Equilibrium
Mostrando 1-12 de 5138 artigos, teses e dissertações.
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1. A Mathematical Model for Accessing Dengue Hemorrhagic Fever in Infants
ABSTRACT A mathematical model was developed to describe the dynamics of the primary infection of dengue virus in infants who were born to a mother immune to some serotype of the dengue virus. The model is given by a system of nonlinear ordinary differential equations with time-dependent variables for the number of dengue virus antibodies of the infant transf
Trends in Computational and Applied Mathematics. Publicado em: 2022
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2. Kinetic study and thermodynamic equilibrium modeling of the Co(II) and Mn(II) bioadsorption using the Rhodococcus opacus strain
Abstract Microbial biomass is considered a renewable and environmentally friendly resource. Thus, the research conducted a kinetic study and thermodynamic equilibrium modeling of the cobalt (Co) and manganese (Mn) bioadsorption process using the Rhodococcus opacus (RO) strain as a biosorbent. The inactive biomass subjected to 0.1 M NaOH pretreatment was brou
REM - International Engineering Journal. Publicado em: 2022
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3. ADSORPTION OF ATRAZINE IN RICE HUSK BIOCHARS: A PHENOMENOLOGICAL MODEL APPLIED TO EQUILIBRIUM AND KINETIC STUDIES
ABSTRACT Atrazine is an herbicide used to remove weeds in agricultural crops; however, because it is considered toxic, options for removing it from the environment are needed. Adsorption on biochar is an efficient technique for removing organic contaminants. In this study, the atrazine adsorption capacities of two biochars (BCA400 and BCA700) produced from r
Engenharia Agrícola. Publicado em: 2022
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4. On the semantic and methodological dimensions of equilibrium in economics
RESUMO Este artigo objetiva explicitar algumas das diferentes aplicações da noção de equilíbrio nas mais diversas abordagens econômicas e estabelecer certa ordem na miríade de interpretações existentes, através de um esforço de classificação em duas dimensões: (i) semântica, que trata do significado da noção de equilíbrio nos diferentes con
Brazilian Journal of Political Economy. Publicado em: 2022
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5. Aprendizagem cooperativa e colaborativa no ensino de equilíbrio químico a calouros
COOPERATIVE AND COLLABORATIVE LEARNING TO TEACH CHEMICAL EQUILIBRIUM TO FRESHMAN STUDENTS. This paper describes cooperative (jigsaw) and collaborative activities (Peer-Led Team Learning) carried out in the BSc degree in Chemistry at the São Carlos Institute of Chemistry, the University of São Paulo, Brazil. The dynamics of discursive interactions establish
Química Nova. Publicado em: 2022
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6. Current account equilibrium exchange rate in Colombia (2000-2020)
RESUMO Utilizando estimativas de Bresser-Pereira et al. (2021), este artigo analisa o desalinhamento entre a taxa de câmbio real e a taxa de câmbio de equilíbrio em conta-corrente na Colômbia nas últimas duas décadas (2000-2020). Evidências sugerem que o ciclo de alta e queda das commodities neste período é importante para explicar (i) a principal t
Brazilian Journal of Political Economy. Publicado em: 2022
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7. Current account and real exchange rate equilibrium: the case of manufacturing in Mexico, 2001-2019
RESUMO Neste artigo, seguimos Bresser-Pereira et al. (2021) e estimar para o México uma série da taxa de câmbio real (RER) que equilibra a conta-corrente do México para o período 2001q1-2019q4. Neste processo, levamos em consideração vários determinantes, incluindo variáveis de política e indicadores financeiros, a evolução dos termos de troca, b
Brazilian Journal of Political Economy. Publicado em: 2022
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8. Current equilibrium exchange rate: methodology and estimations for Latin American countries
RESUMO Este artigo propõe uma metodologia para a estimação da taxa de câmbio de equilíbrio em conta-corrente - a taxa de câmbio que garante o equilíbrio intertemporal da conta-corrente de um país. Além disso, a metodologia é testada através de técnicas econométricas apropriadas (Modelos VECM) para Argentina, Brasil, Chile e Colômbia, usando dad
Brazilian Journal of Political Economy. Publicado em: 2022
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9. ROBÓTICA EDUCACIONAL, ENSINO DE QUÍMICA E APRENDIZAGEM COOPERATIVA: UMA PROPOSTA PARA O CURSO DE ENSINO SUPERIOR EM ENGENHARIA CIVIL
Students, generally, are afraid of studying chemistry because they understand that it is a very complex area of knowledge and that it doesn’t has use in daily lives and in intended profession, which is a problem we identified in a Civil Engineering course. With this, we proposed a project in this course, based on educational robotics and educational cooper
Química Nova. Publicado em: 2022
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10. Dispersive Solid-Phase Extraction Using 3-Mercaptopropyltrimethoxysilane Functionalized Magnetic MWCNT-Based Nanocomposite for Selective and Efficient Preconcentration of Pb2+ with FAAS Determination
A novel nanocomposite based on magnetic multiwalled carbon nanotubes coated with SiO2 and functionalized with 3-mercaptopropyltrimethoxysilane (3-MPTMS) was prepared for the efficient extraction and quantification of lead ions from water samples. The adsorption capacity of this adsorbent could reach 1.995 mg g-1 Pb2+ in an equilibrium time of 30 min. Under o
Journal of the Brazilian Chemical Society. Publicado em: 2022
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11. SORPTION, DESORPTION, HALF-LIFE AND LEACHING OF SULFOMETURON-METHYL IN DIFFERENT SOIL CLASSES
RESUMO Entender o comportamento dos herbicidas no solo pode contribuir para adequação da dose correta para o controle das plantas daninhas eficiente com menor impacto ambiental. Nesta pesquisa, buscou-se avaliar os fatores envolvidos nos processos de sorção, dessorção, meia-vida e lixiviação do sulfometuron-methyl em três classes de solo: Cambissolo
Revista Caatinga. Publicado em: 2022
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12. Osmotic dehydration kinetics of fresh and frozen blueberries considering volume shrinkage in a novel ternary solution
Abstract Osmotic dehydration is a nonthermal processing technology, that is limited in blueberries because of the osmotic agent, temperature and efficiency. This study was to prepare a novel ternary solution considering low-sugar, low-salt and low-viscosity requirements and to dehydrate blueberries at 20 °C. The mass transfer kinetics of fresh and frozen bl
Food Sci. Technol. Publicado em: 2021-09