1000 resultados para Ciclo combinado com gasificação integrada
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Resumen basado en el de la publicación
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La experiencia did??ctica se desarrolla en el ??mbito de la asignatura Geograf??a Humana y Econ??mica del mundo actual, y est?? integrada en el Proyecto Atenea de aplicaci??n de las nuevas tecnolog??as de la informaci??n a la ense??anza. Los objetivos son: informar al alumno sobre las caracter??sticas de la caba??a de ganado fris??n en Cantabria; introducir al alumno en la metodolog??a de elaboraci??n de instrumentos de recogida de datos, en el desarrollo de un estudio de campo y en la aplicaci??n de las nuevas tecnolog??as en estas actividades. Tras la explicaci??n de los conceptos b??sicos de la ganaderia y la creaci??n de unos fundamentos te??ricos, se procede a la elaboraci??n colectiva de un cuestionario, que se aplica, por grupos, en las visitas realizadas a una granja de tecnolog??a avanzada y al Mercado Nacional de Ganado de Torrelavega (Cantabria). Con los datos obtenidos en este estudio, se crea una base de datos y se procede, de forma individual, a la elaboraci??n de un informe t??cnico. Los resultados de la experiencia did??ctica son evaluados de forma individual.
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El proyecto educativo que con esta obra iniciamos, está relacionado con la necesidad de expresar nuestras experiencias pedagógicas. Entendemos que el niño con una formación integrada, favorecida por la práctica musical, desarrollará criterios musicales creativos que le permitirán evolucionar en su actitud de recepción, tanto para la práctica musical activa, como la de oyente..
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Conocer tipos de juegos de patio en la región de Murcia de niños de entre los 6 a los 8 años de edad, la influencia familiar en su transmisión, la perdurabilidad de su transmisión oral y su aplicación didáctica dentro del aula. 204 personas de ambos sexos entrevistadas, de más de 70 años en su mayoría, y unos 700 alumnos (de 6 a 8 años) de un total de 76 centros seleccionados en toda la región. El total de la muestra asciende a unas 1000 personas. Establecimiento del marco teórico-conceptual procediéndose posteriormente al diseño. Se localizaron 11 zonas repartidas por toda la región, seleccionándose 76 centros de primaria. Se trabajó cada zona geográfica en dos niveles: centro de enseñanza y calle. En la recogida de datos se invirtió un año. Para el trabajo de campo se utilizaron dos estrategias: el vagabundeo y la construcción de mapas; la primera permitió el reconocimiento del marco físico de la institución o comunidad y el acercameinto a las personas que lo integran y la construcción de mapas permitió situar la información recogida en su dimensión social, espacial y temporal. En la última fase de la investigación se llevó a cabo una experiencia educativa en un centro docente creándose un taller de juego titulado 'El juego y la pelota' de metodología activa y participativa y cuyo objetivo fué el desarrollo del lenguaje de forma integrada. Observación en los patios de recreo de los juegos de los niños. Diario de observación y registro de observación escrito y sonoro con categorías previamente definidas y unidades de observación. Entrevistas informales o abiertas en la calle registradas en cinta magnetofónica con identificación y anotaciones en cuaderno de campo. Taller de juego. Investigación cualitativa de carácter etnográfico-educativo. La recuperación de los juegos tradicionales ha servido para mejorar la expresión oral de los alumnos y enriquecer su vocabulario.
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Neste trabalho apresenta-se um método de desenvolvimento integrado baseado no paradigma de orientação a objetos, que visa abordar todo o ciclo de desenvolvimento de uma aplicação tempo real. Na fase de especificação o método proposto baseia-se no uso de restrições temporais padronizadas pelo perfil da UML-TR, sendo que uma alternativa de mapeamento destas restrições para o nível de programação é apresentada. Este mapeamento serve para guiar a fase de projeto, onde utilizou-se como alvo a interface de programação orientada a objetos denominada TAFT-API, a qual foi projetada para atuar junto ao ambiente de execução desenvolvido no âmbito desta tese. Esta API é baseada na especificação padronizada para o Java-TR. Este trabalho também discute o ambiente de execução para aplicações tempo real desenvolvido. Este ambiente faz uso da política de escalonamento tolerante a falhas denominada TAFT (Time-Aware Fault- Tolerant). O presente trabalho apresenta uma estratégia eficiente para a implementação dos conceitos presentes no escalonador TAFT, que garante o atendimento a todos os deadlines mesmo em situações de sobrecarga transiente. A estratégia elaborada combina algoritmos baseados no Earliest Deadline, sendo que um escalonador de dois níveis é utilizado para suportar o escalonamento combinado das entidades envolvidas. Adicionalmente, também se apresenta uma alternativa de validação dos requisitos temporais especificados. Esta alternativa sugere o uso de uma ferramenta que permite uma análise qualitativa dos dados a partir de informações obtidas através de monitoração da aplicação. Um estudo de caso baseado em uma aplicação real é usado para demonstrar o uso da metodologia proposta.
