795 resultados para Alocação de zeros


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Relatório de atividades do INSA relativo ao ano de 2015. Este instrumento tem dois grandes objetivos: 1) Averiguar a concretização do Plano de Ação de 2015. Nomeadamente, avalia a estratégia assumida através dos seus objetivos estratégicos, isto é, verificar o grau de realização dos programas e dos objetivos operacionais atingidos que foram propostos no QUAR e no Plano de Ação; 2) Prestar informação institucional relativamente à execução do orçamento, à alocação de recursos humanos, financeiros e técnicos, para além de demonstrar quantitativa e qualitativamente os dados das funções essenciais inerentes ao Departamentos Técnicos e Científicos.

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A EGEO Solventes S.A. é uma empresa com atividade na área da gestão de resíduos, focando-se na regeneração de solventes. Na unidade industrial da empresa recorre-se à destilação de misturas de solventes usados para obtenção do solvente regenerado. Esta operação exige água para o arrefecimento e condensação dos destilados das misturas de solventes, que, posteriormente, é arrefecida em torres de refrigeração instaladas na unidade. Durante o tempo de operação da unidade foram identificados problemas na condensação dos solventes limpos, obrigando a que se ligassem dois condensadores em série para assegurar a condensação do vapor produzido na destilação e à necessidade de caudais maiores de utilidade fria. Outro dos problemas identificados foi a baixa eficiência das torres de refrigeração, uma vez que a diferença de temperaturas da água à entrada e à saída do equipamento é muito baixa. Assim sendo, o objetivo principal deste trabalho é identificar as principais causas para a baixa eficiência dos equipamentos e propor alterações aos equipamentos ou soluções de melhoria do processo. Para diagnosticar estes problemas foram recolhidas amostras para determinação da composição do solvente limpo obtido e registadas as condições de operação para obtenção da mistura ECOSOLVE MET. Recorrendo a metodologias de projeto determinou-se o fator de resistência do fouling no condensador C1 e seguidamente a geometria, a alocação de correntes e a orientação do condensador mais adequadas e concluiu-se que este está sujeito a uma forte acumulação de material nas paredes e que a melhor opção seria recorrer a um permutador horizontal com condensação na carcaça, mas aumentando o número de passagens da água nos tubos. No que diz respeito à operação da torre de arrefecimento, determinou-se o caudal mínimo de ar para determinadas condições de operação e verificou-se que o caudal de ar alimentado à torre era superior ao mínimo determinado. Foram observadas diferenças quando comparadas as condições de operação experimentais com a performance da unidade usando oito enchimentos estruturados e aleatórios para os quais há dados na literatura São também apresentadas alternativas de operação e o projeto de uma torre de arrefecimento de água, sustentada numa análise económica de todo o processo. As simulações foram realizadas com recurso ao AspenPlus®.

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The municipal management in any country of the globe requires planning and allocation of resources evenly. In Brazil, the Law of Budgetary Guidelines (LDO) guides municipal managers toward that balance. This research develops a model that seeks to find the balance of the allocation of public resources in Brazilian municipalities, considering the LDO as a parameter. For this using statistical techniques and multicriteria analysis as a first step in order to define allocation strategies, based on the technical aspects arising from the municipal manager. In a second step, presented in linear programming based optimization where the objective function is derived from the preference of the results of the manager and his staff. The statistical representation is presented to support multicriteria development in the definition of replacement rates through time series. The multicriteria analysis was structured by defining the criteria, alternatives and the application of UTASTAR methods to calculate replacement rates. After these initial settings, an application of linear programming was developed to find the optimal allocation of enforcement resources of the municipal budget. Data from the budget of a municipality in southwestern Paraná were studied in the application of the model and analysis of results.

