976 resultados para Licenciamento Zero


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Mestrado em Gestão e Empreendedorismo

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O trabalho intitulado - Análise de programas de Educação Ambiental no licenciamento ambiental de usinas hidrelétricas no Rio Grande do Sul: um estudo de caso - busca fazer uma análise compreensiva, reflexiva e problematizadora das ações de Educação Ambiental realizadas durante o processo de licenciamento ambiental, como medidas mitigadoras e/ou compensatórias de impactos ambientais causados pela instalação/operação de empreendimentos hidrelétricos. O objeto de análise foi o Programa de Educação Ambiental da UHE São José, instalada no rio Ijuí, interior do estado. Utilizou-se o movimento recursivo e reflexivo para elaboração da pesquisa, onde a primeira fase foi composta pelo levantamento bibliográfico que serviu de base para as discussões propostas, e a segunda fase foi composta pela investigação do referido programa, tendo como corpus da pesquisa documentos e entrevistas, e utilizando-se da Análise Textual Discursiva (ATD) como metodologia de análise. Os resultados obtidos fazem refletir sobre a ocupação dos espaços do licenciamento ambiental por uma Educação Ambiental que vá além do simples cumprimento das leis e normas, mas que seja de fato integradora e participativa, e envolva o compromisso dos empreendedores, das comunidades atingidas e dos órgãos fiscalizadores, contribuindo com a gestão ambiental e a sustentabilidade dos locais em transformação.

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We study the relations of shift equivalence and strong shift equivalence for matrices over a ring $\mathcal{R}$, and establish a connection between these relations and algebraic K-theory. We utilize this connection to obtain results in two areas where the shift and strong shift equivalence relations play an important role: the study of finite group extensions of shifts of finite type, and the Generalized Spectral Conjectures of Boyle and Handelman for nonnegative matrices over subrings of the real numbers. We show the refinement of the shift equivalence class of a matrix $A$ over a ring $\mathcal{R}$ by strong shift equivalence classes over the ring is classified by a quotient $NK_{1}(\mathcal{R}) / E(A,\mathcal{R})$ of the algebraic K-group $NK_{1}(\calR)$. We use the K-theory of non-commutative localizations to show that in certain cases the subgroup $E(A,\mathcal{R})$ must vanish, including the case $A$ is invertible over $\mathcal{R}$. We use the K-theory connection to clarify the structure of algebraic invariants for finite group extensions of shifts of finite type. In particular, we give a strong negative answer to a question of Parry, who asked whether the dynamical zeta function determines up to finitely many topological conjugacy classes the extensions by $G$ of a fixed mixing shift of finite type. We apply the K-theory connection to prove the equivalence of a strong and weak form of the Generalized Spectral Conjecture of Boyle and Handelman for primitive matrices over subrings of $\mathbb{R}$. We construct explicit matrices whose class in the algebraic K-group $NK_{1}(\mathcal{R})$ is non-zero for certain rings $\mathcal{R}$ motivated by applications. We study the possible dynamics of the restriction of a homeomorphism of a compact manifold to an isolated zero-dimensional set. We prove that for $n \ge 3$ every compact zero-dimensional system can arise as an isolated invariant set for a homeomorphism of a compact $n$-manifold. In dimension two, we provide obstructions and examples.

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This thesis describes the development and correlation of a thermal model that forms the foundation of a thermal capacitance spacecraft propellant load estimator. Specific details of creating the thermal model for the diaphragm propellant tank used on NASA’s Magnetospheric Multiscale spacecraft using ANSYS and the correlation process implemented are presented. The thermal model was correlated to within +/- 3 Celsius of the thermal vacuum test data, and was determined sufficient to make future propellant predictions on MMS. The model was also found to be relatively sensitive to uncertainties in applied heat flux and mass knowledge of the tank. More work is needed to improve temperature predictions in the upper hemisphere of the propellant tank where predictions were found to be 2-2.5 Celsius lower than the test data. A road map for applying the model to predict propellant loads on the actual MMS spacecraft in 2017-2018 is also presented.

