Upscaling
Mostrando 1-12 de 12 artigos, teses e dissertações.
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1. PHYTOTOXIC CONSTITUENTS FROM ENDOPHYTIC FUNGUS Xylaria cubensis ASSOCIATED WITH Eugenia brasiliensis
The upscaling of Xylaria cubensis, an endophyte of Eugenia brasiliensis (Myrtaceae), in PDB medium led to the isolation of known compounds including cytochalasin D (7) and cytochalasin C (8), which exhibited relatively higher phytotoxic activity in all the concentrations tested compared to the commercial herbicide GOAL®. Besides the aforementioned metabolit
Quím. Nova. Publicado em: 18/07/2019
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2. Effective transport properties for the pyridine-granular activated carbon adsorption system
In this work, the kinetics of pyridine adsorption onto granular activated carbon was studied from the point of view of an up-scaling process by using the method of volume averaging. The pore and surface effective diffusivities were estimated by supposing simple microscale geometries (ordered media of cylinders and spheres) and those of images processed from
Braz. J. Chem. Eng.. Publicado em: 2012-09
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3. In-Situ combustion : insights on field project and numerical simulation at laboratory and field scale / Combustão In-Situ : considerações sobre projeto e simulações numéricas em escala de laboratório e de campo
Behavior forecast of reservoirs subjected to in-situ combustion is hard and empirical since besides geological complexities it is necessary to reproduce complex fluid models and several chemical reactions that are part of the process. The work flow for field project usually involves: 1) reservoir screening; 2) thermo-analytical experiments; 3) combustion tub
Publicado em: 2010
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4. UtilizaÃÃo de mÃtodos de transferÃncia de escala na simulaÃÃo de recuperaÃÃo de hidrocarbonetos com aplicaÃÃo de computaÃÃo distribuÃda
A transferÃncia para uma escala maior (âupscalingâ), tem sido um mÃtodo muito utilizado no tratamento de informaÃÃes associadas a uma grande quantidade de dados, tornando-se uma opÃÃo ainda mais relevante quando o excesso destes dados representa uma dificuldade na sua manipulaÃÃo, levando à outras conseqÃÃncias tais como longo tempo de p
Publicado em: 2009
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5. FLOW OF EMULSIONS IN POROUS MEDIA: EXPERIMENTS AND CAPILLARY NETWORK MODEL / ESCOAMENTO DE EMULSÕES EM MEIOS POROSOS: EXPERIMENTOS E MODELO DE REDE DE CAPILARES
Objective: Transport of emulsions in porous media is relevant to several subsurface applications. Many enhanced oil recovery processes involve emulsion formation and their flow in some form. Modeling the flow of emulsion in porous media is extremely challenging. The available descriptions based on effective viscosity are not valid when the drop size is of th
Publicado em: 2009
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6. A new algorithm, of course parallelization, for the calculation of equivalent permeabilities in reservoirs / Um novo algoritmo, naturalmente paralelizável, para o cálculo de permeabilidades equivalentes em reservatórios
A new numerical method is proposed for the permeabilities upscaling take into consideration periodic boundary conditions. This method combines domain decomposition with mixed finite elements in discretization of the local problem of pressure-velocity necessary to meet the equivalent permeabilities.
Publicado em: 2008
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7. MODELAGEM SÍSMICA EM ARENITOS: EFEITO DA DISPERSÃO DA VELOCIDADE E DO TIPO DE FLUIDO / SANDSTONE SEISMIC MODELING: EFFECTS OF VELOCITY DISPERSION AND FLUID TYPE
The evaluation of reservoir dynamics during production through time-lapse interpretation has reached a substantial importance in the petroleum industry, mainly in sandstones. This evaluation presents many challenges, mainly concerned to unmask the overlapping of different effects in seismic data due to reservoir changes. Several factors affect seismic proper
Publicado em: 2008
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8. Impacto da modelagem estocastica no processo de caracterização de reservatorios maduros / Impact of the stochastic modeling on mature reservoirs characterization process
A consistent geologic modeling is necessary to evaluate the petroleum reservoirs. In mature field, a large amount of remaining oil exists and, many times, with good capacity of being recovered. For this, geostatistical techniques are used for construction of solid models that allow to locate and to quantify this remaining oil. In a reservoir characterization
Publicado em: 2005
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9. Multidimensional modelling and calculation of combustion in porous media
In contrast with household heating systems based on open combustion flames, burners based on premixed combustion in inert porous media are characterized by higher thermal efficiency and high turndown ratio allied with compacity of the units. Moreover, porous burners, where a flame is anchored inside a porous matrix, are associated with low pollutants formati
Publicado em: 2005
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10. Upscaled modeling in multiphase flow applications
In this paper we consider upscaling of multiphase flow in porous media. We propose numerical techniques for upscaling of pressure and saturation equations. Extensions and applications of these approaches are considered in this paper. Numerical examples are presented.
Computational & Applied Mathematics. Publicado em: 2004-12
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11. Modelagem estocastica de facies para caracterização da distribuição espacial das heterogeneidades de reservatorio
The genesis and properties of a depositionaI system can be understood by the use of facies modeIs, which permit the prediction of its spatial distribution and reservoir qualities. The qualitative approach associated to nurnerical data allows the quantification of flow units. The method presented herein is intended to translate geological data into nurnerical
Publicado em: 1992
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12. Transient expression of a tumor-specific single-chain fragment and a chimeric antibody in tobacco leaves
To evaluate the expression of different forms of a tumor-specific antibody in plants, we adapted a recently described Agrobacterium-mediated transient expression system. A recombinant single-chain Fv antibody (scFvT84.66) and a full-size mouse/human chimeric antibody (cT84.66) derived from the parental murine mAb T84.66 specific for the human carcinoembryoni
The National Academy of Sciences.