Zobrazeno 1 - 10
of 61
pro vyhledávání: '"Douglas Queiroz Santos"'
Autor:
Caio Luiz Lins-Candeiro, Karen Katlein Dolenkei, Luiz Renato Paranhos, Douglas Queiroz Santos, Jaime Aparecido Cury, Juliana Pereira da Silva Faquim
Publikováno v:
Revista Ambiente & Água, Vol 15, Iss 6, Pp 1-11 (2020)
The surveillance of the concentration of fluoride in the public water supply aims to ensure the balance between the benefits (carie prevention) and risk (dental fluorosis) of water fluoridation programs. The aim of this study was to check the accurac
Externí odkaz:
https://doaj.org/article/3a38b5e2d7aa4c0fa8a737232670359c
Autor:
Baltazar Vasco Sitoe, Lucas Gustavo da Costa, Brendon Araújo dos Santos, Douglas Queiroz Santos, Waldomiro Borges Neto
Publikováno v:
Química Nova, Vol 43, Iss 1, Pp 1-8 (2020)
Externí odkaz:
https://doaj.org/article/ca85dd5d5bc24fa1aad9227c6a038c75
Autor:
Ana Lúcia de de Lima, Ana Paula de Lima, Flaysner Magayver Portela, Douglas Queiroz Santos, Waldomiro Borges Neto, Manuel Gonzalo Hernández-Terrones, José Domingos Fabris
Publikováno v:
Eclética Química, Vol 35, Iss 4, Pp 101-106 (2018)
Foram avaliados, a partir de um delineamento estatístico de um conjunto de ensaios experimentais, os efeitos (i) do tempo; (ii) da velocidade de rotação; (iii) da razão etanol:triglicerídeos; (iv) do tipo e (v) da quantidade do catalisador e (vi
Externí odkaz:
https://doaj.org/article/1fd34f5f4e2c476bafa998d6bb1959ff
Autor:
Douglas Queiroz Santos, Ana Paula de Lima, Maíra Martins Franco, David Maikel Fernandes, Waldomiro Borges Neto, José Domingos Fabris
Publikováno v:
AIMS Energy, Vol 2, Iss 2, Pp 183-192 (2014)
This work was devoted to the transesterification of corn oil either with methyl or ethyl alcohol and to the characterization of the biodiesels (composed by FAME—fatty acid methyl esters—or FAEE—fatty acid ethyl esters, respectively) produced. A
Externí odkaz:
https://doaj.org/article/7064b236236e4e639a05a766828d879b
Autor:
Douglas Queiroz Santos, Lígia Rodrigues De Oliveira, Baltazar Vasco Sitoe, Raiana R. Seixas, Lucas Gustavo da Costa, Ademar Domingos Viagem Máquina
Publikováno v:
Revista Virtual de Química. 13:127-135
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f1f5a3d5e1ce0ab86a9655d5d051e182
https://doi.org/10.21577/1984-6835.20200134
https://doi.org/10.21577/1984-6835.20200134
Autor:
Paulo Capel Narvai, Stefan Vilges de Oliveira, Marília Rodrigues Moreira, Juliana Pereira da Silva Faquim, Douglas Queiroz Santos
Publikováno v:
Saúde e Pesquisa. 13:821-830
This study aimed to analyze the fluoride levels in the public water supply in Uberlândia, State of Minas Gerais, and, in addition, to compare the values with data from the operational control and from a reference laboratory. A total of 126 samples w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::178e3e1c64fd67d5993512ac805ddedb
https://doi.org/10.17765/2176-9206.2020v13n4p821-830
https://doi.org/10.17765/2176-9206.2020v13n4p821-830
Autor:
Ademar Domingos Viagem Máquina, Douglas Queiroz Santos, Felipe Bachion de Santana, Baltazar Vasco Sitoe, Waldomiro Borges Neto
Publikováno v:
Analytical Letters. 54:790-801
A methodology was developed to monitor the adulteration of the B10 blend of diesel and crambe biodiesel using proton nuclear magnetic resonance (1H NMR) spectroscopy combined with data driven soft ...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7201356f219922375314665f1acd1d08
https://doi.org/10.1080/00032719.2020.1782928
https://doi.org/10.1080/00032719.2020.1782928
Autor:
Luiz Vitor Leonardi Harter, Juliana Quierati da Silva, Samuel Peres Chagas, Douglas Queiroz Santos, José Domingos Fabris
Publikováno v:
Renewable Energy. 151:426-433
Oil either from macauba (Acrocomia aculeate) and palm (Elaeis guineensis) fruit kernel was transesterified with methanol through the classical reaction with homogeneous alkaline catalyst. The produced fatty acid methyl esters (FAME) were further frac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::260d160b552cc8ef008bdce190d9f511
https://doi.org/10.1016/j.renene.2019.11.035
https://doi.org/10.1016/j.renene.2019.11.035
Autor:
Douglas Queiroz Santos, Lígia Rodrigues De Oliveira, Baltazar Vasco Sitoe, Ademar Domingos Viagem Máquina, Waldomiro Borges Neto, Lucas Caixeta Gontijo
Publikováno v:
Analytical Letters. 53:589-605
The use of mid-infrared spectrometry with horizontal attenuated total reflectance and Fourier transform, along with methods of variable selection by intervals, that is, interval partial least-squar...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4c98c8fcf16bb93b51ad7c81caba33f5
https://doi.org/10.1080/00032719.2019.1659805
https://doi.org/10.1080/00032719.2019.1659805
Autor:
Ademar Domingos Viagem Máquina, Waldomiro Borges Neto, Douglas Queiroz Santos, Baltazar Vasco Sitoe, José Eduardo Buiatte
Publikováno v:
Fuel. 237:373-379
Two methodologies were developed to quantify and classify the content of cotton biodiesel in blends with diesel using medium infrared spectroscopy associated with partial least squares (PLS) and partial least squares discriminant analysis (PLS-DA). T
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a481cae552e75f0b08997d00e50efb0f
https://doi.org/10.1016/j.fuel.2018.10.011
https://doi.org/10.1016/j.fuel.2018.10.011