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Certain characteristics of some vegetable crops allow multiple harvests during the production cycle; however, to our knowledge, no study has described the behavior of fruit production with progression of the production cycle in vegetable crops with multiple harvests that present data overdispersion. We aimed to characterize the data overdispersion of zero-inflated variables and identify the behavior of these variables during the production cycle of several vegetable crops with multiple harvests. Data from 11 uniformity trials were used without applying treatments; these comprise the database from the Experimental Plants Group at the Federal University of Santa Maria, Brazil. The trials were conducted using four horticultural species grown during different cultivation seasons, cultivation environments, and experimental structures. Although at each harvest, a larger number of basic units with harvest fruit was observed than units without harvest fruit, the basic unit percentage without fruit was high, generating an overdispersion within each individual harvest. The variability within each harvest was high and increased with the evolution of the production cycle of Capsicum annuum, Solanum lycopersicum var. cerasiforme, Phaseolus vulgaris, and Cucurbita pepo species. However, the correlation coefficient between the mean weight and number of harvest fruits tended to remain constant during the crop production cycle. These behaviors show that harvest management should be done individually, at each harvest, such that data overdispersion is reduced.

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Doutoramento em Gestão.

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This analysis on the ambient licensing is based on a research that identifies the fragilities and advances of the application of this instrument of politics of the environment in the ambient politics of the Rio Grande do Norte, in the period of 1992 the 2003. The isolated urban area of Búzios, situated in the City of Nísia Floresta/RN, situated in the eastern coast of the State, where concentrates the boarding of the ambient question as a matter in the Brazilian process of urbanization, over all the institutionalization and implementation of the ambient licensing. They are distinguished in the used methodology in consultation to the diverse involved social segments with the ambient subject in study, the example of the managers, technician and specialists, as well as the application of the legislation and norms techniques, the forms of appropriation of the common wealth and the procedures of ambient licensing of the competent agencies. The results of the research designate that the ambient licensing while instrument of the ambient politics is one of the alternatives more efficient as techniques in the process of sustainable development, since it is beyond the prerogatives to conciliate the activities and enterprises with the conservation of the environmental resources and natural benefits to the societies. In the RN one evidenced progress in the ambient legislation and the instructions techniques, and that the imperfections and limitations in the system of ambient licensing are not directly on to the instruments, but in the implementation of mechanisms of the ambient agencies. This because they do not make use of operational structure to apply in practical and established abilities, as an ambient management, institutional joint and deliberations of the State Counselor for Environment

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Zero valent iron nanoparticles (nZVI) represent a promising agent for environmental remediation. Nevertheless, their application presents some limitations regarding their rapid oxidation and aggregation in the media. The aim of this study was to determine the effect that nZVI aging has in heavy metal remediation in water. Contaminants studied were Zn, Cd, Ni, Cu and Cr, which are typical elements found in ground and wastewater. Results show a high contaminant removal capacity by the nZVI in the first 2 h of reaction. Nevertheless, for longer reaction times, some of the metal ions that had already been adsorbed in the nZVI were delivered to the water. Cd and Ni show the maximum delivery percentages (65 and 27% respectively after 21 days of contact time). The starting delivery time was shortened when applying lower nZVI amounts. No re-dissolution of Cr was observed in any circumstance because it was the only element incorporated into the nanoparticles core, as TEM images showed. Contaminant release from nZVI is probably due to nanoparticles oxidation caused by aging, which produced a pH decrease and nZVI surface crystallization.

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CEs are the most frequently detected pollutants in groundwater. Several studies have been shown iron-based bimetallic reductants as a good method toward to chlorinated ethylenes degradation. However, many fundamental issues surrounding the chemistry of this phenomena remains elusive. In this study, kinetics and compound specific isotope analysis for reductive dechlorination of TCE and cis-DCE by unamended iron and iron-based bimetal reductants was evaluated. Generally, all the bimetals reductants tested revealed to increase the reactivity of the degradation, in which palladium and nickel were the additional metals more reactive. Ethene and ethane were the major products of TCE degradation. It is supported the simultaneous hydrogenolysis and β-elimination reaction hypothesis, however, the first step of TCE degradation by Au/Fe undergoes preferably by β-elimination, while by unamended iron, Pt/Fe and Co/Fe goes preferably by hydrogenolysis. No apparent elucidation was obtained to explain the high reactivity on bimetals systems; Degradação do TCE e cis-DCE por ferro de valência zero e redutores bimetálicos à base de ferro Resumo: Etilenos clorados são os poluentes mais frequentemente detetados na água subterrânea. Vários estudos têm mostrado que redutores bimetálicos à base de ferro são um bom método para a degradação dos etilenos clorados. Porém, muitas questões fundamentais acerca da química deste fenómeno permanecem elusivas. Neste estudo foi avaliada a cinética e a análise isotópica de compostos específicos para a degradação do TCE e cis-DCE por ferro e redutores bimetálicos à base de ferro. Genericamente, os redutores bimetálicos mostraram aumentar a reatividade da degradação, sendo paládio e níquel os metais adicionais mais reativos. Os produtos principais da degradação do TCE foram eteno e etano. É apoiada a hipótese da simultaneidade de hidrogenólise e β-eliminação, porém, o primeiro passo da degradação do TCE por Au/Fe é realizada preferencialmente por β-eliminação, enquanto por ferro, Pt/Fe e Co/Fe é realizada preferencialmente por hidrogenólise. Não houve uma elucidação aparente para explicar a reatividade nos sistemas bimetálicos.