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O presente relatório incorpora os pressupostos teóricos e metodológicos que serviram de orientação a toda a prática pedagógica desenvolvida nas vertentes de Pré-Escolar e de 1.º Ciclo do Ensino Básico, no Infantário “O Girassol” e na EB1/PE da Pena, respetivamente. É salientada a investigação-ação como metodologia essencial à práxis, uma vez que permite ao docente desempenhar o papel de investigador ao refletir sobre aquilo que compreende e aplica aquando do processo de ensino-aprendizagem. Esta metodologia prende-se, portanto, no constante questionamento por parte do docente, construíndo uma aprendizagem construtivista, participativa e ativa, sendo os alunos os principais atores na busca do conhecimento. As estratégias desenvolvidas ao longo de ambos os estágios alicerçaram-se numa aprendizagem integrada, estimulante e significativa, de forma a respeitar os ritmos e formas de aprendizagem de cada criança, proporcionando-lhes situações variadas, que fossem ao encontro das suas necessidades e interesses. Por fim, a intervenção com a comunidade educativa revelou-se, igualmente, produtiva, uma vez que deu aso a diversos momentos de trabalho colaborativo. Concisamente, este relatório traduz todo o percurso realizado ao longo de duas intervenções pedagógicas, que permitiram dar continuidade à construção de uma identidade profissional, que deve ser realizada ao longo de toda a experiência profissional docente.
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The studied region, named Forquilha and localized in northwestern Central Ceará domain (northern portion of Borborema Province), presents a lithostratigraphic framework constituted by paleoproterozoic metaplutonics, metasedimentary sequences and neoproterozoic granitoids. The metasedimentary rocks of Ceará group occupy most part of the area. This group is subdivided in two distinct units: Canindé and Independência. Canindé unit is represented basically by biotite paragneisses and muscovite paragneisses, with minor metabasic rocks (amphibolite lens). Independência sequence is composed by garnetiferous paragneisses, sillimanite-garnet-quartz-muscovite schists and quartz-muscovite schists, pure or muscovite quartzites and rare marbles. At least three ductile deformation events were recognized in both units of Ceará group, named D1, D2 and D3. The former one is interpreted as related to a low angle tangential tectonics which mass transport is southward. D2 event is marked by the development of close/isoclinal folds with a N-S oriented axis. Refolding patterns generated by F1 and F2 superposition are found in several places. The latest event (D3) corresponds to a transcurrent tectonics, which led to development of mega-folds and several shear zones, under a transpressional regime. The mapped shear zones are Humberto Monte (ZCHM), Poço Cercado (ZCPC) and Forquilha (ZCF). Digital image processing of enhanced Landsat 7-ETM+ satellite images, combined with field data, demonstrate that these penetrative structures are associated with positive and negative geomorphologic patterns, distributed in linear and curvilinear arrangements with tonal banding, corresponding to the ductile fabric and to crests. Diverse color composites were tested and RGB-531 and RGB-752 provided the best results for lineament analysis of the most prominent shear zones. Spatial filtering techniques (3x3 and 5x5 filters) were also used and the application of Prewitt filters generated the best products. The integrated analysis of morphological and textural aspects from filtered images, variation of tonalities related to the distribution of geologic units in color composites and the superposition over a digital elevation model, contributed to a characterization of the structural framework of the study area. Kinematic compatibility of ZCHM, ZCPC, ZCF shear zones, as well as Sobral-Pedro II (ZCSPII) shear zone, situated to the west of the study area, was one of the goal of this work. Two of these shear zones (ZCHM, ZCPC) display sinistral movements, while the others (ZCSPII, ZCF) exhibit dextral kinematics. 40Ar/39Ar ages obtained in this thesis for ZCSPII and ZCPC, associated with other 40Ar/39Ar data of adjacent areas, indicate that all these shear zones are related to Brasiliano orogeny. The trend of the structures, the opposite shear senses and the similar metamorphic conditions are fitted in a model based on the development of conjugate shear zones in an unconfined transpression area. A WNW-ESE bulk shortening direction is infered. The geometry and kinematic of the studied structures suggest that shortening was largely accommodated by lateral extrusion, with only minor amounts of vertical stretch
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This thesis deals with the tectonic-stratigraphic evolution of the Transitional Sequence in the Sergipe Sub-basin (the southern segment of the Sergipe-Alagoas Basin, Northeast Brazil), deposited in the time interval of the upper Alagoas/Aptian stage. Sequence boundaries and higher order internal sequences were identified, as well as the structures that affect or control its deposition. This integrated approach aimed to characterize the geodynamic setting and processes active during deposition of the Transitional Sequence, and its relations with the evolutionary tectonic stages recognized in the East Brazilian Margin basins. This subject addresses more general questions discussed in the literature, regarding the evolution from the Rift to the Drift stages, the expression and significance of the breakup unconformity, the relationships between sedimentation and tectonics at extensional settings, as well as the control on subsidence processes during this time interval. The tectonic-stratigraphic analysis of the Transitional Sequence was based on seismic sections and well logs, distributed along the Sergipe Sub-basin (SBSE). Geoseismic sections and seismic facies analysis, stratigraphic profiles and sections, were compiled