Power Regeneration
Mostrando 13-24 de 29 artigos, teses e dissertações.
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13. Use of the basal palm of peach palm in alternative to the foliaceous palm, to increase the use of the palm tree Bactris gasipaes / Utilização do palmito basal de pupunha em alternativa ao palmito foliar, visando aumentar o aproveitamento da palmeira Bactris gasipaes
The palm can be obtained from several palms trees. Besides of high rate of exploration of Euterpe palms trees and his low regeneration power, there is a lack of product in the consumer market. More precocious palms trees and which produce good palm heart have been investigated, one of them is the peach palm (Bactris gasipaes), native of Amazon region that pr
Publicado em: 2008
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14. Morfogênese in vitro e transformação genética de citros mediada por Agrobacterium tumefaciens / Morphogenesis in vitro and Agrobacterium tumefaciens- mediated genetic transformation of citrus
Current protocols used for citrus genetic transformation have resulted in a low number of transgenic plants, furthermore, it used juvenile material which source of explants. Plants regenerated from these sources of explants have long juvenile periods for initial fruit production and are necessary many years for evaluation of the introduced characteristics of
Publicado em: 2008
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15. Efeitos da inibição da protoporfirinogênio IX oxidase sobre as trocas gasosas e fluorescência da clorofila a em plantas de soja (Glycine max L. Merrill) / Effects of inhibition of protoporphyrinogen oxidase IX on gas exchange and chlorophyll fluorescence of soybean plants (Glycine max L. Merrill)
The photosynthetic fixation of CO2 depends on the capture of light energy by the harvest complex (chlorophyll b and carotenoids), which transfer the energy to the photosystems reaction centers (chlorophyll a). The electrons transfer chain established between the photosystems generates reducing power necessary for the CO2 fixation in the Calvin cycle. The int
Publicado em: 2008
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16. In vitro culture and somatic embryogenesis of zygotic embryos of macaúba (Acrocomia aculeata (Jacq). Loddiges) / Cultivo in vitro e embriogênese somática de embriões zigóticos de macaúba (Acrocomia aculeata (Jacq). Loddiges)
The objectives of this work were to propose the proceeds regarding the culture of embryos and induction of somatic embryogenesis of the Acrocomia aculeata palm tree using as explants source the mature and immature zygotic embryos. In the in vitro embryo culture the following were studied: a) the effect of the incubation conditions and of the activated charco
Publicado em: 2008
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17. Projeto de um inversor trifásico com snubber de undeland regenerativo e controle digital implementado no DSP TMS320F2812
This work deals with the design and implementation of the digital instantaneous averaged values control for output voltages of the three-phase inverter with Underlands snubber, using the Buck-Boost converter for regeneration of the snubbers energy. The qualitative and quantitative analysis of the inverter power structure, snubber and auxiliary converter, as
Publicado em: 2007
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18. Reconstruction of bone defects with calcium phosphate ceramic or low-power laser / Reconstrução de defeitos osseos com ceramica de fosfato de calcio ou laserterapia de baixa energia associado a procedimento de enxertia
Procedures that allow the reconstruction and speed up the bone repair are of great clinical importance. Being thus, considering the advantages offered for the biomaterials as substitute to the autogenous bone graft and the positive effect of the low-power-laser in the process bone regeneration, the proposals of the present work had been to study the contribu
Publicado em: 2006
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19. Projeto de um retificador trifásico regenerativo com elevado fator de potência e controle em coordenadas dq0 implementado no DSP TMS320F2812
This work presents the design of a regenerative three-phase switching rectifier with high power factor and control in dq0 coordinates implemented on DSP TMS320F2812 of Texas InstrumentsTM. The controls have used the Clark and Park transformations and the bilinear equation of Tustin, so that the design of the digitals controllers, carried through on the frequ
Publicado em: 2006
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20. Separação adsortiva de misturas etanol-água por processo PSA.
The ethanol is one of the most well-known and diffused fuels sources in nowadays, therefore the domain of its technology has a great importance to the producer countries. Beyond it is in general, lesser expensive than the major part of the petrochemical fuels, the ethanol has its origin in the renewable sources that becomes Brazil in a world power on its pro
Publicado em: 2005
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21. On the regeneration of the actin-myosin power stroke in contracting muscle.
The transient behavior of muscle in double-or multiple-step length perturbations [Lombardi, V., Piazzesi, G. & Linari, M. (1992) Nature (London) 355, 638-641] is simulated with a "conventional" cross-bridge model, which has been reported [Eisenberg, E., Hill, T. L. & Chen, Y. (1980) Biophys. J. 29, 195-227] to account for many mechanical, as well as biochemi
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22. Regeneration of Magnesium-2,4-Divinylpheoporphyrin a5 (Divinyl Protochlorophyllide) in Isolated Developing Chloroplasts 1
A preparation of developing chloroplasts isolated from greening cucumber (Cucumis sativus L. var Beit Alpha) cotyledons was found capable of synthesizing divinyl protochlorophyllide (magnesium-2,4-divinylpheoporphyrin a5) in the presence of glutamate, adenosine triphosphate, reducing power, S-adenosyl-l-methionine, and molecular oxygen. Both adenosine tripho
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23. Whole-body protochordate regeneration from totipotent blood cells.
Cell differentiation, tissue formation, and organogenesis are fundamental patterns during the development of multicellular animals from the dividing cells of fertilized eggs. Hence, the complete morphogenesis of any developing organism of the animal kingdom is based on a complex series of interactions that is always associated with the development of a blast
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24. Planarian homeobox genes: cloning, sequence analysis, and expression.
Freshwater planarians (Platyhelminthes, Turbellaria, and Tricladida) are acoelomate, triploblastic, unsegmented, and bilaterally symmetrical organisms that are mainly known for their ample power to regenerate a complete organism from a small piece of their body. To identify potential pattern-control genes in planarian regeneration, we have isolated two homeo