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Este trabalho descreve a implementação computacional de um sistema de busca avançada em plataforma Web, para dados de empreendimentos e atividades passíveis de licenciamento ambiental, cadastrados no Estado do Mato Grosso do Sul - Brasil, com suporte a pesquisa espacial. Será também detalhada o aplicativo para cadastramento destes empreendimento e atividades. Estes módulos foram integrados ao Sistema Interativo de Suporte ao Licenciamento ambiental ? SISLA e estão em etapa de teste pelos técnicos do IMASUL. O aplicativo de cadastro pretende contribuir para a integração dos empreendimentos rurais neste Estado e a busca avançada tem se mostrado uma ferramenta poderosa de informação aos sistema de monitoramento ambiental.

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2012

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Resumo: Licenciamento ambiental no Brasil é um procedimento com vários níveis e etapas, concebido como ferramenta preventiva aos potenciais danos ambientais causados pela implantação de empreendimentos. Embora este procedimento seja obrigatório desde meados da década de 1980, ainda é limitado no que diz respeito ao uso de informações biológicas para a avaliação e o monitoramento de ambientes aquáticos. Neste processo, o órgão licenciador (federal, estadual ou municipal) define as variáveis a serem medidas, tendo como referência o tipo e a magnitude do empreendimento e as características específicas do local proposto para sua instalação. Respostas biológicas devem ser usadas para medir os impactos sobre ecossistemas aquáticos e os macroinvertebrados constituem um grupo que apresenta vantagens como bioindicadores, sendo os mais utilizados para este fim. Em 2011, o Grupo de Trabalho Intersetorial em Biomonitoramento foi criado para discutir o uso de macroinvertebrados em programas de monitoramento. Este trabalho apresenta as reflexões e propostas deste grupo e fornece subsídios para a inclusão destes organismos nos termos de referência a serem aplicados nos processos de licenciamento ambiental no Brasil. Abstract: In Brazil, the environmental licensing process has many stages, and it was designed as a tool to identify the potential and to prevent environmental damages caused by enterprises. Although this procedure is required since the mid-1980s, it is still limited regarding the use of bioassessment and biomonitoring of aquatic ecosystems. In this process, the agency responsible for the licensing (federal, state or local) is the responsible for defining the parameters to be measured. Those parameters are required based on the type and magnitude of the project, and the specific environment and location proposed for its installation. We recommend that biological responses should be used to assess and monitor stressors on aquatic ecosystems. Macroinvertebrates have been used worldwide as bioindicators because they have some advantages over other biological groups for this purpose. In 2011, the ?Intersectoral Working Group on Biomonitoring? was created to discuss the use of macroinvertebrates in biomonitoring programs. This paper presents proposals and recommendations aiming to stimulate and provide guidance for the use of this group in the context of the environmental licensing process in Brazil. Resumen: En Brasil, el proceso de licenciamiento ambiental tiene varios niveles y etapas. Fue diseñado como una herramienta de prevención de posibles daños ambientales causados por la ejecución de proyectos. Aunque este procedimiento exista desde la década de 1980, siegue con limitaciones en relación al uso de la información biológica para la evaluación y control de los ecosistemas acuáticos. En este proceso, la agencia de licenciamiento (federal, estadual o local) es la que define las variables a mensurar en función del tipo y la magnitud del proyecto y las características específicas del lugar propuesto para su instalación. Las respuestas biológicas deben ser utilizadas para evaluar los impactos a los ambientes acuáticos, y el grupo de los macroinvertebrados tienen ventajas sobre otros grupos biológicos y son los más utilizados para este fin. En 2011, el ?Grupo de Trabajo Intersectorial de Biomonitoreo? fue creado para discutir el uso de los macro-invertebrados en los programas de monitoreo ambiental. Este artículo presenta reflexiones y propuestas de este grupo y ofrece subsidios para la inclusión de estos organismos en los términos de referencia que serán aplicados en el proceso de licenciamiento ambiental en Brasil.