through the main structural blocks of this sub-basin. These products support the depositional and tectonic-stratigraphic evolutionary models built for this sequence. The structural analysis highlighted similarities in deformation styles and kinematics during deposition of the Rift and Transitional sequences, pointing to continuing lithospheric extensional processes along a NW trend (X strain axis) until the end of deposition of the latter sequence was finished by the end of late Aptian. The late stage of extension/rifting was marked by (i) continuous (or as pulses) fault activity along the basin, controling subsidence and creation of depositional space, thereby characterizing upper crustal thinning and (ii) sagstyle deposition of the Transitional Sequence at a larger scale, reflecting the ductile stretching and thinnning of lower and sub crustal layers combined with an increasing importance of the thermal subsidence regime. Besides the late increments of rift tectonics, the Transitional Sequence is also affected by reactivation of the border faults of SBSE, during and after deposition of the Riachuelo Formation (lower section of the Transgressive Marine Sequence, of Albian age). It is possible that this reactivation reflects (through stress propagation along the newlycreated continental margin) the rifting processes still active further north, between the Alagoas Sub-basin and the Pernambuco-Paraíba Basin. The evaporitic beds of the Transitional Sequence contributed to the development of post-rift structures related to halokinesis and the continental margin collapse, affecting strata of the overlying marine sequences during the Middle Albian to the Maastrichtian, or even the Paleogene time interval. The stratigraphic analysis evidenced 5 depositional sequences of higher order, whose vertical succession indicates an upward increase of the base level, marked by deposition of continental siliciclastic systems overlain by lagunar-evaporitic and restricted marine systems, indicating that the Transitional Sequence was deposited during relative increase of the eustatic sea level. At a 2nd order cycle, the Transitional Sequence may represent the initial deposition of a Transgressive Systems Tract, whose passage to a Marine Transgressive Sequence would also be marked by the drowning of the depositional systems. At a 3rd order cycle, the sequence boundary corresponds to a local unconformity that laterally grades to a widespread correlative conformity. This boundary surface corresponds to a breakup unconformity , being equivalent to the Pre-Albian Unconformity at the SBSE and contrasting with the outstanding Pre-upper Alagoas Unconformity at the base of the Transitional Sequence; the latter is alternatively referred, in the literature, as the breakup unconformity. This Thesis supports the Pre-Albian Unconformity as marker of a major change in the (Rift-Drift) depositional and tectonic setting at SBSE, with equivalent but also diachronous boundary surfaces in other basins of the Atlantic margin. The Pre-upper Alagoas Unconformity developed due to astenosphere uplift (heating under high lithospheric extension rates) and post-dates the last major fault pulse and subsequent extensive block erosion. Later on, the number and net slip of active faults significantly decrease. At deep to ultra deep water basin segments, seaward-dipping reflectors (SDRs) are unconformably overlain by the seismic horizons correlated to the Transitional Sequence. The SDRs volcanic rocks overly (at least in part) continental crust and are tentatively ascribed to melting by adiabatic decompression of the rising astenospheric mantle. Even though being a major feature of SBSE (and possibly of other basins), the Pre-upper Alagoas Unconformity do not correspond to the end of lithospheric extension processes and beginning of seafloor spreading, as shown by the crustal-scale extensional structures that post-date the Transitional Sequence. Based on this whole context, deposition of the Transitional Sequence is better placed at a late interval of the Rift Stage, with the advance of an epicontinental sea over a crustal segment still undergoing extension. Along this segment, sedimentation was controled by a combination of thermal and mechanical subsidence. In continuation, the creation of oceanic lithosphere led to a decline in the mechanical subsidence component, extension was transferred to the mesoceanic ridge and the newly-formed continental margin (and the corresponding Marine Sequence) began to be controlled exclusively by the thermal subsidence component. Classical concepts, multidisciplinary data and new architectural and evolutionary crustal models can be reconciled and better understood under these lines
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Incluye Bibliografía
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Incluye Bibliografía
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Incluye bibliografía.
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Este documento forma parte de la "Trilogía de la Igualdad"
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Pós-graduação em Engenharia Civil e Ambiental - FEB
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Particularmente de gases industriais, biogás e demais condições que exijam a purificação de gases antes de sua emissão para a atmosfera, visando a remoção de H~ 2~S, através da reação de oxidação deste gás com uma solução de íons Fe^ 3+^ produzidos por células imobilizadas de Acidithiobacillus ferrooxidans, uma bactéria quimioautotrófica e acidofílica, oxidante de ferro e formas reduzidas de enxofre. Como resultado do processo de oxidação do H~ 2~S pelos íons Fe^ 3+^ ocorre a produção de enxofre elementar (elemento recuperável no processo) e de íons Fe^ 2+^, os quais são re-oxidados pela bactéria à íons Fe^ 3+^ . Este reagente retorna então ao sistema para um novo ciclo de oxidação do H~ 2~S.
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Pós-graduação em Ciências da Motricidade - IBRC