159 research outputs found
The choice of the spectral region in the use of spectroscopic and chemometric methods
A method is presented for the choice of spectral regions when absorption measurements are coupled to chemometric tools to perform quantitative analyses. The method is based on the spectral distribution of the relative standard deviation of concentration (s c/c). It has been applied to the development of PLS-FTNIR calibration models for the determination of density and MON of gasoline, and ethanol content and density of ethanol fuel. The new method was also compared with the correlation (R²) method and has proved to generate PLS calibration models that present better accuracy and precision than those based on R²
CONJUGAÇÃO DOS MÉTODOS DA MATRIZ DE INTERAÇÃO E DO CHECK-LIST NA AVALIAÇÃO QUALI-QUANTITATIVA DE IMPACTOS AMBIENTAIS DE UM PROGRAMA DE FOMENTO FLORESTAL
Polyphasic characterisation of Burkholderia cepaciacomplex species isolated from children with cystic fibrosis
Familial cerebral cavernous malformations: Rio de Janeiro study and review of the recommendations for management
Consumo hídrico e coeficiente de cultura da mamoneira na microrregião de Lavras, Minas Gerais
Comportamento de predação e conversão alimentar de Podisus nigrispinus sobre a traça-do-tomateiro
Severidade da antracnose e qualidade dos frutos de maracujá-amarelo tratados com produtos naturais em pós-colheita
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