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Due to the high supply and its attractive cost, the poultry litter has been used in the southwestern region of Parana to the improvement of soil fertility seeking greater production of grains and pastures. However, the use without technical knowledge can minimize the benefits of poultry litter or even cause undesirable effects on soil, environmental pollution and also productivity losses in the used crops. The objective of this study was to evaluate the influence of different times of poultry litter application, predating the winter crop, associated with increasing levels, about soil chemical properties, release of nutrients and crop performances in four consecutive years (2011-2014). In the first three years the experimental design was randomized blocks with a split plot system and four replications. In the main plots were tested four poultry litter application times preceding the wheat production: 0, 15, 30 and 45 days before sowing (DAS); in the subplots were applied four poultry litter levels (wet basis): 0, 4, 8 and 12 Mg ha-1. Last year one more subdivision of plots was done, evaluating the use or not of nitrogen in coverage in wheat, at a dose of 100 kg N ha-1. The wheat cultivar used in the four years was the BRS 220. In three years it was evaluated the residual effect on soybean production (cultivar - BMX Turbo RR) and in one year on the beans. The chemical soil attributes were evaluated at four depths 0-2,5cm, 2,5-5cm, 5-10cm and 10-20cm, and also the rate of decomposition and nutrient release of poultry litter and the crop productivity. The different times of application concerning the poultry litter had little influence on the studied variables, demonstrating that the producer does not need to have a specific date (before planting) to the application of poultry litter. Potassium was fully released 60 days after the allocation of litter bags into the field; for nitrogen and phosphorus the release was slower. The use of increasing levels of poultry litter increased the levels of various soil elements, highlighting the potassium which reached 20 cm deep in the second year of evaluation. The increase in pH and in the base saturation occurred only in the upper layers, while the phosphorus reached 10 cm deep in the third year of the study. It was observed increased pH and base saturation. The use of increasing doses of poultry litter contributed to the wheat plant nutrition, significantly increasing the weight of a thousand grains, and the grain yield of wheat in all the evaluated years; the nitrogen fertilization in coverage also had significant effect for the fourth evaluated year. Also there was a significant response from the residual effect of poultry litter for crops planted in summer for both soybeans and beans.

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The managing Conselho of public politics constitute one of the main experiences of democracy in Brazil contemporary representing a conquest for construction of a democratic institutionalism. The historical newness consists of the intensification and the institutionalization of the dialogue between government and society - in public and plural canals - as condition for an allocation more efficient joust and of the public resources. In this context the present study it objectified to understand from readings of the performance of represented group of bencheses the dynamics of functioning of the Tourist Conselho Pólo Costa das Dunas while space of participation and social control. The bibliographical research contemplated diverse sources in order to compile knowledge of credential authors in the quarrel of inherent subjects to the civil society and the public sphere to the construction of the citizenship to the conception formation and dynamics of the social control through Conselho of public politics. A qualitative perspective the case study was adopted as research method and for attainment of the data interviews with the members of the Conselho had been carried through beyond consultation the referring documents the dynamics of functioning of the Conselho. The profiles capacities and limitations of the members of the Conselho had been identified constitution social and dynamic organization of functioning of the Conselho and the readings of the members of the Conselho concerning the power to decide instances and participation. The results had shown that the allotment of being able in the Conselho does not occur of equal form. The functions of coordination of the activities of the Conselho are assumed by the representatives of the public agencies. Level of qualification of council members also if presents as difficulty to development of activities of Conselho since the majority of the interviewed ones disclosed unreliability and unfamiliarity when thematic specific that runs away from its organizacional reality they are boarded in the assemblies. Of this form the Conselho if presents more as half of institutional legitimation of what half of characterization of the creation of a public sphere properly said. Finally he could himself be concluded that a democratic culture inexists that inside crosses practical the institutional ones of the Conselho thus limiting the possibility to reach the effective social control of the public politics of tourism in the Rio Grande do Norte

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The mobilization of food reserves in storage tissues and allocation of their hydrolysis products in the growing axis are critical processes for the establishment of seedlings after germination. Therefore, it is crucial for mobilization of reserves to be synchronized with the growing axis, so that photosynthetic activity can be started before depletion of reserves. For this, integrative approaches involving different reserves, different hydrolysis products and interaction between storage and growing axis tissues, either through hormones or metabolites with signaling role, can contribute greatly to the elucidation of the regulation mechanisms for reserve mobilization. In this study, was hypothesized that hormones and metabolites have different actions on reserve mobilization, and there must be a crossed effect of sugars on the mobilization of proteins and amino acids on lipids and starch mobilization in sunflower seedlings. This study was conducted with seeds of sunflower (Helianthus annuus L.) hybrid Helio 253 using in vitro culture system. Seeds were germinated on Germitest® paper and grown on agar-water 4 g/L without addition of nutrients during 9 days after imbibition (DAI) for growth curve. To verify the effect of metabolites and hormones, seedlings were transferred in the 2nd DAI to agar-water 4 g/L supplemented with increasing concentrations of sucrose or L-glutamine, abscisic acid, gibberellic acid or indolebutyric acid. The results of this study confirm that the mobilization of lipids and storage proteins occurs in a coordinated manner during post-germination growth in sunflower, corroborating the hypothesis that the application of external carbon (sucrose) and nitrogen (L-glutamine) sources can delay the mobilization of these reserves in a crossed way. Moreover, considering the changes in the patterns of reserve mobilization and partition of their products in seedlings treated with different growth regulators, it is evident that the effects of metabolites and hormones must involve, at least in part, distinct mechanisms of action

