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Hyperspectral data analysis for chlorophyll content derivation in vineyards. Quality and yield of a vineyard are related to canopy biomass and leaf vigor, and proximal techniques have been used as alternatives to conventional methods to estimate these parameters. Knowledge on... ... Repository: BDPA Publication year: 2024
Comparison of dimensionality reduction methods to predict genomic breeding values for carcass traits in pigs. A significant contribution of molecular genetics is the direct use of DNA information to identify genetically superior individuals. With this approach, genome-wide selection (GWS) can be used for this... ... Repository: BDPA Publication year: 2015
Laser-induced breakdown spectroscopy associated with multivariate analysis applied to discriminate fertilizers of different nature. Repository: BDPA Publication year: 2017
Desenvolvimento e validação de método para quantificação de biodiesel em diesel na presença de óleo vegetal utilizando o infravermelho médio. Repository: BDPA Publication year: 2018
Experimento didático de quimiometria empregando imagens digitais obtidas por celular para determinar adulteração de azeite de oliva com óleo de soja: um tutorial, parte VI. The aim of this manuscript was to show the concepts involving data treatment of RGB based image analysis by univariate and multivariate approaches - the latter using Partial Least Squares (PLS) - usin... ... Repository: BDPA Publication year: 2022
Multivariate analysis of images in spectrophotometric methods: quantification of soil organic matter. Soil organic matter (SOM) is usually quantified by Walkley-Black titration method or using a spectrophotometric method. This study proposes an alternative method for quantification of SOM using digita... ... Repository: BDPA Publication year: 2021
A comparison of regression methods based on dimensional reduction for genomic prediction. multicollinearity and high dimensionality problems, making it impossible to obtain stable estimates through the traditional method of estimation based on ordinary least squares. To overcome such chall... ... Repository: BDPA Publication year: 2021
Prediction of dry matter, carbon and ash contents and identification of Calycophyllum spruceanum (Benth) organs by Near-Infrared spectrophotometry. Calycophyllum spruceanum (Benth) is a tree of the Amazon region popularly known as 'mulateiro', whose wood has multiple uses, from energy to folk medicine. Thus, it is extremely important to evaluate... ... Repository: BDPA Publication year: 2022
Monitoring mineral-associated organic matter in tropical pastures using near infrared spectroscopy. This study proposes an analytical methodology based on near infrared spectroscopy (NIRS) and partial least squares regression (PLSR) as an alternative for the measurement of stabilized and total soil... ... Repository: BDPA Publication year: 2021
Experimento didático de quimiometria para calibração multivariada na determinação de paracetamol em comprimidos comerciais utilizando espectroscopia no infravermelho próximo: um tutorial, parte II. The aim of this manuscript was to show the basic concepts and practical application of Partial Least Squares (PLS) as a tutorial, using the Matlab computing environment for beginners, undergraduate an... ... Repository: BDPA Publication year: 2013

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