Calibrating
Mostrando 1-12 de 54 artigos, teses e dissertações.
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1. FITTING AND CALIBRATING A MIXED-EFFECTS SEGMENTED TAPER MODEL FOR BRUTIAN PINE
ABSTRACT Taper models are one of several necessary tools in modern forest inventory, giving information on diameter at any point along the tree stem and this information can also be used to estimate stem volume. In this study, we used nonlinear mixed-effects (NLME) modeling approach to minimize existing statistical problems in constructing taper equations. A
CERNE. Publicado em: 2020-12
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2. Regionalization of hydrological model parameters for the semi-arid region of the northeast Brazil
ABSTRACT This work deals with the regionalization of parameters of hydrological models in semi-arid regions with data scarcity, focusing on part of the Brazilian semi-arid region that involves the States of Ceará, Rio Grande do Norte, Paraíba and Pernambuco. The hydrological model adopted was the MODHAC - Self-Calibrating Hydrological Model. A total of 45
RBRH. Publicado em: 14/11/2019
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3. Investigation of Thermal Effects in Coaxial Probe Method and Dielectric Characterization of Glycerol up to 140°C
Abstract Dielectric properties of a material are of paramount importance in many areas of knowledge. All scientific fields that deal with the interaction of electromagnetic radiation with matter demand this information. Consequently, suitable methods for obtaining accurate dielectric data are required. In the microwave community, the dielectric metrology wit
J. Microw. Optoelectron. Electromagn. Appl.. Publicado em: 2019-03
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4. Virtual Reality simulator for dental anesthesia training in the inferior alveolar nerve block
Abstract Objectives This study shows the development and validation of a dental anesthesia-training simulator, specifically for the inferior alveolar nerve block (IANB). The system developed provides the tactile sensation of inserting a real needle in a human patient, using Virtual Reality (VR) techniques and a haptic device that can provide a perceived fo
J. Appl. Oral Sci.. Publicado em: 2017-08
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5. Development and Evaluation of Calibration Procedure for a Force-Moment Balance Using Design of Experiments
Abstract To measure the aerodynamic and hydrodynamic forces and moments acting on scaled models in water and wind tunnel tests, multi-component strain gauge force and moment balance are usually used. Their performance and accuracy largely depends on the rig and calibration method, including the load table (design matrix) and analysis of experimental data. In
Lat. Am. j. solids struct.. Publicado em: 2016-01
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6. 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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7. Heuristic for solving capacitor allocation problems in electric energy radial distribution networks
The goal of the capacitor allocation problem in radial distribution networks is to minimize technical losses with consequential positive impacts on economic and environmental areas. The main objective is to define the size and location of the capacitors while considering load variations in a given horizon. The mathematical formulation for this planning probl
Pesquisa Operacional. Publicado em: 05/04/2012
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8. Reanálise CFSR-NCEP aplicada ao modelo SiB2 na simulação de fluxos de CO2 sobre o cultivo de soja em Cruz Alta.
The present work aimed to evaluate the behavior of CO2 fluxes, run by the Simple Biosphere Model (SiB2), by adopting CFSR-NCEP data reanalyzed as an atmospheric boundary condition. A statistical analysis was used in order to validate the results obtained using a coefficient for the adjusted model based on the simulation parameters when compared to the data o
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2012
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9. Calibração e avaliação do modelo ORYZA-APSIM para o arroz de terras altas no Brasil / Calibration and evaluation of the ORYZA-APSIM model for the upland rice in Brazil
With the purpose of calibrating and evaluating the ORYZA-APSIM model for the upland rice in Brazil, seventeen field experiments were carried out at EMBRAPA Arroz e Feijão, in four upland rice Brazilian regions (Santo Antônio de Goiás-GO, Sorriso-MT, Gurupi and Teresina-PI), from 2005/2006 to 2008/2009 seasons. The model was calibrated and evaluated for an
Publicado em: 2010
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10. Calibrando a microfísica de nuvens do modelo RAMS a partir dos dados coletados pelo ALPA. / Calibrating the cloud microphysics of the RAMS model from data collected by ALPA.
This work presents curve fittings for observed cloud droplet spectra as well as sensitivity tests to cloud microphysics parameters in RAMS 6.0 model, in order to attain a better configuration of this model for use in the state of Ceará. The methodology is based on comparisons between model results and observations collected during the ―Cloud Microphys
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 18/12/2009
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11. Development of analytical methods for As, Cd, Cr, Hg and Pb determination in paper and board food packaging materials by solid sampling graphite furnace atomic absorption spectrometry / Desenvolvimento de métodos analíticos para determinação de As, Cd, Cr, Hg e Pb em embalagens celulósicas para alimentos por espectrometria de absorção atômica e amostragem direta de sólidos
In the present work analytical methods for determination of As, Cd, Cr, Hg and Pb in paper and board food packaging materials by solid sampling graphite furnace atomic absorption spectrometry (SS-GF AAS) were developed. For direct determination of Hg, the best results were achieved using KMnO4 solution and an oxidant mixture (HNO3 + H2SO4) in combination wit
Publicado em: 2009
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12. Método automático para calibração polarimétrica de imagens SAR / Automatic approach to polarimetric calibration of SAR images
Este trabalho tem por objetivos desenvolver um conjunto de ferramentas computacionais para calibração radiométrica de imagens de radares de abertura sintética polarimétricos (PolSAR) e apresentar um novo método automático de calibração polarimétrica. Para atingir estes objetivos foi empregada uma abordagem metodológica divida em seis etapas, com b
Publicado em: 2009