Disassembly
Mostrando 13-24 de 464 artigos, teses e dissertações.
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13. Série histórica da composição química de pilhas alcalinas e zinco-carbono fabricadas entre 1991 e 2009
Mn, Zn, Fe, Cd, Pb and Hg were determined in Zn-C and alkaline batteries manufactured along almost 20 years. After samples disassembly the electroactive components were treated with aqua regia in bath ice for 24 h. Metals were analyzed by ICP-OES. Zn and Mn amounts did not vary significantly. Fe amount decreased, specially after 2000. Hg, Cd and Pb amounts d
Química Nova. Publicado em: 2011
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14. Expression analysis of a set of genes related to the ripening of bananas and mangoes
During ripening many important physic-chemical changes contribute to fruit quality, and they are precisely determined by gene expression. Specific genes are essential to normal ripening; however, information on gene expression about the majority of tropical fruit, such as bananas and mangoes is limited. In this way, the present study was undertaken with the
Brazilian Journal of Plant Physiology. Publicado em: 2009
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15. Ecodesign : desenvolvimento de pictogramas para o auxílio da desmontagem de produtos
Partindo de questões da sustentabilidade ambiental voltadas para o ecodesign, esta pesquisa se propõe a desenvolver pictogramas para indicar os movimentos a serem realizados para que a pré-desmontagem - remoção da carcaça - de produtos, com junções snap-fits, seja feita. Para isso, agregou-se conhecimentos de design gráfico e de produto, a fim de co
Publicado em: 2009
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16. Flexibilizar, vulnerabilizar e precarizar : efeitos da desestruturação da vida dos trabalhadores brasileiros, sob as ordens do "mercado"
The research was based on the assumption that the uncertainty has been used as a technique, an instrument of power of the current stage of speculative capitalism to manufacture a docile mass subject to the most intense exploitation of the capital, living under uncertain conditions that produce a strong sense of fear of the future. Fear, expressed in the perm
Publicado em: 2008
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17. Análise de similares : contribuição ao desenvolvimento de uma metodologia de seleção de materiais e ecodesign
Com a crescente demanda por inovação e o fato dos produtos apresentarem cada vez mais uma vida útil reduzida, têm-se hoje a produção de um grande número de diferentes produtos, gerando resíduos e aumentando enormemente o volume dos lixões e aterros sanitários. Na busca por inovações deve-se seguir uma metodologia específica para que ela seja efi
Publicado em: 2008
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18. ANÃLISE DO PROGRAMA DE REQUALIFICAÃÃO URBANA E VALORIZAÃÃO AMBIENTAL DE CIDADES E SUA APLICABILIDADE NA REGIÃO DO VALE DO PARAÃBA / ANALYSIS OF URBAN RENEWAL PROGRAM AND ENVIRONMENTAL VALORIZATION AND ITS APPLICABILITY IN THE REGION OF THE PARAIBA VALLEY
This research aims to orient the actions of public policies regarding urban renewal and associated environmental valorization. Urban renewal seeks to recover the quality of the inhabited environment in order to improve the quality of human life. We cannot think about this without considering the natural landscape, which always interferes directly or indirect
Publicado em: 2007
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19. Desiccation tolerance and sensitivity in Medicago truncatula and Inga vera seeds
Orthodox seeds acquire desiccation tolerance (DT) during their development which enables them to pass through the phase of maturation drying by the end of their development and enter a state of quiescence. After harvesting, these seeds can be dried further and stored for the long-term without significant loss of viability. On the other hand, there are many s
Publicado em: 2006
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20. Adolescentes e jovens e suas bases de apoio :relações de amizade como suporte social no enfrentamento à violência
The purpose of this work is to map the family and community social supports for adolescents and young students from Bom Pastor Distric, West Zone of Natal/RN, as well as to describe how such resources are used by these individuaIs in that community. Social support refers not only to formal activities or organizations, but also to spontaneous or informal form
Publicado em: 2005
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21. The reaction entrance channel and isotopic composition of fragments in a dynamical and statistical multifragmentation regime
From the study of the Ni+Ni,Ag 30 MeV/nucleon dissipative midperipheral collisions, it has been possible to detect events in which Intermediate Mass Fragments (IMF) are emitted by two different sources with different mechanisms. The sources are: a) a quasi-projectile (QP) (and a quasi-target (QT)), with an excitation energy that leads to multifragmentation t
Brazilian Journal of Physics. Publicado em: 2004-09
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22. Processamento da pasta eletrolítica de pilhas usadas
This work presents a basic study on the processing of spent Zn/MnO2 and alkaline batteries in acid or basic media. Promising results were obtained after fusion with NaOH or KHSO4, which allowed a good separation between Mn from Zn and these metals from other metal components. Processing of spent batteries is a complex procedure, which includes disassembly of
Química Nova. Publicado em: 2003-08
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23. Drogas anti-VIH: passado, presente e perspectivas futuras
Currently available anti-HIV drugs can be classified into three categories: nucleoside analogue reverse transcriptase inhibitors (NRTIs), non-nucleoside reverse transcriptase inhibitors (NNRTIs) and protease inhibitors (PIs). In addition to the reverse transcriptase (RT) and protease reaction, various other events in the HIV replicative cycle can be consider
Química Nova. Publicado em: 2003-05
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24. Arquitetura de supervisão e controle de chão de fabrica baseada em componentes genericos
This work focuses on building architectures for shop fioar control, aiming at enhancing integration of shop fioor to the enterprise. Basic building blocks, called Generic Components, are developed. They can be combined to create control architectures. It is possible to define a building strategy, using the generic components and a project methodology, that s
Publicado em: 2001