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The introduction of delays into ordinary or partial differential equation models is well known to facilitate the production of rich dynamics ranging from periodic solutions through to spatio-temporal chaos. In this paper we consider a class of scalar partial differential equations with a delayed threshold nonlinearity which admits exact solutions for equilibria, periodic orbits and travelling waves. Importantly we show how the spectra of periodic and travelling wave solutions can be determined in terms of the zeros of a complex analytic function. Using this as a computational tool to determine stability we show that delays can have very different effects on threshold systems with negative as opposed to positive feedback. Direct numerical simulations are used to confirm our bifurcation analysis, and to probe some of the rich behaviour possible for mixed feedback.

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O ser humano é, desde sempre, caracterizado por um elevado sentido de competitividade perante o meio que o rodeia. O gregarismo é igualmente sua característica intrínseca. Por essas razões, desde os primórdios da sua existência, procura juntar-se aos seus semelhantes que partilhem uma mesma visão sobre um determinado conjunto de objetivos que almejam, em grupo, atingir, formando dessa forma Organizações. Para que esses objetivos sejam cumpridos com a maior eficiência possível, as Organizações desenvolvem continuamente mecanismos e ferramentas que lhes permitam selecionar os indivíduos mais capazes de entre os que pretendem contribuir para a sua missão. As competências e a gestão de competências são amplamente aceites na comunidade científica como sendo ferramentas fundamentais para a gestão de recursos humanos nas Organizações inseridas na sociedade do novo século, pelo facto de conseguirem garantir a alocação dos elementos mais capazes para cada uma das posições organizacionais existentes. Apesar das vantagens associadas àquelas ferramentas, a Força Aérea (FA) ainda não as utiliza de uma forma transversal, não estando sequer o conceito de competência definido de forma inequívoca e estandardizada nos manuais da Organização. Recorrendo aos princípios e mecanismos de Engenharia Organizacional (EO) e aos conhecimentos na área das competências existentes na literatura, este trabalho procura colmatar essa lacuna, através do desenvolvimento de um conceito transversal de competência para a FA, que se desdobra numa proposta de definição de competência transversal para a Organização, uma roda de competências transversais e a elaboração de um perfil de competências. Desta forma, pretende-se com a presente investigação dar um contributo para a introdução em definitivo do conceito de competência na Organização, aumentando-se dessa forma a Organizational Self-Awareness e a qualidade do produto gerado.

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Os shoppingcenters são grandes instituições repletas de empresas quecompetem entre si formas de como melhor satisfazer as necessidade dosclientes. Sendo assim, cada empresa utiliza-se de estratégias com o intuito deatingir a maior parcela de compradores possíveis sem comprometer suaexistência e sua vantagem competitiva. Este estudo está baseado na teoria dasestratégias competitivas genéricas de Porter (1980; 1985) o qual estabeleceem seu modelo que todas as empresas existentes no mercado possuam pelomenos uma das três abordagens estratégicas (diferenciação, liderança emcusto e enfoque). Desta forma, este trabalho identifica de que maneira estádistribuída as estratégia competitiva nas empresas de shoppingcenters deNatal/RN. Primeiramente buscou-se levantar a relação das estratégias destasempresas com a teoria proposta por Porter (1985) e sua alocação de acordocom os agrupamentos resultantes da combinação das estratégias. Nestemomento, foram aplicados questionários com 89 gerentes de lojas de shoppingcenters que resultou após análises estatísticas em cinco agrupamentos comabordagens válidas. Em seguida foram selecionadas as empresas quepossuíam maior afinidade com cada agrupamento e que melhor representavamos resultados dispostos em cinco clustersacerca da teoria proposta e nestaamostragem foi aplicada entrevista com os gerentes. Os resultados obtidos com as entrevistas validaram a análise dos dados encontrados nosquestionários anteriormente aplicados estando em conformidade com aproposta teoria. Identificou-se também duas modalidades de empresas queutilizavam simultaneamente mais de uma estratégia competitiva (meio-termo),sendo uma dentro e outra fora do modelo proposto pelo autor. Embora omodelo das estratégias competitivas genéricas tenha sido instituído comaspectos voltados as organizações industriais, os resultados obtidos nestetrabalho validaram a aplicação desta teoria em empresas comercias deshopping centers que vem se adequando para obter resultados financeirosmais satisfatórios e melhor posicionamento em relação à concorrência

