the IDF (intensity-duration-frequency) curve. Five locations were chosen in the urban area of Rio Claro for implementation of these devices, considering the soil type, hydraulic conductivity of each area and minimum lot size according to the Master Plan of Rio Claro. This work also presented an estimated reduction of the runoff in urban lots by using infiltration trenches.

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Este artigo traz os resultados obtidos através do estudo e da aplicação do Método Primal-Dual Previsor-Corretor de Pontos Interiores para Problema de Programação Quadr´atica convexa a um Problema de Despacho Econômico (PDE) e a um Problema Multiobjetivo de Despacho Econômico e Ambiental (DEA). O primeiro problema busca determinar a solução ótima aproximada, minimizando os custos dos combustíveis empregados na geração termoelétrica de energia e satisfazendo as restrições operacionais. Já o segundo é solucionado através do Método da Soma Ponderada, que apresenta um balanceamento entre o problema de otimização dos custos e o problema de emissão de poluentes. Ao final do artigo, um algoritmo para cada problema é proposto e implementado computacionalmente utilizando o software Borland C++ Builder 6.0. Os testes foram realizados utilizando um PDE de 13 geradores e um DEA de 06 geradores e os resultados obtidos demonstram a eficiˆencia dos m´etodos quando comparados a outros encontrados na literatura.

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This work aimed to develop an optimization methodology for reservoir sizing in rainwater harvesting systems in order to increase the economic viability of projects in this area. For this, concepts of Operations Research were used so as to develop mathematical programming problems related to minimizing the life cycle cost and maximizing efficiency. The results obtained for different sizing methods were presented based on a case study, emphasizing the importance of tools that are able to provide a more accurate analysis and tend to significantly increase the economic viability of rainwater harvesting systems.

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

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Pós-graduação em Engenharia de Produção - FEB