Multicomponent Transport
Mostrando 1-12 de 15 artigos, teses e dissertações.
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1. The uncertainty effects of deformation bands on fluid flow
Reservoir fractures and deformation bands are capable of affecting fluid flow and storage in a variety of ways. In terms of flow effects, we typically encounter an unchanged or increased permeability when considering flow parallel to a fracture, whereas we expect a noticeably reduced permeability when considering flow across (perpendicular to) a deformation
Computational & Applied Mathematics. Publicado em: 2009
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2. MODELLING AND NUMERICAL SIMULATION OF THE TWO PHASES FLUX AND TRANSPORT MULTICOMPONENT IN THE POROUS MEDIUM WITH NO ISOTERMIC-CHEMICAL INTERACTION / MODELAGEM E SIMULAÇÃO NUMÉRICA DO FLUXO BIFÁSICO E DO TRANSPORTE MULTICOMPONENTE EM MEIOS POROSOS COM INTERAÇÃO TERMO-QUÍMICA
Este trabalho apresenta o estágio atual do desenvolvimento de uma ferramenta numérica para simulação e análise do fluxo bifásico e do transporte multicomponente e de calor em meios porosos com interação química em duas dimensões. O programa desenvolvido foi baseado no UNSATCHEM_2D escrito em linguagem Fortran. A discretização das equações difer
Publicado em: 2004
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3. Glucose transport in Trichoderma reesei: structural and functional characterization of the Trhxt1 and Trhxt2 genes / Transporte de glicose em Trichoderma reesei: caracterização estrutural e funcional dos genes Trhxt1 e Trhxt2
The filamentous fungus Trichoderma reesei is a natural soil inhabitant capable of metabolizing a vast number of polysaccharide substrates. In this work, we describe two genes of T. reesei, named Trhxt1 and Trhxt2, which code for proteins with significant similarities to glucose transporters from other fungi. These genes were identified in an EST database of
Publicado em: 2002
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4. Multicomponent analysis of amino acid transport in human lymphocytes. Diminished L-system transport in chronic leukemic B lymphocytes.
We have examined the amino acid transport in B cell chronic lymphocytic leukemia and compared it with the amino acid transport in isolated B lymphocytes from human blood and tonsils. L-system transport was measured with 2-amino-2-carboxy-bicyclo (2,2,1)-heptane, which is a synthetic amino acid whose transport is limited to the L-system. Amino acid uptake was
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5. Integration of splicing, transport and translation to achieve mRNA quality control by the nonsense-mediated decay pathway
When pre-mRNAs are spliced, a multi-component complex is deposited onto them, close to the sites of intron removal. New findings suggest that these exon-exon junction complexes and the complexes that bind mRNA caps are key effectors of the fate of spliced mRNAs and may regulate whether mRNAs containing premature stop codons are degraded.
BioMed Central.
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6. Oxidation of biphenyl by a multicomponent enzyme system from Pseudomonas sp. strain LB400.
Pseudomonas sp. strain LB400 grows on biphenyl as the sole carbon and energy source. This organism also cooxidizes several chlorinated biphenyl congeners. Biphenyl dioxygenase activity in cell extract required addition of NAD(P)H as an electron donor for the conversion of biphenyl to cis-2,3-dihydroxy-2,3-dihydrobiphenyl. Incorporation of both atoms of molec
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7. Yeast Sec23p acts in the cytoplasm to promote protein transport from the endoplasmic reticulum to the Golgi complex in vivo and in vitro.
The SEC23 gene product (Sec23p) is required for transport of secretory, plasma membrane, and vacuolar proteins from the endoplasmic reticulum to the Golgi complex in Saccharomyces cerevisiae. Molecular cloning and biochemical characterization demonstrate that Sec23p is an 84 kd unglycosylated protein that resides on the cytoplasmic surface of a large structu
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8. Computer-assisted nonlinear regression analysis of the multicomponent glucose uptake kinetics of Saccharomyces cerevisiae.
The kinetics of glucose uptake in Saccharomyces cerevisiae are complex. An Eadie-Hofstee (rate of uptake versus rate of uptake over substrate concentration) plot of glucose uptake shows a nonlinear form typical of a multicomponent system. The nature of the constituent components is a subject of debate. It has recently been suggested that this nonlinearity is
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9. High-affinity transport of glutathione is part of a multicomponent system essential for mitochondrial function.
Glutathione, an essential cellular antioxidant required for mitochondrial function, is not synthesized by mitochondria but is imported from the cytosol. Rat liver mitochondria have a multicomponent system that underlies the remarkable ability of mitochondria to take up and retain glutathione. At external glutathione levels of less than 1 mM, glutathione is t
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10. Three transport systems for the osmoprotectant glycine betaine operate in Bacillus subtilis: characterization of OpuD.
The accumulation of the osmoprotectant glycine betaine from exogenous sources provides a high degree of osmotic tolerance to Bacillus subtilis. We have identified, through functional complementation of an Escherichia coli mutant defective in glycine betaine uptake, a new glycine betaine transport system from B. subtilis. The DNA sequence of a 2,310-bp segmen
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11. Inner clot diffusion and permeation during fibrinolysis.
A model of fibrinolysis was developed using multicomponent convection-diffusion equations with homogeneous reaction and heterogeneous adsorption and reaction. Fibrin is the dissolving stationary phase and plasminogen, tissue plasminogen activator (tPA), urokinase (uPA), and plasmin are the soluble mobile species. The model is based on an accurate molecular d
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12. Nucleotide sequence analysis of genes encoding a toluene/benzene-2-monooxygenase from Pseudomonas sp. strain JS150.
It was previously shown by others that Pseudomonas sp. strain JS150 metabolizes benzene and alkyl- and chloro-substituted benzenes by using dioxygenase-initiated pathways coupled with multiple downstream metabolic pathways to accommodate catechol metabolism. By cloning genes encoding benzene-degradative enzymes, we found that strain JS150 also carries genes