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Dissertação (mestrado)—Universidade de Brasília, Faculdade de Economia, Administração e Contabilidade, Programa de Pós-Graduação em Administração, Mestrado Profissional em Administração, 2015.

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Dissertação (mestrado)—Universidade de Brasília, Faculdade de Economia, Administração e Contabilidade, Programa de Pós-Graduação em Administração, Mestrado Profissional em Administração, 2015.

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Neste artigo os modelos de crescimento e alocação de investimento a la Feldman-Mahalanobis são estendidos para considerar a análise de decisões de alocação de investimento no contexto do modelo de crescimento pós-Keynesiano. Ao adotar essa abordagem é possível introduzir características distributivas no modelo de Feldman-Mahalanobis que nos permitem determinar a taxa de alocação de investimentos de acordo com as decisões de equilíbrio entre investimento e poupança. Finalmente, uma condição adicional é adicionada ao modelo de crescimento pós-keynesiano, a fim de caracterizar plenamente o caminho de equilíbrio em uma versão estendida deste, onde bens de capital também são necessários para produzir bens de capital. _________________________________________________________________________________ ABSTRACT

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The tertiary sector has been (re)defining and (re)qualifying, in an impacting way, the urban spaces in the cities, introducing new elements for the discussion of the relationship center/periphery. In Natal, as an inducing economic activity of its development, it conforms to the new needs of the capital, expanding, being materialized through several processes and spatial forms. We aim at analyzing one of those processes, which has taken its Northern Administrative Area to (re)define the design of its urban space, through the actions developed by the agents involved with the spatialization of the tertiary activities, at the same time as it redimensions its role as a periphery of Natal, contributing to the study of the recent and growing transformations of the Brazilian capitals. The studied district corresponds to 39.4% of the municipal area and, until recently, was composed by precarious reproduction spaces, unprovided of relevant economical activities. After the boom of the development of extensive housing complexes by SFH/BNH, the area, gradually stopped being a dependent area, and it imposed itself as an economically participant region, with the increase of the trade and services sectors, as well as a favorable place for the appearance of new activities. Its reflexes are noticeable in the achieved spatial configuration. As the main road to induct changes, Dr. João Medeiros Filho Avenue presents these new tendencies in the production of the intraurban space, concentrating the largest goods and services equipments of the area, through investments of the private and public sectors, which guarantee the capital allocation for the construction of a new centrality

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Dissertação de Mestrado, Biologia Marinha, Faculdade de Ciências e Tecnologia, Universidade do Algarve, 2015

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This dissertation is about the spatial configuration in Natal and processes in the Ponta Negra neighborhood today. Ponta Negra has undergone a number of critical social and spatial changes due to tourism development after the 1990s. It is of special interest to consider the intensification of real estate investment after 2000, when the new airport terminal, located in the neighboring municipality of Parnamirim, was in use. Ponta Negra is the place where most tourists go to, so attracting considerable public investments. New agents of transformation have produced change in the neighborhood as well. The present study aims at analysing the spatial processes in this part of the city. Here, the spatial configuration that resulted from extended real estate investments, both public and private, in recent years, is analysed in detail. The study identifies the multually differentiated, however internally homogenous areas. The concepts of production of space, contemporanean urban development and spatial dynamics are discussed. The research is based on document analysis and field work. Results were plotted to maps and tables. A detailed analysis of the spatial processes in the Ponta Negra neighborhood is undertaken as a conclusion, considering the contemporanean global scenario