Data Modelling
Mostrando 1-12 de 366 artigos, teses e dissertações.
-
1. On the classification and treatment of outliers in a spatial context: A Bayesian Updating approach
Abstract Checking and treating extreme values is commonplace in modelling workflows. The main methods to manage outliers may be categorized into graphical, Kriging- and simulation-based approaches. While graphical methods usually classify outliers from a global perspective, geostatistical methods evaluate outliers in a local context. Ordinary-Kriging based a
REM, Int. Eng. J.. Publicado em: 2021-09
-
2. Estudo e validação de uma progressão de aprendizagem em cinética química de estudantes de nível superior
This work aims to study the learning progression of students from two federal universities in Rio de Janeiro within the scope of Chemical Kinetics. For the elaboration of the research questionnaire, 46 professors from eleven Brazilian universities were consulted and from the collected data, a questionnaire was elaborated and applied to 452 students of Pharma
Quím. Nova. Publicado em: 2021-03
-
3. DESIGN AND IMPLEMENTATION OF FLC APPLIED TO A SMART GREENHOUSE
ABSTRACT Greenhouse cultivation needs an accurate modelling and an optimised control system to ensure an adequate microclimatic condition for plants. It represents a complex task due to the high number of input factors. For this reason, an improved intermediate modelling was established under the platform of the MATLAB/Simulink environment to simulate the en
Eng. Agríc.. Publicado em: 2020-12
-
4. NONLINEAR MIXED-EFFECT HEIGHT-DIAMETER MODEL FOR Pinus pinaster AIT. AND Pinus radiata D. DON
ABSTRACT Tree height-diameter (H-D) relationships are important for routine forest assessment. Several H-D relationships have been developed for different species and more are still evolving. This study introduces new H-D model developed for Pinus pinaster and Pinus radiata in Spain, based on data from 184 and 96 permanent sample plots, respectively, collect
CERNE. Publicado em: 2020-03
-
5. Apropriação Linguística e Significado em Atividades de Modelagem Matemática
Resumo Neste artigo dirigimos nossa atenção para os diferentes jogos de linguagem associados ao desenvolvimento de atividades de Modelagem Matemática e os significados constituídos pelos alunos no interior destes jogos de linguagem em relação a equações diferenciais ordinárias de primeira ordem. A pesquisa está fundamentada na Modelagem Matemática
Bolema. Publicado em: 02/12/2019
-
6. A PROPOSAL FOR MODELING AND IMPLEMENTING AN INTEGRATED SYSTEM FOR BRAZILIAN CADASTRES ACCORDING TO ISO 19152:2012 LAND ADMINISTRATION DOMAIN MODEL
Abstract: This article proposes the modelling and implementation of an integrated system for Brazilian cadastres, based on the standardized model of land administration described in the ISO 19152:2012 LADM. The model was developed from the identification of the essential elements of the urban, the National Rural Cadastre System and the cadastres of public as
Bol. Ciênc. Geod.. Publicado em: 02/12/2019
-
7. Prediction of restrained shrinkage crack width of slag mortar composites using data mining techniques
ABSTRACT The purpose of this study is to develop data mining models to predict restrained shrinkage crack widths of slag mortar cementitious composites. A database published by BILIR et al. [1] was used to develop these models. As a modelling tool R environment was used to apply these data mining (DM) techniques. Several algorithms were tested and analyzed u
Matéria (Rio J.). Publicado em: 25/11/2019
-
8. Validity and reliability of the 36-Item Short Form Health Survey questionnaire version 2 among people living with HIV in Brazil
ABSTRACT Background: The 36-Item Short Form Health Survey questionnaire (SF-36) is a widely used instrument for evaluating health-related quality-of-life (HRQoL). The psychometric validation of the SF-36 version 2.0 (SF-36v2) in HIV-infected patients had not yet conducted in Brazil. Aim: To test data quality, reliability and validity of the SF-36v2 as a me
Braz J Infect Dis. Publicado em: 25/11/2019
-
9. PLANEJAMENTO E CONDUÇÃO DE DISCUSSÕES SOBRE NATUREZA DA CIÊNCIA OCORRIDAS EM UMA SITUAÇÃO DE ENSINO FUNDAMENTADA EM MODELAGEM CONDUZIDA POR UMA PROFESSORA EM FORMAÇÃO
RESUMO: Neste artigo apresentamos os resultados de uma pesquisa que investigou (i) como uma licencianda identificou aspectos de natureza da ciência (NdC) possíveis de serem discutidos no contexto de ensino fundamentado em modelagem; (ii) como tais discussões foram conduzidas; e (iii) a participação dos estudantes nas mesmas. As aulas ocorreram em uma tu
Ens. Pesqui. Educ. Ciênc. (Belo Horizonte). Publicado em: 25/11/2019
-
10. Ensaios de infiltração em modelos experimentais de coberturas secas utilizando cinzas de carvão mineral da Termelétrica do Pecém
RESUMO O elevado volume de cinzas de carvão mineral acumulado nas bacias de armazenamento da Usina Termoelétrica Energia Pecém resultou em uma demanda por pesquisas que propusessem diferentes formas de utilização desse resíduo, de modo a dar um destino final para este material. O uso das cinzas na forma de coberturas secas de depósitos de resíduos se
Matéria (Rio J.). Publicado em: 25/11/2019
-
11. MATHEMATICAL MODELLING AND IMMEDIATE AND LATENT QUALITY OF NATURAL IMMATURE COFFEE UNDER DIFFERENT DRYING CONDITIONS
ABSTRACT This work aimed to study the immediate and latent effects of different relative humidities on the quality of dried coffee fruits, describe the drying kinetics of natural immature coffee (Coffea arabica L.), and evaluate the mathematical model that best fits the experimental drying data. The drying was carried out in a fixed layer dryer coupled to a
Eng. Agríc.. Publicado em: 04/11/2019
-
12. Modelling beef cattle production systems from the Pampas in Brazil to assess intensification options
ABSTRACT Traditional livestock productivity is hard to estimate, since it depends on a gamut of animal production indicators that are difficult to measure for many farms. Thus, we propose an analytical method for estimating productivity and understanding the importance of animal production indicators under different full-cycle cattle production systems in Br
Sci. agric. (Piracicaba, Braz.). Publicado em: 04/11/2019