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Mostrando 1-12 de 14 artigos, teses e dissertações.
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1. Controle deadbeat codificado sem fio de potências para aerogeradores de indução duplamente alimentados visando aplicações em redes inteligentes
As redes inteligentes utilizam uma avançada infraestrutura de telecomunicações para promover o gerenciamento de toda a geração, transmissão e armazenagem de energia sobre uma região de maneira muito mais eficiente do que é feito hoje em dia. Entretanto, nas redes inteligentes, a utilização de tecnologias de comunicação sem fio para a transmissão
Sba Controle & Automação. Publicado em: 2012-10
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2. CONTRIBUIÇÃO AO ESTUDO DO GERADOR DE INDUÇÃO DUPLAMENTE ALIMENTADO: OPERAÇÃO DURANTE DISTÚRBIOS NA REDE ELÉTRICA / CONTRIBUTION TO STUDY OF DOUBLY-FED INDUCTION GENERATORS: OPERATION UNDER NETWORK DISTURBANCES
Turbinas eólicas modernas que utilizam o Gerador de Indução Duplamente Alimentado (GIDA) são amplamente empregadas para geração de energia elétrica. Essa grande parcela de aero-geradores baseados na tecnologia GIDA e técnicas de controle vetorial clássicas já comprovaram ao longo dos últimos anos que este conceito apresenta méritos e foi capaz de
Publicado em: 2010
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3. Controle do fluxo de potencia do gerador de indução duplamente alimentado funcionando na velocidade subsincrona / Power flux control of doubly fed induction generator operating at sub-synchronous speeds
Esta tese trata da implementação do controle do fluxo de potência de um gerador de indução duplamente alimentado conectado ao barramento infinito. A orientação de fluxo do estator é utilizada, pois permite o controle, de forma independente, das potências ativa e reativa do estator, por meio das componentes de eixo direto e em quadratura da corrente
Publicado em: 2008
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4. Text not informed by the author. / Área depressora gigantocelular (GiDA): Eferências espinais
Text not informed by the author.
Publicado em: 2007
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5. Influencia da posição e do numero de muflas no microondas sobre a liberação de monomero residual, dureza de superficie e porosidade da resina acrilica Acron MC
In attempt to save working time, microwave-polymerized dentures can be processed simultaneously. However, little concern exists about possible uneven acrylic resin polymerization when inserting multiple flasks in a microwave oven. Thus, this .study evaluated the effect of number and position of flasks in the monomer release, Knoop hardness and porosity of a
Publicado em: 2001
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6. Global Regulation by gidA in Pseudomonas syringae
Analysis of two virulence mutants of Pseudomonas syringae B728a revealed that the Tn 5 sites of insertion were within the gidA open reading frame (ORF). These mutations were pleiotropic, affecting diverse phenotypic traits, such as lipodepsipeptide (syringomycin and syringopeptin) antibiotic production, swarming, presence of fluorescent pigment, and virulenc
American Society for Microbiology.
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7. Molecular Characterization of a Glucose-Inhibited Division Gene, gidA, That Regulates Cytotoxic Enterotoxin of Aeromonas hydrophila
By using a mini-transposon, we obtained two mutated strains of a diarrheal isolate, SSU, of Aeromonas hydrophila that exhibited a 50 to 53% reduction in the hemolytic activity and 83 to 87% less cytotoxic activity associated with the cytotoxic enterotoxin (Act). Act is a potent virulence factor of A. hydrophila and has been shown to contribute significantly
American Society for Microbiology.
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8. Characterization of Helicobacter pylori dapE and construction of a conditionally lethal dapE mutant.
Helicobacter pylori colonizes the human gastric mucosa and causes gastritis, ulceration, or gastric cancer. A previously uncharacterized region of the H. pylori genome was identified and sequenced. This region includes a putative operon containing three open reading frames termed gidA (1,866 bp), dapE (1,167 bp), and orf2 (753 bp); the gidA and dapE products
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9. Crystallization and preliminary X-ray diffraction analysis of the tRNA-modification enzyme GidA from Aquifex aeolicus
A. aeolicus GidA has been crystallized in two different crystal forms: forms I and II. X-ray diffraction data were collected to 3.2 and 2.3 Å resolution, respectively, using a synchrotron-radiation source.
International Union of Crystallography.
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10. Translational misreading: a tRNA modification counteracts a +2 ribosomal frameshift
Errors during gene expression from DNA to proteins via transcription and translation may be deleterious for the functional maintenance of cells. In this paper, extensive genetic studies of the misreading of a GA repeat introduced into the lacZ gene of Escherichia coli indicate that in this bacteria, errors occur predominantly by a +2 translational frameshift
Cold Spring Harbor Laboratory Press.
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11. Characterization of Lactococcus lactis UV-sensitive mutants obtained by ISS1 transposition.
Studies of cellular responses to DNA-damaging agents, mostly in Escherichia coli, have revealed numerous genes and pathways involved in DNA repair. However, other species, particularly those which exist under different environmental conditions than does E. coli, may have rather different responses. Here, we identify and characterize genes involved in DNA rep
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12. Novel Temperature-Sensitive Mutants of Escherichia coli That Are Unable To Grow in the Absence of Wild-Type tRNA6Leu
Escherichia coli has only a single copy of a gene for tRNA6Leu (Y. Komine et al., J. Mol. Biol. 212:579–598, 1990). The anticodon of this tRNA is CAA (the wobble position C is modified to O2-methylcytidine), and it recognizes the codon UUG. Since UUG is also recognized by tRNA4Leu, which has UAA (the wobble position U is modified to 5-carboxymethylaminomet
American Society for Microbiology.