Parameterization
Mostrando 13-24 de 110 artigos, teses e dissertações.
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13. Improved Electronic Structure and Optical Performance of Bi2Te3-xSex From First-principle Calculations Within TB-mBJ Exchange Potential
Using the first-principle calculations of density functional theory within the (FP-LAPW) method, we have investigated the structural, electronic and optical properties of Bi2Te3-xSex alloys with compositions x = 0, 1, 2 and 3 of Se. The generalized gradient approximation functional of Wu and Cohen (GGA-PBE) is used to calculate ground state structural parame
Mat. Res.. Publicado em: 17/11/2017
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14. The effect of constant practice in transfer tests
Abstract BACKGROUND There is aconsensus that repetition observed in constant practice producesminimalbenefits to the transfer of learning. OBJECTIVE The purpose of this study was to investigatein 3 experiments the effects of constant practicein transfer contexts. METHODOLOGY Participants were asked during acquisition phase, in all experiments, to press fo
Motriz: rev. educ. fis.. Publicado em: 2017-03
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15. The Sensitivity of Wind Forecasts with a Mesoscale Meteorological Model at the Centro de Lançamento de Alcântara
ABSTRACT: The sensitivity of the planetary boundary layer (PBL) parameterizations is investigated using the hybrid Fifth Generation Penn State University/National Center for Atmospheric Research (NCAR) Mesoscale Model (MM5) and its results were compared with observations from two field campaigns held during the dry and wet seasons at the Centro de Lançament
J. Aerosp. Technol. Manag.. Publicado em: 2015-06
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16. Ab. initio study of the structural, elastic, electronic and optical properties of Cu3N
Electronic, optical, elastic, properties of Copper nitride (Cu3N) in cubic anti- ReO3 phase have been studied using the full-potential augmented plane waves (FP-LAPW) within density functional theory (DFT) framework. Generalized gradient approximation (GGA), local density approximation (LDA), Perdew - Burke - Ernzerhof generalized parameterization of gradien
Mat. Res.. Publicado em: 01/04/2014
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17. Process-based simple model for simulating sugarcane growth and production
Dynamic simulation models can increase research efficiency and improve risk management of agriculture. Crop models are still little used for sugarcane (Saccharum spp.) because the lack of understanding of their capabilities and limitations, lack of experience in calibrating them, difficulties in evaluating and using models, and a general lack of model credib
Sci. agric. (Piracicaba, Braz.). Publicado em: 2014-02
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18. Simulation and manufacturing of a miniaturized exponential UWB TEM horn antenna for UWB radar applications
This paper presents the parameterization of the structure of a miniaturized exponential UWB TEM horn antenna and its effect on the matching impedance and directivity. In addition, a microstrip balun that feeds the antenna was proposed in order to improve the balance, and the return loss for low frequencies. Both the antenna and the microstrip balun were simu
J. Microw. Optoelectron. Electromagn. Appl.. Publicado em: 2013-12
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19. Utilização das equações de Navier Stokes com a parametrização convectiva BMJ para prognóstico de temperatura, umidade e vento sobre diferentes condições de estabilidade atmosférica utilizando o modelo regional ETA / USE OF THE NAVIER - STOKES BMJ WITH CONVECTIVE PARAMETERIZATION FOR FORCAST TEMPERATURE, MOISTURE AND WIND ON DIFFERENT CONDITIONS OF ATMOSPHERIC STABILITY USING ETA REGIONAL MODEL
Nesta pesquisa é feita uma abordagem sobre o impacto da parametrização convectiva de Bettes Miller Janjic (BMJ) na temperatura, umidade e vento prognosticados pelo modelo ETA. Há vários trabalhos na literatura que focalizam este tema, poucos direcionados, em particular, para o estado da Paraíba, mas nenhum deles usa a metodologia descrita neste. É sab
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 26/10/2012
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20. Tomada de decisão em redes logísticas de reciclagem de materiais através da dinâmica de sistemas / Decision making in logistics networks recycling of materials through System Dynamics
The principal aim of this work is to study a model of the closed-loop supply chain, which is based on systemic behavior, through the System Dynamics as a decision making tool. Firstly this model is adapted to the Brazilian issues and then it is applied in a recycling network, in this case it is the municipal solid waste of São Carlos city. The proposal invo
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 27/02/2012
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21. Estimating reaction constants by ab initio molecular modeling: a study on the oxidation of phenol to catechol and hydroquinone in advanced oxidation processes
Molecular modeling is growing as a research tool in Chemical Engineering studies, as can be seen by a simple research on the latest publications in the field. Molecular investigations retrieve information on properties often accessible only by expensive and time-consuming experimental techniques, such as those involved in the study of radical-based chain rea
Brazilian Journal of Chemical Engineering. Publicado em: 2012-03
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22. PARAMETRIZAÇÃO DO TRANSPORTE DE ENERGIA CINÉTICA TURBULENTA NA CAMADA LIMITE CONVECTIVA / PARAMETERIZATION FOR THE TURBULENT KINETIC ENERGY TRANSPORT IN THE CONVECTIVE BOUNDARY LAYER
Neste trabalho, uma parametrização para os termos de transporte da equação de balanço de energia cinética turbulenta (ECT), válida para uma camada limite convectiva (CLC), é apresentada. Esta é uma tarefa complicada de ser realizada a partir de dados experimentais, especialmente devido a dificuldade associada às medidas das flutuações de pressão
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 15/12/2011
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23. Parametrização do modelo 3-PG para teca (Tectona grandis L.f.) e dos sistemas FERTI-UFV e NUTRI-UFV para subsidiar o seu manejo nutricional / Parameterization of 3-PG model for teak (Tectona grandis L.f.) and of FERTI-UFV and NUTRI-UFV systems to subsidize its nutritional management
A teca (Tectona grandis L.f.) é originária do sudoeste asiático, sendo cultivada no Mato Grosso com sucesso, visando à obtenção de madeira para serraria de ótima qualidade e de elevado valor no mercado internacional. O potencial produtivo de povoamentos de teca pode ser obtido por meio de modelagem baseada em processos e constitui-se em variável de e
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 26/07/2011
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24. Proposta e avaliação de um modelo computacional de gerador central de padrões / Proposal and evaluation of a computational model of Central Pattern Generator
The concept of Central Pattern Generator-CPG can be described as neural network capable of producing coordinated rhythmic locomotor activity apart from any external rhythm or sensorial stimuli. As this group of neurons are autonomic and are located in the spinal medulla, is experimentally observed that brainless animal‟s exhibit robotized locomotor act
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 02/06/2011