Simultaneous Equation Models
Mostrando 1-12 de 13 artigos, teses e dissertações.
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1. Simultaneous Equations to Estimate Aboveground Biomass of Pinus caribaea var . hondurensis
ABSTRACT This study aimed to develop equations to predict the biomass of trunks, branches, needles and total individual biomass for Pinus caribaea var. hondurensis . A simultaneous equation system was also adjusted. Twenty (20) trees from the experimental area of the State University of Southwest Bahia (UESB), Vitória da Conquista, Bahia, Brazil, were meas
Floresta Ambient.. Publicado em: 26/07/2018
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2. On the development of the Navier-Stokes equation by Navier
After the work of Navier, the Navier-Stokes equation was re-obtained by different arguments by numerous investigators. We have chosen to revisit the approaches of Navier not only because they were pioneering, but also because, unexpectedly, by undergirding his theory on Laplace's new concept of molecular forces - thought to be capable of capturing the effect
Rev. Bras. Ensino Fís.. Publicado em: 30/11/2017
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3. The foreign capital flows and the behavior of stock prices at BM&FBovespa
The main purpose of this article is to investigate alternative explanations for the impact of foreign capital flows on Ibovespa returns, including: trend chasing, information contribution and mutual feedback. Daily data of the period between 2005 and 2012 are analyzed using simultaneous equation models which are estimated by ordinary least squares (OLS). Sev
BAR, Braz. Adm. Rev.. Publicado em: 2014-03
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4. Busca por estruturas causais no contexto de modelos mistos em genética quantitativa
Structural Equation Models (SEM) can be used to study recursive and simultaneous relationships in multivariate analyses. Nonetheless, the number of different recursive causal structures that can be used for fitting a SEM to multivariate data can be huge, even when only a few traits are considered. In recent applications of SEM in mixed model quantitative gen
Publicado em: 2010
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5. Determinantes da Composição do Endividamento das Empresas Brasileiras: a consideração da maturidade e da fonte de financiamento
In corporate finance field, there is a vast literature about the capital structure determinants. However, studies have focused on the differences between equity and debt, while the literature about debt structure (maturity and source) is relatively scarce. As such, this study aims to promote empirical research about characteristics that influence debt maturi
Publicado em: 2009
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6. Abordagens qualitativa e quantitativa de micro-bacias hidrográficas e áreas alagáveis de um compartimento do Médio Mogi-Superior/SP / Qualitative and quantitative approaches to the hydrographic microbasins and floodable areas of a compartment of the Mid-Upper Mogi Guaçu river, SP, Brazil
The search for tools that contribute to enhance the interpretation of information about the diverse uses of soil and their consequences on aquatic bodies is an important task, since the qualities of soil and water have always affected human civilization. The goal of the present work was to quantify, by a first approximation and based on existing data, the er
Publicado em: 2006
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7. Produção de petroleo por elevação a gas intermitente : simulação e analise dos metodos convencional e invertido / Petroleum production by intermittent gas lift: simulation and analysis of conventional and inverted methods
The intermittent gas lift is used in the oil industry to keep up a viable production from depleting reservoirs or low productivity wells. The cyclical pattern of the intermittent gas lift causes the dynamic behavior of the well to become complex, making it difficult to design and operate of such systems. Amongst the existing versions, the conventional (IGL)
Publicado em: 2004
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8. {Kinetic simulations to modeling events in space plasmas} / Simulação cinéticas para modelagens de fenômenos em plasma espaciais
- The purpose of this doctoral thesis is to study some phenomena in space plasma using theoretical models and computer simulation via particles. Firstly, we concentrate on studying the process involving nonlinear interactions among Langmuir, electromagnetic and ion acoustic waves, associated with type III solar radio bursts. Starting from the generalized Zak
Publicado em: 2004
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9. People management by the development of organizational commitment: a holistic and simultaneous approach of the determinants involved in the process / Gestão de pessoas pelo desenvolvimento do comprometimento organizacional: uma abordagem holística e simultânea dos determinantes envolvidos no processo
The importance of the collaborator´s commitment to the organization´s objectives is evidenced in function of the new paradigm of industrial production: the integrated flexible automation. Since the beginning of mass production plants started by the automobile industry until recently, the paradigm taylorism/fordism has been the dominant. This model, marked
Publicado em: 2001
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10. Estrategias numericas para solução de modelos de não-equilibrio para absorção gasosa com reações quimicas complexas (regime estacionario e dinamico)
Gas absorption with chemical reactions is a very common industrial separation processo Until now the traditional equilibrium stage model have been the main tools to the design and unsteady state simulations of the gas-liquid contact equipment. The nonequilibrium model based on mass transfers fundamentais presents a more realistic description of the gas-liqui
Publicado em: 2000
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11. Cinetica da sintese da amonia
Ammonia is one of the nitrogen derivative that has a great industrial importance and, such as, its production from the synthesis gas (N2:H2) has been by several investigators. catalytic studied the extensive bibliographical research shows a good agreement among several authors as for the existence o f a dissociative mechanism for the reaction on iron promote
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 1984
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12. Kinetics of p-nitrophenol mineralization by a Pseudomonas sp.: effects of second substrates.
The kinetics of simultaneous mineralization of p-nitrophenol (PNP) and glucose by Pseudomonas sp. were evaluated by nonlinear regression analysis. Pseudomonas sp. did not mineralize PNP at a concentration of 10 ng/ml but metabolized it at concentrations of 50 ng/ml or higher. The Ks value for PNP mineralization by Pseudomonas sp. was 1.1 micrograms/ml, where