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Mostrando ítems 11-20 de 94
Gastric anti-ulcer activity of leaf fractions obtained of polar extract from Wilbrandia ebracteata in mice
(Taylor & Francis Ltd, 2009-01-01)
Leaf fractions of Wilbrandia ebracteata were investigated for anti-ulcerogenic effects in ethanol and indomethacin-induced gastric ulcer assays in mice. Protective anti-ulcer effects were detected only in the ethanol-induced ...
FTIR – ATR aplicado à discriminação de microalgas planctônicas verdes cocóides
(Universidade Federal de São CarlosBRUFSCarPrograma de Pós-Graduação em Ecologia e Recursos Naturais - PPGERN, 2014-05-30)
This work proposes the use of the Fourier Transform Infrared (FTIR) spectroscopy as part of a polyphasic approach to assist the identification and classification of coccoid green microalgae. Attenuated Total Reflectance ...
Monitoramento por espectroscopia dos compostos fenólicos e furaldeídos gerados no processamento de biomassa lignocelulósica
(Universidade Federal de São CarlosUFSCarPrograma de Pós-Graduação em Engenharia Química - PPGEQCâmpus São Carlos, 2017-02-20)
The major process challenge of the second-generation ethanol (2G) production is related
with characterization of hydrolyzate from lignocellulosic biomass, which often contains
high quantities of phenolic compounds and ...
Estudo da potencialidade da espectroscopia de infravermelho próximo na análise de cabelo utilizando ferramentas quimiométricas para diferenciar fumantes de não fumantes
(Universidade Federal do Rio Grande do NorteBRUFRNPrograma de Pós-Graduação em QuímicaFísico-Química; Química, 2013-07-23)
This paper investigates the potential of near infrared spectroscopy (NIR) for forensic
analysis of human hair samples in order to differentiate smokers from nonsmokers, using
chemometric modeling as an analytical tool. We ...
Eficiência preditiva de características de qualidade da madeira de Eucalyptus com abordagens de Machine Learning aplicadas a dados NIRPredictive efficiency of Eucalyptus wood quality characteristics with Machine Leaning approaches applied to NIR data
(Universidade Federal de ViçosaGenética e Melhoramento, 2023)
Determination of the superficial citral content on microparticles: An application of NIR spectroscopy coupled with chemometric tools
(Elsevier Ltd, 2019)
This work evaluates near-infrared (NIR) spectroscopy coupled with chemometric tools for determining the superficial content of citral (SCCt) on microparticles. To perform this evaluation, using spray drying, citral was ...
Application of machine Learning in the discrimination of citrus fruit juices: uses of dielectric spectroscopy
(IEEEPE, 2020-11-17)
ABSTRACT
Nowadays, process control in the juice industry requires fast, safe and easily applicable methods. In this regard, the use of dielectric spectroscopy is being coupled to statistical methods such as machine learning ...
Estudio del efecto de diferentes tipos de poliestireno usados como envases plásticos para alimentos sobre la migración global mediante espectroscopia IR-ATR y PCA
(2016-05-27)
El efecto de diferentes tipos de poliestireno usados como empaques plásticos para alimentos sobre la migración global mediante espectroscopia infrarroja en modo ATR y PCA fue estudiado. En el estudio fueron usadas un total ...
Espectroscopia na região do infravermelho próximo (NIR) e calibração multivariada: desenvolvimento de modelos PLS para a determinação da atividade antioxidante em amostras de própolis
(Universidade Tecnológica Federal do ParanáPato BrancoBrasilPrograma de Pós-Graduação em Tecnologia de Processos Químicos e BioquímicosUTFPR, 2018-02-27)
Propolis began to gain popularity due to its use in complementary and alternative medicine and has now stood out among researchers due to its biological and pharmacological properties such as antitumor, antimicrobial, ...