Gtl
Mostrando 13-24 de 30 artigos, teses e dissertações.
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13. Global Evaluation of Energy Ways of Natural Gás Transport, as Well as Secondary Energy / Avaliação global dos modos energéticos de transporte do gás natural inclusive como energia secundária
O objetivo do trabalho é fazer a avaliação global de alguns dos modos energéticos de transporte do gás natural (gasodutos, GNL e GNC), inclusive como energia secundária (eletricidade e GTL). Para a escolha do melhor modo de transporte, além dos custos de cada projeto, serão considerados outros três fatores, que são: impactos ambientais, impactos so
Publicado em: 2007
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14. VALUATION OF XTL PLANTS PROJECT INVESTMENT BASED ON REAL OPTIONS THEORY / AVALIAÇÃO DE PROJETOS DE INVESTIMENTO EM PLANTAS XTL UTILIZANDO A TEORIA DE OPÇÕES REAIS
The objective of this dissertation is to value the operational flexibility that a GTL plant can offer at the entrance of the productive process where multiples inputs can be used as row material. Different products also can be produced. The real options theory is considered by the author as the most indicated financial methodology to value theses flexibiliti
Publicado em: 2007
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15. AvaliaÃÃo cinÃtico-operacional do processo de reforma autotÃrmica do metano
As grandes reservas de gÃs natural (GN) descobertas nos Ãltimos anos no Brasil apontam para um maior aproveitamento deste, seja de forma direta, como combustÃvel, a exemplo do gÃs natural veicular, seja de forma indireta, quando de sua reforma. A reforma do GN à uma rota promissora que leva à produÃÃo de gÃs de sÃntese (syngas) e/ou hidrogÃnio. O
Publicado em: 2007
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16. Efeito da temperatura de calcinação em catalisadores de platina a base de óxidos de cério e zircônio mássicos e suportados em alumina nas reações de oxidação parcial e reforma autotérmica do metano
The transformation of methane into higher value products became more important in recent years due to the search for new energy sources. The use of partial oxidation and autothermal reforming of methane can give synthesis gas with a H2/CO ratio of 2, that is very adequate for the Fischer-Tropsch synthesis. In order to develop this process, the use of catalys
Publicado em: 2006
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17. Validade do Inventário de Comportamentos Autísticos (ICA): estudo preliminar
OBJETIVO: Examinar a Validade Concorrente e a Validade de Critério do Inventário de Comportamentos Autísticos (ICA). MÉTODOS: Foram entrevistadas, com a escala, mães de crianças com diagnóstico de transtorno autista, previamente estabelecido por especialistas na área. Para comparação, foram também entrevistadas mães de crianças com transtorno de
Revista Brasileira de Psiquiatria. Publicado em: 2005-12
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18. A gestão local na reabilitação urbana de áreas centrais: os casos de Lisboa e São Paulo / Local management in the rehabilitation of urban central areas: the cases of Lisboa and São Paulo
Esta dissertação apresenta e analisa as experiências realizadas em São Paulo e Lisboa com reabilitação urbana de suas áreas centrais, degradadas fisicamente e habitadas por população provida de escassos recursos econômicos, com o objetivo de apontar aspectos limitantes e outros bem sucedidos na gestão do processo de reabilitação, do ponto de vis
Publicado em: 2005
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19. The Dlk1 and Gtl2 genes are linked and reciprocally imprinted
Genes subject to genomic imprinting exist in large chromosomal domains, probably reflecting coordinate regulation of the genes within a cluster. Such regulation has been demonstrated for the H19, Igf2, and Ins2 genes that share a bifunctional imprinting control region. We have identified the Dlk1 gene as a new imprinted gene that is paternally expressed. Fur
Cold Spring Harbor Laboratory Press.
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20. The trihelix DNA-binding motif in higher plants is not restricted to the transcription factors GT-1 and GT-2
GT-2 is a plant transcriptional activator that contains two separate, but similar, trihelix DNA-binding domains. GT-1 is similar to GT-2, although it contains only one of such domains. cDNAs that encode GT-2 were isolated from rice (OS-GT2) and Arabidopsis (AT-GT2). Evidence is presented for the existence of an Arabidopsis gene family that is structurally re
The National Academy of Sciences.
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21. Comparative Sequence Analysis of the Imprinted Dlk1–Gtl2 Locus in Three Mammalian Species Reveals Highly Conserved Genomic Elements and Refines Comparison with the Igf2–H19 Region
The Dlk1–Gtl2 domain on mouse chromosome 12 contains reciprocally imprinted genes with the potential to contribute to our understanding of common features involved in imprinting control. We have sequenced this conserved region in the mouse and sheep and included the human sequence in a three species comparison. This analysis resulted in a precise conservat
Cold Spring Harbor Laboratory Press.
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22. Novel Imprinted DLK1/GTL2 Domain on Human Chromosome 14 Contains Motifs that Mimic Those Implicated in IGF2/H19 Regulation
The evolution of genomic imprinting in mammals occurred more than 100 million years ago, and resulted in the formation of genes that are functionally haploid because of parent-of-origin–dependent expression. Despite ample evidence from studies in a number of species suggesting the presence of imprinted genes on human chromosome 14, their identity has remai
Cold Spring Harbor Laboratory Press.
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23. Human–Ovine Comparative Sequencing of a 250-kb Imprinted Domain Encompassing the Callipyge (clpg) Locus and Identification of Six Imprinted Transcripts: DLK1, DAT, GTL2, PEG11, antiPEG11, and MEG8
Two ovine BAC clones and a connecting long-range PCR product, jointly spanning ∼250 kb and representing most of the MULGE5-OY3 marker interval known to contain the clpg locus, were completely sequenced. The resulting genomic sequence was aligned with its human ortholog and extensively annotated. Six transcripts, four of which were novel, were predicted to
Cold Spring Harbor Laboratory Press.
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24. Exercising Paternal Control♦: Defining Contributions of Paternally Methylated Imprinted Genes at the Igf2-H19 and Dlk1-Gtl2 Domains to Mouse Placentation by Transcriptomic Analysis
American Society for Biochemistry and Molecular Biology.